Once that is said, it should be possible to work in a general-purpose open source 2d printer. The open community has achieved bigger goals. The biggest problem I can see is the entry barrier: to get a very basic printer, you have to invest thousands of time with a lot of knowledge in different areas, when a basic printer, even from the large companies, is not very expensive.
I think that one of the only chances we have for that to happen is that a company frees its designs and patents and community starts working from there.
It'd probably be easier to make a nice block alphabet for a plotter and then just print your documents as biro drawings.
But again, feeding paper seems like a very fiddly problem.
Daisy wheel printers were slow, loud, and had huge limits (no kerning, single typeface, no printing family photos), but the print quality was good. And if you are the kind of person who likes mechanical keyboard sounds, the sound of a daisy wheel printer is pretty cool.