Hewlett-Packard, or HP, has sparked fury after issuing a recent “firmware” update which blocks customers from using cheaper, non-HP ink cartridges in its printers. Customers’ devices were remotely updated in line with new terms which mean their printers will not work unless they are fitted with approved ink cartridges. It prevents customers from using any Read more about HP disables customers’ printers if they use ink cartridges from cheaper rivals[…]