How to Override an Empty Cartridge Warning on a Lexmark

1. Press 'Menu # 1 9 3 4' in succession, as if dialing a phone number. The operator panel should now display 'Tech.'
2. Press 'Menu' and then press 'Select.' The operator panel will display '10. Tech Mode.'
3. Press the left arrow button once. The operator panel will display 'New Cartridge.' Press 'Select.' The operator panel will display 'Yes.'
4. Press 'Select.' The toner warning message should now be gone.
5. Exit 'Tech Mode' by pressing 'Menu # 1 9 3 4' as in step 1. The operator panel should no longer display 'Tech.'