Lexmark MX810
Using the Embedded Web Server
Open a Web browser, and then type the printer IP address in the address field.
Notes:
Click Settings > Paper Menu > Custom Names.
Select a custom name, and then type a custom paper type name.
Click Submit.
Click Custom Types, and then verify if the new custom paper type name has replaced the custom name.
Using the printer control panel
From the home screen, navigate to:
> Paper Menu > Custom Names
Touch Submit.
Touch Custom Types, and then verify if the new custom paper type name has replaced the custom name.