Your matte black channel is running thin and the text on that A1 poster is looking grey instead of solid. You've got a deadline and you don't have time to source a 'near-match' from an unknown seller. This is Epson's own UltraChrome XD matte black pigment ink, 110ml, made for the T3000, T3200, T5000, T5200, T5200D, T7000, T7200, and T7200D. You load it, the blacks go dense and even, and your text reads crisp at arm's length. Add to cart so you've got a backup bottle in the drawer before the next signage job lands