Duplex printer advice

[Wojciech Puchar]

>
> You won't on an HP printer, at least not an older one.  Remember
> that HP had to pay a very hefty fee to Adobe for licensing
> PostScript for each printer.  HP did everything possible to push
> PCL and discourage customers from selecting PS because they
> did not want to continue to have to pay Adobe.  HP did not

well that make sense. anyway - idon't think that implementing postscript 
processing (or any other language) in printers make sense at all.
computers are powerfull, printer could just take a bitmap and print 
it (and be cheaper).

unfortunately such implementations are usually winprinters ...