Minolta Di450 Service Manual
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Minolta Di450 Service Manual

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Di450/Di550

SERVICE MANUAL

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FIELD SERVICE

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Summary of Contents for Minolta Di450

  • Page 1: Service Manual

    Return to Main Form Return to Service Form Exit Program Di450/Di550 SERVICE MANUAL FIELD SERVICE...
  • Page 2 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. Different markings are used to denote specific meanings as detailed below. Indicates a potentially hazardous situation which, if not avoided, WARNING could result in death or serious injury.
  • Page 3 4. Handle the power cord with care and never use a multiple outlet. • Do not break, crush or otherwise damage the power cord. Placing a heavy object on the power cord, or pulling or bending it may damage it, resulting in a possible fire or electric shock.
  • Page 4 CAUTION 1. Precautions for Service Jobs • A toothed washer and spring washer, if used originally, must be reinstalled. Omitting them may result in contact failure which could cause an electric shock or fire. • When reassembling parts, make sure that the correct screws (size, type) are used in the correct places.
  • Page 5 5. Precautions for the Laser Beam (Only for Products Employing a Laser) • Removing the cover marked with the following caution label could lead to possi- ble exposure to the laser beam, resulting in eye damage or blindness. Be sure to unplug the power cord before removing this cover.

  • Page 6: Other Precautions

    Other Precautions • To reassemble the product, reverse the order of disassembly unless otherwise specified. • While the product is energized, do not unplug or plug connectors into the circuit boards or harnesses. • The magnet roller generates a strong magnetic field. Do not bring it near a watch, floppy disk, magnetic card, or CRT tube.
  • Page 7 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. Germany VORSICHT! Explosionsgefahr bei unsachgemäßem Austausch der Batterie. Ersatz nur durch denselben oder einen vom Hersteller empfohlenen ähnlichen Typ.
  • Page 8 PRECAUTIONS FOR SERVICE When performing inspection and service procedures, observe the following precautions to prevent mishandling of the machine and its parts. ✽ Depending on the model, some of the precautions given in the following do not apply. Precautions Before Service •...
  • Page 9 Precautions for Dis/Reassembly • Be sure to unplug the copier from the outlet before attempting to service the copier. • The basic rule is not to operate the copier anytime during disassembly. If it is absolutely necessary to run the copier 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 10 Handling of PWBs 1. During Transportation/Storage: • During transportation or when in storage, new P .W. Boards must not be indiscriminately removed from their protective conductive bags. • Do not store or place P.W. Boards in a location exposed to direct sunlight and high tem- perature.
  • Page 11 Handling of the PC Drum ✽ Only for Products Not Employing an Imaging Cartridge. 1. During Transportation/Storage: • Use the specified carton whenever moving or storing the PC Drum. • The storage temperature is in the range between –20°C and +40°C. •...
  • Page 12 3. Soak a small amount of either ethyl alcohol or iso- propyl alcohol into a clean, unused Dust-Free Cot- ton Pad which has been folded over into quarters. Now, wipe the surface of the PC Drum in one con- tinuous movement from its rear edge to its front edge and off its surface one to two times.
  • Page 14 DIS/REASSEMBLY, ADJUSTMENT...
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  • Page 20: Service Instructions

    SERVICE INSTRUCTIONS 1-1. IDENTIFICATION OF FUSES AND CIRCUIT BREAKERS Inverter Board DC Power Supply Main INV 250 V 2 A (F1) PU1 <100 V Areas> 125 V 15 A (F1) Power Supply Board 125 V 4 A (F2) PWB-C 250 V 4 A (6 pcs.) 125 V 15 A (F3) 125 V 6.3 A (F4)

  • Page 21: Parts Which Must Not Be Touched

    NOTES • The Organic Photoconductor Drum is softer than CdS and Selenium Drums and is there- fore susceptible to scratches. • Even when the PC Drum is only locally dirtied, wipe the entire surface. • Do not expose the PC Drum to direct sunlight. Clean it as quickly as possible even under interior illumination.
  • Page 22 DISASSEMBLY/REASSEMBLY 2-1. DOORS, COVERS, AND EXTERIOR PARTS: IDENTIFICATION AND REMOVAL PROCEDURES 4002D025AC 4002D026AC...
  • Page 23 Part Name Removal Procedure Original Glass Remove No.3. EDH Glass Remove No.3. EDH Glass Holder Raise No.13. ¡ Remove four EDH Glass Holder mounting screws. Raise No.13. ¡ Swing down No.5. ¡ Remove No.18. ¡ Remove Control Panel No.11. ¡ Remove five Control Panel mounting screws. ¡ Unplug two connectors.
  • Page 24 2-2. REMOVAL OF CIRCUIT BOARDS AND OTHER ELECTRICAL COMPONENTS • When removing a circuit board or other electrical component, refer to “Handling of PWBs” and follow the corresponding removal procedures. • The removal procedures given in the following omit the removal of connectors and screws securing the circuit board support or circuit board.
  • Page 25 Symbol Part Name Removal Procedure Remove the Scanner. ¡ Unplug two connectors and Inverter Board remove two screws and the Inverter Board Mounting Bracket Assy. ¡ INV Remove the Right Cover. ¡ Remove the Rear Cover. ¡ PWB-A Master Board Remove three screws and the Cover.
  • Page 26 Removal of the Image Processing Board 1. Remove the Rear Cover and Right Cover. 2. Remove the Original Glass and EDH Glass. 3. Remove eight screws and the CCD Unit Cover. 4002D043AB 4. Remove four screws and the cover on the left. 5.
  • Page 27 10. Unplug two connectors, one flat cable. 4002D034AC 11. Unplug five connectors, two flat cables. 12. Remove the harness from the edge cover. 4002D258AB 13. Unplug four connectors. 14. Remove five screws and the Imaging Processing Board Mounting Bracket Assy. 4002D515AA 15.
  • Page 28 2-3. Removal of the Unit Removal of the Multi Bypass Unit 1. Open the Upper Right Door. 2. Remove two connectors and the cover. 3. Unplug two connectors. 4002D027AD 4. Remove two screws and the Upper Right Cover. NOTE When reinstalling the Upper Right Cover, Adjustment of the Upper Right Door (Multi Bypass Unit).
  • Page 29 8. Swing down the Transport Section Release Lever. 9. Holding up the Suction Unit, remove the compres- sion coil. 4002D031AD 10. Remove the Suction Unit by sliding it to the right. 1136D101AA NOTE When reinstalling the Suction Unit, make sure that two positioning pins on the copier fit into the positioning holes in the Suction Unit.
  • Page 30 Removal of the IR Unit 1. Swing down the Front Door and slide out the Developer Unit. 2. Remove the Right Door, Left Door, Rear Upper Cover, Rear Cover and Control Panel. 3. Slide out the Fusing Unit. 4. Remove four screws and the Cover. NOTE Do not remove the belt mounting screw on the cover.
  • Page 31 11. Unplug two connectors, one flat cable from the Imaging Processing Board. 4002D034AC 12. Unplug four connectors at the front. 4002D035AD 13. Remove five screws and the Cover. Cover 4002D238AC 14. Remove five screws and the Master Board Mount- ing Bracket Assy. 4002D069AC 15.
  • Page 32 17. Remove two screws and the relay connector. 4002D037AB 18. Remove four screws and the right mounting bracket. 4002D038AC 19. Remove four screws and the left mounting bracket. 4002D039AC 20. Remove five screws that secure the IR Unit on the front side.
  • Page 33 22. Remove the IR Unit. 4002D042AB Removal of the PH Unit NOTES • Do not place the PH Unit upside down, tilt it excessively, or subject it to excessive shock. • Replace the PH Unit as one unit. • NEVER attempt to disassemble or adjust the PH Unit. •...
  • Page 34 7. Remove three screws and the PH Cooling Fan Motor mounting bracket Assy. 8. Remove six screws and the mounting bracket. 4002D046AB 9. Remove the harness from two cord clamps and one edge cover. 4002D047AC 10. Unplug two relay connectors and remove the har- ness from the cord clamp.
  • Page 35 Removal of the Developing Unit 1. Swing down the Front Door. 2. Swing down the Transport Section Release Lever. 4002D051AB 3. Loosen two screws and remove the Developing Unit. 4002U072AB Removal of the Sub Hopper Unit 1. Swing down the Front Door and slide out the Developing Unit.
  • Page 36 Removal of the Upper Left Door (Exit/Duplex Switching Unit) 1. Swing down the Front Cover and slide out the Fus- ing Unit. 2. Remove the cable from the spring. 4002D261AA 3. Remove the Rear Cover. 4. Open the Upper Left Door. 5.
  • Page 37 2-4. PAPER TAKE-UP/TRANSPORT SECTION Removal of the Paper Take-Up Roll, Paper Feed Roll and Paper Separator Roll Assy. 1. Remove the Right Door. 2. Remove one screw and the Paper Guide Plate from each drawer. 4002D057AB 3. Remove the Paper Separator Roll/Paper Guide Plate Assy.
  • Page 38 6. Unbending one tab of the holder, remove the holder. 4002D061AB 7. Remove the Paper Take-Up Roll and Paper Feed Roll. 4002D062AB Cleaning of the Paper Take-Up Roll and Paper Feed Roll 1. Remove the Paper Separator Roll Mounting Bracket Assy. 2.
  • Page 39 Removal of the Drawer Lift-Up Motor 1. Remove the Right Door. 2. Slide out the drawer and remove one screw and the right stopper. 4002D065AB 3. Pushing the tab on the left rail, pull out the drawer. 4002D066AC 4. Remove three screws and the Drawer Set Sensor Mounting Bracket Assy.
  • Page 40 8. Disassemble the Drawer Lift-Up Unit. 1156D022AA Removal of the Upper and Lower Transport Rollers 1. Swing down the Front Door and slide out the Cover Developing Unit. 2. Slide out the 1st Drawer. 3. Remove the Rear Cover. 4. Remove the Right Cover. 5.
  • Page 41 8. Remove three screws and the Power Supply Board Mounting Bracket Assy. 4002D070AB 9. Remove three screws and the Flywheel. 4002D071AB 10. Remove three screws and the Transport/Synchro- nizing Rollers Drive Assy. 4002D073AB 11. Snap off the E-ring and remove the gear. 12.
  • Page 42 15. Unhook one spring and snap off two E-rings. Then remove the bushings from the front end of the Upper and Lower Transport Roller. 4002D240AB 16. Remove the Upper Transport Roller. 17. Remove the Lower Transport Roller. 4002D241AA Cleaning of the Upper Transport Roller 1.
  • Page 43 Cleaning of the Vertical Transport Rollers 1. Open the Upper Right Door. 2. Using a soft cloth dampened with alcohol, wipe each roller clean of dirt. 4002D244AA Removal of the Synchronizing Roller 1. Swing down the Front Door and slide out the Cover Developing Unit.
  • Page 44 8. Remove three screws and the Flywheel. 4002D071AB 9. Unplug two connectors and remove five screws and the Developing Unit Drive Assy. 4002D072AB 10. Unplug two connectors and remove three screws and the Transport/Synchronizing Rollers Drive Assy. 4002D073AB 11. Snap off the E-ring and remove the gear. 12.
  • Page 45 14. Snap off the E-ring and remove the bushing from the front end of the Upper Synchronizing Roller. 15. Remove the Upper Synchronizing Roller. 4002D076AB (10) Cleaning of the Upper Synchronizing Roller 1. Swing down the Front Door and slide out the Developing Unit.
  • Page 46 (12) Cleaning of the Lower Synchronizing Roller 1. Swing down the Transport Section Release Lever. 2. Using a brush or a vacuum cleaner, clean the Lower Synchronizing Roller. 4002D081AB (13) Removal of the Synchronizing Paper Dust Remover 1. Swing down the Front Door and slide out the Developing Unit.
  • Page 47 NOTE When only the Paper Dust Remover is to be replaced, affix the new one along the reference line as shown on the left. 1 mm 4002D517AA (15) Cleaning of the Paper Dust Remover 1. Remove the Synchronizing Paper Dust Remover Assy.
  • Page 48 5. Remove four Suction Belts. 4002D085AB 6. Remove the Suction Roller as shown on the left. 4002D086AB (17) Disassembly of the Multi Bypass Unit 1. Remove the Right Door. 2. Remove four screws and the Separator Guide Plate Assy. 4002D087AB 3.
  • Page 49 5. Snap off the C-clip and remove the Separator Roll Assy. 1136D109AA 6. Remove five screws and the Solenoid Mounting Bracket Assy. NOTE Whenever a solenoid has been replaced or a solenoid mounting screw removed, be sure to adjust the posi- tion of the solenoid.
  • Page 50 11. Snap off the E-ring and remove the Paper Take-Up Roll. 4002D094AB (18) Cleaning of the Multi Bypass Paper Take-Up Roll/Paper Feed Roll 1. Using a soft cloth dampened with alcohol, clean the Paper Take-Up Roll/Paper Feed Roll. 4002D095AB (19) Cleaning of the Multi Bypass Paper Separator Roll Assy. 1.

