Single-function

Lexmark T644n. Print technology: Laser. Number of print cartridges: 1, Maximum duty cycle: 250000 pages per month. Maximum resolution: 1200 x 1200 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 50 ppm, Duplex printing. Display: LCD. Network ready. Product color: White