Epson Aculaser c9100 - Page 200

200 Installing Options
4. Open cover D of the Duplex Unit. Then lift the green lever and
secure the Duplex Unit with the two screws provided.
5. Lower the lever to its original position, and close cover D of
the Duplex Unit.
6. Remove the small plastic cover on the left of the printer by
pressing the cover stopper and pulling it.