Lexmark MX431
Fax Mode
Select a fax mode.
Note: Depending on your printer model, the factory default setting may vary.
Missing fax server mode in fax settings with 2.8” panel size for Lexmark CX331, CX431, MC3224, MC3326, MC3426, MX331, MX431, MB2236, and MB3442
Configure the printer for you to send and receive fax messages using the fax server.