Developer supply device
US8406662B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2010 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Feb 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0656
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer supply device, comprising: a casing; first electrodes located at a first most downstream position defining a certain distance with respect to the supply target and positions between the casing and the first most downstream position to form a first traveling electric field; a second electrodes that are located at a second most downstream position defining the certain distance with respect to the supply target and positions between the casing and the second most downstream position to form a second traveling electric field; a power circuit that supplies a first voltage and a second voltage having a same frequency respectively to the first electrodes and the second electrodes such that a phase of voltage change of a first most downstream electrode and a phase of voltage change of a second most downstream electrode shift with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.