MINOLTA-QMS PagePro 1200 Series Service Manual
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MINOLTA-QMS PagePro 1200 Series Service Manual

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PagePro 1200 Series Service Manual
P/N 1750056-001

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  • Page 1 PagePro 1200 Series Service Manual P/N 1750056-001...

  • Page 3: Table Of Contents

    PagePro 1200 Series Table of Contents Contents 1. Safety Precautions for Inspection and Service ............5 1-1. Warning ......................5 1-2. Caution .......................7 1-3. Used Batteries Precautions .................9 1-4. Other Precautions .....................10 1-5. Precautions for Service ..................10 1-6. Safety information ....................12 1-7.
  • Page 4 PagePro 1200 Series Table of Contents 7-4. Troubleshooting for Paper Misfeeds ..............93 7-5. Troubleshooting For Malfunctions ..............95 7-6. Image Quality Troubleshooting ...............98 8. Wiring Diagrams .....................103 8-1. PagePro 1250E Wiring Diagram ..............103 8-2. PagePro 1200W Wiring Diagram ..............104...

  • Page 5: Safety Precautions For Inspection And Service

    PagePro 1200 Series Safety SAFETY PRECAUTIONS FOR INSPECTION AND SERVICE • When performing inspection and service procedures, observe the following precautions to prevent accidents and ensure utmost safety. • Depending on the model, some of the precautions given in the following do not apply.
  • Page 6 PagePro 1200 Series Safety WARNING 3. Do not throw toner or the toner bottle into a fire. • Do not throw toner or the Toner Bottle (Imaging Cartridge, Toner Cartridge) into a fire. Toner expelled from the fire may cause burns.

  • Page 7: Caution

    PagePro 1200 Series Safety WARNING 9. Maintain a grounded connection at all times. • Connect the power cord to an electrical outlet that is equipped with a grounding termi- nal. 10. Do not remodel the product. • Modifying this product in a manner not authorized by the manufacturer may result in a fire or electric shock.
  • Page 8 PagePro 1200 Series Safety CAUTION 2. Precautions for Servicing with Covers and Parts Removed. • Wherever feasible, keep all parts and covers mounted when energizing the product. • If energizing the product with a cover removed is absolutely unavoidable, do not touch any exposed live parts and use care not to allow your clothing to be caught in the mov- ing parts.

  • Page 9: Used Batteries Precautions

    PagePro 1200 Series Safety 1-3. Used Batteries Precautions ALL Areas CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

  • Page 10: Other Precautions

    PagePro 1200 Series Safety 1-4. Other Precautions • When handling circuit boards, observe the guidelines presented in “HANDLING of PWBs”. • The PC Drum is a very delicate component. Observe the precautions given in “HANDLING OF THE PC DRUM” because mishandling may result in serious image problems.
  • Page 11 PagePro 1200 Series Safety 4. Precautions for Dis/Reassembly • Be sure to unplug the printer from the outlet before attempting to service the printer. • Generally, do not to operate the printer anytime during disassembly. If it is absolutely necessary to run the printer with its covers removed, use care not to allow your clothing to be caught in revolving parts such as the timing belt and gears.

  • Page 12: Safety Information

    PagePro 1200 Series Safety Precautionary Information on the PC Drum Inside the Imaging Cartridge • Use care not to contaminate the surface of the PC Drum with oil-base solvent, fingerprints, or other foreign matter. • Do not scratch the surface of the PC Drum.
  • Page 13 PagePro 1200 Series Safety the U.S.A., Canada (CDRH Regulation) • This machine is certified as a Class I Laser product under Radiation Performance Standard according to the Food, Drug and Cosmetic Act of 1990. Compliance is mandatory for Laser prod- ucts marketed in the United States and is reported to the Center for Devices and Radiological Health (CDRH) of the U.S.
  • Page 14 PagePro 1200 Series Safety Finland, Sweden LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT VAROITUS! Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle. puolijohdelaser Laserdiodin suurin teho 5 mW aallonpituus PagePro 1200W: 770-810nm...

