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Kyocera TASKalfa 4820w Service Manual

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TASKalfa 4820w

SERVICE

MANUAL

Published in February 2012

5JZSM062

Rev. 2

WWW.SERVICE-MANUAL.NET

Table of Contents

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Page 1 More Service Manuals at www.service-manual.net TASKalfa 4820w SERVICE MANUAL Published in February 2012 5JZSM062 Rev. 2 WWW.SERVICE-MANUAL.NET...
Page 2 CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. It may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste officials for details in your area for proper disposal. ATTENTION IL Y A UN RISQUE D’EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE TYPE INCORRECT.
Page 3: Revision History
Revision history Revision Date Replaced pages Remarks June 6,2011 Chapter10 February 8,2012 1-3 Power consumption(Maximum) 1,440W→1,500W (US model) Acoustic noise Idling Max. 60db→50db Printing Max. 65db→57db WWW.SERVICE-MANUAL.NET...
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Page 5: Safety Precautions
Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities.
Page 6: Safety Warnings And Precautions
Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below: DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol.
Page 7: Installation Precautions
1. Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check that it is adequate for the rated current...................... •...
Page 8 2. Precautions for Maintenance WARNING • Always remove the power plug from the wall outlet before starting machine disassembly....• Always follow the procedures for maintenance described in the service manual and other related brochures............................• Under no circumstances attempt to bypass or disable safety features including safety mechanisms and protective circuits.
Page 9 • Do not remove the ozone filter, if any, from the copier except for routine replacement....... • Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself......................•...
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Page 11 This service manual includes the basic information about TASKalfa 4820w Multi-Function Printer, which is required when you during field service to maintain the product’s quality and reliability. Chapter 1 Introduction Overview (Features, specifications, name of parts and etc.) Chapter 2 Installation...
Page 12 Chapter 1 Introduction page 1- 2 1. 1 Features 1- 3 1. 2 Specifications 1. 2. 1 General 1- 3 1. 2. 2 Printer part 1- 4 1. 2. 3 Scanner part 1- 6 1- 7 1. 3 Specifications for Originals 1.
Page 13 1. 1 Features (1) TASKalfa 4820w is a single footprint Multi-Function Printer which can copy, scan and print. Advanced drivers and comprehensive print utilities make TASKalfa 4820w an advanced, easy to use system. (some functions may be optional) HDP(High Definition Print ) technology generates no waste toner.
Page 14: Specifications
1. 2 Specifications 1. 2. 1 General Subject Specification Configuration Console Power consumption 1,500W (US model) (Maximum) 1,680W (EU / Asia model) (scanner / controller included) Power consumption 30W or less (Low power mode) Acoustic noise Idling Max. 50db Printing Max.
Page 15: Printer Part
1. 2. 2. Printer part Subject Specification Printing method LED Array Electro photography Photoreceptor Organic Photoconductive Drum Print speed 80mm per second (Metric) 3.3ppm/A0 5.6ppm/A1 Landscape (Inch) 3.4ppm/E 5.8ppm/D Landscape Print head LED Array Resolution of print head 600dpi x 600dpi Print width Maximum 914mm or 36”...
Page 16 Subject Specification Media source 2 Roll Decks Manual Feeder (single cut sheet) Paper Tray (multiple cut sheet, option) Media (Recommended Media) US model: Bond 64g/m to 80g/m , US Bond (PB-20) Vellum US Vellum (XV-20) Film 4MIL (PF-4DDME) Europe/Asia model: Plain Paper 64g/m to 80g/m...
Page 17: Scanner Part
1. 2. 3 Scanner part Subject Specification Scanning method Contact Image Sensor (CIS) (5 pieces of A4 sized CIS) Light source LED (R/G/B) Setting of original Face up Starting point of scan Center Scan width Max: 914.4mm Min : 210mm Scan length Max: 6,000mm (Including the margin area)
Page 18: Special Documents
1. 3 Specifications for Originals 1. 3. 1 Original Standards (1) The width of original must range from 8.5” to 36” (210mm to 914.4mm). (2) The length of original must range 8.5” (210mm) to 25,000mm (3) The thickness of original must range from 0.05mm to 0.65mm. (4) The shape of original must be square, and it must be standard sized.
Page 19 1. 4. 1 Front Name Function Main Switch You can turn on/off the TASKalfa 4820w. Original Guides Feed the original under the Scanner Unit along the Original Guides. User Interface This is a Touch Screen, and many kinds of user operation are available.
Page 20 Open the Exit Cover when you remove the paper misfed inside the Fuser Unit. LAN Port Connect the LAN Cable to connect the TASKalfa 4820w to the network. (Do not connect a telephone line) Dehumidify Heater Switch Turn on the Dehumidify Heater with this switch when you (Optional in the US) would like to dry the paper in the humid season.
Page 21: Specifications For Scan Original
1. 5 Specifications for Scan Original A scan original must satisfy the following specifications. Thickness 0.05mm to 0.6mm Width 210mm to 914.4mm Length 210mm to 6,000mm (If an original is thicker than 0.6mm, its image quality is not guaranteed even it is transported.) Do not scan the following kinds of original, because you may damage the original or scanner itself! Sticked with paste Paste...
Page 22 Not square Wet image Made of metal or fabric Metal Fabric Patched Clipped or stapled Clipped Stapled WWW.SERVICE-MANUAL.NET 1-11...
Page 23 The following kinds of originals can be read with using a carrier sheet. Image quality or the reliability of paper feeding for them is not guaranteed. Rough surface Rough surface (Carbon paper for example) Punched WWW.SERVICE-MANUAL.NET 1-12...
Page 24: Papers Not Available To Use
1. 6 Specifications for Printing Media 1. 6. 1 Papers not available to use Do not use the following kinds of printing paper because you may damage the print engine! Excessively curled (a diameter of 50 mm or less) Folded Creased Torn Punched...
Page 25: Keeping The Paper In The Custody
Paper that has already been used for printing Extremely sticky Extremely thin and soft Extremely slippery OHP Film CAUTION Do not use the paper with staple, or do not use such conductive paper as aluminium foil and carbon paper. Such paper may become cause for the fire. NOTE (1) Print image may become light if printed on a paper of rough surface.
Page 26: Treatment Against Environmental Condition
High NOTE (1) TASKalfa 4820w is equipped with the Dehumidify Heater (option.) Using it in high humidity environment (65% or higher) is recommended. (2) “Void of image” and “crease of paper” will occur in case of extremely high or low humidity.
Page 27 Chapter 2 Installation The machine had passed our strict inspection after careful adjustment in the factory, and then it was packaged and shipped. Installation is an important work to make the machine work at customer’s site as same as it has passed our strict inspection before shipment. A service engineer has to understand machine’s function very well.
Page 28: Installation Requirements
2. 1 Installation Requirements The following conditions are required for the installation of the equipment. 1. Power source should be rated as: U.S.A: 120V +/-10%, 50/60Hz, 15A or higher Europe and Asia: 220-240V+6% or -10%, 50/60Hz, 10A or higher 2. The equipment must be on a dedicated circuit. 3.
Page 29 2. 2 Unpacking 2. 2. 1 Unpacking 1. Unwrap the machine. Put aside the following cardboard boxes. - Top : UI Unit Box (1), Accessory Box (2), empty Drum Box (3), Scanner Cover (4) - Roll Deck (Inside) : Exit Tray Box (5) Accessory Box UI Unit Box - Original Guide...
Page 30: Confirmation Of Accessories
2. 2. 2 Confirmation of Accessories Confirm the following parts are attached to the product. Accessory Box Item name Picture Number Item name Picture Number of article of article Original 1 each Cap Assy Guide 1 & 2 Toner Power Cartridge Cord (500g)
Page 31 UI Unit Box Item name Picture Number Item name Picture Number of article of article Monitor Holder Assembly Assy Bind Head Screw (M4x6) Exit Tray Box Item name Picture Number Item name Picture Number of article of article Exit Tray Exit Tray 2 Others Item name...
Page 32 2. 3 Leveling 1. Pull up the Lever 2 (1) to open the Engine. 2. Remove the screws (2) at both sides. 3. Remove 4 screws (3) at the bottom of both sides. 4. Remove 6 screws (4) at the back on both sides. 6.
Page 33 7. Close the Engine Unit. 8. Rotate 4 Leveling Bolts (7) on the bottom of the main body with a wrench to bring up the main body from the floor. Keep 85mm of distance between the bottom plate and the floor. (It is about 80mm before the adjustment.) 85mm NOTE Do not rotate the Levelling Bolts too much.
Page 34: Setup Of The Machine
2. 4 Setup of the Machine 1. Pull up on the Levers (1) to open the Engine. 2. Carefully remove the protection mat (2) under the Drum. 3. Open the Cover 4 (3). 4. Remove the screws (4) and flat washers (5) to release the Bands (6) at both sides. WWW.SERVICE-MANUAL.NET...
Page 35 5. Rotate up the Pins (7) and move them to the inside to pull them out from the holes. Remove the Cover 4 (3). 6. Open the Bypass Feeder (8). 7. Remove 4 pieces of screw (9). WWW.SERVICE-MANUAL.NET...
Page 36 8. Close the Bypass Feeder (8). Open the Developer Press Unit (10). 9. Disconnect the connector (11). 10. Remove 2 pieces of red screw (12) at both sides of the Developer Unit, which protect the Developer Unit from vibration during transportation.
Page 37 12. Remove 1 label (14) on the toner supply hole of Toner Hopper. 13. Remove 8 labels (14)(15) to remove wrapping sheet (16). 14. The process unit and toner cover should be open. The Photoconductive Drum is covered with a black sheet (21). Gently remove it pulling from the front.
Page 38 15. Install the Developer Unit (13) to the machine. Connect the connector (11). NOTE Both the Gear Helical 20T (18) on machine side and the Gear Helical 28T (19) on Developer Unit side must be in gear firmly with each other, but they may not be in gear with each other by just installing the Developer Unit to the machine. After installing the Developer Unit to the machine, rotate Gear Helical 34T (20: instead of Gear Helical 20T) by hand from under the Engine Unit.
Page 39 17. Close the Engine Unit. 18. Both the LED Head and the Image Corona are locked with the screws (21) being separated from the Drum, not to be damaged during the transportation. Loosen the screws (21) to unlock the Fixing Brackets (22) at both sides. Pressing down the Fixing Brackets (22) firmly, tighten the screws (21).
Page 40: Installing Monitor
2. 5 Installing Monitor 1. Insert the screws (M4x6) (1) into the screw hole on the right side frame of the machine. 2. Hook Monitor Assy (2) on the screws (1). WWW.SERVICE-MANUAL.NET 2-13...
Page 41 3. Fix Monitor Assy with 2 screws (M4x6) (3), and then tighten 2 screws (1). WWW.SERVICE-MANUAL.NET 2-14...
Page 42 4. Connect USB Cable (4, for Monitor), VGA Cable (5) and Power Supply cable (6) to the concerning connectors of the machine frame. Then connect one more USB Cable (7, for external USB device). For Monitor For Data NOTE Be sure to insert the USB plug of the USB Cables (4) (7) to the correct receptacles. First connect the monitor USB Cable (4) to the back of the 2 connectors on the machine.
Page 43: Installing Accessories
2. 6 Installing Accessories 1. Exit Tray (1), Original Guide (2) and Exit Tray 2 (3). NOTE Install Exit Tray 2 (3) in the correct direction. Wrong Correct WWW.SERVICE-MANUAL.NET 2-16...
Page 44 2. Open Cover 4 (4). 3. Shake Toner Cartridge (5) several times. 4. Pressing Lock Lever (6), locate the pin (7) on top of Toner Cartridge to the groove (8). Make sure that Lock Lever (6) correctly locks Toner Cartridge. 5.
Page 45 2. 7 IPS Installation Wizard On the initial power on, the UI screen shows “IPS Installation” wizard. Follow the wizard to complete the machine setup. NOTE IPS Installation Wizard appears on the initial power on till the completion of the wizard. 1.
Page 46 3. “IPS Installation wizard” appears. Press [Regional Settings]. 4. Select a language. Set date and time. Press [] to proceed. 5. Press [Supplies and Support]. WWW.SERVICE-MANUAL.NET 2-19...
Page 47 6. Tap on the field to switch to on-screen keyboard. Input a text concerning the field name and press [Enter]. (This can be later entered) Press [] to proceed. Touch 7. Press [Network]. 8. Configure IP Address (and DNS Server, WINS if needed). Press [] to proceed. WWW.SERVICE-MANUAL.NET 2-20...
Page 48 9. Press [Key Code]. 10. Press [Enter the New Keycode] and input a keycode for option feature(s). A green mark will appear beside feature(s) validated successfully. Press [] to proceed. 11. Press [Toner Setup]. WWW.SERVICE-MANUAL.NET 2-21...
Page 49 12. Press [Start]. Wait about 20 minutes to complete. NOTE Developer Unit should contain a certain amount of toner for printing, but does not at this time. (Only Toner Supply Roller holds a small amount.) [Toner Setup] will supply adequate toner to the Developer Unit. Reference Toner Setup Mode is a utility to supply toner powder from the installed Toner Cartridge to Developer Roller, and evens the toner level in it.
Page 50 14. The UI screen shows the procedure of replacing roll media. Follow the instruction to load a roll media. 15. The wizard is completed. WWW.SERVICE-MANUAL.NET 2-23...
Page 51 Chapter 3 Print / Scan Process Page 3- 2 3. 1 Print Process 3. 1. 1 Characteristic of toner 3- 2 3. 1. 2 Each step of the print process 3- 3 3. 1. 2. 1 Erasing (Removal of negative electric charges) 3- 5 3.
Page 52: Print Process
If we control the electric potentials, it is possible to move the toner from one place to another as we intend, or it is also possible to remove the toner from an unwanted place. TASKalfa 4820w controls the electric potentials properly working each part as Drum, Corona Units, Lamps, Developer Unit and Cleaning Roller.
Page 53 3. 1. 2 Each step of print process One cycle of print consists of the following 8 processes. 1. Erasing (Removal of negative electric charges) 2. Charge of Drum 3. Exposure 4. Development 5. Transfer 6. Separation 7. Drum Cleaning (Removal of remained toner) 8.
Page 54 When the printer is going to stop after printing, or when the used Roll Deck is changed with other one, TASKalfa 4820w will take the “Toner Collection Process” to remove the remained toner and place back into the Developer Unit.
Page 55 3. 1. 2. 1 Erasing (Removal of negative electric charges) As the first step of print cycle, it is necessary to remove the negative electric charges from the Drum, which have remained there after the former print cycle. The Drum has a characteristic to lose the negative electric charges if it is exposed to the light. So the Drum is rotated and evenly exposed to the light from the Eraser Lamp.
Page 56 3. 1. 2 .2 Charge of Drum The Image Corona discharges negative electric charges which are given to the Drum. The surface of Drum becomes about -620V evenly as a result, which corresponds to the white area of the printed image pattern. The Grid Plate is also connected to the High Voltage Power Supply individually.
Page 57 3. 1. 2. 3 Exposure According to the printed image pattern, the LED Head throws the light (740nm) onto some part of Drum which corresponds to the black area of printed image pattern. As the Drum has a characteristic to lose the negative electric charges if it is exposed to the light, this part of Drum surface loses the charges and its potential becomes about -20V.
Page 58 3. 1. 2. 4 Development The Developer Roller, which is evenly covered with the toner, is contacted to the Drum because the Developer Unit is pressed to the Drum. (The width of contact point is about 5mm.) The Developer Roller is supplied with -180V (+/-5V) during the print cycle. And both -620V area and -20V area exist on the Drum because the Electrostatic Latent Image has been formed in the former Exposure process.
Page 59 Even if some toner has not been removed by the Cleaning Roller but remained on the -620V area of Drum (It corresponds to the white area of the print) in the later [3.1.2.7 Drum Cleaning], this toner is removed at the time of Development because it moves to the Developer Roller of which potential (-180V) is higher than that of Drum (-620V).
Page 60 3. 1. 2. 5 Transfer The printing paper is charged positively as the Transfer Corona discharges positive electric charges from under the paper. The toner existing on the -20V area on the Drum will move to the printing paper because the potential of the paper comes to be higher than the Drum by the Transfer Process.
Page 61 3. 1. 2. 6 Separation The printing paper is attracted to the Drum after the Transfer because the potential of paper is positive and that of Drum is negative. It is necessary for avoiding the jam to separate the paper from the Drum by removing the static force between them.
Page 62 3. 1. 2. 7 Drum Cleaning (Removal of remained toner) Some amount of toner that has not been transferred onto the printing paper is remaining on the Drum. This remained toner will be removed by the Cleaning Roller. The Cleaning Roller is supplied with +450V (+/-5V), and there are some negative electric charges on the Drum at this time.
Page 63 3. 1. 2. 8 Fusing After Transfer / Separation Processes, the printing paper is transported to the Fuser Unit by the Inner Transport Unit. The Fuser Unit mainly consists of the Fuser Roller and the Pressure Roller. The Fuser Roller is very hot, and the Pressure Roller is strongly pressed to the Fuser Roller by the spring.
Page 64 3. 1. 3 Controlling the movement of toner in the Developer Unit There are 3 kinds of rollers called “Developer Roller”, “Regulation Roller” and “Toner Supply Roller” in the Developer Unit. Each roller is supplied with its own voltage. In the following list, the voltage of the Developer Roller (-180V) is measured against the ground. The other voltages mean the difference against the voltage of Developer Roller Bias.
Page 65 Taking advantage of the difference of potentials among these rollers, the movement of toner is controlled in the Developer Unit as follows. 1. The Toner Supply Roller carries the toner toward the Developer Roller. 2. When the toner reaches the contact point of these rollers, therefore, it moves onto the Developer Roller.
Page 66 5. The voltage of both sides of Regulation Roller is 0V as these parts are connected to the ground. It is higher than that of Developer Roller (-180V). When the toner reaches the contact point of these rollers, therefore, it moves onto the Regulation Roller.
Page 67 3. 1. 4 Toner Collection Process As explained in [3.1.2.7 Drum Cleaning], the Cleaning Roller is supplied with +450V to remove the remained toner from the Drum during the print cycle. This toner gathered by the Cleaning Roller is returned to the Developer Unit in the following 3 cases.
Page 68 3. The voltage supplied to the Developer Roller is also changed to +350V (+/-5V) in the Toner Collection Process. As the potential of Developer Roller becomes higher than that of Drum, toner on the Drum moves onto the Developer Roller. Then the toner is carried into the Developer Unit by both the Developer Roller and the Toner Supply Roller.
Page 69 Reference Voltages supplied to Regulation Roller and Toner Supply Roller are changed also as follows. Name of roller Supplied voltage Developer Roller +350V +/-5V against the ground Regulation Roller -80V +/-5V against the Developer Roller Bias (Center) Regulation Roller 0V (Ground) (Both sides) Toner Supply Roller Same voltage with the Developer Roller Bias...
Page 70 3. 1. 5 Density Compensation Process On rare occasion, loss of image density may occur under a special usage. TASKalfa 4820w has the ability to reduce such loss of image density and this enables to maintain a satisfactory image quality regardless of the machine usage.
Page 71: Scan Process
Then it outputs the image data to the IPS through the USB 2.0. 4. The IPS output the image data to the printer part of TASKalfa 4820w through the Interface 8 in case of “copy”, or it outputs to the Network PC through the LAN cable in case of “scan to file”.
Page 72 3. 2. 2 Positioning process of Image Block The scanner part of TASKalfa 4820w reads the image of original with 5 - CIS (Contact Image Sensor). As these CIS are arranged in 2 rows, there occurs a vertical gap of image among the image blocks.
Page 73 The Data Controller PCB removes the vertical gap among the Image Block according to the positioning setting (Y offset) specified through Scanner Utility. The image data before the positioning process The image data after the positioning process (Y offset) WWW.SERVICE-MANUAL.NET 3-23...
Page 74 Also the Data Controller PCB removes the duplication of image pixels among the Image Blocks according to the positioning setting (X overlap) specified through Scanner Utility. The image data after the positioning process (Y offset) The image data after the positioning process (X overlap) WWW.SERVICE-MANUAL.NET 3-24...
Page 75 Chapter 4 Electrical Page 4- 2 4. 1 General Information 4- 3 4. 2 Electrical Components Location 4. 2. 1 Right side 4- 3 4. 2. 2 Left side 4- 7 4. 2. 3 Back side 4- 8 4. 2. 4 LED Head Frame 4-12 4.
Page 76: General Information
4. 1 General Information This machine is mainly controlled by a microcomputer, which is located on DC Controller. This microcomputer reads input signals from sensors, and outputs the operation signals to motors, SSRs, solenoid, clutches and blowers on programmed timing. Sensor Driver DC Load...
Page 77: Electrical Components Location
4. 2 Electrical Components Location 4. 2. 1 Right Side 6 : 230V model only Item Symbol Signal name Name Type Function (POWER-OFF) Switch AJ8R2004BBCF Turning on and off the machine Switch FA1L-AA22 Shuts off the AC power to the DCP1 when Toner Hatch or the right side of Engine Unit is opened SSR1...
Page 78 NOTE Developer Bias (OUTPUT 2, 3) is outputted (or stopped) by the signal “BIAS_TRG”. The polarity of Bias is decided by the signal “BIAS_SW” WWW.SERVICE-MANUAL.NET...
Page 79 (120V model) (230V model) WWW.SERVICE-MANUAL.NET...
Page 80 Item Symbol Signal name Name Type Function DCP1 DC Power Supply LEB225F- Outputting each 24VDC, 5VDC 0524-U and 0VDC Fuse Walter Protecting the 24VDC from the TSC3.15AH over-current If you replace the fuses, make LITTLE sure to use one listed left. 0215 3.15MXP Switch (Option) SDDJE1...
Page 81: Left Side
4. 2. 2 Left Side Item Symbol Signal name Name Type Function PW12420 PW12420 PCB Assy PW12420 Overall sequence control PW6654B Driver PCB B PW6654B Driver for the motors, clutches and so on Switch V-162-1C25 Detecting whether or not the Toner Hatch or the left side of Engine Unit is opened (The machine does not shut off...
Page 82: Back Side
4. 2. 3 Back Side Item Symbol Signal name Name Type Function Blower D12F-24BL Assisting to transport the paper on the Inner Transport Unit ASFN90372 Cooling down the IPS Controller 90 DCP2 DC Power Supply LDA15F-12 Supplying the DC power to both the UI and the PW10523 PW11723 (B) PW11723 PCB...
Page 83 (Fuser Unit omitted) Item Symbol Signal name Name Type Function ASFN60372 Supporting media feeding approach ASFN60372 Supporting media feeding approach WWW.SERVICE-MANUAL.NET...
Page 84 Item Symbol Signal name Name Type Function Switch FA2L-BA22 It stops supplying the AC power (Optional in USA) to the Dehumidify Heater when the Roll Deck is opened. WWW.SERVICE-MANUAL.NET 4-10...
Page 85 Item Symbol Signal name Name Type Function BL3 & BL4 HEAT_BL_L Blower D12F-24BL 05 Exhausting the inside air. HEAT_BL_R (They are equipped with the Ozone Filter.) Switch FA1L-AA22 Shuts off the AC power to the DCP1 when the right side of Heater Hatch is opened.
Page 86 4. 2. 4 LED Head Frame Item Symbol Signal name Name Type Function PW6631 Eraser PCB A PW6631 Removing the negative electric charges from the Drum at the beginning of the Print Process WWW.SERVICE-MANUAL.NET 4-12...
Page 87 (Image Corona Unit removed) Item Symbol Signal name Name Type Function LED HEAD LED Head LH6604 Creating latent Images on Drum PW6693 HV-ZD Assy PW6693 Keeping the Grid Voltage constant (Control of the surface potential) WWW.SERVICE-MANUAL.NET 4-13...
Page 88: Main Frame
4. 2. 5 Main Frame (Drum removed) Item Symbol Signal name Name Type Function PW6631 Eraser PCB A PW6631 Assisting the paper separation by removing the electric charges from the Drum at the time of Separation Process DENS-S PH11 Toner Density Sensor GP2Y40010K0 Detecting the toner density on the drum surface.
Page 89 Item Symbol Signal name Name Type Function PRESS_M DC Motor DU2422-1 Pressing the Developer Unit to the Drum (Or keeping the Developer Unit away from the Drum) PRESS_S Sensor GP1A73A000J Detecting the Developer Unit is pressed or kept away REGIST_S Sensor PS117ED1 Detecting the paper at the...
Page 90 Item Symbol Signal name Name Type Function DOOR- Switch CS1A-B2CA Detecting the Roll Deck Open OPEN Error WWW.SERVICE-MANUAL.NET 4-16...
Page 91 4. 2. 6 Developer Unit Item Symbol Signal name Name Type Function TLS1 TONER_S Sensor TSP15DA10C- Detecting whether or not the toner exists in the Developer Unit TONER_M DC Motor DU2431-2 Driving the Toner Hopper to supply the toner to the Developer Unit WWW.SERVICE-MANUAL.NET 4-17...
Page 92: Fuser Unit
4. 2. 7 Fuser Unit Item Symbol Signal name Name Type Function Thermostat CH-152-35- Preventing over-heat Thermistor FS-K0113 Detecting the temperature on the central area of Fuser Roller Thermistor 3 FS-K0115 Detecting the temperature on the driven side of Fuser Roller WWW.SERVICE-MANUAL.NET 4-18...
Page 93 Item Symbol Signal name Name Type Function Lamp Heating up the central part of 120V : 305JG73990 Fuser Roller 230V : 305JG75000 Lamp Heating up the right and the left 120V : 305JG74000 part of Fuser Roller 230V : 305JG74990 HEAT_EXIT Sensor GP1A73A000J...
Page 94 Item Symbol Signal name Name Type Function STACK_SL Solenoid Deciding print path to either top / rear PH15 STACK_S Sensor Detecting stacked prints Sensor Detecting the paper mis-feed after Fuser Unit WWW.SERVICE-MANUAL.NET 4-20...
Page 95 4. 2. 8 Roll Deck Item Symbol Signal name Name Type Function FEED_CL Clutch MIC5NE-45 Feeding the roll paper from both Roll 1 and Roll 2 R1FD_CL Clutch MIC8NE-23 Feeding the Roll 1 forward R1BK_CL Clutch MIC8NE-09 Rewinding the Roll 1 R2FD_CL Clutch MIC8NE-23...
Page 96 (Dehumidify Heater: option for US model) Item Symbol Signal name Name Type Function Resister 120V 1K 15W Dehumidifying the roll paper 230V 3.5K Thermostat 2455RM-158- Controlling the temperature of Resister (The Resisters turn on when the Thermostat detects some decided temperature, and they turn off when it detects another decided temperature.) WWW.SERVICE-MANUAL.NET...
