公开(公告)号：US20150118608A1

公开(公告)日：2015-04-30

申请号：US14522035

申请日：2014-10-23

Applicant: KYOCERA Document Solutions Inc.

Inventor： Jun AZUMA ,  Hideki OKADA

IPC: G03G5/06

CPC classification number: G03G5/0618 ,  G03G5/0517 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/0672 ,  G03G5/0696

Abstract: A multi-layer electrophotographic photosensitive member contains a charge generating material including oxo-titanium phthalocyanine that among diffraction peaks for Bragg angles 2θ±0.2° with respect to characteristic X-rays of CuKα having a wavelength of 1.542 Å, at least exhibits a highest diffraction peak at 27.2°. The multi-layer electrophotographic photosensitive member also contains a hole transport material including a triarylamine derivative shown in Generic Formula (1). A ratio of the hole transport material relative to a binder resin in a charge transport layer is no greater than 0.55. In Generic Formula (1), Ar1 represents an aryl group substituted with at least one substituent selected from the group consisting of an alkoxy group having two to four carbon atoms and an optionally substituted phenoxy group, and Ar2 represents an aryl group optionally substituted with an alkyl group having one to four carbon atoms.

Abstract translation: 多层电子照相感光构件含有包含氧代钛酞菁的电荷产生材料，相对于具有波长为1.542埃的CuKα的特征X射线，在布拉格角2的衍射峰与±0.2度之间，至少表现出最高的 衍射峰在27.2°。 多层电子照相感光构件还含有包含通式（1）所示的三芳基胺衍生物的空穴传输材料。 电荷输送层中的空穴传输材料相对于粘合剂树脂的比例不大于0.55。 在通式（1）中，Ar 1表示被至少一个选自具有2-4个碳原子的烷氧基和任选取代的苯氧基的取代基取代的芳基，Ar 2表示任选被 具有1-4个碳原子的烷基。