Web Config is a built-in web page of the printer for configuring the printer's settings. You can access Web Config using a computer that is connected to the same network as the printer.
To access Web Config, you need to have first assigned an IP address to the printer.
Before setting the IP address, you can open Web Config by connecting the computer and printer directly with a LAN cable and specifying the default IP address.
Since the printer uses a self-signed certificate when accessing HTTPS, a warning is displayed on the browser when you start Web Config; this does not indicate a problem and can be safely ignored.
To open the administrative page after starting Web Config, you need to log in to the printer with the administrator password.
See the related information below for more details.