Original HP ink cartridge is formulated to consistently produce professional-quality documents at a great value. Count on durable prints from a cartridge specially designed to work with your Hewlett-Packard Officejet 6230, 6812, 6815, 6820, 6825, 6830 and 6835. HP proprietary inks prevent corrosion and clogging of the printhead - ensuring the best prints. It generates durable prints that resist water and last for decades. Highlight pages right away without worrying about smears. Cartridge yields approximately 400 pages.