Each of the remanufactured HP 26A toner cartridges has been produced to maintain the quality of the genuine article. This is achieved by inspecting, cleaning and reusing components from empty CF226A toners and assembling an equivalent product that works in harmony with the HP Envy 5642 and all other compatible printers. As some parts of the genuine HP 26A simply cannot be reused, compatible components and chassis may be used to complete this recycled unit.The CF226A toner cartridge is then filled with enough compatible black toner powder to offer the same 3,100 page estimated yield of the original and give a quality of prints that is on par with the original. Each of our refurbished HP 26A toner cartridges comes with a full warranty and benefits from our 100% satisfaction guarantee.