4.Be sure to set any switches and jumpers on the interface board. See the board’s manual for details. If your interface board has a jumper labelled JG, make sure that you set it to on, or the board will not work properly.
5.Slide the interface board along the slots on both sides of the interface compartment. Push it in firmly to fully insert the connector at the rear of the interface board into the printer’s internal socket.
6.Secure the interface board in the slot with the two screws included with the interface board.
Using Optional Interfaces