Epson ColorWorks C6500Au Technical Reference Manual page 153

How to Start WebConfig
Start a web browser on a computer or device that is connected via a network, and then type the printer IP
address into the browser.
Enable the JavaScript on the browser. Because the communication with the printer uses a self-signed certificate
of the printer over HTTPS, a warning message is displayed on the browser when you start WebConfig.
Communication over HTTPS
IPv4: https://IP address of the printer
IPv6: https://[IP address of the printer]
Communication over HTTP
IPv4: http://IP address of the printer
IPv6: http://[IP address of the printer]
Examples
IPv4:
https://192.0.2.111/
http://192.0.2.111/
IPv6:
https://[2001:db8::1000:1]/
http://[2001:db8::1000:1]/
Chapter3 Handling
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