5 Push in on the screws while rotating them clockwise a quarter turn to lock the system board into place.Warning—Potential Damage: Make sure the system board is locked to prevent possible damage to the printer ifit is moved.Installing a fax cardNote: This task requires a #2 Phillips screwdriver and a flathead screwdriver.CAUTION—SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memorydevices sometime after setting up the printer, then turn the printer off, and unplug the power cord from thewall outlet before continuing. If you have any other devices attached to the printer, then turn them off as well,and unplug any cables going into the printer.Warning—Potential Damage: System board electronic components are easily damaged by static electricity. Touchsomething metal on the printer before touching any system board electronic components or connectors.1 Access the system board.2 Unpack the fax card.Additional printer setup47