发明授权
- 专利标题： Sheet feeding device, image forming apparatus, and image forming system
- 专利标题（中）： 片材进给装置，成像装置和成像系统
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申请号： US14567421申请日： 2014-12-11
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公开(公告)号： US09359158B2公开(公告)日： 2016-06-07
- 发明人: Yasunori Hino , Chikara Akata , Tomoki Tamate , Hideaki Takahashi , Munehisa Fuda , Toshihiro Okutsu , Takashi Fukumoto , Yasuo Niikura , Masaki Ishizaki , Kiyotake Nakamura , Hidetoshi Kojima , Hisayoshi Sugawara , Kazunori Konno , Tatsuya Sugawara , Kohjiroh Haga , Masato Hashimoto
- 申请人： Yasunori Hino , Chikara Akata , Tomoki Tamate , Hideaki Takahashi , Munehisa Fuda , Toshihiro Okutsu , Takashi Fukumoto , Yasuo Niikura , Masaki Ishizaki , Kiyotake Nakamura , Hidetoshi Kojima , Hisayoshi Sugawara , Kazunori Konno , Tatsuya Sugawara , Kohjiroh Haga , Masato Hashimoto
- 申请人地址： JP Tokyo
- 专利权人： RICOH COMPANY, LIMITED
- 当前专利权人： RICOH COMPANY, LIMITED
- 当前专利权人地址： JP Tokyo
- 代理机构： Harness, Dickey & Pierce PLC
- 优先权： JP2013-259325 20131216; JP2014-187318 20140916
- 主分类号： B65H1/04
- IPC分类号： B65H1/04 ; B65H7/14 ; B65H3/14 ; B65H1/14 ; B65H7/16 ; B65H7/20 ; B65H1/26 ; B65H3/12 ; B65H3/48 ; B65H7/04
摘要：
A sheet feeding device includes: a sheet stacking member; an air blowing unit configured to blow air onto the sheet bundle placed on the sheet stacking member to suspend multiple sheets of the sheet bundle; a lifting/lowering unit configured to lift/lower the sheet stacking member; an optical reflection sensor configured to detect a suspended sheet suspended by the air blowing unit; and a control unit configured to control the lifting/lowering unit based on an output value of the optical reflection sensor. The optical reflection sensor is configured to be capable of detecting an area corresponding to multiple sheets in a sheet suspension zone extending between a non-suspended sheet bundle and a conveying member configured to convey an uppermost sheet of the multiple suspended sheets. The non-suspended sheet bundle is made up of sheets not suspended during a period when air is blown by the air blowing unit.