Ricoh S-C3 F Service Manual
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Ricoh S-C3 F Service Manual

Ricoh S-C3 F Service Manual

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Model S-C3 F/SPF MODELS
Machine Code: B284/B288

SERVICE MANUAL

Sep. 29th, 2006
Subject to change

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  • Page 1: Service Manual

    Model S-C3 F/SPF MODELS Machine Code: B284/B288 SERVICE MANUAL Sep. 29th, 2006 Subject to change...

  • Page 2: Safety Notice

    Safety Notice  Important Safety Notices Prevention of Physical Injury 1. Be sure that the power cord is unplugged before disassembling or assembling parts of the copier or peripherals. 2. The wall outlet should be near the copier and easily accessible. 3.

  • Page 3: Laser Safety

    Safe and Ecological Disposal 1. Do not incinerate toner bottles or used toner. Toner dust may ignite suddenly if exposed to an open flame. 2. Dispose of used toner, developer, and organic photoconductors in accordance with local regulations. (These are nontoxic supplies.) 3.

  • Page 4: Symbols And Abbreviations

    Symbols and Abbreviations This manual uses several symbols and abbreviations. The meaning of those symbols and abbreviations is as follows: See or Refer to  Clip ring  E-ring  Screw  Connector  Clamp Short Edge Feed Long Edge Feed ...

  • Page 5: Table Of Contents

    TABLE OF CONTENTS Safety Notice..............................1  Important Safety Notices..........................1 Laser Safety..............................2 Symbols and Abbreviations..........................3 1. Installation Installation Cautions............................11 Installation Requirements..........................12 Environment..............................12 Machine Level..............................12 Minimum Operational Space Requirements.....................13 Power Requirements............................14 Copier................................15 Accessory Check............................15 Installation Procedure..........................15 Optional Hand Set............................22 Paper Tray Unit..............................25 Accessory Check............................25 Installation Procedure..........................25 Paper Tray Unit Heater............................27...
  • Page 6 Lithium Batteries............................45 Halogen-free Cable............................45 Special Tools and Lubricants...........................46 Exterior Covers and Operation Panel......................47 Rear Cover..............................47 Copy Tray..............................47 Operation Panel and Upper Covers......................48 Right Door..............................49 Bypass Tray..............................50 Platen Cover Sensor............................50 Scanner Unit..............................51 Exposure Glass............................51 Lens Block..............................51 Exposure Lamp, Lamp Stabilizer Board.....................52 Scanner Motor.............................53 Scanner HP Sensor............................54 Scanner alignment adjustment........................55...
  • Page 7 Paper End Sensor............................69 Registration Sensor............................69 Bypass Paper End Sensor...........................70 Bypass Feed Roller............................71 Bypass Feed Clutch and Friction Pad......................72 Paper Feed and Registration Clutches.......................73 Image Transfer..............................75 Transfer Roller..............................75 ID Sensor and Duplex Roller........................76 Discharge plate............................77 BICU and Controller Board..........................78 BICU................................78 Controller Board............................79 Other Replacements............................83 Duplex Motor...............................83 High-Voltage Power Supply Board ......................84...
  • Page 8 DF Feed Motor.............................96 DF Transport Motor.............................97 DF Feed Clutch.............................98 Adjusting Copy Image Area..........................99 Printing................................99 Scanning..............................101 DF Image Adjustment..........................104 4. Troubleshooting Service Call Conditions..........................107 Summary..............................107 Engine SC Code Descriptions........................107 GW SC Code Descriptions........................116 Electrical Component Troubleshooting......................129 Sensor/Switch Open Errors........................129 Blown Fuse Conditions..........................130 BICU LED Display............................131 5.
  • Page 9 Overview................................237 Component Layout............................237 Electrical Components..........................239 Paper Path..............................242 Drive Layout..............................243 Mainframe..............................243 ARDF................................244 Block Diagram: PCBs and Components......................245 Main PCBs..............................246 SBU (Sensor Board Unit)..........................246 Copy Process..............................248 Overview..............................248 Scanning.................................250 Overview..............................250 Scanner Drive............................251 Image Processing............................252 Overview..............................252 Image Processing Path..........................253 Original Modes............................253 Image Processing Steps for Each Mode....................256 Mode Adjustments.............................257 Laser Exposure...............................258 Overview..............................258...
  • Page 10 Overview..............................266 Development Bias............................267 Toner Supply..............................267 Toner Density Control..........................268 Toner Supply If Sensor Reading is abnormal ..................269 Detection of Toner Near End and Toner End ..................270 Drum Cleaning and Toner Recycling......................271 ARDF Operation............................272 Pick-Up and Separation..........................272 Clutch Operation............................272 Original Transport and Exit........................272 Paper Feed..............................275 Overview..............................275 Paper Feed Drive Mechanism........................276...
  • Page 11 AOF................................296 Timers.................................296 Recovery..............................296 GW Controller...............................297 Overview..............................297 Controller Functions...........................298 Scanner Functions.............................300 7. Specifications General Specifications..........................303 Copier................................303 Printer................................305 Scanner..............................306 ARDF................................307 Paper Tray Unit............................308 Supported Paper Sizes..........................309 Original Paper Sizes..........................309 Paper Feed..............................310 Machine Configuration..........................313 Mainframe (B284/B288)........................313 System Components..........................314...

  • Page 12: Installation

    1. Installation Installation Cautions • Before installing an optional unit, do the following: • Print out all messages stored in the memory, all user-programmed items, and a system parameter list. • If there is a printer option on the machine, print out all data in the printer buffer. •...

  • Page 13: Installation Requirements

    1. Installation Installation Requirements Environment –Temperature and Humidity Chart– • Temperature Range: 10°C to 32°C (50°F to 89.6°F) • Humidity Range: 15% to 80% RH • Ambient Illumination: Less than 1,500 lux (Do not expose to direct sunlight.) • Ventilation: Room air should turn over at least 3 times/hr/person •...

  • Page 14: Minimum Operational Space Requirements

    Installation Requirements Right to left: Within 5 mm (0.2") of level Minimum Operational Space Requirements Place the machine near the power source, providing clearance as shown. A: Front – 750 mm (29.6") B: Left – 100 mm (3.9") C: Rear – 105 mm (4.1") D: Right –...

  • Page 15: Power Requirements

    1. Installation • Actual minimum space requirement for left, rear, and right sides is 10mm (0.4") each, but note that this will not allow room for opening of the bypass tray, right door, platen cover, or ARDF unit. Power Requirements •...

  • Page 16: Copier

    Copier Copier Accessory Check Fax Model (B284)/ Printer/Scanner and Fax Model (B288) Description Q’ty NECR (-17) EU Safety Sheet (-67, -26) Paper Size Decal Model Name Plate - RIC,LAN, GES,INF (-29) 1 set Handset Bracket (-17) Screw for Handset Bracket (-17) Modular Cable (-17) Connecter Cover for TEL (-17) User Function Key Decal (-17, -29...
  • Page 17 1. Installation 1. Remove the all strips of tape. 2. Remove the bag [A], SMC and A3 sheet of paper on the exposure glass. 3. Remove the spacing wedge [B].
  • Page 18 Copier 4. Remove the three scanner lock pins. (A tag is hanging from each pin.) To remove: Grasp the base of the pin [C], turn the pin 90 degrees, and pull it down and out. 5. Remove the tags from the pins. 6.
  • Page 19 1. Installation 12. Remove the outer cap [I]. • Do not remove the inner cap [J]. 13. Load the bottle on the holder. • Do not forcefully turn the toner bottle on the holder. After you turn on the main power switch, the copier sets the bottle in place.
  • Page 20 Copier 16. Remove the padding [L]. 17. Pull each tabbed strip [M] out of the PCU with one hand, supporting the PCU with the other. • Do not pull both strips at the same time, as this could damage the PCU. 18.

  • Page 21: Interface Settings

    1. Installation 25. Install optional units (if any). 26. Attach the ferrite core [P] to the network cable when connecting the cable. 27. Attach the ferrite core to the telephone line as same manner step 26. 28. Connect the telephone line to the "LINE" jack. •...

  • Page 22: Copier Settings

    Copier Copier settings 1. Start the SP mode. 2. Select SP5-801-001 and execute the initialization. 3. Exit the SP mode, and then start the UP mode. 4. Select the "@Remote Service" ("User Tool" > "System Settings > Administrator Tools" > "Extended Security"...

  • Page 23: Optional Hand Set

    1. Installation Optional Hand Set Accessory Check Check that you have the components and accessories. Description Q’ty Handset Handset cradle Screws Handset manual • The handset bracket is not included in the optional handset kit. The bracket is provided as an accessory of the copier.
  • Page 24 Copier Installation Procedure 1. Attach the handset bracket [A] ( x 2). • The bracket is an accessory of the copier. 2. Remove the label [B] from the handset cradle [C]. 3. Attach the cradle to the bracket ( x 2). 4.
  • Page 25 1. Installation 6. Connect the cable [E] to the TEL jack at the left side of the copier.

  • Page 26: Paper Tray Unit

    Paper Tray Unit Paper Tray Unit Accessory Check Confirm that you have these accessories. Description Q’ty 1. Paper-size decals 1 sheet 2. Installation Procedure (for service person) 3. Installation Procedure (for user) Installation Procedure • Unplug the main machine's power cord before starting the following procedure. 1.
  • Page 27 1. Installation 3. Set the machine on the paper tray unit. 4. Remove the paper tray from the paper tray unit. 5. Load paper into the paper tray. Adjust the side and end fences as necessary. If loading 8 "x 14" paper, remove the end fence and set it into the special compartment.

  • Page 28: Paper Tray Unit Heater

    Paper Tray Unit Heater Paper Tray Unit Heater Accessory Check Confirm that you have the accessories listed below. Description Q’ty 1. Grounding wire 2. Relay harness 3. Clamps 4. Ferrite core 5. Heater fastening screws 6. PTU fastening screws 7. Grounding screw 8.

  • Page 29: Installation Procedure

    1. Installation Installation Procedure • Unplug the main machine's power cord before starting the following procedure. 1. Remove the paper tray unit from the copier if it is already installed. 2. Remove the paper trays from the copier and from the paper tray unit.
  • Page 30 Paper Tray Unit Heater 3. Remove the ground screw [1] at the rear of the paper tray unit. 4. Fasten the heater [2] and the supplied ground wire [3] to the paper tray unit ( x 3). Note that [1] is the ground screw you removed in the previous step and [4] and [5] are the two supplied heater fastening screws.
  • Page 31 1. Installation 7. Open the front door and remove the copy tray [7] (×1). 8. Close the front door. 9. Remove the memory card cover [8] ( x 1). 10. Remove the rear cover [9] ( x 5).
  • Page 32 Paper Tray Unit Heater 11. Remove the upper left cover [10]. 12. Remove the controller box [11] ( x 1,  x 5). 13. Remove the support bracket [12] ( x 3).
  • Page 33 1. Installation 14. Pass the heater harness through the hole [15] at the rear of the copier. 15. Pass relay harness [16] through the opening [17] (at the rear of the PSU) and through the other opening [15]. 16. Connect the relay harness to the heater's harness [18]. 17.
  • Page 34 Paper Tray Unit Heater 19. Push the ferrite core back so that it is over the heater's harness. 20. Wrap the heater's harness once around the ferrite core [20]. 21. Locate the ferrite core at the rear [24] of the copier behind the rear clamps. 22.
  • Page 35 1. Installation 33. Reassemble the copier. 34. Plug in the power cord, and check the operation.

  • Page 36: Controller Options

    Controller Options Controller Options Overview This machine has I/F card slots and SD card slots for optional I/F connections and applications. I/F Card Slot • Slot [A] is used for one of the optional I/F connections: (IEEE1284, IEEE802.11 (Wireless LAN) or Bluetooth).

  • Page 37: Postscript3 Installation

    1. Installation PostScript3 Installation • Unplug the machine power cord before starting the following procedure. Installation Procedure 1. Install the PostScript3 SD card into the slot 2 [A]. 2. Turn on the main power switch. 3. Print out the configuration page (User Tools/ Counter > Printer Features > List/ Test Print), and then check that this device is detected.
  • Page 38 Controller Options Component Check Description Q’ty Wireless Adapter Wireless LAN Card LAN Card Cover Caution Sheet Label Installation Procedure 1. Remove the interface cover [A] ( x 2). 2. Install the Wireless adaptor into the slot A [B] ( x 2). 3.

