| 摘要 |
PURPOSE:To realize a number of copy sheets for the ordinary paper with a sheet of original form and perform to reuse, by putting an original onto an original form made of a heat magnetic writing material and applying the heat energy to the original under a vertical magnetic field to form a latent image. CONSTITUTION:An original 1 is put on a thin film 2 made of a heat magnetic writing material, and a vertical magnetic field 5 is applied to an original form 3 along with irradiation of a heat ray lamp 4. As a result, a black print part 1' of the original 1 is inverted among the magnetic domains of the film 2 to form latent images in parallel in the same direction as the field 5. Then a toner 6 having the magnetic properties is put close to these latent images, and the toner 6 is magnetically attracted to the latent images. Thus these latent images are turned into appeared images. Then the plate 3 set with its upper face down, and a copy paper 8 is put on the lower face with application of the field 5. As a result, the magnetic domain of the toner 6 is inverted to be shifted to the paper 8 to perform the development. In such way, a desired number of copy sheets is obtained with a sheet of original form. Furthermore the original form is repetitively available. |
