Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 23, 2021
Patent Application Number
16781454
Date Filed
February 4, 2020
Patent Primary Examiner
Patent abstract
A two-component developer includes a toner including toner particles and a carrier including carrier particles. The toner particles each include a toner mother particle and an external additive attached to a surface of the toner mother particle. The external additive includes external additive particles. The external additive particles each include a base containing strontium titanate, a conductive layer covering the base, and a surface treatment layer either directly or indirectly covering the conductive layer. The surface treated layer contains a component derived from a hydrophobizing agent.
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