Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
US11126097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2020 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jun 18, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1814
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is an electrophotographic photosensitive member in which discharge streaks generated in an end portion can be suppressed. The electrophotographic photosensitive member includes a cylindrical support, a charge-generating layer, and a charge-transporting layer in the stated order. In the electrophotographic photosensitive member, when a region between a center position and a 90% position situated at a 90% of a length of from the center position to one end of the electrophotographic photosensitive member in an axial direction thereof from the center position, is defined as a region X, and a region between the 90% position and the end of the electrophotographic photosensitive member is defined as a region Z. Average thicknesses in regions obtained by equally dividing the region X into five and regions obtained by equally dividing the region Z into three satisfy particular relationships.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.