发明名称 Image forming apparatus and developing device
摘要 In a developing device, a receive-convey screw conveys a developer received from a developer carrier. The receive-convey screw includes a receive-convey blade including a lower, outer circumferential end located in a downstream end of the receive-convey blade in the developer conveyance direction of the receive-convey screw. A slant-convey screw is disposed obliquely relative to an axial direction of the receive-convey screw, and conveys the developer received from the receive-convey screw upward. The slant-convey screw includes a slant-convey blade including a lower, outer circumferential end located in an upstream end of the slant-convey blade in the developer conveyance direction of the slant-convey screw, the lower, outer circumferential end being located at a height level lower than the lower, outer circumferential end of the receive-convey blade.
申请公布号 US7792466(B2) 申请公布日期 2010.09.07
申请号 US20070754695 申请日期 2007.05.29
申请人 RICOH COMPANY, LTD. 发明人 NAKAYAMA MASAYOSHI;FUJINUMA YOSHITAKA;SUZUKI TAKASHI;TATEYAMA SUSUMU;NAKAGAWA TSUTOMU;KUBO TATSUYA
分类号 G03G15/08 主分类号 G03G15/08
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