Open a web browser, and then type the printer IP address in the address field.
Click Settings > Device > Notifications.
From the Supplies menu, click Custom Supply Notifications.
Select a notification for each supply item.
Apply the changes.
Manually assign a specific paper size that is not available in the paper menu.
Remove any non-Lexmark supply from your printer to avoid damage. Installing non‑Lexmark supplies may void the printer warranty.