Developing method and apparatus for a photocopier

摘要

A method of development includes providing a mixture of non-magnetic developer particles and magnetic particles in a developer supply container, carrying the mixture on an insulating surface of an endlessly movable developer carrying member and confining the magnetic particles within the developer supply container by cooperation of a magnetic pole of a fixed magnetic field generator and a magnetic particle confining member. The method also includes providing an electrode opposed to, and extending in a longitudinal direction of, the carrying member, applying a developer application signal between the electrode and the developer carrying member to apply the developer particles only to such an area as corresponds to application of the developer application signal, and developing a latent image on a latent image bearing member with the thus applied developer particles.