Cleaning The Laser Unit - Sharp MX-B400P Operation Manual

CLEANING THE LASER UNIT

When the laser unit inside the machine becomes dirty, line patterns may form in the printed image. Follow the steps
below to clean the laser unit.
Identifying lines (white) caused by a dirty laser unit
• White lines always appear in the same place.
• The white lines are parallel to the direction of paper feeding.
1
2
Do not point the holes down as used toner will spill out.
3
White line
Press the [POWER] key (
operation panel to turn off the panel
power, and then switch the main power
switch to the off position.
Open the front cover and remove the
toner collection container.
☞
REPLACING THE TONER COLLECTION
CONTAINER
Remove the cleaning tool for the writing
unit from the front cover.
1-69
BEFORE USING THE MACHINE
Direction of
paper feeding
(page 1-52)
) on the