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Invention Grant
US07690650B2 Sheet transporting device, and automatic document feeder and image forming apparatus provided with the same 有权
纸张输送装置，以及自动送稿器和具有该纸张输送装置的图像形成装置

Sheet transporting device, and automatic document feeder and image forming apparatus provided with the same
Abstract:
A sheet transporting device including: a sheet feeding section that feeds sheets to a transporting path; a pair of upstream transporting rollers and a pair of downstream transporting rollers arranged with a predetermined space; a double feed detecting section that detects a length of a double feed portion; a determining section that determines whether the length of the double feed portion is shorter than the predetermined space or not; and a transport control section that controls the drives of the upstream transporting rollers and the downstream transporting rollers, wherein the transport control section controls speeds of the upstream transporting rollers and the downstream transporting rollers so as to separate the delaying sheet from the preceding sheet of the overlapped sheets, in a case where the determining section determines that the length of the double feed portion is shorter than the predetermined space.
Abstract(Chinese):

一种纸张传送装置，包括：送纸部，将片材送入传送路径; 一对上游输送辊和一对以预定空间布置的下游输送辊; 双重进给检测部，其检测双重进给部的长度; 确定部分，其确定双馈送部分的长度是否短于预定空间; 以及输送控制部，其控制上游输送辊和下游输送辊的驱动，其中，所述输送控制部控制所述上游输送辊和所述下游输送辊的速度，以将所述延迟片与所述上游输送辊 在确定部确定双馈送部分的长度短于预定空间的情况下，重叠片材。

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