Patent ID: 8658340

Claim:
A toner comprising: a binder resin comprising a first binder resin A and a second binder resin B, wherein the second binder resin B is a non-crystalline polyester resin “b” having a polyhydroxy carboxylic acid skeleton in a main chain thereof, wherein the non-crystalline polyester resin “b” has a hydroxyl carboxylic acid skeleton formed of an optically active monomer, and the hydroxyl carboxylic acid skeleton has an optical purity X (%) of 80% or less, which is represented by the following relation: optical purity X (%)=| X ( L form)− X ( D form)| where X (L form) represents an L form ratio (mol %) in optically active monomer conversion and X (D form) represents a D form ratio (mol %) in an optically active monomer conversion; a coloring agent; and a releasing agent, wherein the first binder resin A is formed by reacting a compound A1 having an active hydrogen group with a resin A2 having a portion reactive with the compound A1 in an organic solvent; the resin A2 is formed by reacting a non-crystalline polyester resin “a” having a polyhydroxy carboxylic acid skeleton in a main chain with a compound having the portion reactive with the compound A1 having an active hydrogen group; and the non-crystalline polyester resin “a” is formed by copolymerizing a diol and a cyclic ester of a hydroxycarboxylic acid.