Oki C8800 - Manual (Page 154)

Installing upgrades > 154
9. Identify the RAM expansion slot (1) in the printer.
10. If the RAM expansion slot already contains a memory
upgrade board, that board will have to be removed before
you can install the new one. To remove it, proceed as
follows, otherwise skip to step 11.
(a) Grip the board firmly by its short edges and pull it
out of the slot.
(b) Place the removed memory board in the antistatic
bag which originally contained the new memory
board.
11. Hold the new memory board by its short edges, so that
the edge connector faces towards the RAM expansion slot.
12. Gently push the board into the RAM expansion slot until it
latches in and will not go any further.Press down on the
module toward the PCB.