HP 70 Printheads are dual-color, long-life consumable components engineered for HP DesignJet large-format graphics plotters and professional Photosmart Pro desktop photo printers. They utilize HP Thermal Inkjet technology, integrating 2,112 printhead nozzles per unit with a 4-picoliter ink drop size to deliver high-definition, museum-quality prints using pigment-based inks.