Unless otherwise noted the cartridge capacity (ml of dye ink) matches the Epson capacity of the model. In order to utilize the advertised volume of ink our cartridges are overfilled. A portion of ink will remain in the cartridges even when the printer indicates ink out. Not to worry, this is the overfill necessary for proper ink capacity delivery and is not designed to be accessed. All Black Ink is under a limited warranty against manufacturing defect for one year from delivery.