User Guide

COPYRIGHT © 1999 CANON INC. CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
13-339
CHAPTER 13 TROUBLESHOOTING
Code Cause
· The deck lifter motor (M101) is
faulty.
· The deck lifter position sensor
(PS104) is faulty.
· The deck lifter cable is broken.
· The deck driver PCB is faulty.
· The duplexing paper jogging guide
motor (PM14) is faulty.
· The duplexing paper jogging guide
HP sensor (PS40) is faulty.
· The duplexing driver PCB is
faulty.
· The CPU PCB is faulty.
· The potential sensor is faulty.
· The pre-exposure lamp is faulty.
· The primary high-voltage output is
faulty.
· The grid bias is absent.
· The grid bias is not controlled
properly.
· The grid bias output is faulty.
· The post-cleaning charging output
is faulty.
· The laser emission is faulty.
· The bending mirror is faulty.
· The laser shutter is faulty.
Timing of detection
The deck lifter position sensor
cannot detect the deck lifter even
when the deck lifter UP signal has
been kept on for a specific period of
time.
0000 The paper jogging guide HP
sensor does not go '0' when
the paper jogging motor has
been kept on for a specific
period of time.
0001 The paper jogging guide HP
sensor does not go '1' when
the paper jogging guide motor
has been kept on for a specific
period of time.
Potential Control-Related Error
VDI: potential during initial rotation
Vd3: post-cleaning charging area
during dark area attenuation
potential measurement
offset value: value determined in
service mode
(FUNCTION>DPC>OFST)
xx indicates the color of a
developing assembly.
xx=01: M
xx=02: C
xx=03: Y
xx=04: Bk
0000 All Vd/VL is 10 V or less.
0001 The offset value is not 100 ±
50.
0010 VL3 is 200 V or less.
0020 Vd1/Vd2/VdI is 30V or less.
0030 Vd1/Vd2/VdI is 100 V or less.
0031 VdI/Vd2/VdI is 900 V or
more.
0032 The difference between Vd1
and Vd2 is 100 V or less.
0040 Vd3 is 100 V or less.
0050 The difference between Vd1
and VL1 is 30 V or less and,
in addition, Vd1 is 350 V or
more; or, the difference
between Vd2 and VL2 is 30 V
or less and, in addition, Vd2 is
550 V or more.
E041
E051
E061