发明名称 |
Charging device and image forming apparatus provided therewith |
摘要 |
An image forming apparatus has a charging member opposed to an outer circumferential surface of a rotating object to be charged. The image forming apparatus has a voltage applying section for applying a pulsating voltage Vsp between the charging member and the object to be charged. The pulsating voltage Vsp is obtained by superimposing a voltage component of a direct current on a voltage component that periodically changes. The image forming apparatus is made to satisfy a relation of Vpp<=|Vth|, where Vpp is a peak-to-peak voltage value of the pulsating voltage Vsp and Vth is a charging start voltage value of the object to be charged. The relation prevents opposite charge from being imparted to residual toner on the object to be charged.
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申请公布号 |
US2005220470(A1) |
申请公布日期 |
2005.10.06 |
申请号 |
US20040923872 |
申请日期 |
2004.08.24 |
申请人 |
KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. |
发明人 |
HIROTA AKIRA;KATORI KENTARO;MATSUURA MASAHIKO |
分类号 |
G03G15/02;(IPC1-7):G03G15/02 |
主分类号 |
G03G15/02 |
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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