Formulated to deliver the highest performance with even greater image quality, highly accurate color reproduction & superior print longevity, DST ultra premium ink is manufactured to the highest standards specifically for Hewlett Packard's Designjet Z Series. This ultra premium pigment based ink also provides exceptional durability & media compatibility. Our colors are a dead on match of the original & since it's so incredibly close to the original there's no need to change the color profile or flush the lines, It's Plug & Play just like the original.