Laser Tek Services &reg; Black Toner Refill Kit with reset chip for the HP Q6470A 502A Color LaserJet 3600 3600dn 3600n Kit comes with 1 Bottle, Easy Instructions, Funnel Cap, Latex Gloves if needed, and reset Chips Ships Directly from our warehouse within 1 business day! Each Bottle is good for at least the same page yield as a new cartridge, usually a bit more. Great phone support with Laser Tek Services, not usually needed, but if you need it we are there for you. Save big each time you refill and GO GREEN!!!