WPS pin is basically an eight-digit pin that you need to enter on your computer while connecting it to the printer over a network. You can find the WPS pin on your printer using some simple steps. First of all, you should go to the Control Panel on your printer, wait for the blue light to start blinking. Now scroll the screen, click WiFi protected setup, and click WPS Pin. Note down the eight-digit code that appears on your screen. Now you can simply enter this code on your computer screen to connect printer and computer over a network.