CARRIER FOR ELECTROSTATIC LATENT IMAGE DEVELOPER, TWO-COMPONENT DEVELOPER, IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING METHOD

To provide a carrier for electrostatic latent image developer that is excellent in resistance stability and can prevent a change in image quality over a long period.SOLUTION: A carrier for electrostatic latent image developer has a core material particle having magnetism, and a resin layer covering...

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Bibliographische Detailangaben
Hauptverfasser: MASUKO KAEDE, TAKEUCHI KENTO, SUZUKI TOMOMI, NAGAYAMA MASASHI, KISHIDA HIROYUKI, SUGANUMA TORU
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a carrier for electrostatic latent image developer that is excellent in resistance stability and can prevent a change in image quality over a long period.SOLUTION: A carrier for electrostatic latent image developer has a core material particle having magnetism, and a resin layer covering the surface of the core material particle, and the resin layer includes a conductive fine particle having a metal substrate covered by a conductive layer. The surface roughness Rz of the core material particle is 2 μm or more and 3 μm or less, and the particle diameter of the conductive fine particle is 400 nm or more and 800 nm or less.SELECTED DRAWING: None 【課題】抵抗安定性に優れ、長期間に亘って画質の変動を抑えることができる静電潜像現像剤用キャリアを提供すること。【解決手段】磁性を有する芯材粒子と、前記芯材粒子の表面を被覆する樹脂層と、を有し、前記樹脂層中に金属基体に導電層が被覆された導電性微粒子が含まれる静電潜像現像剤用キャリアであって、前記芯材粒子の表面粗さRzが2μm以上3μm以下であり、前記導電性微粒子の粒径が400nm以上800nm以下である。【選択図】なし