I wish there was a cheap simple laser engraver that could just “burn” black the surface of generic bulk printer paper. As in an inkless monochrome printer.

A bit like How to Cut, Score, and Engrave Paper With a Laser but without the need to use dedicated laser cutter.

With the explosion of interest in 3D printing, machining and laser cutters, I'm just eager to get hold of a printer like that and forever give up on liquid ink and toners of all sorts.