Stirring conveyance member, developing device including the same, and image forming apparatus
US10156812B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2017 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Dec 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/083
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A stirring conveyance member includes a rotary shaft, a first spiral blade, and a second spiral blade. The first spiral blade has first cutouts each provided in a specific region adjacent to and upstream of a point of intersection with the second spiral blade in the conveyance direction of the powder by the first spiral blade. The second spiral blade has second cutouts each provided in a specific region adjacent to and upstream of a point of intersection with the first spiral blade in a conveyance direction of the powder by the second spiral blade. A radial height of the first spiral blade in portions where the first cutouts are provided is lower than a radial height of the second spiral blade in portions where the second cutouts are not provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.