| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid developer excellent in positive charging characteristic and also excellent in long-term dispersion stability of toner particles, and to provide an image forming apparatus using such a liquid developer. <P>SOLUTION: The liquid developer includes: toner particles containing a rosin resin; an insulating liquid in which the toner particles are dispersed; and a dispersant having plural cyclic structures containing a secondary amine and/or a tertiary amine. The dispersant preferably has plural carboxylic acid groups. The carboxylic acid preferably forms salt with alkyl ammonium ions. <P>COPYRIGHT: (C)2010,JPO&INPIT |
