| 摘要 |
PURPOSE:To perform proof and the preparation of a lithographic press plate by forming an image data at every color using the digital image data corresponding to the image data of each color and forming a dot image at every color according to an electrophotographic process. CONSTITUTION:When an output apparatus 8 of proof and lithography outputs proof, according to an electrophotographic process exposing an electrophotographic recording medium formed by laminating at least an electrode and a photoconductive layer member and equipped with a white surface to light modulated by printing image data, developing toners of respective colors are successively used according to printing image data to form dot images at every respective colors. In order to output lithography, dot images are formed to the electrophotographic recording medium by individually using oleophilic developing toners. Therefore, proof work or the preparation of a lithographic press plate is advanced by electrical signal processing without interposing a photographic film during a process and the proof work and the preparation of the lithographic press plate are performed by the same apparatus. |