  • Page 51: Optical Section

    2-5. OPTICAL SECTION Cleaning of the Original Glass and EDH Glass 1. Wipe clean the Original Glass and EDH Glass with a soft cloth. 4002O262AB Cleaning of the Mirrors 1. Remove the Original Glass. 2. Wipe the surface of each mirror clean of dirt using a soft cloth.
  • Page 52 Cleaning of the Scanner Rails/bushings 1. Remove the Original Glass. 2. Wipe clean the Scanner Rails/bushings with a soft cloth. NOTE Apply lubricant to the Scanner Rails/Bushings after they have been cleaned. 4002D100AA Cleaning of the PH Glass 1. Swing down the Front Door and slide out the Developing Unit.
  • Page 53 Scanner mounting screws NOTE Do not remove the Scanner positioning screws. Scanner positioning screws 4002D264AB 4. Swing the Scanner counterclockwise and take it out of the copier. NOTE At this point, the Scanner is kept connected to a flat cable and cannot be taken off. 4002D102AB 5.
  • Page 54 Removal of the EDH Glass 1. Remove four screws and the EDH Glass Holder. 2. Remove the EDH Glass. 4002D245AB Removal of the Scanner Drive Cable 1. Remove the Original Glass and EDH Glass. 2. Remove the Left Cover, Right Cover, Rear Upper Cover and Control Panel. 3.
  • Page 55 9. Remove one screw and the slide the rear pulley and bushing toward the front. 4002D113AA 10. Remove the Scanner Drive Gear, pulleys and bushings at the front and rear, and the shaft. 4002D114AD (10) Winding of the Scanner Drive Cable Pulley F Pulley E Pulley D...
  • Page 56 2. Wind the fixed bead end of the cable around the pulley five turns clockwise, from the rear toward the front side. 4002D003AA 3. Wind the hook end of the cable around the pulley five turns counterclockwise, from the front toward the rear side.
  • Page 57 7. Wind the hook end of the cable around the pulley five turns counterclockwise, from the rear toward the front side. NOTE Make sure that no part of the cable rides on the other. 4002D007AA 8. Slip the Cable Holding Jig onto the pulley to secure the cable in position.
  • Page 58 13. Slide the rear pulley and bushing to the rear and secure install one mounting screw. 4002D118AD Front Pulley C 14. Wind the bead end of the cable around pulley C and pulley B, then hook the bead onto the Adjust- able Anchor.
  • Page 59 18. Wind the hook end of the cable around pulley D and pulley E. Pulley E Pulley D 4002D011AA 19. Fit the hook end of the cable into the groove in the Cable Guide and hook the spring. Cable Guide 4002D120AB 20.

  • Page 60: Developing Unit

    2-6. DEVELOPING UNIT Remove of the Developing Unit 1. Swing down the Front Door and slide out the Developing Unit. 2. Move the PC Drum Charge Corona to the rear, raise it, and take it off. 4002U015AA 3. Loosen the two screws of the PC Drum stopper and remove the PC Drum stopper.
  • Page 61 6. Remove two screws and the Stopper and Devel- oper Scattering Prevention Plate. 4002D125AB 7. Remove two screws and the Cleaning Blade. 4002D127AB NOTE When reinstalling the Cleaning Blade, press the blade tightly up against the mounting bracket. 1136D173AA 8. Remove two screws, unplug one connector, and remove the ATDC Sensor.
  • Page 62 Coupling Holder NOTE When reinstalling the PC Drum Paper Separator Fin- ger Holder Assy., fit the collar of the assy onto the cou- pling holder in the rear. Collar 1134D047AA 11. Remove the PC Drum Paper Fingers and AIDC Sensor Board as shown below. Assy AIDC Sensor Board 4002D128AB...
  • Page 63 Cleaning of the Developer Scattering Prevention Plate 1. Using a brush, whisk dust off the Developer Scat- tering Prevention Plate. 4002D129AA Cleaning of the DS Positioning Collars 1. Using a brush or a soft cloth dampened with alco- hol, clean the DS Positioning Collars. 1136D177AA Cleaning of the Toner Antispill Trap 1.
  • Page 64 2. Remove the Toner Bottle from Main Hopper. Insert a brush through the toner port and into the toner. 4002U022AA 3. Apply toner to the entire surface of the new Clean- ing Blade. 4002D132AA 4. Using the brush, apply lubricant shipped with the Cleaning Blade to the two side seals shown.
  • Page 65 7. Apply a thin coat of toner to the surface of the PC Drum. 4002U023AB 8. Holding onto the both sides of the PC Drum with hands, turn the PC Drum a half turn in the direction of the arrow. 4002U024AC 9.
  • Page 66 3. Turning the Bucket Roller, pour fresh developer evenly into the chamber. NOTES • Shake the packet of developer well before opening • When the developer has been replaced, clear the counts of “Developer 1” and “Developer 2” of “PM” of 1134D051AA “Counter”...
  • Page 67 NOTE When reinstalling the Toner Antispill Plate and Toner Antispill Seal, press them in the direction of the arrows. 4002D139AB (10) Cleaning of the Toner Antispill Seal 1. Remove the Toner Antispill Seal. 2. Using a brush, clean the Toner Antispill Seal. 4002D140AA (11) Removal of the Main Erase Lamp 1.
  • Page 68 3. Using a soft cloth dampened with alcohol, wipe clean the Main Erase Lamp Filter. 1136D187AA (13) Removal of the Ozone Filter (PC Drum Charge Corona) 1. Swing down the Front Door. 2. Swing out the Main Hopper. 3. Slide out the Ozone Filter. 4002D143AB (14) Removal of the Ozone Filter (Image Transfer/Paper Separator Coronas) 1.
  • Page 69 2-7. PC DRUM CHARGE CORONA AND IMAGE TRANSFER/ PAPER SEPARATOR CORONAS Removal of the PC Drum Charge Corona 1. Swing down the Front Door and slide out the Developing Unit. 2. Move the PC Drum Charge Corona to the rear, raise it, and take it off.
  • Page 70 NOTE When handling the Comb Electrode, be sure to hold it onto its both ends. 10 mm 17 mm 4002D147AB 6. Wipe clean the Housing with a soft cloth. 1139D177AA Cleaning of the PC Drum Charge Corona Grid Mesh 1. Blow all foreign matter off the Grid Mesh with a blower brush.
  • Page 71 Cleaning of the Comb Electrode 1. Clean Comb Electrode using the PC Drum Charge Corona Cleaning Lever. 1156D072AA Removal of the Image Transfer/Paper Separator Coronas 1. Swing down the Front Door. 2. Pull out the Transfer/Paper Separator Coronas. 1134D062AA Cleaning of the Image Transfer Corona Wire 1.
  • Page 72 Removal of the Image Transfer Corona Wire 1. Remove the End Caps from the front and rear ends of the Unit. 4002D149AA 2. Remove the corona wire, first at the spring end. 4002D150AA Cleaning of the Paper Separator Corona Wire 1.
  • Page 73 Removal of the Paper Separator Corona Wire 1. Remove the End Caps from the front and rear ends of the Unit. 4002D149AA 2. Remove the four Paper Guides. 4002D151AA 3. Remove the corona wire, first at the spring end. 4002D150AA (10) Cleaning of the Image Transfer/Paper Separator Coronas Housing 1.
  • Page 74 (11) Cleaning of the Pre-Image Transfer Guide Plate 1. Using a soft cloth dampened with alcohol, wipe clean the Pre-Image Transfer Guide Plate. 4002D152AA D-55...

  • Page 75: Fusing Unit

    2-8. FUSING UNIT Disassembly of the Fusing Unit 1. Slide out the Fusing Unit. 2. Remove two screws and the Fusing Unit Front Cover. 4002D153AB NOTE When reinstalling the Front Cover, hook the tab into position. 4002D266AA 3. Remove four harness holders. 4.
  • Page 76 9. Remove four harness holders. 10. Remove the Upper Fusing Roller Heater Lamp har- ness from one wiring saddle. 11. Unplug two connectors of the Heater Lamp on the rear. 12. Remove the Upper and Lower Fusing Roller Heater Lamp harnesses from three edge covers. 4002D157AB 13.
  • Page 77 19. Remove two screws and the Web Roller Assy. 4002D162AD 20. Remove two springs. 21. Remove one shoulder screw and the Lower Exit Guide Assy. 4002D165AA NOTE When reinstalling the Upper Fusing Guide Plate Assy, press both ends of the guide plate up against the frame.
  • Page 78 NOTE When tightening the roller pressure screws with the springs installed, tighten the front and rear ones alter- nately until there is no clearance in the mounting bracket. 4002D167AB 24. Remove two screws and the rear holder. 4002D168AA 25. Remove two screws and the front holder. 4002D169AA 26.
  • Page 79 27. Remove one shoulder screw and the Pre-Fusing Guide Plate. 28. Remove two springs. 4002D172AA NOTE When reinstalling the Pre-Fusing Guide Plate, make sure that the rear harness is on the inside of the shoul- der screw. 4002D173AA 29. Remove one E-ring, two shoulder screws, and two gears.
  • Page 80 Removal of the Upper Fusing Paper Separator Fingers 1. Remove the Upper Fusing Guide Plate Assy. 2. Remove five springs. 3. Slide out the shaft to remove five Upper Fusing Paper Separator Fingers. 4002D177AA Cleaning of the Upper Fusing Paper Separator Fingers 1.
  • Page 81 Removal of the Upper Fusing Roller Thermistor 1. Slide out the Fusing Unit. 2. Unplug one connector. 3. Remove one screw and the Upper Fusing Roller Thermistor Assy. 4002D159AD 4. Remove one screw and the Upper Fusing Roller Thermistor. 4002D182AB Cleaning of the Upper Fusing Roller Thermistor 1.
  • Page 82 5. Remove the rubber stopper, and slide out the shaft. 6. Remove the Lower Fusing Roller Thermistor. 4002D185AB Cleaning of the Lower Fusing Roller Thermistor 1. Remove the Lower Fusing Roller Thermistor Assy. 2. Using a soft cloth dampened with oil, wipe the Lower Fusing Roller Thermistor clean of dirt.
  • Page 83 (12) Removal of the Web Roller 1. Remove the Web Roller Assy. 2. Remove two screws and the Web Roller bushing and Web Take-Up Roller bushing. NOTE When reinstalling the Web Roller bushing and Web Take-Up Roller bushing, ensure that they are in correct position without being tilted or out of position.
  • Page 84 (14) Removal of the Misfeed Removal Knob Bushing 1. Slide out the Fusing Unit. 2. Remove one E-ring and the gear and bearing. 4002D193AC 3. Remove the Misfeed Removal Knob Assy. and bushing. 4002D194AB (15) Removal of the Fusing Unit Drive Coupling Gear 1.

