KIP C7800

• Code: 05-02
• Description: Drum Motor 3 Error
• Causes: “Abnormal output signal” shows “1” for longer than 100msec.
• Remedy: First of all, run Service Software “output check” No.0306 to monitor the motion of Drum Motor 3. The subsequent procedure depends on whether the motor operates.
  Drum Motor 3 NOT operate:
  Harness 1 Is the wiring OK between the followings? Drum Motor 3 (M14) Dev Drive PCB (PW12555C) Fuse F3 No Correct it.
  Drum Motor 3 (M14) Dev Drive PCB (PW12555C) 2 Can the problem be fixed by replacing Drum Motor or Dev Drive PCB? Yes OK
  Fuse F3 3 Check for continuity of Fuse F3. Is it OK? No Fuse broken: Check all the downstream components to eliminate the root cause first, and then replace the fuse.
  Main Control PCB (PW12520) 4 Can the problem be fixed by replacing the Main Control PCB? Yes OK
  Drum Motor 3 OK:
  Harness 1 Is the wiring OK between Drum Motor Sensors (PH42, PH43) and Dev Drive PCB (PW12555C)? No Correct it.
  Drum Motor Sensor (PH42, PH43) 2 Can the problem be fixed by replacing Drum Motor Sensor? Yes OK
  Dev Drive PCB (PW12555C) 3 Can the problem be fixed by replacing Dev Drive PCB? Yes OK
  Main Control PCB (PW12520) 4 Can the problem be fixed by replacing the Main Control PCB? Yes OK

• Code: 05-20
• Description: Image Corona 3 Output Error
• Causes: “Abnormal output signal” shows “1” for longer than 100msec.
• Remedy: Harness 1 Is the wiring OK between HV Power Supply PCB 3 (HVP3) and Dev Drive PCB (PW12555C)? No Correct it.
  HV1 Harness Image Corona Wire 2 Is there any resistance between HV1 harness on HVP3 and the ground? No Check HV1 harness and Image Corona Wire.
  HV Power Supply PCB 3 (HVP3) 3 Can the problem be fixed by replacing the HV Power Supply PCB? Yes OK
  Dev Drive PCB (PW12555C) 4 Can the problem be fixed by replacing the Dev Drive PCB? Yes OK
  Main Control PCB (PW12520) 5 Can the problem be fixed by replacing the Main Control PCB? Yes OK

• Code: 05-21
• Description: Transfer Roller Bias 3 Output Error
• Causes: “Abnormal output signal” shows “1” for longer than 100msec.
• Remedy: Harness 1 Is the wiring OK between HV Power Supply PCB 3 (HVP3) and Dev Drive PCB (PW12555C)? No Correct it.
  HV2 Harness Transfer Roller 3 2 Is there any resistance between HV2 harness on HVP3 and the ground? No Check HV2 harness and Transfer Roller.
  HV Power Supply PCB 3 (HVP3) 3 Can the problem be fixed by replacing the HV Power Supply PCB? Yes OK
  Dev Drive PCB (PW12555C) 4 Can the problem be fixed by replacing the Dev Drive PCB? Yes OK
  Main Control PCB (PW12520) 5 Can the problem be fixed by replacing the Main Control PCB? Yes OK

• Code: 05-23
• Description: Developer Bias 3 Output Error
• Causes: “Abnormal output signal” shows “1” for longer than 100msec.
• Remedy: Harness 1 Is the wiring OK between HV Power Supply PCB 3 (HVP3) and Dev Drive PCB (PW12555C)? No Correct it.
  OUT2 Harness Developer Unit (M) 2 Is there any resistance between OUT2 harness on HVP3 and the ground? No Check OUT2 harness and Developer Unit.
  HV Power Supply PCB 3 (HVP3) 3 Can the problem be fixed by replacing the HV Power Supply PCB? Yes OK
  Dev Drive PCB (PW12555C) 4 Can the problem be fixed by replacing the Dev Drive PCB? Yes OK
  Main Control PCB (PW12520) 5 Can the problem be fixed by replacing the Main Control PCB? Yes OK

• Code: 05-30, 05-31, 05-32
• Description: LED Head 3 Error 05-30: Head Array 1 05-31: Head Array 2 05-32: Head Array 3
• Causes:
• Remedy: Harness 1 Is the wiring OK between the followings? LED Head 3 (M) LED Terminal PCB (PW12521C) Main Control PCB (PW12520) No Correct it.
  LED Head LED Terminal PCB (PW12521C) Signal Cable 2 Can the problem be fixed by replacing LED Head, LED Terminal PCB or Signal Cable? Yes OK
  Fuse F11 3 Check for continuity of Fuse F11. Is it OK? No Fuse broken: Check all the downstream components to eliminate the root cause first, and then replace the fuse.
  Main Control PCB (PW12520) 4 Can the problem be fixed by replacing the Main Control PCB? Yes OK

• Code: 05-36
• Description: Density Control 3 Error
• Causes: Density is not adjusted satisfactory by Density Control.
• Remedy: Toner Density Sensor (PH56) LED Head (M) 1 Does Toner Density Sensor or LED Head have toner dirt? Yes Dust it off.
  Harness 2 Is the wiring OK between Toner Density Sensor and Fuser Drive PCB (PW12556)? No Correct it.
  Toner Density Sensor (PH56) 3 Can the problem be fixed by replacing Density Sensor? Yes OK
  Fuser Drive PCB (PW12556) 4 Can the problem be fixed by replacing the Fuser Drive PCB? Yes OK
  Main Control PCB (PW12520) 5 Can the problem be fixed by replacing the Main Control PCB? Yes OK