If you use original Brother toner cartridges designed specifically for your printer, you can be sure that you will always receive crisp, professional-looking documents. This high capacity black toner is designed for a maximum of 3,500 pages and is compatible with HL-L8250CDN, HL-L8350CDW, DCP-L8400CDN, DCP-L8450CDN, MFC-L8650CDW, and MFC-L8850CDW.