Enlarge / HP sometimes bricks third-party ink and toner that’s over 90 percent full, Imaging Technology Council claims. Getty
HP printers have received a lot of flak historically and recently for invasive firmware updates that end up preventing customers from using ink with their printers. HP also encourages printer customers to sign up for HP+, a program that includes a free ink-subscription trial and irremovable firmware that allows HP to brick the ink when it sees fit.
Despite this, HP markets dozens of its printers with Dynamic Security and the optional HP+ feature as being in the Electronic Product Environmental
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