Canon CLI-42Y - 13 ml - yellow - original - ink tank - for PIXMA PRO-100, PRO-100S; PIXUS PRO-100. This CLI-42 yellow ink delivers improved color, a wider color gamut and better color fastness. With these individual ink tanks you can reduce waste and save you money by only replacing the color that runs out. Print with genuine Canon ink and photo paper to achieve optimum results.