Gestetner B147 Service Manual page 267

Subject
Color Shift Color shift level is out of the
adjustment standard.
Color missing Color(s) is missing on the
outputs.
B147/B149/B190
Symptom
The adjustment standard on this product
is "maximum 150 µm".
The color shift level may change
depending on a type of paper used.
• 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.
Cause
Check the level of the color shifts reported from
user and follow the troubleshooting procedure
described in section 4- if necessary.
• 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.
4-65
TROUBLESHOOTING GUIDE
Action
SM