You can automatically connect to an wireless router by using a PIN code. You can use this method to set up if an wireless router is capable of WPS (Wi-Fi Protected Setup). Use a computer to enter a PIN code into the wireless router.
Select Wi-Fi Setup on the home screen.
To select an item, use the 
buttons, and then press the OK button.
Select Wi-Fi (Recommended).
Press the OK button.
Select Others > PIN Code (WPS).
Use your computer to enter the PIN code (an eight digit number) displayed on the printer's control panel into the wireless router within two minutes.
See the documentation provided with your wireless router for details on entering a PIN code.
Follow the on-screen instructions.
If you want to check the network connection status for the printer after setup is complete, see the related information link below for details.