Electrophotographic photosensitive member with depressed portions, process cartridge holding the electrophotographic photosensitive member and electrophotographic apparatus with the electrophotographic photosensitive member
US7718331B2 · kind B2 · utility
37Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2007 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Jun 28, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photosensitive member is disclosed which is excellent in cleaning performance, has improved durability, and suppresses image defects in various environments. The electrophotographic photosensitive member has a support and a photosensitive layer provided on the support. Depressed portions independent of one another are formed on the surface of the electrophotographic photosensitive member so that the number of the depressed portions per 100 μm square is 76 or more and 1,000 or less. The openings of the depressed portions have an average major axis diameter of more than 3.0 μm and 14.0 μm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.