E251; E302; E320 - Canon iR8500 Servise Manual

4.1.39 E251

Foreign matter
1) Is there foreign matter that prevents the rotation of the fan around
YES: Remove the foreign matter.
Connector
2) Is the connector J1110 on the Reader controller PCB connected se-
NO:
Inverter cooling fan (FM9), Reader controller PCB
3) Try replacing the inverter cooling fan (FM9). Is the problem cor-
NO:
YES: Replace the Reader controller PCB.

4.1.40 E302

4.1.41 E320

Connector
1) Are the connectors on the CCD PCB (J1502, J1503) and the Reader
NO:
CCD PCB, Reader controller PCB
2) Try replacing the CCD PCB. Is the problem corrected?
YES: End.
NO:
COPYRIGHT© 2001 CANON INC.
the inverter cooling fan?
curely?
Connect the connector securely.
rected?
End.
controller PCB (J1105) connected securely?
Connect the connectors securely.
Replace the Reader controller PCB.
2000 2000 2000 2000
CHAPTER 6 TROUBLESHOOTING
CANON iR8500 REV.0 MAR. 2001
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