The Epson T47A7 Grey Ink Cartridge (50 ml) uses pigment-based UltraChrome PRO10 ink—designed to deliver smooth gradations, deep tonality, and rich black tones. Ideal for high-quality grayscale or fine-art printing on Epson SureColor SC-P900. Its fast-drying and smudge-resistant formula ensures consistent results and long-lasting archival prints