Developing agent carrier having a sealing mechanism at each end of a developing roller
US6496669B2 · kind B2 · utility
25Cited by
15References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2002 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Jan 24, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1648
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In order to prevent toner leaks from both ends of a developing roller disposed within a case accommodating polymerized toner, side seals each having a TEFLON® (polytetrafluoroethylene) felt member on its surface are provided to make sliding contact with a surface of the developing roller. To prevent toner leaks from the ends of the developing roller, a film or resin stopper is disposed at a lower-end front edge of the case to oppose the felt members and to stop the toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.