Lexmark MX331adn - Monochrome Laser - Duplex (2-sided) Printing: Integrated Duplex - Print Speed: Up to 40 ppm - Recommended Monthly Page Volume: 500 - 5000 pages. Get output up to 40 pages per minute, plus single-side automatic scanning, copying, faxing and touch-screen convenience, all in the compact Lexmark MX331adn.