  • Page 39: Ieee 1284 Installation

    1. Installation 6. Print out the configuration page (User Tools/Counter > Printer Features > List/Test Print), and then check that this device is detected. If reception is poor, you may need to move the machine: • Make sure that the machine is not located near an appliance or any type of equipment that could generate a strong magnetic field.

  • Page 40: Bluetooth Installation

    Controller Options Installation Procedure 1. Remove the interface cover [A] ( x 2). 2. Install the IEEE 1284 board into interface slot A [B] ( x 2). 3. Turn on the main power switch. 4. Print out the configuration page (User Tools/Counter > Printer Features > List/Test Print), and then check that this device is detected.
  • Page 41 1. Installation Bluetooth Card Adapter Bluetooth Card Cover UL/FCC Sheet Caution Sheet Installation Procedure 1. Remove the interface cover [A] ( x 2). 2. Install the Wireless adaptor into interface slot A [B] ( x 2). 3. Install the Bluetooth card in the wireless adaptor. 4.

  • Page 42: Preventive Maintenance

    2. Preventive Maintenance PM Tables Reset the PM counter (SP7-804-001) after doing maintenance work. Key: AN: As necessary, C: Clean, R: Replace, I: Inspect Every 45k Every 90k NOTE OPTICS Reflector Optics cloth 1st mirror Optics cloth 2nd mirror Optics cloth 3rd mirror Optics cloth Platen cover...
  • Page 43 2. Preventive Maintenance Every 45k Every 90k NOTE Hot roller bearings Pressure-roller bushings Inlet guide Outlet guide Hot roller stripper pawls Thermistor Every 90k NOTE ARDF Separation roller Water or alcohol Pick-up roller Water or alcohol Feed roller Water or alcohol White plate Water or alcohol DF exposure glass...

  • Page 44: How To Clear The Pm Counter

    How to Clear the PM Counter How to Clear the PM Counter Reset the PM counter after your maintenance work. 1. Activate the SP mode. 2. Select SP7-804-001. 3. Press the EXECUTE key [A]. The message "Completed" is displayed when the program ends normally. An error message is displayed if the program ends abnormally.
  • Page 45 2. Preventive Maintenance...

  • Page 46: Replacement And Adjustment

    3. Replacement and Adjustment Precautions General • Turn off the main power switch and unplug the machine before starting replacement. Before turning off the main power switch, check that no mechanical component is operating. Mechanical components may stop out of their home positions if you turn off the main power switch while they are operating.

  • Page 47: Special Tools And Lubricants

    3. Replacement and Adjustment Special Tools and Lubricants Part Number Description Q’ty A1849501 Optics Adjustment Tools (2 pcs/set) 1 set A2929500 Test Chart – S5S (10 pcs/set) 1 set VSSM9000 Digital Multimeter – Fluke 87 N8036701 Flash Memory Card (4MB) N8031000 Case for Flash Memory Card A2579300...

  • Page 48: Exterior Covers And Operation Panel

    Exterior Covers and Operation Panel Exterior Covers and Operation Panel Rear Cover 1. Open the right door [A]. 2. Rear cover [B] ( x 5) Copy Tray • Make sure that the cables under the copy tray are in place before reassembling the copier. If these cables are caught between the copy tray and the inner cover, they may be severely damaged.

  • Page 49: Operation Panel And Upper Covers

    3. Replacement and Adjustment 1. Open the front door [A]. 2. Copy tray [B] ( x 1) Reassembling There are several cables under the front end of the copy tray. To set these cables in place, gently pull these cables to the left-hand side (toward the PSU) and hold them there as you attach the copy tray. Operation Panel and Upper Covers 1.

  • Page 50: Right Door

    Exterior Covers and Operation Panel 2. Rear cover (* "Rear Cover") 3. Slide the upper left cover [A] to the rear. 4. Rear scale [B] ( x 3) 5. Slide the upper right cover [C] to the rear. 6. Front left cover [D] ( x 2) 7.

  • Page 51: Bypass Tray

    3. Replacement and Adjustment Bypass Tray 1. Press the stopper rails [A] inward. Platen Cover Sensor 1. Rear cover (* "Rear Cover") 2. Rear scale (* "Operation Panel and Upper Covers") 3. Platen cover sensor [A] (× 1, hook)

  • Page 52: Scanner Unit

    Scanner Unit Scanner Unit To clean the mirrors and lenses, use a blower brush or wet cotton. Exposure Glass To clean the exposure glass, use alcohol or glass cleaner. 1. Rear cover (* "Rear Cover") 2. Rear scale, upper right cover (* "Operation Panel and Upper Covers") 3.

  • Page 53: Exposure Lamp, Lamp Stabilizer Board

    3. Replacement and Adjustment 1. Exposure glass (* "Exposure Glass") 2. Front left cover, operation panel (* "Operation Panel and Upper Covers") 3. Release the cable from the four clamps [A]. 4. Lens block [B] ( × 4, 1 flat cable) •...

  • Page 54: Scanner Motor

    Scanner Unit 1. Exposure glass (* "Exposure Glass") 2. Front left cover, operation panel (* "Operation Panel and Upper Covers") 3. Slide the first scanner to a position where the lamp and scanner are clear of the metal lids. 4. Disconnect the lamp connector [A]. 5.

  • Page 55: Scanner Hp Sensor

    3. Replacement and Adjustment 4. Scanner motor [B] ( × 3, 1 spring, 3 screw holders,  × 1) Reinstalling When reinstalling, fasten the screws loosely, set the spring in place, and tighten up the screws. Scanner HP Sensor 1. Rear cover (* "Rear Cover") 2.

  • Page 56: Scanner Alignment Adjustment

    Scanner Unit 4. Scanner HP sensor [A] ( × 1, hook) • Move the first scanner from the home position if you have difficulty removing the sensor. Scanner alignment adjustment 1. Rear cover (* "Rear Cover") 2. Rear scale, upper right cover, front left cover, operation panel (* "Operation Panel and Upper Covers") 3.
  • Page 57 3. Replacement and Adjustment 6. Insert the two optics adjustment tools [A], and adjust the scanners as necessary so that the tools go through all four holes. 7. Tighten the two screws that you loosened at step 2 above, so that the belts are firmly clamped into place.

  • Page 58: Fusing

    Fusing Fusing Fusing Unit • Before handling the fusing unit, make sure that the unit is cool enough. The fusing unit can be very hot. 1. Copy tray (* "Copy Tray") 2. Open the right door. 3. Connector cover [A] ( x 1) •...

  • Page 59: Exit Sensor

    3. Replacement and Adjustment Exit Sensor 1. Fusing unit (* "Fusing Unit") 2. Exit sensor [A] ( × 1) Hot Roller Stripper Pawls • Take care not to damage the hot roller stripper pawls and the tension springs.

  • Page 60: Hot Roller And Fusing Lamp

    Fusing 1. Fusing unit (* "Fusing Unit") 2. Separate the fusing unit into two sections: the hot roller section [A] and the pressure roller section [B] ( x 2). After removing the screws, lower the pressure roller section about halfway and then slide it toward the front side to detach it.
  • Page 61 3. Replacement and Adjustment 1. Hot roller stripper pawls and spacers (* " Hot Roller Stripper Pawls") 2. Hot roller assembly [A] ( x 2) 3. Fusing lamp [B] • When reassembling, check that the direction of the fusing lamp is correct. 4.

  • Page 62: Thermoswitches And Thermistor

    Fusing Thermoswitches and Thermistor 1. Hot roller assembly (* "Hot Roller & Fusing Lamp") 2. Thermoswitches ( x 2 for each) 3. Thermistor ( x 1) Reassembling Make sure of the following: • That the thermistor is in contact with the hot roller. •...

  • Page 63: Pressure Roller

    3. Replacement and Adjustment Pressure Roller 1. Separate the fusing unit into two sections (* "Hot Roller Stripper Pawls"). 2. Fusing entrance guide [A] 3. Two springs [B][C] 4. Two pressure arms [D][E] 5. Bushing [F] 6. Pressure roller [G]...

  • Page 64: Checking The Nip Band

    Fusing Checking the NIP band You can check the nip band to see if the fusing unit is in a good condition–especially, if the hot roller and pressure roller are correctly installed. 1. Activate the SP mode. 2. Select SP1-109-001. 3.

  • Page 65: Pcu And Quenching Lamp

    3. Replacement and Adjustment PCU and Quenching Lamp When handling the photo conductor unit (PCU), use caution: • Do not touch the OPC drum with your bare hands. When the OPC drum is unclean, clean it with dry cloth, or clean it with wet cotton and wipe it with dry cloth. •...

  • Page 66: Quenching Lamp

    PCU and Quenching Lamp 5. When having installed a new PCU, remove the Styrofoam and tags (* "Installation Procedure" in the chapter "Installation"). Initialization After you turn on the main power switch, the copier automatically initializes the new PCU. When the copier is executing initialization, it is important that you: •...

  • Page 67: Exhaust Fan And Main Motor

    3. Replacement and Adjustment Exhaust Fan and Main Motor Exhaust Fan 1. Rear cover (* "Rear Cover") 2. Exhaust fan [A] ( x 2,  x 1) Reassembling Make sure that the arrow [B] on the frame points to the rear side. The arrow indicates the direction of airflow.

  • Page 68: Main Motor

    Exhaust Fan and Main Motor Main Motor 1. Rear cover (* "Rear Cover") 2. High-voltage power supply board (* "High-Voltage Power Supply Board") 3. Ground plate [A] ( x 1) 4. Main motor with the gear cover [B] ( x 1,  x 7,  x 2, 2 bushings) 5.

  • Page 69: Paper Feed

    3. Replacement and Adjustment Paper Feed Paper Feed Roller and Friction Pad When handling the paper tray or the paper feed roller, use caution: • Do not touch the surface of paper feed rollers. • To avoid paper jams, correctly set the side and end fences in the paper tray. 1.

  • Page 70: Paper End Sensor

    Paper Feed Paper End Sensor 1. Paper tray 2. Open the right door. 3. PCU (* ”PCU") 4. Paper end sensor [A] ( x 1) Registration Sensor 1. Paper tray 2. Open the right door. 3. Open the paper guide [A]. •...

  • Page 71: Bypass Paper End Sensor

    3. Replacement and Adjustment 4. Registration sensor feeler [B] 5. Registration sensor [C] ( x 1) • Disconnect the connector (CN127 [D]) if you have difficulty removing the registration sensor. Bypass Paper End Sensor 1. Right door (* "Right Door") 2.

  • Page 72: Bypass Feed Roller

    Paper Feed Bypass Feed Roller 1. Right door (* "Right Door") 2. Turn the feed roller housing upside down [A] ( x 2). 3. Feed roller shaft [B] (2 snap pawls [C], 1 spacer [D]) 4. Bypass feed roller [E]...

  • Page 73: Bypass Feed Clutch And Friction Pad

    3. Replacement and Adjustment Bypass Feed Clutch and Friction Pad 1. Rear cover (* "Rear Cover") 2. Right door (* "Right Door") 3. Disconnect the bypass feed clutch connector [A] (CN93). 4. Bypass feed roller housing [B] ( x 2) 5.

  • Page 74: Paper Feed And Registration Clutches

    Paper Feed Paper Feed and Registration Clutches 1. Paper tray 2. High-voltage power supply board (* "High-Voltage Power Supply Board") 3. Ground plate [A] ( x 1) 4. Gear cover [B] ( x 1,  x 7,  x 2, 2 bushings) •...
  • Page 75 3. Replacement and Adjustment 5. Ground plate [C] ( x 1) 6. Slowly push the clutch holder [D] and remove the registration clutch [E] ( x 1,  x 1). 7. Paper feed clutch [F]...

  • Page 76: Image Transfer

    Image Transfer Image Transfer Transfer Roller • Do not touch the transfer roller with your bare hands. • Do not scratch the transfer roller. The transfer roller is easily damaged. 1. Right door (* "Right Door") 2. Raise the levers [A][B] at the ends of the image transfer roller. 3.

  • Page 77: Id Sensor And Duplex Roller

    3. Replacement and Adjustment ID Sensor and Duplex Roller 1. Right door (*"Right Door") 2. Lower guide [A] 3. Idle roller holders [B][C] 4. Idle roller [D] 5. Roller guide [E] 6. Transfer unit [F] 7. One-way gear [G] ( x 1) 8.

