Electro-photographic photoreceptor and image-forming apparatus using same
US6143453A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1999 |
| Grant date | Nov 7, 2000 |
| Priority date | — |
| Expiry date | Aug 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/144
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The object of the invention is to provide an electro-photographic photoreceptor which has high sensitivity to long wavelength light to form a less defective image and exhibits a sufficient electrical charging property at the first rotation of the receptor to rapidly form an image. The electro-photographic photoreceptor is constructed by laminating an intermediate layer, a charge generation layer and a charge transport layer in order on a conductive support. The intermediate layer contains an adhesive resin, a carboxylic acid salt of the following structural formula (I), and titanium oxide. The content of the carboxylic acid salt is in a range of 0.5-5 weight % and that of titanium oxide in 10-50 weight % for the total amount of the intermediate layer. EQU (R(COO).sub.k).sub.m A.sub.n (I) wherein R is a straight, branched or cyclic, saturated or unsaturated, and mono- to tetra-valent hydrocarbon group; A is an alkali metal or alkaline earth metal; and k, m and n each represent an integer of 1-4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.