I am looking to test AirPrint with an app my company is developing. We have a network printer that should allow us to relay an AirPrint 'request' to a windows machine (once configured). As we are using a port - restricted network, I have to request the relevant port to be opened to allow AirPrint-ing to work. I have looked for some kind of documentation as to the specifics of AirPrint but can't find any. Can someone tell me what ports need to be used for AirPrint or point me to the relevant documentation?