Comment 5 for bug 778620

First of all, this is the typical behavior if a PostScript driver is used on a PCL-only printer. So at first I want to know whether in your old environment (10.10 or earlier) you were actually using a PostScript driver or whether the system chose a PCL driver automatically.

It seems that something got messed up with automatic driver selection and some printers where PostScript is only available as add-on are considered PostScript printers.