Brother PPF4750E IntelliFax 4750e High-Performance Business-Class Laser Fax If you upgrade from Windows 7 or Windows 8.1 to Windows 10, some features of the installed drivers and software may not work correctly. Please uninstall all drivers and software in Windows 7 or Windows 8.1 before upgrading to Windows 10; Features 33.6K fax modem and 600-page/8MB fax memory Up to 232 auto-dial locations, broadcasting to up to 282 locations Large 250-sheet paper tray and 50-sheet ADF Maximum Copy Resolution: Up to 600 dpi class