Spotted Toner Prevention
You can specify whether to prevent spots of toner.
Press the [Menu] key.

Select [Maintenance], and then press the [OK] key.
Select [Quality Maintenance], and then press the [OK] key.
Select [Spotted Toner Prevention], and then press the [OK] key.
Select [Mode 1], [Mode 2], [Mode 3], or [Off], and then press the [OK] key.
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If the item you want to select is not displayed on the screen, press the [
] or [
] key on the control panel to change the screen.