Epson Color Laser Printer Owner's Manual page 203

If Set Using Automatic Private IP Addressing (APIPA) is
enabled, a private IP address is automatically assigned to the
print server even when there are no DHCP servers on your
system or your network.
If the Dynamic DNS function is not supported, we recommend
that you select Manual and then enter an IP address. This is
because if you select Auto, the IP address of the print server
changes every time you turn on the printer so that you need to
change the printer port setting accordingly.
5. To assign an IP address manually, enter the IP address, the
subnet mask, and the default gateway. Be sure the IP address
does not conflict with any other devices on the network.
Note:
If there is a server or a router functioning as a gateway, enter the IP
address of the server or the router for the gateway address. If there
is no gateway, leave the default values there.
6. If you want to get a private address between 169.254.1.1 and
169.254.254.254 automatically when an IP address cannot be
obtained by the DHCP server, leave it at Enable for Set Using
Automatic Private IP Addressing (APIPA); otherwise, select
Disable.
7. When setting an IP address using the ping command, select
Enable for Set Using PING. Select Disable when setting an IP
address with EpsonNet WinAssist/MacAssist/WebAssist;
this prevents any unexpected change of the IP address.
Note:
Be sure to select Disable when not using ping; this prevents an
unexpected change of the IP address by EpsonNet WebManager.
8. Select Enable for Acquire DNS Server Address Automatically
if you want to acquire the DNS server address using the
DHCP server.
EpsonNet WebAssist
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