| 摘要 |
PURPOSE:To simultaneously calculate ink quantity data of ink fountains of a printer by using image data to be used for exposure of a printing plate- forming apparatus. CONSTITUTION:A printing plate-forming apparatus comprises an exposure unit 10 for directly exposing a surface of a plate material 13 based on bit map data 6 to generate a printing plate, a printing element area calculator 50 for virtually dividing the surface of the material 13 to set inspecting areas, integrating number of exposure data of the area from the data 6 to calculate exposure data of each inspecting area, and an area ratio calculator 60 for obtaining an area ratio of the element area of each inspecting area based on the integrated exposure data as ink quantity data. |
