Our remanufactured HP ink cartridges epitomize the quality and performance that you expect, amd are filled with specially formulated printing ink compatible to HP inks or packaging ink for marking. Each remanufactured HP cartridge, in the 45a design, is considered an effective alternative to an expensive original HP inkjet cartridge, as well as to the flood of subpar and unreliable remanufactured cartridges on the market today. Our HP 45A black ink is compatible to a HP deskjet ink, but may, also, be used on mail addressing equipment utilizing HP technology when printing on porous paper - with no drier. Our compatible C6195A fast dry printing inks - available in black, spot colors or fluorescent ink; compatible C8842A versatile inks; and compatible UV invisible ink perform best on mail equipment utilizing HP technology - with a drier present. (Mailing ink performance may vary on coated paper depending on what mailing software may be present on your address printer). Mail addressing equipment where our waterbased ink performs best include mailing equipment manufactured by: Bryce, Datatech, Hasler, Kirk Rudy, Pitney Bowes, Prism, Secap, Sure Feed and Videojet. Our, compatible, Reliable H marking ink has been specifically designed for printing coding on corrugated packaging, but works well on some other fiber boxes too. These cartridges are meant for use on marking equipment manufactured by: Accufast, Anser, AT Information Products, Big Jet, Digital Design, Gunther, HS Automatic, HSA USA, ID Technology, ImTech, Mark-O-Print, MSSC, Nutec, RSI Print Systems and Videojet.