HP #564 XL Genuine Black Ink Cartridge CN684WA - 550 PagesHP #564 XL Genuine Black Ink Cartridge This HP # 564 XL Inkjet Cartridge will help to keep your printer producing sharp, crisp, professional documents. It's specially designed to work with HP printers and is easy to install so you can do it yourself. This cartridge can also be known by its model number CN684WA It has an estimated page yield of 550 This cartridge is compatible for use with your HP DeskJet, Photosmart & OfficeJet models listed below The