Page 97 Item Symbol Signal name Name Type Function R_EDGE Sensor PS117ED1 Detecting the trailing edge of the roll paper R1SET_S Sensor PS117ED1 Detecting the set of Roll 1 PH12 FEED_ENC Sensor GP1A73A000J Detecting the length of the proceeding paper to be cut R2SET_S Sensor PS117ED1...
Page 98: Cutter Unit
4. 2. 9 Cutter Unit Item Symbol Signal name Name Type Function Cutter Motor Moving the Cutter Blade Cutter Home Position Detecting the Home Position of Sensor Cutter Blade. WWW.SERVICE-MANUAL.NET 4-24...
Page 99 4. 2. 10 Inner Transport Unit Item Symbol Signal name Name Type Function STRIP_S Sensor GP1A73A000J Detecting the paper mis-feed at the Separation Area WWW.SERVICE-MANUAL.NET 4-25...
Page 100: Scanner Unit
4. 2. 11 Scanner Unit Item Symbol Signal name Name Type Function SVC Main BD K SVC Main BD K makes image (Data Controller) processes to the digital data sent from SVC CIS BD. And then it sends the processed image data to the controller.
Page 101 Item Symbol Signal name Name Type Function Sensor PS117ED1 It detects the insertion of original. Sensor PS117ED1 It detects original widths A4 (Landscape), A3, 11” and 12”. Sensor PS117ED1 It detects original widths A2, 17” and 18”. Sensor PS117ED1 It detects original widths A1, 22” and 24”.
Page 102 Item Symbol Signal name Name Type Function CIS Unit CIPS218CF601 CIS Units read the image of original, and then send the analog data to the SVC CIS BD. Motor Assembly Transporting the original. SVC PWR BD Converts the +24V to each +12V, (Power Supply) +5V and +3.3V.
Page 103 4. 3 Check & Adjustment of Analog Output from HV Power Supply 4. 3. 1 Situations necessary to check the analog output It is necessary to check the analog output from High Voltage Power Supply after replacing the following parts. PW12420 PCB (DC Controller) HV Power Supply PCB (EUK1MGA60HA) Please check the analog output for each of the following part, and please adjust if it is out of the...
Page 104 4. 3. 2 Analog Voltage to Image Corona The standard value of the voltage outputted from the HV Power Supply PCB to the Image Corona 1.30 +/-0.05V. Check and adjust the output current in the following way. 1. Connect the “+” cable of the multi-meter to the “CP11” pin on the HV Power Supply PCB (EUK1MGA60HA).
Page 105 3. Adjust the output voltage if it does not satisfy 1.30 +/-0.05V. To adjust it, rotate the VR101 with a screwdriver. VR101 multimeter (DC) WWW.SERVICE-MANUAL.NET 4-31...
Page 106 4. 3. 3 Analog Voltage to Transfer Corona The standard value of the voltage outputted from the HV Power Supply PCB to the Transfer Corona is specified to each type of paper as follows. Plain paper 1.20 +/-0.05V Tracing paper 1.00 +/-0.05V Film 1.00 +/-0.05V...
Page 107 2. Select the Test Print Mode, and make a test print using each type of paper (plain paper, tracing paper & Film) making reference to [8. 9 Test Print Mode]. As the high voltage is supplied to the Transfer Corona during the Test Print, check the voltage with the multi-meter.
Page 108 4. 3. 4 AC Component to Separation Corona The standard value of the AC Component outputted from the HV Power Supply PCB to the Separation Corona is 5.00 +/-0.05V. Check and adjust the AC Component in the following way. 1. Connect the “+” cable of the multi-meter to the “CP31” pin on the HV Power Supply PCB (EUK1MGA60HA).
Page 109 3. Adjust the AC Component if it does not satisfy 5.00 +/-0.05V. To adjust it, rotate the VR302 with a screwdriver. multimeter (DC) VR302 WWW.SERVICE-MANUAL.NET 4-35...
Page 110 4. 3. 5 DC Component to Separation Corona The standard value of the DC Component outputted from the HV Power Supply PCB to the Separation Corona is -250 +/-5V. Check and adjust the DC Component in the following way. 1. Connect the “+” cable of the multi-meter to the “CP33” pin on the HV Power Supply PCB (EUK1MGA60HA).
Page 111 3. Adjust the DC Component if it does not satisfy -250 +/-5V. To adjust it, rotate the VR303 with a screwdriver. VR303 multimeter (DC) ground WWW.SERVICE-MANUAL.NET 4-37...
Page 112 4. 3. 6 Negative Developer Bias to Developer Roller The Negative Developer Bias means the voltage supplied to the Developer Roller during the Print Cycle. The standard value of the Negative Developer Bias is as follows for each type of paper. Plain paper -180 +/-5V against the ground Tracing paper...
Page 113 2. Make a Test Print making reference to [8. 9 Test Print Mode]. As the Negative Developer Bias is supplied to the Developer Roller during the Test Print, check the voltage with the multi-meter. The standard value of the Negative Developer Bias for each type of media is: Plain paper -180 +/-5V against the ground Tracing paper...
Page 114 4. 3. 7 Positive Developer Bias to Developer Roller The Positive Developer Bias means the voltage supplied to the Developer Roller during the Cleaning Cycle. The standard value of the Positive Developer Bias is 0.350 +/-0.005V against the CP42. Check and adjust the Negative Developer Bias in the following way. 1.
Page 115 2. Make a Test Print making reference to [8. 9 Test Print Mode]. The Positive Developer Bias is supplied to the Developer Roller for some seconds after the printed paper has been ejected. Check the voltage with the multi-meter during that period. The standard value of the Positive Developer Bias is 0.350 +/-0.005V against the CP42.
Page 116 4. 3. 8 Bias gap between Developer Roller and Regulation Roller The standard value of the Bias gap between Developer Roller and Regulation Roller is +/-5V. Check and adjust it in the following way. 1. Connect the “+” cable of the multi-meter to the “OUTPUT3” pin on the HV Power Supply PCB (EUK1MGA60HA).
Page 117 3. If the value (voltage) is “120 +/-5V” or “160 +/- 5V”, Regulation Bias may be automatically adjusted by Density Compensation Process. “0006 Bias3 Count” Enter Special Operation Mode and then “ 2” 000000 The voltage “120V +/- 5V” is correct when the above 7-digit value shows “...
Page 118 4. 3. 9 Positive Cleaning Roller Bias (Print Cycle) The Positive Cleaning Roller Bias means the voltage supplied to the Cleaning Roller during the Print Process. The standard value of the Positive Cleaning Roller Bias is +450 +/-5V. Check and adjust it in the following way. 1.
Page 119 3. Adjust the Positive Cleaning Roller Bias if it does not satisfy +450 +/-5V. To adjust it, rotate the VR001 with a screwdriver. multimeter (DC) ground VR001 WWW.SERVICE-MANUAL.NET 4-45...
Page 120 4. 3.10 Negative Cleaning Roller Bias (Toner Collection Process) The Negative Cleaning Roller Bias means the voltage supplied to the Cleaning Roller during the Toner Collection Process, which is done after the completion of Print Process. The standard value of the Negative Cleaning Roller Bias is -550 +/-5V.
Page 121 3. Adjust the Negative Cleaning Roller Bias if it does not satisfy -550 +/-5V. To adjust it, rotate the VR002 with a screwdriver. multimeter (DC) VR002 ground WWW.SERVICE-MANUAL.NET 4-47...
Page 122 Chapter 5 Mechanical page 5- 1 5. 1 Outer Covers 5. 1. 1 Removal of Side Covers 5- 1 5. 1. 2 Removal of Cover 15 5- 2 5. 1. 3 Removal of Cover 14 5- 3 5- 5 5. 2 Developer Unit 5.
Page 123 5-249 5. 6 LED Head 5. 6. 1 Replacement of the LED Head Unit 5-249 5. 6. 2 LED focus adjustment 5-257 5. 6. 2. 1 Check of the Test Pattern Image 5-257 5. 6. 2. 2 Positioning of the Aluminum Blocks 5-258 5.
Page 124: Outer Covers
5. 1 Outer Covers 5. 1. 1 Removal of Side Covers 1. Pull up the Lever (1) to open the Engine Unit. 2. Remove the screws (2) at both sides. 3. Remove 4 pieces of screw (3) at both sides. WWW.SERVICE-MANUAL.NET...
Page 125 4. Remove 6 pieces of screw (4) at both sides. 5. Remove both Cover (5) and Cover (6). 5. 1. 2 Removal of Back Cover 1. Remove 4 pieces of screw (1), loosen 4 pieces of screw (2), and then remove the Back Cover (3).
Page 126 5. 1. 3 Removal of Scanner Cover 1. Remove 2 pieces of Tray (1). 2. Loosen 4 pieces of screw (2) on the back, and remove 4 pieces of screw (3) on the front. 3. Remove Scanner Cover (4). WWW.SERVICE-MANUAL.NET...
Page 127 4. Remove 3 screws (5). 5. Remove Shield Cover (6). WWW.SERVICE-MANUAL.NET...
Page 128: Developer Unit
5. 2 Developer Unit 5. 2. 1 Removal of the Developer Unit 1. Open the Cover (1). 2. Remove the 4x6 screws and washers (2) at both sides to make the Bands (3) free. 3. There are Pins (4) at both sides. Pull them up and then slide them inward to remove the Cover (1).
Page 129 4. Pull up the Lever (5) to open the Engine Unit. NOTE It is impossible to remove the Developer Unit if the Engine Unit is closed, because the driving gears are firmly locked when closed. 5. Open the Bypass Feeder (6). WWW.SERVICE-MANUAL.NET...
Page 130 6. Remove 4 pieces of 4x8 screw (7). 7. Close the Bypass Feeder (6), and then open the Developer Press Unit (8). 8. Disconnect the connector (9). Holding both Side Plates (10), remove the Developer Unit (11) from the machine. NOTE If you replace the whole Developer Unit, it is necessary to adjust the space between developer driving gears.
Page 131 5. 2. 2 Replacement of Recommended Periodic Replacement Parts NOTE (1) A periodic replacement for the following parts is recommended. This section shows how to replace all of them in one sequent operation. Refer to this section as well for replacement individual part listed below. Item Number Remarks...
Page 132 3. Remove 4 pieces of 4x6 screws (2) to remove the Hopper Assembly (3). 4. Remove 3 pieces of M4x6 screws (4) to remove Cover (5). 5. Remove Separator (6). WWW.SERVICE-MANUAL.NET...
Page 133 6. Remove 4 pieces of 4x6 screw (7) to remove Scraper Assembly (8). 7. Loosen 10 screws (9) to remove Scraper from Scraper Assembly. old Scraper NOTE Just loosen the screws as little as possible to remove Scraper. Doing so will reduce the new Scraper’s wave. WWW.SERVICE-MANUAL.NET 5-10...
Page 134 8. Put Scraper (10) in Scraper Assembly (8) and push Scraper’s edge to the inside. Scraper (10) should be placed that the numbers printed on one side face can be read in correct orientation. NOTE Visually check that Scraper’s bottom edge touches the round boss through the bracket’s opening.
Page 135 10. Tighten the screws from the center to the sides with holding around each screw on the bracket. Secure center to side Secure center to side NOTE Be sure to check for wave on Scraper’s edge. If there is, go back to step 7 to install Scraper again.
Page 136 14. Remove all the toner from Developer Unit. NOTE Do not reuse the removed toner. 15. On the driving side, remove Retaining Ring-C (11: C6) to remove Gear Helical 30T (12), Parallel Pin (13: 2.5x10) and Collar 3 (14) from Blade Roller shaft. NOTE Blade Roller (15) is pressed onto / released from Developer Roller (16) by Bracket 4 (17) (on the driving side) and Bracket 5 (18) (on the electrode plate side).
Page 137 16. Remove 5 screws (19: M4x8) (20: M4x6) to remove Pin 4 (21), Plate 9 (22), Collar (23). 17. Remove Washer (24: 8.1x14x0.5t) and Gear 29T-34T Assy (25) 18. Remove Gear Helical 30T (26) and Parallel Pin (27: 3x20) from Toner Supply Roller shaft. If you cannot remove Parallel Pin (27) at this time, remove it after the later step 15.
Page 138 19. Remove Retaining Ring-E (28: E7) to remove Washer (29: 8.1x12x0.2t) and Gear Helical 28T Assy (30). 20. Remove Retaining Ring-E (31: E10) to remove Washer (32: 12.2x20x0.5t) and Counter Roller (33) from Developer Roller shaft. 21. Remove 2 screws (34: M4x8) to remove Bracket 4 (17) and Spring (35). At this time, Blade Roller on the driving side will be released from Roller Developer by unsecured Bracket 4 (17).
Page 139 23. Remove 3 screws (38: M4x6) and 2 Retaining Ring-E (39: E10) to remove Collar (40) and Bracket 10 Assy (41). 24. Remove Gear Helical 30T (42) and Parallel Pin (43: 3x16) from Toner Supply Roller shaft. 25. Remove Washer (44: 12.1x20x0.2t), Gear Helical 25T (45), Parallel Pin (46: 3x16), Counter Roller (47) from Roller Developer shaft.
Page 140 26. Remove 2 screws (48: M4x6) to remove Bracket 5 (18) and Spring (49). At this time, Blade Roller on the electrode plate side will be released from Roller Developer by unsecured Bracket 5 (18). 27. Loosen 2 screws (50) to remove Bracket 19 (51). 28.
Page 141 30. Remove Blade Roller (15) from Developer Unit. Do not install the new Blade Roller at this time. 31. On the driving side, remove 3 screws (60: M4x6) and Retaining Ring-E (61: E10) to remove Washers (62: 12.2 x 20 x 0.5t), Bracket 8 Assy (63). 32.
Page 142 33. Remove Roller Developer (16). Do not install the new Roller Developer at this time. 34. On each side, remove Seal 1 (67). Remove 1 screw (68) to remove Seal R2 Assy / Seal L2 Assy (69) and Support Bracket(70). WWW.SERVICE-MANUAL.NET 5-19...
Page 143 35. On each side, remove Seal 23 (71: upper), Seal 4 (72: lower), Seal 3 (73: under). Replace with new ones. Seal Seal 4 Seal 3 NOTE Align the bottom end of Seal 3 (73) to the rib inside the side plate. Align the far ends of Seal 23 (71) and Seal 4 (72) to the top and bottom ends of Seal 3 (73) respectively.
Page 144 36. Install the new (74), Support Bracket (70), (75). Seal R2 Assy Seal L2 Assy Seal 1 NOTE (1) Fit the positioning boss to the longer hole on Support Bracket (70). (2) Do not tighten the screws (68) so much as the seals (74) will be transformed. WWW.SERVICE-MANUAL.NET 5-21...
Page 145 37. Apply the new (76), (77) Sheet 3 Steet 4 to both sides of the new Developer Roller. Keep water or grease away from between the sheets. 38. Install the new to Developer Unit and fix it with the bearings. Developer Roller NOTE (1) Note the installation direction.
Page 146 NOTE (3) Push Roller Developer against Seal 1 on the electrode plate side (A) to hold and keep its original position when reassembling. (4) While installing toward (A) then (B), be careful not to damage Sheet 3 and Sheet 4 on Roller Developer shaft.
Page 147 39. Reinstall Scraper Assembly. NOTE (1) For Scraper Assembly and Blade Roller, please reinstall Scraper Assembly first and then locate Blade Roller in position later. This will avoid making Scraper’s edge waving. (2) After reinstalling Scraper Assembly, check that neither Scraper (10) nor Seal 1 (75) flips up on both sides.
Page 148 41. Install the new to Developer Unit and fix it with the brackets. Blade Roller NOTE (1) Note the installation direction. The longer shaft should be placed to the driving side. electrode plate side driving side (2) Seal 1 (75) on each side should be seated in position along the bosses. out of position Correct Wrong...
Page 149 NOTE (5) After installing, check that Seal 1 (75), Sheet (78), Sheet 2 (79) are not damaged or deformed. (6) After locating, check that Scraper (10) is not wavy. (7) Blade Roller (15) is pressed onto / released from Developer Roller (16) by Bracket 4 (on the driving side) and Bracket 5 (on the electrode plate side).
Page 150 43. Make sure that the 6 screws (48) (55) (34) (52) are installed loose. If not, loosen them. 44. On the electrode plate side, fully press down the top of Bracket 5 (18). With pressing, tighten 2 screws (48) to secure Bracket 5 (18). 45.
Page 151 46. Press down the top of Bracket 7 Assy (59) and Bracket 6 Assy (54) at a time. This will allow Blade Roller to be seated in the correct position. NOTE (1) Press down both Bracket 7 Assy and Bracket 6 Assy at the same time. Pressing only one side may lose the correct pressure balance between the electrode plate side and the gear side.
Page 152 48. Turn the screw (55) in just enough revolution so that its spring washer is held in the gap. spring washer on (55) released held 49. Turn the screw (52) in just enough revolution so that its spring washer is thrust in the gap. Do not turn it completely.
Page 153 51. Slowly tighten the screw (52) to secure Bracket 6 Assy (54). NOTE Do not tighten the screw (52) (55) quickly at this point of time. Otherwise proper and even pressurization of Blade Roller between left/right may fail, and this will make the toner layer on Roller Developer get thicker than required.
Page 154 55. Along the guide on the side plates, gently place Separator (6) on the added toner. Do not push it in. to be placed along the guide NOTE (1) Just put Separator (6) on the toner. It will be placed unseated. Do not push it completely at this time.
Page 155 56. Insert Developer Handle (82) to the shaft of Roller Developer, and gently turn Developer Handle (82). Separator will sink in the toner. Turn Developer Handle (82) until Separator sinks in position. NOTE (1) Slowly turn Developer Handle. Otherwise the toner may spill out. (2) Make sure that Separator (6) completely sinks in position by a 1/2 or more rotation of Developer Handle.
Page 156 58. Install Developer Handle (82) to Roller Developer shaft. Rotate Roller Developer several times so that the roller surface is covered with the toner. NOTE If the pressures of Blade Roller on either or both sides are weaker than required, the toner layer on the Developer Unit will be much thicker than required when you rotate the Roller Developer in the above procedure 53.
Page 157 62. Press [Service]. 63. On-screen Keypad appears. Input “8495107” and press [Enter]. 64. Service Configuration screen will appear. WWW.SERVICE-MANUAL.NET 5-34...
Page 158 65. Use the arrow keys to open [5/6 IPS Setup]. Press [Launch] in “IPS Service Software”. 66. Press [Yes]. 67. Press [Login] to log in Service Mode. WWW.SERVICE-MANUAL.NET 5-35...
Page 159 68. Press [Special Operation] in Service Mode Home. Operation Target screen appears. WWW.SERVICE-MANUAL.NET 5-36...
Page 160 69. Select [0006 Bias3 Count] from Name of mode menu. Press [Enter]. 0006 Bias3 Count Initializes Developer / Regulation Bias adjusted with Density Compensation Process 70. Confirmation screen appears. Press [Agree] to reset Bias Adjustment by Density Compensation Process. Then the system starts recalculation of the possible best Developer/Regulation Bias. (This will take time.) WWW.SERVICE-MANUAL.NET 5-37...
Page 161 71. Input screen appears. “0000000” Input with On-screen Keypad. NOTE The required value for the TASKalfa 4820w to reset Bias Adjustment by Density “0000000” Compensation Process is “0000000” to “0000003” correspond to the adjustment level in Density Compensation Process. For example, if you interchange the Developer Unit with your spare unit, you can manually set a certain adjustment level that would be suitable for your spare unit.
Page 162 5. 2. 3 Replacement of Roller Supply 1. Remove Blade Roller and Roller Developer from Developer Unit making reference to [5. 2. 2 Replacement of Developer Unit Components] on the page 5-8. 2. Remove Retaining Ring-E (1: E10) to remove Bearing (2). 3.
Page 163 5. Remove 9 screws (5) to remove Frame 2 (6). 6. Remove 2 screws (7) to remove Bracket Assy (8). WWW.SERVICE-MANUAL.NET 5-36...
Page 164 7. Remove Toner Supply Roller (9). NOTE (1) Sheet 6 (10), Sheet 5 (11), Seal R Assy or 12: reuse Seal L Assy (12) are attached on each side shaft of Roller Supply. Remove them from the old Roller Supply and then install them to the new Roller Supply.
Page 165 5. 2. 4 Replacement of Screw Assy 1. Remove the Developer Unit (1) from the machine making reference to [5. 2. 1 Removal of the Developer Unit] on the page 5-5. 2. Disconnect the connector (2). 3. Remove 4 pieces of 4x6 screws (3) which fix the Hopper Assembly (4). 4.
Page 166 5. Remove Separator (5). 6. Remove all the toner from Developer Unit. NOTE Do not reuse the removed toner. 7. Remove 5 screws (6: M4x8) (7: M4x6) to remove Pin 4 (8), Plate (9), Collar (10). 8. Remove Retaining Ring-E (11: E7) to remove Spacer (12), Gear 16T-34T (13). WWW.SERVICE-MANUAL.NET 5-39...
Page 167 9. Remove Retaining Ring-E (14: E5) (15: E7) to remove Washer (16), Gear 15T (17), Gear 16T (18) and Parallel Pin (19). 10. Remove Retaining Ring-E (20) to remove Washer (21) and Bush (22). 11. On the electrode plate side, remove 3 screws (23) to remove Holder 2 Assy (24). 12.
Page 168 13. Remove Screw A Assy (28: near Roller Supply), Screw B Assy (29: far from Roller Supply). Remove Side Seal (30) and Washer (31) on both ends of Screw A Assy (28) and Screw B Assy (29). WWW.SERVICE-MANUAL.NET 5-41...
Page 169 14. Remove each 2 screws (32: M3x5) to remove Screw A (33) / Screw B (34). NOTE When replacing Screw A (33) / Screw B (34), please note the followings. (1) Note the twisting direction around the shaft. (2) Each Screw A (33) / Screw B (34) has a 3 twist between the screws (32). (3) Screw A (33) / Screw B (34) are fragile.
Page 170 15. Replace all the components except Separator (5) and Hopper Assy (4) in position. 16. Shake the Starting Toner Bottle (35) well, and evenly add the toner to Developer Unit. WWW.SERVICE-MANUAL.NET 5-43...
Page 171 17. Along the guide on the side plates, gently place Separator (5) on the added toner. Do not push it in. to be placed along the guide NOTE (1) Be careful of the direction of Separator (5). Do not install it in the wrong direction. (2) Just put Separator (5) on the toner.
Page 172 18. Insert Developer Handle (36) to the shaft of Roller Developer, and gently turn Developer Handle (36). Separator will sink in the toner. Turn Developer Handle (36) until Separator sinks in position. NOTE (1) Slowly turn Developer Handle. Otherwise the toner may spill out. (2) Make sure that Separator (5) completely sinks in position by a 1/2 or more rotation of Developer Handle.
Page 173 5. 2. 5 Replacement of DC Motor 1. Remove 3 pieces of 4x6 screw (1) to remove the Cover 2 (2). 2. Disconnect the connector (3), remove 2 pieces of 4x6 screw (4), and then remove the motor assembly. 3. Pressing the stoppers (5) inside, remove the Joint R (6). 4.
Page 174 5. 2. 6 Replacement of Sensor (TLS1) 1. Remove the Developer Unit (1) from the machine making reference to [5. 2. 1 Removal of the Developer Unit] on the page 5-5. 2. Disconnect the connector (2), and remove 2 pieces of 3x6 screw (3) to remove the Sensor (4). Replace the Sensor (4) with the new one.
Page 175 5. 2. 7 Adjustment of the space between gears (Necessary to adjust after replacing the Developer Unit) NOTE You do not have to adjust the space between gears basically as it has been adjusted in the factory. But please do it only when you replace the whole Developer Unit. The Developer Unit is driven by the Gear Helical 20T on the machine and the Gear Helical 28T on the Developer Unit.
Page 176 1. Remove the Developer Unit (1) from the machine making reference to [5. 2. 1 Removal of the Developer Unit] on the page 5-5. 2. Remove 2 screws (2) to remove each Bracket 32 (3) on the left and Bracket 33 (4) on the right. You will find Adjustment Plate (5) and Adjustment Plate 2 (6).
Page 177 3. On the left side, add (or remove) as many Adjustment Plate (5) as required, cover them with the Bracket 32 (3), and then fix with 2 screws (2). NOTE The following 3 kinds of Spacers are used on the left side of the machine. Spacer 305H674460 (thickness is 0.05mm) Spacer 5...
Page 178 4. On the right side, add (or remove) as many Adjustment Plate 2 (6) as required, cover them with the Bracket 33 (4), and then fix with 2 screws (2). NOTE The following 3 kinds of Spacers are used on the left side of the machine. Spacer 2 305H674470 (thickness is 0.05mm) Spacer 6...
Page 179 5. Put back the Developer Unit (1) to the machine. 6. There is Gear Helical 28T (7) on Developer Unit side. There is Gear Helical 20T (8) on Engine Unit, and also there is Gear Helical 34T (9) on Engine Unit. Gear Helical 28T (7) and Gear Helical 20T (8) are contacted each other when the Developer Unit is on the machine.
Page 180 Holding the Gear Helical 28T (7) firmly with one hand, move the Gear Helical 34T (9) with another hand whether there is any mechanical play between Gear Helical 28T (7) and Gear Helical 20T (8). Hold the Gear Helical 28T with one hand. Move Gear Helical 34T (instead of Gear Helical 20T) with another hand.
Page 181 5. 2. 8 Readjustment of the Pressure of Regulation Roller If the pressure of Blade Roller is weak, the toner layer on the Developer Unit will be much thicker than required when you rotate the Developer Roller. Pressurize the Blade Roller in the correct way as shown below in this case. (You will not be able to pressurize it successfully by the usual way of pressurization once a too thick toner layer is created.) To correct the pressure of Blade Roller against Developer Roller, remove the thicker toner layer on...
Page 182 4. Remove the Hopper Assembly (4). 5. Remove 3 pieces of M4x6 screws (5) to remove Cover (6). 6. Remove 4 pieces of 4x6 screw (7) to remove Scraper Assembly (8). WWW.SERVICE-MANUAL.NET 5-55...
Page 183 7. On the driving side, remove Retaining Ring-C (9: C6) to remove Gear Helical 30T (10), Parallel Pin (11: 2.5x10) and Collar 3 (12) from Blade Roller shaft. NOTE Blade Roller (13) is pressed onto / released from Developer Roller (14) by Bracket 4 (15) on the driving side, by Bracket 5 (16) on the electrode plate side.
Page 184 8. Remove 5 screws (17: M4x8) (18: M4x6) to remove Pin 4 (19), Plate 9 (20), Collar (21). 9. Remove Washer (22: 8.1x14x0.5t) and Gear 29T-34T Assy (23) 10. Remove Helical 30T (24) and Parallel Pin (25: 3x20) from Toner Supply Roller shaft. If you cannot remove Parallel Pin (25) at this time, remove it after the later step 12.
