Canon NP6251 Service Manual page 655

CHAPTER 11 TROUBLESHOOTING
7. Holding Tray Assembly (re-pick up)
Cause Step
Holding tray
separation
clutch (CL6)
Holding tray re-
pick up roller
solenoid (SL6)
Holding tray
pick-up sensor
(PS17)
Holding tray
registration
clutch (CL3)
Holding tray
registration
sensor (PS14)
Holding tray
weight solenoid
(SL7)
8. Holding Tray Assembly (overlay, re-pick up)
Cause Step
Holding tray
paper deflecting
plate
Holding tray
paper deflecting
plate solenoid
(SL8)
Holding tray
reversing clutch
(CL4)
11-124
COPYRIGHT © 1997 CANON INC.
Checks
1 Is the holding tray separation
clutch (CL6) normal?
2 Is the holding tray re-pick up tray
rotating?
3 Is the holding tray pick-up sensor
(PS17) normal?
4 Is the holding tray registration
clutch (CL3) normal?
5 Is the holding tray registration
sensor (PS14) normal?
6 Is the holding tray weight plate
operating?
Checks
1 Perform the steps under 7.
"Holding Tray." Is the problem
corrected?
2 Is there deformation or scratches
on the holding tray paper
deflecting plate?
3 Does the holding tray paper
deflecting plate operate at the
correct timing?
4 Does the roller rotation reverse at
the correct timing?
YES/NO
NO
NO
NO
NO
NO
NO
YES/NO
YES
YES
NO
NO
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Replace the clutch
(CL6).
Replace the solenoid
(SL6).
Replace the sensor
(PS17).
Replace the clutch
(CL3).
Replace the sensor
(PS14).
Replace the solenoid
(SL7).
Action
End.
Replace the paper
deflecting plate.
Replace the solenoid
(SL8).
Check the wiring from
the DC controller PCB to
the holding tray
reversing clutch (CL4); if
normal, replace the
clutch (CL4).