HP44 Cartridges provide fast, high-quality color, fade and smudge-resistant ink for true color brilliance. The visible ink-level indicator allows you to monitor ink usage. Provides images that are always clear and always sharp. For use with HP Designjet 300, 400, 700 series printers, including 330D/E, 350C, 450C, 455CA, 488CA, 750C, 750C+ and 755CM.