Pick-Up Fails. (Cassette Pick-Up) - Canon NP6251 Service Manual

34. Pick-up fails. (cassette pick-up)

Cause Step
1
Drive gear 2
Upper right door, 3
Lower right door
Locking spring 4
Vertical path 5
roller 0 clutch
(CL18),
Vertical path
roller 1 clutch
(CL15),
Vertical path
roller 2 clutch
(CL17),
Vertical path
roller 3 clutch
(CL11),
Vertical path
roller 4 clutch
(CL13)
Registration 6
roller,
Drive clutch
Pick-up 7
assembly
COPYRIGHT © 1997 CANON INC.
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Checks
Slide in and out the cassette. Is
the sound of the lifter falling and
the lifter motor turning heard?
Is the drive belt attached
correctly?
Are the upper right door and the
lower right door fully closed?
Are the upper right door and the
lower right door keeping the
vertical path rollers 0, 1, 2, 3, and
4 in place?
Open the upper right door and the
lower right door, and insert a
screwdriver into the door switch.
Do the vertical path rollers 0, 1, 2,
3, and 4 rotate when the Copy
Start key is pressed?
Is the leading edge of the copy
paper as far as the registration
roller assembly?
Open the upper right door and the
lower right door, and insert a
screwdriver into the door switch.
Does the feeding/separation roller
rotate when the Copy Start key is
pressed?
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
YES/NO Action
NO See "The lifter fails to
move up."
NO Attach the belt correctly.
NO Close the doors.
NO Check the spring used
for locking.
NO Check the wiring; if nor-
mal, replace the clutch.
YES See "The registration
roller fails to rotate."
YES Go to step 9.
Cont'd
11-103