Compatible Printer Models : DCP-L5500DN, DCP-L5600DN, DCP-L5650DN, HL-L5000D, HL-L5100DN, HL-L5200DW, HL-L5200DWT, HL-L6200DW, HL-L6200DWT, HL-L6250DW, HL-L6300DW, HL-L6400DW, HL-L6400DWT, MFC-L5700DW, MFC-L5800DW, MFC-L5850DW, MFC-L5900DW, MFC-L6700DW, MFC-L6750DW, MFC-L6800DW, MFC-L6900DW Printer. Package Contents : 1 Pack TN850 TN-850 Black Toner Cartridge. High Page Yield : Up to 8,500 Pages per Black Toner Cartridge , 4% coverage (Letter/A4). Our higher quality photosensitive toner provide clear and smooth printout. Stable print quality keeps you away from lines , spots and leaks. After-sales service: The product can be returned or exchanged if there is a problem. You can contact us if you have any questions, we will definitely give you a satisfactory solution.