| 摘要 |
An image forming apparatus capable of detecting the density of an image patter with a sufficient accuracy irrespective of the color and/or the density of the image pattern, making it possible to carry out color stabilizing control of an output image with high accuracy. An image pattern formed on a transfer material is read by an optical sensor, and based on information on the image pattern, image forming conditions are controlled by a controller. In accordance with the color and the density of the image pattern, an accumulation time of the optical sensor is set.
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