Cleaning The Laser Unit - Sharp MX-C381 Maintenance & Safety Manual

REPLACING SUPPLIES AND MAINTENANCE

Cleaning the laser unit

When the laser unit inside the machine becomes dirty, line patterns (coloured
lines) may form in the printed image. Follow the steps below to clean the laser
unit.
Identifying lines (coloured lines) caused by a dirty laser unit
• Coloured lines always appear in the same place. (The lines are never black.)
• The coloured lines are parallel to the direction of paper feeding.
• Coloured lines appear not only on copies but also on print jobs from a
computer. (The same lines appear on both copies and print jobs.)
Press the [POWER] key (
to turn off the panel power, and then switch the
main power switch to the off position.
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Coloured line
Direction of
paper feeding
) on the operation panel