HP LaserJet Pro 4002dn laser printer Stay productive and take care of daily business. High speeds and ease of use make this printer the perfect companion. Highlights: - HP Wolf Pro Security - Optional use of the HP Smart app - Automatic double-sided printing 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. Regular firmware updates ensure that these measures remain effective. A reused HP chip enables the use of reused, recycled and refilled print cartridges. More at: http://www.hp.com/go/learnaboutsupplies