Samsung ML-2550 Series - Manual (Page 213)

P ROGRAMME I NSTALLING P RINTER O PTIONS F.6
Installing a Network or Serial
Interface Card
Check if there is missing parts in your package of the optional
interface card.
Review the precautions on page F.2 and then follow this
procedure to install the network or serial interface card option in
your printer.
1 Unpack the network or serial printer card. Make sure that
there is no missing or damaged part.
2 Turn the printer power off and unplug all cables from the
printer.
3 Remove the two screws on the back of the printer, then
remove the control board cover.
➐☎Network Interface Card,
SyncThru CD-ROM and
Setup Guide ➐☎Serial Interface Card