Lexmark T644, Laser, 2400 x 2400 DPI, A4, 48 ppm
Lexmark T644. Print technology: Laser. Duty cycle (monthly, A4): 250000 pages per month. Resolution (maximum): 2400 x 2400 DPI. Maximum ISO A-series paper size: A4. Print speed black (normal, A4/US Letter): 48 ppm