HP LaserJet Pro 3002dw Laser Printer For reliable office productivity. This laser printer is designed to power through large print volumes at high speed. Highlights: - Automatic two-sided printing - HP Wolf Pro Security - Ethernet and WLAN - PIN/pull option authenticates your print jobs only when you're present - Mercury-free 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