3.Slide the interface card along the slots on both sides of the interface compartment. Firmly push in the card to make sure the connector at the back of the interface card is fully inserted into the printer’s internal socket. Then replace the screws and tighten them.
Note:
Store the shield plate in a safe place; you will need to reattach it if you remove the interface card later.
To remove the interface card, perform the procedure above in reverse order.