Xerox Phaser 6510DN. Print technology: LED, Colour. Number of print cartridges: 4, Maximum duty cycle: 50000 pages per month. Maximum resolution: 1200 x 2400 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 28 ppm, Duplex printing. Network ready. Product colour: White