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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 (colored lines) may form in the printed image. Follow
the steps below to clean the laser unit.
Identifying lines (colored lines) caused by a dirty laser unit
• Colored lines always appear in the same place. (The lines are never black.)
• The colored lines are parallel to the direction of paper feeding.
• Colored lines appear not only on copies but also on print jobs from a computer. (The same lines appear on both copies and
print jobs.)
Colored 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 1-50)
3
Remove the cleaning tool for the writing
unit from the front cover.
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