  • Page 78: Discharge Plate

    Image Transfer 9. ID sensor [I] ( x 1) Discharge plate 1. Right door (* "Right Door") 2. Discharge plate [A]...

  • Page 79: Bicu And Controller Board

    3. Replacement and Adjustment BICU and Controller Board • Turn off the main power switch and unplug the machine before starting replacement. • Before turning off the main power switch, check that no mechanical component is operating. Mechanical components may stop out of their home positions if you turn off the main power switch while they are operating.

  • Page 80: Controller Board

    BICU and Controller Board 3. Ground plate [B] ( x 2) 4. BICU [C] (all , 2 flat cables,  x 6) • When replacing the BICU, remove the NVRAM [D] from the board. Install the NVRAM to the new board. 5.
  • Page 81 3. Replacement and Adjustment 3. Remove the printer/scanner SD card [A]. 4. Remove the two I/F covers [B] (or I/F options if they have been installed) ( x 2 each).
  • Page 82 BICU and Controller Board 5. Remove the relay connector [C]. 6. Remove the DIMM [D] if it has been installed. 7. Remove the controller board with the rails [E] ( x 5).
  • Page 83 3. Replacement and Adjustment 8. Release the hooks [F], and then pull out the rails [G]. 9. Controller board • When replacing the controller board, remove the NVRAMs from the board. Install the NVRAMs to the new board. When replacing the NVRAM on the controller board 1.

  • Page 84: Other Replacements

    Other Replacements Other Replacements Duplex Motor 1. Rear cover (* "Rear Cover") 2. Duplex motor [A] ( x 1,  x 2)

  • Page 85: High-Voltage Power Supply Board

    3. Replacement and Adjustment High-Voltage Power Supply Board 1. Rear cover (* "Rear Cover") 2. High-voltage power supply board [A] (all ,  x 4) • Remove the insulating sheet [B] if you are going to remove the contact-release solenoid (* "Contact-Release Solenoid") or the gear cover (* "Paper Feed and Registration Clutches").

  • Page 86: Psu Assembly

    Other Replacements PSU Assembly 1. Open the front door. 2. Copy tray (* "Copy Tray") 3. PSU assembly [A] ( x 4,  x 8) 1. Open the front door. 2. Copy tray (* "Copy Tray")

  • Page 87: Contact-Release Solenoid

    3. Replacement and Adjustment 3. PSU [B] ( x 4,  x 6) Contact-Release Solenoid 1. Rear cover (* "Rear Cover") 2. High-voltage power supply board (* "High-Voltage Power Supply Board") 3. Contact-release solenoid [A] (1 spring,  x 1)

  • Page 88: Toner Supply Clutch

    Other Replacements Toner Supply Clutch 1. Toner bottle holder 2. Copy tray (* "Copy Tray") 3. Rear cover (* "Rear Cover") 4. Disconnect the connector on C19 on the BICU. 5. Push the clutch coupler [A] to the rear side, and remove the clip ring [B] from the back of the copier. 6.
  • Page 89 3. Replacement and Adjustment Procedure 1. Open the right door [A]. 2. Remove the rear cover [B] ( x 5). 3. Controller box cover [C] ( x 12) 4. FCU [D] ( x 3,  x 1) 5. When you replace the FCU board, remove the MBU board from the old FCU board and install it on the new FCU board.

  • Page 90: Laser Unit

    Laser Unit Laser Unit • Turn off the main power switch and unplug the copier before starting replacement. The laser beam can damage your eyes severely. • Do not touch the screws on the LD board on the LD unit. Do not try to adjust any part of the LD unit. The LD unit is precision adjusted before shipment.

  • Page 91: Ld Unit And Polygon Mirror Motor

    3. Replacement and Adjustment 3. Laser unit [A] ( x 3,  x 2) Reassembling Make sure that the cable [B] passes under the unit. LD Unit and Polygon Mirror Motor 1. Laser unit (* "Laser Unit") 2. Laser unit cover [A] ( x 2, 1 grounding plate) 3.

  • Page 92: Ardf

    ARDF ARDF ARDF 1. Rear cover (* "Rear Cover") 2. Remove the DF interface cables [A] ( x 2, hook x 2). 3. Remove the ground cable [B] ( x 1). 4. Remove the stud screw [C]. 5. Remove the ARDF [D].

  • Page 93: Df Rear Cover

    3. Replacement and Adjustment DF Rear Cover 1. Open the ARDF [A]. 2. Release the three hooks 3. Open the DF left cover [B]. 4. Open the original tray [C]. 5. DF rear cover [D] ( x 1, hook x 4) Original Feed Unit 1.

  • Page 94: Separation Roller

    ARDF 2. Original feed unit [A] ( x 1) Separation Roller 1. Open the DF left cover. 2. Original feed unit (* "Original Feed Unit") 3. Separation roller cover [A] (hook x 2) 4. Separation roller stopper [B] (hook) 5. Separation roller [C] DF Drive Board 1.

  • Page 95: Original Set And Df Inverter Sensor

    3. Replacement and Adjustment 2. DF drive board [A] ( x 2,  x 4, ground cable x 1) Original Set and DF Inverter Sensor 1. Open the DF left cover. 2. Original feed unit (* "Original Feed Unit") 3. DF feed clutch (* "DF Feed Clutch") 4.

  • Page 96: Df Registration And Df Exit Sensor

    ARDF DF Registration and DF Exit Sensor 1. Open the DF left cover. 2. Original feed unit (* "Original Feed Unit") 3. DF feed clutch (* "DF Feed Clutch") 4. Original feed-in guide plate (* "Original Set and Inverter Sensor") 5.

  • Page 97: Df Feed Motor

    3. Replacement and Adjustment 10. Inverter lower guide plate [D] (hook x 2) 11. DF registration sensor [E] ( x 1, hook) 12. DF exit sensor [F] ( x 1, hook) DF Registration Sensor Reflector Clean the SD registration sensor reflector [A] as necessary. DF Feed Motor 1.

  • Page 98: Df Transport Motor

    ARDF 2. Inner cover [A] ( x 1) 3. DF feed motor with bracket [B] ( x 2,  x 4,  x 3, timing belt) 4. DF feed motor [C] ( x 2) DF Transport Motor 1. DF rear cover (* "DF Rear Cover") 2.

  • Page 99: Df Feed Clutch

    3. Replacement and Adjustment 4. DF transport motor [B] ( x 2) DF Feed Clutch 1. Open the DF left cover. 2. DF front cover [A] ( x 1) 3. Bracket [B] ( x 1,  x 1) 4. DF feed clutch [C] ( x 1)

  • Page 100: Adjusting Copy Image Area

    Adjusting Copy Image Area Adjusting Copy Image Area Adjust the copy image area under any of the following conditions: 1. After clearing engine data (SP5-801-002 or SP5-998-001). 2. After replacing any of the following components: • First scanner or second scanner •...
  • Page 101 3. Replacement and Adjustment Specification 0 ± 2 mm SP1-001-001 (All Trays) 0 ± 2 mm SP1-001-002 (By-pass) 0 ± 4 mm SP1-001-003 (Duplex) 5. Adjust the leading edge registration (SP1-001). 6. Measure the distance between the side edge of the image area and the side edge of the paper [B]. Specification 0 ±...

  • Page 102: Scanning

    Adjusting Copy Image Area 3. Adjust the blank margin (SP2-101). Specification 2 ± 1.5 mm SP2-101-001 (Leading Edge) [A] SP2-101-002 (Trailing Edge) [B] 2 +2.5/-1.5 mm 2 ± 1.5 mm SP2-101-003 (Left Side) [C] SP2-101-004 (Right Side) [D] 2 +2.5/-1.5 mm •...
  • Page 103 3. Replacement and Adjustment 2. Make a copy. 3. Measure the distance between the leading edge of the image area and the leading edge of the paper [A]. • The diagram shows the paper on the copy tray. Note that the paper is output with the face down. 4.
  • Page 104 Adjusting Copy Image Area Adjusting Magnification 1. Place the test chart on the exposure glass. Make sure the test chart is aligned with the rear and left scales on the exposure glass. 2. Make a copy. 3. Compare the copy with the original. 4.

  • Page 105: Df Image Adjustment

    3. Replacement and Adjustment • Replacing the lens block • Executing the memory clear (SP5-801-002 [basic model], SP5-998-001 [other models]). 1. Place 10 sheets of new A4 paper on the exposure glass. 2. Close the platen cover. 3. Activate the SP mode. 4.
  • Page 106 Adjusting Copy Image Area (The diagram shows the paper on the copy tray. Note that the paper is output with the face down.) 5. Adjust the side-to-side registration (S to S/Front Regist: SP6-006-001, S to S/Rear Regist: SP6-006-004). The image area moves to the rear side of the copier when you specify a larger value. 6.
  • Page 107 3. Replacement and Adjustment...

  • Page 108: Troubleshooting

    4. Troubleshooting Service Call Conditions Summary There are four levels of service call conditions. Level Definition Reset Procedure To prevent possible damage, the machine does not Activate the SP mode, and turn the operate until the service representative resets the SC main power switch off and on.
  • Page 109 4. Troubleshooting Symptom Possible Cause Definition • Defective exposure lamp connector • Unclean scanner mirror • Scanner mirror out of position • Defective SBU board • Defective SBU connector • Lens block out of position • Incorrect position or width of white plate scanning (* SP4-015) Scanner home position error 1 •...
  • Page 110 Service Call Conditions Symptom Possible Cause Definition • The automatic SBU adjustment has failed to correct the black level ten times at the PGA adjustment. • The automatic SBU adjustment has failed to correct the black level ten times at the offset adjustment. SBU white/black level correction error •...
  • Page 111 4. Troubleshooting Symptom Possible Cause Definition • Inconsistency between the BICU The BICU does not receive the memory firmware and the controller firmware address report from the controller within • Defective BICU one minute. • Defective controller Charge roller current leak •...
  • Page 112 Service Call Conditions Symptom Possible Cause Definition TD sensor error The BICU detects the TD sensor outputting • Defective TD sensor extraordinary voltage (less than 0.2 V or • Loose connection of the PCU more than 4.0 V) 10 times consecutively. Development bias leak •...
  • Page 113 4. Troubleshooting Symptom Possible Cause Definition The main motor does not reach its operation speed within 0.7 second. Or, • Overload the main motor remains out of its operation • Defective main motor speed for 0.7 second after reaching the operation speed.
  • Page 114 Service Call Conditions Symptom Possible Cause Definition While the fusing lamp is on, the fusing • Defective thermistor temperature varies 50°C or more within • Incorrect installation of the thermistor one second; and this occurs two • Defective power supply unit consecutive times.
  • Page 115 4. Troubleshooting Symptom Possible Cause Definition The ADF continues to send the FGATE • Defective ADF connector signal for more than 60 seconds after the • Defective SBU board ADF starts scanning. Mechanical total counter error • Defective mechanical total counter The polling module does not detect the •...
  • Page 116 Service Call Conditions Symptom Possible Cause Definition The controller of the optional printer/ scanner is installed to one of the following models: • The MFP model • The copier/facsimile model • The printer/scanner/copier model NVRAM error • Defective NVRAM • Loose connection between the BICU An error occurs during engine NVRAM and the NVRAM check.

