The Genuine High Capacity Cyan Epson 378XL Ink Cartridge is perfect for users who print on a regular basis and want to maximise their return on investment when purchasing products. This cartridge achieves that aim and then some as it serves up a remarkably low cost per page of A4 at an approximate duty cycle of 830 pages. Extra-large cartridges ensure the continuity of your printing systems during every working day, which is crucial if your business prints a high volume of documents.