E075 - Canon 1000 Service Manual

7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
23

E075

• Check the detail code of 'E075' using 'JAM/ERR' under 'DISPLAY' in service mode.
a. E075=0001, 0002, 0003, 0004
Cause Step
Transfer belt
edge sensor
(PS17, PS18,
PS19, PS20)
DC controller
PCB
Transfer belt
shifting motor
(M12)
DC controller
PCB
b. E075=0005, 0006, 0007, 0008
Cause Step
Transfer belt
edge sensor
(PS17, PS18,
PS19, PS20; flag
operation)
Transfer belt
edge sensor
DC controller
PCB
7-114
COPYRIGHT © 2001 CANON INC.
Checks
1 Is the sensor represented by the
detail code in question normal?
(See the instructions on how to
check photointerrupters.)
2 Operate the transfer belt shifting
motor in service mode. Is operation
noise heard?
3 Replace the motor. Is the problem
corrected?
Checks
1 Is the sensor represented by the
detail code in question normal?
(See the instructions on how to
check photointerrupters.)
2 Is the sensor normal? (See the
instructions on how to check
photointerrupters.)
Yes/No
Yes/No
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
NO Check the operation; if
normal; replace the
sensor.
YES Check the drive system
and the wiring; if normal,
replace the DC controller
PCB.
YES End.
NO Replace the DC controller
PCB.
Action
NO Check the malfunction
part, and remove the
cause.
NO Check the wiring from the
DC controller PCB to the
sensor; if normal, replace
the sensor.
YES Replace the DC controller
PCB.