When using synthetic paper, clean the roller to prevent smears from appearing on the back side of the paper when the transport rollers in the following locations become dirty.
Cleaning procedure
Use the cleaning cloth provided with the machine or an equivalent item to wipe the component. If stains do not come off easily, use a cloth moistened with a small amount of alcohol.
Duplex transfer unit
Open the left front cover of the main unit.
Lower the F4 lever.
Wipe the transport roller on the bottom side of the duplex transfer unit.
There are eight rollers on the upper side of the gap above the F4 lever.
Close all covers after cleaning the unit.