To help control costs, the MB451w MFP comes with duplex (2-sided) printing/copying standard, so you can save paper and energy. And, for ongoing savings, the 2-piece consumables configuration lets you replace just a toner cartridge when you need to, instead of the toner cartridge and the image drum. Sharing files and documents is a snap – Place your document on the flatbed platen or in the 50-sheet reversing duplex automatic document feeder (RADF) and scan it in color or black & white. Save and send the electronic version to a folder on your PC, the network or FTP site, as an attachment to an e-mail address, or as a fax. The MB451w offers robust fax features, including Internet (T.37) faxing, one-touch dialing, distinctive ring and broadcast faxing. Printing wirelessly and on the go – The MB451w is compatible with mobile printing applications through its network connectivity—and it's also Wi-Fi CERTIFIED™ /b/g/n standard. With its Wi-Fi Protected Setup™ (WPS™), the MB451w can be easily and securely installed on a wireless network either by Push Button or PIN WPS modes. Further enhance your productivity – With standard multi-tasking functionality, the MB451w MFP enables you to perform several simultaneous tasks, such as scanning a document while the unit is printing, or printing a document during fax communications.