In order to use Brother iPrint&Scan, your Apple mobile device must connect using a Wi-Fi connection to the same network that the Brother machine is connected. The network can use either Ad-hoc mode (Fig.1 - connected directly to the machine without a router/access point) or Infrastructure mode (Fig.2/Fig.3 - connected to a network through a router/access point).


  Fig.1 (Ad-hoc Mode connection between Brother machine and Mobile device)  


For an Infrastructure mode network, the Brother machine may be connected using either a Wireless (Fig.2) network connection or a Wired Ethernet (Fig.3) network connection depending on which connections are supported by your Brother machine. 


 Fig.2 (Brother Machine Using Wireless Connection)


 Fig.3 (Brother Machine Using Wired Ethernet Connection)