Developing device for an image forming apparatus and bearing seal structure for the same
US6980753B2 · kind B2 · utility
3Cited by
20References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2004 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | May 15, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0817
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A bearing seal structure of the present invention is applicable to a developing device included in an image forming apparatus. The structure includes two seal members included in a bearing portion and each having a respective elastic seal lip configured to seal the outer periphery of a shaft in contact therewith. Grease is sealed between the two seal members and between one of the seal members closer to the bearing portion than the other and the bearing portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.