Black T6181 Extra High Capacity Ink Cartridge (8000 pages) for Epson B500,B510DN Printers. T6181 black ink cartridge 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.