I once worked at a place with a fancy printer that didn't use cartridges and instead used blocks of wax that could be continually fed into it. It took 20 minutes to start up and warm the wax up to the point it could be used as ink, but I thought it was a nifty idea. They're called solid ink printers if you're interested in looking them up.

I'm wondering about the price too. Feel like we see someone trying to do this every few years and most of them tend to fall apart when someone figures out how much it will cost to do it effectively.

This one seem to have kept it very simple though. Not exactly a new idea but simplifying paper feed with the continuous roll & cutter idea might be genius.

Not a super complicated device, but toner would be a very different tech stack, probably not.