Electrophotographic photoreceptor, method of producing the same, process cartridge, and image-forming apparatus
US7642025B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2007 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Mar 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G17/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides an electrophotographic photoreceptor having a cylindrical support, and a charge-generating layer and a charge-transporting layer on or above the cylindrical support, wherein the thickness of the charge-generating layer is increased from the central portion in the axial direction of the cylindrical support towards both end portions thereof, and the difference in thickness between the two end portions is 2.5% or less of an average thickness of the charge-generating layer. Also disclosed are a method of producing the electrophotographic photoreceptor, a process cartridge including the electrophotographic photoreceptor, and an image-forming apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.