This top-of-the-line fax machine is ideal for any high-volume, multi-user environment. You"ll see blazing transmission speeds as fast as 2 seconds per page. Dual 250-sheet paper trays not only help with high-volume applications, but allow you to load separate sizes for flexible printing. Its upgradeable 8MB memory is suitable for departmental use, with options available for higher-volume network environments. Password protection capability ensures that your incoming faxes remain confidential. The advanced laser engine provides professional output with every page. Print Technology: Laser; Maximum Print Speed (Black): 15 ppm.