Chemically prepared toner (CP-toner) has been a popular research subject recently, especially in color printing application. Spherical shape is one of the most noticeable traits of CP-toner, and is attributed to as one of the advantages for superior print quality and toner transfer efficiency. Nevertheless, it is also well-known that certain modification of the spherical shape is essential to achieve an optimized toner performance to include other characters, such as OPC cleanness.This paper is to explore the feasibility of using traditional pulverized produced non-spherical toner (TP-toner) and applying a “rounding” surface treatment process to create spherical toner (RST-toner). The performance of RST-toner, CP-toner, and nonspherical TP-toner will then be compared. The parameters for comparison are: transfer efficiency, image density, and other print quality in general.This paper shows when TP-toner treated with “rounding” surface treatment process in addition to proper post blending material and process, the performance of the RST-toner can be significantly improved.