Konica Minolta bizhub PRO 950 - Manual (Page 124)

Windows Printing
bizhub PRO 950 Printer Driver 6-60
PostScript Language Level: determines the PS language level to use,
from 1 to n (where “n” is the highest level the printer can handle).
Increasing numbers in level mean more features to select from. Sometimes
it’s useful to reduce the language level to achieve a better compatibility to
documents of unknown processing history.
Send PostScript Error Handler: determines if a PS error message is sent.
If the printer shall print an error message on failed jobs, click [Yes].
Mirrored Output: determines if the printed document is output flipped
left/right.
Negative Output: determines if the printed document is output inversed,
i.e. white characters on black paper. This option is only available for
monochrome printers.