Electrophotographic photoreceptor and coating composition for charge generating layer
US6291120A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | May 11, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/103
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An object of the invention is to obtain an electrophotographic photoreceptor having high sensitivity, high image quality, high stability and high resolution. A charge generating layer of the electrophotographic photoreceptor contains, as a charge generating substance, a crystalline titanyl phthalocyanine composition exhibiting, in an X-ray diffraction spectrum of a CuK.alpha. characteristic X-ray (wavelength: 1.5418 .ANG.), at least four diffraction peaks at Bragg angles (2.theta..+-.0.2.degree.) of 10.0.degree. or lower, and a diffraction peak at a Bragg angle of 27.2.degree. having an intensity smaller than the maximum diffraction intensity of the four diffraction peaks, or a lowly crystalline titanyl phthalocyanine composition exhibiting a diffraction peak having the maximum diffraction intensity at a Bragg angle (2.theta..+-.0.2.degree.) of 27.3.degree.. A charge transporting layer of the electrophotographic photoreceptor contains, as a charge transporting substance, a bisamine compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.