| 摘要 |
A printing simulation method and apparatus, a picture color tone controlling method and method for a printing press and a printing press are disclosed by which, before printing is carried out, the color tone can be confirmed readily so that a demand for a print color tone can be satisfied precisely while appearance of broke is suppressed. A printing characteristic of a printing press and data of a printing picture to be printed by the printing press are acquired, and an image of the printing picture obtained by simulating color by the printing press with the data of the printing picture converted using the printing characteristic of the printing press is displayed on a monitor screen. Then, while a sample of the printing picture is referred to, correction of the color state of the picture displayed on the monitor screen with respect to the density of the ink color upon printing is carried out so that the color tone of the picture displayed on the monitor screen approaches the color tone of the sample picture. A target density is set in response to the correction, and printing is carried out while the ink supplying state by an ink supplying apparatus for each color is controlled so that the actual density of the color of a result of printing approaches the target density value.
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