Canon 1000 Service Manual page 509

Cause Step
Transfer unit
Fixing unit
Separation
assembly
Optical path
CCD, Standard
white plate (dirt,
scratches)
COPYRIGHT © 2001 CANON INC.
Checks
7 Are there scratches or fault on the
transfer belt?
8 Are there scratches or fault on the
transfer blade?
9 Clean the fixing assembly inlet guide
(upper, lower). Is the problem cor-
rected?
10 Are there scratches or dents in the
axial direction of the fixing roller
(upper, lower)?
11 Is there a fault in the take-up mecha-
nism of the web and cleaning opera-
tion?
12 Check the fixing assembly separa-
tion claw or the separation guide for
an error.
13 Are there scratches or dents on the
oil removing blade?
14 Clean the separation assembly. Is
the problem corrected?
15 Clean the standard white plate,
scanning lamp, reflecting lamp cover,
mirror, reflecting mirror, and lens. Is
the problem corrected?
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Yes/No
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
Action
Replace the transfer
blade.
Replace the transfer belt.
If soiled with toner, clean
it.
End.
Remove the cause of the
scratches, and replace
the fixing roller.
Remove the cause of the
fault, and replace the part.
Clean or replace it.
Clean or replace it.
End.
End.
Try the following:
• Change the setting of
'ADJUST-S' under
'ADJUST' in service
mode to change the
shading position.
• Replace the standard
white plate.
• Replace the CCD unit.
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