4 - 2019: Printers send printed pages and much more data to HP
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6 - https://robertheaton.com/2019/09/15/hp-printers-send-data-on-what-you-print-back-to-hp/
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7 - 2020: "Free ink for life" wird zu "1$ pro Monat oder der Drucker ist tot"
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9 - https://www.eff.org/deeplinks/2020/11/ink-stained-wretches-battle-soul-digital-freedom-taking-place-inside-your-printer
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10 - 2023: Blockiert Tintentanks ohne offiziellen HP-Chip
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12 - https://old.reddit.com/r/assholedesign/comments/11l4kne/hp_have_updated_their_printers_to_outright_ban/