Sensors - Canon PIXMA MG5220 Service Manual

5-3. Sensors

No. Sensor
1 Scanner open
sensor
2 Inner cover sensor Detects opening and closing of the
3 ASF cam sensor
4 PE sensor
5 APP encoder
sensor
6 Carriage encoder
sensor
7 Temperature &
Ink amount sensor
8 Ink sensor
9 LF encoder sensor Detects rotation of the LF encoder,
10 Eject encoder
sensor
11 Valve cam sensor Detects the position of the purge
12 Pump roller sensor Detects the position of the pump
13 Purge cam sensor Detects the position of the purge
Function
Detects opening and closing of the
scanning unit (cover).
inner cover.
Detects the position of the ASF cam
(for paper feeding from the rear
tray).
Detects the leading and trailing
edges of paper.
Detects rotation of the APP
encoder, and controls paper feeding
(from the rear tray and from the
cassette) and purging operation.
Detects the position of the carriage. - Carriage position error
Detects the temperature of the
inside of the machine and the
remaining ink amount.
Detects the position of an ink tank.
and controls paper feeding.
Detects rotation of the eject
encoder, and controls paper feeding.
valve cam, and controls purging
operation.
roller, and controls purging
operation.
main cam, and controls purging
operation.
- The carriage does not move to the center even
when the scanning unit is opened.
- The inner cover is open when it should be
closed.
- The inner cover is closed when it should be
opened.
- ASF cam sensor error
- Paper feeding problem
- No paper
- Paper jam
- APP sensor error
- APP position error
- Printing shifts from the correct position.
- Uneven printing
- Strange noise
- Internal temperature error
- Low-ink or out-of-ink warning
- Wrong position of an ink tank
- Installation of multiple ink tanks of the same
color
- No recognition of an ink tank
- LF position error
- Uneven printing
- LF position error
- Uneven printing
- Valve cam sensor error
- Pump roller sensor error
- Purge cam sensor error
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Detectable problems