| 摘要 |
An image forming apparatus including: an image forming device for forming a toner image on an image bearing member by using a developer contained in a developing container; a density sensor for detecting a density of a detection toner image formed by the image forming device; a control device for controlling an amount of the developer to be supplied from a developer supplying container into the developing container in accordance with an output of the density sensor and a target value; a correcting device for correcting the output of the density sensor in accordance with an ambient environment; and a setting device for setting a value obtained by the correcting device as the target value.
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