Hewlett Packard: G&G Brand Compatible Replacement HP Black C4840A Ink Cartridge

This ink cartridges provide laser-quality black print on high-quality paper. Why pay more? It includes a ''smart chip''; which monitors printing quality and automatically warns you when ink is low. Compatible with the following HP models: DesignJet ColorPro CAD / ColorPro GA ISO 9001 certified. Quality and satisfaction guaranteed! Best replacement for HP 10 (actual product may look slightly different than shown in picture.)