DigiToner&trade; by TonerPlusUSA New Compatible Brother TN750 TN720 High Yield Toner Cartridge (Black, 1 Pack) RELIABLE TONER: Includes 1 Black toner cartridge. Certified ISO 9001 for quality assurance. Environment assured Certified ISO 14001. COMPATIBLE PRINTERS: Brother HL-5440DN 5445D 450DN 5470DW 5470DWT, HL-6180DW 6180DWT, DCP-8110DN 8150DN 8155DN 8250DN, MFC-8510DN 8515DN 8520DN 8710DW 8910DW 8950DW 8950DWT, Lenovo-LJ3700D 3700DN 3800DN 3800DW M8600DW 8900DNF. YIELD: Toner yield is 8,000 pages based on 5% coverage. HIGH QUALITY: Because TonerPlusUSA's extensive research and development, this compatible replacement Brother TN-750 TN-720 toner cartridge is guaranteed to be easy to install with your Brother laser printer and give your documents outstanding print quality, clarity, and exceptional yields at a lower cost. LIFETIME GUARANTEE SAVES YOU MONEY AND HASSLE: If, for whatever reason, you don't absolutely love your print quality, just return it, and we'll replace it or give you 100% of your money back, no questions asked. We're that confident that you'll love your print quality, and will continue to use our products in the future.