| 摘要 |
An image forming apparatus which forms an image on an image carrier along with rotation of a developing sleeve that carries a toner and carrier contained in a two-component developer, comprises: forming unit configured to form a density detection toner image on the image carrier using the toner; detection unit configured to detect a density of the density detection toner image formed; prediction unit configured to predict a toner charge amount in the two-component developer; correction unit configured to correct the toner charge amount in the two-component developer using a value obtained from a relationship between the toner charge amount predicted by the prediction unit and the density of the toner image that is detected by the detection unit; and control unit configured, when forming the density detection toner image by the forming unit, to control to increase a development efficiency, compared to image formation based on image data.
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