CAUTION—SHOCK HAZARD: If you are accessing the controller board or installing optional hardware or memory devices sometime after setting up the printer, then turn the printer off, and unplug the power cord from the electrical 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.
Note: This task requires a flat‑head screwdriver.
At the back of the printer, turn the screws counterclockwise to remove them.
Slightly open the controller board access cover, and then shift to the right to remove it.
Locate the appropriate connector on the controller board.
Warning—Potential Damage: Controller board electronic components are easily damaged by static electricity. Touch a metal surface on the printer before touching any controller board electronic components or connectors.
Flash memory or font card connector
Printer hard disk connector
Memory card connector
Reattach the cover.
Turn the screws clockwise to lock the cover.