Page 185 11. Remove Retaining Ring-E (26: E7) to remove Washer (27: 8.1x12x0.2t) and Gear Helical 28T Assy (28). 12. Remove Retaining Ring-E (29: E10) to remove Washer (30: 12.2x20x0.5t) and Counter Roller (31) from Developer Roller shaft. 13. Remove 2 screws (32: M4x8) to remove Bracket 4 (15) and Spring (33). 14.
Page 186 15. Remove 3 screws (36: M4x6) and 2 Retaining Ring-E (37: E10) to remove Collar (38) and Bracket 10 Assy (39). 16. Remove Gear Helical 30T (40) and Parallel Pin (41: 3x16) from Toner Supply Roller shaft. 17. Remove Washer (42: 12.1x20x0.2t), Gear Helical 25T (43), Parallel Pin (44: 3x16), Counter Roller (45) from Developer Roller shaft.
Page 187 18. Remove 2 screws (46: M4x6) to remove Bracket 5 (16) and Spring (47). 19. Loosen 2 screws (48) to remove Bracket 19 (49). 20. On the driving side, remove 1 pan head screw (50: M4x8 W/ SW FW) to remove 1 flat washer (51: M4) and Bracket 6 Assy (52).
Page 188 22. Remove Blade Roller (13) from Developer Unit. Clean Blade Roller if it gets dirty. NOTE (1) Be careful not to damage Sheet (58) and Sheet 2 (59) on Blade Roller shaft. (2) Note the installation direction. The longer shaft should be placed to the driving side. electrode plate side driving side (3) Seal 1 (60) on each side should be seated in position along the boss (61).
Page 189 23. On Developer Roller (14), vacuum the toner around the contact point against Blade Roller (13). Vacuum toner stuck around the contact area NOTE If some toner remains on the surface of Roller Developer, the toner will cushion the pressure by Blade Roller.
Page 190 25. Reinstall Blade Roller (13). NOTE (1) Note the installation direction. The longer shaft should be placed to the driving side. electrode plate side driving side (2) Seal 1 (59) on each side should be seated in position along the bosses. out of position Correct Wrong...
Page 191 NOTE (5) After installing, check that Seal 1 (59), Sheet / Sheet 2 (on Blade Roller shaft) are not damaged or deformed. (6) After locating, check that Scraper (58) is not wavy. (7) Blade Roller (13) is pressed onto / released from Developer Roller (14) by Bracket 4 (on the driving side) and Bracket 5 (on the electrode plate side).
Page 192 26. Replace all the components except Gear Helical 30T (10) and Hopper Assy (4) in position. 27. Make sure that the 6 screws (46) (53) (32) (50) are installed loose. 28. On the electrode plate side, fully press down the top of Bracket 5 (16).
Page 193 30. Press down the top of Bracket 7 Assy (57) and Bracket 6 Assy (52) at a time. This will allow Blade Roller to be seated in the correct position. NOTE (1) Press down both Bracket 7 Assy and Bracket 6 Assy at the same time. Pressing only one side may lose the correct pressure balance between the electrode plate side and the gear side.
Page 194 32. Turn the screw (53) in just enough revolution so that its spring washer is held in the gap. spring washer on (53) released held 33. Turn the screw (50) in just enough revolution so that its spring washer is thrust in the gap. Do not turn it completely.
Page 195 35. Slowly tighten the screw (50) to secure Bracket 6 Assy (52). NOTE Do not tighten the screw (50) quickly at this time. Otherwise proper and even pressurization of Blade Roller between both the sides may be failed, and this will make the toner layer on Developer Roller get thicker than required.
Page 196 38. Install Developer Handle (63) to Developer Roller shaft. Rotate Developer Roller several times so that the roller surface is covered with the toner. NOTE If the pressures of Blade Roller on either or both sides are weaker than required, the toner layer on the Developer Unit will be much thicker than required when you rotate the Roller Developer.
Page 197 5. 3 Fuser Unit 5. 3. 1 Removal of Fuser Unit 1. Pull up the Lever 2 (1) to open the Engine Unit. 2. Remove 2 screws (2) on the front. 3. Remove 4 screws (3) on the side bottom. 4.
Page 198 5. Remove Cover Side 2 (5) / Cover Side (6). 6. Disconnect 4 connectors (7). 7. Open Exit Cover (8). WWW.SERVICE-MANUAL.NET 5-71...
Page 199 8. Remove 2 screws (9) to remove Exit Side Cover R / L (10). 9. Open 2 clamps (11) and disconnect 1 connector (12). 10. On the left side (your right hand), remove 1 piece of KL Clip (13). It is not necessary for your left hand side. WWW.SERVICE-MANUAL.NET 5-72...
Page 200 11. Slide Exit Cover (8) to the arrow direction (right hand side) to remove it from the machine. 12. Release the springs (14) on both sides. 13. Remove 1 connector (15). WWW.SERVICE-MANUAL.NET 5-73...
Page 201 14. Remove 1 screw (16) to release the hinge bracket (17). 15. With holding Fuser Cover (18)by one hand, slightly open it (A) and remove the hinge bracket (17). Slide Fuser Cover (18) to the arrow direction (left hand side) (B) to remove it from the machine.
Page 202 17. Open the Engine Unit. 18. Loosen 1 screw (21) to release the drive side of Fuser Unit. Reference The screw (21) rises or lowers the presser plate to hold the drive side of Fuser Unit. Release position Press position Presser 19.
Page 203 5. 3. 2 Reinstallation of Fuser Unit Reference This section shows Fuser Unit with Paper Exit Assy and Fuser Cover removed for clarification. 1. With Engine Unit open, fully mount Fuser Unit (1) to the machine 2. On the left side of the machine, rotate Pulley (2) counterclockwise to check the gear engagement gears between Fuser Unit and the machine.
Page 204 3. Install the Bracket R / L (3) with the screws (4) (5). Tighten the lower one (4) and then the upper one (5). 4. Tighten the screw (6) to fix Fuser Unit to the machine. 5. Close the Engine Unit. 6.
Page 205 5. 3. 3 Replacement of Recommended Periodic Replacement Parts NOTE A periodic replacement for them is recommended. This section shows how to replace all of them in one sequent operation. Item Number Remarks of article Roller Fusing All of these parts are contained in “Fuser Maintenance Kit”...
Page 206 4. Remove 6 screws (4) on the rear. 5. Remove Cover Side 2 (5) / Cover Side (6). 6. Disconnect 4 connectors (7). 7. Open Exit Cover (8). WWW.SERVICE-MANUAL.NET 5-79...
Page 207 8. Remove 2 screws (9) to remove Exit Side Cover R / L (10). 9. Open 2 clamps (11) and disconnect 1 connector (12). 10. On the left side (your right hand), remove 1 piece of KL Clip (13). It is not necessary for your left hand side. WWW.SERVICE-MANUAL.NET 5-80...
Page 208 11. Slide Exit Cover (8) to the arrow direction (right hand side) to remove it from the machine. 12. Release the springs (14) on both sides. 13. Remove 1 connector (15). 14. Remove 1 screw (16) to release the hinge bracket (17). WWW.SERVICE-MANUAL.NET 5-81...
Page 209 15. With holding Fuser Cover (18)by one hand, slightly open it (A) and remove the hinge bracket (17). Slide Fuser Cover (18) to the arrow direction (left hand side) (B) to remove it from the machine. 16. Remove the 4x6 screw (19) to remove each Nail Stripping Assembly (20). NOTE When reassembling, fix Nail Stripping Assembly with the screw while holding Nail Stripping Assembly down.
Page 210 19. Loosen 1 screw (22) to release the drive side of Fuser Unit. Reference The screw (22) rises or lowers the presser plate to hold the drive side of Fuser Unit. Release position Press position Presser 20. Pull and remove Fuser Unit (23) from the machine. WWW.SERVICE-MANUAL.NET 5-83...
Page 211 21. Disconnect the connectors (red) (white). Remove 4 screws (24) to release IR Lamps (red) (white). Remove 2 screws (25) to release the connector brackets. WHITE WHITE WHITE WHITE 22. Remove Cover (26) on both sides of Roller Fusing. Gently pull IR Lamps (red) (white) toward either way to remove them. WHITE WHITE WWW.SERVICE-MANUAL.NET...
Page 212 NOTE (1) Do not touch the glass part of the Lamp with a bare hand. (2) Do not interchange the IR Lamps (red) (white). One with red connectors should be installed to the media entrance side and the other with white connectors to the media exit side.
Page 213 24. On both sides, remove 4 KL Clips (28) to remove Arm 4 (29) and Arm 3 (30). 25. On the connector side, remove 1 screw (31) to remove Cover 2 (32). Disconnect the harness (33). 26. Remove 2 screws (34) to remove Bracket 6 Assy (35). WWW.SERVICE-MANUAL.NET 5-86...
Page 214 27. On the gear side, remove 1 screw (36) to remove Bracket 20 (37). 28. Remove 2 screws (38) to remove Bracket 7 Assy (39). 29. Remove 2 screws (40) on the media exit side. WWW.SERVICE-MANUAL.NET 5-87...
Page 215 30. On the connector side, loosen 1 screw (41) to release Bracket 2 (42). 31. On the gear side, loosen 1 screw (43) to release Bracket 3 (44). NOTE Reinstall Bracket 2 (42) and Bracket 3 (44) in the correct position. (1) Fully push to slide the bracket to the arrow direction so that the fold portion on the bracket will fit into the notch on Fuser Upper Unit.
Page 216 32. On the media entrance side, remove 2 screws (45) to release Thermostat Bracket (46). 33. Turn Fuser Upper Unit (47) to the back. Lift Fuser Upper Unit (47) upward to remove it. 34. On the gear side of Fuser Upper Unit, remove Retaining Ring-E (48) to remove Gear 30T (49). 35.
Page 217 36. Remove 2 screws (52) to remove Bearing Holder (53). 37. On the connector side of Fuser Upper Unit, remove 2 screws (54) to remove Bearing Holder (55). 38. On both sides, remove Bush (56). Replace with new ones. Bush WWW.SERVICE-MANUAL.NET 5-90...
Page 218 39. Remove Roller Fusing (57). NOTE Install Roller Fusing to Upper Fuser Assy in the correct direction. One end with a cutting should be placed to the gear side. cutting 40. Remove 2 screws (58) to remove Collar (59) from Roller Fusing (60). Replace with a new one.
Page 219 41. On the media exit side of Fuser Lower Unit, remove 2 screws (61) to remove Guide Plate 2 Assy (62). 42. Remove 1 screw (63) to remove each Nail Lower Assy (64). WWW.SERVICE-MANUAL.NET 5-92...
Page 220 43. Turn Nail Lower (65) to remove it from the bracket. Replace with a new one. Nail Lower WWW.SERVICE-MANUAL.NET 5-93...
Page 221 5. 3. 4 Replacement of Roller Pressure 1. Pull up the Lever 2 (1) to open the Engine Unit. 2. Remove 2 screws (2) on the front. 3. Remove 4 screws (3) on the side bottom. 4. Remove 6 screws (4) on the rear. WWW.SERVICE-MANUAL.NET 5-94...
Page 222 5. Remove Cover Side 2 (5) / Cover Side (6). 6. Disconnect 4 connectors (7). 7. Open Exit Cover (8). WWW.SERVICE-MANUAL.NET 5-95...
Page 223 8. Remove 2 screws (9) to remove Exit Side Cover R / L (10). 9. Open 2 clamps (11) and disconnect 1 connector (12). 10. On the left side (your right hand), remove 1 piece of KL Clip (13). It is not necessary for your left hand side. WWW.SERVICE-MANUAL.NET 5-96...
Page 224 11. Slide Exit Cover (8) to the arrow direction (right hand side) to remove it from the machine. 12. Release the springs (14) on both sides. 13. Remove 1 connector (15). WWW.SERVICE-MANUAL.NET 5-97...
Page 225 14. Remove 1 screw (16) to release the hinge bracket (17). 15. With holding Fuser Cover (18)by one hand, slightly open it (A) and remove the hinge bracket (17). Slide Fuser Cover (18) to the arrow direction (left hand side) (B) to remove it from the machine.
Page 226 17. Open the Engine Unit. 18. Loosen 1 screw (21) to release the drive side of Fuser Unit. Reference The screw (21) rises or lowers the presser plate to hold the drive side of Fuser Unit. Release position Press position Presser 19.
Page 227 20. On the connector side, remove 1 screw (23) to release Bracket 10 Assy (24). 21. On the connector side, remove 1 screw (25) to remove Cover 2 (26). Disconnect the harness (27). 22. Remove 2 screws (28) on the media exit side. WWW.SERVICE-MANUAL.NET 5-100...
Page 228 23. On both sides, remove 4 grip rings (29) to remove Arm 4 (30) and Arm 3 (31). 24. On the connector side, loosen 1 screw (32) to release Bracket 2 (33). 25. On the gear side, loosen 1 screw (34) to release Bracket 3 (35). WWW.SERVICE-MANUAL.NET 5-101...
Page 229 NOTE Reinstall Bracket 2 (33) and Bracket 3 (35) in the correct position. (1) Fully push the bracket to the arrow direction so that the fold portion on the bracket will fit into the notch on Fuser Upper Unit. (2) The 2 positioning bosses locate the bracket. fold The bracket should not ride over them.
Page 230 27. On the media exit side of Fuser Lower Unit, remove 2 screws (37) to remove Guide Plate 2 Assy (38). 28. Remove 2 screws (39) to remove Washer Special (40) and Guide Plate (41). NOTE When reassembling, make sure that the holes of Guide Plate fit the bosses on the bracket on both side.
Page 231 29. Remove Pressure Roller (42) from the unit. 30. Remove Retaining Ring-C (43) to remove Collar (44) (45: only on the gear side), Bearing (46) from each shaft end of Roller Pressure (47). Replace with a new one. Roller Pressure (gear side) (connector side)
Page 232 5. 3. 5 Fuser Pressure Adjustment (NIP width check) 1. Load a tracing paper roll in 36”/A0 width into any available Roll Deck. 2. Make a test print in pattern No.2 S(0) with the roll in 297mm length. 3. When the test print’s leading edge appears within 50mm at the exit cover, stop the print process by opening any cover.
Page 233 5. 3. 6 Replacement of Thermistor (TH1, TH2) 1. Remove the Fuser Unit (1) from the machine making reference to [5. 3. 1 Removal of the Fuser Unit] on the page 5-70. 2. Release the harness from the clamps (2). Remove the connectors (3: TH1, white) (4: TH2, black) from Bracket 10 Assy (5).
Page 234 4. Remove each 1 screw (7) to release Thermistor Assy (8: TH1, short harness) and Thermistor 3 Assy (9: TH3, long harness). 5. Remove 1 screw (10) to replace Thermistor (8: TH1) (9: TH2) with a new one. 8, 9 NOTE Be careful of the direction of Thermistor when reassembling.
Page 235 5. 3. 7 Replacement of Thermostat (TS1, TS2) 1. Remove the Fuser Unit (1) from the machine making reference to [5. 3. 1 Removal of the Fuser Unit] on the page 5-70. 2. Remove 2 screws (2: M4x6) to remove Thermostat Assy (3). 3.
Page 236 5. 3. 8 Replacement of Exit Sensor (PH3) 1. Remove the Fuser Unit (1) from the machine making reference to [5. 3. 1 Removal of the Fuser Unit] on the page 5-70. 2. Remove the harness (2) and remove the screw (3) to remove Exit Sensor Assy (4). Remove Exit Sensor (5) form Exit Sensor Assy (4).
Page 237 5. 4 Roll Deck 5. 4. 1 Replacement of Cutter Assembly 1. Draw out the Roll Deck (1). 2. Remove 4 screws (2) to remove Cover 1 (3). NOTE Make sure to insert the hooking part to the slit as the following photo when you put back the Cover 1 (3).
Page 238 3. Remove 7 screws (4) to remove Cover 14 (5). NOTE Make sure that the step part on the bottom side of Cover 14 (5) is inside the bottom frame. step frame 4. Open the wire saddle (6) and disconnect the connector (7) to release the harness. Remove 1 screw (8) and remove the clamp (9) to release the core.
Page 239 5. Remove 2 screws on the front (10) to remove Cutter Assy (11). Replace the whole Cutter Assy with a new one. NOTE (1) Reuse the clamp (9) and the core for a new Cutter Assembly. (2) Put the Cutter Assembly with the Cutter Motor up. If you put it with the Cutter Motor down, you will break the Cutter Motor Harness.
Page 240 5. 4. 2 Replacement of Clutches (CL3, CL4, CL5) of Roll 1 1. Draw out the Roll Deck (1). 2. Remove 7 screws (2) to remove Cover 14 (3). NOTE Make sure that the step part on the bottom side of Cover 14 (3) is inside the bottom frame. step frame WWW.SERVICE-MANUAL.NET...
Page 241 3. Remove Retaining Ring-C (4) and disconnect the harness (5) to remove each Clutch (6: CL3) or Clutch (7: CL4). Replace Clutch with a new one. 6, 7 4. Remove 1 Bind Head Screw (8) and 1 Pan Head Screw (9), disconnect the harness (10) to remove Clutch (11: CL5).
Page 242 5. 4. 3 Replacement of Clutches (CL6, CL7) of Roll 2 1. Draw out the Roll Deck (1). 2. Remove 3 screws (2) to remove Cover 16 (3). 3. Remove 1 Bind Head Screw (4) and 1 Pan Head Screw (5), disconnect the harness (6) to remove Clutch (7: CL6).
Page 243 4. Remove 1 Bind Head Screw (8) and 1 Pan Head Screw (9), disconnect the harness (10) to remove Clutch (11: CL7). Replace Clutch with a new one. WWW.SERVICE-MANUAL.NET 5-116...
Page 244: Replacement Of Timing Belt
5. 4. 4 Replacement of Timing Belt 633 1. Draw out the Roll Deck (1). 2. Remove 4 screws (2) to remove Cover 1 (3). NOTE Make sure to insert the hooking part to the slit as the following photo when you put back the Cover 1 (3).
Page 245 3. Remove 7 screws (4) to remove Cover 14 (5). NOTE Make sure that the step part on the bottom side of Cover 14 (5) is inside the bottom frame. step frame 4. Open the wire saddle (6) and disconnect the connector (7) to release the harness. Remove 1 screw (8) and remove the clamp (9) to release the core.
Page 246 5. Remove 2 screws on the front (10) to remove Cutter Assy (11). 6. Open 6 wire saddles (12) and release 3 connectors (13) to release the harness (14). 7. Remove Retaining Ring-C (15) to remove Clutch (16: CL4). 8. Remove 4 screws (17) to remove Bracket 33 (18). WWW.SERVICE-MANUAL.NET 5-119...
Page 247 9. Remove 3 screws (19) to remove Bracket 32 (20). 10. Loosen 1 screw (21) to release Pulley 3 (22). Push Pulley 3 (22) to the arrow direction and fix it. Replace Timing Belt 633 (23) with a new one. NOTE You do not have to adjust the belt tension.
Page 248 5. 4. 5 Replacement of Timing Belt 453 1. Draw out the Roll Deck (1). 2. Remove 7 screws (2) to remove Cover 22 (3). NOTE Make sure that the step part on the bottom side of Cover 22 (3) is inside the bottom frame. step frame WWW.SERVICE-MANUAL.NET...
Page 249 3. Loosen 1 screw (4) to release Pulley 3 (5). Move Pulley 3 (5) upward and fix it the screw (4) to release Timing Belt 453. 4. Remove 1 Bind Head Screw (6) and 1 Pan Head Screw (7) to remove Bracket 12 (8). Replace Timing Belt 453 (9) with a new one.
Page 250 5. 4. 6 Replacement of Timing Belt 330 1. Draw out the Roll Deck (1). 2. Remove 7 screws (2) to remove Cover 22 (3). NOTE Make sure that the step part on the bottom side of Cover 22 (3) is inside the bottom frame. step frame 3.
Page 251 5. 4. 7 Replacement of Sensor (PH6, PH7, PH9, PH12) NOTE (1) When reassembling, fit a boss or nails on the sensor into holes on the sensor bracket. boss nails (2) When reassembling, fit positioning bosses on the frame (or the sensor bracket) into the corresponding holes.
Page 252 3. Remove 8 screws (7) to remove Plate (8). 4. Remove 1 screw (9) to release the sensor bracket (10). Remove the connector (11) to remove the bracket (10). boss 5. Remove 1 screw (12: M3x6) and 2 KL Clips (13) to remove Shaft 4 (14) and Encoder 2 Assy (15).
Page 253 6. Remove 1 screw (17) to release the sensor bracket (18). Remove the connector (19) and 1 screw (20) to replace Sensor (21: PH7) with a new one. boss boss boss 7. Remove 1 screw (22) to release the sensor bracket (23). Remove the connector (24) and t1 screw (25) to replace Sensor (26: PH9) with a new one.
Page 254 5. 4. 8 Replacement of Sensor (PH8) 1. Draw out the Roll Deck (1). 2. Remove 7 screws (2) to remove Cover 14 (3). NOTE Make sure that the step part on the bottom side of Cover 14 (3) is inside the bottom frame. step frame WWW.SERVICE-MANUAL.NET...
Page 255 3. Remove 1 screw (4) to release the sensor bracket (5). Remove 1 connector (6) to replace Sensor (7: PH8) with a new one. NOTE (1) When reassembling, fit a boss or nails on the sensor into holes on the sensor bracket. nails (2) When reassembling, fit the positioning boss on the frame into the notch on the bracket.
Page 256 5. 4. 9 Replacement of Sensor (PH10) 1. Draw out the Roll Deck (1). 2. Remove 3 screws (2) to remove Cover (3). 3. Remove 1 screw (4) to release the sensor bracket (5). Remove 1 connector (6) to replace Sensor (7: PH10) with a new one.
Page 257 NOTE (1) When reassembling, fit a boss or nails on the sensor into holes on the sensor bracket. nails (2) When reassembling, fit the positioning boss on the frame into the notch on the bracket. boss WWW.SERVICE-MANUAL.NET 5-130...
Page 258 5. 4. 10 Replacement of Dehumidify Heater (Roll 1) 1. Draw out the Roll Deck (1). Remove a roll media if mounted. 2. Move Slide Guide (2) toward the middle. 3. Remove 2 screws (3) to remove Cover 15 (4). WWW.SERVICE-MANUAL.NET 5-131...
Page 259 4. Remove 7 screws (5) to remove Cover 22 (6). NOTE Make sure that the step part on the bottom side of Cover 22 (6) is inside the bottom frame. step frame 5. Disconnect 1 connector (7). WWW.SERVICE-MANUAL.NET 5-132...
Page 260 6. Remove 6 screws (8) to remove Roll 1 dehumidifier casing (9). 7. Remove 2 screws (10) and 1 connector (11) from each Resistor (12). Replace Resistor (square type) with a new one. WWW.SERVICE-MANUAL.NET 5-133...
Page 261 5. 4. 11 Replacement of Dehumidify Heater (Roll 2) 1. Draw out the Roll Deck (1). Remove a roll media if mounted. 2. Move Slide Guide (2) toward the middle. 3. Remove 2 screws (3). 4. Move Slide Guide (2) toward the far end. WWW.SERVICE-MANUAL.NET 5-134...
Page 262 5. Remove 2 screws (4) to remove Slide Guide 2 R Assy (5). 6. Remove 1 screw (6) to move Cover 7 (7). 7. Disconnect 1 connector (8). WWW.SERVICE-MANUAL.NET 5-135...
Page 263 8. Move Cover 4 (9) to the arrow direction to remove it. 9. Remove 3 screws (10) to remove Roll 2 dehumidifier casing (11). WWW.SERVICE-MANUAL.NET 5-136...
Page 264 10. Disconnect 1 connector (12). Remove 2 screws (13). Remove and replace Resistor (square type) (14) with a new one. WWW.SERVICE-MANUAL.NET 5-137...
Page 265: Photoconductive Drum
5. 5 Photoconductive Drum 5. 5. 1 Replacement of the Photoconductive Drum 1. Pull up the Lever (1) to open the Engine Unit. 2. Remove 2 screws (2) on the front. 3. Remove 4 screws (3) on the side bottom. WWW.SERVICE-MANUAL.NET 5-138...
Page 266 4. Remove 6 screws (4) on the rear. 5. Remove Cover (5) / Cover (6). 6. Close the Engine Unit. 7. Remove 2 pieces of Tray (7). WWW.SERVICE-MANUAL.NET 5-139...
Page 267 8. Remove 2 pieces of 4x6 screw (8) to remove the Cover (9). 9. Disconnect the connector (10), and open the wire saddles (11) to release the harness. NOTE Wind excessive length of the USB Cable with the wire saddles (11) when reassembling. Do not bundle the 2 cables in any of the wire saddles (11) together.
Page 268 11. Remove 4 pieces of 4x6 screw (13) and 2 pieces of washer screw (14). 12. Slide the Scanner Unit (15) fully backward. WWW.SERVICE-MANUAL.NET 5-141...
Page 269 13. There are 2 pieces of Stopper (16) at both sides, which lock the LED Head Frame. Loosen the screw (17) and then slide the Stoppers (16) outside to unlock the LED Head Frame. Lock position Unlock position WWW.SERVICE-MANUAL.NET 5-142...
Page 270 14. Open the LED Head Frame (18). NOTE The Stopper 2 (19) comes out automatically to prevent the LED Head Frame from falling down. Press the Stopper 2 as the right photo if you will close the LED Head Frame. 15.
Page 271 16. Remove 1 tooth washer screw (21: M4x8), and remove Plate 2 (22) and Pulley Gear (23). NOTE (1) Belt 4 (24) is automatically loosed with Engine Unit open. It will be strained with Engine Unit closed. (2) The tooth washer screw (21) has a tooth burr face washer of which burr face meets the composition surface.
Page 272 17. Remove the Collar (25) from the left Drum Shaft. NOTE The new (spare) Drum Assembly does not include the Collar (25). So please reuse it. 18. There are 2 pieces of screw (26) on the left which fix the Block (27). Loosen these screws (26) and rotate the Block (27) as the arrow marks.
Page 273 19. Similarly loosen 2 pieces of screw (28) on the right and rotate the Block 2 (29) as the arrow marks. 20. Remove Photoconductive Drum (30), and replace it with the new one. NOTE The Aluminium Block (27) and (29) maintain the focus of the LED Head. Therefore it is necessary to re-position them correctly after replacing the Photoconductive Drum.
Page 274 5. 5. 2 How to fix the Aluminium Blocks There are Aluminium Blocks at both sides of the Drum Shaft. As they maintain the focus of LED Head, it is necessary to re-position them correctly after replacing the Photoconductive Drum. Aluminium Blocks Print out the Test Pattern No.3 to check if the Aluminium Blocks are fixed at the correct position.
