Not sure which OS you are running but it looks like that wireless isthe go with these machines.
EPSON PRINTER SUPPLIES & ACCESSORIES
Epson Ink Jet Cartridges – click here for list.
EpsonNet 10/100 Ethernet Print Server – $299 – order in
Allows you to put selected Epson printers onto your Ethernet network. Compatible with Epson C80/C84/760/860/880/1160 printers and Epson Photo 750/780/870/890/1200/1270/1280/2200.
Epson Bluetooth Print Adapter – $199 – order in
Allows you to print without wires via Bluetooth on selected Epson printers. Requires bluetooth on computer.
Epson 802.11b Wireless Print Server – $389 – order in
Allows you to print wireless on selected Epson printers. Requires a wireless router and wireless card on the computer.
Hope this helps some.