Developing device and image forming apparatus
US8126379B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2009 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Aug 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0609
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a developing device which is capable of suppressing the generation of a fogging phenomenon and deposition of carrier particles to an electrostatic latent image carrier and developing the electrostatic latent image efficiently, the device includes a development sleeve and a magnet body onto which the sleeve is fitted, and using a two-component developer. An angular position which indicates the peak value of the magnetic flux density in the normal direction produced by a development pole of the magnet body is shifted downstream from the center position of the development pole in the direction of movement of the surface of a photosensitive member in a development region. The present invention also provides an image forming apparatus which can form high-quality images with reduced noise such as fogging by mounting the developing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.