| 摘要 |
An electrophotographic copying method of a color separated image superposing transfer-printing system capable of selectively performing a full color copying operation and a single color copying operation. The photosensitive member is exposed to an optical image of an original without compensating for the quantity of light of the optical image both in the full color copying mode and in the single color copying mode, and the processing speeds at which process steps for performing copying are followed are changed in such a manner that the photosensitive member is subjected to an exposure for each of the two modes. Changing the speeds is effected automatically in conjunction with the selection of one of the two modes.
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