Troubleshooting Malfunctions; Finisher Unit; E500 (Communication With Copier) - Canon SADDLE FINISHER K3 Service Manual

CHAPTER 5 TROUBLESHOOTING

3 Troubleshooting Malfunctions

3.1 Finisher Unit

3.1.1 E500 (communication with copier)

Finisher controller PCB, Cover DC controller PCB
1) Turn off and then on the copier's power switch. Is the problem cor-
YES: End.
Fuse PCB
2) Are the communication line of the fuse PCB and the grounding
NO:
Switching regulator
3) Is the voltage between J85-1 (+) and J85-2 (-) on the stitching regu-
NO:
Wiring
4) Is the wiring between the finisher controller PCB and the switching
5) Is the wiring between the copier DC controller PCB and the fuse
NO:
Finisher controller PCB, Copier DC controller PCB
6) Replace the finisher controller PCB. Is the problem corrected?
YES: End.
NO:
5-72
COPYRIGHT© 2001 CANON INC.
rected?
wire normal?
J716-7 and J717-1
J716-6 and J717-3
J716-4 and J717-4
J716-5 and J717-5
Replace the fuse PCB.
lator 5 V?
Replace the switching regulator.
regulator normal?
PCB normal?
Correct the wiring.
Replace the copier DC controller PCB.
2000 2000 2000 2000 CANON SADDLE FINISHER K3/K4 REV.0 MAR. 2001