The genuine HP 307XL is a high capacity black ink cartridge that offers users the lowest cost per page possible from a branded product. Designed to keep all compatible machines (like the HP Envy 6022) up and running to the highest standard, the 3YM64AE is a worthy purchase for any lucky owners of these printers.The 400 page yield of the HP 307XL black ink cartridge makes the cost per page surprisingly low for an original unit. The Hewlett Packard 3YM64AE is guaranteed to give you the very best from your inkjet printer.