Keep your creative and technical projects running at full speed with the HP 712 80ml Black DesignJet Ink Cartridge — the professionalgrade ink solution designed for those who refuse to compromise on quality. Whether you're producing detailed architectural blueprints, sharp engineering drawings, or bold graphic designs, this highcapacity black ink cartridge delivers the crisp, deep, and consistent output your work demands. No more frustrating print interruptions — the generous 80ml volume means fewer cartridge changes and more time focused on what matters most.