Samsung ML-2570 Mono Laser Printer, Laser, 600 x 1200 DPI, A4, 24 ppm Samsung ML-2570 Mono Laser Printer. Print technology: Laser. Number of print cartridges: 1. Resolution (maximum): 600 x 1200 DPI. Maximum ISO A-series paper size: A4. Print speed black (normal, A4/US Letter): 24 ppm