Electrophotographic photosensitive member and electrophotographic apparatus
US8445168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | May 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/14704
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an electrophotographic photosensitive member including a photoconductive layer, an intermediate layer made of hydrogenated amorphous silicon carbide on the photoconductive layer, and a surface layer made of hydrogenated amorphous silicon carbide on the intermediate layer, wherein a ratio (C/(Si+C); C2) in the surface layer is 0.61 to 0.75, and a sum of atom density of silicon and carbon is 6.60×1022 atoms/cm3 or more, a ratio (C/(Si+C); C1) and a sum (D1) of atom density of silicon and carbon in the intermediate layer increase continuously from the photoconductive layer toward the surface layer without exceeding C2 and D2, and the intermediate layer has a continuous region in which C1 is 0.25 to C2 while D1 is 5.50×1022 to 6.45×1022 atoms/cm3, the region being 150 nm or larger in a layer thickness direction, and an electrophotographic apparatus equipped therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.