Electrophotographic photosensitive member
US5047304A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1989 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Oct 18, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0683
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photosensitive member having a photosensitive layer on an electroconductive support, comprises an azo pigment represented by the general formula (1) as a charge-generating substance in the photosensitive layer ##STR1## wherein A.sub.1 and A.sub.2 are respectively an aromatic radical or an heterocyclic radical which may be linked through a linking radical; B is a radical necessary for forming together with the carbon atoms a five-membered, six-membered, or seven-membered ring which may be condensed with an aromatic ring; X is a radical condensing with the aromatic ring to form a polycyclic aromatic or heterocyclic ring; Y is oxygen, sulfur, dicyanomethylene, or cyanomethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.