Epson's high yield indivdual ink cartridges are for high print volume business users. Epson DURABrite Ultra ink - no smudging, no fading, simply perfect prints whatever you're printing. Epson's DURABrite Ultra ink has an exclusive technology where each pigment particle is coated in resin. This makes the ink water-, smudge-, and fade resistant on all paper types, for beautiful, durable results.