The Lexmark X644e is a versatile, convenient, and powerful machine that combines a Laser Printer, Copier, Scanner, and Fax with output speeds of up to 50 ppm. The Lexmark X644e features a large, vivid, 8 inch color touch screen that is both customizable and easy to view. Easily capture and send documents electronically with instant access to print, copy, fax and scan-to email functions from the convenient e-Task screen. The Lexmark X644e comes with standard 256MB RAM, expandable to 768MB, a fast 533 MHz processor and resolutions of up to 1200 x 1200 dpi. Enjoy better business application output with smart standard copy features and incredible paper handling options that support a wide array of media types. Whatever the task, the Lexmark X644e is a fully integrated multifunction printer that gets the job done.