Canon iR5000i Service Manual page 642

CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4.1.14 E100
BD PCB
1) Try replacing the BD PCB. Is the problem corrected?
YES: End.
Laser output
2) Try replacing the laser unit. Is the problem corrected?
YES: End.
Laser scanner unit, DC controller PCB
3) Try replacing the laser unit. Is the problem corrected?
YES: End.
NO:
4.1.15 E110
Connectors
1) Is the connector (J116) on the DC controller PCB connected se-
NO:
Connector
2) Open the manual feed cover, and remove the developing assembly
NO:
Laser scanner unit, DC controller PCB
3) Try replacing the laser scanner unit. Is the problem corrected?
YES: End.
NO:
4.1.16 E121
Foreign object
1) Is there a foreign object that hinders the rotation of the fan in the
YES: Remove the foreign object.
4-26 T
Check the wiring; if normal, replace the DC controller PCB.
curely?
Connect the connector securely.
locking plate. Is the relay connector (5-pin) behind the laser scan-
ner plate connected securely? (Do NOT detach the lid of the laser
scanner unit.)
Connect it securely.
Check the wiring; if normal, replace the DC controller PCB.
rotating mechanism of the controller cooling fan?
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