Invention Grant
- Patent Title: Toner for developing electrostatic charge image, developer for developing an electrostatic charge image, toner cartridge, process cartridge, and image forming apparatus
- Patent Title (中): 用于显影静电荷图像的调色剂，用于显影静电荷图像的显影剂，调色剂盒，处理盒和成像设备
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Application No.: US12430489Application Date: 2009-04-27
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Publication No.: US08236471B2Publication Date: 2012-08-07
- Inventor: Shinpei Takagi , Satoshi Yoshida
- Applicant: Shinpei Takagi , Satoshi Yoshida
- 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: JP2008-325876 20081222
- Main IPC: G03G9/00
- IPC: G03G9/00
Abstract:
A toner for developing an electrostatic charge image, the toner including a binder resin containing a crystalline polyester resin and a noncrystalline polyester resin, a colorant, a releasing agent, a ketone solvent, and an alcoholic solvent, the total concentration of the ketone solvent and the alcoholic solvent in the toner dispersion liquid being less than about 10 ppm when 0.5 g of the toner is dispersed in 2 g of deionized water to form a toner dispersion liquid, and the total concentration of the ketone solvent and the alcoholic solvent in the toner dispersion liquid being from about 2 ppm to about 50 ppm when 0.5 g of the toner is dispersed in 2 g of N,N-dimethylformamide to form a toner dispersion liquid.
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