Samsung CLP 550 - Manual (Page 265)

I NSTALLING P RINTER O PTIONS F.7
F
Removing the Memory
1 Follow steps 1 through 3 on page F.2 to access the control
board.
2 Push the levers at both ends of the DIMM slot away from
the DIMM.
3 Place the memory DIMM in its original packaging or wrap it
with sheet of metal as thin as paper such as aluminium foil
and store it in a box.
4 Follow from step 9 on page F.5.