Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
US7592113B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2008 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | May 30, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/144
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photosensitive member includes a support, a charge generation layer containing a charge generating material, and a binder resin, on the support, and a hole transport layer containing a hole transporting material, on the charge generation layer. The charge generation layer contains an acenaphthene compound represented by the following formula:Z401 and Z402 each independently represent an oxygen atom, a ═C(CN)2 group or a ═N Ph group; and R401 and R402 each independently represented a hydrogen atom, a halogen atom, a nitro group, a substituted or unsubstituted alkyl group or a substituted or unsubstituted alkoxy group. The acenaphthene compound has the structure represented by the above formula (4) is contained in the charge generation layer in an amount of from 51% by weight to 80% by weight based on the weight of the binder resin in the charge generation layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.