In reply to Anon Techie.

You need to be an Apple programmer who knows how to intercept the call to the print reader and redirect the process to read the print data from a stored file. Then you need to get your target's print in a digital version (should not be THAT difficult), convert it to the format the Apple reader generates and stuff it in the right location. I am sure all these specs exist in Cupertino. For all I care, there is probably a version of iOS8 in Russia or Bulgaria, ready to be downloaded.