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3-5. Special Notes on Servicing
(1) For smeared printing, uneven printing, or non-ejection of ink
When smeared printing, uneven printing, or non-ejection of ink occurs, print the nozzle check pattern to determine
whether the print head is faulty or not.
< Procedures >
1) Examine the ink tank conditions.
- Is the outer film completely removed to open the air-through?
- Re-install the ink tanks.
- Is the ink tank Canon-genuine or not?
- Is the ink tank refilled one or not?
2) Remove and clean any foreign material from the caps of the purge unit.
3) Perform print head cleaning or deep cleaning.
4) Perform print head alignment.
5) Print the nozzle check pattern. If the nozzle check pattern is not printed properly, the print head may be
faulty. Perform troubleshooting while referring to the Print Head Workshop Manual or the Print Head
Service Manual, 1-4. Troubleshooting.
Print Head Workshop Manual
Print Head Service Manual
(2) Paper feed motor adjustment
1) When attaching the motor, fasten the screws so that the belt is properly stretched (in the direction indicated
by the blue arrow in the photo below).
2) After replacement, be sure to perform printing, and confirm that no strange noise or faulty print operation
(due to dislocation of the belt or gear, or out-of-phase motor, etc.) occurs.
The screws securing the paper feed motor may be loosened only at replacement of the paper
feed motor unit. DO NOT loosen them in other cases.
Manual name
No.
QY8-9120-D0C
CD-ROM
QY8-9121-D0C
CD-ROM
55 / 66
Form
Price (JPY)
50,000
30,000
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