high-definition hp printhead with inkjet technology for achieving homogeneous and even colours, includes introductory set of 4 hp 711 ink cartridges (black, cyan, magenta, yellow)hp?s dual ink technology is an innovative combination of the brightest dye-based colour inks and water-resistant pigment-based black to bring out every detail on plain papera fundamental component, designed with your hp designjet printer to deliver consistently high-quality prints on a wide range of media, saving you time, money and ensuring your customers? satisfactionan environmentally friendly and responsible choice: for producing new supplies, hp uses plastic from recycled original hp cartridges, recycled bottles and hangers