Developing device and regulating member
US5870658A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1998 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Apr 29, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0812
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is directed to a developing device using a developer carrying member in which an insulating layer is formed on the surface of a conductive base substrate for regulating, in conveying a developer to a developing area opposite to an image carrying member with it being held on the surface of the developer carrying member, the amount of the developer conveyed to the developing area upon pressing a regulating member against the surface of the developer carrying member, wherein a regulating member in which a dielectric layer satisfying the following relationship (1) is formed on an electrical conductive member is used as the regulating member, to press the dielectric layer against the developer carrying member: EQU t/.epsilon..gtoreq.10 (1) where t (.mu.m) is the thickness of the dielectric layer, and .epsilon. is the relative dielectric constant of the dielectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.