Delivery Vertical Path, Duplexing Reversing Assembly, And Holding Tray Front Feeding Assembly - Canon 1000 Service Manual

7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
6 Delivery Vertical Path, Duplexing Reversing Assembly, and Holding
Tray Front Feeding Assembly
Cause Step
Delivery paper
deflecting
plate
Delivery
vertical path
roller
Vertical path 1
sensor,
Vertical path 2
sensor
Inlet roller
Feeding roller,
Outlet roller
Duplexing unit
reversal
sensor
Feeding drive
assembly
Duplexing
paper deflect-
ing plate
Holding tray
front feeding
sensor 1, 2
7-146
COPYRIGHT © 2001 CANON INC.
Checks
1 Does the delivery paper deflecting
plate operate normally?
2 Does the delivery vertical path roller
operate normally?
3 Does each sensor operate normally?
4 Does the inlet roller operate nor-
mally?
5 Does the feeding/outlet roller operate
normally?
6 Does the duplexing unit reversal
sensor operate normally?
7 Does the feeding assembly operate
normally?
8 Is the duplexing paper deflecting
plate operating normally?
9 Does the holding tray front feeding
sensor (PS8, PS9) operate normally?
Yes/No
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
NO Check the delivery paper
deflecting solenoid
(SL14).
NO Check the waste toner
feeding motor drive
assembly; if normal,
check the reversal drive
clutch (CL16).
NO Check the lever and the
wiring; if normal, replace
the sensor.
NO Check the duplexing unit
reversing motor drive
assembly.
NO Check the waste toner
feeding motor drive
assembly; if normal,
check the reversal drive
clutch (CL16).
NO Check the lever and the
wiring; if normal, replace
the sensor.
NO Check the duplexing
feeding motor drive
assembly.
NO Check the duplexing
paper deflecting plate
solenoid (SL11).
YES Check the guide plates
and the duplexing unit
feeding assembly for
foreign matter and defor-
mation.
Check the lever and the
NO
wiring; if normal, replace
the sensor.