Do it Wiser Compatible Black Toner Cartridge for Brother TN315BK TN336 TN315 TN310 TN331 MFC-9970CDW HL-4150CDN HL-4140CN HL-4570CDW HL-4570CDWT MFC-9460CDN MFC-9560CDW - High Yield 4,000 Pages Compatible with Part Number: TN336BK TN315BK TN310BK TN331BK Estimated page yield: Black High Yield 4,000 pages (depends on printer and usage) Compatible with printers Brother HL-L8250CDN, HL-L8250CDW, HL-L8350CDW, HL-L8350CDWT, HL-4140CN, HL-4150CDN, HL-4570CDW, HL-4570CDWT, MFC-9970CDW, MFC-L8600CDW, MFC-9460CDN, MFC-9465CDN, MFC-9560CDW, MFC-L8650CDW, MFC-L8850CDW, DCP-9050CDN, DCP-9055CDN, DCP-9270CDN, DCP-L8400CDN, DCP-L8450CDW Our Do it Wiser smart toner cartridges are covered by a 1 year warranty against defects Cartridges certified to work | ISO 9001 quality assurance | ISO 14001 environmental management | RoHS Lead Free Brother TN336BK Brother TN315BK Brother TN310BK Brother TN331BK Brother HL-L8250CDN, HL-L8250CDW Brother HL-L8350CDW, HL-L8350CDWT Brother HL-4570CDW,  HL-4570CDWT Brother HL-4140CN, HL-4150CDN Brother MFC-9970CDW Brother MFC-L8600CDW Brother MFC-9460CDN, MFC-9465CDN Brother MFC-L8650CDW, MFC-L8850CDW Brother DCP-9050CDN, DCP-9055CDN Brother MFC-9560CDW Brother DCP-9270CDN Brother DCP-L8400CDN Brother DCP-L8450CDW