Genuine Brother ink is the result of extensive research & development of over 100 different elements. Using non-Brother supplies may affect hardware performance, copy quality and machine reliability. When combined with the right quantity and configuration, components of the 4-cartridge color ink system, these elements ensure reliable operation and protection of your machine and its long-life print head. Device Types: Inkjet Printer; Color(s): Magenta; Page-Yield: 300.