Developing apparatus using a dual component developer
US5799234A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1997 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Jan 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0651
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing apparatus comprises: a developer support being disposed in the proximity of or in contact with an image support having a surface on which an electrostatic latent image is formed, the developer support having a peripheral surface supported turnably; and a developing bias power supply for supplying a developing bias voltage between the developer support and the image support, wherein a dual component developer including toner and magnetic carriers is supported on the peripheral surface of the developer support to be transported, and the toner is transferred to the image support in an electric field formed at a position where the image support faces the developer support for forming a toner image, and the developer support has a plurality of magnetic poles for attracting almost one layer of the carriers on the peripheral surface of the developer support almost uniformly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.