Many mfd's now incorporate a fax machine as well. As the device is built for handling a high throughput of scanned documents the fax machine functionality is that of a high performance fax machine and therefore packs a big punch and can scan and fax large documents quickly and efficiently.
Certain mfd's also enable incoming faxes to be sent electronically to the recipients email in-box directly without the need to print from the multifunctional device itself.