Developing device and image forming apparatus having the same
US7920804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2009 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | May 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0891
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device according to the present invention includes a developer storing section storing a developer, a stirring member disposed in the developer storing section and transporting the developer while stirring the developer, a developer carrier receiving the developer from the developer storing section and carrying the developer, a developer regulating member regulating the amount of the developer received by the developer carrier from the developer storing section, and a heat-dissipating member disposed at a position in contact with the developer and capable of dissipating heat of the developer. The heat-dissipating member has a surface in contact with the developer and the contact surface of the heat-dissipating member has an arithmetic surface roughness Ra1 that is set to be equal to or less than ⅓ of the volume average particle size of toner particles contained in the developer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.