//Chipped cartridges filled with alternative ink would still work, HP told the BBC.
It said: "These printers will continue to work with refilled or remanufactured cartridges with an original HP security chip. Other cartridges may not function.//
mikey
I take that to read that if you have a genuine HP cartridge - if you refill it or if it's a remanufactured hp cartridge - then it will continue to work