Sheet feeding device and image forming apparatus
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United States of America Patent
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Dec 1, 2015
Grant Date -
Jul 24, 2014
app pub date -
Jan 9, 2014
filing date -
Jan 18, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A sheet feeding device includes a sheet storage unit, a stacking unit, a raising unit, a sheet detection unit, an attachment detection unit, and a control unit. The sheet storage unit may be attached to and drawn out of an apparatus main body. The stacking unit is raised by the raising unit and is lowered when the sheet storage unit is drawn out. The attachment detection unit detects attachment of the sheet storage unit to the apparatus main body. The control unit determines whether an amount of sheets stacked on the stacking unit exceeds a predetermined amount based on detection results. If the sheet detection unit continues to detect sheets when the sheet storage unit goes from attached, to not attached, to attached to the apparatus main body, the control unit determines that the amount of sheets stacked on the stacking unit does not exceed the predetermined amount.
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