Actually, I think the scanning approach actually simplifies things quite a bit. Let's see if I can explain this properly:
You can think of SnapJet as performing the same operation as holding a phone about 10 inches away from an old film camera, and opening and closing the shutter. Light comes out of the phone, and hits the film after being focused by a lense. The picture then develops from a chemical reaction based on the incident wavelengths of light. The novelty in SnapJet is simply that we reduce that 10 inches to 1mm - i.e. we focus the light using optical fibers rather than a traditional lense.
This actually makes the device super-low-tech. The optical fibers are just plastic, and so the device technically doesn't need any electronics whatsoever. The current printer we're kickstarting has batteries and a PCB in order to support Fuji's film cartridges (and make the user experience a little smoother). But we're imagining future versions that work entirely without batteries or motors and are ultra-slim, like 5-7mm.
Hope that makes more sense!
A lot of people who read your product description (and your comments here) seem to think that it's an actual image scanner that creates a digital image and then prints it. You can help preventing that misunderstanding (and avoid all the questions about whether one can print via Bluetooth) by making more clear what your product actually is in the language you use.
seems like a lot of additional engineering/hardware for worse quality. even the minor hassle of a cable connection would be worth it, no one is going to carry this thing around, it's gonna be on some desk somewhere where a dock or cable would easily be no problem.