- 专利标题： Carrier, developer, supplemental developer, image forming apparatus, image forming method, and process cartridge
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申请号： US15911443申请日： 2018-03-05
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公开(公告)号： US10444651B2公开(公告)日： 2019-10-15
- 发明人: Mariko Takii , Koichi Sakata , Tohru Suganuma , Masahiro Seki , Masashi Nagayama , Toyoaki Tano , Kohsuke Miyazaki
- 申请人： Mariko Takii , Koichi Sakata , Tohru Suganuma , Masahiro Seki , Masashi Nagayama , Toyoaki Tano , Kohsuke Miyazaki
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2017-052864 20170317
- 主分类号： G03G9/107
- IPC分类号： G03G9/107 ; G03G9/113 ; G03G15/08 ; G03G15/00
摘要：
A carrier is provided including a core particle and a resin layer coating the surface of the core particle. The resin layer includes fine metal particles, and a detected metal element amount A obtained by X-ray photoelectron spectrometry of the surface of the carrier is in a range of 4.0 atomic %≤A≤20.0 atomic % and an average major-axis length B of the fine metal particle exposing from the resin layer is in a range of 100 nm≤B≤800 nm.
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