Developer for developing latent electrostatic images and method of forming images by using the developer

A method of forming images comprising the steps of:

• forming latent electrostatic images on the surface of an amorphous-silicon-based photoconductive layer of an amorphous-silicon-based photoconductor;
• and
• developing said latent electrostatic images to visible toner images formed on said amorphous-silicon-based photoconductive layer by use of a developer comprising (a) a magnetic resin carrier comprising magnetic resin particles, each of said magnetic resin particles comprising a binder resin and finely-divided magnetic particles dispersed in said binder resin, (b) a magnetic powder carrier consisting essentially of magnetic particles, and (c) an abrasive-type toner comprising toner particles, each of said toner particles comprising a toner basic particle and finely-divided particles of an abrasive substance which are fixed on the surface of said toner basic particle.