  • Page 15: Laser Safety Label

    PagePro 1200 Series Safety 1-7. Laser Safety Label • A laser safety label is attached to the outside of the machine as shown below. THIS PRODUCT COMPLIES WITH 21 CFR CHAPTER I, SUBCHAPTER J. or/and C4127o0559AA 1-8. Laser Caution Label •...

  • Page 16: Precautions For Handling The Laser Equipment

    PagePro 1200 Series Safety 1-9. PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT • When a disassembly job needs to be performed in the laser beam path, such as when working around the printerhead and PC Drum, be sure first to turn the printer OFF.

  • Page 17: Installation

    PagePro 1200 Series Installation Installation 2-1. Installation Environment When installing the printer, please avoid the types of locations listed below, both for safety consider- ations and to avoid breakdowns. • Areas with high temperatures or humidity, or with low temperatures and humidity •...

  • Page 18: Installation Space

    PagePro 1200 Series Installation 2-4. Installation Space PagePro 1200W shown below 3.9 in. (100 mm) 5.9 in. 11.8 in. (150 mm) (300 mm) 3.9 in. (100 mm) 35.1 in. (891 mm) C4127o507AA 11.2 in. (285 mm) 15.6 in. 21.7 in.
  • Page 19 PagePro 1200 Series Installation PagePro 1250E shown below 3.9 in. (100 mm) 5.9 in. 11.8 in. (150 mm) (300 mm) 3.9 in. (100 mm) 35.1 in. (891 mm) C4127o007AA 11.2 in. (285 mm) 15.6 in. 21.7 in. (395 mm) (550 mm) 17.4 in.
  • Page 20 PagePro 1200 Series Installation...

  • Page 21: General Information

    PagePro 1200 Series General Information General Information 3-1. Specifications Printer Type Desk-Top Laser Beam Printer Printing System Electrostatic dry powdered imaging system Exposure System Laser diode + Polygon Mirror scanning PagePro 1200W: 300 DPI (dot/inch), 600 DPI (dot/inch), 1200 DPI...
  • Page 22 PagePro 1200 Series General Information Multi-purpose Tray (plain paper: 150 sheets) Manual Feed Tray (1 sheet) Second Paper Cassette Unit (plain paper: 500 sheets) *2: Expandable to 3-way system when the optional Second Paper Cas- sette Unit is installed. Paper Exit System...
  • Page 23 PagePro 1200 Series General Information 6,000 prints or more (in continuous printing) Toner Cartridge Life 4,800 prints or more (in single printing) (replacement T/C) *Black/White ratio=5% 1,500 prints or more (in continuous printing) Toner Cartridge Life 1,200 prints or more (in single printing)
  • Page 24 PagePro 1200 Series General Information Controller PagePro 1200W: M38073M4 ASIC N1-Chips(Naltec original ASIC) Band Buffer method Imaging Method Run-length compression Standard ROM:64KB Memory configuration Standard RAM:8MB IEEE1284 Parallel (Compatible/Nibble/ECP) Standard Interface USB (Revision 1.1 compliant) Toner Saver Mode On / OFF...

  • Page 25: Parts Identification

    PagePro 1200 Series General Information 3-2. Parts Identification PagePro 1200W shown below 4127s006a 4127s006b C4127o005AA Face-up Tray Face-down Tray Manual Feed Tray Multi-purpose Tray Paper Cassette (Option) Second Paper Cassette Unit (Option) Power Switch Top Cover Release Button Drum Cartridge...
  • Page 26 PagePro 1200 Series General Information PagePro 1250E shown below 4127s006a 4127s006b C4127o005AA Face-up Tray Face-down Tray Manual Feed Tray Multi-purpose Tray Paper Cassette (Option) Second Paper Cassette Unit (Option) Power Switch Top Cover Release Button Drum Cartridge Toner Cartridge...
  • Page 27 PagePro 1200 Series General Information PagePro 1250E shown below 4127s008 Face-up / Face-down Selection Switch Face-up Exit Roller Power Cord Socket Power Cord Parallel Interface Connector USB Interface Connector...

