Image forming apparatus and sheet supply apparatus having plurality of sheet supply units
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United States of America Patent
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May 21, 2013
Grant Date -
Nov 1, 2012
app pub date -
Jul 10, 2012
filing date -
Jan 21, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An image forming apparatus which can prevent decrease in useful lives of components for air sheet feeding without bringing about throughput degradation when performing an image forming operation using a plurality of sheet supply units. When a sheet is fed from a first sheet supply unit having a fan that is driven so as to supply sheets, then a sheet is supplied from a second sheet supply unit, and then a sheet is supplied form the first sheet supply unit again, and in a case where a suspension time period over which no sheet is supplied from the first sheet supply unit is longer than a preparation time period from when driving of the fan is started to when the fan is brought into a driving state required to supply a sheet, driving of the fan is temporarily stopped.
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