Apparatus and method for image formation with a liquid developer
US6600890B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Oct 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Image forming apparatus which form an image on a substrate and uses a liquid developer containing toner particles and a solvent. One embodiment includes a latent image retaining body, a first developing surface facing the latent image retaining body at a first development station, a latent image forming unit, and a second developing surface facing the latent image retaining body at a second development station. The latent image retaining body has a photosensitive layer which has a dielectric constant ∈p [C2/Nm2] and an average thickness dp [m]. The photosensitive layer retains an image developed by the first developing surface and a latent image comprising image and non-image regions formed by the latent image forming unit. The second developing surface is supplied with a developing electrical potential having an electrical potential difference &Dgr;V from an electrical potential of non-image region of the latent image. The plurality of toner particles of the first liquid developer has a volume density &rgr;m [kg/m3], a surface density mr [kg/m2], a dielectric constant ∈r [C2/Nm2], an average radius r [m], and a density of electrical charge qr [C/kg], and the image deve…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.