Canon imageRUNNER 330 Service Manual page 503

CHAPTER 14 TROUBLESHOOTING
1 Pick-Up Assembly
Cause Step
1
Cassette 2
3
Paper 4
5
DC controller 6
PCB, Pick-up
clutch
Pick-up roller 7
Separation roller 8
Torque limiter
Feeding roller 9
Pick-up sensor 10
11
Registration roller 12
drive assembly
Registration roller 13
vertical path roller
Paper 14
Pick-up roller
14-104
COPYRIGHT © 1999 CANON INC.
Check
Was the source of paper a cassette?
Is the cassette set in the machine
correctly? Is the dial set correctly?
Try a different cassette. Is the
problem corrected?
Is the paper curled or wavy?
Try paper of a type recommended
by Canon. Is the problem
corrected?
Does the pick-up roller of the
selected cassette holder rotate
during copying operation?
Is the pick-up roller deformed or
worn?
Is the separation roller of each
cassette holder deformed or worn?
Is the feeding roller of each
cassette holder deformed or worn?
Is the operation of the pick-up
sensor of each cassette normal?
(See the instructions on how to
check photointerrupers.)
Does the multifeeder pick-up roller
start to rotate when manual feeding
is performed?
Does the registration roller operate
normally?
Clean the registration roller and the
vertical path roller. Is the problem
corrected?
Try paper of a type recommended
by Canon. Is the problem
corrected?
CANON imageRUNNER 400/330 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Yes/No Action
NO Go to step 10.
NO Correct the setting.
Check the inside of the
cassette for foreign
matter.
YES Replace the paper.
Instruct the user on the
correct method of
storing paper.
YES Advise the user to use
recommended paper.
NO See "Pick-up operation
fails."
YES Replace the pick-up
roller.
YES Replace the deformed or
worn separation roller.
NO Replace the torque
limiter.
YES Replace the deformed or
worn feeding roller.
NO Check the wiring; if
normal, replace the
sensor.
NO See "Pick-up operation
(from the multifeeder)
fails."
NO See "The registration
roller fails to rotate."
NO Clean the roller; if the
problem is not corrected,
replace the deformed/
worn roller.
YES Advise the user to use
recommended paper.
NO Check the pick-up roller
for wear and
deformation.