OpenPrinter
Points and comments are a snapshot, not live.
OpenPrinter is a repairable, open source inkjet printer using off-the-shelf HP cartridges.
OpenPrinter is a compact, repairable inkjet printer designed to last, with a refillable ink system and open source components (Raspberry Pi Zero W, CUPS). It prints on A4/A3 sheets or rolls, uses standard HP 63/302/803 cartridges, and supports single-cartridge operation to avoid forced color use. The printer can be desk- or wall-mounted and is driver-free across OSes. A crowdfunding campaign is live on Crowd Supply, offering self-assembly or pre-assembled kits under a Creative Commons BY-NC-SA 4.0 license.
What commenters are saying
Commenters debate the feasibility of an open inkjet printer. A top comment argues inkjet printing requires extreme materials science and patents, making open designs unrealistic without a working prototype. Others counter that the project uses off-the-shelf HP cartridges, outsourcing the complex printhead, and compare it to building a PC without fabricating chips. Skeptics note missing PoC demos despite prior announcement, while supporters highlight potential for refillable cartridges and HP's patent exhaustion via first sale doctrine.