发明授权
US09182704B2 Developer conveyance device and image forming apparatus having a pump to move the developer in a relationship with the developer contained in a reservoir
有权
显影剂输送装置和图像形成装置具有泵，以使显影剂与包含在储存器中的显影剂关系地移动
- 专利标题： Developer conveyance device and image forming apparatus having a pump to move the developer in a relationship with the developer contained in a reservoir
- 专利标题（中）： 显影剂输送装置和图像形成装置具有泵，以使显影剂与包含在储存器中的显影剂关系地移动
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申请号： US14066968申请日： 2013-10-30
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公开(公告)号： US09182704B2公开(公告)日： 2015-11-10
- 发明人: Junichi Matsumoto , Kiyonori Tsuda , Nobuo Takami , Yutaka Takahashi , Kentaro Mikuniya
- 申请人： Junichi Matsumoto , Kiyonori Tsuda , Nobuo Takami , Yutaka Takahashi , Kentaro Mikuniya
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2012-251350 20121115; JP2013-169834 20130819
- 主分类号： G03G15/08
- IPC分类号： G03G15/08
摘要：
A developer conveyance device includes a developer reservoir for containing developer, and a positive-displacement pump to alternately generate positive pressure and negative pressure by varying a volume of space therein to transport developer from the developer reservoir to a destination. When Qp represents a volume of developer moved by a single pumping action of the pump, calculated by multiplying a maximum flow amount of the pump per unit time by an operation time of the pump; Qd represents a volume of developer contained in the developer reservoir; and Qe represents a volume of developer present in a virtual columnar space defined by vertically raising the developer outlet to a level of developer contained in the developer reservoir, either Qp>Qd or Qp>Qe is satisfied.
公开/授权文献
- US20140133889A1 DEVELOPER CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS 公开/授权日：2014-05-15
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