Canon IR2800, IR3300, IR2200 manual Copy is foggy horizontal, 22 T

CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS

3.19The 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.

4-22 T COPYRIGHT © 2001 CANON INC. CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001