Developing device, and controlling method thereof
US8285164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2010 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Nov 20, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0648
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device is provided with a developer transporting member for transporting a developer containing a toner and a carrier; a toner transporting member opposite to the developer transporting member and opposite to an electrostatic latent image carrying member; a first electric field forming device, which is composed of a power source for the developer transporting member and a power source for the toner transporting member, for shifting the toner in the developer held onto the developer transporting member to the toner transporting member; and a second electric field forming device for shifting the toner held onto the toner transporting member to an electrostatic latent image on the carrying member. Operation of the first electric field forming device is controlled based on an electric current flowing in the developer transporting member power source, which is detected by a detecting block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.