5-in-1 Monochrome Laser Multi-Function Center with Duplexing (Fax/Print/Copy/Scan/PC Fax) The MFC-8840DN is the flagship model for all Brother Monochrome Laser Multi-Function Centers which offers the same functions and features as the MFC-8840D plus built-in networking. It’s an affordable solution for any home office or any size business since multiple users can print, scan and fax using just one machine which saves you space and also money because the network card is already built-in the MFC-8840DN.