Canon MP640 - Page 16

encoder error eject encoder signal. clean the LF / EJ slit film.
(2) Foreign material or paper debris in the paper path;
remove foreign material.
(3) Cable connection
(4) Part replacement:
- LF / EJ slit film
- LF / EJ timing sensor unit
- Platen unit
- Logic board
- Paper feed motor
19 times Ink tank position
sensor error
[6502] None of the ink tank position
is detected.
(1) Ink tank position;
confirm the ink tank position.
(2) Re-set or replacement of ink tanks
(3) Cable connection
(4) Part replacement:
- Spur unit
- Logic board
20 times Other errors [6500] An unidentified error or a
network error occurred.
(1) Part replacement:
- Logic board
- WLAN board
21 times Drive switch error [C000] Drive was not switched
properly.
(1) Foreign material or paper debris in the drive switch
area;
remove foreign material.
(2) Ink tank conditions;
confirm that the ink tanks are seated properly, or
re-set the ink tanks properly.
(3) Part replacement:
- Purge drive system unit
- ASF unit
- Carriage unit
22 times Scanner error [5011] An error occurred in the
scanner.
(1) Document pressure sheet conditions
(2) Cable connection
(3) Part replacement:
- Document pressure sheet (sponge sheet)
- Scanner unit
- Logic board
FB motor error [5012] An error occurred in the
scanner FB motor.
(1) Cable connection
(2) Part replacement:
- Scanner unit
Scanner electric
circuit error
[5050] The AFE was faulty. (1) Cable connection
(2) Part replacement:
- Scanner unit
23 times Valve cam sensor
error
[6C10] The valve cam sensor was
faulty at power-on or when
purging was attempted.
(1) Foreign material or paper debris around the purge
drive system unit;
remove foreign material.
(2) Cable connection
(3) Part replacement:
- Purge drive system unit
- Logic board
Before replacement of the logic board ass'y, check the ink absorber counter value (by service test print or
EEPROM information print). If the counter value is 7% or more, also replace the ink absorber kit when
replacing the logic board ass'y. If the counter value is less than 7%, register the current ink absorber
counter value to the replaced new logic board instead. [See 4-2. Service Mode, for details.]
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