Epson TM-P20 Technical Reference Manual page 42

If you need to configure other settings, use EpsonNet Config (web version). For information about
EpsonNet Config (web version), see
Confirming the operation
Confirm that the printer is connecting to the network. There are the following methods:
 Confirm using a web browser
 Confirm using EpsonNet Config
 Confirm using the PING command from the command prompt
This section describes how to confirm using a web browser.
1
Confirm that the network is running; then start up the computer of the network.
2
Start up the web browser and input the printer's IP address in the address bar.
http://(printer's IP address)/
The "EpsonNet Config" window is displayed.
If the "EpsonNet Config" window is not displayed, connect the computer for setting to the printer
with the USB cable, then confirm the setting again.
42
"Starting EpsonNet Config (Web Version)" on page 65.