| 摘要 |
<p>PURPOSE:To solve such problems that difference is caused in the electrification performance of the carrier to a toner due to broadening of the particle size distribution of the carrier and sticking of the carrier on a photoreceptor drum is caused especially by carrier particles having a small particle size, and to obtain a carrier for development with which high quality picture images can be stably obtd. for a long time. CONSTITUTION:This electrophotographic carrier is a binder-type carrier produced by mixing an inner additive such as a magnetic powder to a binder resin, and at least two kinds of binder carrier particle groups are mixed to obtain the carrier. The average particle sizes of the carrier particle groups differ from each other. At least one of inner additives mixed to the binder-type carrier shows different states of addition for each carrier particle group.</p> |
