Canon BJC 50 Service Manual - Page 159

Canon BJC 50 - Color Inkjet Printer Manual

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BJC-50 Part 5: Maintenance 12. Paper Feed /Delivery Error • Paper cannot be fed. More than one sheet is fed at a time. • Paper is not loaded horizontaly. Paper is not output. 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. 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 No Use printing paper that meets the specifications. Correct? Yes No Replace defective parts or eliminate paper jams. • Print unit is defective. Does the printer feed paper correctly? Yes No 1. Replace the print unit. 2. Replace the control board. • The paper end sensor is defective. Does any paper delivery error occur? Yes No END • The chassis is defective. • The delivery sensor is defective. 1. Replace the print unit. 2. Replace the control board. 5-19

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<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.
<Measure>
5-19
BJC-50
Part 5: Maintenance
12. Paper Feed
/Delivery
Error
Check the conditions for
using the printer and
printing paper
specifications.
Do they
meet the
specifications?
Inspect the inside of the
printer visually.
•
Paper jam
•
Deformed chassis, etc.
•
Missing gear teeth
Does any
paper delivery error
occur?
No
Yes
Yes
No
END
Correct?
No
Yes
Use printing paper that
meets the specifications.
Does the
printer feed paper
correctly?
No
Yes
Replace defective parts
or eliminate paper jams.
1. Replace the print unit.
2. Replace the control
board.
1. Replace the print unit.
2. Replace the control
board.
•
•
•
•
Print unit is defective.
The paper end sensor is defective.
The chassis is defective.
The delivery sensor is defective.