Image developing device, process cartridge including image developing device, and image forming device including image developing device
US8805222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Apr 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0132
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image developing device includes a developer supporting body; a first conveyance path in which a first conveyance member is arranged; a second conveyance path in which a second conveyance member is arranged; and a partition member that partitions the first conveyance path and the second conveyance path and that has a first communication port and a second communication port. The first communication path and the second communication path communicates with each other through the first communication port and the second communication port. The image developing device includes a developer amount detection unit that includes an optical detection unit arranged in the second conveyance path and that optically detects an amount of the developer in the image forming device. The developer is caused to accumulate in the vicinity of the developer amount detection unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.