Lexmark MS421
Open a web browser, and then type the printer IP address in the address field.
Notes:
Click Settings > Device > Notifications.
From the Supplies menu, click Custom Supply Notifications.
Select a notification for each supply item.
Apply the changes.
Set the paper size to universal when the size that you want is not available from the Paper menu.
Learn how to configure the printer power-saving options to reduce power consumption.