| 摘要 |
In order to provide a two-component developer, which suppresses deterioration of charging performance with time of a carrier as a surface treating agent of a toner, caused by adhesion of the toner onto the surface of the carrier, and also has long lifetime and is excellent in durability, a carrier body (core particle) of which surface is porous and uneven and a porosity of 5 to 25% is used as a carrier with a silica previously adhered onto the surface of the carrier body in an amount of 1 to 10 parts by weight based on 1000 parts by weight of the carrier body.
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