Canon CLC 1120 Service Manual page 600

Cause
Photosensitive
drum
Fixing assembly
Optical path
Caution:
Be sure to adjust the CCD after replacing the scanning lamp, mirror, CCD, or any other
optical part.
COPYRIGHT © 1999 CANON INC.
Step
10 Are there scratches in the
peripheral direction of the
photosensitive surface?
11 Are there scratches in the
peripheral direction of the fixing
upper roller?
12 Are there scratches and dents in the
axial direction of the fixing roller
(upper, lower)?
13 Is there a fault in the fixing oil
applying assembly, oil hose, oil
filter, oil pump, and oil removing
blade?
14 Clean the standard white plate,
scanning lamp, and reflecting plate,
and mirror. Is the problem
corrected?
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Checks Yes/No Action
NO Replace the
photosensitive drum. If
scratches are found,
remove the cause. Check
the cleaning blade for
damage by the
photosensitive drum.
YES · Replace the fixing
upper roller.
· Check the cleaning
belt take-up
mechanism.
· Check the position of
the fixing separation
claw and the
separation guide.
· Check the fixing blade
for damage.
YES Replace the fixing roller.
YES Remove the cause of the
fault, and replace the
part.
NO Check the inlet to the
fixing assembly for dirt.
If the problem is noted
on the trailing edge of
the image only, replace
the fixing roller.
YES End.
NO Clean the surface of the
CCD with a blower
brush. If the problem is
not corrected, replace
the CCD unit.
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