Polaroid C9731A Replacement Toner Cartridge for HP 645A - Cyan High performance, guaranteed replacement toner cartridge from Polaroid, the leader in digital imaging. Cyan replacement toner for HP Color LaserJet 5500n, 5500dtn, 5500hdn, 5500dn, 5500, 5550n, 5550hdn, 5550dtn, 5550, 5550dn. Approximate yield: 12000 pages at 5% page coverage Smart engineering means a perfect fit for your machine while providing the same performance and reliability as original HP supplies. Helps protect our environment by containing recycled components, resulting in over 90% of the original cartridge's non-wearing parts from needlessly clogging landfills.