Canon CLC 1120 Service Handbook page 239

Code
• The deck lifter motor (M101) is
E041
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
E050
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.
E061
• 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.
Cause
CHAPTER 5 SELF DIAGNOSIS
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
Vd5: post-cleaning charging area
during dark area attenuation
potential measurement
VL5: area of Vd5 where charges
have been removed by pre-exposure
lamp
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 The offset value is not 100 ±
50.
0001 All Vd/VL is 10 V or less.
0010 VL5 is 100V or more.
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 Vd5-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.
5-11