Invention Grant
- Patent Title: Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
- Patent Title (中): 静电荷图像显影调色剂，静电荷图像显影剂，调色剂盒，处理盒，成像设备和图像形成方法
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Application No.: US13352821Application Date: 2012-01-18
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Publication No.: US08628900B2Publication Date: 2014-01-14
- Inventor: Yasuo Kadokura , Shunsuke Nozaki , Hideaki Yoshikawa , Shinichiro Kawashima , Sakae Takeuchi , Yuka Zenitani , Sakon Takahashi , Hiroyoshi Okuno
- Applicant: Yasuo Kadokura , Shunsuke Nozaki , Hideaki Yoshikawa , Shinichiro Kawashima , Sakae Takeuchi , Yuka Zenitani , Sakon Takahashi , Hiroyoshi Okuno
- Applicant Address: JP Tokyo
- Assignee: Fuji Xerox Co., Ltd.
- Current Assignee: Fuji Xerox Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2011-199904 20110913
- Main IPC: G03G9/00
- IPC: G03G9/00
Abstract:
An electrostatic charge image developing toner includes: toner particles; and an external additive. The external additive contains sol-gel silica having a volume average particle diameter of from about 70 nm to about 400 nm and an average circularity of from about 0.5 to about 0.9, and a dielectric loss factor of the toner is from about 5×10−3 to about 30×10−3 when the toner is kept for 24 hours under the environment of a temperature of 28° C. and a humidity of 85%.
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