发明名称 Image forming apparatus
摘要 The image forming apparatus includes a discharge execution section for forcedly discharging toner from a developing device and forming a toner image on a photosensitive drum, in which a primary transfer roller transfers the toner image formed on the photosensitive drum by the discharge execution section by applying, to a predetermined area part of the toner image, a first transfer bias having a predetermined transfer efficiency with respect to an intermediate transfer belt and applying, to a part excluding the predetermined area part of the toner image, a second transfer bias whose transfer efficiency is at least smaller than the predetermined transfer efficiency of the first transfer bias.
申请公布号 US8666290(B2) 申请公布日期 2014.03.04
申请号 US13218833 申请日期 2011.08.26
申请人 发明人
分类号 G03G0015/000008;G03G0015/000016;G03G0015/000001 主分类号 G03G0015/000008
代理机构 代理人
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