E804; E805 - Canon iR8500 Service Manual

CHAPTER 6 TROUBLESHOOTING

4.1.72 E804

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 J505 on the DC controller PCB connected se-
NO:
Power supply fan 1/2 (FM11/12), DC controller PCB
3) Try replacing the power supply cooling fan (1/2). Is the problem
NO:
YES: Replace the DC controller PCB.

4.1.73 E805

Foreign matter
1) Is three foreign matter that prevents the rotation of the fan around
YES: Remove the foreign matter.
Connector
2) Is the connector (J503) on the DC controller PCB connected se-
NO:
Fixing the discharge fan (FM2), DC controller PCB
3) Try replacing the fixing heat discharge fan (FM2). Is the problem
NO:
YES: Replace the DC controller PCB.
6-128
the power supply cooling fan (1/2)?
curely?
Connect the connector securely.
corrected?
End.
the fixing assembly heat discharge fan?
curely?
Connect the connector securely.
corrected?
End.
COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001