Faulty Printing - Canon BJC6500 - BJC 6500 Color Inkjet Printer Service Manual

BJC-6500

3. Faulty Printing:

Blank Lines
Appear
<Measure>
Cleaning operation
Print the
Nozzle check pattern
Do print problems
appear?
Yes
Reinstall the BJ
cartridge
Faulty printing
still occur?
Yes
To next
page
<Symptoms>
Blurred prints
Blank lines
Specific dot missing
<Cause>
The BJ cartridge(s), BJ cartridge contacts, carriage
ribbon cable, purge unit, control board or carriage
board is defective.
Perform the cleaning operation 5 times.
See Part 3: 1.3.2 Nozzle check pattern printing
(page 3-6)
No
END
Reinstall the relevant BJ cartridge.
No
END
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Part 4: TROUBLESHOOTING