CARRIER FOR TWO-COMPONENT TYPE DEVELOPER

摘要

Disclosed is a ferrite carrier for a two-component type developer, characterized in that the internal pore ratio, based on the area, of carrier particles is adjusted to 3 to 30%, the electric resistance is adjusted within a certain range, and the developing electric field dependency indicating the change ratio of the electric resistance of the particles caused when the electric field is changed is controlled within a specific range. This carrier has a good durability, and when a two-component developer comprising this ferrite carrier is used, there can be obtained a high-quality image in which a solid image area and a fine line image area are clearly reproduced.