Lexmark MS810dtn Monochrome Laser Printer with 550 Sheet Tray, Network Ready, Duplex Printing and Professional Features The Lexmark MS810dtn network-ready laser printer with internal 2-sided printing 512MB of memory and 1 200-sheet standard input has a print speed of up to 55 ppm Lexmark MS810dtn Mono Laser Printer (55 ppm) (800 MHz) (512 MB) (85" x 14") (1200 x 1200 dpi) (Max Duty Cycle 250 000 Pages) (Duplex) (USB) (Ethernet) (1 100 Sheet Input Capacity) (100 Sheet MPT) Mono Laser