Having the best quality black imaging drum within your Hewlett Packard printer means you get the best print quality back. Therefore, there is no better way to ensure the best results than this genuine CF257A image drum unit.Carefully crafted by Hewlett Packard to ensure that it works flawlessly with your monochromatic laser printer, the HP 57A drum unit handles the black powder from your toner cartridge with ease. Thanks to the efficient design of the Hewlett Packard CF257A imaging drum unit produces an estimated 80,000 prints, making it one of the best possible purchases for any of the compatible printers listed on this page.