VGA screen dumps to PaintJet

[mmg]

I've got a Hewlett-Packard PaintJet and a Xenix 386 PC.
I'd like to be able to do color screen dumps from VGA screens
to the printer.  Does anyone know of any software that will
allow me to do this?  How about to other color printers/plotters?
How about black-and-white screen dumps?

Please reply by email as I don't get to read this newsgroup often.
If there are enough interesting replies, I'll summarize the responses
and post them.  Thanks in advance for your help.

- Michael Geilich