Developing device and developer carrying member
US5893014A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1998 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | May 5, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0861
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a developing device according to the present invention, a developer carrying member in which a dielectric layer is formed on the surface of a conductive base substrate is used. In conveying a monocomponent developer containing no carrier to a developing area opposite to the image carrying member with the developer held on the surface of the developer carrying member, to develop a latent image formed on the image carrying member by the developer, the dielectric layer in the developer carrying member satisfies the following conditions: EQU t.gtoreq.50, .di-elect cons..ltoreq.10, and 15.ltoreq.t/.di-elect cons..ltoreq.35 PA1 where t (.mu.m) is the thickness of the dielectric layer, and .di-elect cons. is the relative dielectric constant of the dielectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.