Canon BJC6500 Service Manual - Page 77

Paper Feed, Error/Paper, Jam Error

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BJC-6500 Part 4: TROUBLESHOOTING 9. Paper Feed Error/Paper Jam Error Paper feed operation fails to feed paper. Paper eject operation fails to eject paper. Paper feed section, paper end sensor, control board Visually check the paper Check for paper jams, gear deformation/damage/missing teeth. feed unit Is the paper selector lever's position correct? No OK? Yes Switch on with the cover open Part 2: 2.2.2 Paper type/settings (See page 1-4) Repair or replace faulty parts Check the operation of paper feed unit Check the paper feed motor, pick-up roller, paper feed roller, and eject roller for movement during initialization. Check for noise. Check the paper feed motor for out-of-step. OK? Yes No Repair or replace faulty parts Repair or replace faulty parts. Replace the control board Paper feed check Check that the pick-up roller rotates and the ASF feeds paper normally. OK? Yes No Check the ASF unit Check the pick-up roller's rubber rings and the separation sheet for cleanliness, wear, or degradation. Check the rod cam for engagement. Check the gears for deformation, damage, and phase. To next page TROUBLE SHOOTING 4-13

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<Cause>
Paper feed operation fails to feed paper.
Paper eject operation fails to eject paper.
<Suspected parts>
Paper feed section, paper end sensor,
control board
<Measure>
4-13
BJC-6500
Part 4: TROUBLESHOOTING
TROUBLE
SHOOTING
Visually check the paper
feed unit
To next
page
Check for paper jams, gear deformation/damage/missing teeth.
Is the paper selector lever's position correct?
Check the pick-up roller's rubber
rings and the separation sheet for
cleanliness, wear, or degradation.
Check the rod cam for engagement.
Check the gears for deformation,
damage, and phase.
Switch on with the
cover open
Paper feed check
Check that the pick-up roller rotates and the ASF feeds paper
normally.
Check the ASF unit
Replace the control board
Check the operation of
paper feed unit
Check the paper feed motor, pick-up roller, paper feed roller,
eject roller for movement during initialization. Check for noise.
Check the paper feed motor for out-of-step.
OK?
Yes
No
OK?
Yes
No
OK?
Yes
No
Part 2: 2.2.2 Paper type/settings
(See page 1-4)
Repair or replace faulty parts.
Repair or replace
faulty parts
Repair or replace
faulty parts
and
9. Paper Feed
Error/Paper
Jam Error