COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4-17 T
3.12
The copy has a white spot (horizontal).
Exposure system
1) Generate a halftone test print in service mode. Enter ‘4’ to the following:
COPIER>PG>TYPE. Does the output image have a white spot?
NO:
Go to step 4.
Developing assembly
2) Does the problem occur at intervals of about 35 mm?
YES:
•
Clean the developing block members.
•
Dry wipe the surface of the developing cylinder.
•
If a scratch is found on the surface of the developing cylinder, re-
place the developing cylinder.
Drum unit
3) Does the problem occur at intervals of about 94 mm?
YES:
•
Clean the drum.
•
If a scratch is found on the drum, replace the drum unit.
Paper
4) Try paper fresh out of package.
YES: The paper may be moist. Advise the user on the correct method of
storing paper.
Transfer charging roller, Developing bias
5) Is there a white spot on the photosensitive drum during copying opera-
tion?
NO:
Check the transfer charging roller for leakage.
YES: Check the developing bias.
Summary of Contents for iR2200 Series
Page 8: ......
Page 12: ......
Page 30: ......
Page 32: ......
Page 54: ......
Page 86: ......
Page 90: ......
Page 94: ......
Page 96: ......
Page 124: ......
Page 142: ......
Page 152: ......
Page 160: ......
Page 168: ......
Page 178: ......
Page 180: ......
Page 222: ......
Page 224: ......
Page 278: ......
Page 280: ......
Page 298: ......
Page 300: ......
Page 324: ......
Page 368: ......
Page 386: ......
Page 388: ......
Page 404: ......
Page 414: ......
Page 416: ......
Page 422: ......
Page 424: ......
Page 434: ......
Page 436: ......
Page 440: ......
Page 468: ......
Page 473: ......
Page 550: ......
Page 552: ......
Page 658: ......
Page 704: ......
Page 706: ......
Page 754: ......
Page 756: ......
Page 760: ......