  • Page 117: Gw Sc Code Descriptions

    4. Troubleshooting GW SC Code Descriptions SC6xx Symptom Possible Cause/Countermeasure Definition CSS communication error The machine tries to communicate with • Communication error on the public one of the terminals of a relevant service telephone network (logged only; the center. → An error signal returns. machine can still operate) MF accounting device error 1 The machine sends a data frame.
  • Page 118 Service Call Conditions Symptom Possible Cause/Countermeasure Definition The SD card or the file of the expanded authentication module is broken. 2. Install the DESS module. There is no DESS module in the machine. Version error -002 The version of the expanded 1.
  • Page 119 4. Troubleshooting Symptom Possible Cause/Countermeasure Definition The unexpected error occurs when the modem (Cumin-M) tries to call the center • Software bug. with a dial up connection. Program execution error -002 Same as SC651-001. • Software bug. Engine startup error Just after the main power is turned on or •...
  • Page 120 Service Call Conditions • Defective RAM DIMM • Defective SD card in slot 1 (lowest slot) • Defective controller • Software error System completely down 1. Check and/or replace the RAM DIMM. 2. Check and/or replace the SD card in slot 1 (lowest slot).
  • Page 121 4. Troubleshooting [0001-0015] [000A-000D]: Detailed error code • Defective CPU device During the boot monitor program and • Defective boot monitor program or self-diagnostic, any exception or cut-in self-diagnostic program are not supposed to happen. If these 1. Replace the controller board. happen, it is defined as SC.
  • Page 122 Service Call Conditions • Defective CPU devices The pipeline clock frequency rate is • Mode bit data error, which is used for different from the prescribed value. initializing CPU. 1. Replace the controller board. [0702]: Detailed error code • Insufficient CPU cache The result when the program is •...
  • Page 123 4. Troubleshooting 1. Replace controller board. SHM register check error • Defective bus connection Failed to initialize or could not read [0B10] connection bus. Data in SHM register • Defective SHM incorrect. 1. Replace controller board. Timer error between ASIC and CPU •...
  • Page 124 Service Call Conditions [1501]: Clock error • RTC defective • An RTC device is recognized, and the difference between the RTC • NVRAM without RTC installed device and the CPU exceeds the • Backup battery discharged defined limit. 1. Replace the NVRAM with another •...
  • Page 125 4. Troubleshooting All areas of the ROM DIMM are • Defective ROM DIMM checked. If the check sum of all programs stored in the ROM DIMM is 1. Replace the ROM DIMM. incorrect, this SC code is displayed. Self-diagnostic Error: Optional RAM Verification error (Slot 1) •...
  • Page 126 Service Call Conditions Some illegal data is found in the card. • Defective wireless card Wireless card connection board error An error is detected in the wireless LAN • Defective wireless card connection card or bluetooth card connection board board. USB I/F Error •...
  • Page 127 4. Troubleshooting The address book in the hard disk is accessed. → An error is detected in the address book data; address book data • Data corruption is not read; or data is not written into the • Defective hard disk address book..
  • Page 128 Service Call Conditions The software attempted to perform an unexpected operation. NOTE: When this error occurs, the file name, address, and data will be stored • Software defective in NVRAM. This information can be • Internal parameter incorrect checked by using SP7-403. See the •...
  • Page 129 4. Troubleshooting 1. Check the setting of SP5875-001. If the setting is set to "1 (OFF)", change it to "0 (OFF)".

  • Page 130: Electrical Component Troubleshooting

    Electrical Component Troubleshooting Electrical Component Troubleshooting Sensor/Switch Open Errors Sensor Connector Message Remarks CN127 Registration Sensor Paper jam CN129 Paper End Sensor Load paper CN130 Bypass Paper End The machine cannot detect paper on (None) Sensor the bypass tray. CN128 Paper Path Sensor Paper jam CN128...

  • Page 131: Blown Fuse Conditions

    4. Troubleshooting Sensor Connector Message Remarks DF CN103 Paper jam DF Original Set Sensor Sensor (None) Originals are not detected. DF CN103 DF Registration Paper jam Sensor Originals are correctly transported. DF CN103 Paper jam Inverter Sensor (None) DF CN103 Exit Sensor Paper jam CN114...

  • Page 132: Bicu Led Display

    Electrical Component Troubleshooting BICU LED Display Number Function LED2 LED2 blinks in normal operation.
  • Page 133 4. Troubleshooting...

  • Page 134: Service Tables

    5. Service Tables Service Program • Do not let the user access the SP mode or the SSP mode. Only service representatives are allowed to access these modes. The machine operation is NOT guaranteed after any person other than service representatives accesses the SP mode.

