Epson Action Laser II - Manual (Page 225)

The Memory Expansion Board
CAUTION: Be careful not to scratch the chip or the board
when removing the chip.
6. With the chip properly inserted, push down firmly on both ends
of the chip to make sure it is well-seated.
7. Repeat steps 3 through 6 for each of the three remaining chips.
Installing the board
To install the memory expansion board, you need a cross-head
screwdriver.
WARNING: Do not remove any screws other than the
brass-colored screws specified in the following steps.
CAUTION: Do not attempt to install the memory board
unless the printer is turned off and the power cord is
unplugged. Also, try not to touch any contacts on the
circuit board of the printer; many of the components can
be destroyed by the static electricity in your body.
Options A-17