The PFI-300 Chroma Optimizer is a critical element to attaining professional print quality with accurate color and reduced metamerism, on coated papers. The Chroma Optimizer reduces the difference in ink droplet height to form a flat and smooth ink layer. The result is evenly reflected light, deep blacks, and bright, saturated colors. The combination of Genuine Canon inks and paper provides superior performance and the Canon level quality you expect in your final print.