Developing device and cartridge
US8320803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2010 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Feb 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/085
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes a developing container for accommodating a developer; a developer carrying member, provided rotatably in the developing container, for carrying and feeding the developer to develop an electrostatic image; a developer feeding member, including an elastic feeding portion and being rotatably provided in the developing container, for feeding the developer in the developing container toward the developer carrying member; and a circulation changing member for changing circulation of the developer in the neighborhood of the developer carrying member. In a plane perpendicular to a rotational axis of the developer carrying member, the circulation changing member is provided in a maximum rotation area of the developer feeding member so as to create a gap between itself and an entire inner surface of the developing container and a gap between itself and the developer carrying member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.