  • Page 135: Copier Service Program Mode Tables

    5. Service Tables Selecting Programs • When a blinking underscore (or several blinking underscores) is displayed, you can type a number from the numeric keypad [D]. • When the sign “/OK” [A] is displayed upper right corner, you can scroll through the menu by pressing the left-arrow key [B] or the right-arrow key [C].
  • Page 136 Service Program • Brackets ([ ]): The brackets enclose the setting rage, default value, and minimum step with unit ([Minimum to Maximum / Default / Step]). SP1-XXX (Feed) 1001* Leading Edge Registration [–9.0 to 9.0 / 0.0 / 0.1 mm/step] 1001 1 All Trays Adjusts the leading-edge registration (* "Adjusting 1001 2 By-pass...
  • Page 137 5. Service Tables Idling time Shorter Longer Fusing quality Lower Higher Fusing Temperature Adjustment 1105* Adjusts the target fusing temperature. Note that the thermistor is at the center of the hot roller. 1105 1 Warm Up-Center [140 to 180 / 160 / 1°C/step] 1105 3 Standby-Center [140 to 160 / 150 / 1°C/step] 1105 5 Copying-Center...
  • Page 138 Service Program 1110* Fan Control Timer [30 to 60 / 30 / 1 s/step] Specifies the fan control time. The fan motor keeps its operating speed for the specified 1110 1 time before changing the speed or stopping. The fan control timer prevents the exhaust fan from suddenly stopping.
  • Page 139 5. Service Tables Adjusts the width of the erased area (* "Adjusting Copy 2101* Erase Margin Adjustment Image Area" in the section "Replacement and Adjustment"). [0.0 to 9.0 / 3.0 / 0.1 mm/step] 2101 1 Leading edge Specification: 2 ± 1.5 mm [0.0 to 9.0 / 4.0 / 0.1 mm/step] Trailing Specification: 2 +2.5/–1.5 mm...
  • Page 140 Service Program 2214 Developer Initialization Initializes the TD sensor toner supply target voltage and the TD sensor gain value. Execute 2214 1 this SP replacing the developer or the TD sensor. 2221 ID Sensor Error Analysis (* "ID Sensor Error Analysis (SP2-221)") 2221 1 Vsg Displays the Vsg value.
  • Page 141 5. Service Tables 2802 Forced Developer Churning Initializes the developer and checks the TD sensor output (Vt). The machine mixes the developer for 2 minutes while reading and displaying the Vt value. The machine does not 2802 1 initialize the TD sensor output. If the machine has not been used for a long period, prints may have a dirty background.
  • Page 142 Service Program Adjusts the toner supply time. The toner supply motor remains on for the specified time. To 2922 1 validate this setting, select “0” in SP2-921-001. Specify a greater value if the user tends to make many copies having high proportions of solid black image areas. 2926* Standard Vt [0.00 to 5.00 / 2.50 / 0.01 V/step] DFU...
  • Page 143 5. Service Tables Cleans or does not clean the transfer roller before each job. Select “1” if the backside of 2996 1 the paper becomes unclean when output. Note that the copier takes a longer time to output the first copy when you select “1”. If you select “0”, the transfer roller is never cleaned. 2998* Main Scan Magnification [–0.5 to +0.5 / 0.0 / 0.1%/step]...
  • Page 144 Service Program 4013 Scanner Free Run 4013 1 Conducts the scanner free run with the exposure lamp on. 4015* White Plate Scanning Start position [–3.0 to +6.0 / 0.0 / 0.1 mm/step] 4015 1 Adjusts the scanning start position on the white plate. The base value is 17.8 mm from the scanner home position.
  • Page 145 5. Service Tables 4623 SBU Offset-Result 4623 1 EVEN 4623 2 ODD [0 to 255 / 0 / 1 /step] 4623 3 RED Displays the result value of the offset adjustment in the SBU. 4623 4 GREEN 4623 5 BLUE 4628 SBU Gain-Result 4628 1 EVEN...
  • Page 146 Service Program 4642 SBU Offsetpre-Loop 4642 1 EVEN 4642 2 ODD [0 to 3 / 0 / 1 /step] 4642 3 RED Displays the number of the pre-offset adjustment in the SBU. 4642 4 GREEN 4642 5 BLUE 4646 SBU Adj Error 4646 1 Offsetpre-Mono 4646 2 Offsetpre-Color 4646 3 Offset-Mono...
  • Page 147 5. Service Tables 4658 5 BLUE 4685* Gray Balance-Book 4685 1 RED [128 to 383 / 256 / 1 /step] 4685 2 GREEN Adjusts the coefficient of the gray balance adjustment for the book scanning. 4685 3 BLUE 4686* Gray Balance-DF 4686 1 RED [128 to 383 / 256 / 1 /step] 4686 2 GREEN...
  • Page 148 Service Program 4658 3 RED 4658 4 GREEN 4658 5 BLUE 4902* Exposure Lamp ON [0: OFF / 1: ON] Turns the exposure lamp on or off. To turn on the exposure lamp, specify “1”; to turn it off 4902 1 specify “0”.
  • Page 149 5. Service Tables Scanner (Mono) [0 to 4 / 0 / 1] Selects which mode the settings from SP4-922 to SP4-932 are used for. 0 = None, 1 = Text 1, 2 = Text 2, 3= Photo 1, 4 = Photo 2 Scanner (Color) [0 to 2 / 0 / 1] Selects which mode the setting of SP4-935 is used for.
  • Page 150 Service Program 1: No removal applied. 2 to 5: Removal applied at the level specified here. The higher the setting (level), the less clear the image will become (more texture removal). This setting is only applied to the originals in SP4-921. 001 Copy 002 Fax [0 to 6 / 0 / 1/step]...
  • Page 151 5. Service Tables 001 Copy 002 Fax 003 Scanner Sharpness-Solid [–2 to 2 / 0 / 1/step] 4931* Adjust the clarity. This setting is only applied to the originals in SP4-921. 001 Copy 002 Fax 003 Scanner Sharpness-Low ID [–2 to 2 / 0 / 1/step] 4932* Adjust the clarity.
  • Page 152 Service Program Sub Scan MTF Strength [0 to 5 / 0 / 1/step] Adjust the MTF strength for the sub scan. This setting is only activated for the specified mode with SP4-921-004. 0: 1, 1: 1/32, 2: 1/16, 3: 1/8, 4: 1/4, 5: 1/2 Smooth Level [0 to 2 / 0 / 1/step] Adjust the smooth level.
  • Page 153 5. Service Tables 0: 1, 1: 1/32, 2: 1/16, 3: 1/8, 4: 1/4, 5: 1/2 Smooth Level [0 to 7 / 0 / 1/step] Adjust the smooth level. This setting is only activated for the specified mode with SP4-921-004. 0: None, 1: Level 1 to 7: Level 7 Brightness [0 to 255 / 128 / 1/step] Adjust the brightness level.
  • Page 154 Service Program Selects whether mm or inches are used in the display. • After selecting the number, you must turn the main power switch off and on. Europe/Asia model: [0: mm / 1: inch] American model: [0: mm / 1: inch] [0 to 2 / 0 / 1 /step] 0: 1 counter (Total) 5045*...
  • Page 155 5. Service Tables 0: No 1: Yes. If “1” is selected, the customer will be able to input a non-standard paper size using the UP mode. 5113 Optional Counter Type This program specifies the counter type. 0: None 1: Key card (RK 3, 4) 001 Optional Counter Type 1 2: Key card (down) 3 to 10: (Japan only)
  • Page 156 Service Program 5121* Counter Up Timing [0 = Feed In / 1 = Exit] Selects the count-up timing. • 0 = Feed: At each paper feed 5121 1 • 1= Exit: At each paper exit 5150 By-pass Long Paper [0 = OFF / 1 = ON] Determines whether the transfer sheet from the by-pass tray is used or not.
  • Page 157 5. Service Tables EU :+ 60 (Paris) CH :+480 (Peking) TW :+480 (Taipei) AS :+480 (Hong Kong) 002 Time Difference [-1440 to 1440 / Area / 1 min./step ] 5307 Summer Time [ 0 or 1 / NA, EU, ASIA / 1 /step] 0: Disabled ON/OFF 1: Enabled...
  • Page 158 Service Program There are 8 digits in this SP. 1st and 2nd digits: The month. [1 to 12] 3rd digit: The week of the month. [0 to 5] 4th digit: The day of the week. [0 to 6 = Sunday to Saturday] 5th and 6th digits: The hour.
  • Page 159 5. Service Tables SDK3 Certification [ 0 to 255 / 0 / 1 /step] DFU Method 5404 User Code Clear Clears the counts for the user codes assigned by the key operator to restrict the use of the machine. Press [Execute] to clear. 5501 PM Alarm Interval [ 0 to 9999 / 0 / 1 /step]...
  • Page 160 Service Program 003 Toner 0: Off, 1: On, 005 Drum 0: Off, 1: On, 128 Interval :Others 132 Interval :A3 133 Interval :A4 134 Interval :A5 141 Interval :B4 [250 to 10000 / 1000 / 1 /step] 142 Interval :B5 160 Interval :DLT 164 Interval :LG 166 Interval :LT...
  • Page 161 5. Service Tables Sets the length of time the door remains open before the machine initiates a call. This setting is enabled only when SP5508 004 is set to 1. SC/Alarm Setting 5515 With @Remote in use, these SP codes can be set to issue an SC call when an SC error occurs. If this SP is switched off, the SC call is not issued when an SC error occurs.
  • Page 162 Service Program Copier Clears the copy application settings. Clears the fax application settings. Printer Clears the printer application settings. Scanner Clears the scanner application settings. GWWS/NFA Delete the netfile application management files and thumbnails, and initializes the job login Initializes the system default and interface settings (IP address also), SmartNetMonitor for Admin, WebImageMonitor settings, and the TELNET settings.
  • Page 163 5. Service Tables SRM Memory Clr Initializes the SRM (System Resource Manager) settings. Initializes the LCS (Log Count Service) settings. 5802 Machine Free Run [0 or 1 / 0 / - ] 0: No, 1: Yes Conducts machine free run (including the scanner unit). Set "1" and then press “” key. 5802 1 Press “”...
  • Page 164 Service Program Facsimile Sets the fax or telephone number for a service representative. This number is printed on the Counter List. This can be up to 20 characters (both numbers and alphabetic characters can be input). Supply Use this to input the telephone number of your supplier for consumables. Enter the number and press"StringIn"...
  • Page 165 5. Service Tables 0: Uses the RCG certification 1: Does no use the RCG certification Specifies the connect timeout interval when calling the RCG. 008 RCG Connect Timeout [1 to 90 / 10 / 1 second/step] Specifies the write timeout interval when calling the RCG. 009 RCG Write Timeout [1 to 100 / 60 / 1 second/step] Specifies the read timeout interval when calling the RCG.
  • Page 166 Service Program HTTP Proxy Host This SP sets the address of the proxy server used for communication between embedded RCG-N and the gateway. Use this SP to set up or display the customer proxy server address. The address is necessary to set up embedded RCG-N. •...
  • Page 167 5. Service Tables The certification update is completed and the GW URL is being notified of the successful update. The certification update failed, and the GW URL is being notified of the failed update. The period of the certification has expired and a new request for an update is being sent to the GW URL.
  • Page 168 Service Program Notification that no certification was issued. Notification that GW URL does not exist. Cert: Updtt ReqID The ID of the request for certification. Firm Updating Displays the status of the firmware update. Firm UpFlg No HDD This setting determines if the firmware can be updated, even without the HDD installed. Firm Up Usr Conf This SP setting determines if the operator can confirm the previous version of the firmware before the firmware update execution.
  • Page 169 5. Service Tables Displays serial number for the @Remote certification. Asterisks (*) indicate that no DESS exists. CERT: Issuer Displays the common name of the issuer of the @Remote certification. CN = the following 30 bytes. Asterisks (*) indicate that no DESS exists. CERT: St ExpTime Displays the start time of the period for which the current @Remote certification is enabled.
  • Page 170 Service Program 1: In progress (no result yet). Please wait. 2: Line abnormal 3: Cannot detect dial tone automatically 4: Line is disconnected 5: Insufficient electrical power supply 6: Line classification not supported 7: Error because fax transmission in progress – ioctl() occurred. 8: Other error occurred 9: Line classification still in progress.
  • Page 171 5. Service Tables SSP: Sets the length of the timeout for the embedded RCG-M connection to its access point. The timeout is the time from when the modem sends the ATD to when it receives the result code. [1 to 65536 / 60 / 1 /step] Dial Up User Use this SP to set a user name for access to remote dial up.
  • Page 172 Service Program Comm Line This SP sets the connection conditions for the customer. This setting dedicates the line to embedded RCG-M only, or sets the line for sharing between embedded RCG-M and a fax unit. [0 or 1 / 0 / - ] 0: Line shared by embedded RCG-M/Fax 1: Line dedicated to embedded RCG-M only •...
  • Page 173 5. Service Tables Executes the polling test. Instl: Condition Displays a number that indicates the status of the @Remote service device. 0: Neither the registered device by the external RCG nor embedded RCG device is set. 1: The embedded RCG device is being set. Only Box registration is completed. In this status the this unit cannot answer a polling request from the external RCG.
  • Page 174 Service Program Instl: Rgstltn Executes Embedded RCG Registration. Instl: Rgstltn Rst Displays a number that indicates the registration result. 0: Succeeded 2: Registration in progress 3: Proxy error (proxy enabled) 4: Proxy error (proxy disabled) 5: Proxy error (Illegal user name or password) 6: Communication error 7: Certification update error 8: Other error...
  • Page 175 5. Service Tables -2390 Program out of service -2391 Two registrations for same device -2392 Parameter error -2393 External RCG not managed -2394 Device not managed -2395 Box ID for external RCG is illegal -2396 Device ID for external RCG is illegal -2397 Incorrect ID2 format -2398...
  • Page 176 Service Program 5828 Network Setting Enables or disables 1284 Compatibility. 050 1284 Compatibility (Centro) [0 or 1 / 1 / 1 / step] 0: Disabled, 1: Enabled Enables or disables ECP Compatibility. [0 or 1 / 1 / 1 / step] 052 ECP (Centro) 0: Disabled, 1: Enabled NOTE: This SP is activated only when SP5-828-50 is set to...
  • Page 177 5. Service Tables 5828 Network Setting Enables or disables the Web operation. 091 Web (0: OFF 1: ON) [ 0 or 1 / 1 / – ] 0: Disable, 1: Enable Active IPv6 Link This is the IPv6 local address link referenced on the Ethernet or wireless LAN (802.11b) in the format: "Link Local Address"...
  • Page 178 Service Program for the maximum end of the range for each area. Adjust the upper 4 bits to set the maximum number of channels. DFU • Do not change the setting. [ 1 to 11 or 13 / 1 / 1 /step] Channel MIN Europe: 1 to 13 NA/ Asia: 1 to 11...
  • Page 179 Transfer Rate Sets the speed for USB data transmission. [Full Speed] [Auto Change] Vendor ID Sets the vendor ID: Initial Setting: 0x05A Ricoh Company [0x0000 to 0xFFFF/1] DFU Product ID Sets the product ID. [0x0000 to 0xFFFF/1] DFU Device Release No.
  • Page 180 Service Program Sets the FTP port number used when image files to the Scan Router Server. Srv IP (Primary) Range: 000.000.000.000 to 255.255.255.255 Use this SP to set the Scan Router Server address. The IP address under the transfer tab can be referenced by the initial system setting.
  • Page 181 5. Service Tables Bit1 = 1 Function to link MK-1 user and Sender exists Bit0 = 1 Sender specification required (if set to 1, Bit6 is set to “0”) Delivery Svr Capability (Ext) [ 0 to 255 / 0 / 1 /step] Changes the capability of the server that is registered as an I/O device.
  • Page 182 Service Program [ 0 or 1 / 1 / - ] Rapid-fire Send 0: Disable, 1: Enable Enables or disables the prevention function for the continuous data sending. UCS Settings 5846 Provides items for delivery server settings. Machine ID (Delivery Server) Displays ID Displays the unique device ID in use by the delivery server directory.
  • Page 183 5. Service Tables Sets the length of the timeout for the search of the LDAP server. [AddrB Acl Info] Address Book Access Control List Information This SP must be executed immediately after installation of an HDD unit in a basic machine that previously had no HDD.
  • Page 184 Service Program Deletes only the files that were uploaded from this machine. This feature does not work if the card is write-protected. Note: After you do this SP, go out of the SP mode, and then turn the power off. Do not remove the SD card until the Power LED stops flashing.
  • Page 185 5. Service Tables Shows the status of the encryption function for the 094 Encryption Stat address book data. Note SP5846-062 to SP5846-065 do not normally require adjustment. These SP modes are enabled only after the system administrator has set up a group password policy to control access to the address book.
  • Page 186 Service Program Selects the transmit timing. [0 to 2 / 0 / 1/step] 217 Timing 0: No Transmit, 1: Transmit one by one 2: Transmit periodically Installation Date 5849 Displays or prints the installation date of the machine. The “Counter Clear Day” has been changed to “Installation Date” or 001 Display “Inst.
  • Page 187 5. Service Tables Save to SD Card Specifies the debug log number for saving to an SD card. Erase SD Debug Erases SD debug logs in the SD card. Turn off and on after executing this SP. Dsply-SD Space Displays the remaining space in the SD card. SD to SD Latest (Latest 4 MB) Saves the debug log (latest 4 MB) in memory to the SD card.
  • Page 188 Service Program [0 or 1 / 0 / 1/ step] 0: OFF, 1: ON 003 Any SC [0 to 65535 / 0 / 1 /step] Turns the save function on/off for jam errors. 004 Jam [0 or 1 / 0 / 1/ step] 0: OFF, 1: ON 5859 Debug Log Save Key...
  • Page 189 5. Service Tables Determines whether the FROM item of the mail header is switched to the validated account after the SMTP server is validated. 0: No. "From" item not switched. 1: Yes. "From" item switched. SMTP Auth. Direct Setting [0 or 1 / 0 / – ] Selects the authentication method for SMPT.
  • Page 190 Service Program Writes to flash ROM the common proof for 001 Writing validating the device for @Remote specifications. Formats the common proof area of the flash ROM. 003 Initialize 5873 SD Card Appli Move This SP copies the application programs from the original SD 001 Move Exec card in SD card slot 3 to an SD card in SD card slot 2.
  • Page 191 5. Service Tables 5881 Delete Fixed Sent 001 Delete Fixed Sent Deletes the fixed form sentence. 5886 Permit ROM Update DFU This SP determines whether the ROM can be updated. [0 or 1 / 0 / 1/step] 0: Yes, 1: No 5887 SD GetCounter SSP This SP saves the counter list of the machine to an SD card in the slot 3.
  • Page 192 Service Program Sets the length of time to elapse before allowing another application to take control of the display when the application currently controlling the display is not operating because a key has not been pressed. [3 to 30 / 3 / 1 second/step] 5974 Cherry Server Selects which version of the Scan Router application program, “Light”...
  • Page 193 5. Service Tables 002 SP (Mode Data List) 003 User Program Data 004 Logging Data 005 Diagnostic Report 006 Non-Default (Prints only SPs set to values other than defaults.) 007 NIB Summary 021 Copier User Program 022 Scanner SP 023 Scanner User Program 5998 Memory Clear 001 See the section "Memory Clear"...
  • Page 194 Service Program Sub-scan Magnif [–0.9 to +0.9 / 0.0 / 0.1 %/step] 6006 5 Adjusts the sub-scan magnification for the ARDF. Origin Curl Adj [0 = No / 1 = Yes] 6006 6 Turns on or off the skew correction at 2nd side scanning. This SP is activated only when the duplex mode is selected.
  • Page 195 5. Service Tables 7401* Counter–SC Total [0 to 9999 / 0 / 1/step] 7401 1 Displays how many times SC codes are generated. 7403* SC History 7403 1 Displays the histories of the latest 10 SC codes. 7502* Counter–Paper Jam [0 to 9999 / 0 / 1/step] 7502 1 Displays the total number of copy paper jams.
  • Page 196 Service Program Paper is caught at the registration sensor. 1 Exit SN: ON 7504 120 Paper is caught at the exit sensor (previous page). Exit SN: OFF 7504 121 Paper does not reach the exit sensor. 2 Exit SN: ON 7504 122 Paper is caught at the exit sensor.
  • Page 197 5. Service Tables The original does not reach the inverter sensor. Inverter SN: ON 7505 215 Not used in this machine. 7506 [Paper Jam/ Size] Jam Counter: Paper Size 7506 6 A5 LEF 7506 44 HLT LEF 7506 133 A4 SEF 7506 134 A5 SEF Displays the number of jams according to the paper size.
  • Page 198 Service Program Displays the he part number and version of all ROMs in the machine 7803* PM Counter 7803 1 Displays the PM counter. 7804 PM Counter Reset Resets the PM counter (SP7-803-001). When the program ends normally, the message 7804 1 “Completed”...
  • Page 199 5. Service Tables Records the location where a problem is detected in the program. The data stored in this SP is used for problem analysis. DFU 7901 1 File Name 7901 2 Number of Lines 7901 3 Location Dsply–Info Count 7991* Displays the total operating time or the total number of operations.
  • Page 200 Service Program Copy application. Fax application. Totals (pages, jobs, etc.) executed for each application when the job was not stored on the document server. Print application. Scan application. Refers to network applications such as Web Image Other applications Monitor. Utilities developed with the SDK (Software (external network Development Kit) will also be counted with this group in the applications, for example)
  • Page 201 5. Service Tables Abbreviation What it means Dup, Duplex Duplex, printing on both sides Emul Emulation Full Color Post-print processing, i.e. finishing (punching, stapling, etc.) Full Bleed No Margins GenCopy Generation Copy Mode Get Print Counter. For jobs 10 pages or less, this counter does not count up. For jobs larger than 10 pages, this counter counts up by the number that is in excess of 10 (e.g., for an 11-page job, the counter counts up 11-10 =1) IFax...
  • Page 202 Service Program Abbreviation What it means PJob Print Jobs Paper PrtJam Printer (plotter) Jam PrtPGS Print Pages Red (Toner Remaining). Applies to the wide format model A2 only. This machine is under development and currently not available. Remote Communication Gate Resolution Service Code (Error SC code displayed) Scan...
  • Page 203 5. Service Tables 8 195 S:Total Scan PGS • SP 8 191 to 8 196 count the number of scanned sides of pages, not the number of physical pages. • These counters do not count reading user stamp data, or reading color charts to adjust color. •...
  • Page 204 Service Program With an ADF/ARDF that can scan both sides simultaneously, the Front side count is the same as the number of pages fed for either simplex or duplex scanning. With an ADF/ARDF that cannot scan both sides simultaneously, the Front side count is the same as the number of pages fed for duplex front side scanning.
  • Page 205 5. Service Tables These SPs count by size the total number of pages scanned by the Copy application. Use these totals to compare original page size (scanning) and output (printing) page size [SP 8-442]. F:Scan PGS/Size [0 to 99999999 / 0 / 1] 8 303 These SPs count by size the total number of pages scanned by the Fax application.
  • Page 206 Service Program 8 387 O:Total PrtPGS • When the A3/DLT double count function is switched on with SP5104, 1 A3/DLT page is counted as • When several documents are merged for a print job, the number of pages stored is counted for the application that stored them.
  • Page 207 5. Service Tables These SPs count by binding and combining, and n-Up settings the number of pages processed for printing by the fax application. P:PrtPGS/Dup Comb [0 to 99999999 / 0 / 1] 8 424 These SPs count by binding and combining, and n-Up settings the number of pages processed for printing by the printer application.
  • Page 208 Service Program Booklet Magazine Original Original Count Count Pages Pages T:PrtPGS/Ppr Size [0 to 99999999 / 0 / 1] 8 441 These SPs count by print paper size the number of pages printed by all applications. C:PrtPGS/Ppr Size [0 to 99999999 / 0 / 1] 8 442 These SPs count by print paper size the number of pages printed by the copy application.
  • Page 209 5. Service Tables 002 A4 003 A5 004 B4 005 B5 006 DLT 007 LG 008 LT 009 HLT 010 Full Bleed 254 Other (Standard) 255 Other (Custom) • These counters do not distinguish between LEF and SEF. PrtPGS/Ppr Tray [0 to 99999999 / 0 / 1] 8 451 These SPs count the number of sheets fed from each paper feed station.
  • Page 210 Service Program These SPs count by paper type the number pages printed by all applications. • These counters are not the same as the PM counter. The PM counter is based on feed timing to accurately measure the service life of the feed rollers. However, these counts are based on output timing.
  • Page 211 5. Service Tables These SPs count by finishing mode the total number of pages printed by the Fax application. • Print finishing options for received faxes are currently not available. P:PrtPGS/FIN [0 to 99999999 / 0 / 1] 8 524 These SPs count by finishing mode the total number of pages printed by the Print application.
  • Page 212 Service Program 8 591 1 A3/DLT These SPs count the totals for A3/DLT paper use, number of duplex pages printed, and the number of staples used. These totals are for 8 591 2 Duplex Other (O:) applications only. 8 601 Cvg Counter [0 to 99999999 / 0 / 1] 8 601 1 Cvg: BW %...
  • Page 213 5. Service Tables • If a document has color and black-and-white pages mixed, the pages are counted separately as B/ W or Color. • At the present time, this feature is provided for the Fax application only so SP8641 and SP8643 are the same.
  • Page 214 Service Program These SPs count by color mode the total number of pages sent to a Scan Router server by the Scan application. 001 B/W 002 Color • The B/W and Color counts are done after the document is stored on the HDD of the Scan Router server.
  • Page 215 5. Service Tables • When sending the same message to more than one place using broadcasting, the pages are only counted once. (For example, a 10-page fax is sent to location A and location B. The counter goes up by 10, not 20.) TX PGS/Port [0 to 99999999 / 0 / 1] These SPs count the number of pages sent by the physical port used to send them.
  • Page 216 Service Program Toner Remain [0 to 100 / 0 / 1] This SP displays the percent of toner remaining for each color. This SP allows the user to check the toner supply at any time. 8 801 • This precise method of measuring remaining toner supply (1% steps) is better than other machines on the market that can only measure in increments of 10 (10% steps).
  • Page 217 5. Service Tables Page/Toner Bottle *BICU [0 to 99999999/ 0 / 1] 8 891 This SP displays the number of sheets output by the scan application. 8 891 1 Page/Toner k Prev1 *BICU [0 to 99999999/ 0 / 1] 8 901 This SP displays the number of sheets output by the scan application with the previously replaced units.
  • Page 218 Service Program Includes time while the machine is performing background 8 941 3 Energy Save Time printing. Includes time in Energy Save mode with Engine on. Includes 8 941 4 Low Power Time time while machine is performing background printing. Includes time while machine is performing background printing.

