Each of these Epson 34XL ink cartridges have been filled to a high capacity that offers users with an estimated 1,100 prints. The 16.3ml of black Epson ink contained within the C13T34714010 conforms to the specifications of their own DuraBrite Ultra ink. The advantages of this ink include extra sharp text and graphics on plain paper, minimal bleeding on double-sides print and the most vibrant colours imaginable.Resistant to smudging, fading and even liquids, we are sure you will be delighted with the results of the Epson 34XL black ink cartridge. You will find this high capacity Epson C13T34714010 black ink cartridge to be compatible with just a couple of elite Epson printers that includes the Epson WorkForce Pro WF-3720DWF.