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COPYRIGHT
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2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4-21 T
3.18 The copy is blurred.
Scanner drive cable
1) Is the cable wound on the wire pulley twisted or twined when the scan-
ner is moving? Is there e foreign matter in the mirror pulley assembly?
YES:
• Route the cable correctly.
• Replace the cable.
• Remove the foreign matter.
Scanner rail
2) Move the No. 1 mirror base slowly by hand. Does it move smoothly?
NO: Clean the surface of the scanner rail with alcohol; thereafter, apply
a small amount of silicone oil.
Drum drive assembly, Photosensitive drum
3) Does the problem occur at intervals of about 94 mm?
YES:
• Check the drum drive assembly.
• Check the drum ends (where developing block members remain in
contact) for a scratch or foreign matter.
Developing gear, Drum drive assembly, Drum unit
4) Does the problem occur at intervals of about 35 mm?
YES: Check the developing assembly.
NO:
• Check the drum drive assembly.
• Replace the drum unit.