The capacity of black ink within the LC3239XLBK exceeds that of the LC3237 alternative also available, meaning the cost per page is much lower. Thanks to the genuine Brother black ink in the LC-3239XLBK you will also experience a quality of print superior to any other alternative ink cartridge on the market too.With an estimated page yield of 6,000 prints, the genuine high capacity Brother LC3239XLBK is ideally suited for environments that produce many print and want to keep costs low, without compromising on quality. You will find a complete list of Brother inkjet printers below that are compatible with the LC-3239XLBK black ink cartridge.