| 摘要 |
An image forming apparatus provided with a first projection optical system for forming an intermediate image of a desired final image, a second projection optical system for slit scanning the intermediate image to reconstruct the intermediate image, by off-axis imaging, on a light-receiving member, and optical device for co-ordinating the directions of the principal rays from the intermediate image in a slit scanning sectional plane with that of principal rays of the second projection optical system.
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