HP C4846A No 80. Ink Cartridge 350ml Cyan for Designjet 1000 series. Page life - 4400. Perfectly suited for use in design studios and other graphic uses, Hewlett Packard No 80 Ink Cartridges are perfect for use in high quality, high precision, complex prints. Providing great colour definition, you don't have to worry about colour bleed ruining the quality of your prints and creating murkiness. Each colour provides a range of different shades, making sure that even subtler hues are dealt with high definition and clarity.