发明授权
- 专利标题： Developing roller, developing device, and image forming apparatus including developing device
- 专利标题（中）： 显影辊，显影装置和包括显影装置的图像形成装置
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申请号： US14572642申请日： 2014-12-16
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公开(公告)号： US09122194B2公开(公告)日： 2015-09-01
- 发明人: Tamotsu Shimizu , Yuji Kamiyama , Akihiro Watanabe , Yoshinobu Yoneima , Shizuka Okada , Sakae Saito , Yasuhiro Oishi
- 申请人： KYOCERA Document Solutions Inc.
- 申请人地址： JP Osaka-shi
- 专利权人： KYOCERA Document Solutions Inc.
- 当前专利权人： KYOCERA Document Solutions Inc.
- 当前专利权人地址： JP Osaka-shi
- 代理机构： Alleman Hall McCoy Russell & Tuttle LLP
- 优先权： JP2013-264426 20131220
- 主分类号： G03G15/09
- IPC分类号： G03G15/09 ; G03G15/08
摘要：
A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. The roller main body includes a resin coat layer that is formed on an outer circumferential surface of a base body that is made of a metal including aluminum, the resin coat layer being made of a resin material and having electric conductivity. An AC impedance Z obtained from an application of an AC voltage at a frequency in a range from 0.05 Hz to 100 Hz is equal to or higher than 100Ω, and a phase angle θ satisfies a relationship of 0 rad
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