- Open the PF rear cover (a).
- Release two hooks (a) using a flatblade screwdriver (b).
- Remove the retard guide (c).
- Remove the retard roller unit (a).
- Check the retard roller unit and clean or replace it if necessary.
Reattach the parts in the original position.
Install the cassette first when attaching the retard roller unit. The retard pressure release lever must be located at the machine front side from the retard roller unit to apply appropriate pressure.