Developer carrying device and image forming device
US8265530B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2009 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Dec 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0869
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer carrying device is provided with a group of carrying electrodes configured to form a traveling wave field as voltages are sequentially applied thereto, charged developer being carried by an effect of the traveling wave field, a developer carrying member having a surface on which the group of carrying electrodes are arranged, and a plurality of leveling electrodes provided above the surface and configured to form electric fields in a direction substantially along the surface, the plurality of leveling electrodes being needle like electrodes extending in a direction intersecting with the surface, the plurality of leveling electrodes being spaced from each other in a direction along the surface and intersecting with a direction in which the developer is carried.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.