Kyocera Mita DF-75, Service Manual

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5-20
CHAPTER 5 TROUBLESHOOTING
4.1.7 C8340, Staple/Fold Motor Fault (detail code: 03)
Staple/fold clock sensor (PI14)
1) Check the staple/fold clock sensor. Is the sensor normal?
NO: Replace the sensor.
Finisher controller PCB, Stapler unit
2) Does the staple/fold motor operate at the appropriate timing?
YES: Replace the finisher controller PCB.
NO:
Check the stapler unit drive mechanism: if faulty, correct it; if nor-
mal, go to step 3.
Staple/fold motor (M7), Finisher controller PCB
3) Try replacing the staple/fold motor. Is the problem corrected?
YES: End.
NO:
Try replacing the finisher controller PCB.
T05-401-07
4.1.8 C8340, Staple/Fold Motor Fault (detail code: 01/02)
Folding home position sensor (PI11)
1) Check the folding home position sensor. Is the sensor normal?
NO: Replace the sensor.
Wiring
2) Is the wiring between the finisher controller PCB and the staple/fold mo-
tor normal?
NO: Correct the wiring.
Saddle unit
3) Try turning the fold jam releasing dial. Is there mechanical trapping?
YES: Correct the mechanical mechanism.
Staple/fold motor (M7), Finisher controller PCB
4) Try replacing the staple/fold motor. Is the problem corrected?
YES: End.
NO:
Replace the finisher controller PCB.
T05-401-08