If you want to find out the WPS pin for HP Deskjet 2600, you must follow a few important instructions. At first, you must look at the rear of the router for the WPS Pin and then note it down. Now, if there is no pin, you can perform the steps. You are supposed to press the HP DeskJet 2600 Wireless setup button, which is at the rear of the Printer. You must hold it for three seconds. Make sure that the input tray is loaded with paper and the printer prints a test page with the WPS Pin.