Compatible with: Phaser: 6510, 6510/DN, 6510/DNI, 6510/DNM, 6510/N & WorkCentre: 6515, 6515/DN, 6515/DNI, 6515/DNM, 6515/N Page Yield*: 4,300 For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) Replaces 106R03479 (2,400 Page Yield*) yellow compatible toner cartridge. *at 5% coverage (ISO/IEC standard) Replaces 106R03479 (2,400 Page Yield*) yellow compatible toner cartridge. *at 5% coverage (ISO/IEC standard) Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.