Page 275 There are Aluminium Blocks (A) (B) at both sides, and each of them is fixed with 2 screws (C) (D). Left side Right side Do as follows to fix the Aluminium Blocks correctly. a) Always fix the Aluminium Block of the left (A) first and then right (B). b) When you tighten 2 screws (C) (D) to fix each Aluminium Block, always tighten the lower one (C) first and then the upper one (D).
Page 276 5. 5. 2. 1 Fixing Block with Drum Block Fix Tool 1. Rotate the left Block (1) fully to the arrow direction (A: to front) and also press it to the arrow direction (B: to outside). This will remove any gap between Block (1) and the side frame of the machine.
Page 277 2. Loosen the screws (2) (3) in a (approximately) quarter turn to release Block (1). Check that no excessive backlash to sideways appears. 3. Similarly to step 1, rotate the right Block (4) fully to the arrow direction (C: to front) and also press it to the arrow direction (D: to outside).
Page 278 5. On the left side, hook Drum Block Fix Tool (7) on between the pin (8) on the frame and the U- shape opening (9) of Block (1). Hook the rear hook (10) the rim of the U-shape opening (9) and the front hook (11) in the groove of the pin (8).
Page 279 6. With pressing Block (1) down (E), slightly turn Block to the arrow direction (F) and release it to locate Block correctly by restoring spring. 7. Tighten the lower screw (2) and then the upper screw (3) to secure Block (1). WWW.SERVICE-MANUAL.NET 5-152...
Page 280 8. Similarly to step 5, on the right side, hook Drum Block Fix Tool (7) on between the pin (12) on the frame and the U-shape opening (13) of Block (4). NOTE (1) Handle Drum Block Fix Tool with care. Be sure not to damage Drum or any other components when removing/attaching it.
Page 281 9. Similarly to step 6, with pressing Block (4) down (G), slightly turn Block to the arrow direction (H) and release it to locate Block correctly by restoring spring. 10. Tighten the lower screw (5) and then the upper screw (6) to secure Block (4). 11.
Page 282 5. 5. 2. 2 Fixing Block by hand (w/o Drum Block Fix Tool) 1. Rotate the left Block (1) fully to the arrow direction (A: to front) and also press it to the arrow direction (B: to outside). This will remove any gap between Block (1) and the side frame of the machine.
Page 283 3. Put your finger inside the U-shape opening (4) of Block (1). Put the other finger on the pin (5) of the frame. Push the fingers toward each other (C: inside). Note that the entire Block (1) is shifted towards the pin (5) by the finger at the U-shape opening (4).
Page 284 4. Similarly to step 1, rotate the right Block (6) fully to the arrow direction (D: to front) and also press it to the arrow direction (E: to outside). This will remove any gap between Block (6) and the side frame of the machine. With holding Block (6), tighten the screws (7) (8) just enough turn to fix Block (6) temporarily.
Page 285 6. Similarly to step 3, put your finger inside the U-shape opening (9) of Block (6) and put the other finger on the pin (10) of the frame. Push the fingers toward each other (F: inside). Note that the entire Block (6) is shifted towards the pin (10) by the finger at the U-shape opening (9).
Page 286 5. 5. 3 Cleaning of Photoconductive Drum 1. Remove the Photoconductive Drum from the machine making reference to [5. 5. 1 Replacement of the Photoconductive Drum] on the page 5-138. 2. Wipe the surface of Photoconductive Drum with a dry cloth. 3.
Page 287: Replacement Of Belt
5. 5. 4 Replacement of Belt 4 1. Pull up the Lever (1) to open the Engine Unit. 2. Remove 3 screws (2) to remove Cover (3). 3. Remove Belt 4 (4). NOTE Belt 4 is automatically unfastened if only you open the Engine Unit. WWW.SERVICE-MANUAL.NET 5-160...
Page 288 5. 6 LED Head 5. 6. 1 Replacement of the LED Head Unit 1. Pull up the Lever (1) to open the Engine Unit. 2. Remove 2 screws (2) on the front. 3. Remove 4 screws (3) on the side bottom. WWW.SERVICE-MANUAL.NET 5-161...
Page 289 4. Remove 6 screws (4) on the rear. 5. Remove Cover (5) / Cover (6). 6. Close the Engine Unit. 7. Remove 2 pieces of Tray (7). WWW.SERVICE-MANUAL.NET 5-162...
Page 290 8. Remove 2 pieces of 4x6 screw (8) to remove the Cover (9). 9. Disconnect the connector (10), and open the wire saddles (11) to release the harness. NOTE Wind excessive length of the USB Cable with the wire saddles (11) when reassembling. Do not bundle the 2 cables in any of the wire saddles (11) together.
Page 291 11. Remove 4 pieces of 4x6 screw (13) and 2 pieces of washer screw (14). 12. Slide the Scanner Unit (15) fully backward. WWW.SERVICE-MANUAL.NET 5-164...
Page 292 13. There are 2 pieces of Stopper (16) at both sides, which lock the LED Head Frame. Loosen the screw (17) and then slide the Stoppers (16) outside to unlock the LED Head Frame. Lock position Unlock position WWW.SERVICE-MANUAL.NET 5-165...
Page 293 14. Open the LED Head Frame (18). NOTE The Stopper 2 (19) comes out automatically to prevent the LED Head Frame from falling down. Press the Stopper 2 as the right photo if you will close the LED Head Frame. WWW.SERVICE-MANUAL.NET 5-166...
Page 294 15. Remove the 4x6 screw (20) to remove the Fixing Bracket (21) on the right. NOTE You do not have to put back the Fixing Bracket (21) at the time of reassembly, because it is a part required only before the delivery of machine. 16.
Page 295 17. Move the Plate (23) to the right to release the pin (25) of Corona Block. Then remove the Image Corona Unit (26). 18. Disconnect 3 connectors (27). WWW.SERVICE-MANUAL.NET 5-168...
Page 296 19. Remove the screw (28) to remove the Bracket (29). 20. Move the right end of LED Head (30) a little to the front side, and then slide the whole unit to the right. Replace LED Head Unit (30) with the new one. NOTE It is necessary to check and adjust the focus of LED Head after its replacement.
Page 297 5. 6. 2 LED focus adjustment Please adjust the focus of LED Head after the replacement of LED Head. Also adjust it if you have lost the correct focus by some reason. Adjust the focus by the following 3 steps. (1) Check of the Test Pattern Image (2) Positioning of the Aluminium Blocks (3) Focus Adjustment with Spacers...
Page 298 5. 6. 2. 2 Positioning of the Aluminium Blocks There are Aluminium Blocks at both sides of the Drum, which adjust the distance between LED Head and Drum. If the LED focus is not correct, at first it is necessary to place them at the correct positions in the following way.
Page 299 3. Remove 4 screws (3) on the side bottom. 4. Remove 6 screws (4) on the rear. 5. Remove Cover (5) / Cover (6). 6. Close the Engine Unit. WWW.SERVICE-MANUAL.NET 5-172...
Page 300 7. Remove 2 pieces of Tray (7). 8. Remove 2 pieces of 4x6 screw (8) to remove the Cover (9). 9. Disconnect the connector (10), and open the wire saddles (11) to release the harness. NOTE Wind excessive length of the USB Cable with the wire saddles (11) when reassembling.
Page 301 10. Open the Cover (12). 11. Remove 4 pieces of 4x6 screw (13) and 2 pieces of washer screw (14). 12. Slide the Scanner Unit (15) fully backward. WWW.SERVICE-MANUAL.NET 5-174...
Page 302 13. There are 2 pieces of Stopper (16) at both sides, which lock the LED Head Frame. Loosen the screw (17) and then slide the Stoppers (16) outside to unlock the LED Head Frame. Lock position Unlock position WWW.SERVICE-MANUAL.NET 5-175...
Page 303 14. Open the LED Head Frame (18). NOTE The Stopper 2 (19) comes out automatically to prevent the LED Head Frame from falling down. Press the Stopper 2 as the right photo if you will close the LED Head Frame. 15.
Page 304 16. Remove 1 tooth washer screw (21: M4x8), and remove Plate 2 (22) and Pulley Gear (23). NOTE (1) Belt 4 (24) is automatically loosed with Engine Unit open. It will be strained with Engine Unit closed. (2) The tooth washer screw (21) has a tooth burr face washer of which burr face meets the composition surface.
Page 305 17. There are Aluminium Block (25: left) (26: right) and each of them is fixed with 2 screws (27). Left side Right side Do as follows to fix the Aluminium Blocks correctly. a) Always fix the Aluminium Block of the left (25) first and then right (26). b) When you tighten 2 screws (C) (D) to fix each Aluminium Block, always tighten the lower one (C) first and then the upper one (D).
Page 306 18. Rotate the left Block (25) fully to the arrow direction (A: to front) and also press it to the arrow direction (B: to outside). This will remove any gap between Block (25) and the side frame of the machine. With holding Block (25), tighten the screws (28) (29) just enough turn to fix Block (25) temporarily.
Page 307 19. Loosen the screws (28) (29) in a (approximately) quarter turn to release Block (25). Check that no excessive backlash to sideways appears. 20. Similarly to step 18, rotate the right Block (26) fully to the arrow direction (C: to front) and also press it to the arrow direction (D: to outside).
Page 308 22. Fix Blocks with Drum Block Fix Tool (or by hand). Go to step 22-1 for using Drum Block Fix Tool. Go to step 23 for without Drum Block Fix Tool. 22-1. On the left side, hook Drum Block Fix Tool (32) on between the pin (33) on the frame and the U-shape opening (34) of Block (25).
Page 309 22-2. With pressing Block (25) down (E), slightly turn Block to the arrow direction (F) and release it to locate Block correctly by restoring spring. 22-3. Tighten the lower screw (28) and then the upper screw (29) to secure Block (25). WWW.SERVICE-MANUAL.NET 5-182...
Page 310 22-4. Similarly to step 22-2, on the right side, hook Drum Block Fix Tool (32) on between the pin (37) on the frame and the U-shape opening (38) of Block (26). NOTE (1) Handle Drum Block Fix Tool with care. Be sure not to damage Drum or any other components when removing/attaching it.
Page 311 22-5. Similarly to step 22-2, with pressing Block (26) down (G), slightly turn Block to the arrow direction (H) and release it to locate Block correctly by restoring spring. 22-6. Tighten the lower screw (30) and then the upper screw (31) to secure Block (26). 22-7.
Page 312 23. Follow the instruction below to fix Blocks without Drum Block Fix Tool. 23-1. Put your finger inside the U-shape opening (32) of Block (25). Put the other finger on the pin (33) of the frame. Push the fingers toward each other (C: inside). Note that the entire Block (25) is shifted towards the pin (33) by the finger at the U-shape opening (32).
Page 313 23-2. Similarly to step 23-1, put your finger inside the U-shape opening (34) of Block (26) and put the other finger on the pin (35) of the frame. Push the fingers toward each other (D: inside). Note that the entire Block (26) is shifted towards the pin (35) by the finger at the U-shape opening (34).
Page 314 5. 6. 2. 3 Focus Adjustment with Spacers There may be the case that the focus of LED is not correct even if you have placed the Aluminium Blocks at both sides of the Drum Shaft correctly. This is because the height of the LED is mechanically different between left and right by some reason.
Page 315 3. Disconnect the connector (4), and open the wire saddles (5) to release the harness. NOTE Wind excessive length of the USB Cable with the wire saddles (5) when reassembling. Do not bundle the 2 cables in any of the wire saddles (5) together.
Page 316 5. Remove 4 pieces of 4x6 screw (7) and 2 pieces of washer screw (8). 12. Slide the Scanner Unit (9) fully backward. WWW.SERVICE-MANUAL.NET 5-189...
Page 317 7. There are 2 pieces of Stopper (10) at both sides, which lock the LED Head Frame. Loosen the screw (11) and then slide the Stoppers (10) outside to unlock the LED Head Frame. Lock position Unlock position WWW.SERVICE-MANUAL.NET 5-190...
Page 318 8. Open the LED Head Frame (12). NOTE The Stopper 2 (13) comes out automatically to prevent the LED Head Frame from falling down. Press the Stopper 2 as the right photo if you will close the LED Head Frame. WWW.SERVICE-MANUAL.NET 5-191...
Page 319 9. There are Spacers (14) on each Aluminium Block at both sides. The height of the LED Head can be adjusted by adding more Spacer or removing some of them. Remove the screw (15), and remove all Spacers (14) at first. And then adjust the height of LED Head adding or removing the Spacers (14).
Page 320 NOTE (4) It is quite not clear which of “addition” or “removal” of Spacer is effective to solve the focus problem. (Even if the defective image caused by the focus problem looks same, for example, it is fixed by “addition” in some case but in another case it is fixed by “removal”. Only the way to find the best focus is just “trial”.
Page 321 5. 7 Image Corona 5. 7. 1 Removal of the Image Corona Unit 1. Pull up the Lever (1) to open the Engine Unit. 2. Remove 2 screws (2) on the front. 3. Remove 4 screws (3) on the side bottom. WWW.SERVICE-MANUAL.NET 5-194...
Page 322 4. Remove 6 screws (4) on the rear. 5. Remove Cover (5) / Cover (6). 6. Close the Engine Unit. 7. Remove 2 pieces of Tray (7). WWW.SERVICE-MANUAL.NET 5-195...
Page 323 8. Remove 2 pieces of 4x6 screw (8) to remove the Cover (9). 9. Disconnect the connector (10), and open the wire saddles (11) to release the harness. NOTE Wind excessive length of the USB Cable with the wire saddles (11) when reassembling. Do not bundle the 2 cables in any of the wire saddles (11) together.
Page 324 11. Remove 4 pieces of 4x6 screw (13) and 2 pieces of washer screw (14). 12. Slide the Scanner Unit (15) fully backward. WWW.SERVICE-MANUAL.NET 5-197...
Page 325 13. There are 2 pieces of Stopper (16) at both sides, which lock the LED Head Frame. Loosen the screw (17) and then slide the Stoppers (16) outside to unlock the LED Head Frame. Lock position Unlock position WWW.SERVICE-MANUAL.NET 5-198...
Page 326 14. Open the LED Head Frame (18). NOTE The Stopper 2 (19) comes out automatically to prevent the LED Head Frame from falling down. Press the Stopper 2 as the right photo if you will close the LED Head Frame. WWW.SERVICE-MANUAL.NET 5-199...
Page 327 15. Remove the 4x6 screw (20) to remove the Fixing Bracket (21) on the right. NOTE You do not have to put back the Fixing Bracket (21) at the time of reassembly, because it is a part required only before the delivery of machine. 16.
Page 328 17. Move the Plate (23) to the right to release the pin (25) of Corona Block. Then remove the Image Corona Unit (26). WWW.SERVICE-MANUAL.NET 5-201...
Page 329 5. 7. 2 Replacement of the Corona Wire NOTE A periodic replacement for the following parts is recommended. Item Number Remarks of article Corona Wire (1) Assy All of these parts are contained in MC- 960 “Corona Wire Kit” (305JG70030) Spring 2 1.
Page 330 NOTE Check the following when reassembling. (1) The side edge of Block 3 (3) should stop at 0.5mm short of the side face (4) of the corona block for a proper tension. Rotate a hexagon wrench in either direction with pressing down Grid Plate (5). 0.5mm 0.5mm press down...
Page 331 3. Remove the Grid Plate (5). NOTE If Grid Plate is dirty, wash it with the neutral detergent and then with water. Dry it well after washing. 4. Loosen 3 pieces of 3x6 screw (6), and then remove Corona Housing (7) and Plate Electrode (8).
Page 332 5. Remove the Flush Head Screw (9), and remove each Cover (10) and Cover 2 (11). 6. Loosen the screws (12) to lower the Height Adjuster. (It becomes easy to remove the Corona Wire as it is unfastened by this treatment.) WWW.SERVICE-MANUAL.NET 5-205...
Page 333 7. Remove (13) and (14). Spring 2 Corona Wire 1 Assy Replace (13) and (14) with new ones. Spring 2 Corona Wire 1 Assy NOTE (1) Please keep 11mm between Corona Wire (14) and bottom plate of the Corona Unit after the replacement.
Page 334 5. 8 Transfer / Separation Corona 5. 8. 1 Removal of the Transfer / Separation Corona 1. Pull up the Lever (1) to open the Engine Unit. 2. Holding both Corona Blocks (2: white plastic), remove the Transfer / Separation Corona (3) from the machine.
Page 335 5. 8. 2 Replacement of Corona Wires NOTE A periodic replacement for the following parts is recommended. Item Number Remarks of article Corona Wire All of these parts are contained in MC- 960 “Corona Wire Kit” (305JG70030) Wire Spring 1. Remove the Transfer / Separation Corona (1) making reference to [5.
Page 336 3. Remove both Covers 3 (5) (6) pulling their sides outward. WWW.SERVICE-MANUAL.NET 5-209...
Page 337 4. Remove 4 pieces of (7) and (8). Wire Springs Corona Wires Replace (7) and (8) with new ones. Wire Springs Corona Wires NOTE (1) Do not touch the wire part. Pinch the hook part of both ends to handle Corona Wire. (2) Keep 11mm distance (height) between each Corona Wire and bottom plate of the housing.
Page 338 5. 9 Engine Frame 5. 9. 1 Replacement of DC Motor (M4) and Developer Press Sensor (PH4) 1. Open the Cover (1). 2. Remove the 4x6 screws and washers (2) at both sides to make the Bands (3) free. WWW.SERVICE-MANUAL.NET 5-211...
Page 339 3. There are Pins (4) at both sides. Slide them inside to remove the Cover (1). 4. Open the Bypass Feeder (5). 5. Remove 4 pieces of 4x8 screw (6). WWW.SERVICE-MANUAL.NET 5-212...
Page 340 6. Close the Bypass Feeder, and then open the Developer Press Unit (7). 7. Disconnect the connector (8) and remove 3 pieces of screw (9), and remove the DC Motor (10). Replace DC Motor (10) with the new one. WWW.SERVICE-MANUAL.NET 5-213...
Page 341 8. Remove the 4x6 screw (11), release the harness from the Edge Saddle (12), and disconnect the connector (13). 9. Pressing the stoppers (14) with such tool as a screwdriver, remove Developer Press Sensor (15). Replace Developer Press Sensor (15) with the new one. WWW.SERVICE-MANUAL.NET 5-214...
Page 342 5. 9. 2 Replacement of Manual Set Sensor (PH5) & Registration Sensor (PH1) 1. Remove the Developer Unit from the machine making reference to [5. 2. 1 Removal of the Developer Unit] on the page 5-5. 2. Remove 2 pieces of 3x6 screw (1), and then turn over the Bracket 11 (2). WWW.SERVICE-MANUAL.NET 5-215...
Page 343 3. Remove the screw (3) and disconnect the connector (4) to remove each Sensor (5 : Manual Set Sensor or Registration Sensor). Replace Sensor (5) with the new one. WWW.SERVICE-MANUAL.NET 5-216...
Page 344 5. 9. 3 Replacement of Fans (BL5, BL6) 1. Remove the Fuser Unit (1) from the machine making reference to [5. 3. 1 Removal of the Fuser Unit] on the page 5-70. 2. Disconnect the connector (2), remove 2 screws (3), and remove each Fan (4) with the bracket. Remove 2 screws from the bracket and replace Fan(BL5 / BL6) with the new one.
Page 345 5. 9. 4 Replacement of Blowers (BL3, BL4) 1. Remove 2 pieces of 4x6 screw (1) to remove the Cover 10 (2). 2. Open the Cover Assembly (3). 3. Moving the stopper levers (4) to the inside, remove each Duct 5 (5) with Filter 4. WWW.SERVICE-MANUAL.NET 5-218...
Page 346 4. Remove 2 pieces of 4x6 screw (6), and then slide the Duct 6 (7) to the left. 5. Remove 3 pieces of 4x35 screw (8). 6. Remove the Blower (9 : BL3 & BL4) moving as the following photos. WWW.SERVICE-MANUAL.NET 5-219...
Page 347 5. 10 Inner Transport Unit 5. 10. 1 Removal of the Inner Transport Unit 1. Remove the Fuser Unit (1) from the machine making reference to [5. 3. 1 Removal of the Fuser Unit] on the page 5-70. 2. Remove 2 pieces of 4x6 screw (2). 3.
Page 348 5. 10. 2 Replacement of Sensor (PH2) & Belt 1. Remove the Inner Transport Unit (1) from the machine making reference to [5.10. 1 Removal of the Inner Transport Unit] on the page 5-305. 2. Tuck the rim of Belts (2) under the tab of Guide Plate (3) 3.
Page 349 4. Remove 1 screw (6) and the harness (7) to release the sensor bracket (8). Remove Sensor (9) from the bracket (8) and replace Sensor with a new one. 5. Remove Retaining Ring-E (10) to remove Gear (11) and Parallel Pin (12). 6.
Page 350 7. Release Shaft 3 (15: shorter) to remove Shaft 2 (16: longer) from the unit. Remove and replace Belt (17) with new ones. NOTE Be careful of the outside/inside of the Belt (17). The smooth and shiny side of it should be inside. Outside Inside WWW.SERVICE-MANUAL.NET...
Page 351 5. 11 Main Frame 5. 11. 1 Replacement of DC Motors (M1, M2), Belt 8, Belt 9, Belt 7 1. Pull up the Lever (1) to open the Engine Unit. 2. Remove 6 screws (2) to remove Cover (3). WWW.SERVICE-MANUAL.NET 5-224...
Page 352 3. Remove 4 pieces of 4x6 screw (4), loosen 4 pieces of 4x6 screw (5), and then remove the Cover 15 (6). 4. Remove 5 screws (7) to remove Case 5 (8). 5. Disconnect 4 connectors (9). WWW.SERVICE-MANUAL.NET 5-225...
Page 353 6. Loosen the 4x6 screw (10). Move the Pulley 3 (11) toward the arrow mark and secure it to slacken Belt 8 (12). NOTE To adjust the tension of the Belt 8, do as follows. If you do not make the following works, Belt 8 may slip because the tension is not correct.
Page 354 7. Remove 2 screws (14), Grip Ring and Bearing (15) to remove Bracket (13). Replace Belt 8 (12: 90S3M756) with the new one. WWW.SERVICE-MANUAL.NET 5-227...
Page 355 8. Loosen 2 screws (16). Move the Pulley (17) (18) toward the arrow mark and secure them to slacken Belt 9 (19) and Belt 7 (20). NOTE To adjust the tension of the Belt 9 and Belt 7, do as follows. If you do not make the following works, the belts may slip because the tension is not correct.
Page 356 9. Remove 5 screws (22), Grip Ring and Bearing (23) to remove Bracket (21). Remove and replace Belt 9 (19: 90S3M576) and Belt 7 (20: 90S3M699) with new ones. WWW.SERVICE-MANUAL.NET 5-229...
Page 357 10. Remove 7 pieces of 4x10 screw (24) to remove the Plate 6 Assembly (25). NOTE When reassembling, do not bump DC Motor (26) and its PCB on the frame rim. Do not hit here WWW.SERVICE-MANUAL.NET 5-230...
Page 358 11. Remove Set Screws (27) on the side surface to remove each Pulley 4 (28). NOTE The tip of the motor shaft should be aligned with the outside surface of Pulley 4. not sticked out 12. Remove 4 pieces of 4x10 screws (29) to remove DC Motor (30: Main) (31: Fuser). Replace DC Motor (30) (31) with a new one.
Page 359 5. 11. 2 Replacement of Clutch (CL1) 1. Pull up the Lever (1) to open the Engine Unit. 2. Remove 6 screws (2) to remove Cover (3). WWW.SERVICE-MANUAL.NET 5-232...
Page 360 3. Loosen the 4x6 screw (4), move the Pulley 3 (5) toward the arrow mark and secure it to slacken Belt 8 (6). NOTE To adjust the tension of the Belt 8, do as follows. If you do not make the following works, Belt 8 may slip because the tension is not correct.
Page 361 4. Remove 2 screws (8), Grip Ring and Bearing (9) to remove Bracket (7). Remove Belt 8 (6). WWW.SERVICE-MANUAL.NET 5-234...
Page 362 5. Remove the Hex. Cap Screw (10) to remove the Pulley 13 (11). 6. Disconnect the connector (12), and remove the 4x6 screw (13) to remove Bracket Clutch (14), Clutch (15). Replace Clutch (15) with the new one. WWW.SERVICE-MANUAL.NET 5-235...
Page 363 5. 11. 3 Replacement of Blower (BL7) 1. Remove 4 pieces of 4x6 screw (1), loosen 4 pieces of 4x6 screw (2), and then remove the Cover (3). 2. Remove 5 screws (4) to remove Case 5 (5). 3. Disconnect the connector (6), remove 1 screw (7), and then remove the Bracket Blower (8). Remove 3 screws (9) to replace Blower (10) with the new one.
Page 364 5. 11. 4 Replacement of Fan (BL8) 1. Remove 4 pieces of 4x6 screw (1), loosen 4 pieces of 4x6 screw (2), and then remove the Cover (3). 2. Disconnect the connector (4), remove 1 screw (5), and then remove the Fan Bracket (6). Remove 4 screws (7) and 1 connector (8) to replace Fan (9) with a new one.
Page 365 5. 12 Scanner Unit 5. 12. 1 Removal of Scanner Unit 1. Remove 2 pieces of Tray (1). 2. Remove 8 pieces of screws (2). 3. Remove Cover (3). WWW.SERVICE-MANUAL.NET 5-238...
Page 366 4. Remove 3 screws (4). 5. Remove Shield Cover (5). 6. Remove 2 tooth washer screws (6) to remove Cover (7) WWW.SERVICE-MANUAL.NET 5-239...
Page 367 7. Pull up Lever (8) to open the Engine Unit. 8. Remove 5 screws (9). 9. Remove Cover (10). WWW.SERVICE-MANUAL.NET 5-240...
Page 368 10. Open Cover (11). 11. Remove 4 screws (12) to remove Cover (13). 12. Remove 4 screws (14) to remove Cover (15). 13. Loosen 4 screws (16) and remove 4 screws (17) to remove Cover (18). WWW.SERVICE-MANUAL.NET 5-241...
Page 369 14. Disconnect the Scanner USB Cable (19: with the label “SC”) from the upper right USB port of IPS. 15. Open 3 wire saddles (21) to release the Scanner USB Cable (19). 16. On the right side, open 3 wire saddles (22) to release the Scanner USB Cable (19). WWW.SERVICE-MANUAL.NET 5-242...
Page 370 17. Disconnect the connector (23). Open the wire saddles (24) to release the Scanner USB Cable (19). NOTE Wind excessive length of the Scanner USB Cable (19) with the wire saddles (24) when reassembling. Do not bundle the 2 cables in any of the wire saddles (24) together.
