In recent years, environmental issues and energy costs have created a need for lower energy consumption in the fusing systems of printers and copiers. To develop toner for low-energy fusing systems, there are several methods to manufacture polyester chemically prepared toner. But there are still environmental concerns due to the use of organic solvent during manufacturing process. We developed a novel process for aqueous-based polyester chemically prepared toner by using nonionic surfactant. In this study, we report that nano-size emulsions can be obtained for the synthesis of toner particles without any organic solvent. We indicate the relationship between nonionic surfactant and the emulsification of polyester.