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Konica Minolta PF-122 Service Manual

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PF-122
Service Manual
19971

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Summary of Contents for Konica Minolta PF-122

  • Page 1 PF-122 Service Manual 19971...

  • Page 3: Table Of Contents

    CONTENTS GENERAL 1. Specifications ....................G-1 2. Revolving Parts Layout Drawing ..............G-1 3. Electric Parts Layout Drawing ................G-2 DIS/REASSEMBLY, ADJUSTMENT 1. Maintenance Schedule ..................D-1 2. Disassembly and Cleaning ................D-2 2-1. Removal of the Outer Cover ..............D-2 2-2. Removal of the Drawer ................D-3 2-3.

  • Page 5: General

    GENERAL...

  • Page 7: Specifications

    Specifications Name : Large Capacity Cabinet Type : Front loading type LCC Installation : Desk type Paper Type : Plain paper 15lb. to 24lb. (56 g/m to 90 g/m recycled paper 16lb. to 24lb. (60 g/m to 90 g/m Paper Size : A4C, Letter C Capacity : 2750 sheets 21.3lb.

  • Page 8: Electric Parts Layout Drawing

    Electric Parts Layout Drawing PC2-LCC SL1-LCC M2-LCC PWB-E LCC M1-LCC PWB-C1 LCC PC1-LCC PC5-LCC PC6-LCC PC3-LCC PC4-LCC PC13-LCC PWB-H LCC PC10-LCC PC14-LCC M5-LCC PC7-LCC M4-LCC PC8-LCC UN1-LCC PC9-LCC M3-LCC PC12-LCC PC11-LCC 4348M003AA Symbol Name Symbol Name PWB-C1 Control Board PC4-LCC Tray Upper Limit Sensor Paper Empty Board PC5-LCC...

  • Page 9: Dis/Reassembly, Adjustment

    DIS/REASSEMBLY, ADJUSTMENT...

  • Page 11: Maintenance Schedule

    Maintenance Schedule • To ensure that the copier produces good copies and to extend its service life, it is recom- mended that the maintenance jobs described in this schedule be carried out as instructed. PM Parts Item Used for Cleaning Ref.

  • Page 12: Disassembly And Cleaning

    Disassembly and Cleaning 2-1. Removal of the Outer Cover 4348D001AA 4348D002AB Name Removal Procedure Front Right Cover Remove two screws and the drawer. Rear Right Cover Remove two screws and the drawer. Open the Right Door. → Remove the Right Door. Right Door Lower Right Cover Remove two screws and the drawer.

  • Page 13: Removal Of The Drawer

    2-2. Removal of the Drawer 1. Press the Drawer Eject Button and slide out the drawer. 2. Remove the paper. 3. Remove four screws and slide out the drawer. 4348D503AA 4. Remove the connector. 5. Remove two screws and the Connector Board. 6.
  • Page 14 5. Remove two screws and the Driver Cover. 4348D507AA 6. Remove three screws and the Driver Mounting Plate Assy. 4348D508AA NOTE • When reinstalling, use caution in the engagement of the gears. 1161D017AA 7. Remove three screws and the Reinforcement Bracket Assy.
  • Page 15 10. Remove one Ground Plate. 11. Remove four Cable Holding Jigs and the Main Drawer. NOTE • Use care not to bend the wires. 4348D511AA 12. Remove four screws and the Rear Trailing Edge Assy. 4348D512AA 13. Remove four screws and the Front Trailing Edge Assy.

  • Page 16: Removal Of The Pickup Roller/Take-Up Roller/Separator Roll Assy

    2-4. Removal of the Pickup Roller/Take-Up Roller/Separator Roll Assy 1. Remove the Rear Right Cover. 2. Remove the Right Door. 3. Remove two screws and the Paper Separator Roll Mounting Bracket Assy. 4348D003AA 4. Remove three C rings and the Paper Separator Roll Assy.
  • Page 17 8. Remove two C-rings and remove the bushing. 9. Remove the Roll Assy. 4030D059AA 10. Remove two C-rings and remove the bushing. 11. Remove the Roll Assy. 4030D046AA 12. Remove one C-clip and remove the Paper Take- Up Roll. 4030D047AA 13.
  • Page 18 Precaution for Reinstallation of the Separator Roll Assy • Install the Separator Roll Assy while pressing the holder down so that it aligns to the metal bracket of the copier. 4348D517AA...