  • Page 28: Components Layout

    PagePro 1200 Series General Information 3-3. Components Layout PagePro 1250E shown below. Note: The PagePro 1200W multipurpose tray has no cover. 250cd Toner Cartridge Paper Take-up Roller Drum Cartridge Second Paper Take-up Roller * Face-up / Face-down Selection Paper Empty Detecting Lever *...

  • Page 29: Drive Section

    PagePro 1200 Series General Information 3-4. Drive Section Overview The Main Motor (M1) transmits the drive to the rollers of the printer and the Second Paper Cassette Unit via each gear as shown below. 4127s011 Paper Exit Roller (Face-up) Sleeve Roller...

  • Page 30: Electrical Components Layout

    PagePro 1200 Series General Information 3-5. Electrical Components Layout Printer 4127M004AA Main Motor Interlock Switch Cooling Fan Motor Paper Empty Sensor Heater Lamp Paper Take-up Sensor Thermistor Paper Exit Sensor Thermostat Paper Take-up Solenoid Print Head Unit Power Unit Power Switch...
  • Page 31 PagePro 1200 Series General Information Controller PagePro 1200W shown below PWB-OP PWB-P PWB-M 4121s012 PWB-P Controller Board PWB-M Interface Board PWB-OP Operation Panel Board PagePro 1250E shown below PWB-P 4121s012 PWB-P Controller Board...
  • Page 32 PagePro 1200 Series General Information Second Paper Cassette Unit (option) PWB-A SW21 SL21 4127s014 Paper Empty Sensor PWB-A Connecting Board SL21 Paper Take-up Solenoid SW21 Cassette Type Detecting Switch...

  • Page 33: Electrical Parts Function

    PagePro 1200 Series General Information 3-6. Electrical Parts Function Printer Symbol Name Function A halogen lamp that supplies heat to the Fusing Heater Lamp Rollers (600 W) Supplies power to the following sections: - Drum Charge Brush: Charged voltage - Developing Sleeve Roller: Developing bias volt-...
  • Page 34 PagePro 1200 Series General Information Second Paper Cassette Unit (option) Symbol Name Function Controls gears and clutches to transmit the drive from the Main Motor to Paper Take-up Rollers. SL21 Paper Take-up Solenoid The drive is transmitted when the solenoid is ener- gized.

  • Page 35: Explanation Of Control Panel

    PagePro 1200 Series General Information 3-7. Explanation of Control Panel The control panel has two indicator lights (LEDs) and one button. C4127o006AA Error indicator (orange) Ready indicator (green) Panel button Indicator Lights Different combinations of the two indicator lights indicate the current printer status and let the user...
  • Page 36 PagePro 1200 Series General Information Indicator Status Ready indicator Error indicator Condition (green) (orange) Printer is off. Printer is ready to print. Rapid blinking Printer is warming up. Receiving data Blinking Processing data Printing Power on initialize Cancelling a print job...
  • Page 37 PagePro 1200 Series General Information Control Panel Button Function The panel button is used to perform the various operations as detailed below according to the status of the printer: • reset the counter • cancel a print job • print out the configuration page (PagePro 1250E only) •...
  • Page 38 PagePro 1200 Series General Information To Reset the Counter of the Toner Cartridge Perform the following procedure to reset the toner cartridge counter after you replace the toner car- tridge. 1. Turn off the printer. 2. While holding down the panel button, turn on the printer.
  • Page 39 PagePro 1200 Series General Information Test Print Function (PagePro 1250E only) The configuration page should be printed out in order to ensure that the printer is operating cor- rectly. 1. Make sure that: “ ” the orange Error indicator is off, and “...

