Canon BJC-5000 Service Manual page 145

BJC-5000
13 Right Head
Recognition
Error
14. Left Head
Recognition
Error
<Corrective Action>
The right head recognition error is not displayed in the same manner as the left head recognition error
is (see Part 3, "3.1 Error Indications" ). Check to see on which head the error occurred, then follow the
flow below to perform the corrective action of the appropriate head.
Check how the BJ
cartridge is.
Correct ?
Yes
Remove the
BJ cartridge.
Check the BJ cartridge
contact section
(cartridge and both
ends of the carriage).
Correct ?
Yes
Replace the
BJ cartridge.
Does
the same error
occur again ?
Yes
1. Replace the
carriage unit.
2. Replace the logic
board.
<Cause>
1. The BJ cartridge recognition ID error is detected.
2. The rank resistance error of the head is detected.
3. The resistance error of the head temperature
sensor is detected.
<Suspected Parts>
Is the combination of the installed cartridges appropriate?
(See the table below.)
Are the cartridges installed properly?
No
Is any ink or foreign
substance stuck to
the cartridge?
Is the contact
section deformed
or positioned
improperly?
No
Clean the
contact section.
Re-install the
BJ cartridge.
No
END
5-27
BJ cartridge, carriage unit, carriage
cable, logic board
Left BJ cartridge Right BJ cartridge
BC-23 BC-23
BC-20 (reference) BC-20
BC-21e BC-21e
BC-21e BC-23
(BC-20
BC-21e BC-22e Photo
BC-23 None
(reference)
BC-20 None
BC-21e None
Part 5: Maintenance
(reference)
as reference)