Bj Print Head System); Ink Tank System) - Canon BJ-W3000 Service Manual

CHAPTER 5. TROUBLESHOOTING
3. 004xx (BJ Print head system)
Problem/Unit
BJ print head instal-
lation problem
BJ print head
Flexible cable
Thermistor (TH1)
Carriage controller
Engine controller
4. 005xx (Ink tank system)
Problem/Unit
Ink tank installation
problem
Ink tank
Remaining ink sensor
(PS3)
Ink tank sensor (PS4)
Engine controller
5–34
Step Check item
1 Is the BJ print head properly
installed?
2 Is the trouble corrected by replac-
ing the BJ print head?
3 Is the trouble corrected by replac-
ing the carriage unit?
Step Check item
1 Is the ink tank installed correctly?
2 Is the trouble corrected by replac-
ing the ink tank?
3 Is the trouble corrected by replac-
ing the purge unit?
Result Remedy
NO Install the BJ print head correctly.
YES Completed.
YES Completed.
NO Check the wiring from the carriage
controller to the engine controller.
If correct, replace the engine
controller.
Result Remedy
NO Install the ink tank correctly.
YES Completed.
YES Completed.
NO Check the wiring from each sensor
of the purge unit to the engine
controller. If correct, replace the
engine controller.