Dataproducts DPC935CMY Remanufactured Cyan, Magenta, Yellow Inkjet Cartridges for HP 935 Multi-Pack Ink Assembled in USA Premium ink cartridges that meet or exceed OEM quality, page Yield, and reliability 1-year warranty, 100% performance guarantee: the use of this Dataproducts Print cartridges does not void your printer's warranty Compatible hardware: HP office jet 6220; office jet Pro 6820, 6830 Multi-Pack