Network-ready laser printer provides more enterprise-worthy speed, reliability and convenience. Enhance productivity and save time with two-sided printing. Experience less wait time with print speeds up to 45 pages per minute. Print your first page from the MS510DN in as little as 6.5 seconds. Effortlessly print documents containing lots of graphics and images with up to 256MB of memory and a powerful, 800MHz dual-core processor. With up to true 1200 x 1200 dpi resolution, images and graphics stay crisp. Lexmark's Unison Toner ensures consistent quality too. Keep on top of your printing jobs with a two-line display that's easy to read. You can also authenticate, authorize and audit employee usage - plus protect sensitive data using standard network security protocols. Monochrome printer also features an easy-to-read, 2.4" color LCD; integrated duplex; optional wireless connection; 100-sheet multipurpose feeder and 250-sheet input tray. Energy Star qualified.