Developing device and image forming apparatus
US8953989B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2012 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Mar 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0648
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes a first developing roller, a second developing roller, a layer regulation member, a pair of division magnetic poles that divide a developer which is held by the second developing roller after passing through the layer regulation member and transfer the developer to the first developing roller, and a transfer amount regulation member that has a plate shape, is provided in a developer transfer path formed by the pair of division magnetic poles between the first developing roller and the second developing roller so as to extend in an axial direction of the first and second developing rollers, and is provided with a slit which regulates the amount of developer passing therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.