发明名称 |
Developing apparatus, image forming apparatus, and process cartridge |
摘要 |
A disclosed developing apparatus employs a flare roller that is a toner carrier in which electrodes of two different phases are provided at fine intervals. Density irregularities or scumming in a developed image due to a potential difference between the flare roller and a latent image carrier are prevented by maintaining a constant potential on the flare roller surface. A voltage is applied to the electrodes on the flare roller such that an electric field that varies with time is generated between the electrodes, whereby a toner cloud is produced by the movement or hopping of toner over the flare roller. Thereby the toner attaches to a latent image on the latent image carrier, thus developing the latent image. In one embodiment, a bias with an average potential equal to an average potential of the bias applied to the electrodes is applied to a toner layer thickness regulating member. |
申请公布号 |
US8073350(B2) |
申请公布日期 |
2011.12.06 |
申请号 |
US20080140032 |
申请日期 |
2008.06.16 |
申请人 |
ISHII YASUYUKI;KOSUGI HIDEKI;TAKAHASHI TOMOKO;YAMADA MASAAKI;KADOTA ICHIRO;NAKAGAWA YOSHINORI;RICOH COMPANY, LTD. |
发明人 |
ISHII YASUYUKI;KOSUGI HIDEKI;TAKAHASHI TOMOKO;YAMADA MASAAKI;KADOTA ICHIRO;NAKAGAWA YOSHINORI |
分类号 |
G03G15/08 |
主分类号 |
G03G15/08 |
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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