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Man-in-the-Middle PCB Unlocks HP Ink Cartridges
(hackaday.com)
This is a most excellent place for technology news and articles.
My HP is good, but it's one of the liquid ink ones instead of cartridges. Got for PPS support so I new it would just print things on my network.
Wish I had a open source option though. And or at least a manufacturer that was possibly using slave labor (made in China and all that).