Epson 802.11g Reference Manual page 173

If you want to add a port for a printer with its IP address
assigned automatically by the DHCP server or router, see
"Adding a port for a printer assigned with a dynamic IP
address".
If you want to add a port for a printer with its IP address
assigned manually, see "Adding a port for a printer assigned
with a static IP address".
Note:
Be sure that the computer is connected to the network and TCP/IP
is correctly set.
A valid IP address must be assigned to the printer.
Adding a port for a printer assigned with a
dynamic IP address
1. For Windows XP: Click Start and then Printers and Faxes.
Under Printer Tasks, click Add a printer to start the Add
Printer Wizard.
For Windows Server 2003: Click Start and then Printers and
Faxes. Double-click Add Printer in the Printers folder to start
the Add Printer Wizard.
For Windows 2000: Click Start, point to Settings, and then
select Printers. Double-click Add Printer in the Printers folder
to start the Add Printer Wizard.
For Windows NT 4.0: Click Start, point to Settings, and then
select Printers. Double-click the Add Printers icon.
2. Click Next.
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