| 摘要 |
An image forming apparatus, having a submodule that causes non-uniformity in density in a slow-scanning direction in accordance with rotation, includes a correction image forming unit that forms an image for density correction, in cooperation with the submodule, a density detector that detects a density of the image for density correction, a correction data generation unit that generates correction data to correct a density distribution based on a density distribution of the image for density correction in a slow-scanning direction detected by the density detector, a phase detector that detects a phase of the submodule, and a mark image forming unit that forms a mark image in synchronization with the phase of the submodule detected by the phase detector, in the image for density correction formed by the correction image forming unit.
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