Pick-Up Fails. (Deck Pick-Up; Front Paper Deck + Cassette) - Canon NP6251 Service Manual

32. Pick-up fails. (deck pick-up; front paper deck + cassette)

Cause Step
Upper right 1
door,
Lower right
door
Lifter 2
Pick-up roller 3
Belt 4
Drive belt, 5
Gear, Coupling
DC controller 6
PCB output
Deck pick-up
clutch (CL14,
right deck;
Cl16, left deck)
COPYRIGHT © 1997 CANON INC.
Download service manual and resetter printer at http://printer1.blogspot.com
Checks
Are the upper right door and the
lower right door closed securely?
Slide out the deck from the
machine. Does the lifter move
down? Set the deck. Is the sound
of the lifter moving up heard?
Does the pick-up roller rotate?
Is the belt used to transmit drive
to the pick-up roller attached
correctly?
Is the drive from the pick-up motor
transmitted to the pick-up
assembly through the drive belt,
gear, and coupling?
Set the meter to the 30VDC
range. Does the voltage between
J116A-2/J121A-5 and GND
change from 24 to 0 V 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 Close the door securely.
NO See "The lifter fails to
move up."
YES If the roller is soiled,
clean it with alcohol. If
deformation by wear is
noted, replace it.
NO Attach the belt correctly.
NO Check the drive belt,
gear, and coupling.
NO Replace the DC
controller PCB.
YES Check the wiring up to
the clutch; if normal,
replace the clutch.
11-101