  • Page 219: Id Sensor Error Analysis (Sp2-221)

    5. Service Tables ID Sensor Error Analysis (SP2-221) The image quality may become very bad when the ID sensor does not operate properly. However, there is no such SC code that indicates ID-sensor malfunction; instead, SP2-221 shows you some information on the ID sensor.

  • Page 220: Memory Clear Procedure

    Service Program SCS, IMH, MCS, Copier application, Fax application, Printer application, Controller data Controller SP5-801-xxx Scanner application, Web service/ network application, NCS, R-Fax, DCS, UCS Exceptions SP5-998-001 clears most of the settings and counters stored in the NVRAM on the BICU (the values return to their default values).

  • Page 221: Input Check (Sp5-803)

    5. Service Tables 10. Adjust the standard white level (SP4-428). 11. Initialize the TD sensor (SP 2-214). 12. Check the copy quality and the paper path. Input Check (SP5-803) Conducting Input Check 1. Select SP5-803. 2. Select the number (see the table below) corresponding to the component. 3.

  • Page 222: Output Check (Sp5-804)

    Service Program Num. Sensor/Switch Polygon M Lock Locked Not locked Total CO Install Installed Not installed Key CO Install Installed Not installed L-Synchronization Detected Not detected DF-Cover Open S Open Closed DF-Original Set S Paper detected Not detected DF-Registration S Paper detected Not detected DF-Exit S...
  • Page 223 5. Service Tables Output Check Table Num. Component Main Motor Forward Main Motor Reverse Quenching Lamp Toner Supply Clutch Forward Fan Motor High Fan Motor Low Registration Clutch By-pass Feed Clutch Upper Feed Clutch Lower Feed Clutch BK-Lift Motor Duplex Inv Motor Reverse Duplex Inv Motor Forward Duplex Inv Motor Hold Polygon Motor...

  • Page 224: Machine No. Setting (Sp5-811-001)

    Service Program When checking Fan Motor High (005) or Fan Motor Low (006) note the following: • These motors may not respond when the fusing temperature is high. • Selecting “ON” checks that one of these motors normally operates. Selecting “OFF” turns off the motor that you have started by selecting “ON.”...

  • Page 225: Downloading An Sd Card To Nvram

    5. Service Tables 5. Execute SP 5824-1 (NVRAM Data Upload) then press the “Execute” key. • When uploading is finished, a file is coped to an NVRAM folder on the SD card. The file is saved to the path and filename: NVRAM\<serial number>.NV Here is an example with Serial Number “B0700017”: NVRAM\B0700017.NV...

  • Page 226: Firmware Update Procedure

    Service Program • C/O, P/O Count Firmware Update Procedure This section illustrates how to update the firmware of the GW machine (the machine with the optional controller box). To update the firmware for the GW machine, you must have the new version of the firmware downloaded onto an SD (Secure Digital) Card.
  • Page 227 5. Service Tables 3. Create the following folders within the “romdata” folder: B121, B620, B622, B658, B681, B685 4. Download the firmware from the server and store the files in the folder with the corresponding model code on the SD card. Example: File B1215540B should be stored in the “B121”...
  • Page 228 Service Program 6. Switch the main power switch on. After about 5 seconds, the LCD will display “Please wait…” Then, about 60 seconds later, the LCD will display “Program UpDate Menu P.01” on the first line and the name of the firmware on the second line (e.g. System/Copy). 7.
  • Page 229 5. Service Tables • When you have selected a module, the text lines are highlighted, and the "Verify" key and the "Update" key are displayed. 8. Select a module and press the "Update" key. • Do NOT press the “Verify” key. 9.
  • Page 230 Service Program If an error occurs, the error code is displayed. For a list of information on error codes, see the following table. Cause Necessary Action • Insert the SD card correctly. Physical address mapping error • Use another SD card •...

  • Page 231: Test Pattern Print (Sp5-902-001)

    5. Service Tables Cause Necessary Action • Store the correct data in the SD card. Controller program error* • Replace the controller board. • Store the correct data in the SD card. E50 Authentication error *You need to reinstall the program. If the firmware update program is interrupted (for example, by a power failure), keep the SD card inserted and turn the mains switch off and on.
  • Page 232 Service Program Alternating Dot Pattern Isolated One Dot Black Band (Horizontal) Trimming Area Argyle Pattern (Single Dot) Grayscales (Horizontal) Grayscales (Vertical) Grayscales (Vertical/Horizontal) Grayscales (Vertical/Horizontal Overlay) Grayscales With White Lines (Horizontal) Grayscales with White Lines (Vertical) Grayscales with White Lines (Vertical/Horizontal) Test Patterns Using IPU Pattern Vertical Lines (Single Dot)
  • Page 233 5. Service Tables Argyle Pattern (128-Dot Pitch) Square Gradation (64 Grades) Square Gradation (256 Grades) Grayscales (Horizontal, 32-Dot Width) Grayscales (Vertical, 32-Dot Width) A4 Gradation Patches 1 (128 Grades) A4 Gradation Patches 2 (128 Grades) Trimming Area (A4) Test Patterns Using SBU Pattern Grid Pattern (double dot) Gray Scale 1 (256 grades)

  • Page 234: Smc Print (Sp5-990)

    Service Program : The PCI is available to the models with the controller box. The original image on the exposure glass is printed behind the test pattern. SMC Print (SP5-990) SP5-990 outputs machine status lists. 1. Select SP5-990. 2. Select a menu: •...

  • Page 235: Printer Service Mode

    5. Service Tables Printer Service Mode Service Mode Table SP No. Description Function and Setting Adjusts bit switch settings. 1001 BitSw#1 Set Note: Currently the bit switches are not being used. 1003 Clear Setting Not used Prints the service summary sheet 1004 Print Summary (An error log is printed in addition to the configuration page).
  • Page 236 Service Program Example: [-9 to +9 / +3.0 / 0.1 mm step]. The setting can be adjusted in the [range / default / range ±9, value reset to +3.0 after an NVRAM reset, and the value can be step] changed in 0.1 mm steps with each key press. italics Comments added for your reference.
  • Page 237 5. Service Tables Number/Name Function and [Setting] Level 4 (Low I-Qual) [5 to 95 / 30 /1/step] Level 1 (Highest I-Qual) [5 to 95 / 60 /1/step] Level 5 (Lowest I-Qual) [5 to 95 / 20 /1/step] For the settings of the image quality, see the copier SP-mode table.

