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Customers fume as HP blocks third-party ink from more of its printers

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HP customers are showing frustration online as the vendor continues to use firmware updates to discourage or, as users report, outright block the use of non-HP-brand ink cartridges in HP printers. HP has already faced class-action lawsuits and bad publicity from Dynamic Security, but that hasn’t stopped the company from expanding the practice.

Dynamic Security is a feature used by HP printers to authenticate ink cartridges and prevent use of cartridges that aren’t HP-approved. As the company explains:

“Dynamic security relies on the printer’s ability to communicate with the security chips or electronic circuitry on the cartridges. HP uses dynamic security measures to protect the quality of our customer experience, maintain the integrity of our printing systems, and protect our intellectual property.

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