Warnings; Troubleshooting By Symptom - Canon mp628 Service Manual

2-4. Warnings

Warning
Low ink
Print head temperature
rise
Protection of excess rise
of the print head
temperature
Restrictions on paper
USB cable not connected Set the PC to start scan.
Cancellation of image
select information

2-5. Troubleshooting by Symptom

Faulty operation
Message on the LCD
"!" is indicated for an applicable ink tank icon in the
Status Monitor.
If the print head temperature does not fall, the print
head error will occur.
If the print head temperature does not fall, the print
head error will occur.
The current paper cannot be set. Change the size and
type.
Reset the selected photo information?
Yes No
Do you want to clear the image scanned from the
photo?
Yes No
Do you want to clear the scanned image and rescan?
Yes No
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).
Since the ink will be used up soon, prepare for a new
ink tank.
When the print head temperature falls, the error is
automatically cleared. If the print head error is
indicated, repair servicing is required.
If the print head temperature exceeds the specified
limit, an intermission is inserted during printing.
Re-select the supported paper type and size.
Connect the USB cable, then turn on the computer.
- Select Yes, and press the OK button.
=> The image selection is cancelled, and the
LCD returns to the display before the
message was displayed.
- Select No, and press the OK button.
=> The LCD returns to the display immediately
before the message was displayed.
(1) Confirm connection of the power supply unit:
- Harness and connector conditions
(2) Replace the following item(s):
- Logic board
- Power supply unit
- Panel board
(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 FCC and panel harness):
- Harness and connector conditions
- No cable breakage, etc.
(2) Replace the following item(s):
- LCD FFC
- LCD viewer unit
- Panel board
- Logic board
(1) Examine and remove any foreign material or paper debris.
(2) Confirm the PF rear cover and the cassette conditions.
(3) Confirm cable connection.
(4) 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.
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Solution
Solution