Controlling apparatus for developing roller, image forming device having the same, and developer controlling method thereof
US7406274B2 · kind B2 · utility
2Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2005 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Oct 13, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus having a developer controlling apparatus for a developing roller is provided to uniformly control an amount of developer deposited on the developing roller and a developer controlling method thereof. The apparatus includes a sensing part having a first sensor which senses a conductivity of a liquid developer and a second sensor which senses a density of the liquid developer. A control part controls a voltage applied to the developing roller and/or a deposit roller according to the conductivity and the density sensed by the sensing part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.