Lower Feeding Assembly - Canon NP6330 Service Manual

5

Lower feeding assembly

Cause Step
Lower feeder
inlet roller
Set-back roller
1/2
Lower feeder
motor (M7)
Lower feeder
outlet roller
Lower feeder
flapper solenoid
(SL6)
Lower feeder
inlet paper
sensor (PS12)
Lower feeder
outlet paper
sensor (PS13)
Guide plate
DC controller
PCB
COPYRIGHT © 1997 CANON INC.
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Checks
1 Is the lower feeder inlet roller
deformed or worn?
2 Is the set-back roller 1/2 deformed
or worn?
3 Are the lower feeder inlet roller
and the set-back roller 1/2 rotating
smoothly?
4 Is the lower feeder outlet roller
deformed or worm?
5 Is the lower feeder flapper
operating during re-pick up?
6 Is the lower feeder inlet paper
sensor normal? (See the
instructions on how to check
photointerrupters.)
7 Is the lower feeder outlet paper
sensor normal?
(See the instructions on how to
check photointerrupters.)
8 Is the lower feeder guide plate
deformed?
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
YES/NO Action
YES Replace the lower feeder
inlet roller.
YES Replace the set-back
roller 1/2.
NO Check the lower feeder
inlet roller drive assem-
bly and the set-back
roller drive assembly; if
normal, replace the
lower feeder motor.
YES Replace the lower feeder
outlet roller.
NO Check the wiring; if
normal, replace the
solenoid.
NO Check the wiring; if nor-
mal, replace the sensor.
NO Check the wiring; if nor-
mal, replace the sensor.
YES Replace the lower
feeding assembly.
NO Replace the DC
controller PCB.
11-111