HP Business Inkjet 2250 1200 600 4 cartridges: one for each color of CMYK. Also 4 replaceable printheads. http://www.hp.com/go/businessinkjet us-ascii MLC,PML,PJL,PCL5,POSTSCRIPT Hewlett-Packard Business Inkjet 2250 HEWLETT-PACKARD HP BUSINESS INKJET 2250 A Postscript When used with HP's "hpijs" driver, this printer does the dithering and color adjustment internally. As input it takes simple RGB data as used for screen display.<p> Note that in contrary to most other current HP inkjet printers there is no paper type sensor in the printer. You have to choose one of the photo modes manually when using photo paper. There are photo modes with 300 and 600 dpi.<p>