Our printer is a Brother MFC-L8690CDW.
Install the driver and simply use it over our wifi network.
If printing over our network doesn't work, you can try to connect with the printer via USB.
You need to be connected to xHain. For some reasons the printer can appear on xGuest but will not work. Before proceeding please check you are on correct network.
The settings are locked down to prevent accidentally enabling WiFi. You should not need to change anything. If however you need to and know what you're doing PIN is 0000.
If you want to connect via IP the address is 192.168.42.3. If you don't know what an IP is ignore this.