Electrophotographic developer giving high quality images

摘要

A developer used in an electrophotographic image formation process is characterised by being of an insulating toner and a conductive carrier and having a powder separation force of 0.1-1 g wt/cm<2> (loading to break up the toner), the process being effected on apparatus comprising (i) a photoconductor comprising a conductive, transparent layer and a photoconductive layer laminated one after the other on a transparent substrate; (ii) a developer device on the photoconductive layer side to contact the developer with the photoconductor and to apply a voltage; and (iii) on the reverse side an illumination device.