HP 45 Black Inkjet Print Cartridges enable true 600 x 600 dpi resolution and feature pigment ink technology that delivers the highest possible quality on HP Deskjet, Photosmart, Designjet and Officejet printers, especially with HP papers and films.nnFeaturesnn- Ideal for business or home users who want the flexibility of printing wherever they go Built to deliver optimum quality with rugged dependability For use with HP Deskjet Portable, HP Deskjet 310, 320, 340 and HP Deskwriter 310, 320 and 340 printersn- High-density pigmented ink produces sharp black text and graphics. Cartridge body with easy-to-view ink level indicator. Integrated printhead and ink supply. Easy drop-in/snap-out action for quick, easy and clean replacement.n- Use with many different HP Deskjet printers. Use with HP Designjet 700 Printer. Use with HP Photosmart 1000 Photo-direct Inkjet Printer. Use with HP Officejets Pro 1150c, 1170c, 1175c.