Developing apparatus
US7664442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Apr 9, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0808
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing apparatus including: a developer carrying member carrying a developer with which an electrostatic image on an image bearing member is developed; a developer supplying/removing member having a conductive member and an insulating member on the surface thereof, and provided apart from the developer carrying member to supply and remove the developer to and from the developer carrying member, and moving directions of the developer carrying member and the developer supplying/removing member being opposed in a developer supplying position; and an electric field producing device producing between the developer carrying member and the developer supplying/removing member an oscillating electric field, in which direct potentials of the conductive member and the developer carrying member are the same, or the direct potential of the conductive member, with respect to the direct potential of the developer carrying member, is on the opposite side to a normal charging polarity of the developer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.