A method and apparatus implementing the method for implementing electronic mail services. In this apparatus, when paper sheets are folded to form printed matter with an appearance of a book, a plurality of print page data can be printed in each print area. This method is effective particularly in the production of array substrates for the flat-panel display device which needs aluminum fine lines to meet the requirement for finer pixels and larger display area. The method of the present invention can control the high carrier mobility direction of organic semiconductor crystals to have ordered orientation in the film, enhance contacts between crystals, improve mechanical strength and micro-machining property of the film, and give a high carrier mobility. Means for electrically adjusting the amount of spacing between the jaws when the end effector is in the closed position.