I have been using my MF4350d for years. Once before I had this problem and got it resolved. Now it is back. I am using a MacBook Pro running OS 12.3.1 and all of a sudden it started printing double-sided. I have updated the printer driver but that di...
Hello Hector,Thank you for your reply. I knew that I needed to uncheck the box for two-sided printing but was unable to find it. Several tips for others who may have run into the same problem. 1. You need to have a multi-page document open in order t...