Paper Feed - Canon BJC-55 Service Manual

BJC-50

12. Paper Feed

/Delivery
Error
<Measure>
Check the conditions for
using the printer and
printing paper
specifications.
Do they
meet the
specifications?
Yes
Inspect the inside of the
printer visually.
• Paper jam
• Deformed chassis, etc.
• Missing gear teeth
Correct?
Yes
Does the
printer feed paper
correctly?
Yes
Does any
paper delivery error
occur?
Yes
1. Replace the print unit.
2. Replace the control
board.
<Symptom>
• Paper cannot be fed. More than one sheet is fed
at a time.
• Paper is not loaded horizontaly. Paper is not
output.
<Cause>
The paper end sensor is defective.
The paper feed roller does not work correctly.
The paper delivery roller does not work correctly.
Paper jam.
The paper delivery sensor is defective.
No
Use printing paper that
meets the specifications.
No
Replace defective parts
or eliminate paper jams.
No
1. Replace the print unit.
2. Replace the control
board.
No
END
• The chassis is defective.
• The delivery sensor is defective.
5-19
Part 5: Maintenance
• Print unit is defective.
• The paper end sensor is defective.