The differences are in the available functions.
An short view of the functions are:
The MFD 6020 is a printer/scanner USB or network using the USB WLAN adapter XG705A
The MFD 6050 has the same functions but also offers the fax opportunity directly on the device or from the PC where it is installed as a USB device.
The WLAN installation of the MFD6050 also occures using the adapter XG705A.
A particular feature of the MFD 6050 is the extention possibility with a USB DECT base for DECT telefony
The MFD 6080 is the offers all functionalities of the MFD 6050 but without DECT possibility.
It has a LAN port for the connection to an Ethernet network, and offer the possibility of high range multi function devices such as ““Scan/reroute faxes to mail”” and ““Scan/reroute faxes to FTP”” as well as the connection to a Networked Domain and the access to LDAP.
