ismaildegani2
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!