Hp 645a color laserjet 5500,5550 prjnter toner cartridges are guaranteed to meet or exceed original hewlett packard printer cartridges in both printing quality and high yield pages. guaranteed to work with the following printers:
Color LaserJet 5550n.
Color LaserJet 5500.
Color LaserJet 5500dn.
Color LaserJet 5500dtn.
Color LaserJet 5500hdn.
Color LaserJet 5500n.
Color LaserJet 5550dn.
Color LaserJet 5550dtn. I