Canon MultiPASS MP390 Service Manual page 106

Cause: Carriage motor does not work.
Solution: (1) Switch power OFF/ON.
(2) Replace the carriage motor.
Cause: The position of the carriage cannot be detected (due to smears on the carriage encoder film or the SPCNT
board failure).
Solution: (1) Switch power OFF/ON.
(2) Wipe the cariage encoder film with a cloth soaked with alcohol.
(3) Replace the carriage unit.
(4) Replace the carriage encoder film.
(5) Replace the SPCNT board.
Note:
This error message means the same as service error codes ##338 and ##340. When this error occurs in this model.
it is not treated as a service error, but as a user error, and the error message is displayed.
"CHECK PAPER SIZE"
Cause: The size of the paper loaded in the paper cassette is different from the paper size set by user data.
Solution: Load an appropriate papaer in the paper cassette. Or change the paper size settings, and then press the [Set]
key.
"CHECK PRINTER" (##334 - ##336, ##343, ##345, ##346,##352)
Cause: The printer's internal unit has malfunctioned.
Solution: (1) Remove the jammed paper. (Check the paper edge sensor is OFF.)
(2) Press the [Set] key.
(3) Reinstall the printhead.
(4) Turn the power off and on.
(5) Check the service error code and refer to an appropriate solution.
"CLEAR PAPER JAM"
Cause: There is a paper jam.
Solution: Clear the paper jam and reload paper in the multi-purpose tray. Press the [Set] key or the [Start] key.
"COLOR INK LOW"
Cause: The ink level in the color ink tank is low.
Solution: Make sure you have a new color ink tank ready to replace the used one when ink runs out. If the machine
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Chapter 5
5-5