| 发明名称 | Electrophotographic member, process cartridge, and electrophotographic apparatus | ||
| 摘要 | Provided is an electrophotographic member for an electrophotographic apparatus, which suppresses the occurrence of a banding image caused by uneven charging. The electrophotographic member includes: an electroconductive substrate; and a surface layer, in which: the surface layer includes a binder resin and an aggregate of at least one crystal particle selected from the group consisting of a flaky crystal particle of magnesium carbonate and a flaky crystal particle of calcium carbonate; an edge face of a card house structure formed of the crystal particle is exposed at a surface of the aggregate; a surface of the surface layer includes a convex portion derived from the aggregate; and a surface of the convex portion has unevenness reflecting a shape of the edge face of the card house structure exposed at the surface of the aggregate. | ||
| 申请公布号 | US9268243(B2) | 申请公布日期 | 2016.02.23 |
| 申请号 | US201414262442 | 申请日期 | 2014.04.25 |
| 申请人 | CANON KABUSHIKI KAISHA | 发明人 | Aoyama Takehiko;Taniguchi Tomohito;Yamauchi Kenichi |
| 分类号 | G03G15/00;G03G21/18;G03G5/04;G03G15/02 | 主分类号 | G03G15/00 |
| 代理机构 | Fitzpatrick, Cella, Harper and Scinto | 代理人 | Fitzpatrick, Cella, Harper and Scinto |
| 主权项 | 1. An electrophotographic member comprising: an electroconductive substrate; and a surface layer, wherein: the surface layer includes: a binder resin; andan aggregate of at least one crystal particle selected from the group consisting of a flaky crystal particle of magnesium carbonate and a flaky crystal particle of calcium carbonate; an edge face of a card house structure formed of the crystal particle is exposed at a surface of the aggregate; a surface of the surface layer includes a convex portion derived from the aggregate; and a surface of the convex portion has unevenness reflecting a shape of the edge face of the card house structure exposed at the surface of the aggregate. | ||
| 地址 | Tokyo JP | ||