Cleaning the Laser Scanner Unit
You can clean the Laser Scanner Unit. A white vertical streak may appear on the output when toner or a foreign object adheres on the dust-proof glass of the Laser Scanner Unit. This function cleans the dust-proof glass and removes any foreign objects. Execute this function three times consecutively.
Select [Maintenance]
Press [OK]
Select [Quality Maintenance]
Press [OK]
Select [Clean Laser Scanner Unit]
Press [OK]
A confirmation message appears. Press [OK] to clean the laser scanner unit.
The display returns to the [Quality Maintenance] screen.