Developing device and image forming apparatus including the same
US8744318B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2011 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Jan 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0827
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a developing device including: a developing container partitioned into a stirring-transport chamber, a supplying-transport chamber, and a collecting-transport chamber that are arranged substantially in parallel with one another, for storing a two-component developer; a developer carrying member for carrying the developer on a surface thereof; a supplying-transport member located within the supplying-transport chamber; a stirring-transport member located within the stirring-transport chamber; a collecting-transport member located within the collecting-transport chamber, for stirring and transporting the developer in the same direction as the supplying-transport member and at the different speed from the supplying-transport member; a first developer passage for passing the developer from the stirring-transport chamber to the supplying-transport chamber; a second developer passage for passing the developer from the supplying-transport chamber to the stirring-transport chamber; and a communication portion for passing the developer from the collecting-transport chamber to the supplying-transport chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.