Troubleshooting By Symptom - Canon PIXMA iP6600D Service Manual

2-5. Troubleshooting by Symptom

Faulty operation
Unsatisfactory print quality No printing, or no color ejected.
Symptom
The power does not turn on.
The power turns off immediately
after power-on.
A strange noise occurs.
Nothing is displayed on the LCD.
A portion of the LCD is not
displayed.
Paper feed problems (multi-
feeding, skewed feeding, no
feeding)
Carriage movement problems
(contact to other parts, strange
noise)
- Confirm the connection of
- the power cord, and
- between the logic board and the power supply
unit.
- Replace the
- AC adapter, or
- logic board ass'y
- Remove foreign material.
- Attach a removed part if any.
- Check the operation of the moving parts (such as
purge unit, carriage unit, and paper feeding
mechanism)
- Replace a faulty part, if any.
- Confirm the connection between the operation
panel and the logic board.
- Replace the
- LCD, or
- logic board ass'y
- Perform the button and LCD test in the service
mode, and confirm that the LCD is displayed
without any segments missing.
- Confirm the connection between the operation
panel and the logic board.
- Replace the
- LCD, or
- logic board ass'y
- Examine the inside to confirm that no parts are
damaged, and the rollers are clean.
- Remove foreign material.
- Adjust the paper guide properly.
- Confirm the connection of each harness and the
logic board.
- Replace the
- sheet feeder unit,
- cassette, or
- logic board ass'y
- Confirm that the timing slit strip film is free from
damage or grease.
- Clean the timing slit strip film.
- Replace the
- timing slit strip film, or
- carriage unit.
- Remove foreign material.
- Replace the
- ink tank,
*2
- print head
- logic board ass'y
- Remove foreign material from the purge unit caps,
1-11
Solution
*1
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*1
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*1
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*1
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, or
*1
.