Max Speed and Max Yield let you choose between a faster print speed or a higher toner yield. Max Yield is the factory default setting.
Using the Embedded Web Server
Open a Web browser, and then type the printer IP address in the address field.
Click Settings > Print Settings > Setup Menu.
From the Printer Usage list, select Max Speed or Max Yield.
Using the printer control panel
From the home screen, navigate to:
> Settings > Print Settings > Setup Menu
Print directly from your mobile device to a supported Lexmark printer.
Print directly from your iOS device to any AirPrint‑enabled printer without needing to download or install drivers.