Toner conveying device, developing device, and image forming device having the same
US7555247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2006 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Jan 22, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0838
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes a container for containing toner, a rotatable shaft provided in the container, a spiral shaped blade formed on an outer circumference of the shaft, and a first spiral member for conveying the toner in the longitudinal direction of the shaft by means of rotation. In addition, a toner removing member is provided for removing the toner attached to the first spiral member. Then, by rotation of the first spiral member, the toner removing member is moved in the longitudinal direction of the shaft and the direction that is orthogonal to the longitudinal direction of the shaft so as to be in contact with the surface of the first spiral member. Accordingly, it is possible to adequately scrape the toner off the spiral shaped blade and the shaft, thereby effectively prevent an aggregation of toner from occurring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.