Sheet feeding or delivering – Feeding and delivering – Separator and conveyor
Patent
1992-07-02
1994-07-26
Dayoan, D. Glenn
Sheet feeding or delivering
Feeding and delivering
Separator and conveyor
271225, 271233, 271265, 271266, B65H 522
Patent
active
053322053
ABSTRACT:
An automatic document feeder installed on a copying machine. This document feeder is constructed such that one reversible motor provides the drive power for all of drive parts of the document feeder, that is, a document feeding part, a document conveying part and a document recovering part, thus substantially reducing the manufacturing cost of the feeder. The document conveyor belt, on which a document to be copied is closely laid, moves in the forward and reversed direction, thereby causing the document to be exactly set on a reference copying position of a contact glass of the copying machine and, in this respect, improving the operational efficiency of the automatic document feeder. The present invention also provides a control circuit for automatically controlling such an automatic document feeder. The circuit comprises a microprocessor useful for efficiently controlling the operations of the document feeder even in the case of feeding of documents having different sizes and in the case of addition of other operational functions to the document feeder. Furthermore, this document feeder is provided with a document separating belt, which selectively moves and closely contacts with a document separating roller, thus improving the document separating efficiency and lengthening the using life of the document feeding part.
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Chang Seung M.
Chung Jae H.
Joo Dong S.
Kwon Young J.
Park Young S.
Dayoan D. Glenn
Druzbick Carol Lynn
Sindo Ricoh Co., Ltd.
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