Direct quote from HP for their new series printers

 "Winning in business means working smarter. The HP LaserJet Pro M404 printer is designed to let you focus your time where it’s most effective-helping to grow your business and staying ahead of the competition.
Workteams excel with HP’s black-and-white office LaserJet printers, which pack extra punch with high-quality results, extra power, and more features.
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:
http://www.hp.com/learn/ds"