DesignJet 746 300ml Ink Cartridge Kit The HP No.746 300ml Magenta Ink Cartridge uses HP's innovative UV stabilized pigment ink with Photo Ink technology. This delivers an unrivaled combination of exceptional image quality with over 200 years of print durability on a range of HP media along with rich, vivid colours. Carefully selected ultra-pure pigments ensure that the pigment particles remain evenly dispersed and the ink flows freely. Built-in smart technology makes adjustments for color accuracy and consistency, so you can be sure you'll get the same color, quality, and long-lasting prints. Designed together with the printer and HP Papers, this HP ink cartridge is easy to install and delivers consistent results print after print.