公开(公告)号：US20090208250A1

公开(公告)日：2009-08-20

申请号：US12301121

申请日：2007-05-18

Applicant: Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroe Fuchigami ,  Hiroaki Takamura ,  Yasunori Kawai

Inventor： Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroe Fuchigami ,  Hiroaki Takamura ,  Yasunori Kawai

IPC: G03G15/00 ,  G03G15/04

CPC classification number: G03G5/144 ,  G03G5/056 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/0616

Abstract: An electrophotographic photoreceptor having high sensitivity and hardly affected by the transfer in an electrophotographic process is provided. The electrophotographic photoreceptor includes an undercoat layer containing metal oxide particles and a binder resin and a photosensitive layer disposed on the undercoat layer, wherein the metal oxide particles have a volume average particle diameter of 0.1 μm or less and a 90% cumulative particle diameter of 0.3 μm or less which are measured by a dynamic light-scattering method in a liquid of the undercoat layer dispersed in a solvent mixture of methanol and 1-propanol at a weight ratio of 7:3, and the photosensitive layer contains a binder resin having an ester bond.

Abstract translation: 提供了具有高灵敏度且几乎不受电子照相方法转印影响的电子照相感光体。 电子照相感光体包括含有金属氧化物颗粒和粘合剂树脂的底涂层和设置在底涂层上的感光层，其中金属氧化物颗粒的体积平均粒径为0.1μm以下，90％的累积粒径为0.3 通过动态光散射法在分散在甲醇和1-丙醇的溶剂混合物中的底涂层的液体中以重量比7:3进行测量的感光层含有具有 酯键。