Page 371 19. Remove 4 screws (25) which fix the Scanner Unit. (Right side) (Left side) 19. Remove the Scanner Unit (26) from the machine. CAUTION Please carry the Scanner Unit by 2 persons as it is heavy. WWW.SERVICE-MANUAL.NET 5-244...
Page 372 5. 12. 2 Replacement of Belt 1. Remove the Scanner Unit (1) from the machine making reference to [5.12. 1 Removal of the Scanner Unit] on the page 5-238. 2. Pull up the Levers (2) and open Upper Unit. 3. Loosen 1 screw (3) to slide the stopper (4) and remove Spring (5) to remove Belt (6). Replace Belt with a new one.
Page 373 NOTE Belt (5) requires its tensioning when reassembling. (1) Be sure to close Upper Unit prior to tensioning. Not doing so may prevent a proper tensioning. Press down Upper Unit on both sides to close it. Pressing only on one side may result in twisting the frame.
Page 374 5. 12. 3 Replacement of Motor Assy 1. Remove the Scanner Unit (1) from the machine making reference to [5.12. 1 Removal of the Scanner Unit] on the page 5-238. 2. Pull up the Levers (2) and open Upper Unit. 3.
Page 375 NOTE Belt (5) requires its tensioning when reassembling. (1) Be sure to close Upper Unit prior to tensioning. Not doing so may prevent a proper tensioning. Press down Upper Unit on both sides to close it. Pressing only on one side may result in twisting the frame.
Page 376 4. Remove 2 screws (8: M3x6) and 4 screws (9: M3x6 w/ FW) to remove Sheet Guide (10). 5. Disconnect the harness (11) from Motor Assy (12). 6. Remove 2 screws (13) to remove Motor Assembly (12). Replace Motor Assembly with a new one. WWW.SERVICE-MANUAL.NET 5-249...
Page 377 5. 12. 4 Replacement of Feed Roller 1. Remove the Scanner Unit (1) from the machine making reference to [5.12. 1 Removal of the Scanner Unit] on the page 5-238. 2. Pull up the Levers (2) and open Upper Unit. 3.
Page 378 NOTE Belt (5) requires its tensioning when reassembling. (1) Be sure to close Upper Unit prior to tensioning. Not doing so may prevent a proper tensioning. Press down Upper Unit on both sides to close it. Pressing only on one side may result in twisting the frame.
Page 379 4. Remove 2 screws (8: M3x6) and 4 screws (9: M3x6 w/ FW) to remove Sheet Guide (10). 5. Remove 1 screw (11) to remove Stay (12). Open Upper Unit fully. WWW.SERVICE-MANUAL.NET 5-252...
Page 380 6. Remove 7 screws (13). Release the black plastic sheets (14) from the frame to remove Press Roller Assy (15). NOTE When reassembling, make sure that the 3 black plastic sheets on the rear of Press Roller Assy (16) are in position. Do not flip them up. Correct: black sheet in position Wrong: flipping up WWW.SERVICE-MANUAL.NET...
Page 381 7. On the left side, remove Retaining Ring-E (17), Set Screw (18) to remove Pulley (19) (20), Spacer (21), Bearing (22) from each roller shaft. WWW.SERVICE-MANUAL.NET 5-254...
Page 382 8. On the right side, remove Retaining Ring-E (23) to remove Washer (24), Bearing (25) from each roller shaft. WWW.SERVICE-MANUAL.NET 5-255...
Page 383 9. Pressing Press Assys (26) down, slide Feed Roller F (27: front) and Feed Roller R (28: rear) to the motor side and remove it. Replace Feed Roller F / Feed Roller R with a new one. WWW.SERVICE-MANUAL.NET 5-256...
Page 384 NOTE (1) The longer thin end of Feed Rollers should be placed at the left. Left Right (2) Feed Roller F (27) and Feed Roller R (28) are 28: 2 bands not interchangeable. The 2 rollers have different rubber belt pattern.
Page 385 5. 12. 5 Replacement of Pinch Roller Assy 1. Remove the Scanner Unit (1) from the machine making reference to [5.12. 1 Removal of the Scanner Unit] on the page 5-238. 2. Remove Retaining Ring-E (2) from the shaft of Pinch Roller. WWW.SERVICE-MANUAL.NET 5-258...
Page 386 NOTE For replacement of Pinch Rollers beneath (or near) SVC Main BD K, remove Retaining Ring- E for the concerning Pinch Roller (shown below) after removing SVC Main BD K. (1) Remove all the connectors (3) from SVC Main BD K (4). (2) Remove 6 screws (5) to remove SVC Main BD K (4).
Page 387 3. Pull up the Levers (6) and open Upper Unit slightly. Put your hand in between Upper and Lower Unit and hold the Pinch Roller Assy (7) not to fall its Spring (8) inside Upper Unit. Remove Pinch Roller Assy (7) and Spring (8). Replace Pinch Roller Assy with a new one.
Page 388 5. 12. 6 Replacement of CIS NOTE A CIS is divided into several classes according to wavelength variations of their LED. All the 5 pieces of CIS on a certain scanner should be the same class to assure even image quality (brightness, color quality and etc) among image blocks.
Page 389 2. Open the Scanner Upper Unit. On a CIS to be replaced, remove 2 small screws (2) with a sharp screwdriver. 3. Remove all the connectors (3) from SVC Main BD K (3). WWW.SERVICE-MANUAL.NET 5-262...
Page 390 4. Remove 6 screws (5) to Remove SVC Main BD K (4). 5. On all CIS Boards (6), remove 2 harnesses (7) 6. Remove 4 screws (8) and the harness to remove Switch Bracket R / L (9). WWW.SERVICE-MANUAL.NET 5-263...
Page 391 7. Remove 9 screws (10, M3x6) and 2 screws (11, M4x6). 8. Open 4 wire saddles (12) to release the harnesses. WWW.SERVICE-MANUAL.NET 5-264...
Page 392 9. Remove the Base Plate (13). 10. Remove 4 screws (14, M3x4 w/ TW) to remove the concerning CIS Bracket (15). front front NOTE Place CIS Bracket on a soft cloth or anything to avoid damage on the Scan Glass Assy (16). If you remove the Scan Glass Assy just in case, still you should prepare such to avoid damage on the sensor array of the CIS (17).
Page 393 11. Remove 2 screws (18) to release CIS Board (19). Carefully remove the flat cable (20) from CIS. front front NOTE When reassembling, gently insert Flat Cable (20) all the way in the terminal on the CIS. Inserting incorrectly would lead abnormal scan image. FRAGILE.
Page 394 12. Remove 6 screws (21: M3x4 w/ SW) and 2 screws (22: M3x4) disassemble the CIS Unit. - upper bracket (23) - small spacer (24) - CIS (17) - lower bracket with Scan Glass Assy (16) front front 13. Replace CIS with a new one. 14.
Page 395 5. 12. 7 Replacement of Scan Glass Assy Reference Dismounting Scanner Unit is not mandatory to remove Scan Glass Assy. 1. Open the Scanner Upper Unit. Remove 4 screws (1) to remove Scan Glass Assy. WWW.SERVICE-MANUAL.NET 5-268...
Page 396 Chapter 6 Maintenance page 6- 2 6. 1 Recommended Periodic Replacement Parts 6- 3 6. 2 Maintenance Period 6. 2. 1 Cleaning 6- 3 6. 2. 2 Lubrication 6- 4 6. 2. 2. 1 Driving Gears on Machine Frame 6- 4 6.
Page 397: Recommended Periodic Replacement Parts
6. 1 Recommended Periodic Replacement Parts For keeping the machine quality in a satisfactory level, a periodic replacement for the following parts is recommended. A damaged part (even if it looks not) may result in a critical failure. Location Part Name Quantity Remarks Developer Unit...
Page 398: Maintenance
6. 2 Maintenance Please make the following maintenances to keep the machine in a good condition and to get a superior image. 6. 2. 1 Cleaning Unit / Area Maintenance part Maintenance Period Remarks 104k 156k 208k Developer Counter Roller Clean with a cloth impregnated with Unit alcohol.
Page 399 6. 2. 2 Lubrication Please apply an adequate amount of grease to the components shown in the following section. Recommended lubrication term is in every 18,000m. Use silicone grease unless otherwise noted. 6. 2. 2. 1 Driving Gears on Machine Frame Remove Developer Unit and Fuser Unit.
Page 400 6. 2. 2. 2 Developer Unit Remove Developer Unit. Apply conductive grease to the contacting points for Developer/Blade/Toner Supply Rollers on the metal plates (1). Apply grease to Gear Helical 28T (2). 6. 2. 2. 3 Terminal Plates on Machine Frame Open Engine Unit.
Page 401: Service Kit
6. 3 Service Kit The following service kits are assigned taking the serviceability into consideration. Kit Name Contained Parts Quantity Remarks (Part Number) DV-960 Scraper [5.2.2 Replacement of “Developer Maintenance Recommended Periodic Sheet Kit A” Replacement Parts] Sheet 2 (305JG70010) Roller Developer Sheet 3 Sheet 4...
Page 402 6. 4 Service Tool List Here is the table to list special tools for field service. It is recommended to check them through in Parts List and Publication Bulletin for the latest information. Part Name Appearance / Usage Requirement Related Section (Part Number) DEV HANDLE ASSY 5.2.2 Replacement of Recommended...
Page 403: Troubleshooting
Chapter 7 Troubleshooting Page 7- 3 7. 1 Troubleshooting - Printer Errors 7. 1. 1 Countermeasures - Call Operator Errors 7- 3 7. 1. 1. 1 Roll 2 Feeding Jam “Delay” (J-0101) 7- 3 7. 1. 1. 2 Roll 1 Feeding Jam “Delay” (J-0102) 7- 4 7.
Page 404 7. 2. 2.11 Defective fusing 7-29 7. 2. 2.12 Defective image placement, No Leading Edge 7-30 7. 2. 2.13 Jitter 7-30 7. 2. 2.14 Image looks not sharp 7-31 7. 2. 2.15 Uneven image density (vertical) 7-31 7. 2. 2.16 Completely white (No image) 7-32 7.
Page 405 7. 1 Troubleshooting - Printer Errors 7. 1. 1 Countermeasures - Call Operator Errors 7. 1. 1. 1 Roll 2 Feeding Jam “Delay” (J-0101) Reference Delay : Paper arrives the sensor much later than required timing. Stay : Paper exists on the sensor for longer time than required. Early : Paper arrives the sensor much earlier than required timing.
Page 406 7. 1. 1. 2 Roll 1 Feeding Jam “Delay” (J-0102) Cause Checking Checking Result Treatment order Installation of roll Is the roll paper correctly installed to the Install it correctly. paper Roll Deck 2? Roll 1 Set Sensor Check the status of Roll 1 Set Sensor in 1.
Page 407 7. 1. 1. 3 Feeding Jam “Delay” (J-0103) & “Early” (J-0303) Cause Checking Checking Result Treatment order Mis-feed of paper Does the paper mis-fed occur between Remove the mis-fed paper. Roll 1 Set Sensor and Feed Sensor? Feed Sensor Check the status of Feed Sensor in the 1.
Page 408 7. 1. 1. 4 Reg. Jam “Delay” (J-0104), “Stay” (J-0204) “Early” (J-0304), “Remained” (J-1004) Cause Checking Checking Result Treatment order Mis-feed of paper Does the paper mis-fed occur around the Remove the mis-fed paper. Registration Roller? Registration Check the status of Registration Sensor 1.
Page 409 7. 1. 1. 6 Fuser Jam “Delay” (J-0107), “Stay” (J-0207) “Early” (J-0307), “Remained” (J-1007) Cause Checking Checking Result Treatment order Mis-feed of paper Does the paper mis-fed occur around the Remove the mis-fed paper. fuser area? Exit Sensor (PH3) Check the status of Exit Sensor in the 1.
Page 410 7. 1. 1.10 Deck Jam Cause Checking Checking Result Treatment order Mis-feed of paper Does the paper mis-fed occur in the Roll Remove the mis-fed paper. Deck? Installation of roll Is the roll paper correctly installed to the Install it correctly. paper Roll Deck 2? Roll 1 Set Sensor...
Page 411: Manual Set Ng
7. 1. 1.11 Manual Set NG Cause Checking Checking Result Treatment order Mis-feed Have you already set the cut sheet paper Remove the paper. to the Bypass Feeder before you turned on the machine? Manual Set Sensor Check the status of Manual Feed Sensor 1.
Page 412 Cause Checking Checking Result Treatment order Toner Sensor Confirm that the Toner Sensor is not Replace the Toner Sensor. (TLS1) buried in the toner. Replace the PW12420 PCB. Then check the status of Toner Sensor in the Input/Output Mode of the Service Mode.
Page 413 7. 1. 2 Countermeasures - Call Service Errors The followings are the names of Service Call Errors and the conditions that those errors occur. Error Code Error Indication Conditions E-000 Fuser Temperature Rising Error Fuser Temperature does not reach 50 within 120 seconds after turning on.
Page 414 Error Code Error Indication Conditions E-034 Bias Output Error Bias Output Detection Signal (BIAS_LD) continues to be “L” for 1 second or longer when a specified bias is supplied to the corresponding Developer Unit components. E-040 Cutter Error 1. The Cutter Home Sensor Signal (MSCUT_L or MSCUT_R) does not change to “H”...
Page 415 7. 1. 2. 1 Fuser Error (E-000, E-002 & E-004) E-000 : Fuser Temperature Rising Error E-002 : Fuser Low Temperature Error E-004 : Fuser Temperature Abnormal Fall Error Cause Checking Checking Result Treatment order Error clearance Have you cleared the fuser error in the Wait until the Fuser Unit is Error Clear Mode? enough cooled down.
Page 416 Cause Checking Checking Result Treatment order Solid State Relay Select the Device Operation Mode, and Replace the Solid State (SSR1) then change the signal of the following Relay signals to “H”. Replace the PW12420 PCB. Device Code : 22 (Fuser Relay) 21 (Fuser Lamp 1) Then check the voltage between J105-1 and J105-2.
Page 417 7. 1. 2. 3 Fuser Error (E-003) Cause Checking Checking Result Treatment order Error clearance Have you cleared the fuser error in the Wait until the Fuser Unit is Error Clear Mode? enough cooled down. Then select the Error Clear Mode and clear the concerning error.
Page 418 7. 1. 2. 5 Fuser Motor Error (E-011) Cause Checking Checking Result Treatment order Wires Is the wire between Fuser Motor and Connect it properly. PW12420 PCB connected properly? DC Power Supply Confirm that the machine is turned on, Replace the DC Power (DCP1) and then check the voltage of the orange Supply if there is no problem...
Page 419 7. 1. 2. 7 Counter Error (E-020) Cause Checking Checking Treatment order Wires Is the wire between Counter and Connect it properly. PW12420 PCB connected properly? DC Power Supply Confirm that the machine is turned on, Replace the DC Power (DCP1) and then check the voltage of the orange Supply if there is no problem...
Page 420 7. 1. 2. 9 Bias Output Error (E-034) Cause Checking Checking Treatment order Wires Are wires among Developer Unit, HV Connect them properly. Power Supply PCB and PW12420 PCB connected properly? Developer Unit Is the toner spill out from the Developer Clean each Corona Wire, Unit? Grid Plate and housing.
Page 421 7. 1. 2. 11 FPGA Error (E-050) Cause Checking Checking Result Treatment order PW12420 PCB Can you fix the problem if you replace the PW12420 PCB? 7. 1. 2. 12 Developer Error (E-070) Cause Checking Checking Result Treatment order Wires Is the wire between Developer Unit and Connect it properly.
Page 422: Troubleshooting - Image Quality
7. 2 Troubleshooting - Image Quality 7. 2. 1 Basic Image Adjustment The followings are the settings specified to the image creation components. When a defective image is printed out, please check whether or not these settings are satisfied for the beginning.
Page 423 7. 2. 2 Countermeasures - Image Quality 7. 2. 2. 1 Halftone is too light Check the following matters with the Test Pattern No.1 S(0) and No.3 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Try to readjust each image creation component according to [7.2.1 Basic Image Adjustment].
Page 424 Cause Checking Checking Result Treatment order Installation of Is the driving gear on the left of the Check whether or not the Developer Unit Developer Unit surely fitted to the Cam of Developer Press driving mechanism on machine side? Unit surely presses the Developer Unit.
Page 425 7. 2. 2. 2 Halftone and solid black are too light Check the following matters with the Test Pattern No.1 S(0) and No.3 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Try to readjust each image creation component according to [7.2.1 Basic Image Adjustment].
Page 426 7. 2. 2. 3 The whole image is extremely light Check the following matters with the Test Pattern No.1 S(0) and No.3 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Try to readjust each image creation component according to [7.2.1 Basic Image Adjustment].
Page 427 7. 2. 2. 4 Density is uneven Check the following matters with the Test Pattern No.1 S(0) and No.3 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Image Corona Is the Image Corona dirty? Clean the Image Corona, or replace the Corona Wire.
Page 428 7. 2. 2. 6 Foggy image or blurred black wide line (vertical) Check the following matters with the Test Pattern No.1 S(0) and No.4 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Light from the Is any light from the outside thrown onto Install the outer cover outside...
Page 429 7. 2. 2. 8 White line (Vertical) Check the following matters with the Test Pattern No.1 S(0) and No.7 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Image Corona Is there something like filament on the Remove it.
Page 430 7. 2. 2. 9 Void of image Check the following matters with the Test Pattern No.1 S(0) and No.7 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Print out the Test Patter No.7 (halftone). Go to the step 2. Can you find void of image on the print? Paper Can you fix the problem if you use a...
Page 431 7. 2. 2.11 Defective fusing Check the following matters with the Test Pattern No.1 S(0) and No.3 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Fuser Unit Is the Fuser Roller properly heated up Refer to [7. 1. 2. 1 Fuser after turning on the machine? Error (E-001, E-002 &...
Page 432 7. 2. 2.12 Defective image placement, No Leading Edge Correct leading margin is 5mm (+/-2mm). Check the following matters with the Test Pattern No.1 S(0) and No.7 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Setting of Leading Is the Leading Registration or Leading Adjust it properly.
Page 433 7. 2. 2.14 Image looks not sharp Check the following matters with the Test Pattern No.1 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Dirt of the LED Is the LED Head dirty? Clean it. Head Installation of LED Remove the LED Head, and then re-...
Page 434 7. 2. 2.16 Completely white (No image) Check the following matters with the Test Pattern No.1 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Developer Press Is the Developer Unit correctly pressed Check the Developer Press Unit to the Drum? Unit.
Page 435 7. 2. 2.18 Crease of paper Check the following matters with the Test Pattern No.1 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Make a continuous printing. Go to the following “8”. Can you find the crease on the 2nd or later prints? Paper Is the type of paper selected on the UI...
Page 436 7. 2. 2.19 Double Image Check the following matters with the Test Pattern No.1 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Paper Is the type of paper selected on the UI Select the correct paper type same with that of actually installed on the UI.
Page 437 7. 2. 2.20 Dirt on the print (Offset) Check the following matters with the Test Pattern No.2 S(0). If necessary use other Test Patterns. Cause Checking Checking Result Treatment order Paper Is the type of paper selected on the UI Select the correct paper type same with that of actually installed on the UI.
Page 438 Fuser Motor 4th Decrease the 4th Speed in another 1 Increase the 4th Speed in 3 Speed (slower). to restore the original (cont.) setting. Does this fix image void problem? Go to step 8. Fuser Motor 3rd Decrease Fuser Motor 3rd Speed that Speed corresponds to the media width/type in Go back to step 5.
Page 439 Image Void Check Is there any image void after 2x Image void remains, or has standard length? just come after step 4; Go to step 6. Note that step 4 would result in image void there. Fuser Motor 4th Decrease Fuser Motor 4th Speed that Speed corresponds to the media width/type in Decrease the 4th Speed in...
Page 440 7. 3 Troubleshooting - Scanner Defects 7. 3. 1 Countermeasures - Scanner operation 7. 3. 1. 1 Original can not be set (Scanner does not transport) Cause Checking Checking Result Treatment order Sensor Is the original detected? 1. Tap the UI screen to (Is it shown on the UI?) cancel the sleep mode.
Page 441 7. 3. 1. 4 Original is mis-fed Cause Checking Checking Result Treatment order Foreign substance Is there any foreign substance under Remove it. the Upper Unit? 7. 3. 1. 5 Motor rotates endlessly at the time of turning on Cause Checking Checking Result...
Page 442: Vertical Black Lines
7. 3. 2 Countermeasures – Scan Image Quality 7. 3. 2. 1 Completely black Cause Checking Checking Result Treatment order Calibration Can you fix the problem if you make Shading (Calibration)? (Refer to [8.13.4.1 Shading].) Cable of CIS Is the cable of each CIS connected Connect it properly, or properly? replace the cable if it is...
Page 443 7. 3. 2. 4 Some image is lost at the boundary of Image Blocks Cause Checking Checking Result Treatment order Calibration Can you fix the problem if you make Position? (Refer to [8.13.4.3 Position].) 7. 3. 2. 5 Vertical image gap between Image Blocks Cause Checking Checking...
Page 444: Touch Screen Calibration
7. 4 Touch Screen Calibration If the cursor position in the screen does not correctly match the tapped position on the panel, the touch screen should be calibrated so that the cursor is located directly underneath your finger or a stylus.
Page 445 3. On-screen Keypad appears. Input “8495107” and press [Enter]. 4. Service Configuration screen is displayed. Press [OK]. 5. Make sure that a wrench symbol is indicated at the upper right of the screen. Press [Reset] to close UI operation window. WWW.SERVICE-MANUAL.NET 7-43...
Page 446 6. Tap Diagnostics folder twice as a double-click. Run the shortcut “TouchScreen Configure Utility” for touch screen calibration. WWW.SERVICE-MANUAL.NET 7-44...
Page 447 7. Select [Tools] tab. 8. Press [Draw Test] to check that the touch screen correctly detects a tapped position. NOTE Using a stylus is recommended for easy and accurate touch screen calibration. Do not use any sharp instrument. 9. Test screen will appear. WWW.SERVICE-MANUAL.NET 7-45...
Page 448 10. Tap a certain point and check the cursor appears directly underneath a stylus. For example, suppose you tap the point shown the next figure. Tap this cross The cursor will appear just underneath the tapped point in a correct condition (calibration is not necessary).
Page 449 11. Tap [Quit] to close Test screen. 12. Press [4 Points Calibration]. 13. On Calibration screen, a blinking X symbol on the bottom left can be seen. Press the X until it stops blinking with a beep. NOTE Press the X symbol for several seconds before the progress bar at the bottom reaches the end.
Page 450 14. The X disappears and the next one will come in the following order: bottom right, top right, top left. Perform the same way for the other 3 points. 15. When all the 4 points are pressed successfully, Calibration screen disappears and the following dialog appears.
Page 451 17. Run the shortcut “Restart GUI” for GUI operation. WWW.SERVICE-MANUAL.NET 7-49...
Page 452 Chapter 8 Service Mode / Utility 8- 1 8. 1 General Information of Service Software 8- 2 8. 2 IPS Service Software Overview 8. 2. 1 Launching IPS Service Software 8- 4 8. 2. 2 Closing IPS Service Software 8- 7 8.
Page 453 8. 6. 3.24 Toner Supply Motor ON Time (No.051) 8-72 8. 6. 3.25 Dot Enhancement Level (Dither) (No.052) 8-73 8. 6. 3.26 Feed Clutch (CL3) OFF time applied to long print (No.053 & 054) 8-74 8. 6. 3.27 Metric or Inch (No.055) 8-75 8.
Page 454 8. 6. 3.59 Compensation of Fuser Motor Speed for roll paper (Film / A0, 36” & 34”) (No.190 to 195, 718, 719) 8-102 8. 6. 3.60 Compensation of Fuser Motor Speed for roll paper (Special plain paper / A0, 36 & 34”) (No.196 to 201, 720, 721) 8-103 8.
Page 455 8. 6. 3.90 Compensation of Fuser Motor Speed for cut sheet paper (Plain paper / 30”) (No.472 to 477) 8-131 8. 6. 3.91 Compensation of Fuser Motor Speed for cut sheet paper (Tracing paper / 30”) (No.478 to 483) 8-132 8.
Page 456 8-159 8. 7 Running Mode (Factory Use Only) 8-159 8. 8 Jam/Error Mask Mode 8. 8. 1 Mask List 8-162 8. 8. 2 Masking Jam 8-163 8. 8. 3 Masking Error 8-166 8-169 8. 9 Test Print Mode 8. 9. 1 Making Test Print 8-171 8.
Page 457 8. 1 General Information of Service Mode The system is equipped with advanced functions for field service to easily achieve its best performance. Service Mode contains the following categories. - Signal Status Mode - Information Mode - Operation Check Mode - Adjustment Mode - Running Mode - Jam/Error Mask Mode...
Page 458 8. 2 IPS Service Software Overview IPS Service Software is an integrated utility application that provides intuitive operability by using Touch Screen. IPS Service Software is included in the controller and operates as an interface for monitoring, checking and setting configuration for field service. Canceling the UI program (controlling user operation such as Copy screen) allows Touch Screen to be free to use Desktop on the controller’s operating system.
Page 459 IPS Service Software Tree Diagram of screen menu hierarchy Login screen Servic e Mode Home (Signal Status Mode) Signal Status Monitor screen (Information Mode) Information List screen Data Monitor Jam History Error History (Operation Check Mode) Operation Check screen (Adjustment Mode) Adjustment Menu screen Setting Configuration Setting Backup/Restore...
Page 460 8. 2. 1 Launching IPS Service Software 1. Press “? - Help” on Home screen. 2. Press [Service]. WWW.SERVICE-MANUAL.NET...
Page 461 3. On-screen Keypad appears. Input “8495107” and press [Enter]. 4. Service Configuration screen will appear. 5. Use the arrow keys to open [5/6 IPS Setup]. Press [Launch] in “IPS Service Software”. WWW.SERVICE-MANUAL.NET...
Page 462 6. Press [Yes]. 7. Press [Login] to log in Service Mode. WWW.SERVICE-MANUAL.NET...
Page 463 8. 2. 2 Closing IPS Service Software 1. Return to Service Mode Home. Press [Logout]. 2. In Login screen, press [Close]. Reference Closing “IPS Service Software” automatically invoke UI Home screen to be ready for user operation. WWW.SERVICE-MANUAL.NET...
Page 464: Login Screen
8. 2. 3 Log In screen Name Function Login Log in Service Mode Serial Port Configures Communication Port Se ttings between the cont roller Setting and DC Controller PCB It is not necessary to use this button in normal condition. Close Press here to close IPS Service Software.
Page 465 8. 2. 4 Service Mode Home Name Function Mode Select Press one of Mode Category buttons that you want to enter. Signal Status Input / Output signal monitor Information Analog data status monitor Operation Check Electric device check Adjustment Printer settings Running not available Jam/Error Mask...
