| 摘要 |
PURPOSE:To preclude a defect in separation, retransfer, etc., at the time of both-surface copying or multiple copying by determining the order of 1st latent image formation and next latent image formation according to the difference of a latent image. CONSTITUTION:When plural images are formed on one transfer material 18, two documents A and B are placed, their images are stored in a document storage device 31, and the image ratio of both images is calculated. Assuming that the document B has a high ratio, the electrostatically charged surface of a photosensitive body 10 is exposed to the image B stored in the storage device 31 by an image writing device 32 like a laser oscillator. Then the electrostatically charged surface of the photosensitive body 10 is exposed to the document A having a small image ratio as well as the 1st-time image formation to form an image similarly, and the transfer material is carried out of the device. Consequently, the defect in separation, retransfer, etc., can be evaded. |
