cdj500 http://www.ghostscript.com/doc/gnu/7.05/Devices.htm#HP_color_inkjet gs -q -dBATCH -dPARANOIDSAFER -dQUIET -dNOPAUSE -r300x300 -sDEVICE=cdj500%A%Z -sOutputFile=- - printer/Citizen-ProJet_IIc printer/DEC-DECwriter_520ic printer/HP-DeskJet_350C printer/HP-DeskJet_400 printer/HP-DeskJet_420C printer/HP-DeskJet_500C printer/HP-DeskJet_540C printer/Olivetti-JP350S printer/Olivetti-JP470 printer/Xerox-DocuPrint_C11 "cdjcolor" mentioned in the Notes is actually the (Aladdin) cdj500 driver with a flag compiled in to force to 24 bit colour in the internal CMY map.