- 专利标题： CARRIER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, ELECTROSTATIC CHARGE IMAGE DEVELOPER, AND IMAGE FORMING APPARATUS
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申请号： US16945122申请日： 2020-07-31
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公开(公告)号： US20210286284A1公开(公告)日： 2021-09-16
- 发明人: Kotaro YOSHIHARA , Asafumi FUJITA , Teppei YAWADA , Motoko SAKAI
- 申请人： FUJIFILM Business Innovation Corp.
- 申请人地址： JP Tokyo
- 专利权人： FUJIFILM Business Innovation Corp.
- 当前专利权人： FUJIFILM Business Innovation Corp.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2020-042288 20200311
- 主分类号： G03G9/107
- IPC分类号： G03G9/107 ; G03G9/113 ; G03G9/097 ; G03G9/087 ; G03G9/08 ; G03G9/083 ; G03G9/093
摘要：
A carrier for developing an electrostatic charge image has magnetic particles and a resin coating that covers the magnetic particles and contains at least one lubricant. The resin coating has a dispersed phase of the lubricant and meets requirement (1).
Requirement (1): the lubricant content in a top layer>the lubricant content in a middle layer>the lubricant content in a bottom layer
The top, middle, and bottom layers are of the resin coating divided into three in the direction of thickness, and the lubricant content is the percentage area of the dispersed phase of the lubricant in a cross-section of the layer taken along the thickness thereof.
Requirement (1): the lubricant content in a top layer>the lubricant content in a middle layer>the lubricant content in a bottom layer
The top, middle, and bottom layers are of the resin coating divided into three in the direction of thickness, and the lubricant content is the percentage area of the dispersed phase of the lubricant in a cross-section of the layer taken along the thickness thereof.
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