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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.
Those eco tank printers seem alright
Not sure about the Eco tank line, but the smart tank line botched the IPP interface. Ink level reporting is always wrong and printer status is regularly wrong. Exposed settings are limited to push people to the app.
I had to mess around with my ET and compile a driver (nothing pre-packaged for aarch64) in order to get CUPS to play nice with it. The network implementation is garbage so, it's been nice having a pi print server.