发明名称 |
Electronic photographing apparatus |
摘要 |
The invention provides an electronic photographing apparatus using a two-component developer as a mixture of a toner and a carrier as well as a development unit including a developer roll having magnetic poles therein. The electronic photographing apparatus includes a development bias power source for applying to the developer roll a development bias voltage where an AC voltage is superimposed on a DC voltage. The electronic photographing apparatus develops a latent image on a photosensitive body by using toner to form an image, characterized in that the ratio of the volume of the carrier to a space sandwiched between the developer roll and the photosensitive body is set within a range from 32 percent to 46 percent and that that the resistivity of the carrier under a field strength of 2000 V/cm is set to 3x10<10 >Omegacm or more.
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申请公布号 |
US2004184842(A1) |
申请公布日期 |
2004.09.23 |
申请号 |
US20040765994 |
申请日期 |
2004.01.29 |
申请人 |
HITACHI PRINTING SOLUTIONS, LTD. |
发明人 |
OKADA HISAO;NAKAYAMA MASAYOSHI |
分类号 |
G03G9/10;G03G15/09;(IPC1-7):G03G15/09 |
主分类号 |
G03G9/10 |
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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