TONER, TONER STORED UNIT, AND IMAGE FORMING APPARATUS

• Main Authors: SUZUKI KAZUMI, OGINO KOHTAROH, SUZUKI TERUYUKI, KANEKO AKIHIRO, YAMAUCHI YOSHITAKA, SUZUKI NAMIE, NAKAJIMA HISASHI
• Format: Patent
• Language: Chinese; English
• Published: 04.09.2020
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

Provided is a toner including toner particles, each toner particle includes: a base particle including a binder resin; and external additive particles, wherein the external additive particles includeparticles each having an equivalent circle diameter of 10 nm or greater, a volume average particle diameter of the particles each having an equivalent circle diameter of 10 nm or greater is 80 nm or greater but 140 nm or less, and a ratio (circumscribed circle area/particle area) of a circumscribed circle area of the particle having an equivalent circle diameter of 10 nm or greater to a particle area of the particle having an equivalent circle diameter of 10 nm or greater is 1.60 or greater but 2.60 or less. 提供一种调色剂，其包括调色剂颗粒，各调色剂颗粒包含：包含粘合树脂的基体颗粒；和外添加剂颗粒，其中外添加剂颗粒包括各自具有10nm或更大的等效圆直径的颗粒，各自具有10nm或更大的等效圆直径的颗粒的体均粒径为80nm或更大但140nm或更小，并且具有10nm或更大的等效圆直径的颗粒的外切圆面积对具有10nm或更大的等效圆直径的颗粒的颗粒面积的比率(外切圆面积/颗粒面积)为1.60或更大但2.60或更小。