It's a fair few years now since Canon launched its ground-breaking five-ink printing system, featuring dye-based cyan, magenta, yellow and black inks, as well as a secondary pigment-based black ink in the line-up. The idea behind the so-called ContrastPlus configuration is that the pigment-based black ink gives strong black text, rather than the faint grey appearance often associated with dye-based black ink, while contrast is boosted for accurate colour photo reproduction.



Link: TechRadar