  • Page 85: Adjustment Jigs And Tools Used

    ADJUSTMENT 3-1. ADJUSTMENT JIGS AND TOOLS USED 1. Front Door Interlock Switch 2. Predrive Inhibit Switch Actuating Jig Actuating Jig 1136D001AA 1136D005AA 3. Scanner Positioning Jig 4. Scanner Positioning Jig (Front) (Rear) 4002D505AA 4002D504AA 5. Sleeve/Magnet Roller 6. D.B. Adjusting Jigs Positioning Jig 1136D003AA 1074D129AA...
  • Page 86 3-2. ADJUSTMENT REQUIREMENTS LIST Adjustment Item Requirements Ref. Page D-79 Touch Panel Adj. Automatically adjusted D-80 Orig. Size Adjust D-81 F8 ATDC Sensor D-82 F5 AIDC Sensor D-83 Registration (CD) 5.0 ± 0.5 mm D-85 Registration (FD) D-87 Lead Edge Erase...
  • Page 87 3-3. ADJUSTMENT OF SWITCHES Microswitches The following microswitches are used in various parts of this copier. Blue (NC) Yellow (NO) Red (COM) Red (COM) 1136D007AA 1136D008AA Wiring for the NO Type Wiring for the NC Type NC (Normally-Closed) : Current flows between NC and COM when the actuator is open.
  • Page 88 Adjustment of Front Door Interlock Switch 1. Swing down the Front Door. 2. Remove the Left Cover. 3. Slide out the Fusing Unit. 4. Remove four screws and the Cover. NOTE Do not remove the belt mounting screw on the cover. 4002D196AC 5.
  • Page 89 3-4. ADJUSTMENT OF BELT TENSION Checks after Adjustment • Turn the Timing Belt and check that all the Pulleys and grooves of the Belt fit securely. • Each Belt should flex a little when the Belt is lightly pressed with a finger. Reference Since a given tension is applied by a tension spring to the Tension Lever that maintains the tension of each timing belt, adjustment is completed by re-tightening the mounting screw...
  • Page 90 7. Loosen two screws by which the Tension Lever 2 is Tension Lever 2 mounted as shown on the left and then re-tighten 4002D202AC Adjustment of the Scanner Motor Timing Belt 1. Remove the Rear Upper Cover. 2. Loosen three screws on the Scanner Motor mount- ing bracket and then re-tighten them.
  • Page 91 3-5. SOLENOID POSITION ADJUSTMENT Adjustment of Manual Feed Paper Pick-Up Solenoid Requirement The Paper Stoppers should be fixed perpendicularly when the Pick-Up Solenoid is ON. Adjustment Procedure 1. Remove the Right Cover. 2. Remove five screws and the Manual Feed Paper Pick-Up Solenoid mounting bracket Assy.
  • Page 92 ➀ 5. Move the Pick-Up Solenoid in the direction of arrow , then slowly move it in the direc- ➁ tion of arrow 6. Move the Pick-Up Solenoid up to the position where the Lock Lever of the Paper Stop- per becomes perpendicular (the position where the Paper Stopper is locked).
  • Page 93 Adjustment of Turnover Roller Retraction Solenoid Requirement The gap between the E-ring of the plunger and the Retraction Solenoid should be 3 ± 0.2 mm when the Retraction Solenoid OFF. Adjustment Procedure 1. Slide out the Fusing Unit. 2. Loosen two screws by which the Retraction Sole- noid is mounted.
  • Page 94 Adjustment of Exit/Duplex Switching Solenoid Requirement The gap between the E-ring of the plunger and the Switching Solenoid should be 3 ± 0.2 mm when the Switching Solenoid OFF. Adjustment Procedure 1. Remove the Left Cover. 2. Slide out the Fusing Unit. 3.
  • Page 95 Positioning of the PC Drum Paper Separator Fingers (Separator Finger Solenoid) Requirement The gap between the three PC Drum Paper Separator Fingers and the PC Drum should be 0.3 to 1.0 mm when the Separator Finger Solenoid OFF. NOTE Use care not to deform the Separator Fingers during the adjustment procedure. Adjustment Procedure 1.
  • Page 96 Adjustment of Turnover Route Switching Solenoid Requirement The gap between the E-ring of the plunger and the Switching Solenoid should be 3 ± 0.2 mm when the Switching Solenoid OFF. Adjustment Procedure 1. Remove the Left Cover. 2. Loosen two screws by which the Switching Sole- noid is mounted.
  • Page 97 3-6. ACCESSING THE TECH. REP. MODE AND ADJUST MODE Accessing the Tech. Rep. Mode 1. Press the Utility key. 2. Touch [Meter Count]. 3. Press the following keys in this order: Stop ¡ 0 ¡ 0 ¡ Stop ¡ 0 ¡ 1 Accessing the Adjust Mode 1.
  • Page 98 3-7. ELECTRICAL/IMAGE ADJUSTMENT Touch Panel Adj. Make this adjustment after either of the following procedures have been performed: • Memory Clear • Control Panel replacement Adjustment Procedure 1. Call the Tech. Rep. mode to the screen. 2. Touch [Tech. Rep. Choice] and [System Set], in that order. 3.
  • Page 99 Orig. Size Adjust Make this adjustment after any of the following procedures have been performed: • Memory Clear • The original size is incorrectly detected • Replacement of the CCD Unit and Scanner parts • An Original Size Detecting Sensor has been replaced or added Adjustment Procedure 1.
  • Page 100 F8 ATDC Sensor Make this adjustment after any of the following procedures have been performed: • Developer replacement • ATDC replacement • Memory Clear NOTE Make this adjustment before running an F5 AIDC Sensor operation. Adjustment Procedure 1. Load the Developing Unit with fresh developer. 2.
  • Page 101 F5 AIDC Sensor Make this adjustment after any of the following procedures have been performed: • Developer replacement • ATDC replacement • Memory Clear NOTE This adjustment must be made after F8 ATDC Sensor. Adjustment Procedure 1. Turn the Power Switch ON. 2.
  • Page 102 Registration (CD) Requirement Width A on the test pattern output should fall within the following range. lead edge 1155D154AB Specification Adjust Mode Setting Range 5.0 ± 0.5 mm Registration (CD) -8.2 to +8.2 This adjustment must be made after the PH Unit has been replaced. Adjustment Procedure 1.
  • Page 103 7. Press the Clear key to clear the current Use to clear the setting value. setting value. Use to enter the setting value. Use to change the + or - sign. 4002D510CB 8. Use the 10-key pad to change the setting value.
  • Page 104 Registration (FD) Requirement Width A on the test pattern output should fall within the following range. lead edge 1155D155AB Specification Adjust Mode Setting Range 5.0 ± 0.5 mm Registration (FD) -8.2 to +8.2 This adjustment must be made after the PH Unit has been replaced. Adjustment Procedure 1.
  • Page 105 6. Press the Clear key to clear the current Use to clear the setting value. setting value. Use to enter the setting value. Use to change the + or - sign. 4002D510CB 7. Use the 10-key pad to change the setting value.
  • Page 106 Lead Edge Erase Requirement Width A on the test pattern output should fall within the following range. NOTE The measurement shall be taken at the center on the leading edge of the paper. 1155D156AB Specification Adjust Mode Setting Range 3.0 ± 1.0 mm Lead Edge Erase 0 to 5 This adjustment must be made after the PH Unit has been replaced and following Registra-...
  • Page 107 6. Press the Clear key to clear the current setting value. Use to clear the setting value. Use to enter the setting value. 4002D519AA 7. Use the 10-key pad to change the setting value. Setting Value 4002D512CB Setting Instructions If width A is longer than the specifications, make the setting value smaller than the current one.
  • Page 108 Trail Edge Erase Requirement Width A on the test pattern output should fall within the following range. NOTE The measurement shall be taken at the center on the trailing edge of the paper. 1155D157AB Specification Adjust Mode Setting Range 3.0 ± 1.0 mm Trail Edge Erase 0 to 5 This adjustment must be made after the PH Unit has been replaced and following Registra-...
  • Page 109 6. Press the Clear key to clear the current setting value. Use to clear the setting value. Use to enter the setting value. 4002D519AA 7. Use the 10-key pad to change the setting value. Setting Value 4002D513CB Setting Instructions If width A is longer than the specifications, make the setting value smaller than the current one.
  • Page 110 Loop Adjustment Requirement Adjust so that a correct loop is formed at part A when paper is fed through. Specification Adjust Mode Setting Range Approx. 4.0 mm (visual) Loop Adjustment -3 to +3 This adjustment is to be made when any of the following symptoms occurs: variation in the amount of print leading edge void, paper skew, folded edge, and misfeed.
  • Page 111 If the loop length falls outside the specified range, perform the following adjustment steps. 4. Call the Adjust mode to the screen. 5. Touch [Printer]. 6. Touch [Loop Adjustment]. 7. Touch [Drawer]. 8. Press the Clear key to clear the current Use to clear the setting value.
  • Page 112 (10) Erasure Width Requirement Adjust so that no shade of the Original Scale is produced on the sample copy. Adjust Mode Setting Range Erasure Width 0 to 5 This adjustment must be made when a shadow is produced from the Original Scale. Adjustment Procedure 1.
  • Page 113 11. Place a sheet of A3 or 11 × 17 paper on the Origi- nal Glass and lower the Original Cover. 12. Make a copy in the full size (× 1.000) mode. 13. Check to see if a shadow of the Original Scale is produced on the sample copy.
  • Page 114 (11) Zoom (CD) Requirement Adjust to eliminate any difference in width between the original test pattern and a test pat- tern copy. Adjust Mode Setting Range Zoom (CD) 0.990 to 1.010 This adjustment must be made when the CCD Unit has been replaced. Adjustment Procedure 1.
  • Page 115 12. Call the Adjust mode to the screen. 13. Touch [IR]. 14. Touch [Zoom (CD)]. 15. Press the Clear key to clear the current setting value. Use to clear the setting value. Use to enter the setting value. 4002D519AA 16. Use the 10-key pad to change the setting value.
  • Page 116 (12) Zoom (FD) Requirement Adjust to eliminate any difference in width between the original test pattern and a test pat- tern copy. Adjust Mode Setting Range Zoom (FD) 0.990 to 1.010 This adjustment must be made when the Scanner Drive Cable has been replaced. Adjustment Procedure 1.
  • Page 117 12. Call the Adjust mode to the screen. 13. Touch [IR]. 14. Touch [Zoom (FD)]. 15. Press the Clear key to clear the current setting value. Use to clear the setting value. Use to enter the setting value. 4002D519AA 16. Use the 10-key pad to change the setting value.
  • Page 118 (13) Scale (CD) Requirement Adjust so that the leading edge of the image of the scale on the copy sample meets the requirements. Adjust Mode Setting Range Scale (CD) -10.0 to +10.0 This adjustment must be made when the CCD Unit or Original Glass has been replaced. Adjustment Procedure 1.
  • Page 119 10. Call the Adjust mode to the screen. 11. Touch [IR]. 12. Touch [Scale (CD)]. 13. Press the Clear key to clear the current Use to clear the setting value. setting value. Use to enter the setting value. Use to change the + or - sign.
  • Page 120 (14) Scale (FD) Requirement Adjust so that the leading edge of the image of the scale on the copy sample meets the requirements. Adjust Mode Setting Range Scale (FD) -7.0 to +7.0 This adjustment must be made when the Scanner has been removed the Scanner Drive Cable or Original Glass has been replaced.
  • Page 121 10. Call the Adjust mode to the screen. 11. Touch [IR]. 12. Touch [Scale (FD)]. 13. Press the Clear key to clear the current Use to clear the setting value. setting value. Use to enter the setting value. Use to change the + or - sign.

