E820; E823 - Canon iR105 Service Manual

4.1.67 E820

Foreign matter
1) Is there foreign matter that prevents the rotation of the drum fan?
YES: Remove the foreign matter.
Connector
2) Is the connector (J512) on the DC controller PCB connected
NO:
Drum fan (FM8), DC controller PCB
3) Try replacing the drum fan (FM8). Is the problem corrected?
NO:
YES: Replace the DC controller PCB.

4.1.68 E823

Foreign matter
1) Is there foreign matter that prevents the rotation of the pre-transfer
YES: Remove the foreign matter.
Connector
2) Is the connector (J504) on the DC controller PCB firmly con-
NO:
Pre-transfer charging assembly fan (FM10), DC controller PCB
3) Try replacing the pre-transfer charging assembly (FM10). Is the
NO:
YES: Replace the DC controller PCB.
COPYRIGHT© 2001 CANON INC.
firmly?
Connect it correctly.
End.
charging assembly fan?
nected?
Connect it firmly.
problem corrected?
End.
2000 2000 2000 2000
CHAPTER 6 TROUBLESHOOTING
CANON iR105 REV.0 JULY 2001
6-121