Image forming apparatus with intermediate toner transfer medium, control method therefor, and storage medium storing control program therefor
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United States of America Patent
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Jul 12, 2016
Grant Date -
Oct 1, 2015
app pub date -
Jun 16, 2015
filing date -
Apr 27, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An image forming apparatus that is capable of reducing velocity fluctuation due to variation of friction torque between an image bearing member and an intermediate transfer medium depending on a toner image. An exposure unit forms a latent image on the image bearing member rotated by a first drive unit. A development unit develops the latent image to form a toner image. A primary transfer unit transfers the toner image to an intermediate transfer medium rotated by a second drive unit. A secondary transfer unit transfers the toner image to a sheet. A control unit controls the drive units so that a peripheral velocity difference between the image bearing member and the intermediate transfer medium becomes a first value at starting, and controls so that the peripheral velocity difference becomes a second value larger than the first value when minute toner reaches the position of the primary transfer unit.
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