this post was submitted on 13 Nov 2023
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No he clearly says no ink and no toner. Toner is melted onto the paper after a laser (now mostly LEDs) heat up a drum. He's talking about burning the paper with a laser.... Which would be interesting but really hard to do where a top layer is burned black without toasting the rest of the layers.
Pretty sure that's how my receipt printer works, but it's just one color onto specialized paper.
Thermal paper. Thermal printer.