Canon's 5-Color ink set (cyan, magenta, yellow, black, matte black) found in the imagePROGRAF iPF770 printer is ideal for technical applications. This ink technology utilizes four highly colorfast dye inks for producing bold, expressive color, plus two channels of pigment matte black ink for printing precise lines, smooth curves and small text on technical and office documents. Included is a reformulated magenta ink that helps produce a wider color gamut in the red and orange spectrums, compared to previous models. Canon inks provide superb adhesion to media, scratch and marker resistance and help ensure minimal "bleeding" between colors and text. Even small text printed on colored backgrounds or on uncoated technical papers is crisp and legible on an imagePROGRAF printer.