Winning in business means working smarter. The HP Color LaserJet Pro M454 printer is designed to let you focus your time where its most effective-helping to grow your business and staying ahead of the competition.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