Client has a HP LaserJet P4015dn and he recently installed accessories. At this point the printer has five trays and the envelope feeder installed. It's connected over the network.
The HP Universal Print Driver doesn't recognize the envelope feeder or Tray 5. I see some scattered complaints about this on the interwebs but I can't find a solution.
I tried rolling back to the Vista driver (x64), as this is a Win7 x64 machine, no joy. Anybody find a solution to this?