  • Page 238: Overview

    6. Detailed Section Descriptions Overview Component Layout Mainframe 1. Exposure Lamp 20. ID (Image Density) Sensor 2. 1st Scanner 21. Registration Roller 3. CCD (on SBU) 22. Registration Sensor 4. Lens Block 23. Bypass Tray 5. 2nd Scanner 24. Bypass Paper Feed Roller 6.
  • Page 239 6. Detailed Section Descriptions 8. Platen Cover Sensor 27. Mixing Augers 9. Exposure Glass 28. (Main) Friction Pad 10. Exit Roller 29. Paper Feed Roller 11. Exit Sensor 30. Paper End Sensor 12. Scanner Motor 31. TD (Toner Density) Sensor 13.

  • Page 240: Electrical Components

    Overview Electrical Components Electrical Components 1 1. Lens Block 11. ID (Image Density) Sensor 2. Exposure Lamp 12. Registration Sensor 3. Lamp Stabilizer Board 13. Paper End Sensor 4. Scanner HP Sensor 14. Toner Density Sensor 5. Platen Cover Sensor 15.
  • Page 241 6. Detailed Section Descriptions 10. Exit Sensor 20. Operation Panel Board Electrical Components 2 1. Duplex Motor 7. Paper Feed Clutch 2. Exhaust Fan 8. Toner Supply Clutch 3. PSU 9. Bypass Feed Clutch 4. Controller Board (GW) 10. Registration Clutch 5.
  • Page 242 Overview ARDF 1. DF Feed Clutch 6. DF Feed Motor 2. Registration Sensor 7. Inverter Sensor 3. Exit Sensor 8. DF Drive Board 4. Left Cover Sensor 9. Junction Gate Solenoid 5. DF Transport Motor 10. Original Set Sensor...

  • Page 243: Paper Path

    6. Detailed Section Descriptions Paper Path 1. Original Registration Sensor (Document 6. Paper Path Sensor Feeder) 7. Registration Sensor 2. Exit Senor (Document Feeder) 8. By-pass Paper End Sensor 3. Inverter Sensor (Document Feeder) 9. Paper Feed Sensor (Optional Tray) 4.

  • Page 244: Drive Layout

    Drive Layout Drive Layout Mainframe 1. Scanner Motor 7. Bypass Feed Clutch (By-pass Tray) 2. Duplex motor 8. Registration Clutch 3. Exit Roller 9. Developer Driver Gear 4. Toner Bottle Clutch 10. Drum Drive Gear 5. Main Motor 11. One-way Gear (Duplex Unit) 6.

  • Page 245: Ardf

    6. Detailed Section Descriptions ARDF 1. DF Feed Motor 6. Separation Roller 2. Feed Roller 7. Transport Roller 3. Pick-up Roller 8. DF Transport Motor 4. Inverter Roller 9. Exit Roller 5. DF Feed Clutch 10. Registration Roller • DF Feed Motor: Drives the feed, separation, pick-up, and transport and inverter rollers. •...

  • Page 246: Block Diagram: Pcbs And Components

    Block Diagram: PCBs and Components Block Diagram: PCBs and Components This table lists available units and components for each model. Document Printer/ Model Fax* Controller Feeder Scanner Fax Model (B284) Standard Optional Standard GW controller SPF Model (B288) Standard Standard Standard GW controller This table lists available interfaces for the Fax/SPF models.

  • Page 247: Main Pcbs

    6. Detailed Section Descriptions Main PCBs SBU (Sensor Board Unit) The SBU receives analog signals from the CCD and converts these into digital signals used for image processing. Buffer Used for driving the CCD. Includes a 3V/5V converter (converts the CALDA 3V drive signal to 5V). Converts light reflected from the original into an electrical signal.
  • Page 248 Main PCBs Amplifier Inverts and amplifies the electrical signal from the CCD.

  • Page 249: Copy Process

    6. Detailed Section Descriptions Copy Process Overview The following is a brief overview. For more detailed information about each process, refer to the Core Technology manual. 1. Exposure A xenon lamp [A] exposes the original → the CCD [B] converts reflected light to analog data signal →...
  • Page 250 Copy Process In the dark, the drum charge roller [C] imparts a negative charge to the OPC drum. (The roller is kept clean by cleaning roller [D].) 3. Laser Exposure The laser unit, controlled by the BICU, fires a beam [E] at the drum, drawing the latent electrostatic image on the drum surface.

  • Page 251: Scanning

    6. Detailed Section Descriptions Scanning Overview 1. Scanner HP Sensor 7. 2nd Mirror 2. 1st Mirror 8. Scanner Motor 3. Exposure Lamp 9. 3rd Mirror 4. 1st Scanner 10. Lens Block 5. Exposure Glass 11. Lens 6. 2nd Scanner 12. CCD The HP sensor [1] senses when the scanner is at home position, ready to begin a scan.

  • Page 252: Scanner Drive

    Scanning Scanner Drive The scanner motor [A] (a stepper motor) drives a gear that turns a small drive belt [B], driving the scanner drive shaft [C]. Pulleys [D, E] on the ends of the shaft drive timing belts [F] and [G], driving the 1st scanner [H].

  • Page 253: Image Processing

    6. Detailed Section Descriptions Image Processing Overview The scanned image is processed by the following modules. In the SBU • CCD: Converts the reflected light from the image into an analog signal. Driven by the CALDA. • Amp: Amplifies the analog signal and sends it to the AFE on the BICU. In the BICU •...

  • Page 254: Image Processing Path

    Image Processing Image Processing Path The image data from the SBU goes to the IPU (Image Processing Unit) on the BICU board, which carries out the following processes on the image data: • Auto shading • White/black line correction • ADS •...
  • Page 255 6. Detailed Section Descriptions The original mode key on the operation panel has two settings, text and photo. With the default settings, the machine uses “Normal Text (Text 1)” when the Text indicator is lit, and uses “Photo Priority (Photo 1)” when the Photo indicator is lit.
  • Page 256 Image Processing Newspapers, originals through which the rear side is Sharp moderately visible as faint text. Photo priority Text/photo images which contain mainly photo areas Photo Text priority Text/photo images which contain mainly text areas Photographs Actual photographs Originals through which the rear side is extremely visible Unneeded (or have a colored background) with faint text.

  • Page 257: Image Processing Steps For Each Mode

    6. Detailed Section Descriptions Image Processing Steps for Each Mode...

  • Page 258: Mode Adjustments

    Image Processing Mode Adjustments As a service person, you can use SPs 4-922 to 4-932 to further customize each of these original modes to meet specific user requirements. If the user is experiencing a problem with copy, however, SP-based adjustment should be the last step. Always proceed as follows: 1.

  • Page 259: Laser Exposure

    6. Detailed Section Descriptions Laser Exposure Overview [A]: LD Unit [E]: Toroidal Lens [B]: Synchronization Detector Lens [F]: Polygon Mirror Motor [C]: OPC Drum [G]: Cylindrical Lens [D]: Shield Glass [H]: LD Shutter • The LD unit controls both the laser output and the laser synchronization mechanism. •...

  • Page 260: Ld Safety Switches

    Laser Exposure LD Safety Switches Safety switches are installed at the front and right doors to ensure technician and user safety and to prevent the laser beam from accidentally switching on during servicing. Opening of the front or right door opens the corresponding switch, cutting the power supply (+5VS) to the laser diode.

  • Page 261: Photoconductor Unit (Pcu)

    6. Detailed Section Descriptions Photoconductor Unit (PCU) Overview 1. Cleaning Blade 6. TD (toner density) Sensor 2. Toner Collection Coil 7. Mixing Auger 1 3. OPC Drum 8. Doctor Blade 4. Development roller 9. Charge Roller 5. Mixing Auger 2 10.

  • Page 262: Drum Drive

    Photoconductor Unit (PCU) Drum Drive The main motor [A] drives the drum [B] through a series of gears and the drum drive shaft [C].

  • Page 263: Drum Charge

    6. Detailed Section Descriptions Drum Charge Overview The drum charge roller [A] remains in contact with the drum, producing a charge of –900 V on the drum surface. The high voltage supply board [B] supplies a negative charge to the charge roller via wire [C] and spring [D].

  • Page 264: Charge Roller Voltage Correction

    Drum Charge Charge Roller Voltage Correction Correction for Ambient Environment Efficiency of voltage transfer from the charge roller to the drum decreases as ambient temperature and humidity rise. Accordingly, the charge roller voltage must be made more negative at higher temperature and humidity.

  • Page 265: Charge Roller Cleaning

    6. Detailed Section Descriptions • Correction can be disabled with SP2-927. How Correction is Made Immediately after creating the ID sensor pattern [A] used for toner density control (* "Toner Density Control"), the machine generates another pattern [B] for charge voltage correction by intensifying the development bias (* "Development Bias") to –600 V.
  • Page 266 Drum Charge At time of copier installation The first time the machine is turned on following installation, a factory-set flag informs the machine that the PCU has not yet been initialized. The machine carries out the necessary initialization automatically. When a replacement PCU is installed Replacement PCUs have a special mechanism that trips when they first start, informing the machine that a new PCU has been installed.

  • Page 267: Development

    6. Detailed Section Descriptions Development Overview The development section consists of the following parts. 1. Development Roller 4. TD Sensor 2. ID Sensor 5. Mixing Auger 1 3. Mixing Auger 2 6. Doctor Blade The two mixing augers mix the developer (carrier/toner mix). The TD (toner density) sensor and the ID (image density) sensor are used to control the copy image density.

  • Page 268: Development Bias

    Development Development Bias Black areas of the latent image on the drum are at low negative charge (about –140 ± 50 V), with white areas at high negative charge (about –900 V). To attract negatively charged toner to black areas, the high voltage supply board [A] applies a (default) bias of –600 V to the development roller [B].

  • Page 269: Toner Density Control

    6. Detailed Section Descriptions When toner bottle [A] is pushed in, shutter [B] is pushed open by the PCU body. Pressing in lever [C] pulls off toner bottle cap [D], which is held by chuck [E]. When clutch [F] turns the bottle, the spiral grooves push toner out at [G], and the turning Mylar blades [H] push this toner through slit [I] into the developing unit.

  • Page 270: Toner Supply If Sensor Reading Is Abnormal

    Development Vref is calculated based on: • ID sensor output (Vsp/Vsg) • Existing reference voltage (Vref or Vts) – Vt Toner Supply Determination The machine supplies toner if Vt exceeds the reference voltage. • Current Vt and reference voltage values can be viewed using SP2-220. Other ID sensor values can be viewed using SP2-221.

  • Page 271: Detection Of Toner Near End And Toner End

    6. Detailed Section Descriptions • Vsg < 2.31 (at maximum power) • Vsp ≥ 1.65 • Vt ≥ 2.64 or Vt < 0.20 Current readings can be viewed using SP2-221. TD Sensor The reading is considered abnormal if TD < 0.20 V or TD > 2.64 V. Abnormal readings 10 times in succession will generate SC 390.

  • Page 272: Drum Cleaning And Toner Recycling

    Drum Cleaning and Toner Recycling Drum Cleaning and Toner Recycling • Cleaning blade [A] scrapes remaining toner from the drum after image transfer. Toner piles up on the blade. • Toner collect coil [B] transports toner from pile and drops it onto chute [C], where it slides down into the development unit through a slit located at [D].

  • Page 273: Ardf Operation

    6. Detailed Section Descriptions ARDF Operation Pick-Up and Separation The ARDF uses an FRR (feed & reverse roller) system. Setting paper moves the feeler, causing the original set sensor to inform the CPU that the ARDF is ready to feed. Press ...
  • Page 274 ARDF Operation The feed motor feeds the separated original to the registration roller [A]. A short time after an original reaches the registration sensor [B], the DF feed motor stops briefly, the scanner moves to DF scan position, and the white peak is read. The DF feed motor and DF transport motor then start and the sheet is scanned. After scanning, the original is fed out by the exit roller [C].

  • Page 275: Original Set Sensor

    6. Detailed Section Descriptions The original is then sent to the inverter table again to be turned over. This is done so that the duplex copies will be properly stacked front side down in the exit tray [G] in the correct order. Original Set Sensor During one-to-one copying, copy paper is fed to the registration roller in advance (while the original is still being scanned), to increase the copy speed.

  • Page 276: Paper Feed

    Paper Feed Paper Feed Overview 1. Exit Roller 6. Bypass Friction Pad 2. Exit Sensor 7. (Main) Friction Pad 3. Registration Sensor 8. (Main) Paper End Sensor 4. Bypass Feed Roller 9. Paper Feed Roller 5. Bypass Paper End Sensor 10.

