Developing apparatus and image forming machine
US8023839B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2009 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Apr 28, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0893
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The developing apparatus, having stirring members for conveying and stirring developer-tank-contained developer and a developer holder, comprises a developer replenishing tank; a toner concentration detecting sensor; a trickle-type discharging mechanism; a developer amount estimating sensor; and a controller for controlling replenishment operation for replenishing the toner and the carrier for replenishment to the developer tank when the toner concentration is lower than a predetermined reference toner concentration, wherein the controller determines the amounts of the toner and the carrier to be replenished on the basis of the calculated toner concentration and the estimated amount of the developer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.