Canon PC-D320, Service Manual

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PC-D320/PC-D340/FAX-L400 Chapter 4: Maintenance and Service
4-9
4. TROUBLESHOOTING
4.1 Troubleshooting Index
Using the troubleshooting index below to investigate the cause of a 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. Page 4-11
• The error code can be checked. Page 4-15
• General errors
• The unit does not pawer on.
Page 4-26
• Abnormal display.
Page 4-26
Nothing is display.
Part of the LCD panel does not display anything.
• The keys do not work. Page 4-26
• Printing problems (Evaluation criteria: Test printing is faulty.)
• The paper is not fed correctly. Page 4-27
The main motor does not run.
The paper is not picked up from the multi-purpose tray.
The paper is not picked up from the cassette.
The paper skews.
• The printing operation is abnormal. Page 4-28
The unit indicates there is a paper jam when there is no paper jam.
• Poor printing quality. Page 4-29
Light
Dark
Completely blank
All black
Dots
Marks on back of papers
Black vertical lines
Irregular and smudged black vertical lines
Irregular and smudged black horizontal lines
Marks
Blank spots
White vertical lines
White horizontal lines
Faulty registration
Distortion/BD signal failure
Partially compressed/stretched image
Poor fixing