发明授权
US07639020B2 Potential sensor and image forming apparatus having potential sensor
失效
具有潜在传感器的潜在传感器和图像形成装置
- 专利标题： Potential sensor and image forming apparatus having potential sensor
- 专利标题（中）： 具有潜在传感器的潜在传感器和图像形成装置
-
申请号： US11924241申请日： 2007-10-25
-
公开(公告)号： US07639020B2公开(公告)日： 2009-12-29
- 发明人: Takashi Ushijima , Kaoru Noguchi , Atsushi Kandori , Yoshitaka Zaitsu , Kazuhiko Kato , Toshiyuki Ogawa , Futoshi Hirose
- 申请人： Takashi Ushijima , Kaoru Noguchi , Atsushi Kandori , Yoshitaka Zaitsu , Kazuhiko Kato , Toshiyuki Ogawa , Futoshi Hirose
- 申请人地址： JP 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： JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： JP2006-316355 20061122
- 主分类号： G01R29/12
- IPC分类号： G01R29/12 ; G03G15/00
摘要：
A potential sensor is provided in which the adhesion of toner particles to the potential sensor is reduced or prevented from occurring, reducing or preventing the occurrence of a situation that accurate detection cannot be performed. The potential sensor has a movable member, detecting electrodes formed on the movable member, a support which movably supports the movable member, a driving mechanism which drives the movable member, and a stationary member which supports the support. Between the movable member and the stationary member, a first gap is so formed as to make the movable member 101 movable. The first gap has a part that is not larger in width than the maximum size of toner particles when the movable member is not elastically deformed and is at a neutral position.