Image forming apparatus
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United States of America Patent
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Apr 7, 2015
Grant Date -
Apr 17, 2014
app pub date -
Oct 10, 2013
filing date -
Oct 16, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A control unit is provided which controls at least one of a first power supply unit (a secondary transfer power supply connected to a secondary transfer roller) and a second power supply unit (high-voltage power supplies connected to a conductive brush and a conductive roller) so that a current supplied to a primary transfer region from a beginning of primary transfer until a beginning of secondary transfer has a magnitude larger than a magnitude of a current supplied to the primary transfer region from a beginning of image formation until the beginning of the primary transfer.
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