I find it VERY weird that there's no mention of https://hackaday.io/project/176931-hp-printer-cartridge-control-module/details https://hackaday.io/project/17693

I find it VERY weird that there's no mention of https://hackaday.io/project/176931-hp-printer-cartridge-control-module/details https://hackaday.io/project/176931-hp-printer-cartridge-cont... which is a CUPS-based 2D inkjet printer using the exact same print head and open source software and CERN license open hardware. Most likely, that's also precisely the reason why this product uses a very old HP print-head. (The one from HP DeskJet 1110, released December 2014.) Because that one has been reverse-engineered already: https://spritesmods.com/?art=magicbrush&page=3 https://spritesmods.com/?art=magicbrush&page=3