Using the Embedded Web Server
Open a Web browser, and then type the printer IP address in the address field.
Click Settings > Paper Menu > Custom Types.
Select a custom name you want to configure, then select a paper or specialty media type, and then click Submit.
Using the printer control panel
From the home screen, navigate to:
> Paper Menu > Custom Types
Select a custom name you want to configure, and then touch .
How to Configure 802.1X/EAP Authentication on Lexmark Wireless Devices
Here are the steps on how to configure wireless settings via the Embedded Web Server and switch from a wired to wireless connection.