Lexmark Optra 1200 Setup Manual page 45

2
If the rear output bin is attached to the back of the
printer, lift it straight up and remove it from the
printer.
3
Disconnect all cables from the back of the printer.
If you installed an optional drawer, you do not need
to unplug the option cable.
4
Loosen the six thumbscrews on the system board
faceplate at the back of the printer.
Install memory and network options
39