公开(公告)号：US06182961B2

公开(公告)日：2001-02-06

申请号：US09212643

申请日：1998-12-16

申请人： Stephen J. Wenth, Jr.

发明人： Stephen J. Wenth, Jr.

IPC分类号： B65H306

CPC分类号： B65H3/5261 ,  B65H2301/42324 ,  B65H2402/541 ,  B65H2403/42 ,  B65H2403/72 ,  B65H2555/23 ,  B65H2601/251

摘要： The disclosure relates to separating and feeding previously printed document sheets from a stack with reduced inter-sheet document image smearing using a retard-type sheet separator-feeder. For duplex documents, the intermittent drive system for the retard feeder drives the sheet being fed downstream out of the retard nip for only a short initial feeding distance which is only a minor portion of the document dimension, then reverse drives the sheet in the upstream direction for only a short reverse distance sufficient to eject all the sheets from the retard nip other then the one being fed out. Meanwhile a nudger system feeding sheets from the stack to the retard nip is disengaged. Then the feeder is driven in the downstream sheet feeding direction again, but for a much longer sheet feeding distance, Thus, the sheet being fed by the retard feeder may be fed out of the retard nip without duplex document image smearing against other sheets in the retard nip.

摘要翻译： 本公开涉及使用延迟型片材分离器给料器将先前打印的文件片材从堆叠中分离和输送到具有减少的片间文件图像涂抹。 对于双面文件，用于延迟送料器的间歇驱动系统仅将驱动下游的片材延伸出延迟压区，只有较短的初始进给距离，该距离只是原稿尺寸的一小部分，然后在上游方向上反向驱动纸张 只有短的反向距离足以从延迟压区喷出所有的纸张，然后再送出。 同时，从堆叠向延迟压区输送纸张的微动系统被分离。 然后，进料器再次沿着下游供纸方向被驱动，但是供纸距离要长得多。因此，由延迟进给器供给的纸张可以从延迟辊隙中送出，而不会在双面文档图像涂抹在其中的纸张上 延迟咬合