Canon IR2200, IR3300, IR2800 manual Copy is completely black, 26 T

CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS

3.22The copy is completely black.

Scanning lamp

1)Is the scanning lamp ON during copying operation? NO: See “The scanning lamp fails to go ON.”

Margin

2)Is there a margin on copies made in normal mode? YES: Go to step 6.

NO: Go to step 3.

Drum unit

3)Is the drum unit fitted correctly? (Is it fully pushed inside?) NO: Mount it correctly.

Primary charging roller

4)Are the contact of the connectors, connection of the harness, and electri- cal continuity from J130-7 of the composite power supply PCB to the pri-

mary charring roller normal? (The resistance of the high-voltage cord for primary charging is 10 kΩ.)

NO: Correct the fault.

Mirror (position)

5)Generate test prints (PG>TYPE; 1 through 8). At this time, is the image on the photosensitive drum normal?

NO: Go to step 7.

DC controller PCB, Composite power supply PCB

6)Is the output of J301-B4 (+) on the DC controller PCB 0 V during copy- ing operation?

NO: Replace the DC controller PCB.

YES: Replace the composite power supply PCB.

Reader controller PCB, CCD unit

7)Try replacing the CCD unit. Is the problem corrected? NO: Replace the reader controller PCB.

YES: End.

4-26 T COPYRIGHT © 2001 CANON INC. CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001