hp color LaserJet 2550 series (DOT4)

From HP:

hp color LaserJet 2550 series (DOT4): Enhance your documents with color when and where you want with up to 4 ppm color and 20ppm black and white performance. Plus, get results with the instant-on fuser for a fast first page out. HP Smart Printing technology allows accurate supplies monitoring and less interaction with the printer. HP’s ImageRet 2400 produces professional-looking cuments on a variety of paper types and sizes. Create more with your one and only printer.