| 摘要 |
PURPOSE:To accurately and automatically align a manuscript by writing an image by tuilizing the change of transmissivity becoming optically transparent at the first temp. and becoming optically opaque at the second temp. and showing black when the transmissivity of a thermochromic material is max. and showing white when said transmissivity is min. to obtain such a state that a black image is written on a white surface. CONSTITUTION:A heating roller 7 set to the first temp, that is, temp. making the transmissivity of a thermochromic film material max. is brought into contact with a thermochromic film under pressure and the thermochromic material becomes transparent and the film becomes black. When the thermochromic film is moved in an A-direction, the black thermochromic film wherein an image is erased is positioned at the place of a writing thermal head 6. Herein, the writing thermal head 6 writes an image on the basis of the data from a word processor. At this time, since the heating roller 7 is set to the second temp, the thermochromic film is lowered in transmissivity by the writing of an image to become cloudy. |
