Carrier and two-component developer
AssigneeSharp Kabushiki Kaisha
InventorToru Nishikawa
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Abstract
A carrier and a two-component developer are provided. A coating resin layer for coating a core material contains fine particles of titanium oxide which comprise an anatase-type crystal and a rutile-type crystal, and a carrier coating amount of the coating resin layer falls in a range of from 5% by weight to 20% by weight. In addition, a content rate of the rutile-type crystal falls in a range of from 5% to 20% on the basis of the total amount of crystal, and the weight of the fine particles of titanium oxide falls in a range of from 5% by weight to 50% by weight relative to the weight of the core material. Further, the primary particle size of the fine particles of titanium oxide falls in a range of from 40 nm to 80 nm.
Claims4
A carrier for a two-component developer, comprising
- a core material;
- and
- a coating resin layer with which the core material is coated,
- the coating resin layer being in an amount of from 5% by weight to 20% by weight relative to a weight of the core material, and
- the coating resin layer containing fine particles of titanium oxide having an anatase-type crystal structure and a rutile-type crystal structure,
- wherein a content rate of the rutile-type crystal falls in a range of from 5% to 20% on the basis of the total amount of crystal.
Dependencies are inferred from the claim text.