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1-70
BEFORE USING THE MACHINE
Contents
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 white lines 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.
• White lines appear not only on copies but also on print jobs from a computer. (The same lines appear on both copies and
print jobs.)
White line
Direction of
paper feeding
1
‘
Press the [POWER] key ( ) on the
operation panel to turn off the panel
power, and then switch the main power
switch to the off position.
2
Open the front cover and remove the
toner collection container.
☞
REPLACING THE TONER COLLECTION
CONTAINER (page 1-55)
3
Remove the cleaning tool for the writing
unit from the front cover.
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