  • Page 122: Other Adjustments

    3-8. OTHER ADJUSTMENTS Adjustment of the Reference Position of Each Drawer Requirement Width A on the test pattern output should fall within the following range. lead edge Specification 5 ± 0.5 mm 1155D154AB The adjustment should be made after Registration (CD/FD). Adjustment Procedure 1.
  • Page 123 7. Slide out the drawer used as the paper source for the test pattern and then loosen the seven screws shown on the left. 4002D250AA 8. Watching the scale on the adjustment plate in the drawer, move the Edge Guide. 4002D251AA Setting Instructions If width A on the test pattern is greater than the specifications, move the Edge Guide to the...
  • Page 124 Adjustment of the Reference Position of the Multi Bypass Tray Requirement Width A on the test pattern output should fall within the following range. lead edge Specification 5 ± 0.5 mm 1155D154AB The adjustment should be made after Registration (CD/FD). Adjustment Procedure 1.
  • Page 125 Adjustment of the Upper Right Door (Multi Bypass Unit) If the Right Door has been removed and reinstalled, the position of the actuator of Upper Right Door Set Sensor may deviate from the correct position. Hence, the necessity of the following adjustment.
  • Page 126 Adjustment of the Position of the Scanner and 2nd/3rd Mirrors Carriage Requirement With the Scanner fixed to the Scanner Drive Cables, there should be no gap between the Scanner/Mirrors Carriage Positioning Jig and the Scanner and also between the Scanner/ Mirrors Carriage Positioning Jig and the 2nd/3rd Mirror Carriage.
  • Page 127 5. Press the Scanner and the 2nd/3rd Mirrors Car- riage Assy tightly up against the Scanner Position- ing Jigs. 6. Check that there is no clearance between the Scanner and the Scanner Positioning Jig, and between the 2nd/3rd Mirrors Carriage Assy and the Scanner Positioning Jig.
  • Page 128 Adjustment of the Gap Between the Doctor Blade and Sleeve Roller (D.B. Adjustment) Requirement The gap between the Doctor Blade and Sleeve Roller should be 0.6 + 0.03 - 0.05 mm. Adjustment Procedure 1. Slide out the Developer Unit and remove the PC Drum Charge Corona and PC Drum.
  • Page 129 MISCELLANEOUS 4-1. INSTALLATION OF THE KEY COUNTER SOCKET (OPTION) 1. Remove the Right Cover. 2. Remove the Counter Cover. 4002D227AA 3. Swing down the Front Door and slide out the Developer Unit. 4. Remove three screws and the cover. NOTE Do not remove the belt mounting screw on the cover.
  • Page 130 4-2. MOUNTING THE ORIGINAL SIZE DETECTING SENSORS (OPTION) NOTE When an Original Size Detecting Sensor has been added, turn “ON” “Original Size Detect- ing Option” of “System Input” under the Tech. Rep. mode and make the “Orig. Size Adjust- ment.” D-80 1.

  • Page 131: Flash Memory

    4-3. FLASH MEMORY Software has conventionally been upgraded by replacing ROM on each board. This copier employs flash memory for the system control IC mounted on the Master Board and Image Processing Board. Its contents are reprogrammed easily by performing the following steps using the IC card (memory card), into which data has been previously downloaded.
  • Page 132 10. Turn OFF the Power Switch. 11. Plug the power cord into the power outlet. 12. Turn ON the Power Switch. 13. Call the Tech. Rep. Mode to the screen. 14. Touch [ROM Version]. 15. Check to see if the printer version shown on the screen matches the version marked on the flash memory.
  • Page 133 Check Items • “Downloading Completed.” is shown. • The number shown to the left of “Language” matches that entered from the 10-Key Pad when the Power Switch is turned ON. • The Check Sum value matches the value given on the memory card.
  • Page 134 Rewriting the ECC Board Data (option) 1. Unplug the power cord from the power outlet with the Power Switch OFF. 2. Remove the Rear Cover. 3. Insert the memory card into the ECC Board. 4002D538AB 4. Plug the power cord into the power outlet. 5.
  • Page 135 Rewriting the Master Board, Image Processing Board, and ECC Board (Option) Simultaneously NOTE Steps 4 and 9 are to be performed only when the ECC Board (option) is mounted. 1. With the Power Switch in the OFF position, unplug the power cord from the power out- let.
  • Page 136 4-4. REMOUNTING EPROM NOTE If the PW Board has replaced, be sure to remount EPROM from the old to new PW Board. If the PW Board has been replaced and EPROM has not been remounted, be sure to replace the PC Drum with a new one. EPROM contains no data in this case, so make entries again of numeric values given on the Adjust Label.
  • Page 137 Remounting EPROM on the Image Processing Board 1. Remove the Image Processing Board. 2. Remove EPROM (IC400) from the new Image Processing Board. 3. Remove EPROM (IC400) from old Image Processing Board and remount it onto the new Image Processing Board. 4002D254AB NOTE Note the alignment notch (A) on EPROM (IC400) when...
  • Page 138 SWITCHES ON PWBs, TECH. REP. SETTINGS...

  • Page 140: Table Of Contents

    CONTENTS 1. CONTROL PANEL KEYS AND TOUCH PANEL ..........S-1 1-1. Control Panel Keys .................. S-1 1-2. Explanation of the Touch Panel ............... S-3 (1) Basis Screen ................... S-3 (2) Warning Screens ................S-4 2. FUNCTION OF SWITCHES AND OTHER PARTS ON PWBs ......S-5 2-1.

  • Page 142: Control Panel Keys And Touch Panel

    CONTROL PANEL KEYS AND TOUCH PANEL 1-1. Control Panel Keys 1 2 3 4 4002O279EA...
  • Page 143 1. HDD Lamp 11. Original Key • Lights up to indicate that the Hard Disk • Press to select the Mixed Orig. Detec- Drive Kit (option) is being accessed. tion and other document-related func- 2. Access Key tions setting screen. •...

  • Page 144: Explanation Of The Touch Panel

    1-2. Explanation of the Touch Panel Basis Screen The Basic screen is the initial screen that appears when the copier is turned ON. 4003P137CA 1. Supplementary Function Keys • The auxiliary, Density, Orig. Copy, and Basics keys are displayed. 2. Message Display •...

  • Page 145: Warning Screens

    Warning Screens The Warning screen may be a malfunction display, error display, warning display, or a cau- tion display. <Malfunction Display> Given when a malfunction occurs. E.g.: Malfunctions that can be identified with a specific code. 4003P200CA 4003P201CA <Error Display> <Warning Display>...

  • Page 146: Function Of Switches And Other Parts On Pwbs

    FUNCTION OF SWITCHES AND OTHER PARTS ON PWBs 2-1. PWB Location PWB-S 4002S001AB 2-2. PWB-S (Tech. Rep. Setting Switches Board) 4002S002AB Symbol Name Description Trouble Reset Switch Resets the malfunction display. Tech. Rep. Switch Display the Tech. Rep. mode screen. Initialize Switch Resets a misfeed, malfunction, and erratic display.

  • Page 147: Clearing Procedures

    Clearing Procedures <Initialize> 1. Turn OFF the Power Switch. 2. With the circuit across pins of PJ2 closed, turn ON the Power Switch. 3. Open the circuit in about 5 seconds. 4. Check that the message “Initialize Completed” is displayed on the Touch Panel and then touch the “OK”...

  • Page 148: Utility Mode

    UTILITY MODE • Utility Mode is used to make various settings according to the user’s need. 3-1. Utility Mode selection Screen • Press the Utility key on the control panel. 4003P605CA 3-2. Utility Mode Function Tree Job Memory Input Job/Image Mem. Input Image Memory Input Meter Count User’s Choice 1/6...

  • Page 149: Settings In The Utility Mode

    3-3. Settings in the Utility Mode Touch Panel Setting Display Job/Image Permits programming of various functions, including copying jobs. Men. Input Meter Count Displays the counts of various counters. User’s Choice User’s Choice is used to make various settings according to the user’s need.
  • Page 150 2. User’s Choice Function Tree Original Copy Default Language selected User’s Choice 1/6 Mixed Original Detect Memory Recall Auto Paper/Auto Size Tray Priority 2in1, 4in1, Booklet, copy Zoom Density Priority User’s Choice 2/6 Default Level Output Priority Intelligent Sorting Criss Cross Mode “Small”...
  • Page 151 3. Settings in the User’s Choice Mode Touch Panel Setting (The default is Highlighted Display Original Copy Select the priority type of Original Copy setting selected automati- Default cally when the Power Switch is turned ON or Panel Reset key pressed.
  • Page 152 Touch Panel Setting (The default is Highlighted Display Density Priority Specify the priority exposure mode that is selected automatically when the Power Switch is turned ON or the Panel Reset key pressed. <Density> Manual Auto Exposure <Original Image Type> Text/Photo Photo Text Default Level...
  • Page 153 Touch Panel Setting (The default is Highlighted Display “Smaller” Originals Select whether to enable or disable a copy cycle when it is initiated with an original of a small size that is not detectable by the system placed on the Original Glass. ✽...
  • Page 154 Touch Panel Setting (The default is Highlighted Display Universal Tray Set the paper size for the Universal Tray. Size Input Auto Detect Special Paper Define the type of paper used for each paper source, or designate a particular paper source for special paper. Cover/Insert Normal Recycled...
  • Page 155 Touch Panel Setting (The default is Highlighted Display Auto Shut-Off Select the time it takes the Auto Shut Off function, which shuts down Mode the copier when the set period of time elapses after a copy cycle has been completed or the last key operated, to be activated. ✽...