Page 466 8. 3 Signal Status Mode It is possible to monitor the status of any device signal input to / output from DC Controller PCB with making prints. For information about Signal Codes, Signal Names and their contents, see [8.3.2 Input / Output Signal List].
Page 467 8. 3. 1 Monitoring Signal Status 1. Press [Device Status] in Service Mode Home. Signal Code Group screen appears. WWW.SERVICE-MANUAL.NET 8-11...
Page 468 2. Press one Code Group button that contains the signal code that you want to monitor. Signal Status Monitor screen appears. Reference For Signal Name/Code, see [8.3.2 Input / Output Signal List]. WWW.SERVICE-MANUAL.NET 8-12...
Page 469 3. Specify one signal item that you want to monitor from Signal Name menu. 4. The current status of the device you have chosen is displayed in Status Monitor. WWW.SERVICE-MANUAL.NET 8-13...
Page 470 8. 3. 2 Input / Output Signal List Symbol IC Port Connector Signal Name Input / Status Signal Output Code IC3-P20 J205-17 Input Switch 1 Input L : ON IC3-P21 J205-18 Input Switch 2 Input L : ON IC3-P22 J205-19 Input Switch 3 Input L : ON...
Page 471 Signal Symbol IC Port Connector Signal Name Input / Status Code Output AC_LD IC3-P86 J203-19 Separation Corona Output Input Detection BIAS_LD IC3-P87 J203-20 Developer Bias Output Input Detection DA CLOCK IC3-P70 DA Conversion Clock DA DI1 IC3-P71 DA Enable 1 DA BS1 IC3-P72 DA Data 1...
Page 472: Information Mode
8. 4 Information Mode It is possible to monitor the analog voltage input sent by devices (such as Thermistor) to DC Controller PCB. It is also possible to monitor the current Fuser temperature which is calculated from the input voltage. Information Mode includes the list of the latest 100 jam / service call error records.
Page 473 Monitor screen Name Function Code Data Code 00 to 32 Item Number Explains the contents of the listed items Current Displays the current An alog Voltage and its calculated value for Information the items to be monitored Introduction Returns to Information Home screen For information about items to be monitored, see [8.4.2 List of Analog Data Monitor].
Page 474 Jam History screen Name Function Jam Information Displays the latest 100 jam records Code Displays Jam Code “J-****” Count Displays the counter value that the concerning jam occurred Export Saves the records as a file Introduction Returns to Information Home screen WWW.SERVICE-MANUAL.NET 8-18...
Page 475 Error History screen Name Function Error Information Displays the latest 100 service call error records Code Displays Jam Code “E-****” Count Displays the counter value that the concerning error occurred Export Saves the records as a file Introduction Returns to Information Home screen WWW.SERVICE-MANUAL.NET 8-19...
Page 476 8. 4. 1 Monitoring Analog Data 1. Press [Information] in Service Mode Home. Information Home screen appears. WWW.SERVICE-MANUAL.NET 8-20...
Page 477 2. To monitor any available Analog Data value, open [No.00 - 32] tab to display Monitor screen. WWW.SERVICE-MANUAL.NET 8-21...
Page 478 8. 4. 2 List of Analog Data Monitor Data Item Unit Remarks Contents Code Fuser Temp 1 Centigrade Calculated Value temperature detected by the thermistor on the center of the Fuser Unit Fuser Temp 2 Centigrade Calculated Value temperature detected by the thermistor on the right of the Fuser Unit (Reserved) Machine Temp...
Page 479 8. 4. 3 Browsing Jam History To browse the machine’s jam history, open [No.33] tab to display Jam History screen. [Export] creates “jaminfo.dat” that contains the currently recorded Jam History. Reference To clear the entire jam history record, see [8.11.1 Clearing Fuser Error, Jam/Error History]. WWW.SERVICE-MANUAL.NET 8-23...
Page 480 8. 4. 4 Browsing Error History To browse the machine’s service call error history, open [No.34] tab to display Error History screen. [Export] creates “errinfo.dat” that contains the currently recorded Error History. Reference To clear the entire service call error history record, see [8.11.1 Clearing Fuser Error, Jam/Error History].
Page 481 8. 5 Operation Check Mode It is possible to operate several electrical components independently, such as motor, clutch, and fans. Operation Check screen Name Function Signal Code / Displays Signal Code/Name in drop-down menu Name Specify one item that you want to check. Signal Status Displays the current status of the selected signal Start...
Page 482 8. 5. 1 Checking Device Operation 1. Press [Operation Check] in Service Mode Home. Operation Check screen appears. WWW.SERVICE-MANUAL.NET 8-26...
Page 483 2. Specify one signal item that you want to monitor from Signal Code/Name menu. 3. The current status of the device you have chosen is displayed in Signal Status field. Press [Enter] to operate / stop the device alone alternately. WWW.SERVICE-MANUAL.NET 8-27...
Page 484: Device List
8. 5. 2 Device List Signal Signal Name Target item Code MAIN-TRG Main Motor FMTR-TRG Fuser Motor FMTR-REV Fuser Motor (reversal rotation) PRESS-M Developer Press Motor TONER-M Toner Supply Motor Reserved R1FD-CL Roll 1 Feed Clutch R1BK-CL Roll 1 Back Clutch R2FD-CL Roll 2 Feed Clutch R2BK-CL...
Page 485: Adjustment Mode
8. 6 Adjustment Mode It is possible to configure fundamental settings on the printer. Every setting item has the corresponding Sub Mode Number. Adjustment Menu screen Name Function Press one Code Group button that contains the signal code that Sub Mode Number Group Button you want to configure.
Page 486 Setting Configuration screen Name Function Signal Name Displays Signal Code/Name in drop-down menu Specify one item that you want to configure. Preset Displays the current value of the selected item Modify Displays an input value by using On-screen Keypad Range Value An input value must be set within this range.
Page 487 8. 6. 1 Changing Setting Value 1. Press [Adjustment] in Service Mode Home. Adjustment Menu screen appears. WWW.SERVICE-MANUAL.NET 8-31...
Page 488 2. Press one Code Group button that contains the signal code that you want to configure. Setting Configuration screen appears. Reference For correspondence between Signal Name/Code and Code Group button, see [8.6.2 Setting Item List]. WWW.SERVICE-MANUAL.NET 8-32...
Page 489 3. Specify one signal item that you want to configure from Signal Name menu. 4. The current value and available setting range of the item you have chosen are displayed. WWW.SERVICE-MANUAL.NET 8-33...
Page 490 5. To change a setting value, input a desired value with On-screen Keypad. The value will be displayed in “Modify” area. The setting item you have chosen is in hexadecimal, press [Fn] to input alphabetic characters A to F. WWW.SERVICE-MANUAL.NET 8-34...
Page 491 6. Press [Enter] to apply the new value to the printer. The value in “preset” area will be changed to the new value. WWW.SERVICE-MANUAL.NET 8-35...
Page 492: Setting Item List
8. 6. 2 Setting Item List NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Leading Registration (Roll paper) 1 to 40 Leading Registration (Cut sheet paper) 1 to 40 Trailing Margin (Roll paper) 1 to 40 Trailing Margin (Cut sheet paper)
Page 493 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Recognition of Paper Tray 0 to 1 Counter Value 0 to 5 Maximum Length 0 to 1 Stacking Device Setting 0 to 1 Operation of Fuser Roller 0 to 1...
Page 494 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 1st Speed (Roll) 0.04mm/s 0 to 80 (Special Media / Tracing / A3, 12” & 11”) Switch Timing to Fuser Motor 1st Speed (Roll) 0.5 seconds 0 to 300 (Special Media / Tracing / A3, 12”...
Page 495 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 1st Speed (Roll) 0.04mm/s 0 to 80 (Special Media / Plain Paper / A2, 18” & 17”) Switch Timing to Fuser Motor 1st Speed (Roll) 0.5 seconds 0 to 300...
Page 496 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 1st Speed (Roll) 0.04mm/s 0 to 80 (Film / A1, 24” & 22”) Switch Timing to Fuser Motor 1st Speed (Roll) 0.5 seconds 0 to 300 (Film / A1, 24”...
Page 497 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 1st Speed (Roll) 0.04mm/s 0 to 80 (Tracing / A0, 36” & 34”) Switch Timing to Fuser Motor 1st Speed (Roll) 0.5 seconds 0 to 300 (Tracing / A0, 36”...
Page 498 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Main Motor Speed (Plain paper) 0 to 80 Main Motor Speed (Tracing paper) 0 to 80 Main Motor Speed (Film) 0 to 80 Main Motor Speed (Special plain paper) 0 to 80...
Page 499 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 1st Speed (Cut sheet) 0.04mm/s 0 to 80 (Special Media / Tracing / A3, A2, 12”, 11”, 18” & 17”) Switch Timing to Fuser Motor 1st Speed (Cut sheet) 0.5 seconds 0 to 300...
Page 500 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 3rd Speed (Cut sheet) 0.04mm/s 0 to 80 (Special Media / Plain Paper / A1, 24” & 22”) Switch Timing to Fuser Motor 3rd Speed (Cut sheet) 0.5 seconds 0 to 300...
Page 501 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Switch Timing to Fuser Motor 1st Speed (Cut sheet) 0.5 seconds 0 to 300 (Special Media / Plain Paper / A0, 36” & 34”) Fuser Motor 2nd Speed (Cut sheet) 0.04mm/s 0 to 80...
Page 502 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 3rd Speed (Roll) 0.04mm/s 0 to 80 (Film / 30”) Switch Timing to Fuser Motor 3rd Speed (Roll) 0.5 seconds 0 to 300 (Film / 30”)
Page 503 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 2nd Speed (Roll) (Cut sheet) 0.04mm/s 0 to 80 (Film / 30”) Switch Timing to Fuser Motor 2nd Speed (Cut sheet) 0.5 seconds 0 to 300 (Film / 30”)
Page 504 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Judgement Value for Additional Cut Length for Non-standard 1 to 20 Size Prints (36”/ 34”/ 30”/ A0 / B1) Judgement Value for Additional Cut Length for Non-standard 1 to 20 Size Prints (24”/ 20”/ A1)
Page 505 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Regulation Bias Increment forAuto Adjustment Level 2 and 3 0.5V 0 to 200 Total Increment of Regulation Bias Adjustment 0.5V 0 to 800 Density Compensation On/Off...
Page 506 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 4th Speed (Roll) 0.04mm/s 0 to 80 (Special Media / Plain Paper / A2, 18” & 17”) Switch Timing to Fuser Motor 4th Speed (Roll) 0.5 seconds 0 to 300...
Page 507 NOTE: All items grayed are not generally for field technician use Item Setting Item Unit Default Setting Value range / AS Fuser Motor 4th Speed (Roll) 0.04mm/s 0 to 80 (Special Media / Plain Paper / 30”) Switch Timing to Fuser Motor 4th Speed (Roll) 0.5 seconds 0 to 300 (Special Media / Plain Paper / 30”)
Page 508 8. 6. 3 Setting Item Explanation Item No. starts with “4”. For example, IPS Service Software shows 4000, this section shows “No.000”. 8. 6. 3. 1 Leading Registration (No. 000 & 001) It is possible to specify where to start printing the image at the leading edge of the media. If you increase the setting value by “+1 “, the head of image is shifted 1mm downward toward the trailing edge As a result the leading margin becomes larger.
Page 509 8. 6. 3. 3 Side Margin (Left & Right) (No. 004) It is possible to adjust the amount of side margin. (Both left and right) Each side margin becomes 1mm wider if you increase the setting value. (As a result the width of print image becomes 2mm narrower.) Default value Setting range Step of increment...
Page 510 8. 6. 3. 4 Side Registration (No. 005 to 007) It is possible to specify where to start printing the image at the side edge of the media. If you increase the setting value by “+1 “, image is shifted 0.1mm to the right. Item No.
Page 511 8. 6. 3. 5 LED Strobe Time for Main Pixel of each Block (No.008 to 010) It is possible to make the whole image of each Image Block (A, B and C) darker or lighter independently by changing the LED Strobe Time for the Main Pixels. As a result an even image density can be accomplished among 3 Image Blocks.
Page 512 NOTE (1) The LED Strobe Times specified in these 008, 009 and 010 are directly applied to the Test Print. If the setting values are 7 (for 008), 8 (for 009) and 9 (for 010), for example, the actual LED Strobe Times are also 7 (for block A), 8 (for block B) and 9 (for block C). In case of Test Print 008: 7 microseconds 009: 8 microseconds...
Page 513 8. 6. 3. 6 LED Strobe Time for IST (Supplemental Pixel) of each Block (No.011 to 013) If such image as a diagonal line looks too weak, you can make it clearer by changing the LED Strobe Time for the Supplemental Pixels. The adjustment is available for each Image Block independently.
Page 514 Reference Normally the TASKalfa 4820w takes 600 times of image exposure per inch for the vertical direction as its resolution is 600DPI. Pixels created by this normal timing are called [Main Pixel]. When a specific image pattern (like a diagonal line) is printed, however, the TASKalfa 4820w will make additional image exposure between vertically neighboring 2 Main Pixels.
Page 515 8. 6. 3. 7 Vertical Alignment of Pixels between Image Blocks (No.014 & 015) It is possible to align the pixels between Image Blocks if there is a gap of pixels. The Image Block B is the standard, and both the Image Blocks A and C can be shifted vertically. If you increase the setting value by “+1”, the whole pixels of the concerning Image Block is shifted “1 line (pixel)”...
Page 516 8. 6. 3. 8 Cut Length 1 (length information provided) (No.016) It is possible to make the print length longer or shorter. This setting is applied when the print command (plot & copy) is provided with the length information. (this is command used on all standard pages printed from the IPS) If you increase the setting value by “+1”, the print length becomes 1mm longer.
Page 517 8. 6. 3.10 Cut Length 3 (Compensation of the length of a long print) (No.018) When you make a long print, the actual print length may become shorter than expected because the paper is likely to shrink. It is possible in this mode to compensate the print length manually. The length of long print is not compensated directly, but it is indirectly compensated by correcting the length of A1 print.
Page 518 2. Make an A1 (841mm long) or 34” long print. Measure the actual length of this A1 or 34” print to know how long millimeter it is shorter than expected. (Example: Print out is 838mm, so it is 3mm shorter than expected.) Expected length Actual length A1 or 34”...
Page 519 8. 6. 3.11 Leading Margin (No. 019) It is possible to adjust the length of the leading margin. An image portion that corresponds to the given length of the leading margin is not printed. The length of the leading margin becomes 0.1mm longer if you Increase the setting value by “+1 “. Changing the value to “0”...
Page 520 8. 6. 3.12 Cut Length 4 (Individual Compensation for Roll 2) (No.020) It is possible to compensate the print length of Roll 2 individually. This setting would be used if a different cut length is provided to Roll 1 and Roll 2. Measure the length gap between a piece of A1 size sheet from each Roll 1 and 2.
Page 521 8. 6. 3.13 Developer Bias (No.022 to 027) It is possible to make the print density darker or lighter by adjusting the Developer Bias (Negative Developer Roller Bias). The print density becomes lighter if you increase the setting value. Item No. Setting Item Default value Setting...
Page 522 8. 6. 3.15 Transfer Voltage (No.029 to 034) It is possible to adjust the analog voltage outputted to the Transfer Corona during the print cycle. Item No. Setting Item Default value Setting Step of range increment EUR/ASIA Transfer Corona Analog Voltage (Plain paper) 0 to 4FF Transfer Corona Analog Voltage (Tracing paper) 0 to 4FF...
Page 523 8. 6. 3.17 Transfer Corona ON Timing (No.037) It is possible to adjust the timing that the Transfer Corona starts discharging during the print cycle. If you increase the setting value by “+1”, the timing to start discharging is 1mm delayed. Default value Setting range Step of increment...
Page 524 8. 6. 3.18 Transfer Corona OFF Timing (No.038) It is possible to adjust the timing that the Transfer Corona stops discharging during the print cycle. If you increase the setting value by “+1”, the timing to stop discharging is 1mm delayed. Default value Setting range Step of increment...
Page 525 8. 6. 3.19 Print - Fuser Temperature Center (No.039 to 044) It is possible to adjust the center part of Fuser Temperature in a print cycle. You can specify the temperature for each type of media separately. The Fuser Temperature becomes 1 degree higher if you increase the setting value by “+1”. Item No.
Page 526 8. 6. 3.20 Fuser Temperature to start idling (No.045) It is possible to decide the temperature to start idling. When the Fuser Temperature reaches the value specified in this No.045 during the warming up, the Fuser Motor starts rotating to drive the Fuser Roller (idling). Default value Setting range Step of increment...
Page 527 8. 6. 3.22 Fuser Temperature Control Range (No.048 & 049) It is possible to specify the control range of temperature of Fuser Roller. If you specify some setting value “X” on these No.048 and 049, for example, you can decide the highest limit and the lowest one of the control range of temperature.
Page 528 8. 6. 3.23 Reaction Time of Toner Supply Motor (No.050) It is possible to change the reaction time of Toner Supply Motor. “Reaction time” is the time taken until the Toner Supply Motor starts working since “Toner Low” has been detected. The reaction time becomes 1 second longer if you increase the setting value by “+1”.
Page 529 8. 6. 3.25 Dot Enhancement Level (Dither) (No.052) It is possible to validate the Dot Enhancement function which makes an isolated dot look clearer. An isolated dot image is more emphasized if you increase the setting value. Setting value Contents Emphasized (Default in USA, EUR &...
Page 530 8. 6. 3.26 Feed Clutch OFF time (No.053, 054) The Feed Clutch turns OFF for a very short period whenever the machine transports the paper 2 meters long, so as to remove the paper slack in a long printing. It is possible to specify how long period the Feed Clutch continues to be OFF. Item No.
Page 531 8. 6. 3.27 Metric or Inch (No.055) It is possible to decide the base format of the print. Setting value Contents NOTE Metric (Default in EUR & ASIA) No.055 is effective only to the size format selection available in Inch (Default in USA) the UI screen.
Page 532 Twice as long as each standard size Film Standard sizes 8. 6. 3.33 Stacking Device setting (No.061) It is possible to make the TASKalfa 4820w recognize the optional device (stacker or folder) if connected. Setting value Contents Optional device is not connected.
Page 533 8. 6. 3.35 Cut Length 5 & 6 (Length Compensation for Tracing Paper / Film)(No.063, 064) It is possible to compensate the print length for the tracing paper and film. If you increase the setting value by “+1”, the length of the print becomes longer. Item No.
Page 534 8. 6. 3.36 Drum Reverse Time (No.065) It is possible to change the period for the Drum reverse rotation. Developer Roller is strongly pressed to the Drum and that may cause an indentation on Developer Roller’s surface. The indentation may result in defective imaging. The Drum makes a reverse rotation in a given period twice after finishing a job.
Page 535 8. 6. 3.38 Operation of Separation Lamp (No.067) There may be the case that some type of printing paper has a difficulty in paper separation. In this case it is possible to assist paper separation by lighting the Separation Lamp. It is possible in this No.067 to decide to which type of paper the Separation Lamp should light.
Page 536 8. 6. 3.39 Compensation of Fuser Motor Speed for roll paper (Plain paper / A3, 12” & 11”) (No.070 to 075, 678, 679) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd, 4th Speed.
Page 537 Reference “Paper creasing” or “image void” on a long print may be removed by Fuser Motor Speed compensation. Long Print without Fuser Motor Speed compensation Leading edge Image Void Paper Creasing Fuser Motor Speed, Fuser Motor 1/2/3/4 Speed correspond to the area shown as follows. To remove “paper creasing”...
Page 538 This page explains Fuser Motor Speed Compensation on A3/12”/11” width for example. You can specify the Fuser Motor 1st Speed, 2nd, 3rd and 4th in each Item No.070, 072, 074, 678. If you increase the setting value by “+1”, each Fuser Motor Speed becomes 0.04mm/second faster. (The default setting value “40”...
Page 539 8. 6. 3.40 Compensation of Fuser Motor Speed for roll paper (Tracing paper / A3, 12” & 11”) (No.076 to 081, 680, 681) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 540 8. 6. 3.41 Compensation of Fuser Motor Speed for roll paper (Film / A3, 12” & 11”) (No.082 to 087, 682, 683) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed.
Page 541 8. 6. 3.42 Compensation of Fuser Motor Speed for roll paper (Special plain paper / A3, 12” & 11”) (No.088 to 093, 684, 685) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 542 8. 6. 3.43 Compensation of Fuser Motor Speed for roll paper (Special tracing paper / A3, 12” & 11”) (No.094 to 099) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed.
Page 543 8. 6. 3.44 Compensation of Fuser Motor Speed for roll paper (Special film / A3, 12” & 11”) (No.100 to 105, 688, 689) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 544 8. 6. 3.45 Compensation of Fuser Motor Speed for roll paper (Plain paper / A2, 18” & 17”) (No.106 to 111, 690, 691) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 545 8. 6. 3.46 Compensation of Fuser Motor Speed for roll paper (Tracing paper / A2, 18” & 17”) (No.112 to 117, 692, 693) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 546 8. 6. 3.47 Compensation of Fuser Motor Speed for roll paper (Film / A2, 18” & 17”) (No.118 to 123, 694, 695) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed.
Page 547 8. 6. 3.48 Compensation of Fuser Motor Speed for roll paper (Special plain paper / A2, 18” & 17”) (No.124 to 129, 696, 697) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 548 8. 6. 3.49 Compensation of Fuser Motor Speed for roll paper (Special tracing paper / A2, 18” & 17”) (No.130 to 135, 698, 699) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 549 8. 6. 3.50 Compensation of Fuser Motor Speed for roll paper (Special film / A2, 18” & 17”) (No.136 to 141, 700, 701) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 550 8. 6. 3.51 Compensation of Fuser Motor Speed for roll paper (Plain paper / A1, 24” & 22”) (No.142 to 147, 702, 703) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 551 8. 6. 3.52 Compensation of Fuser Motor Speed for roll paper (Tracing paper / A1, 24” & 22”) (No.148 to 153, 704, 705) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 552 8. 6. 3.53 Compensation of Fuser Motor Speed for roll paper (Film / A1, 24” & 22”) (No.154 to 159, 706, 707) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed.
Page 553 8. 6. 3.54 Compensation of Fuser Motor Speed for roll paper (Special plain paper / A1, 24 & 22”) (No.160 to 165, 708, 709) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 554 8. 6. 3.55 Compensation of Fuser Motor Speed for roll paper (Special tracing paper / A1, 24” & 22”) (No.166 to 171, 710, 711) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 555 8. 6. 3.56 Compensation of Fuser Motor Speed for roll paper (Special film / A1, 24” & 22”) (No.172 to 177, 712, 713) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 556 8. 6. 3.57 Compensation of Fuser Motor Speed for roll paper (Plain paper / A0, 36” & 34”) (No.178 to 183, 714, 715) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 557 8. 6. 3.58 Compensation of Fuser Motor Speed for roll paper (Tracing paper / A0, 36” & 34”) (No.184 to 189, 716, 717) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 558 8. 6. 3.59 Compensation of Fuser Motor Speed for roll paper (Film / A0, 36” & 34”) (No.190 to 195, 718, 719) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed.
Page 559 8. 6. 3.60 Compensation of Fuser Motor Speed for roll paper (Special plain paper / A0, 36 & 34”) (No.196 to 201, 720, 721) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 560 8. 6. 3.61 Compensation of Fuser Motor Speed for roll paper (Special tracing paper / A0, 36” & 34”) (No.202 to 207, 722, 723) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 561 8. 6. 3.62 Compensation of Fuser Motor Speed for roll paper (Special film / A0, 36” & 34”) (No.208 to 213, 724, 725) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed.
Page 562 8. 6. 3.63 Main Motor Speed (No.310 to 315) It is possible to adjust the speed of Main Motor for each type of paper separately. If you increase the setting value by “+1”, the motor speed becomes 0.04mm/second faster. Item Setting Item Default value Setting...
Page 563 8. 6. 3.66 Compensation of Fuser Motor Speed for cut sheet paper (Plain paper / A3, A2, 12”, 11”, 18” & 17”) (No.328 to 333) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 564 8. 6. 3.67 Compensation of Fuser Motor Speed for cut sheet paper (Tracing paper / A3, A2, 12”, 11”, 18” & 17”) (No.334 to 339) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 565 8. 6. 3.68 Compensation of Fuser Motor Speed for cut sheet paper (Film / A3, A2, 12”, 11”, 18” & 17”) (No.340 to 345) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 566 8. 6. 3.69 Compensation of Fuser Motor Speed for cut sheet paper (Special plain paper / A3, A2, 12”, 11”, 18” & 17”) (No.346 to 351) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 567 8. 6. 3.70 Compensation of Fuser Motor Speed for cut sheet paper (Special tracing paper / A3, A2, 12”, 11”, 18” & 17”) (No.352 to 357) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 568 8. 6. 3.71 Compensation of Fuser Motor Speed for cut sheet paper (Special film / A3, A2, 12”, 11”, 18” & 17”) (No.358 to 363) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 569 8. 6. 3.72 Compensation of Fuser Motor Speed for cut sheet paper (Plain paper / A1, 24” & 22”) (No.364 to 369) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed.
Page 570 8. 6. 3.73 Compensation of Fuser Motor Speed for cut sheet paper (Tracing paper / A1, 24” & 22”) (No.370 to 375) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed.
Page 571 8. 6. 3.74 Compensation of Fuser Motor Speed for cut sheet paper (Film / A1, 24” & 22”) (No.376 to 381) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a film of A1, 24”...
Page 572 8. 6. 3.75 Compensation of Fuser Motor Speed for cut sheet paper (Special plain paper / A1, 24” & 22”) (No.382 to 387) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 573 8. 6. 3.76 Compensation of Fuser Motor Speed for cut sheet paper (Special tracing paper / A1, 24” & 22”) (No.388 to 393) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 574 8. 6. 3.77 Compensation of Fuser Motor Speed for cut sheet paper (Special film / A1, 24” & 22”) (No.394 to 399) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed.
Page 575 8. 6. 3.78 Compensation of Fuser Motor Speed for cut sheet paper (Plain paper / A0, 36” & 34”) (No.400 to 405) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed.
Page 576 8. 6. 3.79 Compensation of Fuser Motor Speed for cut sheet paper (Tracing paper / A0, 36” & 34”) (No.406 to 411) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed.
Page 577 8. 6. 3.80 Compensation of Fuser Motor Speed for cut sheet paper (Film / A0, 36” & 34”) (No.412 to 417) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a film of A0, 36”...
Page 578 8. 6. 3.81 Compensation of Fuser Motor Speed for cut sheet paper (Special plain paper / A0, 36 & 34”) (No.418 to 423) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 579 8. 6. 3.82 Compensation of Fuser Motor Speed for cut sheet paper (Special tracing paper / A0, 36” & 34”) (No.424 to 429) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed.
