HP 81 C4931A Ink Cartridge for DesignJet 5000 series, 680ml, Cyan Unrivalled print speeds. Get fast, no-compromise inkjet printing with HP 81 Ink Cartridges and HP's Jetexpress technology Maximum quality print modes up to 1200 dpi help bring high-resolution images to production printing Always clear and sharp. HP 81 Ink Supplies ensure uncompromising print quality, performance and reliability Ink types : Dye-based