Print confidently with TN637BK Ultra High Yield Black Toner Cartridge. Expertly engineered, is the only toner brand recommended for Brother Business Color Laser Printers. With the reassurance of dependable compatibility, this cartridge produces sharp, precise results and delivers yields up to 10,000 pages(1) . A must-have for businesses with high print volumes, Ultra High Yield Toner is the reliable choice for producing professional documents with ease. When it's time to replace your printer's toner cartridge, the brand provides a worry-free experience. For best results, use with Brother single-function and all-in-one business color laser printers: HL-L8570CDW, MFC-L8970CDW, and MFC-EX575. (1) 1 Approximate toner cartridge yields in accordance with ISO/IEC 19798 (Letter/A4).