Canon iP4000 - PIXMA Photo Printer, Service Manual

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2-3. Warnings
Printer (no LED indications):
*1: If the warning is displayed, the carriage does not move to the ink tank replacement position when the access cover is opened.
2-4. Troubleshooting by Symptom
Displayed warning Remarks
Low ink of 3eBK, 6C, 6M, 6Y, or 6BK (at detection
of no remaining raw ink)
Status indication only.
Print head temperature rise
If the print head temperature is high when the access cover is opened, the warning is displayed *1 .
When the print head temperature falls, the warning is released.
Protection of excess rise of the print head temperature If the print head temperature exceeds the specified limit, a Wait is inserted during printing,
Symptom Solution Remarks
Faulty operation
The power does not turn on.
The power turns off immediately after power-on.
Replace the
- AC adapter, or
- logic board ass'y *1 .
The print head is not recognized.
The print head does not move to the home position.
Remove and re-install the print head, or replace the
- print head, or
- logic board ass'y *1 .
A strange noise occurs. Remove foreign material, or attach a removed part if any.
Printing stops mid-way.
Replace the logic board ass'y *1 .
Paper feed
problems
Multiple sheets feed. Replace the
- sheet feed unit,
- cassette.
Paper does not feed. Remove foreign material, or replace the
- sheet feed unit, or
- cassette.
Paper feeds at an angle. Remove foreign material, or replace the
- sheet feed unit, or
- cassette.
Unsatisfactory
print quality
No printing, or no color ejected. Replace the
- ink tank,
- print head *2 ,
- logic board ass'y *1 , or
- purge unit.
Printing is faint, or white lines appear on printouts
even after print head cleaning.
Line(s) not included in the print data appears on
printouts.
Remove and re-install the print head, or replace the
- ink tank,
- print head *2 ,
- purge unit, or
- logic board ass'y *1 .
Paper gets smeared. Feed several sheets of paper,
perform bottom plate cleaning, or
clean the paper path with cotton swab or cloth.
A part of a line is missing on printouts. Replace the
- ink tank, or
- print head *2 .
Color hue is incorrect. Replace the
- ink tank, or
- print head *2 , or
perform print head alignment.
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