发明授权
US5778285A Image forming apparatus for collecting residual toner from a drum using
an AC voltage
失效
图像形成装置,用于使用AC电压从滚筒收集残留调色剂
- 专利标题: Image forming apparatus for collecting residual toner from a drum using an AC voltage
- 专利标题(中): 图像形成装置,用于使用AC电压从滚筒收集残留调色剂
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申请号: US874714申请日: 1997-06-13
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公开(公告)号: US5778285A公开(公告)日: 1998-07-07
- 发明人: Akira Nagahara , Sachio Sasaki , Mitsuhito Furukawa , Shigenobu Utaka , Yoshio Yamaguchi , Mitsuru Sato , Nobuo Kuwabara , Haruyasu Watanabe , Takefumi Takahashi
- 申请人: Akira Nagahara , Sachio Sasaki , Mitsuhito Furukawa , Shigenobu Utaka , Yoshio Yamaguchi , Mitsuru Sato , Nobuo Kuwabara , Haruyasu Watanabe , Takefumi Takahashi
- 申请人地址: JPX Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX5-281995 19931015
- 主分类号: G03G21/10
- IPC分类号: G03G21/10 ; G03G15/08 ; G03G21/00 ; G03G21/06 ; G03G15/24
摘要:
An image forming apparatus which collects residual toners on a latent image carrier in a developing unit. The image forming apparatus have a rotary endless latent image carrier; an image forming unit for forming an electrostatic latent image on the latent image carrier; a developing unit for developing the electrostatic latent image on the latent image carrier with a powdery developer and collecting residual toners on the latent image carrier at a same time; a transfer unit for transferring the developed image on the latent image carrier onto a sheet; a distribution member for distributing residual toners on the latent image carrier when in contact with the latent image carrier after image transfer; and a voltage supplying unit for supplying an AC voltage to the distribution member. An image forming apparatus according to another aspect have a rotary endless latent image carrier; an image forming unit for forming an electrostatic latent image on the latent image carrier; a developing unit for developing the electrostatic latent image on the latent image carrier with a powdery developer and collecting residual toners on the latent image carrier at a same time; a transfer unit for transferring the developed image on the latent image carrier onto a sheet; and a distribution roller for distributing residual toners on the latent image carrier when in contact with the latent image carrier after image transfer.