Canon 1130 Service Manual page 664

20 The copy has uneven density (magenta).
Cause
------------
Transfer frame
Registration roller
clutch (CL9)
Photosensitive
drum shaft
Flywheel
The copy has color displacement (entire area; cyan; side A on transfer
21
drum only).
Cause
------------
Attraction roller
unit
COPYRIGHT © 2002 CANON INC.
Step
1 Generate a halftone test print using
TYPE=5 (DENS-M/C/Y/K=25,
TXPH=0).
2 With the transfer drum frame
locked in position, is there a gap
around the frame?
3 Is the holder slide (FB2-0601) on
the copier's front side plate
damaged or displaced?
4 Is the mechanism used to release
the registration roller operating
normally?
5 Is the screw on the core fixing roll
of the photosensitive drum loose?
6 Is the fixing screw on the flywheel
lose?
7 Is the flywheel mounted at an
angle?
Step
1 Generate a grid test print
(TYPE=6), and make a check.
2 Is the attraction roller moved/
rotated smoothly?
CANON CLC1100/1130/1150/1160/1180 REV.1 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Checks
Checks
Yes/No Action
YES Check the upper locking
member (FB2-0609) of
the transfer frame for
deformation, damage,
and wrong orientation.
Further, check the
mounting screw for
breakage.
YES Mount the slide
properly, or replace it.
NO Replace the mechanism.
YES Tighten the screw.
YES Tighten the fixing
screw.
YES Mount the flywheel
properly.
NO Set
ADJUST>MISC>ATT-
RTN3, ATT-RTN4 in
service mode to '1'.
Yes/No Action
NO Replace the roller.
YES Check the scraper for
deformation, and replace
it if necessary.
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