  • Page 40: Electrical Service Parts On P.w.boards

    PagePro 1200 Series General Information 3-8. Electrical Service Parts on P.W.Boards PagePro 1250E PWB-P (Controller Board) LED2 LED3 CON1 CON3 DSW1 COM5 VR101 CON6 PJ12 PJ10 Symbol Item Explanation CON1 Connector Slot for 168-pin SDRAM-DIMM (max. 128MB) CON3 Connector USB (Revision 1.1 compliant)
  • Page 41 PagePro 1200 Series General Information PagePro 1200W WB-P (Controller Board) PWB-M (Interface Board) PWB-OP (Operation Panel Board) PWB-OP LED2 LED1 PWB-P PWB-M PJ104 PJ108 PJ105 IC101 IC103 PJ106 IC102 PJ10 PJ12 PJ3 PJ11 PJ13 PJ6 Symbol Item Explanation LED1 Green LED...
  • Page 42 PagePro 1200 Series General Information PU1 (Power Unit) CN1(2P) CN3(2P) VR61 CN2(7P) 4127s016 Protection Fuse (100-120 V area: 5 A, 125 V), (220-240 V area: 4 A, 250 V) Protection Fuse (100-120 V area: 12 A, 250 V), (220-240 V area: 6.3 A, 250V)
  • Page 43 PagePro 1200 Series General Information HV1 (High Voltage Unit) VR51 CN1(10P) 4127s017 Drum Charging Voltage terminal (DC-1400 V max) Developing Voltage terminal (DC-400 V max)) Developing Lower Seal Voltage terminal (DC-400 V max) Developing Toner Blade Voltage terminal (DC-700 V max) Image Transfer terminal (DC4300 V max/ DC-600 V max.)

  • Page 44: Timing Chart

    PagePro 1200 Series General Information 3-9. Timing Chart Print Starting Print command (/PRINT) Polygon Motor (M5) Main Motor (M1) Paper Take-up Solenoid (SL1) Paper Take-up Sensor (PS1) Drum Charge (output) Exposure (output) Development (output) Image Transfer (output) 4127s070 Print Ending...

  • Page 45: Mechanical/Electrical

    PagePro 1200 Series Mechanical / Electrical Mechanical/Electrical 4-1. Paper Path Paper can be fed into the printer either from the Multi-purpose Tray (PagePro 1200W: 150 sheets; PagePro 1250E 200 sheets) or Manual Feed Tray. The paper feed system can be extended to a 3-way system by Installing the Second Paper Cassette Unit (500 sheets).

  • Page 46: Paper Take-Up Section

    PagePro 1200 Series Mechanical / Electrical 4-2. Paper Take-up Section Multi-purpose Tray Mechanism • When the Paper Take-up Solenoid is energized, the drive of the Main Motor is transmitted to the Paper Take-up Roller via the Paper Take-up Gear (one-way clutch) to turn the Paper Take-up Roller one revolution.
  • Page 47 PagePro 1200 Series Mechanical / Electrical Paper Empty Detection There is a Paper Empty Sensor provided on the upper side of the Multi-purpose Tray. It functions to detect a paper-empty condition in the Multi-purpose Tray and the Manual Feed Tray.
  • Page 48 PagePro 1200 Series Mechanical / Electrical Cassette Type Detection The Second Paper Cassette Unit is provided with a Cassette Type Detecting Switch that comes with a lever. When the paper cassette is slid into position, the projections on the right-hand side of the cassette push the lever according to the size of the paper loaded in the cassette, thus turning off or on the Cas- sette Type Detecting Switch.

  • Page 49: Drum Charge

    PagePro 1200 Series Mechanical / Electrical 4-3. Drum Charge Overview • The PC Drum is charged with static electricity before laser exposure. • The Drum Charge Brush and the Pre-charge Film are used for the charging method. • The Drum Charge Brush and Pre-charge Film charging generate little ozone in the printer.

  • Page 50: Laser Exposure

    PagePro 1200 Series Mechanical / Electrical 4-4. Laser Exposure Laser exposure is the process of creating an invisible static charge image on the PC Drum by the laser beam emitted from the Print Head Unit. This process is controlled as follows in order to appropriately time image printing.
  • Page 51 PagePro 1200 Series Mechanical / Electrical PRINTING AREA • The controller sends the VIDEO signal at the appropriate paper size to the engine (Controller Board). • The controller determines the start point of printing according to the TOD signal (sub-scanning direction) sent from the engine (Controller Board) and the HSYNC signal.

