E111; E121-0001 - Canon iR8500 Service Manual

CHAPTER 6 TROUBLESHOOTING

4.1.24 E111

Foreign matter
1) Is there foreign matter that prevents the rotation of the fan near the
YES: Remove the foreign matter.
Connector
2) Is the connector J503 on the DC controller PCB connected se-
NO:
Laser scanner fan (FM14), DC controller PCB
3) Try replacing the laser scanner fan (FM14). Is the problem cor-
YES: End.
NO:

4.1.25 E121-0001

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 J503 on the Reader controller PCB connected se-
NO:
Scanner cooling fan (FM3), Reader controller PCB
3) Try replacing the scanner cooling fan (FM3). Is the problem cor-
NO:
YES: Replace the Reader controller PCB.
6-108
laser scanner fan?
curely?
Connect it securely.
rected?
Replace the DC controller PCB.
the scanner cooling fan?
curely?
Connect the connector securely.
rected?
End.
COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001