发明名称 IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
摘要 PROBLEM TO BE SOLVED: To provide a long-life image forming apparatus capable of extending the life of an image carrier and stabilizing cleaning performance while reducing the size and cost of the apparatus without providing a lubricant application device, and maintaining high image quality.SOLUTION: A photoreceptor 10 has a surface layer containing fine particles. A cleaning blade 62 has an edge layer having a 100% modulus value at 23°C of 6 MPa or more, and a back-up layer having a 100% modulus value lower than that of the edge layer, which form a two-layer laminated structure. A charging roller 41 is applied with a DC voltage. A developing device 50 uses a toner that contains zinc stearate as an external additive, the zinc stearate having a total isolation rate of 25% or less, and a weak adhesion ratio of 20 to 50%; and contains a fatty acid metal salt in an amount of 0.05 to 0.15 parts by mass relative to 100 parts by mass of toner base particles.
申请公布号 JP2014170118(A) 申请公布日期 2014.09.18
申请号 JP20130041946 申请日期 2013.03.04
申请人 RICOH CO LTD 发明人 FUJISHIRO TAKATSUGU;WATANABE KAZUHIKO;TAWADA TAKAAKI;KIKUCHI HISASHI
分类号 G03G21/10;G03G15/02;G03G21/18 主分类号 G03G21/10
代理机构 代理人
主权项
地址