发明名称 DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
摘要 <P>PROBLEM TO BE SOLVED: To provide a developing device, a process cartridge and an image forming apparatus, in which fine multi-color images with more simple constitution can be formed by using an ETH phenomenon and the dispersion of fine particles can be prevented. <P>SOLUTION: The developing device is provided with a carrying member arranged oppositely to a latent image carrier and having a plurality of carrying electrodes for generating an electric field for moving fine particles, a voltage supply means for applying an n-phase (n is a positive integer &ge;2) to the carrying electrodes, and a carrying member surface potential detection means for detecting surface potential on the carrying member to stick the fine particles to the surface of the latent image carrier and to develop a latent image. The voltage supply means in the developing device applies the n-phase voltage to the carrying electrodes so that the surface potential on the carrier member is included between the potential of an image part of the latent image carrier and the potential of a non-image part. <P>COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2007272195(A) 申请公布日期 2007.10.18
申请号 JP20070015704 申请日期 2007.01.26
申请人 RICOH CO LTD 发明人 TAKAHASHI TOMOKO;AOKI KATSUHIRO;YOSHINAMI HIDEKI
分类号 G03G15/08 主分类号 G03G15/08
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