| 摘要 |
Disclosed is a color-tone controlling method and apparatus therefor, in which a desirably selected one of a plurality of color-tone plates of various colors such as red, green, blue, and so on is put onto a back surface of a color photosensitive medium, so that when a front surface of the color photosensitive medium is exposed to image carrying light, a part of light transmitted through the color photosensitive medium of the same color as that of the color-tone plate is reflected on the color-tone plate so as to re-expose the back surface of the color photosensitive medium.
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