Carrier, developer, and image forming method
AssigneeRicoh Company, Ltd.
InventorsMinoru Masuda, Kimitoshi Yamaguchi, Yutaka Takahashi, Koichi Sakata, Hitoshi Iwatsuki
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Abstract
The present invention provides a carrier which includes core material particles, and a coating layer on surfaces of the core material particles, wherein the coating layer contains a crosslinked product which is obtained by condensation of a cone resin with an organic zirconium catalyst, the silicone resin having at least one of a silanol group and a functional group capable of generating a silanol group by means of hydrolysis.
Claims15
A carrier comprising:
- core material particles, and
- a coating layer on surfaces of the core material particles,
- wherein the coating layer comprises a crosslinked product which is obtained by a process comprising condensation of a silicone resin with an organic zirconium catalyst, the silicone resin having at least one of a silanol group and a functional group capable of generating a silanol group by means of hydrolysis.
12-13. (canceled)
An image forming method comprising:
- forming a latent electrostatic image on a surface of a latent electrostatic image bearing member,
- developing the latent electrostatic image using a developer to form a visible image,
- transferring the visible image onto a recording medium, and
- fixing the transferred image on the recording medium,
- wherein the developer comprises a carrier, and
- a toner,
- wherein the carrier comprises core material particles, and a coating layer on surfaces of the core material particles, and
- wherein the coating layer comprises a crosslinked product which is obtained by condensation of a silicone resin with an organic zirconium catalyst, the silicone resin having at least one of a silanol group and a functional group capable of generating a silanol group by means of hydrolysis.
(canceled)
A supplemental developer comprising:
- a carrier and
- a toner in an amount of 2 parts by mass to 50 parts by mass being mixed with 1 part by mass of the carrier,
- wherein the carrier comprises core material particles, and a coating layer on surfaces of the core material particles, and
- wherein the coating layer comprises a crosslinked product which is obtained by condensation of a silicone resin with an organic zirconium catalyst, the silicone resin having at least one of a silanol group and a functional group capable of generating a silanol group by means of hydrolysis.
Dependencies are inferred from the claim text.