MAGNETIC PARTICLE DISPERSED COMPOSITE PARTICLES FOR ELECTRIFICATION, ELECTRIFYING MEMBER USING THE SAME, ELECTRIFYING DEVICE, ELECTROPHOTOGRAPHIC DEVICE AND PROCESS CARTRIDGE

摘要

PROBLEM TO BE SOLVED: To provide magnetic particle dispersed composite particles having stable electrostatic property in continuous use and durable for long-term use.;SOLUTION: The magnetic particle dispersed composite particles have a bonding resin and magnetic particles dispersed in the bonding resin. The amount of the magnetic particles is 81-98 wt.% of the amount of the composite particles, the standard deviation of the minor axis size to major axis size ratio of the composite particles having ≥5 μm particle diameter is ≥0.08 and the volume resistivity of the composite particles is 104-109 Ωcm.;COPYRIGHT: (C)2000,JPO