  • Page 156: Administrator Mode

    Administrator Mode • The entry of the “Administrator #” set using the Tech. Rep. mode permits the settings of the following functions. 1. Administrator Mode Function Setting Procedure <Procedure> 1. Press the Utility key. 2. Touch the “Administrator Mode” key. 3.
  • Page 157 Touch Panel Setting (The default is Highlighted Display 100 Accounts The copy track data of the selected page is displayed. “No.”: Enter the set account number from the 10-Key Pad. “Total Count”: Displays the count of the Total Counter. “Size Count”: Displays the count of the Size Counter. “Copy Limit”: Enter the maximum number of copies that can be made from the 10-Key Pad.

  • Page 158: Tech. Rep. Mode

    TECH. REP. MODE • This mode is used by the Tech. Rep. to check, set, adjust, and/or program various ser- vice functions. 4-1. Tech. Rep. Mode Menu Screen 4003P602CA 4-2. Tech. Rep. Mode Function Setting Procedure <Procedure> 1. Press the Utility key. 2.

  • Page 159: Tech. Rep. Mode Menu Function Tree

    4-3. Tech. Rep. Mode Menu Function Tree F1: Paper Passage F2: HV Output Printer F5: AIDC Sensor F8: ATDC Sensor F12: Test Pattern Function Opt. Mem. Check Memory Check Comp./Expansion ¡ ¡ Image I.R. Mem. Prn. Memory Hard Disk Format Hard Disk Check ECC Check Date/Time Check...
  • Page 160 I/O Check Focus Check Zoom (CD) Function Zoom (FD)/Scale (IR) Scale (CD) Scanning Check Orig. Size Adjust Position/Zoom (FD) Position (CD) Function S-ADF Mode (CD) (EDH) S-ADF Mode (FD) Skew Check I/O Check Tech. Rep. Mode I.R. & EDH Check (IR) I/O Check (EDH)
  • Page 161 Tech. Rep. Mode Punch Loop Adjust Finisher Sensors I/O Check Port Signals S-20...

  • Page 162: Setting In The Tech. Rep. Mode

    4-4. Setting in the Tech. Rep. Mode Function • This function allows the Tech. Rep. to make the various function tests and adjustments. <Functions> Printer: Used for making the various function tests and adjustments for the printer. Image Memory: Used for making the various function tests and adjustments for image memory.
  • Page 163 Touch Panel Operation Display Memory Check Writes data in the image memory and reads it out to check for exact correspondence. The Touch Panel shows the percentage of processing completed of each diagnostic sequence and the number of diagnostic sequences carried out.
  • Page 164 Touch Panel Operation Display Hard Disk Format Formats the Hard Disk. The Touch Panel shows the percentage of processing completed. If formatting has been normally completed, the panel gives the mes- sage of “OK”; if it has been abnormally terminated, the panel gives the message of “NG”...

  • Page 165: Tech. Rep. Choice

    Tech. Rep. Choice • This function allows the Tech. Rep. to make various settings and adjustments. <Functions> System Set: Choice functions relating to the printer. Printer: Choice functions relating to image memory. Controller Set: Choice functions relating to the Printer Controller. Touch Panel Setting (The default is Highlighted...
  • Page 166 Touch Panel Setting (The default is Highlighted Display Toner Empty Stop Select whether or not to inhibit copying when a toner-empty condition is detected. Disable Enable T/C Abnormal Select whether to enable or disable copying when an abnormal T/C is detected.

  • Page 167: System Input

    Touch Panel Setting (The default is Highlighted Display Peripheral Mode Select the type of external I/F operation. Mode 1 External I/F operation mode 1 External I/F operation mode 2 Mode 2 Mode 3 External I/F operation mode 3 ✽ After the setting has been made, touch “END” and turn OFF and ON the Power Switch.

  • Page 168: Counter

    Counter • Shows the number of copies made on each paper size or type. <Clearing a Count> 1. Open the counter menu screen. 2. Select the counter to be cleared. 3. Press the Clear key. 4. Touch “END”. Press the Interrupt key to undo the clearing operation, restoring the original count. <Clearing All Counts of a Counter Type at Once>...
  • Page 169 Touch Panel Setting Display Counts the number of misfeeds that have occurred at different loca- tions in the copier. Display Description MCBJ System Total Counter divided by the sum of all misfeed- counters (including misfeeds in the Finisher) MCBJ Machine Total Counter divided by the sum of machine mis- Only feed counter (excluding misfeeds in the Finisher)
  • Page 170 Touch Panel Setting Display Display Description Fold No. of misfeeds that occurred at the Folding Unit Staple No. of misfeeds that occurred at the Stapling Unit Finisher No. of misfeeds that occurred in the Finisher, other than above Needle No. of staple misfeeds that occurred. Duplex Entrance No.
  • Page 171 Touch Panel Setting Display Display Description Staple 1 No. of stapling sequences performed Staple 2 No. of stapling sequences performed (FN-105) Punch No. of holes made (FN-105) Sort/Group No. of copies fed out in the Sort/Group mode Trans./Sepa. pass No. of times a sheet of paper is fed through Ozone Filter No.
  • Page 172 Touch Panel Setting Display Trouble Malfunction Malfunction Description Description Code Code C004E/F Cooling Fan C0210 Transfer Corona C0042 Fusing Unit Fan C04X0 Exposure Lamp C0070/2 Toner Hopper Motor C05X0 Fusing Unit C0090 Dev. Unit Drive Motor C0602 Scanner Drive Malfunction Malfunction Description Description...

  • Page 173: I/O Check

    Touch Panel Setting Display Trouble Malfunction Malfunction Description Description Code Code C1430 H. sysnc Trouble C1461/2 Serial GA Trouble C143E EDH Trouble C1499 IR Cooling Fan C1440 Gain Adjust Trouble C14XX IR Sequence Trouble C1441 CCD Trouble C1802 SPC Error Malfunction Code Description C1803...

  • Page 174: Rom Version

    Touch Panel Setting Display Scanning Check Check the operations from image scanning to image processing. Normal: OK: Abnormal: NG See the following for details of “NG” display Display Action Optical ✽ Check the optical system, change PWB-IA or B. Analog Digital Change PWB-B.

  • Page 175: Rd Mode

    RD Mode • Make the initial settings of the copier for the Data Terminal. 1. RD Mode Menu Function Tree e-mail System Set Modem CT-ID DT-ID TEL. No. DT Setting (Setting Modem) Initial Mail Address Billing Center Transmission (Setting e-mail) (Setting Modem) Billing RAM Clear...
  • Page 176 2. Setting in the RD Mode Touch Panel Setting Display System Set Set the control system. e-mail Modem Billing Center Displays the various setting screens. DT Setting Displays the setting screens for CT-ID, DT-ID, and telephone number. The mail address is also displayed if “e-mail” is set for System Set. CT-ID Enter the ID number of the Center PC from the 10-Key Pad.

  • Page 177: Level History

    Touch Panel Setting Display Date/Time Set Set the date and time-of-day for Date Printing. Common DT Displays the screens for communications settings. Dial Mode Sets the type of telephone line of the user. Tone Pulse Auto Receive Sets the auto reception function. Level History •...

  • Page 178: Admin. Mode

    (10) Admin. Mode • Makes the various settings. Touch Panel Setting Display Copy Track See User’s Choice. Copy Track Data See User’s Choice. Max. Copy Sets See User’s Choice. Administrator # Set an ID number for opening the “Administrator Mode” screen of Util- Input ity Mode from the 10-Key Pad.

  • Page 179: Security Mode

    SECURITY MODE • Allows the Tech. Rep. to set the various counters. 5-1. Security Mode Menu Screen 4003P603CA 5-2. Security Mode Setting Procedure <Procedure> 1. Show the Tech. Rep. mode menu screen. 2. Press the following keys in this order: Stop ¡...

  • Page 180: Settings In The Security Mode

    5-3. Settings in the Security Mode Touch Panel Setting (The default is Highlighted Display Key Counter Set to “ON” if a Key Counter is plugged in. NOTE: • If “OFF” is set, copies can be made without having to plugging the Key Counter into the socket.
  • Page 181 Touch Panel Setting (The default is Highlighted Display Vendor Mode Set the initial screen according to the type of vendor mounted on the copier. Coin Card Admin. Unit Select the model of the Data Controller mounted on the copier. D102 D103 S-40...

  • Page 182: Adjust Mode

    ADJUST MODE • Used at the factory for making adjustments. NOTE: • Use only when the RAM Board has been replaced. If any of the adjustment values has been changed, be sure to enter the value in the label affixed to the copier. 6-1.

  • Page 183: Adjust Mode Function Tree

    6-3. Adjust Mode Function Tree Registration (CD) Registration (CD) PHC beam Adjust Image Density ATDC Control Printer Separator Charge LD Bias Leading Edge Erase Trailing Edge Erase Loop Adjustment Vg adjust Zoom (CD) Zoom (FD)/Manual Adjust Mode Image Reader Scale (FD) Scale (CD) Zoom (FD)/EDH Feed (2)

  • Page 184: Settings In The Adjust Mode

    6-4. Settings in the Adjust Mode <Function> Printer: Adjust functions relating to the printer. I.R.: Adjust functions relating to the I.R. EDH: Adjust functions relating to the EDH. Touch Panel Setting (The default is Highlighted Display Registration (CD) Adjust registration in the CD direction on the engine side. Setting -8.2 ........
  • Page 185 Touch Panel Setting (The default is Highlighted Display Leading Edge Select whether to enable or disable the leading edge erase. Erase 0 to 5 ( 3 mm Trailing Edge Select whether to enable or disable the trailing edge erase. Erase 0 to 5 ( 3 mm Loop Adjustment...
  • Page 186 Touch Panel Setting (The default is Highlighted Display Feed (FD) Set the correction value for the original scanning position in the FD direction when the EDH is used. -4.0 to +4.0 ( 0.0 mm Feed (CD) Set the correction value for the original scanning position in the CD direction when the EDH is used.

  • Page 188: Troubleshooting

    TROUBLESHOOTING 13430...
  • Page 190 CONTENTS 1. INTRODUCTION ..................... T-1 1-1. Reading the Text ..................T-1 2. I/O CHECK ...................... T-1 2-1. Controlled Parts Check Procedure ............T-1 2-2. I/O Check List ..................T-2 3. PAPER TRANSPORT FAILURE ..............T-8 3-1. Paper Misfeed ..................T-8 3-2.
  • Page 191 C0924: 1st Drawer Lift-Up Motor’s failure to turn ......T-53 (13) C0900: 3rd Drawer Paper Lift-Up Sensor malfunction C0904: 3rd Drawer Paper Lift-Up Motor’s failure to turn C0950: 4th Drawer Paper Lift-Up Sensor malfunction C0954: 4th Drawer Paper Lift-Up Motor’s failure to turn ....T-55 (14) C0990: Main Tray lifting motion failure C0994: Main Tray Elevator Motor’s failure to turn ......

