Neither of my 2 cartridges now work following a firmware upgrade by HP. HP’s recent firmware updates for some of their printers ‘locks’ the genuine HP ink cartridge. What does this mean? Well it means that the original HP cartridge cannot be used in any other printer, which also prevents it from being recycled, or refilled as a compatible.
My cartridges were replace in April as 'genuine' (from Cartridge World & Public), but whilst I was away over the summer, I removed them, put them in a sealed bag and stored in a fridge to prevent them drying out. Now when I reinsert them, the printer no longer recognises them!
https://www.internet-ink.com/blog/Print ... Cartridges
