Dell 3115cn Multifunction Color Laser Network Printer Copier Scanner Fax - Optical Resolution 600x600 DPI - Max Print Speed 31 PPM - Duty Cycle 60000 PPM - Max Sheet Size Legal - Manual Duplex - 50-sheet ADF - Ethernet, USB - 256MB RAM - CPU 400 MHz Multifunction Color Laser Network Printer, Copier, Scanner and Fax Optical Resolution 600X600 DPI