The canon pgi9 clear ink is part of canons range of pigment inks pigment ink is the preferred ink type for most commercial photo and fine art printers as it maintains high contrast levels clarity and colour saturation over extended periods of time pigment inks produce a solid layer of colour enabling the clarity and vivacity of the print to endure together with canons high performance fine full photolithography inkjet nozzle engineering print heads these pigment inks produce sharp a3