Canon CLC 1120 Service Manual page 872

Code
E071
E072
COPYRIGHT © 1999 CANON INC.
Cause
· The side A sensor (PS2) is faulty.
· The side B sensor (PS3) is faulty.
· The C sensor (PS4) is faulty.
· The signal plate is faulty.
· The drum motor drive system is
subjected to an overload.
· The transfer drum is not locked
properly.
· The DC driver PCB is faulty.
· The CPU PCB is faulty.
· The transfer drum cleaner brush
motor (M8) is faulty.
· The polishing roller motor (M9) is
faulty.
· The motor drive system is
subjected to an overload.
· The attraction/transfer locking cam
motor (PM7) is faulty.
· The attraction/transfer locking cam
HP sensor (PS8) is faulty.
· The registration path driver PCB is
faulty.
· The DC driver PCB is faulty.
· The CPU PCB is faulty.
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Timing of detection
1207 The rising edge signal of the
signal plate D to be detected
by the C sensor is generated
0.3 sec later after the rising
edge signal of the signal plate
detected by the side A sensor
has been detected.
1208 The rising edge signal of the
signal plate to be detected by
the C sensor is generated 0.3
sec later after the falling edge
signal of the signal plate
detected by the side A sensor
has been generated.
0002 The motor lock signal
(TRCMLK) is '0' for 1 sec or
more while the transfer drum
cleaner brush motor is
rotating.
0003 An overcurrent is detected for
1 sec or more while the
polishing roller motor is
rotating.
0202 The attraction/transfer looking
cam HP sensor does not go '1'
within 4 sec after the
attraction/transfer locking cam
motor has started to rotate.
13-345