| Original document(62 pages) 中文版 |
A toner that realizes high toner fill in toner images, being capable of producing highly fine images through reduction of image layer thickness, and that exhibits stable cleanability over a prolonged period of time; a developing agent utilizing the toner and capable of realizing high image quality; and utilizing the toner, a container packed with toner, process cartridge, image forming apparatus and method of image forming. There is provided a toner of approximately spherical configuration having a rugged surface, comprising a toner material containing at least a binder resin and a colorant, wherein the toner has a shape factor (SF-1), representing the degree of spherical configuration thereof, of 105 to 180 and there is a correlation between shape factor (SF-2) representing the degree of ruggedness of the toner and volume-average particle diameter of the toner, and wherein an inorganic oxide particle-containing layer lies within 1 mum from the surface of the toner. |
Application Number
申请号 |
200580009832 |
Application Date
申请日 |
2005.01.24 |
| Title 名称 |
Toner, and developer, container packed with toner, process cartridge, image forming apparatus and method for forming image |
Publication Number
公开号 |
1938649 |
Publication Date
公开日 |
2007.03.28 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
G03G9/08;G03G9/087 |
Applicant(s) Name
申请人 |
Ricoh K. K. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
songli yangwu |
| More information 更 多 信 息 |
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