demonstrated the best dispersion and compatibility and P.B. 15:3 demonstrated the worst dispersion in terms of polar toner production medium (acrylic resin). Thus yellow toner has smaller particle size than does the magenta toner and the blue toner (Table 2). In the case of magenta toner, a combination of polar P.R. 57:1 and non-polar P.R. 122 made the mixer mid-polar, which resulted in medium particle size, while