Standard Black Ink Cartridge (Approx. 600 pages in accordance with ISO/IEC 24711)- Brother original supplies maintain top quality results & offer great value for money.- Brother employ precision engineering in the development of ink. These inks are specially designed to give you high quality results from your Brother printing technology every time.- Brother original supplies produce images that are true to life every time.- Brother's colour matching process is designed to work with Brother's own ink formula.- Low cost individual cartridges just replace the empty colour cartridge reducing wastage and cost.