| 摘要 |
PURPOSE:To suppress the disorder of an image in image formation as much as possible by providing a position where a photosensitive body is exposed to information light oppositely to a transfer roller which is attachable to and detachable from the photosensitive body when the transfer roller is brought into contact. CONSTITUTION:An image forming device which has the transfer roller 9 which is attachable to and detachable from the photosensitive drum is provided with an information light exposure part 2 oppositely to the transfer roller 9 almost at 180 deg.. Therefore, even if the transfer roller comes into contact during exposure to generate a shock, there is such effect that the image is not disordered. As the diameter of the photosensitive drum is smaller and smaller, the possibility that the transfer roller 9 contacts and leaves the photosensitive drum during the exposure to the information light is higher and higher when transfer paper of small area is used, so the effect is increased.
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