The Lexmark MS310dn Monochrome Laser Printer with internal 2-sided printing, an 800 MHz dual-core processor, 128 MB of standard memory, 300-sheet standard input and a print speed of up to 35 ppm quickly and easily performs tasks. It can easily print up to 2500 pages per month. With an input capacity of up to 850 sheets means you won't have to add paper as often.