  • Page 52: Development

    PagePro 1200 Series Mechanical / Electrical 4-5. Development Overview Toner is applied to the invisible static image on the PC Drum and a toner image (developed image) is created on the drum surface Toner Cartridge PC Drum 4121s032 4121s031 4110s034...
  • Page 53 PagePro 1200 Series Mechanical / Electrical Explanation of Each Part Name Description Toner Hopper Contains toner. Agitates the toner in the Toner Hopper and sends the toner to the Toner Agitating Screw Toner Transport Roller. Toner Transport Roller Transports the toner to the Sleeve Roller.

  • Page 54: Image Transfer

    PagePro 1200 Series Mechanical / Electrical 4-6. Image Transfer Overview • Image transfer is the process of transferring the toner image created on the PC Drum in the devel- oping process to paper. • Roller image transfer is used instead of corona image transfer as the image transfer method.
  • Page 55 PagePro 1200 Series Mechanical / Electrical Overview • The toner image transferred onto the paper is securely fixed to the paper. • A heat roller system is used as the fusing system. The toner image is fused by the Heat Roller heated by the Heater Lamp, and securely fixed by the pressure between the Heat Roller and Backup Roller.
  • Page 56 PagePro 1200 Series Mechanical / Electrical At 600 dpi The printer is initialized upon power supply. The printer then starts warming up and the Heater Lamp turns on. The temperature is controlled as follows. Mode 1 ° ° The temperature is controlled to maintain 125...
  • Page 57 PagePro 1200 Series Mechanical / Electrical Thermistor detecting temperature Warming-up 200°C Printing 190°C (600 dpi) 160°C Printing 155°C (1200 dpi) Standby 125°C Mode 1: Mode 2: 208sec Mode 3 1250E: 300sec 1200W: 90sec Temperature immediately after temperature control starts °...

  • Page 58: Paper Exit

    PagePro 1200 Series Mechanical / Electrical 4-8. Paper Exit Face-up/Face-down Selection Mechanism After fusing, the paper is ejected onto the Face-down Tray or the Face-up Tray by the Face-up/Face- down Selection Mechanism. An optional Face-up Tray can also be selected. Switching the paper exit to use the Face-up Tray is done with the Face-up/Face-down Selection Switch.

  • Page 59: Precautions For Maintenance/Disassembly

    PagePro 1200 Series Maintenance / Disassembly Precautions for Maintenance/Disassembly 5-1. Precautions for Disassembly Observe the following precautions whenever servicing the printer. • Be sure to unplug the printer from the outlet before attempting to service the printer. • To reassemble the printer, reverse the order of disassembly unless otherwise specified.
  • Page 60 PagePro 1200 Series Maintenance / Disassembly Instructions for Handling the PWBs with MOS ICs The following precautions must be observed when handling circuit boards with MOS (Metal Oxide Semiconductor) ICs. • During transportation or when in storage, new circuit boards must not be indiscriminately removed from their protective conductive bags.

  • Page 61: Maintenance Schedule List

    PagePro 1200 Series Maintenance / Disassembly 5-2. Maintenance Schedule List Replacement cycle Replacement cycle Part name Cleaning cycle (Multi-page printing) (Single-page printing) Drum cartridge none Approx. 20,000 prints Approx. 16,000 prints Toner cartridge none Approx. 6,000 prints Approx. 4,800 prints...
  • Page 62 PagePro 1200 Series Maintenance / Disassembly Illust D x L (mm) Illust D x L (mm) 3501 3504 3505 Tapping screw 3923 Tapping screw 9735 9742 3541 3544 9735 9742...

