Invention Grant
US06947688B2 Image-forming apparatus including first and second charging members with a target potential charging feature
有权
图像形成装置包括具有目标电位充电特征的第一和第二充电部件
- Patent Title: Image-forming apparatus including first and second charging members with a target potential charging feature
- Patent Title (中): 图像形成装置包括具有目标电位充电特征的第一和第二充电部件
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Application No.: US10610586Application Date: 2003-07-02
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Publication No.: US06947688B2Publication Date: 2005-09-20
- Inventor: Ryo Inoue , Mitsuhiro Ota
- Applicant: Ryo Inoue , Mitsuhiro Ota
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2002-195665 20020704
- Main IPC: G03G15/00
- IPC: G03G15/00 ; G03G5/08 ; G03G5/147 ; G03G15/02
Abstract:
According to the present invention, in an image-forming apparatus having at least two chargers for charging a rotating image carrier, in accordance with change in bias applied to a second charger disposed on the downstream side in a rotational direction of the image carrier, the bias applied to a first charger disposed on the upstream side is changed. Thereby, the electric power required for the charging is reduced.
Public/Granted literature
- US20040005171A1 Image-forming apparatus having a plurality of charging means for image carrier Public/Granted day:2004-01-08
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