CHARGING MEMBER, CHARGING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING DEVICE

To provide a charging member capable of suppressing wear of an electrophotographic photoreceptor.SOLUTION: A charging member is provided, comprising a conductive base material, an elastic layer provided on the conductive base material and configured to have a storage modulus G of 5.0 Mpa or less at...

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Bibliographic Details
Main Authors HIRAKAWA NOBORU, TAGAWA YUKI, OZAKI TAKESHI, IDA YASUHIKO
Format Patent
LanguageEnglish
Japanese
Published 03.03.2023
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:To provide a charging member capable of suppressing wear of an electrophotographic photoreceptor.SOLUTION: A charging member is provided, comprising a conductive base material, an elastic layer provided on the conductive base material and configured to have a storage modulus G of 5.0 Mpa or less at 100 Hz, and a surface layer provided on the elastic layer, where a resistance component Ra of a capacitive semicircle including 2.5 kHz in a Cole-Cole plot obtained by measuring the charging member in a range of 1 MHz to 0.1 Hz using the AC impedance method is 6.3×104 Ω or less.SELECTED DRAWING: None 【課題】電子写真感光体の摩耗を抑制する帯電部材の提供。【解決手段】導電性基材と、前記導電性基材上に設けられ、１００Ｈｚにおける貯蔵弾性率Ｇが５．０ＭＰａ以下である弾性層と、前記弾性層上に設けられた表面層と、を有する帯電部材であって、交流インピーダンス法によって１ＭＨｚから０．１Ｈｚまでの範囲で前記帯電部材を測定することで得られるＣｏｌｅ－Ｃｏｌｅプロットにおいて、２．５ｋＨｚを含む容量性半円の抵抗成分Ｒａが６．３×１０４Ω以下である、帯電部材。【選択図】なし
Bibliography:Application Number: JP20210135201