Provided is a two-component developer for developing an electrostatic latent image containing: toner particles having toner mother particles and an external additive on a surface of the toner mother particles; and carrier particles, wherein the external additive contains alumina particles; the alumina particles are subjected to a surface modification with a hydrophobilizing agent; among the hydrophobilizing agent existing on the surface of the alumina particles after the surface modification, a ratio of the hydrophobilizing agent in a state of being liberated from the surface is 20% or less when extraction treatment is performed under a predetermined condition; the alumina particles have a number average primary particle diameter in the range of 5 to 60 nm; and the carrier particles have a resin covering layer, and the resin covering layer is formed with an alicyclic (meth)acrylate monomer.

A developing device includes a latent image carrier to form an electrostatic latent image is formed on a surface of the latent image carrier, a developing agent carrier to carry a developing agent including toner on a surface of the developing agent carrier, the developing agent carrier facing the latent image carrier, and a roll-shaped member facing the developing agent carrier to form a first gap and facing the latent image carrier to form a second gap, to form a suction air flow through the first gap and the second gap, to suction toner particles scattered to the first gap between the roll-shaped member and the developing agent carrier and the second gap between the roll-shaped member and the latent image carrier.

An electrophotographic image forming carrier includes core particles and a coating layer coating a surface of the core particles. The coating layer contains antimony-containing particles comprising inorganic fine particles A and antimony-doped tin oxide disposed on a surface of the inorganic fine particles A. The electrophotographic image forming carrier has an apparent density of 2.0 g/cm.sup.3 or more and 2.5 g/cm.sup.3 or less.

Provided is a two-component developer for developing an electrostatic latent image containing: toner particles having toner mother particles and an external additive on a surface of the toner mother particles; and carrier particles, wherein the external additive contains alumina particles; the alumina particles are subjected to a surface modification with a hydrophobilizing agent; among the hydrophobilizing agent existing on the surface of the alumina particles after the surface modification, a ratio of the hydrophobilizing agent in a state of being liberated from the surface is 20% or less when extraction treatment is performed under a predetermined condition; the alumina particles have a number average primary particle diameter in the range of 5 to 60 nm; and the carrier particles have a resin covering layer, and the resin covering layer is formed with an alicyclic (meth)acrylate monomer

A white toner for electrostatic charge image development contains a toner particle that includes a toner base particle containing a binder resin, a white colorant, and a releasing agent, and an external additive, wherein the toner particle contains, as the external additive, a fatty acid metal salt particle having a volume-based median diameter in a range of 0.5 to 1.5 m, and an average circularity of the toner particles is in a range of 0.870 to 0.950.

A white toner for electrostatic charge image development contains a toner particle that includes a toner base particle containing a binder resin, a white colorant, and a releasing agent, and an external additive, wherein the toner particle contains, as the external additive, a fatty acid metal salt particle having a volume-based median diameter in a range of 0.5 to 1.5 m, and an average circularity of the toner particles is in a range of 0.870 to 0.950.

Provided is a toner for electrophotography. The toner includes a toner particle including a binder resin, a colorant, and a releasing agent, and an additive attached to an external surface of the toner particle. The additive includes a quantum dot-inorganic particle composite including a quantum dot and an inorganic particle.

The instant disclosure describes methacrylate coated carrier resins with hydrophobic substituents for charge control and improved RH sensitivity.

The instant disclosure describes methacrylate coated carrier resins with hydrophobic substituents for charge control and improved RH sensitivity.

An object of the present invention is to provide a carrier low in specific gravity and less in both environmental fluctuation and change of the charge amount after aging, an electrophotographic developer using the carrier, and a method of manufacturing the carrier. To achieve the object, the carrier is manufactured by coating a core material composed of a magnetic component and a non-magnetic component with a resin, and the carrier is characterized in that water content is 200 ppm or less and cyclic siloxane content is 100 ppb or less. Further, an electrophotographic developer containing the carrier is provided.