Patent ID: 8778587

Claim:
A carrier for developing an electrostatic latent image, comprising: a particulate core material having a magnetism having developed spontaneous magnetization; and a covering layer comprising an electroconductive material, covering the surface of the particulate core material, wherein a single phase of a magnetoplumbite ferrite or a calcium ferrite is partially formed on the surface of the particulate core material, wherein the carrier has an electrical resistivity Log R [Ωcm] of from 8.0 to 12.0 when measured by a method, comprising: filling the carrier in a cell containing a pair of facing electrodes, each having a surface area of 2×4 [cm 2 ] with a gap of 2 [mm] therebetween; and applying a DC voltage of 1,000 [V] therebetween to measure a DC resistivity, and a weight-average particle diameter (Dw) of from 25 to 45 μm.