发明名称 Image forming apparatus
摘要 An image forming apparatus having at least a latent electrostatic image bearing member, and a recharging unit configured to recharge a residual toner remaining on the latent electrostatic image bearing member, wherein after transfer, the residual toner is passed through the recharging unit and is then recovered in a developing device; a charging component of the recharging unit that comes into contact with the latent electrostatic image bearing member is a polymer sheet having a surface roughness (Ra) of 0.12 μm to 0.51 μm; the toner contains at least a pigment, a binder resin, and a releasing agent, and contains inorganic fine particles as an external additive, and the amount of the inorganic fine particles and the amount of the releasing agent satisfy three specific Expressions.
申请公布号 US7903998(B2) 申请公布日期 2011.03.08
申请号 US20080046866 申请日期 2008.03.12
申请人 RICOH COMPANY, LTD. 发明人 MATSUMOTO MITSUYO;NOZAKI CHIYOSHI;KADOTA TAKUYA;KUROSE KATSUNORI;NOZAKI TSUYOSHI;YAMAMOTO ATSUSHI;ISHIKAWA YOSHIMICHI
分类号 G03G21/00;G03G9/00;G03G15/095;G03G15/10 主分类号 G03G21/00
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