Epson C823642 - Enet Print Server Type B Multi Protocol 10/100BTX Administrator's Manual page 40

Note:
If you have connected more than one printer with the same type of
Ethernet card to the network, you can identify a card by pressing
the status sheet button on the Ethernet card plate to print a status
sheet for each printer. Then check the MAC address.
If the IP address is set to the default IP address, the printer model
might not appear.
Click the TCP/IP tab to display the TCP/IP menu.
4.
5. Under The way of acquiring an IP address, select one of the
following: Manual, RARP, BOOTP, or DHCP.
Note:
To use RARP, BOOTP, or DHCP, a server for each protocol is
necessary. If there is no corresponding server, do not use any of these
settings. See your network operating system documentation for the
settings.
6. Assign the IP address, the Subnet mask, and the Default gateway.
If you use DHCP to acquire an IP address, you can't assign these
items; they are assigned by the server.
3-12 Setting the IP Address