Samsung ML-2251NP - Manual (Page 182)

I NSTALLING P RINTER O PTIONS E.5
E
7 Tighten the two screws.
8 Reconnect the power cord and printer cable, and turn the
printer on.
N OTE : If you are using the printer as a PostScript device, you
need to change the memory value in the printer properties as you
have installed.
Removing the Memory DIMM
1 Follow steps 1 through 3 on page E.3 to access the control
board.
2 Push the clips at each end of the connector slot away from
the DIMM.
3 Place the DIMM in its original packaging or wrap it with
paper and store it in a box.