HP 726 300-ml Matte Black DesignJet Ink Cartridge

Innovative Original HP inks deliver a unique combination of quality and resilience. You get consistently crisp, clear, accurate lines and vivid color—even true neutral grays—in fast-drying, smudge-resistant prints.

Present your professional best with the accurate, professional prints produced by Original HP inks. You get dark blacks, true neutral grays, and a wide range of vivid colors from plain paper to glossy media. Smooth gray area fills, fine grayscale transitions, and images with true neutral grays bring a new level of accuracy and professionalism to your work.

Original HP inks dry quickly and resist smudging, enabling fast print speeds and producing prints that can be handled right out of the printer. You get optimal results with HP media designed together with Original HP inks and the DesignJet printer—produce high-quality, resilient prints while keeping your productivity high.

With the trouble-free printing of Original HP supplies, avoid trial and error that costs you time. Original HP inks are designed and tested with the printer to provide consistent results. You get crisp, clear, accurate quality, every time you print.

Original HP inks are formulated from ultra-pure inks and are specifically designed together with HP printheads and your DesignJet printer. Original HP inks take the hassle out of getting the accurate, professional results you need, print after print, cartridge after cartridge.

Original HP inks and HP's broad portfolio of technical media have been designed together to do the job right. More than 80 tests may be conducted on the print attributes of the ink and media to ensure the highest-quality results possible. With HP media and Original HP inks—designed together to work better together—you get accuracy and consistency you can count on.

Original HP inks are formulated through a process of rigorous testing. Ink chemists typically design up to 1,000 prototype ink formulations that are subjected to hundreds of tests to see how the ink interacts with the cartridge, the printer, and the media. For example, all HP inks are subjected to more than 20 tests for purity to prevent problems that degrade image quality such as microscopic contaminants that can clog printhead nozzles.