Reversal electrophotography developing method

摘要

An electrophotography developing method according to this invention uses a one-component magnetic toner having an electric resistivity of 107 or more ohmxcentimeter, still remaining within the range of inter-particle electric induction, and a coercive force of 150 or more oersteds, thereby preventing appearance of fog in a reversal photographic image, which fog otherwise, would appear in case of reversal, magnetic brush development.