Ghostscript can be used to provide Transparent PostScript printing with PrintMon.
Driver for HP DeskJet 850
This is not part of the standard distribution.
Information about this driver is available from
http://www.erdw.ethz.ch/~bonk/bonk.html.
The sources are available from
http://www.erdw.ethz.ch/~bonk/software.html
Send bug reports for this driver to
uli@erdw.ethz.ch
A precompiled OS/2 EXE is containing this driver is available
from
http://www.erdw.ethz.ch/~bonk/software.html