发明授权
- 专利标题： Powder conveyance device, toner conveyance device, process cartridge and image forming apparatus
- 专利标题（中）： 粉末输送装置，调色剂输送装置，处理盒和成像装置
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申请号： US11967635申请日： 2007-12-31
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公开(公告)号： US07890044B2公开(公告)日： 2011-02-15
- 发明人: Yoshiyuki Shimizu , Kenzo Tatsumi , Yoshihiro Kawakami , Tomohiro Kubota , Koji Kato , Hirobumi Ooyoshi , Tomofumi Yoshida
- 申请人： Yoshiyuki Shimizu , Kenzo Tatsumi , Yoshihiro Kawakami , Tomohiro Kubota , Koji Kato , Hirobumi Ooyoshi , Tomofumi Yoshida
- 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, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2007-007955 20070117
- 主分类号： G03G21/00
- IPC分类号： G03G21/00
摘要：
A powder conveyance device capable of removing toner (powder) stuck to a conveyor belt easily and reliably comprises a powder conveyor belt having a plurality of concavo-convex portions formed continuously on a conveyance surface thereof, driving means for driving the conveyor belt, and a scraping member that contacts the conveyor belt. At least one of the scraping member and a convex portion of the conveyor belt deforms elastically such that a tip end of the scraping member enters a concave portion and scrapes away the powder stuck to the conveyor belt.
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