Developing apparatus
US9841703B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2016 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Aug 11, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0844
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing apparatus includes a developing container containing a developer and a stirring-conveying screw configured to feed the developer. The stirring-conveying screw includes a first feeding screw portion to feed the developer in a first direction, a second feeding screw portion to feed the developer in an opposite direction, and a third feeding screw portion. A first feeding passageway accommodates parts of the feeding screw portions, and a second feeding passageway is provided in fluid communication with the first feeding passageway. A bottom surface portion is disposed proximate to the communication opening and has a first portion provided at a position higher than a bottom surface of the second feeding screw and a second portion provided at a position lower than a bottom-most portion of the communication opening. The bottom surface portion is located downstream of the second feeding screw and faces the third feeding screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.