In Windows 8.1, under Device Settings, I have changed "Installable Options - Duplex Unit (for 2-Sided Printing):" to "Installed". I am able to successfully print 2-sided for a couple/few weeks. Then it stops working and I see that the option has changed back to "Not Installed".
While it is not the end of the world, it is very annoying. Anyone have any ideas on how to resolve this?
Thanks!