Image forming apparatus detecting fog density
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United States of America Patent
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May 24, 2022
Grant Date -
Jan 28, 2021
app pub date -
Jul 21, 2020
filing date -
Jul 22, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
An image forming apparatus includes an image bearing member, a developing member, a controller configured to carry out switching control between a first state in which the developing member is caused to act on the image bearing member and a second state in which the developing member is not caused to act on the image bearing member, a transfer member, and a detector configured to read density information of the recording material. The controller detects a fog density on the basis of a difference in density information between a fog non-occurrence region of a non-image region of the recording material in the second state and a fog occurable region of the non-image region of the recording material in the first state.
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