  • Page 192: Introduction

    INTRODUCTION 1-1. Reading the Text 1. The paper transport failure troubleshooting procedures are given according to the symptom. First identify the location where the paper is present and start the procedure for that particular location. For malfunction troubleshooting, start with step 1 and onward.

  • Page 193: I/O Check List

    2-2. I/O Check List <I/O Check Screens> • The following screen is only typical and the port data shown does not necessarily repre- sent the actual one. [IR] 4002T003CA <I/O Check List> [IR] Operation Characteris- Input Port CN/PJ tics/Panel Display Symbol Panel Display Parts/Signal Name...
  • Page 194 <I/O Check Screens> • The following screens are only typical and the port data shown does not necessarily rep- resent the actual one. [Printer] Previous Screen Next Screen 4002T005CB 4002T004CA Next Previous Screen Screen 4002T009CA 4002T006CA Previous Next Next Previous Screen Screen Screen...
  • Page 195 <I/O Check List> [Printer] Operation Characteris- Input Port CN/PJ tics/Panel Display Symbol Panel Display Parts/Signal Name Board PC10 In position Out of Master PJ3A-9A Drawer Set Sen- position Board Drawer (PWB-A) Take-up 1 Paper Paper not PJ3A-6A Drawer Paper present present Take-Up Sensor PC14...
  • Page 196 Operation Characteris- Input Port CN/PJ tics/Panel Display Symbol Panel Display Parts/Signal Name Board PC124 Lift-up Blocked Unblocked Control PJ5A-5A Drawer Lift-Up Pulse Board Drawer Motor Pulse Sensor (PWB-A) (PF- 208) PC135 Cabinet Toner Toner Collecting Out of In position PJ13A-2 Box Set Bottle Set Sensor position...
  • Page 197 Operation Characteris- Input Port CN/PJ tics/Panel Display Symbol Panel Display Parts/Signal Name Board PC113 LCC2 Leading Paper Leading Paper Paper not Control PJ9A-5 (PF- Edge Edge Sensor 3 present present Board 115) (PWB-A) PC142 Elev. Mtr Elevator Motor Blocked Unblocked PJ7A-5A Pulse Pulse Sensor...
  • Page 198 Operation Characteris- Input Port CN/PJ tics/Panel Display Symbol Panel Display Parts/Signal Name Board PC23 Univer- Paper Size Detect- Blocked Unblocked Master PJ12A-3A sal Tray ing Sensor CDA1 Board (PWB-A) PC24 Paper Size Detect- Blocked Unblocked PJ12A-6A ing Sensor CDB1 Paper Timing Synchronizing Paper...

  • Page 199: Paper Transport Failure

    PAPER TRANSPORT FAILURE 3-1. Paper Misfeed When a paper misfeed occurs, the Touch Panel shows the corresponding message, mis- feed location, and paper location. Blinking Misfeed location Paper location 4002T011CA Display Misfeed/Paper Location Ref. Page EDH take-up EDH reverse, EDH exit See the relevant EDH transport option service...

  • Page 200: Misfeed Detection Sensor Layout

    3-2. Misfeed Detection Sensor Layout • When PF-115 is Mounted Synchronizing Roller Paper Exit Sensor Sensor (PC1) (PC9) Transport Roller Sensor (PC2) Paper Leading Edge Sensor SW1 (PC5) Turnover Feed Entry Drawer Paper Take-Up Sensor (PC7) Sensor (PC3) Turnover Feed Jam Paper Leading Edge Sensor (PC8) Sensor SW2 (PC6)

  • Page 201: Types Of Misfeed Detection And Detection Timings

    3-3. Types of Misfeed Detection and Detection Timings • The following lists the types of misfeed detection and detection timings for different mis- feed locations. • The symbol “L” (for the leading edge) and “T” (for the trailing edge) given in ( ) indicate the particular edge of the paper detected by the sensor.
  • Page 202 <Duplex Paper Take-Up Misfeed> Type Detection Start Detection Leading edge detection by Paper Turnover Feed Entry Sen- Paper Exit Sensor (L) Exit Sensor during turnover exit sor (T) Trailing edge detection by Paper Paper Exit Sensor (L) Paper Exit Sensor (T) Exit Sensor during turnover exit Leading edge detection by Turn- Turnover Feed Entry Sen-...
  • Page 203 3-4. Misfeed Troubleshooting Procedures Copier Paper Take-Up Misfeed Relevant Electrical Parts Drawer Paper Take-Up Sensor (PC3) Drawer Paper Take-Up Motor (M4) Drawer Paper Take-Up Sensor (PC4) Drawer Paper Take-Up Motor (M5) Paper Leading Edge Sensor SW1 (PC5) Upper Vertical Transport/Manual Feed Paper Leading Edge Sensor SW2 (PC6) Motor (M6) Lower Vertical Transport Motor (M7)
  • Page 204 Copier Paper Take-Up Misfeed Troubleshooting Procedures • Paper is not taken up at all. Step Check Result Action Paper meets product specifications. Change paper. Paper is curled, wavy, or damp. YES Change paper. Instruct user in correct paper storage. Edge Guide and Trailing Edge Stop are at cor- Set.
  • Page 205 • Paper is stopped in the Vertical Transport Section. Step Check Result Action Vertical Transport Rollers are dirty with paper Change paper. dust, deformed, or worn. Paper take-up guide plate or vertical transport YES Clean or change. guide plate is dirty or deformed. YES Change Master Board.

  • Page 206: Multi Bypass Misfeed

    Multi Bypass Misfeed Relevant Electrical Parts Transport Roller Sensor (PC2) Manual Feed Paper Pick-Up Solenoid (SL5) Manual Feed Paper Empty Sensor (PC18) Master Board (PWB-A) Upper Vertical Transport/Manual Feed Motor (M6) PWB-A CN29 PJ18 PJ2A-1(DC5V) PJ2A-2(GND) PC18 PJ2A-3(PC18 ON) CN205 PJ2A-4(DC24V) PJ2A-5(SL5 ON) PJ2A-6(SL5 OFF)
  • Page 207 Multi Bypass Misfeed Troubleshooting Procedures • Paper is not detected. Step Check Result Action I/O check for Manual Feed Paper Empty Sen- YES Change Master Board. sor operation: the voltage across PJ2A-3 on Correct actuator. Master Board and GND is DC0V when the sen- Change sensor.

  • Page 208: Transport/Separator Misfeed

    Transport/Separator Misfeed Relevant Electrical Parts Transport Roller Sensor (PC2) Suction Fan Motor (M17) Synchronizing Roller Sensor (PC1) Separator Finger Solenoid (SL4) Transport Roller Motor (M8) Master Board (PWB-A) Synchronizing Roller Motor (M9) PWB-A CN19 PJ4A-11A(DC5V) PJ4A-12A(GND) PJ4A-13A(PC2 ON) CN20 PJ4A-1B(DC5V) PJ4A-2B(GND) PJ4A-3B(PC1 ON) PJ108...
  • Page 209 Transport/Separator Misfeed Troubleshooting Procedures • Paper is stopped at the Synchronizing Rollers. Step Check Result Action Synchronizing Rollers are dirty with paper YES Clean or change. dust, deformed, or worn. The length of the loop formed before the Syn- Adjust loop length. chronizing Rollers is okay.
  • Page 210 • Paper is stopped at the Transport Rollers. Step Check Result Action Transport Rollers are dirty with paper dust, YES Clean or change. deformed, or worn. Transport Roller Motor turns when the Start Correct drive coupling. key is pressed. Change motor or Master Board.

  • Page 211: Fusing/Exit Misfeed

    Fusing/Exit Misfeed Relevant Electrical Parts Paper Exit Sensor (PC9) Exit/Duplex Switching Solenoid (SL3) Fusing Motor (M2) Master Board (PWB-A) PWB-A PJ109 PJ7A-2A(M2 ON) PJ7A-1A(M2 LOCK) CN30 PJ9A-1A(DC5V) PJ9A-2A(GND) PJ9A-3A(PC9 ON) CN203 CN22 PJ9A-1B(DC24V) PJ9A-2B(SL3 ON) 4002C04TAA Fusing/Exit Misfeed Troubleshooting Procedures •...

  • Page 212: Paper Take-Up Misfeed

    PF-208 Paper Take-Up Misfeed Relevant Electrical Parts Drawer Paper Take-Up Sensor (PC117) Drawer Paper Take-Up Motor (M122) Drawer Paper Take-Up Sensor (PC125) Drawer Paper Take-Up Motor (M123) Paper Leading Edge Sensor 3 (PC113) Vertical Transport Motor (M121) Paper Leading Edge Sensor 4 (PC118) Control Board (PWB-A): PF-208 Master Board (PWB-A) PWB-A(PF-208)
  • Page 213 PF-208 Paper Take-Up Misfeed Troubleshooting Procedures • Paper is not taken up at all. Step Check Result Action Paper meets product specifications. Change paper. Paper is curled, wavy, or damp. YES Change paper. Instruct user in correct paper storage. Edge Guide and Trailing Edge Stop are at cor- Set.
  • Page 214 • Paper is stopped at the Vertical Transport Rollers. Step Check Result Action Vertical Transport Rollers are dirty with paper YES Clean or change. dust, deformed, or worn. Paper take-up guide plate or vertical transport YES Clean, correct, or change. guide plate is dirty or deformed.

  • Page 215: Paper Take-Up Misfeed

    PF-115 Paper Take-Up Misfeed Relevant Electrical Parts Drawer Paper Take-Up Sensor (PC117) Drawer Paper Take-Up Motor (M122) Paper Leading Edge Sensor 3 (PC113) Vertical Transport Motor (M121) Paper Leading Edge Sensor 4 (PC118) Control Board (PWB-A): PF-115 Master Board (PWB-A) PWB-A(PF-115) PJ101 PJ3A-3(W)
  • Page 216 PF-115 Paper Take-Up Misfeed Troubleshooting Procedures • Paper is not taken up at all. Step Check Result Action Paper meets product specifications. Change paper. Paper is curled, wavy, or damp. YES Change paper. Instruct user in correct paper storage. Paper Lifting Plate is dirty or deformed. YES Clean or change.

  • Page 217: Duplex Paper Take-Up Misfeed

    Duplex Paper Take-Up Misfeed Relevant Electrical Parts Turnover Feed Entry Sensor (PC7) Turnover Motor (M10) Turnover Feed Jam Sensor (PC8) Vertical Transport Motor (M121) Turnover/Exit Sensor (PC27) Duplex Unit Turnover Motor (M130) Duplex Unit Turnover Entry Sensor (PC112) Horizontal Transport Motor (M131) Turnover Feed Jam Sensor (PC131) Turnover Roller Retraction Solenoid (SL1) Horizontal Transport Entry Sensor (PC132)
  • Page 218 Duplex Paper Take-Up Misfeed Troubleshooting Procedures • Paper is stopped at the turnover section. Step Check Result Action Rollers at the turnover section are dirty, YES Clean or change. deformed, or worn. Guide plate at the turnover section is dirty or YES Clean, correct, or change.
  • Page 219 • Paper is stopped at the horizontal transport section. Step Check Result Action Horizontal Transport Rollers are dirty with YES Clean or change. paper dust, deformed, or worn. Horizontal transport guide plate is dirty or YES Clean, correct, or change. deformed.

