Lexm MX431ADW Laser Get output up to 40 pages per minute, plus double-side automatic scanning, copying, faxing, touch-screen convenience and Wi-Fi, all in the compact Lexmark MX431adw. Specifications Colour: Mono Pages per Minute (A4): 40 Paper size: A4 Duplex Print: Yes WIFI: Yes Multi Function: Yes Auto Doc Feeder: Yes Print Technology: Laser Duplex Scan: Yes