Mark C. Martin
As Judy have already explained about WPS method. So I am going to skip it and directly going to tell you another way to connect brother printer to the wifi.
Connect brother printer to wifi Using Printer panel-
These days every printer comes with its own control panel. You do also get a small screen to moderate and configure the printer.
Brother printers are also coming with same type control screen display.
You can easily connect your printer to the wifi using the printer display panel. In order to connect your printer, you need to follow the given steps:
Power on your printer, and press the menu or home button.
Go to network settings using up or down arrow key.
Select WLAN from the menu.
Now click on the wireless setup wizard.
Here, your brother printer will start searching for available network. Once it will scan the network, you will get a list of all the available wireless networks. You need to select your wifi network and click on next.
Now this will ask you for the encryption type, here you need to choose your encryption type for your wifi and click on next again.
Finally, you will reach the password authentication window, here you need to type your wifi password and click on ok. Once you will hit the ok button, it may take a few seconds to get connected to your network.
As I can assume, your brother printer must be connected with the wifi now. Now you should try to print something.
In case, if you are having trouble with printing. you may visit: why is my brother printer not printing?