This printer is intended to work only with cartridges that have a new or
reused HP chip, and it uses dynamic security measures to block
cartridges using a non-HP chip. Periodic firmware updates will maintain
the effectiveness of these measures and block cartridges that previously
worked. A reused HP chip enables the use of reused, remanufactured,
and refilled cartridges More at: www.hp.com/learn/ds