Positively-charged electrophotographic organic photoreceptor
US7229728B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2003 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Jun 16, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/14769
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A positively-charged electrophotographic organic photoreceptor includes an electrically conductive support, and a charge transport layer and a charge generating layer sequentially stacked on the electrically conductive support. The charge generating layer is formed by coating a charge generating layer forming composition that includes a fluorene compound, a charge generating material, a binder resin and an organic solvent on the charge transport layer, and drying. The organic photoreceptor has high sensitivity, while suppressing contamination of a charge generating layer during coating, and thicknesses of a charge transport layer and a charge generating layer may be adjusted. Also, the electrostatic properties of the organic photoreceptor, including charge potential and exposure potential, may be easily adjusted. The organic photoreceptor may be applied to an electrophotographic development system using a liquid toner having a small particle size and a high retained charge amount with an increased surface charge amount of the organic photoreceptor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.