Lexmark C77x - Manual (Page 75)

Installing a firmware card
75
Installing and removing options
Installing a firmware card
Note: Firmware cards designed for other Lexmark printers will not work with the printer.
1 Remove the system board access cover. (See Accessing the printer system board.)
Note: If a firmware card has been installed, you must remove it.
2 Unpack the firmware card.
3 Holding the card by its sides, align the pins on the card with the holes on the system board.
4 Push the firmware card firmly into place.
The entire length of the connector on the firmware card must touch the system board and be locked into the
connector.
Be careful not to damage the connectors.
Pins