| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid developer having an increased charge amount without increasing the amount of a charge adjusting agent or a dispersant which decreases fixing characteristics of the toner particles, and exhibiting excellent dot reproducibility while reducing image deletion or doubled image. SOLUTION: As the liquid developer includes toner particles containing a colorant and a resin dispersed in a non-aqueous solvent having an electric resistance of not less than 10<SP>9</SP>Ωcm, charges of charged toner particles are inhibited from moving and decrease in charging characteristics are suppressed even without adding a dispersant or a charge control agent that is an external additive causing reduction in the fixing efficiency. By using a non-aqueous solvent having a dielectric constant of 4.0 to 15.0, which means high polarity, as a carrier liquid 91Y, 91M, 91C, 91K, positive charges are easily imparted to the toner particles and more positive charges are retained. Therefore, liquid developers 100Y, 100M, 100C, 100K having a large charge amount and excellent dot reproducibility with reduced image deletion or a doubled image are obtained. COPYRIGHT: (C)2010,JPO&INPIT |
