| 摘要 |
In an image forming apparatus, when photosensitive members 4Y, 4M, 4C are in contact with a transfer belt, then color adjustment is performed. When the photosensitive members 4Y, 4M, 4C are not in contact with a transfer belt, i.e., only a photosensitive member 4Bk is in contact with the transfer belt, then only black adjustment is performed.
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