  • Page 19: Cleaning Of The Pickup Roller/Paper Take-Up Roller/Separator Roll

    2-5. Cleaning of the Pickup Roller/Paper Take-Up Roller/Separa- tor Roll 1. Remove the Rear Right Cover. 2. Remove the Right Door. 3. Remove two screws and the Paper Separator Roll Mounting Bracket Assy. 4348D003AA 4. Using a soft cloth dampened with alcohol, wipe the Separator Roll clean of dirt.

  • Page 20: Adjustment

    Adjustment 3-1. Registration CD NOTE Make this adjustment after any of the following procedures has been performed. • When the PH Unit has been replaced. • When the image on the copy is offset in the FD direction. • When a faint image occurs on the leading edge of the image. 1.
  • Page 21 6. Touch the 3rd Drawer key. 7. Press the Start key. 4348P016CA 8. Measure the width of printed reference line A. Specification: 10 mm ± 2.0 mm 9. If width A falls within the specified range, finish the adjustment procedure. If outside the specified range, perform the adjust- ment below.
  • Page 22 13. Press the Drawer Eject Button and slide out the drawer. 4348U010AA 14. Open the Right Door. 15. Loosen the adjustment lock screw D and turn screw E to make the adjustment. NOTE • Do not damage the passage surface of the Right Door.

  • Page 23: Registration Fd

    3-2. Registration FD NOTE Make this adjustment after any of the following procedures has been performed. • When the PH Unit has been replaced. • When the image on the copy is offset in the FD direction. 1. Display Tech. Rep. Mode. 4344D546CA 2.
  • Page 24 6. Touch the 3rd Drawer key. 7. Press the Start key. 4348P016CA 8. Measure the width of printed reference line B. Specification: 11.3 mm±1.5 mm 9. If width B falls within the specified range, finish the adjustment procedure. If outside the specified range, perform the adjust- ment below.

  • Page 25: Shifter Movement Timing Belt Adjustment

    3-3. Shifter Movement Timing Belt Adjustment 1. Slide out the Drawer and remove it. 2. Lift the Main Drawer, and remove two screws fix- ing the Shift Tray. NOTE • When reinstalling, use caution because the wire of the Main Drawer comes off easily. 1075D311AA 3.

  • Page 27: Troubleshooting

    TROUBLESHOOTING...

  • Page 29: Introduction

    Introduction • Information required for troubleshooting and steps that must be performed are described in this chapter. 1-1. Electrical Components Check Procedure • If a paper misfeed or malfunction occurs, perform the following operation to check the condition of the electrical components. Sensor Step Check...

  • Page 30: Switch

    Switch Step Check Result Action Replace the switch. Does the input signal (NO) of the control board change from L to H when the switch is turned on? Replace the con- trol board. Not Use 4025T523AB Solenoid Step Check Result Action Replace the con- trol board.

  • Page 31: Clutch

    Clutch Step Check Result Action Replace the con- trol board. Does the output signal of the control board change from H to L when the clutch is activated? Replace the clutch. 4025T528AA Motor Step Check Result Action Replace the con- Does the LOCK signal of the control board switch to H trol board.
  • Page 32 Step Check Result Action Does the input signal of the control board change from YES Replace the motor. H to L when the motor is turned on? Replace the con- (Input signals differ according to the direction of rota- trol board. tion) 4025T525AA Step...

  • Page 33: I/O Check

    I/O CHECK • For an easy and safe operation check of the sensors, the sensor input data is checked when the copier is in standby (including when a misfeed or a malfunction occurs or when a part is not correctly closed) to determine if signals are properly input. 1.

  • Page 34: I/O Check List

    2-1. I/O Check List Operation Characteristics/ CN/PJ Panel Display Symbol Panel Display Parts/Signal Name Input Board LCC Vertical Transport Paper not PJ5C1 PC2-LCC Vertical Transport Paper present Sensor present LCC-5 Paper not PJ5C1 Control PC1-LCC Paper Take-Up Paper Take-Up Sensor Paper present present LCC-2...

  • Page 35: Misfeed Detection/Troubleshooting Procedures

    Misfeed Detection/Troubleshooting Procedures 3-1. Initial Checks • When a paper misfeed occurs, first perform the following initial checks. Check Item Action Does paper meet product specifications? Replace paper. Replace paper. Is the paper curled, wavy, or damp? Instruct the user on the correct paper stor- age procedures.

