Toner using resin being insoluble in organic solvents and method for preparing the same

A method of preparing a toner, the method comprising:

• dry-milling an organic solvent-insoluble resin to prepare fine particles or wet-dispersing the organic solvent-insoluble resin in an organic solvent to prepare a fine suspension;
• adding an acid group-containing resin, a coloring agent, and at least one additive to an organic solvent and then mixing them to prepare a toner mixture;
• adding the fine particles or fine suspension of the organic solvent-insoluble resin to the toner mixture to prepare an insoluble resin-toner mixture;
• adding the insoluble resin-toner mixture to a dispersion medium to prepare a fine toner suspension;
• and
• removing the organic solvent from the fine toner suspension to prepare a toner composition,
• wherein the organic solvent-insoluble resin is a crosslinked polyester resin or a cyclic olefin co-polymer (COC) resin, and the ratio of the organic solvent-insoluble resin to the acid group-containing resin is in the range of 5:95 to 40:60 on a weight basis.