Xerox Phaser 7800DX, True 1200 x 2400 dpi. The Xerox® Phaser 7800 color printer delivers a high print resolution that consistently produces realistic images, photos and graphics, plus sharp text and fine-line detail. Seeing is believing. Impress your clients and potential customers with output that, until now, could only be achieved by outsourcing your work to a professional print shop. The Phaser 7800 produces glossy, vivid colors; rich, deep blacks; and the smoothest color transitions – no streaking, banding or striping.