WPS Pin actually a 8 digit pin number that stands for “Wi-Fi Protected Setup”. This one of the way to setup wireless connection with other network devices. If you really want to know What is a WPS Pin then go through the post. If you are unable to find the pin number on HP printer then get help from experts to find it and establish connection.
The PIN (Personal Identification Number) Method is one of the connection methods developed by the Wi-Fi Alliance®. By inputting a PIN which is created by an Enrollee (your machine) to the Registrar (a device that manages the wireless LAN), you can setup the WLAN network and security settings.