Patent ID: 8142974

Claim:
A liquid developer, comprising: an insulation liquid; toner particles dispersed in the insulation liquid and each formed of a material containing a polyester resin, the polyester resin containing a low molecular weight polyester resin having a weight-average molecular weight Mw 1 of 3,000 to 12,000 and a high molecular weight polyester resin having a weight-average molecular weight Mw 2 of 20,000 to 400,000; a dispersant dissolved in the insulation liquid and including a polymer dispersant having a 12-hydroxystearic skeleton in a chemical structure thereof; and a charge control agent dissolved in the insulation liquid; wherein 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.