Two new things on this topic...
1 -- I'm not sure how this worked, but the (free) desktop part of the PrinterShare app that's needed for non-WIFI or non-Bluetooth printers has a very negative down side. Looks like your printers are placed on an international "available" list for anyone with the program to use. I had a list of printers in Sydney, Australia, among others. Watch out for this one!!! I've uninstalled everything and took the $5 loss for the X app.
2 -- Saw an ad on MNF for HP's new printers that are actually designed to work with smartphones!!! Like they were reading our minds????? Must find out more about this.