发明名称 SHEET FEEDING APPARATUS WITH MECHANISM FOR DETECTING SHEET FEEDING STATE AND SHEET FEEDING METHOD
摘要 A sheet feeding apparatus includes first and second sheet sensors provided in order from upstream to downstream sides in feeding direction on a paper feed path, sheet conveyor roller sets arranged along the path, and a roller controller individually controlling groups of rollers on the upstream and downstream sides of the first sheet sensor, in response to a change in values of output signals from first and second sheet sensors. The roller controller includes an overlapped feeding determining device outputting a determination signal assuming a first value when overlapped feeding occurs and a second value otherwise, in response to the change in values of the output signals from the sensors, an overlapped feeding eliminating device eliminating overlapped feeding by controlling the roller controller upon receiving the determination signal of the first value, and a conveyor roller stopping device stopping the sheet conveyor rollers if the overlapped feeding eliminating process should fail.
申请公布号 US2009189339(A1) 申请公布日期 2009.07.30
申请号 US20090356111 申请日期 2009.01.20
申请人 OHISHI MASATSUGU;KIMURA MASAHARU;KATSURA NORICHIKA;ASAKAWA MASAYA;FUKADA YASUAKI 发明人 OHISHI MASATSUGU;KIMURA MASAHARU;KATSURA NORICHIKA;ASAKAWA MASAYA;FUKADA YASUAKI
分类号 B65H7/12 主分类号 B65H7/12
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