Liquid developer and image forming apparatus
US8142974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2009 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jul 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0658
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid developer is provided. The liquid developer comprises an insulation liquid, toner particles dispersed in the insulation liquid, a dispersant dissolved in the insulation liquid; and a charge control agent dissolved in the insulation liquid. The charge control agent is represented by the following chemical formula (I):wherein in the chemical formula (I) R1 represents an alkyl group or alkenyl group having a carbon number in the range of 8 to 22, and R2 represents a hydroxyalkyl group. The liquid developer has both superior dispersibility and a charge characteristic of toner particles. Further, an image forming apparatus is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.