Containing 4ml of ink the Hewlett Packard T6N02AE is the standard capacity black cartridge in the range. The top-quality genuine ink within the HP 303 black ink cartridge offers you an estimated 200 prints according to Hewlett Packard, making this unit ideal for everyday doccuments.The standard capacity HP 303 can be used in a variety of printers aimed at home users including the wonderful Envy Photo 7130. Problems with genuine Hewlett Packard products are more than rare, but should you experience any problems the manufacturer offers a full guarantee for the T6N02AE directly.