Electrophotographic photoreceptor and image forming apparatus
US7625682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2005 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Apr 5, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0668
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photoreceptor having an organic photosensitive layer at the surface layer is provided which can improve the wear resistance, durability and operation stability of the surface layer and can form images with no injury and unevenness in the density for a long period of time. The electrophotographic photoreceptor includes a conductive substrate, an undercoat layer, and a photosensitive layer having a charge generating layer and a charge transporting layer. In the photoreceptor, the photosensitive layer has a creep value CIτ of 2.70% or more and an elastic ratio ηHU of 47% or more in a case where an indentation maximum load of 5 mN is loaded on the surface under a circumstance at a temperature of 25° C. and at a relatively humidity of 50%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.