Canon BJC-5000 Service Manual page 149

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BJC-5000
4.Faulty Printing
<2>: Stripes
Appear
<Corrective Actions>
Check the
environment and
paper specifications.
Do they
meet the required
specifications ?
Yes
Remove and re-install
the BJ cartridge.
Execute a test print.
Is the
printing result
defective ?
Yes
1. Replace the ink
cartridge.
2. Replace the BJ
cartridge.
Do
blotches and/or
stripes still appear on the
printed paper even
after cartridge
replacement ?
Yes
Check the carriage
cable conductivity.
Conduction
cutoff ?
Yes
Replace the
carriage unit.
<Symptom>
<Cause>
• The BJ cartridge or cartridge contacts is/are faulty.
• The carriage cable is faulty.
• The purge unit is faulty.
White stripe sample
Troubleshooting consists of error condition
diagnosis, which is required if the cause of an error
is unknown, and error recovery, which is performed
if the cause of an error is known. If the cause of
an error is unknown, perform the error condition
diagnosis, and if it is known, perform error
recovery.
No
Use paper which
meets the
specifications.
While the printer is turned on, hold down
the POWER button for one beep.
Then release the POWER button
to print out the test pattern.
No
END
No
END
No
Replace the
purge unit.
5-31
• There is blotching.
• There are white stripes on the printed paper.
• There are certain dots not printed.
Part 5: Maintenance

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