A carrier and a production method thereof for developing an electrostatic image.

摘要

There is disclosed an electrostatic image-developing carrier having a resin coat layer with an excellent mechanical strength. The carrier is prepared by repeatedly applying a mechanical impact force to the mixture of the core particle and the coating resin particle in a dry condition, wherein a molecular weight distribution chromatogram according to a gel permeation chromatography of a tetrahydro-furansoluble component in the resin coat layer has at least one peak or shoulder in a molecular weight range of 1,000 to 20,000.