发明名称 SHEET FEEDER AND IMAGE FORMING DEVICE
摘要 PROBLEM TO BE SOLVED: To surely separate and feed sheets on a bottom plate one by one to the last sheet. SOLUTION: The frictional resistance to be applied to the sheets S on the bottom plate 1 is determined on the sum of the frictional resistance Fc by a first frictional resistance applying means 9, and the frictional resistance Fd by second frictional resistance applying means 10, 11. The influence of the reaction force from the feed roller 8 which is changed corresponding to the number of sheets S on the bottom plate 1 is reduced by moderately determining the frictional resistance Fc of the first frictional resistance applying means 9 receiving the reaction force from a feed roller 8, which is changed corresponding the change of the number of sheets S on the bottom plate 1, and the frictional resistance Fc+Fd to be applied to the sheets S can be determined to a desired value by the second frictional resistance applying means 10, 11 which receive small pressure force of a bottom plate energizing member 7 as they are mounted near a center of the rotation of the bottom plate 1, and in accompany therewith, which are hardly affected by the reaction force from the feed roller 8. Whereby the sheets S on the bottom plate 1 can be surely separated and fed to the last sheet.
申请公布号 JP2002326723(A) 申请公布日期 2002.11.12
申请号 JP20010089079 申请日期 2001.03.27
申请人 RICOH CO LTD 发明人 HIRATANI KENJI
分类号 B65H1/04;B65H1/14;B65H3/54;(IPC1-7):B65H1/04 主分类号 B65H1/04
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