Canon PC1000s Service Manual page 322

CHAPTER 7 TROUBLESHOOTING
1
While the fan is rotating, fan lock state is detected for 10 sec or more continu-
ously.
Main cause
Action
1
The fan is faulty. The DC controller PCB is faulty. The image processor PCB
is faulty.
1. Foreign matter
Is there any foreign matter that hinders the rotation of the heat discharge fan?
YES:
Remove the foreign matter.
2. Wiring, Connection
Are the wiring and connection (connectors) of the fan normal?
NO: Correct them.
3.
Fan
Try replacing the fan. Is the problem corrected?
YES: End.
4. DC controller PCBAmage processors PCB
Try replacing the DC controller PCB. Is the problemcorrected?
YES:
End.
NO:
Replace the image processor PCB.
COPYRlGHTQ2002 CANON INC.
CANON PClOOMrnageCLASS 0600s REV.
1
WG.2002