Toner cartridge including shutter rotatable between first position and second position
US11333999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2021 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Jan 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0827
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner cartridge includes a first casing, a second casing, an auger screw, and a shutter. The first casing has a first internal space. The second casing has: a second internal space smaller than the first internal space; a first opening allowing toner in the second internal space to be discharged; and a second opening allowing air in the second internal space to be sent to an outside. The auger screw is rotatable about a first rotation axis and configured to convey toner in the first internal space to the second internal space. The shutter is rotatable relative to the second casing about a second rotation axis between a first position in which the shutter closes the first opening and a second position in which the shutter opens the first opening. In a state where the shutter is at the second position, the shutter does not close the second opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.