Developing device and image forming apparatus
US10684572B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2018 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Mar 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0634
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes a housing including a development opening and a containing unit that contains a developer, a developer carrier that rotates to pass through the development opening while holding the developer in the containing unit of the housing, an inlet portion of a flow path located in the housing at a portion including a downstream edge portion of the development opening on a downstream side in a rotation direction of the developer carrier, the inlet portion taking in part of an airflow caused by a rotation of the developer carrier to allow the part of the airflow to flow over an outer surface of the housing, and a guide member extending toward the developer carrier from a portion of the housing on a side of the inlet portion opposite to the development opening to guide the part of the airflow to the inlet portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.