This is a replacement cartridge for the Hewlett Packard Q7583A 503A magenta laser toner cartridge which is manufactured by LD and is guaranteed to perform with your HP printer. It replaces the original HP Q7583A toner cartridge. LD remanufactured replacement Q7583A laser toner cartridges are specially engineered to meet the highest standards of quality and reliability you can expect from LD. Our toners have exceptional yields that meet or exceed the OEM Original Equipment Manufacturer page yield for the Q7583A. Our remanufactured HP 503A contains up to 85% new parts including wiper blades, OPC drums, an electronic smart chip for accurate toner level readout and other internal components. While most competitors simply refill the toner cartridge and hope the drum and other key components last, we fully disassemble the toner cartridge and rebuild it to ensure the highest quality prints. High quality LD remanufactured Q7583A toner cartridges are an economical and sensible alternative to expensive OEM Q7583A HP 503A Hewlett Packard laser toner cartridges and supplies. The use of LD remanufactured replacement laser toner cartridges and supplies does not void your printers warranty. LD remanufactured laser cartridges are not remanufactured by HP.LD Products offers a 100% Quality Satisfaction Guarantee on our LD remanufactured Q7583A magenta laser toner cartridges. For use in the following printers Color LaserJet CP3505n, Color LaserJet 3800dtn, Color LaserJet CP3505x, Color LaserJet CP3505dn, Color LaserJet 3800dn, Color LaserJet 3800n, Color LaserJet 3800.