发明名称 |
Image forming device and image forming method |
摘要 |
In an image forming apparatus of the present invention, image signal electrodes are provided on a flexible printed circuit base in opposing relation to a developer carrying member such that they are disposed around the openings of developer passage holes, different voltages are applied thereto during dot formation and during non-dot formation, a throttle electrode is provided on the flexible printed circuit base in opposing relation to a counter electrode, a voltage always lower than the voltage applied to the image signal electrodes is applied to the throttle electrode when a developer of negative polarity is applied, and a voltage always higher than the voltage applied to the image signal electrodes is applied to the throttle electrode when a developer of positive polarity is applied.
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申请公布号 |
US6409314(B1) |
申请公布日期 |
2002.06.25 |
申请号 |
US20000601147 |
申请日期 |
2000.07.28 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;ARRAY AKTIEBOLAG |
发明人 |
KITAOKA YOSHITAKA;KUMON AKIRA;OGAWA KATSUTOSHI;FUKANO AKIRA;AIZAWA MASAHIRO;MATSUO HIROYUKI |
分类号 |
B41J2/415;(IPC1-7):B41J2/06 |
主分类号 |
B41J2/415 |
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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