Canon CLC 1120 Service Manual page 640
Color laser copier
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Also See for CLC 1120:
- Service handbook (274 pages) ,
- Service manual (20 pages) ,
- Service manual (965 pages)
Table of Contents
15
E061
Cause
------------
------------
Potential sensor
unit
Pre-exposure
lamp
Primary charging
assembly
High-voltage
cable
COPYRIGHT © 1999 CANON INC.
Step
1
Is the setting of
COPIER>ADJUST>V-CONT-M/
C/Y/K in service mode identical to
the settings recorded on the service
label?
2
Check the detail code in service
mode (COPIER>DISPLAY>ERR).
Is it 0000 or 0001?
Is it 0010?
Is it 0020?
Is it 0030, 0031, or 0032?
Is it 0040?
Is it 0050, 0051, 0052, or 0053?
Is it 0070, 0071, xx80, or xx81?
Is it 0060 or 009x?
3
Turn on and off the power switch.
Does LED1 on the potential
measurement PCB remain on
during potential control?
4
Does the pre-exposure lamp turn on
during copying operation?
5
Is the primary charging assembly
connected properly?
6
Is the primary charging wire
broken or soiled?
7
Are there traces of leakage on the
primary charging assembly?
8
Is there electrical conductivity from
the primary charging wire to the
high-voltage transformer (HVT-
DC)?
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Checks
Yes/No
Action
NO
Enter the settings from
the service label newly.
YES
Go to step 3.
YES
Go to step 4.
YES
Go to step 5.
YES
Go to step 9.
YES
Go to step 12.
YES
Go to step 16.
YES
Go to step 19.
YES
Go to step 20.
NO
Replace the potential
sensor unit.
YES
Check the wiring from
the DC driver PC to the
potential sensor.
NO
Check the wiring from
the DC driver PCB to
the pre-exposure lamp;
if normal, replace the
pre-exposure lamp.
YES
Check the potential
sensor unit.
NO
Connect the assembly
properly.
YES
Clean or route the
charging wire once
again.
YES
Replace the primary
charging assembly.
NO
Check the primary high-
voltage cable.
YES
Replace the HVT-DC
PCB.
13-113
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