HP 728B 300ml Matte Black DesignJet Ink Cartridge
The HP 728B 300ml Matte Black DesignJet Ink Cartridge (part number 3WX30A) is designed to meet the demands of high-volume large-format printing environments. Formulated as a pigment-based matte black ink, it delivers deep, consistent black tones and excellent durability — making it ideal for plans, renderings, architectural drawings, GIS maps, signage and other professional-grade output. As listed on HP India’s official site, this cartridge supports millions of ink drops and is engineered for fade-resistant performance. Key advantages: High capacity (300 ml) ensures fewer interruptions and lower cost per print for prolific users. Matte black finish produces crisp legibility, minimal glare and professional presentati...