发明名称 |
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS |
摘要 |
A developing device capable of improving the image density and the dot reproducibility, and an image forming apparatus including the same are provided. A developing device applies an alternating voltage superimposed on a direct current voltage to a developing roller to thereby develop an electrostatic latent image formed on a photoreceptor with toner. A bias voltage waveform superimposed at this time has an original period (first period) in which each of a development-side electrical potential and an opposite development-side electrical potential is applied one time and a period (second period) in which a Vpp is gradually increased from the initial value to the maximum value.
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申请公布号 |
US2009214240(A1) |
申请公布日期 |
2009.08.27 |
申请号 |
US20090393388 |
申请日期 |
2009.02.26 |
申请人 |
HAMADA TOSHIMASA;MAEZAWA NOBUHIRO |
发明人 |
HAMADA TOSHIMASA;MAEZAWA NOBUHIRO |
分类号 |
G03G15/06 |
主分类号 |
G03G15/06 |
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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