Epson Action Laser II - Manual (Page 226)

The Memory Expansion Board
1. Unplug the power cable from the printer.
2. Disconnect all interface cables from the rear of printer.
3. Remove the two brass-colored retaining screws and the memory
board cover located on the right side of the printer. Keep the
screws and the cover in a safe place.
4. Insert the optional memory board (with memory chips installed)
into the printer. Make sure the connectors fit together securely.
A-18 Options