发明名称 ELECTROPHOTOGRAPHIC CARRIER, ELECTROPHOTOGRAPHIC TWO-COMPONENT DEVELOPER AND IMAGE FORMING METHOD
摘要 PROBLEM TO BE SOLVED: To provide a carrier which stably maintains desired low resistance value and excellent charging properties even to environmental variation, and which suppress the shaving and peeling of a covering layer, and the color stain of a toner caused thereby, even in stirring over a long period. SOLUTION: In the electrophotographic carrier obtained by forming a covering layer on the surface of a core material particle having magnetism using a covering layer-dispersed liquid obtained by dissolving or dispersing at least a binder resin and conductive particulates into a solvent, at least a guanamine resin or a melamine resin and a resin capable of cross-linking reacted with the guanamine resin or melamine resin are contained as the binder resin, and also, as the conductive particulates, solvent-soluble conductive polymer particulates containing an acceptor dopant are contained. COPYRIGHT: (C)2010,JPO&INPIT
申请公布号 JP2009276575(A) 申请公布日期 2009.11.26
申请号 JP20080127854 申请日期 2008.05.15
申请人 RICOH CO LTD 发明人 SAKASHITA SHINGO;KOBAN AKIHIRO;INOUE RYUTA;MORIYA YOSHIHIRO
分类号 G03G9/113;G03G9/10 主分类号 G03G9/113
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