I have a Phaser 7750GX PS on Windows 7 Ultimate. I'm trying to print PDF and Publisher files in automatic duplex, but they come out very small and in the wrong orientation. I've tried resetting software, hardware, turning off and on, and reinstalling drivers. Sometimes when choosing DN it comes out in grey scale; is that a bw driver?
Also confusing as to model and driver - one info source says it's a GX and one says DN...what's the difference? I've successfully printed out many duplex and single-sided documents in the past.
Thanks for any tips, as I'm preparing for a conference and need the printer to work.