Samsung ML--6100 - Manual (Page 86)

6. 3 Printer Options
3. Remove one screw and remove the metal plate in the direction of the
arrow.
4. Remove the PostScript SIMM(the first slot on the left as shown) and
the memory SIMM(the second slot on the right as shown) on the
control board.
OPEN
CLOSE
PS 2 DRAM
➀ ➁
1. Remove Post Script SIMM 2. Remove Memory SIMM