The use of Brother Genuine replacement toner cartridges like the TN-261BK not only produces sharp, high-quality printouts with no streaking or smudging - it also lets you save money, time and paper due to less downtime or repairs. The Brother TN-261BK black toner replacement cartridge is for use with Brother laserjet printers. This printer cartridge is intelligently engineered to work in seamless unison without compromising the quality of the print. This replacement cartridge is for use with the following Brother laser printers and all-in-ones: HL-3150CDN, HL-3170CDW, MFC-9140CDN, MFC-9330CDW.