Firmware update for HP printers bans third-party ink

Printer companies and third-party cartridge manufacturers (and refillers) have a long, fraught relationship. Recently, HP added another problem to the mix. The printer maker introduced a tweak to its firmware that caused HP printers to reject third-party ink cartridges.
This isn’t some freak accident that can be corrected by reloading an unrecognized cartridge. It’s very real. “The purpose of this update is to protect HP’s innovations and intellectual property,” HP