SSG that is good info....thanks for sharing but this is really not that hard. You can use google print to send a print job to workstation that is running google chrome and configured with the local printer. I have done this from my living room as a test to 3 different printers and walked into the showroom when I got to the office and went around a retrieved all the print jobs. This is a FREE solution once configured properly.
I have not heard of Breezy before so will have to research that to learn more. Having sold Sharp in the past they use to have mobile app called Sharp Central Print not sure if that still is around....last time I looked in the app store I could not find it.
I think this application would be more important in a business center setup where you bring your own device. Canon has the Canon Mobile Print that is FREE and works great.
There are many ways to duplicate what sharp is doing....the bad part is that I am sure they have included this in the base price and I would question the overall security of the system.
You can also setup a guest network with a small printer in the lobby that guest can use to print on.