So which is it ? Dozens or a few types ? :-)
It's not rocket science, but you still haven't provided any device specifics.
I want to see the device I can simply send raw PDF, TIFF, JPG, TXT and PRN files to and have them magically render without a print driver as you are suggesting.
This mailing list archive is Copyright 1997-2015 by MIDRANGE dot COM and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available here. If you have questions about this, please contact