If you want to know it is displayed on the LED screen of the printer when you trying to wirelessly connect your computer to it. This has nothing to do with your router. If your computer has located your network printer, then it will ask you for a WPS PIN. Just look for the generated PIN on your printer screen. To know more visit us.
If your wireless access point supports WPS (Wi-Fi Protected Setup™), you can configure the printer easily without a computer. By pushing a button on the wireless access point/router, you can set up the wireless network and security settings.
The printer location for a wireless operation is very important as it tends to increase and decrease the printer speed functionality. If you want your printer to print fast then try to install it near a Wifi router or access point. So your brother catches the signal more efficiently and completes the printing process in a faster manner.