发明授权
US08086150B2 Toner particle-bearing roller with projection portion, developing device having such toner particle-bearing roller, and image forming apparatus having such developing device
有权
具有突起部分的调色剂颗粒承载辊，具有这种调色剂颗粒承载辊的显影装置和具有这种显影装置的图像形成装置
- 专利标题： Toner particle-bearing roller with projection portion, developing device having such toner particle-bearing roller, and image forming apparatus having such developing device
- 专利标题（中）： 具有突起部分的调色剂颗粒承载辊，具有这种调色剂颗粒承载辊的显影装置和具有这种显影装置的图像形成装置
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申请号： US11556041申请日： 2006-11-02
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公开(公告)号： US08086150B2公开(公告)日： 2011-12-27
- 发明人: Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai
- 申请人： Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai
- 申请人地址： JP Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： DLA Piper LLP (US)
- 优先权： JP2005-319930 20051102; JP2005-319931 20051102; JP2005-327781 20051111; JP2005-340271 20051125; JP2006-001479 20060106
- 主分类号： G03G15/08
- IPC分类号： G03G15/08
摘要：
A developing device includes a toner particle-bearing roller that bears toner particles on its surface and develops a latent image borne by an image-bearing member with those toner particles, the toner particle-bearing roller has a projection portion disposed on its surface, the projection portion having a top surface having a flat portion, and a width of the top surface being equal to or more than a volume average particle diameter of the toner particles.