ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC DEVICE, AND PHTHALOCYANINE PIGMENT

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor capable of achieving high level suppression effect of ghost phenomenon while maintaining chargeability required as the electrophotographic photoreceptor.SOLUTION: The electrophotographic photoreceptor has: a support medium; and a...

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Main Authors KUNO JUNPEI, TOGUCHI KANAME, HINATA SHOMA, SAKUMA KAZUKO, KAWADA ISAO, ITO YUTO, TANAKA MASATO, KUMOI HIROFUMI, KAWAHARA MASATAKA, NISHIDA TAKESHI
Format Patent
LanguageEnglish
Japanese
Published 18.05.2017
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor capable of achieving high level suppression effect of ghost phenomenon while maintaining chargeability required as the electrophotographic photoreceptor.SOLUTION: The electrophotographic photoreceptor has: a support medium; and a photosensitive layer containing a phthalocyanine pigment. In the phthalocyanine pigment, defining crystal correlation length as r, and the size of crystal particle as R, the electrophotographic photoreceptor is characterized in that R is 400nm or less, and k=r/R is 0.17-0.42.SELECTED DRAWING: Figure 1 【課題】 電子写真感光体として求められる帯電性を維持しながら、高いレベルのゴースト現象の抑制効果を達成可能な電子写真感光体を提供する。【解決手段】 支持体と、フタロシアニン顔料を含有する感光層を有する電子写真感光体であって、前記フタロシアニン顔料の、結晶相関長をｒとし、結晶粒子のサイズをＲとしたときに、Ｒが４００ｎｍ以下であり、かつ、ｋ＝ｒ／Ｒが０．１７以上０．４２以下であることを特徴とする電子写真感光体。【選択図】 図１
Bibliography:Application Number: JP20160211018