Invention Grant
US09146487B2 Carrier for developing electrostatic latent image, and electrostatic latent image developer 有权
用于显影静电潜像的载体和静电潜像显影剂

Carrier for developing electrostatic latent image, and electrostatic latent image developer
Abstract:
A carrier for developing electrostatic latent images includes a core material; and a covering layer formed of a resin comprising an electroconductive particulate material, overlying the core material, wherein the covering layer includes the electroconductive particulate material in an amount of from 58 to 73% by weight and has a resistivity of from 6.6 to 8.6 Ωcm, and wherein the carrier has a high-brightness contrast part at an areal ratio less than 1% and 40 to 90% based on total area thereof at an acceleration voltage of 0.8 KV and 2.0 KV, respectively in an FE-SEM reflection electron image of the surface thereof.
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