Despite its model number, the OKI MB451w is not part of the OKI MB401 series that includes the Editors' Choice OKI MB471 . According to OKI Data, it's a replacement for the MB200 series, and is aimed at a different audience, at the low end of the small office spectrum.
Prints, copies, scans, faxes; Duplex (two-sided) printing; Duplexing automatic document feeder; Ethernet.
Big and heavy for the smaller offices it's meant for