Airprint and Xfinity Route - Cannot find Airprint Printer

I have an HP Laserjet P1002w connected to an Xfinity router; I can see the printer on the router when I look, but all I get is 'No AirPrint Printers Found' on my iPad or iPhone - Any ideas?

I have reviewed the router settings and there is really nothing in there that I can change except to add new services.