Wi-Fi Direct (Simple AP) allows you to connect a smart device directly to the printer without a wireless router and print from the smart device.
About Wi-Fi Direct
Connecting to an iPhone, iPad, or iPod touch using Wi-Fi Direct
Connecting to Android Devices using Wi-Fi Direct
Connecting to Devices other than iOS and Android using Wi-Fi Direct
Disconnecting Wi-Fi Direct (Simple AP) Connection
Changing the Wi-Fi Direct (Simple AP) Settings Such as the SSID