Sophia Global Remanufactured Ink Cartridge Replacement for HP 564XL (1 Black) Backed by a 100% Guarantee and a Two-Year Warranty ISO 9002 Quality Certified Manufacturing Process Up to 550 pages This cartridge was professionally remanufactured in an ISO 9002 factory. It was used once and then sent to our factory where it underwent an extensive process including cleaning, testing the chip, and ink refilling. Before being sealed, each cartridge is tested in a live printer to ensure crisp text and true color reproduction. The cartridge is finally sealed and placed in a static protective bag.