The Set Control Card Message Fails To Turn Off; Jams Occur At The Fixing Assembly Inlet; The Add Paper Message Fails To Turn Off - Canon NP6251 Service Manual

50. The Set Control Card message fails to turn off.

Cause Step
CC-V 1
Control panel 2
DC controller
PCB
51. The Set Control Card message fails to turn off.
Cause Step
Control card 1
DC controller 2
PCB
CC-V

52. Jams occur at the fixing assembly inlet.

Cause Step
Coupling (fixing 1
assembly waste
toner drive
assembly)

53. The Add Paper message fails to turn off.

Cause Step
Cassette pick- 1
up assembly
COPYRIGHT © 1997 CANON INC.
Download service manual and resetter printer at http://printer1.blogspot.com
Checks
Can copies be made without
setting a control card?
Replace the control panel. Is the
message indicated?
Checks
Is the control card inserted
correctly?
Can copies be made?
Checks
Is the parallel pin groove of the
coupling chafed so that the
coupling does not move
smoothly?
Checks
Does the gear of the lifter motor or
the cassette pick-up assembly
have a missing tooth?
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
YES/NO Action
YES Check the connector of
the CC-V for a short
circuit.
YES End.
NO Replace the DC
controller PCB.
YES/NO Action
NO Replace the DC
controller PCB.
NO Replace the DC
controller PCB.
YES Replace the CC-V.
YES/NO Action
YES Apply lubricant to the
coupling contact area of
the fixing assembly
waste toner drive
assembly.
YES/NO Action
YES Using a jig, install the
lifer motor correctly. Or,
replace the lifter motor
and the cassette pick-up
assembly at the same
time.
11-115