Electrophotographic photoreceptor, image forming apparatus and process cartridge
US9122183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2013 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Mar 5, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/14791
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photoreceptor, including an electroconductive substrate; a photosensitive layer overlying the electroconductive substrate; and a surface layer overlying the photosensitive layer, wherein the surface layer includes a resin having no charge transportability; and an inorganic particulate material, wherein the inorganic particulate material is a zinc oxide doped with a boron group, and wherein the electrophotographic photoreceptor has a surface specific resistivity (R1) not less than 1013 Ω/cm2 when the surface layer has an electric field intensity of 1×104 V/cm, and a ratio (R1/R15) of the surface specific resistivity (R1) to a surface specific resistivity (R15) when the surface layer has an electric field intensity of 1.5×105 V/cm of from 100 to 5,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.