Try old DataCard printers (Score 3, Informative)

I know (from experience) that the old DataCard printers (ImageCard I/II+/III series) use PostScript. The drivers are, of course, Windows-only... but I suspect with a little work they could be made to work with ghostscript or something like that. Really out of my league though, printing is never something I've tried under Linux.

If you do go looking for DataCard printers, the best source is to scan eBay periodically -- the dealers which specialize in older printers will charge an arm, leg, and probably a few other things as well. Stay far away from them, and stick to auctions and such.

Hope this helps you out!