This LD remanufactured C9451A HP 70 light gray inkjet cartridge is an original Hewlett Packard C9451A ink cartridge which has been through one cycle of service and has been recharged. The cartridge was refilled with a professionally manufactured pigment-based ink formula for archival print life and color stability before being put through a rigorous testing process where it was monitored for quality and reliability. This professionally remanufactured LD cartridge for HP 70 also has a smart chip that makes continuous adjustments to optimize print quality and enhance reliability and cost effectiveness as well as monitor ink levels. The ink delivery system allows for efficient, economical replacement of individual ink cartridges. Why buy an original HP C9451A cartridge when you can get perfect quality out of our LD remanufactured C9451A inkjet cartridge at a fraction of the cost? Our remanufactured ink cartridges are not remanufactured by HP. We offer a Two-Year 100% Quality Satisfaction Guarantee on our remanufactured C9451A ink cartridges. For use in the following printers HP DesignJet Z2100, Z3100, Z3100ps GP, Z3200, Z3200ps, Z5200, Z5400.