Sheet feeding apparatus and image forming apparatus
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United States of America Patent
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Apr 6, 2010
Grant Date -
Nov 29, 2007
app pub date -
Mar 5, 2007
filing date -
Apr 3, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided an apparatus provided with a tray which goes up and down with sheet stack being supported, a pickup roller which feeds the sheet on the tray a first detecting sensor which detects a object placed on the tray other than the sheets to be fed by the pickup roller, as the tray goes up.
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