Developing device and image forming apparatus provided therewith
US9063468B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2014 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0838
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes: a housing, a refill developer storage part, a developing roller, a developer conveyance path, a developer receiving port, a conveyance member, and a magnetic member. The developing roller is driven into rotation in the developing housing and carries a toner on a circumferential surface thereof. The toner is conveyed inside the first conveyance path and the second conveyance path of the developing housing in a circulating manner. A first stirring screw is disposed on the first conveyance path and conveys the toner in a first direction. Downstream of the toner refill port, a magnet is arranged. The magnetic member forms a magnetic brush from a top panel of the developing housing towards the first stirring screw. A refill toner flowed-in through the toner refill port is so conveyed as to fall below the magnetic brush whereby the refill toner is favorably stirred with a surrounding toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.