  • Page 63: Disassembly Procedures

    PagePro 1200 Series Maintenance / Disassembly 5-5. Disassembly Procedures Disassembly Procedure Chart Open the Top Cover. Toner Cartridge Drum Cartridge Paper Separator Unit Right Cover Image Transfer Roller Controller Board (PWB-P) Left Cover (10) (11) Paper Empty Sensor (PE1) Front Cover...
  • Page 64 PagePro 1200 Series Maintenance / Disassembly Open the Top Cover. Toner Cartridge Drum Cartridge Paper Separator Unit Right Cover Image Transfer Roller Controller Board (PWB-P) Left Cover (10) (11) Paper Empty Sensor (PE1) Print Head Unit (PH) Front Cover Paper Take-up Roller...
  • Page 65 PagePro 1200 Series Maintenance / Disassembly Second Paper Cassette Unit (18) Second Paper Take-up Roller (20) Connecting Board (PWB-A) (21) Cassette Type Detecting Switch (SW21) (22) Second Paper Take-up Solenoid (SL21)
  • Page 66 PagePro 1200 Series Maintenance / Disassembly Before Disassembly Procedure Before disassembling the machine, remove the following components: • Toner Cartridge • Drum Cartridge • Multi-purpose Tray • Face-up Tray (Option) 1. Push the Top Cover Release Button and fully open the Top Cover.
  • Page 67 PagePro 1200 Series Maintenance / Disassembly PagePro 1250E shown below Drum Cartridge 4127s028a Toner Cartridge 4127s028b 4127s101 Face-up Tray C4127o029...
  • Page 68 PagePro 1200 Series Maintenance / Disassembly Replacing the Image Transfer Roller 1. Swing down to the front the levers of the right and left bushings (white) on the Image Transfer Roller and remove the Image Transfer Roller from the Image Transfer Roller Holder.
  • Page 69 PagePro 1200 Series Maintenance / Disassembly Removal of the Paper Separator Unit 1. Place the printer with its backside down and remove the Paper Separator Unit (four screws). 4127s033 Removal of the Right Cover 1. Remove the Right Cover (two screws and tabs at three places).
  • Page 70 PagePro 1200 Series Maintenance / Disassembly Removal of the Controller Board (PWB-P) 1. Remove the panel and panel button (three screws). 2. Unplug all connectors (1200W: 12; 1250E: 11) from the Controller Board (PWB-P) and remove the Controller Board (PWB-P) (1200W: 11; 1250E: 11 screws).
  • Page 71 PagePro 1200 Series Maintenance / Disassembly Removal of the Left Cover 1. Remove the Left Cover (two screws and tabs at two places). NOTE • When reinstalling the Left Cover, first fit tabs (at two places on the bottom) of the Left Cover into the frame of the printer.
  • Page 72 PagePro 1200 Series Maintenance / Disassembly NOTE • When reinstalling the Front Cover, first fit tabs (at two places on the bottom) of the Front Cover into the frame of the printer. 4127s039...
  • Page 73 PagePro 1200 Series Maintenance / Disassembly Replacement of the Paper Take-up Roller 1. Remove the Right Cover, Left Cover, Paper Separator Unit, and Front Cover. 2. Place the printer with its backside down. 3. Unhook the spring and remove the right-hand side of the Paper Take-up Roller shaft from its bushing.
  • Page 74 PagePro 1200 Series Maintenance / Disassembly (11) Removal of the Paper Empty Sensor (PE1) 1. Remove the Right Cover, Left Cover, Paper Separator Unit, Front Cover, and Print Head Unit. 2. Remove the sensor fixing bracket and remove the Paper Empty Sensor (one connector).
  • Page 75 PagePro 1200 Series Maintenance / Disassembly (13) Removal of the Fusing Unit 1. Remove the Right Cover, Left Cover, Top Cover, and Rear Cover. 2. Remove the Fusing Unit (three screws and three connectors). NOTE • The Fusing Unit is to be replaced as a unit at about every 50,000 printed pages.
  • Page 76 PagePro 1200 Series Maintenance / Disassembly (14) Disassembly the Fusing Unit 1. Remove the sensor fixing bracket and the Paper Exit Sensor. 4127s045 2. Remove the Heater Lamp holding cover (one screw and one spring). 4127s046...
  • Page 77 PagePro 1200 Series Maintenance / Disassembly 3. Remove the two mounting screws. 4. Pressing the right and left tabs (at two places), separate the upper half of the Fusing Unit from the lower half. 4127s047 5. Remove the bushings and the Backup Roller.
  • Page 78 PagePro 1200 Series Maintenance / Disassembly 7. Remove the lamp holder (two screws). 8. Pull out the Heater Lamp. NOTES • Use care not to touch the lamp surface with bare hands. • Position the voltage mark on the gear side when reinstalling the lamp.
  • Page 79 PagePro 1200 Series Maintenance / Disassembly 11. Remove the Fusing Paper Separators (at four places). 12. Remove the Thermistor (one screw). NOTE • Route the harness as shown in Fig. 1 when reinstalling the Thermistor. 13. Remove the Thermostat (two screws).
  • Page 80 PagePro 1200 Series Maintenance / Disassembly (15) Removal of the Power Unit and High Voltage Board 1. Remove the Right Cover, Left Cover, Top Cover, Rear Cover, and Fusing Unit. 2. Unplug the connectors (PJ7 and PJ13) from the Controller Board and remove the harness from the cord holder.
  • Page 81 PagePro 1200 Series Maintenance / Disassembly 8. Remove the Paper Take-up Sensor (one connector). 4121s078 4127s055...
  • Page 82 PagePro 1200 Series Maintenance / Disassembly (16) Removal of the Main Motor Assy 1. Remove the Right Cover, Left Cover, Paper Separator Unit, Front Cover, Top Cover, Rear Cover, Fusing Unit, and Power Unit Assy. 2. Remove the gear plate (four screws).
  • Page 83 PagePro 1200 Series Maintenance / Disassembly 5. Remove the cartridge positioning plate (tabs at four places). 4127s064 6. Remove the Main Motor Assy (four screws). 4127s065...
  • Page 84 PagePro 1200 Series Maintenance / Disassembly (17) Replacement of the Second Paper Take-up Roller 1. Separate the printer and Second Paper Cassette Unit. 2. As shown in Fig. 1, remove Paper Take-up Rollers. (a) Pull up on the lever of the roller.
  • Page 85 PagePro 1200 Series Maintenance / Disassembly 3. Remove the Second Paper Take-up Unit (six screws). 4127s056 (19) Removal of the Connecting Board (PWB-A) 1. Remove the cover (one screw and two connectors) 2. Remove the Connecting Board (PWB-A) (two screws).
  • Page 86 PagePro 1200 Series Maintenance / Disassembly (20) Removal of the Cassette Type Detecting Switch (SW21) 1. Remove the Cassette Type Detecting Switch. 4127s060 (21) Removal of the Second Paper Take-up Solenoid (SL21) 1. Remove the Cover (one screw) 2. Second Paper Take-up Solenoid (SL21)(one screw and one connector)

