发明授权
- 专利标题: Paper feed control device
- 专利标题(中): 送纸控制装置
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申请号: US651659申请日: 1984-09-18
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公开(公告)号: US4540170A公开(公告)日: 1985-09-10
- 发明人: Shunichi Masuda , Katsushi Furuichi , Naomi Takahata
- 申请人: Shunichi Masuda , Katsushi Furuichi , Naomi Takahata
- 申请人地址: JPX Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX56-64936 19810427
- 主分类号: B41J11/42
- IPC分类号: B41J11/42 ; B65H5/06 ; B65H7/06 ; B65H7/14 ; G03B27/62 ; B65H7/02
摘要:
The invention provides a paper feed control device having paper feed rollers for feeding a paper sheet such as an original to a predetermined position, a first sensor for detecting the paper sheet, a second sensor for detecting leading and trailing ends of the paper sheet, a microcomputer for controlling the rollers in response to the outputs signals from the sensors, and a compensating circuit for compensating the level of the output signal from the second sensor which is maintained in a non-detecting state until the paper sheet completely passes through the second sensor. Therefore, even if punched holes for filing are formed on the paper sheet, the punched hole may not be detected as the trailing end of the paper sheet, resulting in proper feeding.
公开/授权文献
- US5598652A Lamp with changeable display base 公开/授权日:1997-02-04
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