The use of Brother Genuine replacement standard-yield toner cartridges like the TN-221BK helps produce sharp, black and white pages with the quality you expect from Brother products. The Brother TN-221BK replacement black toner cartridge is for use with 6 Brother printers. This professional cartridge is intelligently engineered to work in seamless unison without compromising the quality of the print. The Brother Genuine TN-221BK replacement standard-yield black toner cartridge can print approximately 2,500 pages. Brother is dedicated to being environmentally responsible and offers disposal programs for properly discarding its cartridges.