  • Page 87: Adjustment

    PagePro 1200 Series Adjustment Adjustment 6-1. Adjustment of Image Registration After Mechanical Control Board (Controller Board) is replaced, be sure to make a print of an image sample. If the starting position of the image (registration gap (d)=4mm) in the sub-scanning direction is not suitable, adjust the gap by following the procedure described below.
  • Page 88 PagePro 1200 Series Adjustment...

  • Page 89: Troubleshooting

    PagePro 1200 Series Troubleshooting Troubleshooting 7-1. Paper Misfeed Detection Overview The printer determines if paper is left inside itself by detecting the status (H or L) of the signal out- put from the Paper Take-up Sensor (PS1) and the Paper Exit Sensor (PS3).
  • Page 90 PagePro 1200 Series Troubleshooting purpose Tray (Paper Take-up Solenoid is energized, causing the Paper Take-up Roller to start turning) or within about 0.45 sec. to 1.97 sec. (within about 0.9 sec. to 3.94 sec. at 1200 dpi) after the paper take-up sequence has been started in the Second Paper Cassette Unit.

  • Page 91: Pagepro 1250E Malfunction Detection

    PagePro 1200 Series Troubleshooting 7-2. PagePro 1250E Malfunction Detection When any of the following malfunctions is detected, the drive for all elements is turned OFF and the hardware error is displayed on the control panel and the Status Monitor installed in the PC.

  • Page 92: Pagepro 1200W Malfunction Detection

    PagePro 1200 Series Troubleshooting 7-3. PagePro 1200W Malfunction Detection When any of the following malfunctions is detected, the drive for all elements is turned OFF and the hardware error is displayed on the control panel and the Status Monitor installed in the PC.

