| 摘要 |
PURPOSE:To make it possible to attain the certainty of printing and the protection of data, by providing an opaque or highly reflective part for detecting paper at least to a part on the surface of a film substrate having high transmissivity to light. CONSTITUTION:OHP paper is formed by providing a light detection layer 2 on a film substrate comprising a polyester film having high transmissivity so as to correspond to the right or left end of the OHP paper on the surface opposite to a printing surface. This light direction layer 2 is formed by fixing an opaque reflective layer 3 comprising white paper 3 to the upper surface of the film substrate 1 by a sticking layer 4 comprising an acrylic sticking agent in a freely releasable manner. By irradiating the light detection layer 2 and detecting the transmission and reflection thereof, it is confirmed whether printing paper is set in a predetermined manner and the certainty of printing, the protection of data and the protection of machinery can be achieved. The light detection layer 2 is removed if necessary after a manuscript is formed. |
