Image forming device
US9213264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Jun 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0893
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming device includes: a developing device which includes a developing unit storing a developer containing a first carrier and a toner and a toner concentration detection unit detecting a toner concentration within the developing unit; and a supply container which stores a supply developer containing a second carrier and the toner, and supplies, based on a detection value by the toner concentration detection unit, the supply developer to the developing unit and discharges an excessive amount of the developer within the developing unit from the developing unit. Then, the setting value of the toner concentration detection unit is corrected based on the presence proportion of the second carrier within the developing unit detected by a calculation unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.