Detecting completion of injection of toner of toner refill cartridge
US11067917B2 · kind B2 · utility
0Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2019 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Feb 28, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1676
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner refill cartridge includes a body in which toner is accommodated, a plunger inserted into the body and movably coupled to the body in a longitudinal direction of the body to push the toner out of the body, a toner injection completion signal generator used to detect toner injection completion according to movement of the plunger, and a connection interface located at a tip portion of the body and connectable to an image forming apparatus to transfer information about a toner refill cartridge to the image forming apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.