You can automatically connect to a wireless router by using a PIN code. You can use this method to set up if a wireless router is capable of WPS (Wi-Fi Protected Setup). Use a computer to enter a PIN code into the wireless router.
잠금 설정이 활성화된 프린터에서 설정을 구성하려면 관리자로 로그인해야 합니다.
프린터 화면에 
가 표시되면 이 아이콘을 누르고 관리자로 로그인하십시오.
Tap 
on the home screen.
Select Router.
Tap Start Setup.
If the network connection is already set up, the connection details are displayed. Tap Change to Wi-Fi connection. or Change Settings to change the settings.
Select Others > PIN Code Setup(WPS)
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.
See the documentation provided with your wireless router for details on entering a PIN code.