Dataproducts premium remanufactured Print cartridges help you get more for your money while performing as well as OEM cartridges. Dataproducts ink cartridges are developed and manufactured in state-of-the-art facilities utilizing technology and automation to ensure consistent, high quality printing. All Dataproducts cartridges go through rigorous pre and post testing and are backed by a 100% satisfaction guarantee. Dataproducts helps to protect the environment by keeping used cartridges and cartridge components out of landfills. This inkjet cartridge is compatible with HP office jet 6220; office jet Pro 6820, 6830 (HP 934). it yields 1,000.