For use in: Sharp MX-2600N, MX-3100N Replacement for: Sharp MX-31NTBA for black, MX-31NTCA for cyan, MX-31NTMA for magenta, MX-31NTYA for yellow Toner kit contains: 1 of each CMYK cartridge Page Yield: 18,000 pages for black, 15,000 pages for each color; based on the industry standard ISO/IEC 19798