Double-sided capability cuts down on paper consumption.The MF4370dn can deliver 2-sided output automatically for printing, copying and incoming faxes. This helps reduce the amount of paper you use, saving money. Easily create 2-sided copies from single-sided originals. Built-in Ethernet port for shared printing, PC faxing and scanning.The network connection (10/100Base-T) lets everyone on your computer network easily access the MF4370dn, whether printing documents, sending PC faxes or scanning. There is also a USB 2.0 port, for direct connection to a single computer. Get results fast, up to 23 ppm.Prints and copies in black-and-white at speeds up to 23 pages per minute, to cut through even big jobs quickly. Warm-up is fast, delivering the first copy in about 9 seconds. For high-quality text and grayscale images, maximum resolution is 600 x 600 dpi (1200 x 600 dpi optimized). You can reduce/enlarge copies from 50% to 200%, adjustable in 1% increments or at 5 fixed presets. Document feeder helps automate multipage jobs.The auto document feeder lets you copy or scan up to 35 sheets up to legal size (8.5" x 14") almost effortlessly. Simply load the sheets and press a button — the MF4370dn does the rest! Color scanner lets you digitize documents and images.You can convert your paper documents and images to electronic files using the color scanner. It features a 600 x 1200 optical resolution (up to 9600 x 9600 dpi enhanced), with up to 24-bit color. With the included ScansSoft Omnipage SE driver software, you can convert your printed documents to editable text files — no need to retype them! 33.6Kbps fax capabilities let you transmit and receive documents quickly.Fax documents and images as fast as 3 seconds per page. There are up 8 one-touch speed-dials and 100 coded dials, for faster access. A 250-page fax memory stores incoming faxes if you can't print them immediately. And PC fax capability lets you conveniently send faxes from your computer, for greater privacy. Compatible with Windows PCs and Macs.For Windows 2000/XP/Vista/Server 2003, Mac OS X 10.2.8 and later (for USB printing and PC faxing), and Mac OS X 10.3.9 and later (for USB scanning). Backed by the manufacturer's 1-year limited warranty. Energy Star compliant.Adheres to the EPA's Energy Star standards, to keep energy consumption and operating costs as low as possible.