carnauba wax fisher and 10 g of polyethylene wax acrowax 5050 under agitation the waxes were completely dissolved in the mixture the mixture was blended with 4 g of azo nitrile v65 waco chemical added as an initiator and then stirred for 5 more minutes to prepare a monomer mixture the monomer mixture thus obtained weighed 245 4 g subsequently the monomer mixture was added to the aqueous dispersion and dispersed in the form of minute droplets in the aqueous dispersion under a shear force at 13 000 rpm with a homogenizer the monomer mixture dispersed as minute droplets in the aqueous dispersion through the homogenization process was stirred with a pedal type agitator 200 rpm at 60 u00b0 c for 10 hours and then at 90 u00b0 c for 3 more hours to prepare a polymerized toner hydrochloric acid hcl was added to a slurry containing the polymerized toner to adjust the ph value to 2 and calcium phosphate was then dissolved in the slurry after removed of water the slurry of the polymerized toner was diluted with distilled water which was twice the total weight of the slurry the resultant slurry was subjected to homogenization under a shear force with a homogenizer and then centrifugal separation at 3 000 rpm for 15 minutes with a centrifugal separator beckman j2 21m rotor ja 14 the routine of dilution homogenization and centrifugal separation was repeatedly carried out three times.