Developing apparatus with agitating portion and image forming apparatus provided with the same
US8190064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2010 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Aug 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0822
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A housing of a developing apparatus is provided with a conveying member and first and second agitating members. A guide is provided in an inner bottom surface of the housing between the first and second agitating members. The guide has a mountain shape with a wide foot portion in a cross sectional shape which is orthogonal to an axial direction of rotating shafts of the first and second agitating members. The first and second agitating are arranged in such a manner that gaps between respective outermost portions thereof and the inner bottom surface of the housing and the guide become equal to or more than 1.5 mm and less than 3 mm. A discharge portion is provided on a downstream side of a developer agitating portion in a developer conveying direction of the first and second agitating members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.