Abstract: A carrier for a developer includes carrier particles. The carrier particles have a sea island structure including a sea portion and an island portion on the surface. The island portion contains a nitrogen-containing silicone resin. The sea portion contains a nitrogen-free silicone resin. The area ratio of the island portion in the total area of the surface of the carrier particle is 20% or more and 40% or less.

Abstract: A carrier for a developer includes carrier particles. The carrier particles have a sea island structure including a sea portion and an island portion on the surface. The island portion contains a nitrogen-containing silicone resin. The sea portion contains a nitrogen-free silicone resin. The area ratio of the island portion in the total area of the surface of the carrier particle is 20% or more and 40% or less.

Abstract: A toner includes toner particles. The toner particles each include a toner core containing a binder resin and a shell layer covering a surface of the toner core. The shell layers contain a branched macromolecule. The branched macromolecule includes a repeating unit having an oxazoline group. The branched macromolecule satisfies a relationship represented by rB/rL?0.80, where rB represents a radius of gyration of the branched macromolecule when an absolute molecular weight of the branched macromolecule is 40,000, and rL represents a radius of gyration of a linear macromolecule including a main chain having the same structure as a main chain of the branched macromolecule when an absolute molecular weight of the linear macromolecule is 40,000. rB and rL are each a radius of gyration measured by gel permeation chromatography using a multi-angle laser light scattering detector.

Abstract: A toner includes toner particles. The toner particles each include a toner core containing a binder resin and a shell layer covering a surface of the toner core. The shell layers contain a branched macromolecule. The branched macromolecule includes a repeating unit having an oxazoline group. The branched macromolecule satisfies a relationship represented by rB/rL?0.80, where rB represents a radius of gyration of the branched macromolecule when an absolute molecular weight of the branched macromolecule is 40,000, and rL represents a radius of gyration of a linear macromolecule including a main chain having the same structure as a main chain of the branched macromolecule when an absolute molecular weight of the linear macromolecule is 40,000. rB and rL are each a radius of gyration measured by gel permeation chromatography using a multi-angle laser light scattering detector.

Abstract: An electrostatic latent image developing toner includes a plurality of toner particles each including a toner mother particle and an external additive attached to a surface of the toner mother particle. The external additive includes a plurality of resin particles each containing first temperature responsive polymer domains and second temperature responsive polymer domains. The second temperature responsive polymer domains have a lower critical solution temperature (LCST) higher than that of the first temperature responsive polymer domains.

Abstract: An electrostatic latent image developing toner includes a plurality of toner particles each including a toner mother particle and an external additive attached to a surface of the toner mother particle. The external additive includes a plurality of resin particles each containing first temperature responsive polymer domains and second temperature responsive polymer domains. The second temperature responsive polymer domains have a lower critical solution temperature (LCST) higher than that of the first temperature responsive polymer domains.