17 January, 2003 TROUBLESHOOTING GUIDE
4-49
Subject Symptom Cause Action
Color Shift Color shift level is out of the
adjustment standard.
The adjustment standard on this product
is “maximum 180 µm”.
The color shift level may change
depending on a type of paper used.
Check the level of the color shifts reported from
user and follow the troubleshooting procedure
described in section 4- if necessary.
Color missing Color(s) is missing on the
outputs.
• The position of 3rd mirror moves due
to the rough transportation of service
part; and then, becomes out of
position.
• Flat cable(s) is not properly
connected to the BCU board.
• When replacing the laser optic housing unit
due to any reason, make a color demo page in
the UP mode. If color(s) is missing, open the
unit and reposition the mirror(s).
• Reconnect the flat cable(s) firmly.
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