Troubleshooting By Symptom - Canon Pixma MP560 Service Manual

2-3. Troubleshooting by Symptom

Faulty operation
Symptom
The power does not turn on.
The power turns off
immediately after power-on.
A strange noise occurs.
The LCD does not display
properly.
A portion of the LCD is not
displayed.
The display flickers.
Paper feed problems (multi-
feeding, skewed feeding, no
feeding).
Faulty scanning (no
scanning, strange noise).
15 / 64
Solution
(1) Confirm connection of the power supply
unit:
- Harness and connector conditions
(2) Replace the following item(s):
- Logic board
- Power supply unit
(1) Examine and remove any foreign
material or paper debris.
(2) Replace the following item(s):
- The part generating the strange noise
- Logic board
(1) Confirm cable connection (LCD FFC
and panel harness):
- Harness and connector conditions
- No cable breakage, etc.
(2) Replace the following item(s):
- LCD FFC
- LCD unit
- Panel board
- Logic board
(1) Examine and remove any foreign
material or paper debris.
(2) Confirm that the paper is supported and
that the paper guides are set properly.
(3) Confirm the PF rear cover and the
cassette conditions.
(4) Confirm cable connection.
(5) Replace the following item(s):
- ASF unit (for paper feeding error from
the rear tray)
- PF pick-up unit (for paper feeding error
from the cassette)
- PE sensor board
- Pressure roller unit
- Cassette unit
(1) Confirm cable connection (scanner
motor cable and CIS FFC):
- Harness and connector conditions
- No cable breakage, etc.
(2) Confirm the conditions of the inside of
the platen glass:
- FCC damper condition, etc.
(3) Replace the following item(s):
- Scanner unit