The Copy Is Foggy (Horizontal) - Canon iR2200 Service Handbook

CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS

3.19 The copy is foggy (horizontal).

1) Does the problem occur at the same position on all copies made in Di-
rect.
YES: Go to step 5.
Scanning lamp
2) Does the scanning lamp flicker while the scanner is moving forward?
YES: Check the scanning lamp and the inverter PCB.
Drum unit
3) Does the problem occur at intervals of 94 mm?
YES: Replace the drum unit.
Wiring
4) Is the wiring between the scanning lamp, the inverter PCB and the
reader assembly?
NO:
Developing assembly
5) Is the coating of toner on the developing cylinder normal?
NO:
Scanner, Feeding system
6) Make reduced copies (about 50% to 60%), and compare them against
copies made in Direct. Is the position of the problem different?
YES: Check the scanner.
NO:
4-22
Correct the wiring.
Check the developing bias.
Check the feeding assembly.