Turn off the printer, and then unplug the power cord from the electrical outlet.
Using a flat‑head screwdriver, remove the controller board access cover.
Controller board electronic components are easily damaged by static electricity. Touch a metal surface on the printer before touching any components or connectors.
Unpack the optional card.
Avoid touching the connection points along the edge of the card.
Push the card firmly into place.
Note: The entire length of the connector on the card must touch and be flush against the controller board.
Warning—Potential Damage: Improper installation of the card may cause damage to the card and the controller board.
Reattach the access cover.
Connect the power cord to the electrical outlet, and then turn on the printer.
CAUTION—POTENTIAL INJURY: To avoid the risk of fire or electrical shock, connect the power cord to an appropriately rated and properly grounded electrical outlet that is near the product and easily accessible.