| 摘要 |
PURPOSE:To obtain a stable image by removing the density irregularity of an image generated by the difference of the recording position of the image. CONSTITUTION:A black solid image is formed and the density values at a plurality of the points of the formed image are read from a CCD line sensor 8 to be measured and the level of an input signal is corrected so as to make the density of the image uniform and density irregularity is removed on the basis of this correction data. |
