Man-in-the-Middle PCB Unlocks HP Ink Cartridges - eviltoast
It’s a well-known secret that inkjet ink is being kept at artificially high prices, which is why many opt to forego ‘genuine’ manufacturer cartridges and get third-party ones inst…
  • ChapulinColorado@lemmy.worldEnglish
    3·
    1 month ago

    Replacement electric toothbrush heads run on the same scheme as disposable razors with high margins and vendor lock in. I’ve also seen vendors (Phillips) change the design to force you to buy another base station/brush.

    • melroy@kbin.melroy.org
      2·
      1 month ago

      Also you can’t replace the battery. So if you electric brush is dead, you will need to replace the whole thing.