we are pleased to announce our photo paper a4s-s001is possible to be printed with hp indigo press. the features of type a4s-s001are pp synthetic paper made, 153gsm (weight), 0.22mm (thickness), tear-proof, water-proof, no releasing chemical and medicine smell, without turn-yellowish for long term exposure in air or under halogen lighting, meet environmental protection. beside hp indigo, a4s-s001 also had test with hp clj 2550/3700/4600/5500/9500 for photographic printing.