The HP No. 45 black Inkjet print cartridge provides rich black printouts for professional-looking documents every time. The HP No. 45 is designed to work with plain papers and HP Inkjet specialty papers and transparency films. The HP No. 45 regular black Inkjet print cartridge provides quality, affordability and durability. It is ideal for frequent and large-volume printer users as a convenient, cost-effective choice. Specially developed HP black pigment ink delivers professional-quality results every time you print. The HP No. 45 cartridge is priced to deliver a competitive cost on every printed page. The HP No. 45 is designed to work together with HP printers and papers for results are always clear and sharp.