Electrophotographic photosensitive member, process for production thereof, process cartridge and electrophotographic apparatus
US6623899B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Aug 7, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/14704
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photosensitive member exhibiting good potential characteristic and image forming characteristic fee from difficulties, such as lower image density, black spots and fog or interference fringes in halftone images, over wide temperature and humidity environment condition, is provided by inserting a specific intermediate layer between a support and a photosensitive layer. The intermediate layer comprises at at least 0.5 &mgr;m-thick layer of aggregated particles having a composition represented by formula (1) below:Al2O3.nH2O  (1), wherein n is a number of at least 0 representing a degree of hydration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.