This standard capacity HP 62 black ink cartridge represents the cheapest way to get several HP printers (including the excellent HP Envy 7640) up and running with genuine black ink. The black C2P04AE cartridge contains 4ml of high quality pigment-based black ink for maximum definition and protection from fading even when photos are left in direct sunlight. Ink comes directly from these cartridge onto your printer paper making installation and the occasional bit of maintenance quick and easy.