| 摘要 |
An exposure system includes a plurality of kinds of light emitting element arrays, each formed of a plurality of light emitting elements which are arranged in one row in one direction, which are arranged substantially normal to said one direction and emits light in different wavelength ranges, and a sub-scanning mechanism which holds a color photosensitive material in a position where the light from each of the light emitting element arrays is projected, and moves the color photosensitive material and the light emitting element arrays relatively to each other in the one direction. In the exposure system at least one of the plurality of kinds of light emitting element arrays is a multi-layered type light emitting element array or the light emitting area of the light emitting element is nonuniform between at least two kinds of light emitting element arrays.
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