The prints are quickly smudge-proof. Only with full-surface photo prints does it take a little time for all the ink to dry. However, this is also due to the paper used. Text is smudge-proof after about one minute.
But it is not waterproof if you want to print a map for diving ;-)

On foils, unfortunately, not even after days. In addition, fading or drop formation occurs during drying, which makes printouts unusable.