I have an HP printer. New and the box has not been opened. The printer with dynamic security Some HP printers are designed to work only with cartridges that have a new or remanufactured HP chip or electronic circuits. These printers use dynamic security measures to block cartridges that use non-HP chips or electronic circuits. Periodic firmware updates will maintain the effectiveness of these measures and will block cartridges that previously worked. HP remanufactured chips and electronic circuits allow the use of remanufactured, manufactured, and refilled cartridges. There is a valid warranty. Selling price 430﷼