HP C5019A No 84 Black Printhead to fit Designjet 10ps/20/ps/50ps/130. Page life - 485. Hewlett Packard DesignJet series is perfect for ensuring that all of your printing is done at the highest level, making it ideal for use with complex graphics or images. Each No 84 printhead is designed to provide you with the sharpest results, for eye catching posters and photographs. Colours are kept strictly separate, making sure that there is never any bleed or murkiness in your image. This helps to make colours stand out and adds vibrancy to your prints.