Developing device including regulation member with different diameters of central portion and both end portions
US12001151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2021 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Mar 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0898
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device may include a housing to accommodate a developing agent, a developing roller to convey the developing agent adhered to an outer periphery of the developing roller to an outside of the housing, a regulation member positioned apart from the developing roller and having a circular cross-sectional shape to regulate a thickness of the developing agent adhered to the developing roller, and a sealing member between the regulation member and the housing to prevent leakage of the developing agent. A diameter of a central portion of the regulation member may be different from diameters of both end portions of the regulation member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.