  • Page 36: Misfeed-Detecting Sensor Layout

    3-2. Misfeed-Detecting Sensor Layout LCC Vertical Transport Sensor (PC2-LCC) LCC Paper Take-Up Sensor (PC1-LCC) 4348T502AA...

  • Page 37: Misfeed Detected

    3-3. Misfeed Detected When a paper misfeed occurs, the misfeed message, misfeed location (⊗), and paper loca- tion (❍) are displayed on the Touch Panel of the copier. 4348T503CA...

  • Page 38: Misfeed Detection Timing/Troubleshooting Procedures

    3-4. Misfeed Detection Timing/Troubleshooting Procedures LCC Paper Take-Up Misfeed <Detection Timing> Type Description The leading edge of the paper does not block the LCC Vertical Paper Take-Up Section Transport Sensor (PC2-LCC) even after the set period of time misfeed detection has elapsed after the LCC Paper Feed Motor is energized.

  • Page 39: Malfunction Detection/Troubleshooting Procedure

    Malfunction Detection/Troubleshooting Procedure 4-1. Malfunction Detection • If any of the following incorrect operations are detected, the corresponding malfunction code appears on the copier's Touch Panel. • To cancel the malfunction, open, then close the copier’s Front Door. Code Description Detection Timing The Elevator Motor Pulse Sensor (PC10-LCC) cannot detect both edges of H/L even after the...
  • Page 40 Code Description Detection Timing The drawer cannot be determined to be out of position even after the set period of time has C0996 LCC Lock Release Failure elapsed after the Tray Lock Solenoid (SL1- LCC) is energized after the lowering operation is finished.

  • Page 41: Malfunction Detection Timing And Troubleshooting Procedure

    Malfunction Detection Timing and Troubleshooting Procedure C0B56: LCC Elevator Motor Failure <Detection Timing> Malfunction Description Code The Elevator Motor Pulse Sensor (PC10-LCC) cannot detect both edges C0990 of H/L even after the set period of time has elapsed while the Elevator Motor (M5-LCC) is turning backward/forward (raise/lower).

  • Page 42: C0991: Lcc Lift Failure

    C0991: LCC Lift Failure <Detection Timing> Malfunction Description Code • The Tray Upper Limit Sensor (PC4-LCC) is not unblocked even after the set period of time has elapsed after the paper lift-up operation began. • The Tray Upper Limit Sensor (PC4-LCC) is not blocked even after the set pulse is detected by the Elevator Motor Pulse Sensor (PC10-LCC) after the paper lift-up operation began.

  • Page 43: C0996: Lcc Lock Release Failure

    C0996: LCC Lock Release Failure <Detection Timing> Malfunction Description Code The drawer cannot be determined to be out of position even after the set C0996 period of time has elapsed after the Tray Lock Solenoid (SL1-LCC) is energized after the lowering operation is finished. Action Relevant Electrical Components Tray Lock Solenoid (SL1-LCC)

  • Page 44: C0997: Lcc Shift Gate Operation Failure

    C0997: LCC Shift Gate Operation Failure <Detection Timing> Malfunction Description Code The Shift Gate Home Position Sensor (PC14-LCC) cannot be set to L even after the set period of time has elapsed after the operation of the C0997 Shift Gate Motor (M3-LCC) began with the Shift Gate Home Position Sensor (PC14-LCC) set to L.

  • Page 45: C0998: Lcc Shift Failure

    C0998: LCC Shift Failure <Detection Timing> Malfunction Description Code • The Shifter Return Position Sensor (PC11-LCC) is not unblocked even after the set period of time has elapsed after the shift operation began (shift to the right). • The Shifter Return Position Sensor (PC11-LCC) is not unblocked even after the set pulse is detected by the Shift Motor Pulse Sensor (PC8-LCC) after the shift operation began (shift to the right).

  • Page 46: C0998: Lcc Shift Motor Failure

    C0998: LCC Shift Motor Failure <Detection Timing> Malfunction Description Code The Shift Motor Pulse Sensor (PC8-LCC) cannot detect both edges of C099C H/L even after the set period of time has elapsed while the Shift Motor (M4-LCC) is turning backward/forward (raise/lower). Action Relevant Electrical Components Shift Motor (M4-LCC)

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