公开(公告)号：US06884559B2

公开(公告)日：2005-04-26

申请号：US10391762

申请日：2003-03-20

申请人： Saburo Yokota

发明人： Saburo Yokota

IPC分类号： G03G13/10 ,  C08G63/197 ,  C08G63/672 ,  G03G5/047 ,  G03G5/05 ,  G03G5/147 ,  G03G9/12

CPC分类号： G03G5/056 ,  G03G5/14752

摘要： An electrophotographic imaging method, wherein a liquid developer directly contacts an electrophotographic organic photoreceptor to develop an image, utilizes a binder contained in a surface layer of the organic photoreceptor that comprises a polyester resin having a main chain of a biphenylfluorene repeating unit. Since the organic photoreceptor has effective initial electrostatic characteristics and experiences little change in electrostatic characteristics before and after soaking in a solvent for a liquid developer, even when the liquid developer directly contacts an organic photoreceptor, the organic photoreceptor is not eroded by the solvent, and the developer is not contaminated. Therefore, stable development can be performed.

摘要翻译： 一种电子照相成像方法，其中液体显影剂直接接触电子照相有机感光体以显影，利用包含在具有联苯芴重复单元主链的聚酯树脂的有机感光体的表面层中的粘合剂。 由于有机感光体具有有效的初始静电特性，并且在用于液体显影剂的溶剂中浸渍前后的静电特性几乎没有变化，所以即使液体显影剂直接接触有机感光体，有机感光体也不会被溶剂侵蚀， 开发商不会受到污染。 因此，可以进行稳定的开发。

公开(公告)号：US06348290B1

公开(公告)日：2002-02-19

申请号：US08610069

申请日：1996-02-29

申请人： Saburo Yokota

发明人： Saburo Yokota

IPC分类号： G03G5047

CPC分类号： G03G5/047 ,  G03G5/043 ,  G03G5/0696 ,  G03G5/104

摘要： An organic photoconductor is disclosed, which comprises a cylindrical electrically conductive support and, formed thereon in this order, a charge-generating layer and a charge-transporting layer, the external surface of the cylindrical electrically conductive support having an index of surface area as defined by the following equation (I) of from 0.01 to 0.10, and the charge-generating layer having a multilayer structure comprising a charge-generating layer having n-type semiconductor characteristics and a charge-generating layer having p-type semiconductor characteristics: (Sa/Sm)−1  (I) wherein Sa is the actual surface area of the external surface of the cylindrical electrically conductive support and Sm is the theoretical surface area thereof calculated on the assumption that the support is an ideal cylinder. The organic photoconductor of the present invention employs an inexpensive cylindrical electrically conductive support and is excellent in electrical properties and image quality despite the use of the inexpensive support.

摘要翻译： 公开了一种有机光电导体，其包括圆柱形导电支撑体，并且依次形成电荷产生层和电荷输送层，圆柱形导电载体的外表面具有如所定义的表面积指数 通过下述式（I）表示0.01〜0.10，并且具有包含具有n型半导体特性的电荷产生层和具有p型半导体特性的电荷产生层的多层结构的电荷产生层：其中Sa 是圆柱形导电支撑体的外表面的实际表面积，并且Sm是在假定支撑件是理想气缸的情况下计算的理论表面积。 本发明的有机感光体采用廉价的圆柱状导电性支撑体，尽管使用廉价的载体，但电气性能和图像质量优异。