🚀 go-pugleaf

	Last week I asked whether or not it was possible to query a PS
printer to find out if it had color capabilities.  The only responses I
received mentioned that I should check if systemdict /colorimage is known.
Unfortunately, this does not work.  If it did the following program would
work:

%!
200 200 moveto
/Helvetica findfont 20 scalefont setfont
systemdict /colorimage known {
	(This is a color printer) show
} {
	(This is not a color printer) show
} ifelse
showpage

This program prints `This is a color printer' no matter what printer I
print it on (color or not color).  Someone mentioned that I redefine
/colorimage, but this will not solve my problem, nor will it produce the
correct output in the program above.  I find it hard to believe that PS
does not have a built-in set of commands that can be used to find out if
the printer being printed on is a color printer or not.

Michael Arras                      Bavarian Research Center
arras@forwiss.uni-erlangen.de      for Knowledge-Based
Artificial Neural Network and      Systems_________________
Fuzzy Logic Research Group         FORWISS   ERLANGEN * MUNICH * PASSAU