  • Page 220: Malfunctions

    MALFUNCTIONS The copier’s CPU is equipped with a self-diagnostics function that, on detecting a malfunc- tion, gives the corresponding malfunction code on the Touch Panel. Resetting a Malfunction • Press the Trouble Reset Switch on the Tech. Rep. Setting Switches Board to reset fusing- and Exposure Lamp-related malfunctions.
  • Page 221 Code Description Detection Timing C004C Ventilation Fan Motor’s • The Lock signal remains HIGH for a continuous failure to turn period of 1.5 sec. or more after the lapse of 10 sec. after the motor has started turning. • The Lock signal remains LOW for a continuous period of 1.5 sec.
  • Page 222 Code Description Detection Timing C0500 Warming-up failure The surface temperature of the Upper Fusing Roller does not reach a specified level even after the lapse of a predetermined period of time during warming-up as detailed below: • From room temperature to 90°C: Within 180 sec. •...
  • Page 223 Code Description Detection Timing C0910 2 Drawer Paper Lift-Up • The 2 Drawer Paper Lift-Up Sensor is not blocked Sensor malfunction (LOW) even after the lapse of 5 sec. after the 2 Drawer Paper Lift-Up Motor has started turning. • The 2 Drawer Paper Lift-Up Sensor is not acti- vated even when the 2 Drawer Paper Lift-Up...
  • Page 224 Code Description Detection Timing C0B00 C0B02 Transport mechanism malfunction C0B03 C0B04 C0B20 Stapling Unit drive sys- C0B21 tem malfunction C0B24 C0B30 C0B31 C0B34 Paper Aligning Mecha- nism malfunction C0B35 C0B36 C0B38 C0B48 Neat copy stack trans- port mechanism mal- function C0B49 See the relevant option service manual.
  • Page 225 Code Description Detection Timing C0BC0 C0BC1 Paper folding mechanism malfunction C0BC2 C0BC3 See the relevant option service manual. C0BF0 Control system malfunc- tion C0D50 Duplex Horizontal Trans- port Motor malfunction C0E00 Main Erase Lamp’s fail- • The Main Erase Lamp Malfunction signal remains ure to turn ON LOW for a continuous 1-sec.
  • Page 226 Code Description Detection Timing C1334 Duplex take-up print • A Duplex take-up print command is not received for command error the paper to be taken up from the Duplex after the paper has moved past the horizontal transport, but before it reaches the Transport Roller. •...

  • Page 227: Troubleshooting Procedures By Malfunction Code

    4-2. Troubleshooting Procedures by Malfunction Code C0000: Fusing Motor’s failure to turn C0010: PC Drum Drive Motor’s failure to turn Relevant Electrical Parts Fusing Motor (M2) Master Board (PWB-A) PC Drum Drive Motor (M21) PWB-A PJ121 PJ7A-5A(M21 FR) PJ7A-4A(M21 LOCK) PJ7A-3A(M21 START) PJ102 PJ7A-2A(M2 LOCK)

  • Page 228: C0040: Suction Fan Motor's Failure To Turn C004C: Ventilation Fan Motor's Failure To Turn

    C0040: Suction Fan Motor’s failure to turn C004C: Ventilation Fan Motor’s failure to turn Relevant Electrical Parts Suction Fan Motor (M17) Master Board (PWB-A) Ventilation Fan Motor (M18) CN22 PWB-A CN118 PJ9A-5B(M18 LD) PJ9A-6B(GND) PJ9A-7B(DC24V) CN117 DC24V PJ13A-1B(M17 LOCK) PJ13A-2B(M17 H/L) 4002C09TAA C0040 Step...

  • Page 229: C0042: Fusing Unit Cooling Fan Motor's Failure To Turn

    C0042: Fusing Unit Cooling Fan Motor’s failure to turn Relevant Electrical Parts Fusing Unit Cooling Fan Motor (M23) Power Supply Board (PWB-C) CN30 PWB-C CN123 PJ13C-1 (DC24V) PJ13C-2 (GND) PJ13C-3 (M23 LD) 4002C24TAA C0042 Step Check Result Action Fusing Unit Cooling Fan Motor rotation: the Change Power Supply voltage across PJ13C-1 on Power Supply Board.

  • Page 230: C0045: Ir Cooling Fan Motor Malfunction C0046: Ph Cooling Fan Motor 1 Malfunction C0047: Ph Cooling Fan Motor 2 Malfunction

    C0045: IR Cooling Fan Motor malfunction C0046: PH Cooling Fan Motor 1 malfunction C0047: PH Cooling Fan Motor 2 malfunction Relevant Electrical Parts PH Cooling Fan Motor 2 (M19) IR Cooling Fan Motor (M52) PH Cooling Fan Motor 1 (M22) SCP Board (PWB-IC) PWB-IC CN122...
  • Page 231 C0045 Step Check Result Action IR Cooling Fan Motor rotation: the voltage Change SCP Board. across PJ4IC-4 on SCP Board and GND is DC24V (during high-speed rotation) and DC12V (during low-speed rotation) after the malfunction has been reset. IR Cooling Fan Motor rotation: the voltage YES Change SCP Board.

  • Page 232: C0049: Paper Source Option Vertical Transport Cooling Fan Motor Malfunction

    C0049: Paper source option Vertical Transport Cooling Fan Motor malfunction Relevant Electrical Parts Vertical Transport Cooling Fan Motor (M132) Control Board (PWB-A) PWB-A CN18 (CABINET) PJ14A-1(DC24V) M132 PJ14A-2(GND) PJ14A-3(M132 LOCK) 4002C27TAA C0049 Step Check Result Action Vertical Transport Cooling Fan Motor rotation: Change Control Board.

  • Page 233: C004E: Power Supply Unit Cooling Fan Motor 1'S Failure To Turn C004F: Power Supply Unit Cooling Fan Motor 2'S Failure To Turn

    C004E: Power Supply Unit Cooling Fan Motor 1’s failure to turn C004F: Power Supply Unit Cooling Fan Motor 2’s failure to turn Relevant Electrical Parts Power Supply Unit Cooling Fan Motor 1 Master Board (PWB-A) (M16) Power Supply Board (PWB-C) Power Supply Unit Cooling Fan Motor 2 (M15) PWB-A...
  • Page 234 C004F Step Check Result Action Power Supply Unit Cooling Fan Motor 2 rota- Change Master Board. tion: the voltage across PJ6A-11 on Power Supply Board and GND is DC24V after the malfunction has been reset. Power Supply Unit Cooling Fan Motor 2 rota- YES Check motor for installa- tion: the voltage across PJ6A-13 on Power tion.

  • Page 235: C0072: Main Hopper Toner Replenishing Motor's Failure To Turn C0090: Developing Unit Drive Motor's Failure To Turn

    C0072: Main Hopper Toner Replenishing Motor’s failure to turn C0090: Developing Unit Drive Motor’s failure to turn Relevant Electrical Parts Toner Bottle Home Position Sensor (PC21) Sub Hopper Toner Replenishing Motor Developing Unit Drive Motor (M1) (M14) Main Hopper Toner Replenishing Motor Master Board (PWB-A) (M13) PWB-A...
  • Page 236 C0072 Step Check Result Action Toner Bottle turns when the Toner Bottle is Correct drive coupling. turned a half turn and the Front Door is closed. I/O check for Toner Bottle Home Position Sen- YES Change Master Board. sor operation: the voltage across PJ11A-5 on Check sensor for installa- Master Board and GND is DC5V (Toner Bottle tion.

  • Page 237: C0210: Image Transfer/Paper Separator Corona Charge Leak Detected

    C0210: Image Transfer/Paper Separator Corona charge leak detected Relevant Electrical Parts PC Drum Charge/Developing Bias HV Master Board (PWB-A) (HV1) PWB-A PJ2HV1 PJ12A-4B(SCD) PJ12A-5B(Sep BIAS) PJ12A-6B(Sep REM) PJ12A-7B(Tra REM) PJ12A-8B(Dev BIAS) PJ12A-9B(Dev REM) PJ12A-10B(GRID) PJ12A-11B(C.G.REM) PJ1HV1 DC24V 4002C12TAA C0210 Step Check Result Action...

  • Page 238: C0400: Exposure Lamp's Failure To Turn On C0420: Exposure Lamp Turning On At Abnormal Timing

    C0400: Exposure Lamp’s failure to turn ON C0420: Exposure Lamp turning ON at abnormal timing Relevant Electrical Parts Exposure Lamp (FL51) Image Processing Board (PWB-B) Inverter Board (UN51) Power Supply Board (PWB-C) Lamp Flat Cable (PWB-IF) SCP Board (PWB-IC) UN51 FL51 CN2UN51-1 PWB-B...

  • Page 239: C0510: Abnormally Low Fusing Temperature

    (10) C0500: Warming-up failure C0510: Abnormally low fusing temperature C0520: Abnormally high fusing temperature Relevant Electrical Parts Upper Fusing Roller Heater Lamp (H1) Upper Fusing Roller Thermostat (TS1) Lower Fusing Roller Heater Lamp (H2) DC Power Supply Main (PU1) Upper Fusing Roller Thermistor (TH1) Master Board (PWB-A) Lower Fusing Roller Thermistor (TH2) CN11...
  • Page 240 C0500, C0510 Step Check Result Action Upper Fusing Roller Heater Lamp turns ON YES Correct thermistor for when the Power Switch is turned ON. mounting position and/or clean. Lower Fusing Roller Heater Lamp turns ON Check step 7 and onward. when the malfunction is reset with the surface temperature of Lower Fusing Roller Heater Lamp is 140°C or less as indicated on “Level...
  • Page 241 C0520 Step Check Result Action Upper Fusing Roller Heater Lamp is ON even YES Change DC Power Supply after the copier has completed warming up. Or Main. Lower Fusing Roller Heater Lamp is ON when the surface temperature of Lower Fusing Roller Heater Lamp is 140°C or more as indicated on “Level History”...

  • Page 242: C0650: Shome Signal Error

    (11) C0602: Cable unwound C0650: SHOME signal error Relevant Electrical Parts Scanner Motor (M51) Image Processing Board (PWB-B) Scanner Reference Position Sensor (PC51) SCP Board (PWB-IC) PWB-B PJ51 PJ306B-10(GND) PJ306B-9(PC51 ON) PC51 PJ306B-11(DC5V) PWB-IC PJ151 PJ3IC-1 (U) PJ3IC-2 (V) PJ3IC-3 (W) 4002C14TAB T-51...
  • Page 243 C0602 Step Check Result Action Scanner moves as moved manually. Correct drive coupling. Rewind cables. Connector on SCP Board is connected prop- Connect. erly: PJ3IC on PWB-IC. Scanner Motor turns when the Start key is Correct drive coupling. pressed. Change motor or SCP Board.

