Canon CLC 1120 Service Manual page 685

CHAPTER 13 TROUBLESHOOTING
6 Delivery Vertical Path/Duplexing Feeding Assembly
Cause
Delivery paper
deflecting plate
Delivery vertical
path roller 1/2/3
External delivery
sensor
Delivery vertical
path 1 sensor
Delivery vertical
path 2 sensor
Duplexing
feeding drive
assembly
Duplexing
feeding assembly
sensor
Paper guide plate
13-158
Step Checks
1 Is the delivery paper deflecting
plate operating normally?
2 Is the delivery vertical path roller
operating normally?
3 Is each sensor (PS31, PS32, PS33)
operating normally?
4 Is the duplexing feeding assembly
operating normally?
5 Is the sensor (PS34, PS37) of the
duplexing feeding assembly
operating normally?
COPYRIGHT © 1999 CANON INC. CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Yes/No Action
NO Check the delivery paper
deflecting plate solenoid
(SL10).
NO Check the fixing motor
and the duplexing motor
driver assembly; if
normal, replace the
delivery vertical path
clutch (CL19).
NO Check the sensor lever
and wiring; if normal,
replace the sensor.
NO Check the duplexing
motor drive assembly.
NO Check the sensor lever
and wiring; if normal,
replace the sensor.
YES Check each paper guide
plate and the duplexing
feeding assembly or
foreign matter and
deformation.