Invention Grant
US08129085B2 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.: US12178130Application Date: 2008-07-23
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Publication No.: US08129085B2Publication Date: 2012-03-06
- Inventor: Yoshinori Yamamoto , Hiroshi Onda , Yoshiaki Akazawa
- Applicant: Yoshinori Yamamoto , Hiroshi Onda , 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: JPP2007-191336 20070723
- Main IPC: G03G5/00
- IPC: G03G5/00 ; G03G9/08

Abstract:
A toner includes toner particles containing at least binder resin and colorant. The toner particles contain a large-sized toner particle group of particles and a small-sized toner particle group of particles having a volume average particle size smaller than that of the large-sized toner particle group. In the toner, a volume average particle size D50v is 4 μm to 8 μm at 50% in accumulated volume counted from a large particle-side in accumulated volume distribution of entire toner particles; a content of toner particles contained in a toner particle group having a volume average particle size of 7 μm or more is 24% to 47% by volume based on the entire toner particles; and a content of toner particles contained in a toner particle group having a number average particle size of 5 μm or less is 10% to 50% by number or less based on the entire toner particles.
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