Can an iOS device discover a Bonjour service running on the same device?

I've incorprated the source code from https://github.com/istopwg/ippsample into an iOS app. Just out of curiosity I wanted to see if my iPad can print to an IPP Server service running on itself. The IPP server runs and I can successfully "print" to it from my mac. However, when I print from my iPad the IPP server doesn't show in the list of printers. Is there something in the architecture of an iOS device that stops this working?