Invention Grant
- Patent Title: Image forming apparatus and image forming method
- Patent Title (中): 图像形成装置及图像形成方法
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Application No.: US12498216Application Date: 2009-07-06
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Publication No.: US08526855B2Publication Date: 2013-09-03
- Inventor: Masaru Kobashi , Yoichi Yamada , Koji Migita , Takatomo Fukumoto
- Applicant: Masaru Kobashi , Yoichi Yamada , Koji Migita , Takatomo Fukumoto
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: DLA Piper LLP (US)
- Priority: JP2008-182265 20080714
- Main IPC: G03G21/00
- IPC: G03G21/00

Abstract:
An image forming apparatus includes: an image carrier; an exposure device; a developing device that develops the latent image on the image carrier by using a toner charged to a predetermined polarity and having an external additive; a transfer device that transfers a toner image developed on the image carrier to a transfer medium; a first charging member that charges the external additive and the transfer residual toner remaining on the image carrier and the image carrier after transfer to the same polarity as a polarity of the toner; a cleaning member that electrostatically attracts the external additive and the transfer residual toner charged by the first charging member; and a second charging member that charges the image carrier to an electric potential smaller in absolute value than an electric potential of the image carrier generated after the image carrier passes the cleaning member.
Public/Granted literature
- US20100008699A1 Image Forming Apparatus and Image Forming Method Public/Granted day:2010-01-14
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