Based on the work of an HP employee to satisfy his hobby of alt processes printing. It is based upon the Z3200 Designjet (MSRP $3,400).

Links // more detail:
Portland Metro Photographic News: From Digital To Platinum, Pt 1, From Digital To Platinum, Pt 2

HP article: HP technology gives artist Elliott Erwitt a new way to print classic photographs
HP Designjet Z3200, $3,400
Large Format Photo Negative Paper Preset for the HP Designjet Z3200 printer
from youtube