Check the listing for details. New ! Drum Reset Chip for HP Color LaserJet 8500 8550 C4153A. Color: Black, Condition: Open box. Listed at 9.95 USD. Brand NEW compatible HP drum reset chipfor HP Color Laserjet 8500 / 8550 Part number: C4153A There is a page counting computer chip inside of the HP drum. When the drum gets to a certain amount it shuts the drum off (Approx. 28,000 pages for mono color. It counts four passes or four pages for each full color). Because there is still plenty of life left in your drum. By putting a new computer chip in there you can be printing again and save almost $100. Normally the HP Color LaserJet 8500 / 8550 drum(C4195A)could get one or two more printing cycles out of the drum by install the Reset Chip. Reset Chip & Detailed Step by Step Instructions included.The Reset Chip is very easy to install. Takes less than 5 minutes to complete the job even you have never done this before. This Reset Chip is warranted to be free from defect, 100% compatible and money back guaranteed. FREE for the S/H. All major credit card accepted. I prefer PayPal. Email me with any questions. Please check my feedback and bid with confident.