1. A white toner comprising a fixing resin medium and dispersed therein a titanium dioxide pigment of high purity containing at least 99% by weight of TiO.sub.2, not more than 0.1% by weight of Al.sub.2 O.sub.3 and not more than 0.05% by weight of SiO.sub.2 as a white pigment, said titanium dioxide pigment having an average particle diameter of not less than 0.05 microns.