The Printer Does Not Print - Canon BJC-55 Service Manual

Part 5: Maintenance
4. Print Defect <1>
The Printer Does
Not Print.
<Measure>
Check the conditions for
using the printer and
printing paper
specifications.
Do they
meet the
specifications?
Yes
Remove and reinstall
the BJ cartridge.
Do a test print.
Is the test
result bad?
Yes
1. Replace the ink
cartridge.
2. Replace the BJ
cartridge.
Does the
print defect
persist after
BJ cartridge
replacement?
Yes
1. Replace the print unit.
2. Replace the printer
base unit.
3. Replace the control
board.
<Symptom>
• The printer does not print at all.
• The printer does not print in the middle.
• The printer does not print one or more colors.
<Cause>
No ink, defective BJ cartridge,
defective control board, defective carriage ribbon
cable, defective purge unit
No
Use printing paper that
meet the specifications.
Do a Demonstration pattern print.
Hold down the POWER button until the beeper sounds once and
manual feed a sheet of paper. Press the RESUME button to print
out the Demonstration pattern.
No
END
No
END
• The carriage unit is defective.
• The purge unit is defective.
5-26
BJC-50