  • Page 93: Troubleshooting For Paper Misfeeds

    PagePro 1200 Series Troubleshooting 7-4. Troubleshooting for Paper Misfeeds Paper misfeed occurred when the Power switch is turned ON Check Remedy Is paper left in machine? → Remove the paper. ↓ → Correct the Sensor lever movement. Do the Paper Take-up Sensor and Paper →...
  • Page 94 PagePro 1200 Series Troubleshooting Paper misfeed occurred at the paper exit section Check Remedy Is the leading edge out of the Exit Roller? → Replace PS1. ↓ Is the Image Transfer Roller deformed, → worn, or dirty with paper dust? Replace the Image Transfer Roller.

  • Page 95: Troubleshooting For Malfunctions

    PagePro 1200 Series Troubleshooting 7-5. Troubleshooting For Malfunctions No power Check Remedy Has the power cord been securely plugged → into the power outlet? Plug the power cord into the power outlet. ↓ Has the power cord been securely con- →...
  • Page 96 PagePro 1200 Series Troubleshooting Cause Remedy → Replace the Fusing Unit.Or, replace the Heater Lamp (H1) or Thermostat (TS1). Is there electrical conduction across con- nectors 1 and 3 of the Fusing Unit? → Replace the Power Unit (PU1) or Controller Board.
  • Page 97 PagePro 1200 Series Troubleshooting FATAL ERROR 03: Fuser Fan Cause Remedy Does the Cooling Fan Motor (M2) turn during a print Replace the Cooling Fan Motor (M2). cycle? Replace the Controller Board. FATAL ERROR 04: H.V Cause Remedy Replace the High Voltage Unit (HV1) High voltage malfunction replace the Controller Board.

  • Page 98: Image Quality Troubleshooting

    PagePro 1200 Series Troubleshooting 7-6. Image Quality Troubleshooting When an image problem occurs, exchange the Toner Cartridge and/or Drum Cartridge for a new one and determine whether the cause of the problem is due to one of the cartridges or something else in the printer.
  • Page 99 PagePro 1200 Series Troubleshooting Symptom Possible Cause Remedy Blank print No Toner Cartridge Install a Toner Cartridge. Toner empty Replace the Toner Cartridge. No Drum Cartridge Install a Drum Cartridge. Defective PC Drum Replace the Drum Cartridge. (end of life) Replace Print Head Unit.
  • Page 100 PagePro 1200 Series Troubleshooting Symptom Possible Cause Remedy Blank print No Toner Cartridge Install a Toner Cartridge. Toner empty Replace the Toner Cartridge. No Drum Cartridge Install a Drum Cartridge. Defective PC Drum Replace the Drum Cartridge. (end of life) Replace Print Head Unit.
  • Page 101 PagePro 1200 Series Troubleshooting Symptom Possible Cause Remedy Toner smudges on backside Replace the Fusing Unit or the Fusing Dust or damage on the Fusing Roller. Roller. Dust or damage on the Image Trans- Replace the Image Transfer Roller. fer Roller.
  • Page 102 PagePro 1200 Series Troubleshooting Symptom Possible Cause Remedy White/black lines and bands Scratch on the PC Drum Replace the Drum Cartridge. Replace the Print Head Unit. Defective Print Head unit Replace the Controller Board. 0951o222 Offset image Replace the Fusing Unit or the Fusing Defective Fusing Roller Roller.

  • Page 103: Wiring Diagrams

    Wiring Diagrams 8-1. PagePro 1250E Wiring Diagram N.C. +24V +24V +24V POLYGON_CTL CN1D S_SCAN S_SCAN PWB-D FUSER_LAMP FUSER_LAMP LD_APC2 LD_APC2 LD_APC1 LD_APC1 HEAT_N L_DATA L_DATA N.C. HEAT_L LD_POWER LD_POWER NON_SW24V N.C. +24V ANODE(PS3) THERMISTOR PJ10 N.C. +24V FEED1 PJ12 ANODE(PE1) PWB-P P_ENP1 CN1F...

  • Page 104: Pagepro 1200W Wiring Diagram

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