This is a replacement cartridge for the Hewlett Packard C4127X (27X) black laser toner cartridge which is manufactured by LD and is guaranteed to perform with your HP printer. It replaces the original HP C4127X toner cartridge. LD remanufactured replacement C4127X 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 C4127X. Our remanufactured HP 27X contains up to 85% new parts including wiper blades, OPC drums, 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 C4127X toner cartridges are an economical and sensible alternative to expensive OEM C4127X (HP 27X) 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 two year 100% Quality Satisfaction Guarantee on our LD remanufactured C4127X black laser toner cartridges. For use in the following printers: LaserJet 4050, LaserJet 4000, LaserJet 4050tn, LaserJet 4050n, LaserJet 4050 usb-mac, LaserJet 4000t, LaserJet 4000tn, LaserJet 4000n, LaserJet 4050t, LaserJet 4050se, LaserJet 4000se. We are the exclusive reseller of LD Products brand of high quality printing supplies on Newegg.