Designed for several large format Hewlett Packard printers, like the DesignJet 210, each cartridge in the 712 range offers incredible results. The standard capacity black cartridge from this range, the 3ED70A, contains 38ml of some of the best quality ink HP have ever produced.You can rely upon the genuine Hewlett Packard 712 black ink cartridge to print in a quality that alternative cartridges cannot. The pigment-based black ink within this 3ED70A unit is ideal for larger artwork or signs that will be exposed to UV light and last for an extended period.