Page 580 8. 6. 3.83 Compensation of Fuser Motor Speed for cut sheet paper (Special film / A0, 36” & 34”) (No.430 to 435) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed.
Page 581 8. 6. 3.84 Compensation of Fuser Motor Speed for roll paper (Plain paper / 30”) (No.436 to 441, 726, 727) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a plain paper of 30”...
Page 582 8. 6. 3.85 Compensation of Fuser Motor Speed for roll paper (Tracing paper / 30”) (No.442 to 447, 728, 729) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a tracing paper of 30”...
Page 583 8. 6. 3.86 Compensation of Fuser Motor Speed for roll paper (Film / 30”) (No.448 to 453, 730, 731) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a film of 30”...
Page 584 8. 6. 3.87 Compensation of Fuser Motor Speed for roll paper (Special plain paper / 30”) (No.454 to 459, 732, 733) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed.
Page 585 8. 6. 3.88 Compensation of Fuser Motor Speed for roll paper (Special tracing paper / 30”) (No.460 to 465, 734, 735) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed.
Page 586 8. 6. 3.89 Compensation of Fuser Motor Speed for roll paper (Special film / 30”) (No.466 to 471, 736, 737) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd, 3rd and 4th Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a film (special media) of 30”...
Page 587 8. 6. 3.90 Compensation of Fuser Motor Speed for cut sheet paper (Plain paper / 30”) (No.472 to 477) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a plain paper of 30”...
Page 588 8. 6. 3.91 Compensation of Fuser Motor Speed for cut sheet paper (Tracing paper / 30”) (No.478 to 483) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a tracing paper of 30”...
Page 589 8. 6. 3.92 Compensation of Fuser Motor Speed for cut sheet paper (Film / 30”) (No.484 to 489) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a film of 30”...
Page 590 8. 6. 3.94 Compensation of Fuser Motor Speed for cut sheet paper (Special tracing paper / 30”) (No.496 to 501) It is possible to compensate the Fuser Motor speed specifying each Fuser Motor 1st, 2nd and 3rd Speed. It is also possible to specify when to switch the speed. (Switch timing) These settings become effective when you use a tracing paper (special media) of 30”...
Page 591 8. 6. 3.96 Transfer Voltage applied at 100mm from trailing edge (Plain paper / Tracing paper / Film) (No.508 to 510) It is possible to adjust the analog voltage to Transfer Corona on 100mm end of a print. This section does not function and is reserved for future update. Item Setting Item Default value...
Page 592 8. 6. 3.99 Judgment value for Additional Cut Length for Non-standard Size Prints (No.613 to 616) It is possible to avoid the lack of trailing image on the non-standard size print, by providing additional paper length by service modes 4-617 to 4-620 (Additional Cut Length for non-standard size print).
Page 593 Reference (2) If the actual image length is longer than (or equal to) “A+B”, “C” is provided to the trailing edge of non-standard size print. A: Standard Cut Length (depends on roll width) B: Value of “Judgement Value for “Additional Cut Length for Non-standard Size Prints” C: Value of “Additional Cut Length for Non-standard Size Prints”...
Page 594 8. 6. 3.100 Additional Cut Length for Non-standard Size Prints (No.617 to 620) It is possible to avoid the lack of trailing image on the non-standard size print, by providing additional paper length by service modes 4-617 to 4-620 (Additional Cut Length for non-standard size print).
Page 595 8. 6. 3. 103 Density Sensor Standard Output (No.623) NOTE This setting has been factory-adjusted. Keep the value unchanged. It is possible to change the default analog output of Density Sensor. “Density Sensor Standard Output” (No.623) and “Density Sensor Analog Voltage” (No.624) are used for Density Measure.
Page 596 8. 6. 3. 105 Print - Fuser Temperature Side (12”/11”/A3) (No.625 to 630) It is possible to adjust the side part of Fuser Temperature in a print cycle. You can specify the temperature for each type and size of media separately. The Fuser Temperature becomes 1 degree higher if you increase the setting value by “+1”.
Page 597 8. 6. 3. 107 Print - Fuser Temperature Side (24”/22”/A1) (No.637 to 642) It is possible to adjust the side part of Fuser Temperature in a print cycle. You can specify the temperature for each type and size of media separately. The Fuser Temperature becomes 1 degree higher if you increase the setting value by “+1”.
Page 598 8. 6. 3. 109 Density Sensor Output Monitor (No.649) NOTE This setting is factory-use only. Keep the value unchanged. It is possible to change the mode to monitor the default analog output of Density Sensor. Default Value Setting Range 0 to 4 8.
Page 599 8. 6. 3. 111 Total Increment of Regulation Bias Adjustment (No.651) NOTE This setting can be used for checking purpose only. Setting change is allowed to factory-use only. Keep the value unchanged. It is possible to check the total amount (increment) of currently applied Regulation Bias Adjustment by Density Compensation.
Page 600 8. 6. 3. 112 Density Compensation ON/OFF (No.652) It is possible to decide whether Density Compensation is enabled. Setting value Contents Density Compensation Process is disabled Density Compensation Process is enabled (default) Reference Density Compensation Process is performed as follows. 1.
Page 601 8. 6. 3. 113 Target Density (No.653) NOTE This setting has been factory-adjusted. Keep the value unchanged. It is possible to change Target Density that should be achieved and maintained for consistent print density. If the current density does not meet Target Density, Regulation (Developer) Bias will be automatically adjusted based on the current Adjustment Level.
Page 602 8. 6. 3. 116 Developer Bias Increment for Auto Adjustment Level 1 and after (No.657) NOTE This setting has been factory-adjusted. Keep the value unchanged. It is possible to change the amount (increment) of Developer Bias Adjustment. A specified increment of Developer Bias will be applied at switching to and as of Auto Adjustment Level 1.
Page 603 8. 6. 3. 117 Ready - Fuser Temperature Center (No.660 to 665) It is possible to specify “Ready” temperature. You can specify the temperature for each type of media separately. This setting will be applied only when Fuser Temperature is below 50 C at turning on the machine.
Page 604 8. 6. 3. 119 Fuser Motor Speed (18” / 17” / 15” / 12” / 11” / A2 / A3) (No. 672 to 677) It is possible to adjust the speed of Fuser Motor for each type of paper separately. If you increase the setting value by “+1”, the motor speed becomes 0.04mm/second faster.
Page 605 8. 6. 3. 121 Standby - Fuser Temperature (No.738, 739) It is possible to adjust the Fuser Temperature to be maintained while waiting for a print job. You can specify the temperature for the center and the sides separately. This setting is applied after the period of Fuser Temperature Overshoot (+10 C against “Ready - Temperature”...
Page 606 8. 6. 3. 123 Fuser Motor Speed applied at 100mm from trailing edge (36” / 34” / 30” / A0 / B1 width) (No.743 to 745) It is possible to adjust the speed of Fuser Motor driving on 100mm end of a print in 36” / 34” / 30” / A0 / B1 width.
Page 607 8. 6. 3. 127 Tracing Mode (No. 749) Even in “ready” condition, the fuser temperature is controlled slightly lower than “Print” temperature in order to reduce inside temperature. It quickly rises up to “Print” temperature at the same time as the printer starts printing an output job. This setting will keep media feeding wait for the completion of the fuser temperature recovery.
Page 608 8. 6. 3. 130 Auto Initial Cut After Long Print (No. 753, 754) Trimming the leading edge maintains feeding stability for the subsequent print right after a long print longer than the guarantee length. “Auto Initial Cut After Long Print” ejects a 210mm sheet for initial cut right after completion of a long print that exceeds a specified length and number of sheets.
Page 609 8. 6. 3. 132 Leading Registration for Paper Tray (No. 756) It is possible to specify where to start printing the image at the leading edge of a sheet from the Paper Tray. If you increase the setting value by “+1 “, the head of image is shifted 1mm downward toward the trailing edge As a result the leading margin becomes larger.
Page 610 8. 6. 3. 134 Side Registration for Paper Tray (No. 758) It is possible to specify where to start printing the image at the side edge of a sheet from the Paper Tray. If you increase the setting value by “+1 “, image is shifted 0.1mm to the right. Default Value Setting Range Step of increment...
Page 611 8. 6. 4 Creating Backup It is possible to save the current parameters in Adjustment Mode as RAM file. RAM file can be used for backup measure. NOTE Prior to any attempts at significant changes on Adjustment Mode, export the current parameters to .RAM file.
Page 612 8. 6. 5 Restoring Configuration from Backup It is possible to restore the parameters by using a RAM file that has been saved before. This can be used for the following possible cases. - If the current parameters have loss or damage of data. - To apply parameters of a certain printer to another.
Page 613 4. Press [Save]. After confirmation, the read parameters will be sent to the printer. WWW.SERVICE-MANUAL.NET 8-158...
Page 614: Running Mode
8. 7 Running Mode In Running Mode, the printer takes usual printing operation with no print media loaded. If you install any roll media, it is transported and ejected from the printer as usual as normal print. Note that the printer will continue printing till the media empty. NOTE Running Mode is not available in Service Mode.
Page 615 Jam Mask screen Name Function Mask List Displays Mask items in drop-down menu Choose one item that you want to mask. Check All Starts jam masking against all the items Uncheck All Cancels jam masking against checked items media situation Specifies which situation to be masked.
Page 616 Error Mask screen Name Function Mask List Displays Mask items in the list Select mask target(s) that you want to mask. Starts error masking while item(s) is checked Check All Starts error masking against all the items Uncheck All Cancels error masking against checked items Back Returns to Service Mode Home WWW.SERVICE-MANUAL.NET...
Page 617 8. 8. 1 Mask List Jam Mask 0000 Roll 2 Set Roll 2 Deck Jam 0001 Roll 1 Set Roll 1 Deck Jam 0002 Feed Feeding Jam 0003 Regist Registration Jam 0004 Manual Manual Jam 0005 Sep Internal Jam 0006 Exit Fuser / Exit Cover Jam 0007 Pickup Pickup Jam (Paper Tray)
Page 618 8. 8. 2 Masking Jam 1. Press [Jam Error Mask] in Service Mode Home. Mask Target screen appears. WWW.SERVICE-MANUAL.NET 8-163...
Page 619 2. Press [Paper Jam]. WWW.SERVICE-MANUAL.NET 8-164...
Page 620 3. Select the desired target from the pull-down menu. Check any of “Remain” / “Delay” / “Early” then the concerning sensor starts to ignore the checked jam. NOTE Available mask situation selection (Remain, Delay, Early) may vary by printer model. WWW.SERVICE-MANUAL.NET 8-165...
Page 621 8. 8. 3 Masking Error 1. Press [Jam Error Mask] in Service Mode Home. Mask Target screen appears. WWW.SERVICE-MANUAL.NET 8-166...
Page 622 2. Press [Error]. WWW.SERVICE-MANUAL.NET 8-167...
Page 623 3. Check items that you want to mask. Then the concerning sensor starts to ignore the checked Error. NOTE No “Door Open” mask is available. WWW.SERVICE-MANUAL.NET 8-168...
Page 624: Test Print Mode
8. 9 Test Print Mode It is possible to output some built-in test patterns as a stand alone plotter. No external device (controller / scanner / network connection) is required for test pattern plotting. Basic Setting screen Name Function Deck Displays media source in drop-down menu Choose one item that you want to use for test print.
Page 625 Option screen Name Function Positive / Choose “Negative” for B/W inverting. Negative Image Displays Image Enhancement Level Enhancement Mirror Enables horizontal reverse image Add Scale Adds scales on the test print Basic Setting Switches to Basic Setting screen Back Returns to Service Mode Home WWW.SERVICE-MANUAL.NET 8-170...
Page 626 8. 9. 1 Making Test Print 1. Press [Test Print] in Service Mode home. WWW.SERVICE-MANUAL.NET 8-171...
Page 627 2. Configure a test print job. In Basic Setting tab, you can configure media source, type, length, image pattern selection, number of sheets. 3. If necessary, open Sub Setting tab to configure some other settings. 4. Press [Enter] to start printing the configured test print. WWW.SERVICE-MANUAL.NET 8-172...
Page 628 8. 9. 2 Built-in Test Pattern Pattern No.1 Pattern No.4 Pattern No.7 Pattern No.2 Pattern No.5 Pattern No.8 Pattern No.3 Pattern No.6 8. 10 Factory Adjustment Mode This mode is mainly used at factory for adjustment and product operation test. NOTE Factory Adjustment Mode is not available in Service Mode.
Page 629: Special Operation Mode
8. 11 Special Operation Mode Special Operation Mode has several kinds of special important functions to the machine. (1) Clears the following recorded error - E-0000 Fuser Temperature Rising Error - E-0001 Fuser Over Temperature Error - E-0002 Fuser Low Temperature Error - E-0003 / 0004 Fuser Temperature Abnormal Fall Error (2) Clears the following history - Jam History...
Page 630 Counter Input screen Name Function Counter Name Displays the counter name you have chosen Reading Displays the current counter value stored in the memory Count Displays an input counter value by using On-screen Keypad Rewrite Applies a new counter value in “Count” to the selected counter Return Returns to Clear Target screen WWW.SERVICE-MANUAL.NET...
Page 631 8. 11. 1 List of Special Operation Item No. Name Contents 0000 RAM Clear Clears any stored data in the memory 0001 Error Clear Clears E-0000 / 0001 / 0002 / 0003 / 0004 from the memory 0002 Jam History Clears Jam records J-**** in Jam History list 0003 Error History...
Page 632 8. 11. 2 Clearing Fuser Error, Jam/Error History 1. Press [Special Operation] in Service Mode Home. Operation Target screen appears. WWW.SERVICE-MANUAL.NET 8-177...
Page 633 2. Specify one item that you want to use from Name of mode menu. Press [Enter]. Item No. Clear Item Contents 0001 Error Clear Clears E-0000 / 0001 / 0002 / 0003 / 0004 from the memory 0002 Jam History Clears Jam records J-**** in Jam History list 0003 Error History...
Page 634 8. 11. 3 Reset of Bias Adjustment by Density Compensation Process NOTE After replacing Developer Roller / toner refreshment, you must reset bias adjustment by Density Compensation Process. Otherwise a darker image appears because the adjusted values are too high voltage for the refreshed Developer Unit.
Page 635 2. Select [0006 Bias3 Count] from Name of mode menu. Press [Enter]. 0006 Bias3 Count Initializes Developer / Regulation Bias adjusted with Density Compensation Process 3. Confirmation screen appears. Press [Agree] to reset Bias Adjustment by Density Compensation Process. Then the system starts recalculation of the possible best Developer/Regulation Bias. (This will take time.) WWW.SERVICE-MANUAL.NET 8-180...
Page 636 4. Input screen appears. “0000000” Input with On-screen Keypad. NOTE The required value for the TASKalfa 4820w to reset Bias Adjustment by Density “0000000” Compensation Process is “0000000” to “0000003” correspond to the adjustment level in Density Compensation Process. For example, if you interchange the Developer Unit with your spare unit, you can manually set a certain adjustment level that would be suitable for your spare unit.
Page 637 8. 11. 4 Toner Supply Mode 1. Press [Special Operation] in Service Mode Home. Operation Target screen appears. WWW.SERVICE-MANUAL.NET 8-182...
Page 638 2. Select [0007 Toner Supply1] from Name of mode menu. Press [Enter]. 0007 Toner Supply1 Starts toner supply / agitation in Developer Unit 3. Confirmation screen appears. Press [Agree]. Toner supply / agitation starts. This will take minutes to complete. WWW.SERVICE-MANUAL.NET 8-183...
Page 639 4. Once you press [Agree], it will turn deactivated. Press [Return]. 5. The screen goes back to Operation Target Screen. The status window shows “warm up” during toner supply / agitation. After the completion, it changes to “standby”. WWW.SERVICE-MANUAL.NET 8-184...
Page 640 8. 11. 5 Changing Counter Value Reference For any counting parameters, pressing [Enter] switches to Counter Input screen. This does not effect to the current counter value. NOTE Total Count (0005) / Print Count (0004) are stored on both PW12420 and the controller. If you replace one of them, the other will automatically copy the stored Count memory to the replacement.
Page 641 2. Specify one item that you want to use from Name of mode menu. Press [Enter]. WWW.SERVICE-MANUAL.NET 8-186...
Page 642 3. Confirmation screen appears. Reference For any counting parameters, pressing [Enter] switches to Counter Input screen. This does not effect to the current counter value. WWW.SERVICE-MANUAL.NET 8-187...
Page 643 4. Input a desired value with On-screen Keypad. The value is displayed in “Count” area. Once you input a seven digit value, [Rewrite] will be activated. Press [Rewrite] to apply the new value to the printer. The value in “Reading” area will be changed to the new value. Example: 0000000 ...
Page 644 8. 12 Send Firmware Mode You can send a new version firmware program provided by the manufacturer to the printer. Note that the firmware program is named “K124X##A.mot”. NOTE A firmware update does not effect to the current parameters. They remain unchanged. But please be sure to make a backup in .RAM prior to any firmware update just in case.
Page 645 8. 12. 1 Sending Firmware to Printer 1. Press [Send Firmware] in Service Mode Home. Send Firmware screen appears. WWW.SERVICE-MANUAL.NET 8-190...
Page 646 2. Choose “Program Mode” from Mode Select menu if not displayed. WWW.SERVICE-MANUAL.NET 8-191...
Page 647 3. Press [Select File] to locate and open a .mot file that you want to apply. NOTE For TASKalfa 4820w, its firmware program is always named “K124X##A.mot” Do not open any other file. WWW.SERVICE-MANUAL.NET 8-192...
Page 648 4. Check for the program size and its checksum of the .mot file you have chosen. Press [Update] to send it to the printer. NOTE (1) “Program Size” and “Checksum” vary by the firmware version. (2) If you accidentally send an incorrect file to the printer, send a correct one when the current transmission is completed.
Page 649: Scanner Utility
8. 13 Scanner Utility Scanner Utility is a program that provides several scanner adjustments. - Shading (mono/color calibration) - Feed Distance (1:1) - Position (stitch) 8. 13. 1 Installation NOTE Below are the system requirements to operate Scanner Utility.  Windows 2000 / XP operating system ...
Page 650 3. Turn on both your PC and the printerw. [Found New Hardware Wizard] starts automatically. Click [Next]. If the following message appears, choose “No, not this time” and click [Next]. 4. Choose “Install the software automatically [Recommended]”. Click [Next]. K124SC NOTE If the auto detection does not work properly, click “Install from a list of specific location [Advanced]”...
Page 651 5. Click [Continue Anyway] when the following message is indicated. K124SC 6. Click [Finish] to close [Found New Hardware Wizard]. K124SC 7. Open Device Manager, and confirm that “K124SC” is operating properly. WWW.SERVICE-MANUAL.NET 8-195...
Page 652 8. 13. 1. 2 Installing Scanner Utility NOTE: Contact your partner for the latest software and save it to any available storage on your service PC. 1. Locate your SETUP.EXE for Scanner Utility and execute it. 2. The Setup program starts. Click [Next]. 3.
Page 653 4. The name of the program folder can be changed. Click [Next]. 5. The following message is indicated when all files have been copied. Click [Finish]. WWW.SERVICE-MANUAL.NET 8-197...
Page 654 6. Open the properties panel for the “Scanner Utility” shortcut on “Start” _”Program” _ “Scanner Utility” _ “Scanner Utility”. (ex. right click on the shortcut) 7. Add the following text to the end of the target path. Click [Apply]. “ /Maintenance”...
Page 655 8. 13. 2 Starting Scanner Utility Start Scanner Utility by; “Start” _”Program” _ “ScannerUtility” _ “ScannerUtility” (Scanner Utility’s initial screen) WWW.SERVICE-MANUAL.NET 8-199...
Page 656: Displaying Scanner Information
8. 13. 3 Displaying Scanner Information It is possible to display the scanner information in the following way. 1. Select [Information] under [Scanner]. 2. Scanner Utility acquires the scanner information and displays it. WWW.SERVICE-MANUAL.NET 8-200...
Page 657 Shading Sheet White Area Black Area The TASKalfa 4820w uses R/G/B light sources not only for color reading but also for monochrome reading. The scanner unit will be calibrated in monochrome/color at the same time. [Necessary situation] Shading is required when;...
Page 658 NOTE (1) Shading adjustment should be performed with Shading Sheet (P/N: 305JZ70210, with a bar code). 1 sheet of Shading Sheet is included in the product accessary. Keep it in safe custody. (2) Shading adjustment should be performed with “Scanner Utility 1.23 (or later)”. (3) Please clean Scan Glasses before Shading.
Page 659 5. Set Shading Sheet in the TASKalfa 4820w accessory to the scanner noting the arrow direction. NOTE (1) Use the Shading Sheet in the TASKalfa 4820w Accessory. The Shading Sheet has a bar code on the top right. A shading sheet without the bar code cannot properly calibrate the Bar code TASKalfa 4820w Scanner Unit.
Page 660 7. When Shading is finished, the following message appears. Click [OK]. Open the scanner and reload Shading Sheet to the scanner and click [Confirm] to check the result of Shading. 8. The scan image of Shading Sheet is displayed. (It looks gray due to “calibrating” scan) Scan image of Shading Sheet WWW.SERVICE-MANUAL.NET...
Page 661 9. Scroll the image right and left to find a strong black/white line that runs vertically in one pixel wide. If there is no such line in the whole image, click [Close] to finish Shading. The following picture is an example of the line (due to “defective pixel”). A defective pixel needs individual pixel calibration in the later steps.
Page 662 10. If you will calibrate an individual pixel, select [Specified part]. 11. Move the pointer onto the scan image, and you will find a kind of red cursor. cross cursor defective pixel WWW.SERVICE-MANUAL.NET 8-206...
Page 663 12. Move the red cursor so that its vertical line matches the defective pixel and click it. The defective pixel is selected by this operation. If there are some more defective pixels, select them in the same way. Match the vertical line to a defective pixel. 13.
Page 664 (1:1) 8. 13. 4. 2 Feed Distance [Purpose of Feed Distance (1:1)] The lengths between actual original image and scan image may become different each other if you replace the Feed Roller of the Scanner Unit. This is caused by the mechanical play that each Feed Roller has. Actual original image Scan image “Feed Distance”...
Page 665 [Operation] 1. Measure the actual distance between “a point” and “c point” on the far left area of Scanner Adjustment Chart, and between “b point” and “d point” on the far right area. Let’s suppose that each distance is as follows. Between “a point”...
Page 666 4. Select [Adjust Feed Distance] from [Adjust]. Adjust Feed Distance Dialog is indicated. NOTE (1) If [Adjust Feed Distance] does not appear, follow the instruction below. a) Open the properties panel for Scanner Utility shortcut. (ex. right click on the shortcut) b) Add the following text to the end of the target path.
Page 667 5. At first, input the in [Actual Distance], actual distance between “a point” and “c point” which you have measured at the former step “1”. Actual distance between “a” and “b” 6. Set Scanner Adjustment Chart to the scanner unit, and then click [Scan]. 7.
Page 668 8. The scan image of Scanner Adjustment Chart is indicated in the screen of Scanner Utility. Scan image of the chart Reference You can enlarge the scan image by dragging with the right button of mouse. Press the F2 Key when you would like to go back to the reduced image. 9.
Page 669 10. Click the input window of [Theoretical Distance]. A red cursor appears on the screen. 11. Click the mouse once at the measuring point. Click on the measuring point “a”. WWW.SERVICE-MANUAL.NET 8-213...
Page 670 12. Similarly indicate the enlarged image of “c point” and click the mouse at the measuring point. Click on the measuring point “c”. 13. Some value is indicated in [Theoretical Distance] according to 2 measuring points you specified at both steps “9” and “10”. This value means the distance between “a point”...
Page 671 15. Click [Set], and the calculated Feed Adjustment Value is validated. 16. It is necessary to check the balance of original feeding between left and right after validating the new setting. (Left side means “a-c points” side, and right side means “b-d points” side.) Repeat the former steps from “3”...
Page 672 8. 13. 4. 3 Position [Purpose of Position (stitching)] The scanner part of TASKalfa 4820w reads the image of original with 5 - CIS (Contact Image Sensor). As these CIS are arranged in 2 rows, there occurs a vertical gap of image among the image blocks.
Page 673 [Operation] 1. Connect the scanner unit and the PC directly with the USB 2.0 Cable. 2. Start Scanner Utility. 3. Select [Automatic Adjustment] from [Adjust]. Scanner Adjustment Dialog is indicated. NOTE If [Automatic Adjustment] does not appear, follow the instruction below. a) Open the properties panel for Scanner Utility shortcut.
Page 674 4. Set Stitch Adjustment Chart to the scanner noting the set direction and press [OK]. Stitch Adjustment Chart NOTE An incorrect feeding of Stitch Adjustment Chart may result in an error. Position Stitch Adjustment Chart with the center of Original Table and avoid skewing. 5.
Page 675 7. Select [Adjust Position] from [Adjust]. Adjust Position subscreen is indicated. 8. Set Stitch Adjustment Chart to the scanner again and press [Scan]. WWW.SERVICE-MANUAL.NET 8-219...
Page 676 9. A dialog to specify the scan settings is indicated. Simply click [Scan] to scan the chart. (You do not have to change any setting this time.) 10. The scan image of Scanner Adjustment Chart is indicated in the screen of Scanner Utility. Scan image of the chart WWW.SERVICE-MANUAL.NET...
Page 677 11. Enlarge the top center area by right dragging. Reference There is a gap between the leading edge of the scan image and the leading edge of the chart at this time. This band area shows that both of the edges do not match together. The gap will be removed after the completion of Position adjustment for the leading edge.
Page 678 12. Click “Origin” entry field of the subscreen. A red cross cursor appears on the scan image. WWW.SERVICE-MANUAL.NET 8-222...
Page 679 13. Click once on the top center of the chart in the scan image. A value appears in the field. Top center NOTE If you make any unintended clicks on the image, press [Close] and go back to step 8. WWW.SERVICE-MANUAL.NET 8-223...
Page 680 14. Press [Check] then [Set]. 15. A dialog appears to prompt confirmation of the result. Press [OK]. WWW.SERVICE-MANUAL.NET 8-224...
Page 681 16. Start Adjust Position again. Make a rescan of Stitch Adjustment Chart. Confirm the result of the adjustment. If the gap disappears, LE positioning is completed. No gap (band area) NOTE If the rescan image still has a gap, go back to step 11 to remove it completely. Every scan image has a blank band on the leading edge by the gap.
Page 682: Updating Scanner Firmware
8. 13. 5 Updating Scanner Firmware It is possible to install a new Firmware to the TASKalfa 4820w with Scanner Utility. 1. Select [Update Firmware] under [Scanner]. 2. Firmware Download Utility is displayed. Click [Browse]. K124 WWW.SERVICE-MANUAL.NET 8-226...