  • Page 244: C0914: 2Nd Drawer Lift-Up Motor's Failure To Turn

    (12) C0910: 2 Drawer Paper Lift-Up Sensor malfunction C0914: 2 Drawer Lift-Up Motor’s failure to turn C0920: 1 Drawer Paper Lift-Up Sensor malfunction C0924: 1 Drawer Lift-Up Motor’s failure to turn Relevant Electrical Parts Drawer Set Sensor (PC11) Drawer Set Sensor (PC10) Drawer Lift-Up Motor Pulse Sensor Drawer Lift-Up Motor Pulse Sensor (PC13)
  • Page 245 C0910, C0914 Step Check Result Action Correct drive coupling. Lift-Up Motor turns when the 2 Drawer is slid out and then back in. YES Change motor. Drawer Lift-Up Motor rotation: the voltage across PJ3A-13B on Master Board and GND is Change Master Board.

  • Page 246: C0904: 3Rd Drawer Paper Lift-Up Motor's Failure To Turn

    (13) C0900: 3 Drawer Paper Lift-Up Sensor malfunction C0904: 3 Drawer Paper Lift-Up Motor’s failure to turn C0950: 4 Drawer Paper Lift-Up Sensor malfunction C0954: 4 Drawer Paper Lift-Up Motor’s failure to turn Relevant Electrical Parts Drawer Paper Lift-Up Sensor (PC115) Drawer Paper Lift-Up Sensor (PC119) Drawer Set Sensor (PC121) Drawer Set Sensor (PC122)
  • Page 247 C0900, C0904 Step Check Result Action Correct drive coupling. Lift-Up Motor turns when the 3 Drawer is slid out and then back in. YES Change motor. Drawer Paper Lift-Up Motor rotation: the voltage across PJ5A-3B on Control Board and Change Control Board. GND is DC0V (motor deenergized) and DC24V (motor energized) after the 3 Drawer has...

  • Page 248: C0994: Main Tray Elevator Motor's Failure To Turn

    (14) C0990: Main Tray lifting motion failure C0994: Main Tray Elevator Motor’s failure to turn Relevant Electrical Parts Elevator Motor Pulse Sensor (PC142) Drawer Paper Lift-Up Sensor (PC115) Elevator Motor (M126) Drawer Paper Empty Sensor (PC116) Cabinet Transport Board (PWB-H) Lower Position Overrun Detecting Sensor Control Board (PWB-A): PF-115 (PC137)
  • Page 249 C0990 Step Check Result Action YES Change Control Board. I/O check for 3 Drawer Paper Lift-Up Sensor operation: the voltage across PJ8A-2 on Con- Change sensor. trol Board and GND is DC5V (sensor unblocked) and DC0V (sensor blocked). I/O check for Lower Position Overrun Detecting Change Control Board.

  • Page 250: C0997: Shift Gate Malfunction

    (15) C0996: Main Tray lock release failure C0997: Shift Gate malfunction Relevant Electrical Parts Shift Gate Position Sensor (PC136) Drawer Lock Solenoid (SL112) Drawer Set Sensor (PC144) Cabinet Transport Board (PWB-H) Shift Gate Motor (M128) Control Board (PWB-A): PF-115 DC5V PWB-H PJ35 PJ1H-11B...
  • Page 251 C0996 Step Check Result Action YES Change solenoid. Drawer Lock Solenoid operation: the volt- age across PJ10A-6 on Control Board and Change Control Board. GND is DC24V (solenoid deenergized) and DC0V (solenoid energized) when the Paper Descent key is pressed and the Main Tray com- pletes its descent motion.

  • Page 252: C0998: Shifter Return Failure C099C: Shift Motor's Failure To Turn

    (16) C0998: Shifter return failure C099C: Shift Motor’s failure to turn Relevant Electrical Parts Shifter Home Position Sensor (PC140) Shift Motor (M127) Shifter Return Position Sensor (PC141) Cabinet Transport Board (PWB-H) Shift Motor Pulse Sensor (PC143) Control Board (PWB-A): PF-115 DC5V PWB-H PJ27...
  • Page 253 C0998 Step Check Result Action I/O check for Shifter Return Position Sensor YES Change Control Board. operation: the voltage across PJ7A-7A on Con- Change sensor or Cabinet trol Board and GND is DC5V (sensor Transport Board. unblocked) and DC0V (sensor blocked). Change flat cable.
  • Page 254 (17) C0D50: Duplex Horizontal Transport Motor malfunction Relevant Electrical Parts Horizontal Transport Motor (M131) Control Board (PWB-A) PWB-A (Cabinet) PJ25 PJ12A-13(GND) M131 PJ12A-12(DC5V) PJ12A-10(GND) PJ12A-9(DC24V) PJ12A-8(M131 CLK) PJ12A-7(M131 LOCK) PJ12A-5(M131 REM) PJ12A-1(GND) 4002C25TAA C0D50 Step Check Result Action Horizontal Transport Motor turns when the Correct drive coupling.

  • Page 255: C0E00: Main Erase Lamp's Failure To Turn On

    (18) C0E00: Main Erase Lamp’s failure to turn ON Relevant Electrical Parts Main Erase Lamp (LA2) Master Board (PWB-A) CN30 PWB-A PJ74 PJ9A-7A (LA2 REM) DC24V 4002C20TAA C0E00 Step Check Result Action Main Erase Lamp ON: the voltage across YES Change Master Board. PJ9A-7A on Master Board and GND is DC24V (lamp OFF) and DC0V (lamp ON) when the Start key is pressed.

  • Page 256: C0F24: Aidc Sensor Contamination Correction Failure

    (19) C0F24: AIDC Sensor contamination correction failure Relevant Electrical Parts AIDC Sensor Board (PWB-G) Master Board (PWB-A) CN10 PWB-A CN41 PJ7A-5B(AIDC LED) PWB-G PJ7A-6B(GND) AIDC PJ7A-7B(AIDC OUT) 4002C21TAA C0F24 Step Check Result Action PJ7A, CN10, and CN41 are plugged securely Plug them in securely.

  • Page 257: C0F32: Atdc Sensor Malfunction C0F33: Abnormally Low T/C As Detected By Atdc Sensor

    (20) C0F32: ATDC Sensor malfunction C0F33: Abnormally low T/C as detected by ATDC Sensor Relevant Electrical Parts ATDC Sensor (UN2) Master Board (PWB-A) CN10 PWB-A PJ7A-8B(CONTROL) PJ7A-9B(DC24V) ATDC PJ7A-10B(OUT) PJ7A-11B(GND) 4002C22TAA C0F32, C0F33 Step Check Result Action PJ7A on Master Board, CN10, and PJ7 on the Plug them in securely.

  • Page 258: C10Xx To C18Xx

    (21) C10XX to C18XX • These malfunctions are concerned with faulty symptoms relating to software, hardware, and communications. Code Action C10XX 1. Reset the malfunction and turn OFF and ON the Power Switch. C11XX 2. If the same malfunction persists, check cables and connectors for proper C12XX connection.
  • Page 259 Code Action C1401 1. Reset the malfunction. C1402 2. If the same malfunction persists, change the Image Processing Board. C1410 C1426 C1428 C1429 C142A C1430 C143E See the option service manual. C1440 1. Reset the malfunction. 2. Check that the Original Glass is properly installed. 3.

  • Page 260: Copier Does Not Turn On

    (22) Copier does not turn ON. Relevant Electrical Parts Power Switch (S1) DC Power Supply Main (PU1) Front Door Interlock Switch (S21) DC Power Supply Sub (PU2) Upper Left Door Interlock Switch (S22) Power Supply Board (PWB-C) Main Relay (RY1) Master Board (PWB-A) •...
  • Page 261 Step Check Result Action Power Supply Board operation: the voltage Change Power Supply across PJ5C-3 on Power Supply Board and Board. GND is AC10V when Power Switch is turned YES Check Main Relay. T-70...

  • Page 262: Image Failure

    IMAGE FAILURE 5-1. Image Failure Troubleshooting • In this chapter, troubleshooting is divided into “initial checks” and “troubleshooting proce- dures classified by image failures.” • If any image failure has occurred, first make the initial checks, then proceed to the corre- sponding image failure troubleshooting procedure.

  • Page 263: Troubleshooting Procedures Classified By Image Failure

    5-3. Troubleshooting Procedures Classified by Image Failure • Image Failure Samples 1. Blank copy 2. Black copy 3. Low image density 4. Foggy background 5. Black streaks or bands 6. Black spots 7. Blank streaks or bands 8. Void areas 9.

  • Page 264: Blank Copy

    Blank copy Section Step Check Result Action Developing Unit is installed in Install correctly. position. There is drive to the Develop- Correct or change drive cou- ing Unit. pling. Image Transfer Corona wire is Install properly. installed properly. Engine Wiring between HV and Image YES Change HV.

  • Page 265: Low Image Density

    Low image density Section Step Check Result Action Image Transfer Corona is dirty. YES Clean or change. Wiring between HV and Image Connect. Transfer Corona is connected. Developing bias contact is YES Clean or change. dirty or deformed. Engine PH lens is dirty. YES Clean.

  • Page 266: Black Streaks Or Bands

    Black streaks or bands Section Step Check Result Action PC Drum is dirty. YES Clean or change. Cleaning Blade has correct Correct lateral movement lateral movement. mechanism. Cleaning Blade is curled YES Change. upward or deteriorated. Engine Comb Electrode and grid YES Clean or change.

  • Page 267: Blank Streaks Or Bands

    Blank streaks or bands Section Step Check Result Action PC Drum is scratchy and dirty. YES Clean or change. PC Drum Paper Separator YES Clean of change. Fingers are dirty or deformed. PC Drum is properly Clean or change PC Drum grounded.

  • Page 268: Smear On Back

    (10) Smear on back Section Step Check Result Action Suction Belts are dirty. YES Clean. Image Transfer Corona is dirty. YES Clean. Image Transfer Guide Plate is Clean. dirty. Engine Pre-Fusing Guide Plate is YES Clean. dirty. Fusing Rollers are dirty. YES Clean or change.

  • Page 269: Rough Image

    (13) Rough image Section Step Check Result Action Foreign matter and caked YES Remove foreign matter and toner inside Developing Unit caked toner. Change devel- and DB. oper. Image Transfer Corona wire is YES Clean or change. Engine dirty or deteriorated. Wiring between HV and Image YES Change HV.

  • Page 270: Resetting The Maintenance Code Display

    RESETTING THE MAINTENANCE CODE DISPLAY 6-1. Details of Maintenance Codes Code Description The count of “Waste Toner” of the Consumables counter reaches a predeter- mined value before the setting value. The count of “Web” of the Consumables counter reaches the setting value. 6-2.
  • Page 271 Copyright 2000 MINOLTA Co., Ltd. Printed in Japan Use of this manual should be strictly supervised to avoid disclosure of confidential information. MINOLTA Co., Ltd. 4002-7991-11 00091200...

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