Electrophotographic image forming apparatus, toner cartridge for the same, imaging cartridge for the same, and method of controlling toner level in developing chamber of the same
US9703233B2 · kind B2 · utility
0Cited by
4References
13Claims
0Family size
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Key dates
| Filing date | Dec 2, 2016 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Dec 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0894
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.