This HP 26 Large Black Ink Cartridge works flawlessly with your HP Printer. The HP 26 Black Inkjet Cartridge contains HP proprietary black ink, producing high-quality, water-resistant black text & graphics. They feature genuine HP engineered ink that is specially formulated. The HP 26 is suitable for use in the HP400, 420, 500, 520, 540, 550 & 560 Printers, & is ideal for home & small businesses who want professional quality prints. * Page yield 794 at 5% coverage * Inkjet Please note this product is delivered direct from our supplier & may take a little longer to arrive.