9
Install an optional duplex unit
3 Insert the two tabs on the top
edge of the duplex unit into the
holes in the back of the printer.
4 Lower the duplex unit into place.
Make sure the connector near the
bottom of the duplex unit connects
properly with the printer.
5 Open the duplex unit upper cover.
6 Tighten the attached screw in the
center of the duplex unit.
7 Close the cover.
Screw