Image forming apparatus
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United States of America Patent
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Nov 22, 2016
Grant Date -
Mar 10, 2016
app pub date -
Nov 13, 2015
filing date -
Dec 20, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to an image forming apparatus that forms an image by consecutively superposing toner images that have been formed on a plurality of photosensitive drums, on an intermediate transfer member or a transfer medium. The image forming apparatus is made compact and operates at a low cost. Since a current supply member supplies a current in a rotational direction of an intermediate transfer belt, multiple first transfer portions do not need corresponding voltage sources. Even in the case where a charging member supplies a current, the potential of the intermediate transfer belt is maintained at a predetermined potential by a constant-voltage element connected to support rollers.
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