Make an impression with clear, easily readable drawings. To help reduce downtime and improve productivity-and protect your investment-Original HP inks are designed with your HP DesignJet printer as an optimized printing system. Choose from two cartridge sizes. Enable more unattended printing with high-capacity 300-ml ink cartridges. Or save using more affordable 130-ml ink cartridges. And you can take advantage of free, convenient ink cartridge return and recycling.