Developing method utilizing pulverized, colored, crosslinked, vinylic polymer resin as toner

A method for developing a latent electrostatic image bearing member comprising forming a latent electrostatic image on said member and applying a developer thereto, said developer including at least a toner where said toner is affected by said latent image to effect development thereof, said toner comprising a pulverized, colored, crosslinked, vinylic polymer resin obtained by (a) polymerizing the monomer thereof in the presence of a crosslinking agent 0.005 - 20% by weight of the monomer, said crosslinking agent being selected from the group consisting of aromatic divinyl compounds, diethylenecarboxylate esters, divinyl sulfide, divinyl solfone, and mixtures thereof and a molecular weight control agent 0 - 20% by weight of the monomer, said monomer being non-soluble in said molecular weight control agent, (b) mixing at least one coloring material with the thus obtained resin and (c) pulverizing the obtained mixture.