Epson Black Inkjet Cartridge. For use in WP4000/4500 machines. Page Yield - up to 1200 pages. OEM Ref - T703140. Epson is a leader in the printing field and it is no accident that they have become one of the best known and best loved printing brands in the world. They have achieved this through providing consistently brilliant products that have been helping you print for years. The WP4000 Black Inkjet Cartridge keeps up that heritage, providing you with documents that are crisp and clear. Printing is quick and completely without mistakes, making this cartridge perfect for home or small office use.