Lexmark B3442dw. Print technology: Laser. Number of print cartridges: 1, Maximum duty cycle: 80000 pages per month. Maximum resolution: 600 x 600 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 40 ppm, Duplex printing. Display: LCD. Network ready, Wi-Fi. Product colour: Black, White