HP 711 38-ml Black Designjet Ink Cartridge (CZ129A) for HP DesignJet T120 24-in Printer HP DesignJet T520 24-in Printer HP DesignJet T520 36-in PrinterHP DesignJet printheads help you respond quickly by providing quality speed and easy hassle-free printingHP 711 38-ml Black Designjet Ink Cartridge (CZ129A) for HP DesignJet T120 24-in Printer HP DesignJet T520 24-in Printer HP DesignJet T520 36-in PrinterHP DesignJet printheads help you respond quickly by providing quality speed and easy hassle-free printing