The Epson UltraChrome XD2 T40 is a black pigment-based ink cartridge designed for professional inkjet printing. With a volume of 50ml, this standard-yield cartridge provides the necessary supply for creating sharp, high-contrast documents and technical drawings. This ink is specifically engineered for use in the SureColor SC-T3100, SC-T3100N, SC-T5100, SC-T5100N, and their multi-function variants, the SC-T3100M and SC-T5100M. Its pigment composition ensures that your prints maintain a professional look, making it a reliable choice for architects and engineers who need clear, smudge-resistant lines on their blueprints.