ONE-COMPONENT MAGNETIC DEVELOPER AND DEVELOPING METHOD

摘要

PURPOSE:To obtain a one-component magnetic developer having satisfactory electrostatic charge characteristics and excellent in durability. CONSTITUTION:This one-component magnetic developer contg. at least a resin, magnetic powder and a releasing agent is composed of a magnetic toner and 1X10<-3>-5X10<-2> number% releasing agent-based particles basing on the amt. of the magnetic toner. The vol. average particle diameter (Dp) of the releasing agent-contg. particles and the vol. average particle diameter (Dt) of the magnetic toner satisfy the relation of 0.8