High-capacity toner cartridge is specially formulated & tested to provide the best quality & most reliable printing you can count on page after page. It is designed for use in Xerox WorkCentre 6515 & Phaser 6510. Xerox Genuine Supplies & Xerox equipment are made for each other. The higher yield makes this cartridge perfect for high-volume printing. High-capacity cartridge yields approximately 2,400 pages.