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COPYRIGHT © 2001 CANON INC. CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Cause
Potential control
fault
Transfer unit
Developing
motor
Transfer high
voltage
Step
1
2
3
4
5
Checks
Generate a horizontal test print (PG-
TYPE=10). Is the image normal?
Execute ‘EPC’ under ‘FUNC’ in
service mode. Is the copy image
generated immediately after the
execution normal?
Is a fault noted on the transfer blade?
Is the developing cylinder rotating
during development?
Turn off the power switch during
development. Lower the transfer unit,
and release the transfer unit and the
photosensitive drum by hand; then,
lift the hopper to remove the photo-
sensitive drum unit. Is the image on
the drum normal?
Yes/No
YES
YES
YES
NO
YES
NO
Action
Check the wiring of the
following PCBs; if normal,
replace it.
• Analog processor PCB
• Video controller PCB
• Image processor PCB
• CCD unit
End.
Replace it.
Check the developing
motor.
• Check the transfer
high-voltage system.
• Check the high-voltage
cable from the HVT
PCB to the transfer
unit; if normal, replace
the HVT PCB.
• Check the internal
static eliminating high-
voltage system.
• Check the developing
bias system.
16
The copy is blank.
Содержание Vizcam 1000
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Страница 840: ...0501GR PRINTED IN JAPAN IMPRIME AU JAPON This publication is printed on 100 reprocessed paper...