Developing device having conveyance mixing units
US6343200B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2000 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Jul 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0822
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device for use in an image forming apparatus includes a developing agent supply unit which supplies a developing agent to a photoreceptor, a first mixing unit provided near the developing agent supply unit to convey the developing agent in a first conveyance direction while mixing the developing agent, a second mixing unit provided underneath the first mixing unit to receive the developing agent at a downstream end along the first conveyance direction so as to supply the developing agent to the developing agent supply unit while mixing and conveying the developing agent in a second conveyance direction, and a developing agent scoop-up unit provided substantially in the middle in a height direction between the first mixing unit and the second mixing unit along the second conveyance direction to receive the developing agent from the second mixing unit and draw up the received developing agent to the first mixing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.