Genuine Ink HP DesignJet 500 800 815 hp / No. 10 + 82 BK/C/M/Y Cartridges | eBay
Amazon.com: Compatible for HP11 C4810A C4811A C4812A C4813A Printhead for HP Designjet 500 & 500 Plus Series Printer by Getu Office, 4-Pack (BK+C+M+Y)。 : Office Products