When a photo printer requires just four ink cartridges to produce professional photographs that look and feel as though they came from a photo lab, you know each one of those cartridges has to contain some very high-quality ink. For an Epson printer, genuine Epson products like the Original Epson T0551 Black Ink cartridge are the best possible ink. This cartridge is designed for top performance in select Epson Stylus Photo printers. The Original Epson T0551 Black Ink cartridge contains 8 ml of bold black ink.