Image formation device and developer supply device
US8145103B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2009 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jun 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0634
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided an image formation device including a developer holding body having a developer holding surface; and a developer supply unit to supply the developer to a position facing the developer holding surface by carrying the developer in a developer transport direction intersecting with the main scanning direction through use of effect of an electric field. The developer supply unit includes a plurality of carrying electrodes each of which is formed to have a longer side extending along the main scanning direction. The carrying electrodes are arranged along the developer transport direction to carry the developer when a drive voltage is applied to the carrying electrodes. The developer supply unit has a developer carrying area formed such that, in the main scanning direction, the developer carrying area becomes narrower from an upstream side in the developer transport direction toward the position along the developer transport direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.