Products name:HP 21 Black Original Ink Cartridge

Model No.: 21

Compatible for: HP Deskjet 3910, deskjet 3930, deskjet 3940, printer/scanner/copier 1410 

Colour: BK

Cartridge's Status: Full 

Ink volume:18ML

Duty Cycle: Approx. 450 pages @ 5% average coverage 

Product Type: Ink Cartridge

Printing Techonology: Laser

Delivery time: 3-8 working days after payment received.

Delivery way: By sea/air/express courier

The HP 21 Black Original Ink Cartridges helps you maximize output so you can get the best from your HP printer. It works seamlessly with the HP printer drivers and delivers crisp, professional looking printouts with each use. On average, the HP printer cartridge pack offers up to 450 pages. It features quick-drying inks that do not streak, smear or blot. High-quality printing applications such as photos can be completed using this ink with excellent results. Further, these cartridges are remarkably easy to install. Simply open up the compartment on your printer and pop them into place. Included instructions walk you through the process carefully, making every step clear. Also, the software suite keeps you informed of the ink volume to help you reorder the necessary supplies in a timely manner and maintain productivity. This pack gives you everything that you need to keep using your HP printer productively.