Laser Tek Services &reg; 106R01379 Black Toner Cartridge Refill Kit with reset chip for the Xerox Phaser 3100 series Kit comes with 1 Bottle, Easy Instructions, Funnel Cap, 1 reset chip, and Latex Gloves if needed 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, for all your troubleshooting needs! Save big each time you refill and GO GREEN!!!