Just like the other HP 70  printheads, the C9406A regulates the flow of two colours within your printer, reducing the amount of consumables used by your inkjet printer. This Hewlett Packard C9406A covers the magenta and yellow, allowing for your continued production of the highest quality prints possible.The HP 70 magenta and yellow printhead rarely needs changing, so the purchase of this item works out very cheap per print. You can use the HP C9406A in many different printers, including the Designjet Z5400. A full list of compatible printers can be found on this page.