Make a strong and professional impression with the HP 339 Black Original Ink Cartridges twin pack.HP's advanced technology gives you densely packed ink for text that will not feather or bleed on paper, delivering clear and sharp results.This enhanced HP black pigment ink is compatible with HP Photosmart 8450, 8150, 2710 and 2610 printers, HP OfficeJet 7410 and 7310 printers, and HP Deskjet 6840, 6540, 6520 and 5740 printers.