A reusable printing form comprises a printing area having a metal oxide surface that is treated with amphiphilic organic compound having a polar region with an acidic character. Independent claims are also included for: (a) a printing unit or printing machine having at least reusable printing form; (b) a method for imaging a reusable printing form comprising producing an image on the printing area by selectively inputting energy on a dot-by-dot basis, and erasing the image through large-surface input of energy subsequent to printing on a printing substrate; and (c) a method for creating an imageable printing area comprising treating the metal oxide surface with amphiphilic organic compound(s) having a polar region with an acidic character.
