REPLACING SUPPLIES AND MAINTENANCE

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.

Direction of paper feeding

Colored line

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.)

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.

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