<p>A binder-type magnetic carrier for developing agent comprising a magnetic powder and a binder resin. The carrier particles contain dispersed therein a release agent such as a metal soap and have abrasive or collapsible surfaces. Use of a developing agent which contains the carrier causes the magnetic powder to peel off the carrier particle surfaces maintaining a controlled particle diameter and a fresh carrier surface which reduces the occurrence of spent toner and maintains a stable charging amount of toner.</p>
