发明授权
US6035168A Developing device having a reduced width in the horizontal direction
有权
显影装置在水平方向上具有减小的宽度
- 专利标题: Developing device having a reduced width in the horizontal direction
- 专利标题(中): 显影装置在水平方向上具有减小的宽度
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申请号: US223370申请日: 1998-12-30
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公开(公告)号: US6035168A公开(公告)日: 2000-03-07
- 发明人: Jitsuo Masuda , Hiroshi Kawamoto , Makoto Uehara , Yasutaka Maeda , Takeshi Wakabayashi , Takahiko Kimura , Tao Ou , Naotaka Funayama , Toshio Nishino , Yasuyuki Ishiguro , Syouichi Fujita , Hirofumi Sakita
- 申请人: Jitsuo Masuda , Hiroshi Kawamoto , Makoto Uehara , Yasutaka Maeda , Takeshi Wakabayashi , Takahiko Kimura , Tao Ou , Naotaka Funayama , Toshio Nishino , Yasuyuki Ishiguro , Syouichi Fujita , Hirofumi Sakita
- 申请人地址: JPX Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JPX Osaka
- 优先权: JPX10-002923 19980109; JPX10-160367 19980609
- 主分类号: G03G15/08
- IPC分类号: G03G15/08
摘要:
A developing device having a reduced size in the horizontal direction and in which a developing agent is transported with stirring along a circulating route inside a developing tank to effectively mix newly added toner therewith and stir the mixture. A developing tank for storing developing agent therein is horizontally divided with a partition member thereby providing an upper chamber and a lower chamber. A developer roller and a stirring roller are disposed in the lower chamber. Two screw rollers are disposed in the upper chamber. An inlet opening is formed between an end of the partition member and a regulating member for restricting a layer if the developing agent adsorbed to the developing roller. A developing agent removed by the restricting member is fed through an inlet opening to the screw rollers in the upper chamber. The developing agent is mixed with fresh toner supplied through a supply inlet and transported with being stirred by the screw roller in its axial direction. Then, the developing agent is transferred to the screw roller disposed parallel to the screw roller and it is further transported and returned to the stirring roller in the lower chamber through a return port provided opposite to the screw roller. The compact construction of the developing device is realized by arranging screw rollers for stirring and transporting toner in the upper chamber.