HP LaserJet Enterprise M609x. Print technology: Laser. Number of print cartridges: 1 Maximum duty cycle: 300000 pages per month. Maximum resolution: 1200 x 1200 DPI. Maximum ISO A-series paper size: A4. Print speed (black normal quality A4/US Letter): 71 ppm Duplex printing. Display: LCD. Network ready Wi-Fi. Product colour: White