Troubleshooting Flowchart - Canon iP4300 Simplified Service Manual

7. TROUBLESHOOTING FLOWCHART

7-1. Printer Main Unit Troubleshooting Flowchart (how to confirm printer operation at
refurbishment)
Power ON in the
service mode
Service Call
Error?
No
Open access cover,
and install print head
Service Call
Error?
No
Service test print
Correct?
Yes
Ink absorber
counter less than
7%?
Yes
Initialize EEPROM
Power OFF
Normal
Follow the refurbishment completion
*1
procedures (power-on and -off) to return
the printer to the default shipment settings.
Refer to 5. SERVICE MODE
for printing method.
Yes
Yes
Refer to 5. SERVICE MODE
for printing method.
No
Replace print head and
perform service test print
Correct?
Yes
No
<Service test print check items>
(Refer to the attached print sample.)
1. Non-ejection of ink: Yes
2. Top of form:
3. Straight line:
4. Halftone:
No
Defective
23
Off the paper
Not connected
Lines / uneven density
NG
NG
NG
NG