5-26
CHAPTER 5 TROUBLESHOOTING
4.2.4 C8410, Punch Motor Fault (detail code: 01/02)
Punch motor home position sensor (PI1P)
1) Check the punch home position sensor. Is the sensor normal?
NO:
Replace the sensor.
Punch motor clock sensor (PI3P)
2) Check the punch motor clock sensor. Is the sensor normal?
NO:
Replace the sensor.
Wiring
3) Is the wiring between the finisher controller PCB and the sensor normal?
NO:
Correct the wiring.
Punch mechanism, Punch motor (M1P)
4) Is there a fault in the punch mechanism?
YES: Correct the punch mechanism.
NO:
Replace the punch motor.
Punch controller PCB, Finisher controller PCB
5) Try replacing the punch controller PCB. Is the problem corrected?
YES: End.
NO:
Replace the fisher controller PCB.
T05-402-04
4.2.5 C8450, Punch Sensor (horizontal registration) Fault (detail code: 01
through 05)
Horizontal registration sensor (photosensor PCB/LED PCB)
1) Check the horizontal registration sensor. Is the sensor normal?
NO:
Replace the sensor.
Wiring
2) Is the wiring between the punch controller PCB and the horizontal regis-
tration sensor normal?
NO:
Correct the wiring.
Punch controller PCB, Finisher controller PCB
3) Try replacing the punch controller PCB. Is the problem correct?
YES: End.
NO:
Replace the finisher controller PCB.
T05-402-05
Summary of Contents for DF-75
Page 1: ...SERVICE MANUAL Published in Aug 01 5FG70760 DF 75...
Page 12: ...CHAPTER 1 GENERAL DESCRIPTION...
Page 24: ...CHAPTER 2 OUTLINE OF OPERATION...
Page 89: ...CHAPTER 3 MECHANICAL SYSTEMS...
Page 132: ...CHAPTER 4 MAINTENANCE AND INSPECTION...
Page 135: ...CHAPTER 5 TROUBLESHOOTING...
Page 142: ...5 7 CHAPTER 5 TROUBLESHOOTING...
Page 145: ...5 10 CHAPTER 5 TROUBLESHOOTING 2 1 2 Motor PCBs M7 M8 M5 M4 M3 M6 M1 M2 1 F05 201 02...
Page 175: ...5 40 CHAPTER 5 TROUBLESHOOTING...
Page 176: ...APPENDIX...
Page 180: ...A 4...
Page 184: ...A 8 APPENDIX...
Page 198: ...A 22...