The OEM has since said it should have communicated about the update better, and will “issue an optional firmware update” to remove the initial feature.

HP has published a letter in which COO Jon Flaxman explains that the OEM “should have done a better job of communicating about the authentication procedure to customers, and we apologise”.

"It is important to understand that all third party cartridges with original HP security chips continue to function properly”, he wrote, adding that the company has issued “an optional firmware update that removes the dynamic security feature”. 

According to Flaxman, the update was to “ensure the best consumer experience and protect them from counterfeit and third-party ink cartridges that do not contain an original HP security chip and that infringe on our IP”. He added that HP Inc would "continue to ... protect our IP including authentication methods that may prevent some third-party supplies from working”.

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