HP 301 Black Ink Cartridge. For use in Deskjet 1000, 2050, 3000 and 3050 printers. Approximate page yield: 190. OEM: CH561EE. A product which has been primarily designed in order to compliment your appliance, this superb cartridge delivers vibrant, bold images and text documents and ensures professional, eye catching results from the very first page to the last. There is no denying their expertise in this field, but the fact that HP has developed over 100 new inks, including this one, in the last twenty years speaks volumes. This product boasts an approximate page yield of 190.