Epson T127420 (127) Extra High-Yield Ink, Yellow Epson T127420 (127) Extra High-Yield Ink, Yellow DURABrite? Ultra inks offer smudge-, water- and fade-resistance for superior image quality and durable prints. Ideal for double-sided printing; inks will not bleed through. SmartValve Control Technology employs a pressure-activiated valve to smoothly and rapidly deliver ink to the printheads at variable rates.