Invention Grant
US07932010B2 Toner, method of manufacturing the same, two-component developer, developing device, and image forming apparatus
有权
调色剂,其制造方法,双组分显影剂,显影装置和图像形成装置
- Patent Title: Toner, method of manufacturing the same, two-component developer, developing device, and image forming apparatus
- Patent Title (中): 调色剂,其制造方法,双组分显影剂,显影装置和图像形成装置
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Application No.: US12249257Application Date: 2008-10-10
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Publication No.: US07932010B2Publication Date: 2011-04-26
- Inventor: Saori Yamada , Yoshitaka Kawase , Yoshiaki Akazawa
- Applicant: Saori Yamada , Yoshitaka Kawase , Yoshiaki Akazawa
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Nixon & Vanderhye P.C.
- Priority: JPP2007-265868 20071011
- Main IPC: G03G9/097
- IPC: G03G9/097

Abstract:
There are provided a toner, a method of manufacturing the toner, a two-component developer, a developing device, and an image forming apparatus, which are excellent in a charge rising property, environmental stability, and life stability during printing and which cause less fogging. The toner contains a core particle containing binder resin and colorant, and a coating layer which contains resin and a charge control agent and is formed on a surface of the core particle. At least a part of the resin contained in the coating layer is melt-bonded to the core particle, and the charge control agent is dispersed and immobilized in the coating layer. The dispersed charge control agent has a dispersion diameter of less than 1 μm.
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