Lexmark MS812dn / MS812dtn
Open the printers folder.
Select the printer you want to update, and then do the following:
Navigate to the Configuration tab, and then select Update Now ‑ Ask Printer.
Apply the changes.
From System Preferences in the Apple menu, navigate to your printer, and then select Options & Supplies.
Navigate to the list of hardware options, and then add any installed options.
Learn the tips on how to save paper and toner.
Are you having trouble printing private, secure, and confidential documents that are held in the print queue? Follow these steps to solve this problem.