Troubleshooting Index - Canon MultiPASS MP390 Service Manual

Chapter 5

5.1 Troubleshooting Index

5.1.1 Troubleshooting Index

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For troubleshooting, use the troubleshooting index below to investigate the cause of the problem and refer to
the specified page for countermeasures.
Problem
Errors shown on the display (Evaluation criteria: Look at the unit in question.)
The error message can be checked.
The error code can be checked.
General errors
The unit does not power on.
The display looks abnormal.
The keys do not work.
Printing problem
The paper is not fed properly.
The paper feed motor does not run.
The paper is not picked up from the auto sheet feeder.
The printing operation is abnormal.
Nothing is printed.
The carriage motor does not run.
Carriage error
The carriage hits against left/right stop plate, causing a noize.
Printing quality error
The printer does not print at all.
Printing stop midway.
Certain colors do not print.
Blotches appear.
Blank ink appear.
Scanning problem (Evaluation criteria: Test printing is good, but the copied image is no good.)
The scanning image is abnormal.
Nothing prints.
The image has vertical stripes.
The half-tone image contains black dots.
The color or brightness of the scanned image is not normal.
Memory card problem
Memory card error
5-1
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