发明名称 |
Carrier and developer for latent electrostatic image development, container housing developer, image forming process, image forming apparatus, and process cartridge |
摘要 |
A carrier for electrostatic development contains a core particle and a coating layer covering the core particle, and the core particle is a ferrite particle containing at least one of Zr in an amount of 0.005% by mass to 5% by mass and Bi in an amount of 0.001% by mass to 1% by mass. The carrier shows a sufficient resistance, is stably charged over a long period of time, can avoid roughness and irregular density in halftone images, prevents deposition of the carrier particles on a photoconductor, can satisfactorily reproduce character images and can produce high-quality images over a long period of time. The carrier is usable for constituting a developer, a container housing the developer, an image forming apparatus and process, and process cartridge using the developer.
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申请公布号 |
US2004234876(A1) |
申请公布日期 |
2004.11.25 |
申请号 |
US20040798871 |
申请日期 |
2004.03.12 |
申请人 |
SUZUKI KOUSUKE;KONDOU TOMIO;YAMASHITA MASAHIDE |
发明人 |
SUZUKI KOUSUKE;KONDOU TOMIO;YAMASHITA MASAHIDE |
分类号 |
G03G9/08;G03G9/107;G03G9/113;G03G13/06;(IPC1-7):G03G13/06 |
主分类号 |
G03G9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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