Troubleshooting By Symptom - Canon PIXUS iP8600 Service Manual

2-4. Troubleshooting by Symptom

The power does not turn on.
The power turns off immediately after power-on.
Faulty operation
A strange noise occurs.
Printing stops mid-way.
Multiple sheets feed.
Paper does not feed.
Paper feed
problems
Paper feeds at an angle.
No printing, or no color ejected.
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.
Paper gets smeared.
A part of a line is missing on printouts.
Color hue is incorrect.
Unsatisfactory
print quality
Printing is incorrect.
No ejection of black ink.
Graphic or text is enlarged on printouts.
*1: Before replacement of the logic board ass'y, check the waste ink amount (by service test print or EEPROM information print). If the waste ink amount is 7%
or more, also replace the bottom case unit (QM2-1583) or the ink absorbers (QC1-5381 / 5382 / 5383 / 5384 / 5385 / 5386 / 5387 / 5388 / 5389 / 5390)
when replacing the logic board ass'y.
[See Section 3-3. Adjustment / Settings, (6) Service mode, for details.]
*2: Replace the print head only after the print head deep cleaning is performed 2 times, and when the problem persists.
Symptom
Replace the
Remove foreign material, or attach a removed part if
any.
Replace the logic board ass'y
Replace the
Remove foreign material, or replace the
Remove foreign material, or replace the
Replace the
Remove and re-install the print head, or replace the
Feed several sheets of paper,
perform bottom plate cleaning, or
clean the paper path with cotton swab or cloth.
Replace the
Replace the
perform print head alignment.
Replace the logic board ass'y
Replace the
When enlarged in the carriage movement direction,
clean grease or oil off the timing slit strip film, or
replace the
When enlarged in the paper feed direction, clean
grease or oil off the timing slit disk film, or replace the
<Part 1: 2. LIST OF ERROR DISPLAY / INDICATION>
Solution
- AC adapter, or
- logic board ass'y *1 .
*1 .
- sheet feed unit,
- cassette.
- sheet feed unit, or
- cassette.
- sheet feed unit, or
- cassette.
- ink tank,
- print head *2 ,
- logic board ass'y *1 , or
- purge unit.
- ink tank,
- print head ,
*2
- purge unit, or
- logic board ass'y *1 .
- ink tank, or
- print head *2 .
- ink tank, or
- print head *2 , or
*1 .
- ink tank, or
- print head *2 .
- timing slit strip film,
- carriage unit, or
- logic board ass'y *1 .
- timing slit disk film,
- timing sensor unit, or
- logic board ass'y *1 .
1 - 5
Remarks
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