  • Page 277: Paper Feed Drive Mechanism

    6. Detailed Section Descriptions Paper Feed Drive Mechanism From Paper Tray Main motor [A] drives gears on the registration clutch [B] and the paper feed clutch [C]. These clutches transfer drive to the registration roller [D] and paper feed roller [E]. The BICU controls clutch timing based on input from the registration sensor.
  • Page 278 Paper Feed From 100-Sheet Bypass Tray Main motor [A] drives gear on registration clutch [B] and bypass feed clutch [F]. The bypass feed clutch drives the bypass feed roller [G]. Again, the BICU controls clutch timing based on input from the registration sensor.

  • Page 279: Paper Feed And Separation

    6. Detailed Section Descriptions Paper Feed and Separation The machine uses a friction-pad feed system. Friction pad [A] (in paper tray) Paper Lift Mechanism When tray is pushed in: Projection [B] on frame pushes rounded slider [C] in against spring [D], retracting the latch [E].

  • Page 280: Paper End Detection

    Paper Feed Paper End Detection Main Tray When paper runs out, feeler [A] drops into cutout, activating paper end sensor [B]. 100-Sheet Bypass Tray When paper runs out, feeler [C] drops into cutout, activating the bypass paper end sensor [D].

  • Page 281: Paper Registration

    6. Detailed Section Descriptions Paper Registration The BICU uses input from registration sensor [A] to control clutch timing and detect misfeeds. Registration clutch timing is controlled to eliminate skew (by stopping the paper briefly as it reaches the roller, so that it buckles).

  • Page 282: Image Transfer And Paper Separation

    Image Transfer and Paper Separation Image Transfer and Paper Separation Overview The transfer roller [A] is pressed against the OPC drum [B]. The high-voltage power supply board [C] supplies a positive current to the transfer roller, attracting the toner from the drum onto the paper. The current is set in accordance with the paper's type, size, and feed tray.

  • Page 283: Transfer Roller Cleaning

    6. Detailed Section Descriptions 1. Low level: Before image transfer starts, the high voltage supply board supplies +10μA to the transfer roller. This prevents the transfer roller from attracting any positively charged toner on the drum surface. 2. High level: During image transfer, the high voltage supply board supplies a high level current (see the table) to the transfer roller.

  • Page 284: Image Fusing And Paper Exit

    Image Fusing and Paper Exit Image Fusing and Paper Exit Overview 1. Exit Roller 6. Fusing Lamp 2. Paper Path Sensor 7. Hot Roller 3. Hot Roller Strippers 8. Thermoswitch 4. Pressure Spring 9. Thermistor 5. Pressure Roller 10. Exit Sensor...

  • Page 285: Hot Roller Drive

    6. Detailed Section Descriptions Hot Roller Drive Left: Contact-release solenoid off Right: Contact-release solenoid on Mechanism The main motor [A] drives the hot roller [D] through a gear train. One of the gears in the gear train is the contact-release gear [B]. This gear is linked to the contact-release solenoid [C]. When the contact-release solenoid is on, it separates the contact-release gear from another gear [E] in the gear train.

  • Page 286: Pressure Roller

    Image Fusing and Paper Exit • The copier takes a shorter time to heat the hot roller when the roller is not turning. • The temperature of the hot roller surface may become uneven when the hot roller temperature is low and the roller is not turning.

  • Page 287: Separation

    6. Detailed Section Descriptions When the right door is opened, part [A] (on each side) pulls open catch [B] (on each side), releasing pressure on the pressure roller, so that it can turn freely to allow removal of jams. When the right door is closed, part [C] pushes catch [B] closed, restoring normal pressure.
  • Page 288 Image Fusing and Paper Exit Ready 150°C SP1-105-003 Copying 160°C SP1-105-005 Low level 60°C SP1-105-007 Thick paper 165°C SP1-105-009 Temperature Transition When the fusing unit is cool, the fusing temperature should be higher to ameliorate the fusing quality. During copying, the fusing temperature is controlled in four phases as listed in the table. “Default” is the target fusing temperature of SP1-105-005 (160°C).

  • Page 289: Overheat Protection

    6. Detailed Section Descriptions Overheat Protection The BICU references the fusing temperature through the thermistor [A]. The copier prevents overheating as listed below. Normally, Feature 1 is effective in preventing overheating. Features 2 through 3 are fail-safe features. Feature 1: The BICU turns off the fusing lamp when the fusing temperature is too high.
  • Page 290 Image Fusing and Paper Exit • The thermoswitch near the center does not necessarily work earlier than the other thermoswitch. The ends of the hot roller can be much hotter than the center when, for example, paper of a small size is continuously going through the fusing unit.

  • Page 291: Duplex Unit

    6. Detailed Section Descriptions Duplex Unit Important Components The following components play important roles in duplex printing: • The duplex motor drives the exit roller [A] and duplex roller [D]. • One of the paper guides on the fusing unit [C] is linked to the paper path sensor [B]. The bypass tray cannot be used for duplex printing.

  • Page 292: Duplex Printing Process

    Duplex Unit Duplex Printing Process The main steps of the duplex printing process are as follows: 1. The controller starts to operate the main motor and duplex motor. 2. The hot roller [A] and pressure roller [B] transport the paper to the paper guide [C]. 3.
  • Page 293 6. Detailed Section Descriptions 5. When the trailing edge of the paper exits from the paper guide, the paper guide drops to the original position [F] and turns the paper path sensor [G] off. 6. The controller starts to operate the duplex motor in reverse; the exit roller [H] turns in reverse, transporting the paper to the duplex roller.
  • Page 294 Duplex Unit 9. When the leading edge of the paper reaches the registration sensor [J], the controller stops the duplex motor. The duplex roller holds the paper in the duplex unit. 10. When the OPC drum [K] gets ready for printing, the controller restarts the duplex motor. The duplex roller transports the paper.
  • Page 295 6. Detailed Section Descriptions 13. The leading edge of the paper pushes the paper guide [L]; the paper guide turns the paper path sensor [M] on. 14. The controller changes the direction of the duplex motor. The exit roller [N] changes the direction of its rotation, transporting the paper to the copy tray.

  • Page 296: Energy Saver Modes

    Energy Saver Modes Energy Saver Modes This section explains the energy saver modes. Overview The machine has three energy-saver modes: the Low Power Mode, the Transit Mode, and the Night/Off Mode. The Transit Mode continues for about two seconds (probably, the user does not recognize this mode when it occurs). The table lists the status of several components.

  • Page 297: Timers

    6. Detailed Section Descriptions * The “Operating Mode” here refers to all the modes (and status) other than the Low Power Mode and Night/Off Mode. Actual power consumption (during the Operating Mode) depends on job status and environmental conditions. ** The SRAM is alive and backs up the engine controller. When AOF is off, the engine controller is unable to start the Night/Off Mode.

  • Page 298: Gw Controller

    GW Controller GW Controller Overview This machine uses the GW architecture. To enable printer features, install the printer option SD Card in the controller. Main components: • CPU: TOSHIBA TMPR4955BFG-300 • CHARANGO: GW architecture ASIC. It controls all the functions of the controller board. •...

  • Page 299: Controller Functions

    6. Detailed Section Descriptions Optional components: • PostScript3 • Bluetooth interface • Wireless LAN interface • IEEE1284 interface Controller Functions Paper Source Selection Tray Priority (Auto Tray Select) The Tray Priority setting determines the start of the tray search when the user selects “Auto Tray Select” with the driver.

  • Page 300: Auto Continue

    GW Controller • The by-pass feeder cannot be locked. Manual Tray Select If the selected tray does not have the paper size and type specified by the driver, the controller stops printing until the user loads the correct paper. Auto Continue When this function is enabled, the machine stops printing and cancels the print job if there is no paper tray which matches the paper size and paper type specified by the driver.

  • Page 301: Scanner Functions

    6. Detailed Section Descriptions Duplex Printing Duplex printing is available with all output bin options but not all paper sizes. If a job specifies duplex printing but the paper size to be used cannot be used by the duplex unit, the job will be printed single- sided.
  • Page 302 GW Controller...
  • Page 303 6. Detailed Section Descriptions...

  • Page 304: General Specifications

    7. Specifications General Specifications Copier Configuration: Desktop Copy Process: Laser beam scanning and electro photographic printing Originals: Sheet/Book/Object Maximum Original Size: A4 / 8 " x 14" A4 / 8 " x 14" (ARDF) Maximum A4 SEF / 8 " x 11" SEF (Copier's paper tray) A4 SEF / 8 "...
  • Page 305 7. Specifications 200% 155% Enlargement 141% 129% Full Size 100% 100% Reduction Zoom: 50% to 200%, in 1% steps Power Source: 110 – 120 V, 60 Hz or 220 – 240 V, 50/60 Hz Maximum: 900 W or less (EU), 1000 W or less (NA) Energy Saver: 30 W or less Power Consumption: Sleep Mode: 10 W or less...

  • Page 306: Printer

    General Specifications • 100% size Copy Number Input: Numeric keypad, 1 to 99 (increment, decrement) Manual Image Density: 5 steps Default: 1 minute Auto Off Timer Range: 1 to 240 minutes Default: 1 minute Energy Saver Timer: Rage: 1 to 240 minutes Paper Tray: 250 sheets Copy Paper Capacity: Optional Paper Tray Unit: 500 sheets x 1...

  • Page 307: Scanner

    7. Specifications PostScript 3 (option) RPCS (Refined Printing Command Stream) - an original Ricoh PDL) PCL: 35 Intellifonts 10 True Type fonts Resident Fonts: 13 International fonts PS3: 136 fonts (24 Type 2 fonts, 112 Type 14 fonts) Memory: 128 MB...

  • Page 308: Ardf

    General Specifications IEEE1284 IEEE 802.11b (Wireless LAN), B/W: 600 dpi Resolution Full color: 300 dpi - 600 dpi Variable range of scan Setting range: 100 dpi - 600 dpi resolution Scanning speeds vary according to machine operating conditions, computer (specifications, network traffic, software, etc.), and original types.

  • Page 309: Paper Tray Unit

    7. Specifications Operating: 50 W or less Power Consumption: On standby: 1.2 W or less Dimensions (W x D x H): 485 x 360 x 120 mm (19.1" x 14.2" x 4.72") Weight: 4.9 kg (10.8 lb) (excluding the original table and platen cover) Paper Tray Unit A4 SEF, 8½"...

  • Page 310: Supported Paper Sizes

    Supported Paper Sizes Supported Paper Sizes Original Paper Sizes The copier and ARDF do not detect original paper sizes. The following table lists the paper sizes that the ARDF can transport. ARDF Paper Size (W x L) Book Simpl. Dupl. A3 SEF 297 x 420 mm –...

  • Page 311: Paper Feed

    7. Specifications ARDF Paper Size (W x L) Book Simpl. Dupl. HLT SEF 5.5" x 8.5" HLT LEF 8.5" x 5.5" F/GL (F4) SEF 8.0" x 13.0" Foolscap SEF 8.5" x 13.0" Folio SEF 8.25" x 13.0" Government 8.25" x 14" USB4 SEF 10.0"...
  • Page 312 Supported Paper Sizes Paper Size (W x L) Regular By-pass Duplex Optional PFU A4 SEF 210 x 297 mm A4 LEF 297 x 210 mm – – – – B5 SEF 182 x 257 mm – B5 LEF 257 x 182 mm –...
  • Page 313 7. Specifications Paper Size (W x L) Regular By-pass Duplex Optional PFU Eng Quarto LEF 10.0" x 8.0" – – – – Custom: Leading edge 90–216 mm – – – Side edge 139–356 mm Symbol meanings: X: Can transport –: Cannot transport...

  • Page 314: Machine Configuration

    Machine Configuration Machine Configuration Mainframe (B284/B288) Standard Component Machine Code Remarks Copier [A] B284/B288 GW Controller Board [C] ARDF [D] B872 Fax Unit [E] Optional Components Machine Code Remarks 500-Sheet Paper Feed Unit [B] B421 Hand Set [F] B433...

  • Page 315: System Components

    7. Specifications System Components Item Machine Code Remarks Controller Box Standard Printer/Scanner unit B892 Standard only for B288 RAM DIMM G332 Distributed with the printer/scanner unit PostScript 3 D323 IEEE 1284 B679 Wireless LAN G813 One from the three Bluetooth B826...
  • Page 316 MEMO...
  • Page 317 MEMO...

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