Page 683 (The name of the firmware file or the CRC value may vary as the picture below is an example) K124 name of firmware file 5. A dialog is displayed, which request you to turn off the TASKalfa 4820w. Turn off the machine. 6. Click [Exit] finally.
Page 684 Chapter 9 Appendix WWW.SERVICE-MANUAL.NET...
Page 685 9. 1 Schematic Wiring around Controller IPS Assy for TASKalfa 4820w (DC1 type) (relay at rear) (scanner) (relay at UI front) Ethernet Interface 8 vacant VGA (UI) COM (UPS) IPS Power OPTION: (folder) (PW12420) (UI) Interface 8 IPS Power Ethernet...
Page 686: Overall Diagram
9. 2 Overall Diagram WWW.SERVICE-MANUAL.NET...
Page 687 KIP 7100 Overall Circuit Diagram WWW.SERVICE-MANUAL.NET (USA/120V)
Page 688 KIP 7100 Overall Circuit Diagram WWW.SERVICE-MANUAL.NET (EUR/230V)
Page 689 NOTE: 1. Items shown by gray are not used. 2. CA means the cable. SCANNER DIAGRAM WWW.SERVICE-MANUAL.NET...
Page 690: Setup Procedure
Chapter 10 Setup Procedure 1. Paper Tray Kit 2 2. Original & Print Receiving Tray 3. Copy Tray Wide 2 4. AK-54G WWW.SERVICE-MANUAL.NET...
Page 691 Afterwards, take out Pad (4), (5), (6). Bracket 15 Assy NOTE 1. Rotate and pull Pad (4) (6) to remove. 2. Bracket 15 Assy is packed inside Pad (5). Do not throw away Pad (5). WWW.SERVICE-MANUAL.NET TASKalfa 4820w / XC9148 / CX8148...
Page 692 3. Slide the whole Paper Tray Assy to the arrow direction (in 20mm), and then remove Pad (7). 4. Remove the Rail Assy (8), Cover 3, 4 (9), Small Parts (10) and Knob Cover (11). WWW.SERVICE-MANUAL.NET...
Page 693: Checking Contents
2. Checking Contents Confirm the following parts are attached to the “Paper Tray Kit 2”. Knob Cover Procedure Paper Tray Assy Cover 3 Cover 4 Rail Assy X 18 Screw Guide Bracket 21 Bracket 14 Assy Bracket 15 Assy Tooth Washer Screw Wire Saddle WWW.SERVICE-MANUAL.NET...
Page 694 3. Installing “Paper Tray Kit 2” NOTE Turn off the main unit before operation. Unplug the power cord after an interval of 2 minutes for shutdown. 1. Remove Exit Tray (1) and Exit Tray 2 (2). 2. Press the levers (3) to open Engine Unit. 3.
Page 695 4. Close Engine Unit. 5. Loosen 4 screws (6), remove 4 screws (7) and remove the Rear Cover (8). 6. Remove 2 screws (9). 7. Lift up Roll Deck Panel (10) and remove it from the machine. (Roll Deck Panel will be reused) WWW.SERVICE-MANUAL.NET...
Page 696 8. Remove 2 screws (11) to remove Bracket 7 (12). (Bracket 7 (12) is not reused) Reference Open Close If you use a long screwdriver, draw out Roll Deck in about 10cm to get work space. 9. Attach Bracket 21 (13) with the screws (11) which were removed on the step 8. WWW.SERVICE-MANUAL.NET...
Page 697 10. Install Rail Assy (15) with 2 screws (14) on both sides. 11. On the rear side, install Bracket 14 Assy (16) with 2 Tooth Washer screws (17). WWW.SERVICE-MANUAL.NET...
Page 698 12. Install Bracket 15 Assy (18) with 2 Tooth Washer screws (19). 13. Attach 2 Wire Saddles (20) to the machine base. Secure the harness with them (20) and connect it to the connector (21). WWW.SERVICE-MANUAL.NET...
Page 699 14. Extend the railings on both Rail Assy (15). Place Paper Tray Assy (23) on them. Fix them with 4 screws (22). NOTE Make sure that the positioning pin (24: on both sides) on the railings (15) fit in the positioning hole of Paper Tray Assy (23).
Page 700 15. Remove Deck Plate (25) from Roll Deck Panel (10, mentioned on step 7). Remove 2 tapping screws (26) to remove the Bracket 6 (27). (Deck Plate (25), Bracket 6 (27) are not reused) 16. Fit Knob Cover (28) in the opening area of Roll Deck Panel (10). NOTE Make sure that the tab parts (29) on the back of Knob Cover firmly catch Roll Deck Panel.
Page 701 17. Put Roll Deck Panel (10) on Paper Tray Assy. Fit the 3 tab areas (30) on the back of Roll Deck Panel to the square holes (31) on the frame of Paper Tray Assy. WWW.SERVICE-MANUAL.NET...
Page 702 18. Fix Roll Deck Panel (10) with 6 screws (26), (32). Reuse 2 tapping screws (26) mentioned on step 15. NOTE There are 2 types of Roll Deck Panel (10), with or without tapping screw holes. If your Roll Deck Panel does not have one, 2 tapping screws (26) are not reused. With screw hole With screw hole Without screw hole...
Page 703 19. On both sides, install Cover 3 / Cover 4 (33) with 3 screws (34) each. NOTE Put only (A) tab part of Cover 3 / Cover 4 (33) inside the railings. Correct Wrong WWW.SERVICE-MANUAL.NET...
Page 704 20. Put Guide (35) inside Paper Tray Assy. 21. Return Rear Cover, Right / Left Side Cover. 22. Close the Engine Unit. 23. Return Exit Tray and Exit Tray 2. NOTE Be sure to reinstall Exit Tray (1) with Engine Unit closed. WWW.SERVICE-MANUAL.NET...
Page 705 4. Change of the Service Mode Setting 1. Turn on the main unit. 2. Press [? HELP] on the Home screen. 3. Press [Service]. Input “8495107” and press [Enter]. 4. Service Configuration screen will appear. On “Setup Menu 1”, Change “Rolls” to [ 3 ]. WWW.SERVICE-MANUAL.NET...
Page 706 5. Use the arrow keys to move to “IPS Setup”, and then press [Launch]. 6. A confirmation dialog appears. Press [Yes]. Press [Login] to log in Service Mode. 7. Press [Adjustment] in Service Mode Home. WWW.SERVICE-MANUAL.NET...
Page 707 8. Press [000 to 099]. 9. Select [0058 Deck3 Option] from “Item Code / Name” menu. 10. Set the parameter to “1”. 11. Press [Apply] to validate the change. WWW.SERVICE-MANUAL.NET...
Page 708 12. Press [Back], [Logout] then [Close] to cancel Service Mode. 11. UI screen will display Home screen in a short time. “Sheet 3" appears here. WWW.SERVICE-MANUAL.NET...
Page 709 5. Operation Check and Adjustment 1. Referencing [6. Note for loading media], load the media to the Paper Tray. Portrait 2. On Home screen, select the cut sheet size / direction. (example: 8.5”x11” 3. Referencing [4. Change of the Service Mode Setting], display the following screen, and then press [Test Print].
Page 710 4. Select [Deck] to “Paper Tray”. And then, confirm that the setting of [Size] is the paper width which was set at the step 2. 5. Select the test pattern No.1 S(0) and press [Start]. WWW.SERVICE-MANUAL.NET...
Page 711 6. Checking the trailing margin (5mm plus or minus 2mm) on the print, adjust the trailing margin, if needed. 5mm±2mm 7. To adjust the trailing margin, use No.757 (T Margin (MF)) For smaller trailing margin, increase the value. Increasing the value by 1 shortens the trailing margin in about 0.5mm. Value increased Value decreased NOTE...
Page 712 6. Note for loading media 1. Only plain paper / bond is available on “Paper Tray Kit 2”. Do not load the other types of media. 2. Up to 50 sheets can be set on Paper Tray. Do not load sheets over the Limit Level on the Paper Guide. Limit Level 3.
Page 713: Installation Requirement
Original & Print Receiving Tray Setup Procedure Ver.A.0 1. Installation Requirement Keep ample space around the equipment to ensure comfortable operation. (Refer to the following figure.) 1500mm Tray L+R=350mm or larger (R must be larger than L) (L=50mm or larger recommended) Machine 800mm or larger (900mm or larger for Paper Tray (Option))
Page 714: Checking Contents
2. Checking Contents Check that the following parts are included in the package. Frame Frame 2 Bracket 2 Beam 3 Beam 2 Beam 4 Plate 4 Adjustment Level WWW.SERVICE-MANUAL.NET...
Page 715 Caster Plate Print Tray Assy Original Tray Assy Tray 10 Arm 4 Bracket A Plate 5 WWW.SERVICE-MANUAL.NET...
Page 716 Tray 4 Plate 6 Tray 9 Arm 3 Tray 8 Tray 7 Feeding Roller Assy Release Ring WWW.SERVICE-MANUAL.NET...
Page 717 Bracket Sheet Guide Plate Assy Cover 5 Cover 6 Bind Head Screw M4x6 Installation Procedure User’s Manual WWW.SERVICE-MANUAL.NET...
Page 718: Assembling Frame
3. Assembling Frame Note: Some pictures show one side (right). The same way for the left. 1. Install Bracket 2 (1) to both frames (2) with 1 screw (3) each. 2. Install 1 screw (4), 2 screws (5), 1 screw (6) loose on both frames (2). WWW.SERVICE-MANUAL.NET...
Page 719 3. Mount Beam 3 (7) on the screws (4). 4. Mount Beam 2 (8) on the screws (5). 5. Mount Beam 4 (9) on the screws (6) and install 1 screw (10) on each side to support Beam 4 (9). WWW.SERVICE-MANUAL.NET...
Page 720 6. Install the rest screws (11) to Beam 3 (7), Beam 2 (8). Tighten the screws (5) (4) (6) (10) (11) on Beam 2 (8), Beam 3 (7), Beam 4 (9). 9: 3rd 8: 1st 7: 2nd 7. Install Caster (12) and Adjustment Level (13) to Plate 2(14). NOTE Install the Casters in the Plate 4 until the shaft completely passes through the Plate 4.
Page 721 8. Install Caster (15) to Plate (16). NOTE Install the Casters in the Plate until the shaft completely passes through the Plate. tapped shaft Wrong Correct 9. Gently turn down the entire frame on a packing material. Fix 2 pieces of Plate (16) to the rear end of the frame with 4 screws (17) each.
Page 722 10. Fix 2 pieces of Plate 2 (14) to the front end of the frame with 4 screws (18) each. Adjustment Level (13) should be located to a closer end of the frame base. 11. Raise the frame. WWW.SERVICE-MANUAL.NET...
Page 723 4. Assembling Tray Note: Some pictures show Print Tray Assy with unmounted for clarification. 1. Turn the extension tray (1) on Print Tray Assy (2) completely. 2. Mount Print Tray Assy (2) to the frame. Insert the hook parts on Print Tray Assy (2) to the holes (3) on Beam 3.
Page 724 3. Insert Arm 3 (4) to the hole (5) on the center of Beam 2. 4. Attach VCP CAP (5) to the bottom end of Arm 3 (4). 5. Fit the top of Arm 3 (4) into the hooking (6) under the middle of Print Tray Assy. WWW.SERVICE-MANUAL.NET...
Page 725 6. Hook Tray 10 (7) on the beam of the hooking (6) in the center block. 7. Insert the other end of Tray 10 (7) to Bracket A (8). With pushing Bracket A (8) to the arrow direction, fix Plate 5 (9) and them together with 1 screw (10). 8 &...
Page 726 8. Hook Tray 4 (11: A) on the beam near Plate 5 (9). Hook the other end (B) to the beam near the extension tray. 9. Hook Tray 4 (12) on the beam near the end of the extension tray in the third block from the outside as shown below.
Page 727 10. Insert the other end of Tray 4 (12) to Bracket A (13). With pushing Bracket A (13) to the arrow direction, fix Plate 6 (14) and them together with 1 screw (15). 13 & 14 13 & 14 11. Hook Tray 9 (16: C) on the beam near the end of the extension tray in the outside small block. Push Tray 9 (16) to the arrow direction to fit the other end (D) to the beam.
Page 728 12. Mount Original Tray Assy (17) to the frame. Insert the hook parts of Original Tray assy (17) to the slots (18) upper inside of both frames. WWW.SERVICE-MANUAL.NET...
Page 729 13. Insert Tray 7 (18) to the holes (19) on Beam 3. Locate the other end of Tray 7 (18) under the end of Original Tray Assy to support it. NOTE Make sure that Tray 7 (18) supports the center of Original Tray Assy in position. Correct: supported in center Wrong: out of position WWW.SERVICE-MANUAL.NET...
Page 730 14. Hook Tray 8 (20) to the center outside rim of Original Tray Assy. Hook the other end to the beam shown below. WWW.SERVICE-MANUAL.NET...
Page 731 5. Setup of the Paper Exit Part 1. Remove Exit Tray (1) and Exit Tray 2 (2). 2. Pull Lever (3) to open Engine Unit. 3. Remove 6 screws (4) to remove Cover 2 (5). 4. Close Engine Unit. WWW.SERVICE-MANUAL.NET...
Page 732 5. Open Paper Exit Assy . 6. Remove screw (6) each to Exit Side Cover (7). 7. Open Wire Saddle (8), and then disconnect Connector (9). WWW.SERVICE-MANUAL.NET...
Page 733 8. Remove KL Clip (10) to remove Paper Exit Assy (Outside). 9. On the main unit, clean the outer side of the 6 Exit Rollers (11) with alcohol. WWW.SERVICE-MANUAL.NET...
Page 734 10. Peel the release paper from Release Ring (12). Insert each Release Rings (12) onto Exit Roller shaft (13) and apply them to Exit Rollers’ cleaned sides. notch entrance NOTE 1. Salient portions on Release Ring (12) stick out from Exit Roller surface in about 0.5mm. 2.
Page 735 11. Replace Paper Exit Assy. Connect the connector (9), and then replace left and right Exit Side Cover (7). 12. Remove right and left screw (15). WWW.SERVICE-MANUAL.NET...
Page 736 13. Close Paper Exit Assy. 14. Remove 3 screws (16) to remove the Cover (17). 15. Attach Cover 5 (18) with the screws (16) which were removed on the step 14. WWW.SERVICE-MANUAL.NET...
Page 737 16. Remove 1 screw (19). Install Cover 6 (20) with the screw (19). 17. Open the Exit Cover. Attach Feeding Roller Assys (22) on the tip of the Eject Switch Guide (21) as shown the photo below. (Refer to the photograph for the attached position.) WWW.SERVICE-MANUAL.NET...
Page 738 6. Installing Original Guides 1. Install 2 pieces of Bracket (1) to Cover 10 with 2 screws (2) each. 2. Apply Sheet (3) to Cover 10 (4). NOTE Note the following instruction for applying Sheet (3). Bent 1. Align the bent on Cover 10 (4) and the rim of Sheet (3) on the taped side.
Page 739 NOTE 2. The side ends of Sheet (3) should be approximately 120mm away from the rim of Cover 10. 120mm 3. Remove 2 screws (5) to remove Cover 10 (4). WWW.SERVICE-MANUAL.NET...
Page 740 4. Apply Guide Plate Assy (7) to the back of the scanner unit. NOTE Match 3 square holes on Guide Plate Assy (7) with the relief holes on the scanner unit. To match them at the center first will avoid skew installation of Guide Plate Assy. 5.
Page 741: Connecting The Main Unit
7. Connecting the main unit 1. Move the whole tray behind the main unit so that the front faces of the frame (1) touch the main unit. WWW.SERVICE-MANUAL.NET...
Page 742 2. Make sure that the Adjusters (2) do not touch with the floor. Confirm that the distance between the floor and the bottom face of the frame should be 78mm. 78mm 78mm 3. Unload until Adjustment Level (2) touches the floor. Afterwards, lock by nut (3). Reference Landing Adjustment Level and all of the 4 Casters ensures the tray’s stabilization and easy movability when removing a paper jam on the main unit.
Page 743 . Attach Original Tray Assy to the main unit. The front beam (7) will fit into Bracket (8). NOTE 1. Holding the fourth shaft from the outside, attach Original Tray Assy. 4th from outside continued on next page WWW.SERVICE-MANUAL.NET...
Page 744 NOTE 2. Locate the whole tray to the center so that Brackets (9) hold the beam in the fourth block from the outside. 3. The plastic sheet on the main unit should overlap Original Tray front. If the plastic sheet gets into under Original Tray, the plastic sheet may damage and an incorrect feeding of originals may occur.
Page 745 8. Change of the Stack Setting 1. Turn on the main unit. 2. Press [? HELP] on the Home screen. 3. Press [Configuration 1]. 4. Configuration screen will appear. Press the arrow keys to move to page 2/4. WWW.SERVICE-MANUAL.NET...
Page 746 5. Change “4820/9148/8148 Stacking” from [Front Only] to [Back Only]. 6. Press [OK]. Home screen will appear. 7. Stack Setting is completed. WWW.SERVICE-MANUAL.NET...
Page 747 Copy Tray Wide 2 Installation Procedure Ver.A.0 1. Installation Requirement Keep ample space around the equipment to ensure comfortable operation. (Refer to the following figure.) 1500mm Tray L+R=350mm or larger (R must be larger than L) (L=50mm or larger recommended) Machine 800mm or larger (900mm or larger for Paper Tray (Option))
Page 748 2. Checking Contents Check that the following parts are included in the package. Bracket 26 Bracket 27 Bracket 25 Bracket 24 Print Tray Assy Tray 10 Arm 4 Bracket A WWW.SERVICE-MANUAL.NET...
Page 749 Plate 5 Plate 6 Tray 4 Tray 9 Arm 2 Cover 5 Cover 6 Release Ring WWW.SERVICE-MANUAL.NET...
Page 750 Feeding Roller Assy Bind Head Screw M4x6 Installation Procedure WWW.SERVICE-MANUAL.NET...
Page 751 3. Installation 1. Remove Exit Tray (1) and Exit Tray 2 (2). 2. Pull Lever (3) to open Engine Unit. 3. Remove 6 screws (4) to remove Cover 2 (5). 4. Close Engine Unit. WWW.SERVICE-MANUAL.NET...
Page 752 5. Open Paper Exit Assy . 6. Remove screw (6) each to Exit Side Cover (7). 7. Open Wire Saddle (8), and then disconnect Connector (9). WWW.SERVICE-MANUAL.NET...
Page 753 8. Remove KL Clip (10) to remove Paper Exit Assy (Outside). 9. On the main unit, clean the outer side of the 6 Exit Rollers (11) with alcohol. WWW.SERVICE-MANUAL.NET...
Page 754 10. Peel the release paper from Release Ring (12). Insert each Release Rings (12) onto Exit Roller shaft (13) and apply them to Exit Rollers’ cleaned sides. notch entrance NOTE 1. Salient portions on Release Ring (12) stick out from Exit Roller surface in about 0.5mm. 2.
Page 755 11. Replace Paper Exit Assy. Connect the connector (9), and then replace left and right Exit Side Cover (7). 12. Remove right and left screw (15). WWW.SERVICE-MANUAL.NET...
Page 756 13. Close Paper Exit Assy. 14. Remove 3 screws (16) to remove the Cover (17). 15. Attach Cover 5 (18) with the screws (16) which were removed on the step 14. WWW.SERVICE-MANUAL.NET...
Page 757 16. Remove 1 screw (19). Install Cover 6 (20) with the screw (19). 17. Open the Exit Cover. Attach Feeding Roller Assys (22) on the tip of the Eject Switch Guide (21) as shown the photo below. (Refer to the photograph for the attached position.) WWW.SERVICE-MANUAL.NET...
Page 758 18. Return COVER 2 (5), and then close Engine Unit. 19. Return EXIT TRAY (1) and EXIT TRAY 2 (2). 20. Fix Bracket 26 (23) and Bracket 27 (24) with 1 screw (25). The tab portion will fit into the slit on the bottom of Bracket 27 (24). 21.
Page 759 22. Install Bracket 26 and Bracket 27 to the 3 screws (26). 23. Install Bracket 24 (27) and Bracket 25 (28) to the rear with 3 screws (29) each. 24. Turn the extension tray (30) on Print Tray Assy (31) completely. WWW.SERVICE-MANUAL.NET...
Page 760 25. Hook Tray 10 (32) on the beam of the hooking (33) in the center block. 26. Insert the other end of Tray 10 (32) to Bracket A (34). With pushing Bracket A (34) to the arrow direction, fix Plate 5 (35) and them together with 1 screw (36). 34 &...
Page 761 27. Hook Tray 4 (37: A) on the beam near Plate 5 (35). Hook the other end (B) to the beam near the extension tray. 28. Hook Tray 4 (38) on the beam near the extension tray in the third block from the outside. WWW.SERVICE-MANUAL.NET...
Page 762 29. Insert the other end of Tray 4 (38) to Bracket A (39). With pushing Bracket A (39) to the arrow direction, fix Plate 6 (40) and them together with 1 screw (41). 39 & 40 39 & 40 30. Hook Tray 9 (42: C) on the beam near the end of the extension tray in the outside small block. Push Tray 9 (42) to the arrow direction to fit the other end (D) to the beam.
Page 763 31. Mount Print Tray Assy (31) to the frame. Insert the hook parts (E) on Print Tray Assy (31) to the holes (43) on Bracket 24 (27) and Bracket 25 (28). 32. Fit the hook on the shorter side of Arm 2 (51: F) into the bottom dimple of Print Tray Assy. 33.
Page 764 4. Change of the Stack Setting 1. Turn on the main unit. 2. Press [? HELP] on the Home screen. 3. Press [Configuration 1]. 4. Configuration screen will appear. Press the arrow keys to move to page 2/4. WWW.SERVICE-MANUAL.NET...
Page 765 5. Change “4820/9148/8148 Stacking” from [Front Only] to the method of the use. 6. Press [OK]. Home screen will appear. 7. Stack Setting is completed. WWW.SERVICE-MANUAL.NET...
Page 766 AK-54G Setup Procedure (for connecting Auto Stacker K-54G) Ver.A.0 The following parts are included in “K-54G Connect Kit”. Bracket 29 Procedure Guide Plate Caller Screw (M4x20) Screw (M4x6) Bracket 30 1. Height Adjustment of Stand 1. Fasten the Stand (1) and the Adjust Frame (2) together at the second hole from the bottom of Adjust Frame (2). Fasten them together at the second hole from the bottom.
Page 767 2. Removal of Cover L & R, Upper Panel Assy and Guide Plate 1. Remove 3 screws (M4x6) (1) each to remove the Cover L (2) and the Cover R (3). NOTE In case of removing the Cover L (2), open the Cover L gently, disconnect the connector, and then remove the Cover L .
Page 768 3. Remove the Upper Panel Assy (6). 4. Remove 2 screws (M4x6) (7) with the Spacer and a screw (M4x6 with outer toothed washer) (8). 5. Remove 4 screws (M4x6) (9) with the Collar, and then remove the Guide Plate Lower (10). WWW.SERVICE-MANUAL.NET...
Page 769 3. Replacement of Gear 1. Loosen 2 screws (1), and then remove the Timing Belt (2). 2. Remove the Retaining Ring-E (E7) (3) and the Ball Bearing (4). 3. Remove a screw (M4x6 with outer toothed washer) (5) to remove the Bearing Bracket (6). WWW.SERVICE-MANUAL.NET...
Page 770 4. Slide the Roller Shaft (7) rightward, turn the Timing Pulley (8) inside out, and then put it back to the Roller Shaft (7). 5. Making reference to the former step 3-2 and 3-3, put back the Roller Shaft in reverse order. 6.
Page 771 7. Disconnect the connector (9) of the DC Motor. 8. Remove the Retaining Ring-E (10) and the Ball Bearing (11). 9. Remove 4 screws (M4x6 with outer toothed washer) (12) to remove the Drive Unit (13). WWW.SERVICE-MANUAL.NET...
Page 772 10. Remove 3 pieces of Retaining Ring-E (14) to remove the Gears. 11. Replace the white Gears with the black Gears (Low Speed Type) (15) which are included in the Accessory Kit of Auto Stacker. 12. Making reference to the former step 3-7 to 3-9, put back the Drive Unit in reverse order. NOTE Do not forget to connect the connector of the DC Motor.
Page 773 4. Switch Setting of Controller PCB Assy PW5420 Turn ON the Switch No. 1 (leftmost) on the Controller PCB Assy PW5420. 5. Attachment of Guide Plate, Upper Panel Assy and Cover L & R Making reference of “2. Removal of Cover L & R, Upper Panel Assy and Guide Plate”, attach the Guide Plate, the Upper Panel Assy, the Cover L and the Cover R in reverse order.
Page 774 6. Attachment of Guide Plate 1. Remove 2 screws (1) each to remove right and left Adjust Plate (2). (Adjust Plate (2) is not used.) 2. Remove 1 screw (M4x16) each to remove Bumper (4) on both sides. Install Collar (6) and Bumper (4) together with 1 screw (M4x20) (5) in the kit. 3.
Page 775 7. Attachment of Receiving PCB Assy and Transmission PCB Assy NOTE Turn off the main unit before operation. Unplug the power cord after an interval of 2 minutes for shutdown. 1. Remove 4 screws (1), loosen 4 screws (2) and remove the Cover 22 (3). 2.
Page 776 3. There is the Bracket 7 (8) inside of the main unit. Install the Bracket 29 (5: with Reception PCB) to the Bracket 7 (8) with one screw (9). Connect the cable (10) 4. There is the Case (11) inside of the main unit. Install the Bracket 30 (10: with Transmission PCB) to the Case (11) with 2 screws (12).
Page 777 9. Change of the Stack Setting and Service Mode Setting 1. Connect the Auto Stacker to the main unit. 2. Turn on the Auto Stacker and main unit. 3. Press [? HELP] on the Home screen. 4. Press [Configuration 1]. 5.
Page 778 6. Change “4820/9148/8148 Stacking” from [Front Only] to the method of the use. 7. Press [OK]. 8. Press [Service]. Input “8495107” and press [Enter]. WWW.SERVICE-MANUAL.NET...
Page 779 9. Service Configuration screen will appear. Press the arrow keys to move to page 5/7. On 5/7 page, press [Launch]. Use the arrow keys to open [5/7 IPS Setup]. 10. A confirmation dialog appears. Press [Yes]. Press [Login] to log in Service Mode. 11.
Page 780 12. Select [0061 Option Device] from “Item Code / Name” menu. Set the parameter to “1”. 13. Press [Apply] to validate the change. WWW.SERVICE-MANUAL.NET...
Page 781 14. Press [Back], [Logout] then [Close] to cancel Service Mode. 15. UI screen will display Home screen in a short time. WWW.SERVICE-MANUAL.NET...
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