COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4-22 T
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: Correct the wiring.
Developing assembly
5) Is the coating of toner on the developing cylinder normal?
NO: Check the developing bias.
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: Check the feeding assembly.