The Xerox WorkCentre 3220 specifications states that this printer is a PostScript compatible printer.
When a document with embedded scalable line-art .eps file was tested on this printer, it did not print at the printer's resolution at 600/1200 dpi with smooth gradients. However, it printed half-tone dots.
Unless buyer is willing to accept this printer's other features, this is definitely a good printer. But if you want graphics, publishing, postscript, do your own test before buying.