Invention Grant
- Patent Title: Electrostatic image developing toner, electrostatic developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
- Patent Title (中): 静电图像显影调色剂，静电显影剂，调色剂盒，处理盒，成像设备和图像形成方法
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Application No.: US13626645Application Date: 2012-09-25
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Publication No.: US08951706B2Publication Date: 2015-02-10
- Inventor: Hirotaka Matsuoka , Sumiaki Yamasaki , Satoshi Hiraoka , Yuki Sasaki , Susumu Yoshino
- Applicant: Fuji Xerox Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Fuji Xerox Co., Ltd.
- Current Assignee: Fuji Xerox Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2011-091570 20110415; JP2012-093429 20120416
- Main IPC: G03G9/087
- IPC: G03G9/087 ; C08G63/672 ; G03G9/097
Abstract:
An electrostatic image developing toner contains toner particles containing a polyester resin having a repeating unit deriving from a dicarboxylic acid and a repeating unit deriving from a rosin diol, and an external additive containing silica particles, wherein a weight average molecular weight (Mw) of the soluble matter in tetrahydrofuran of the toner is from about 60,000 to about 200,000.
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