IMAGE FORMING APPARATUS
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United States of America Patent
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app pub date -
May 15, 2017
filing date -
Jul 6, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An image forming apparatus includes a developer container, a development device, a developer replenishment device and a control part. The control part obtains a replenishment amount (X) of the developer replenished by the developer replenishment device from a last-time replenishment until a this-time replenishment and a predicted consumption (Y) of the developer, calculated based on the image data output from the last-time replenishment until the this-time replenishment, and informs abnormality when an absolute value of a difference of the replenishment amount (X) and the predicted consumption (Y) is larger than a threshold value.
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