发明名称 |
CHARGING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND TONER |
摘要 |
The present invention provides a charging device which comprises a charging roller (14a) and a cleaning component (14b). The charging roller charges a surface of an image- recording medium (11) with a voltage which is applied from an external source. The cleaning component cleans a surface of the charging roller. The charging roller includes a resistance adjustment layer which is made of a resin composite and formed on an outer periphery of a core metal. The hardness of the charging roller is 45 degrees or more in JIS D hardness. The cleaning component has a portion which is in contact with the charging roller. This portion is made of resin foam which has a continuous foam structure. The density of the resin foam is 5 to 15 kg/m3 and its tensile strength is 1.7±0.5 kg/cm2.
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申请公布号 |
KR20060127179(A) |
申请公布日期 |
2006.12.11 |
申请号 |
KR20067018575 |
申请日期 |
2006.09.11 |
申请人 |
RICOH CO., LTD. |
发明人 |
MIZUISHI HARUJI;OJIMI TOKUYA;KOIKE TOSHIO;SHINTANI TAKESHI;ARAI YUJI;YONEDA TAKUZI;AMEMIYA KEN;TAWADA TAKAAKI;TOMITA MASAMI;KAWASUMI MASANORI;MURAISHI TAKAYA;HARADA HIROOMI;NINOMIYA HIROMICHI |
分类号 |
G03G9/08;G03G15/06;F16C13/00;G03G9/087;G03G15/02;G03G21/10;G03G21/18 |
主分类号 |
G03G9/08 |
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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