发明申请
- 专利标题: IMAGE FORMING APPARATUS
- 专利标题(中): 图像形成装置
-
申请号: US12555368申请日: 2009-09-08
-
公开(公告)号: US20100061751A1公开(公告)日: 2010-03-11
- 发明人: Masanori HORIKE , Fuyuhiko Matsumoto , Masanori Saitoh , Nobuaki Kondoh , Shin Kayahara , Osamu Endou , Tomoko Takahashi
- 申请人: Masanori HORIKE , Fuyuhiko Matsumoto , Masanori Saitoh , Nobuaki Kondoh , Shin Kayahara , Osamu Endou , Tomoko Takahashi
- 优先权: JP2008-232873 20080911
- 主分类号: G03G15/06
- IPC分类号: G03G15/06
摘要:
The present invention provides an image forming apparatus, which is able to prevent the adherence of toner on the surface of toner controlling means and around a toner passage hole, and to stably carry out toner passage ON/OFF control when forming an image using the direct recording method. This image forming apparatus includes: a toner carrier; recording medium means; toner controlling means, disposed between the toner carrier and recording medium means, and having a plurality of toner passage holes; and cloud electrode means disposed between the toner carrier and toner controlling means, a toner cloud being formed by applying an AC bias between the toner carrier and cloud electrode means. A control electrode and a common electrode are disposed in toner controlling means, and when the toner of the toner carrier is able to pass through the toner controlling means toward recording medium means, a loop-shaped line of electric force is formed between the recording medium means side and the toner controlling means common electrode, the loop-shaped line by-passing the control electrode.
公开/授权文献
- US08167410B2 Image forming apparatus 公开/授权日:2012-05-01