Keep the project momentum. With radically simple solutions and the easiest PDF printing[1] it's easy for everyone to get great results every time. Meet deadlines with the fastest print speed in the most compact quiet printer.[2]Dynamic securityN/ADynamic security enabled printerProduct DisclaimerN/ACertain HP printers are intended to work only with cartridges that have a new or reused HP chip or electronic circuitry. These printers use dynamic security measures to block cartridges using a non-HP chip or electronic circuitry. Periodic firmware updates will maintain the effectiveness of these measures and block cartridges that previously worked. Reused HP chips and electronic circuitry enable the use of reused remanufactured and refilled cartridges. More at http://www.hp.com/learn/ds