| 摘要 |
<p>PURPOSE:To provide an electrophotographic magnetic carrier giving high image quality, having high durability, adaptability to a high-speed machine and environmental stability, causing no color stain and capable of adjusting electrostatic charge to various toners. CONSTITUTION:Composite particles consisting of ferromagnetic fine particles and a resin are used as the core particles of a carrier obtd. by coating the surfaces of core particles with silicone resin contg. an electric conductive substance, composite particles consisting of ferromagnetic fine particles and a resin are used as the core particles of a carrier obtd. by coating the surfaces of core particles with silicone resin contg. a coupling agent, or an electric conductive substance and a coupling agent are simultaneously used in silicone resin coating. The deterioration of electrostatic chargeability and spending are prevented.</p> |
