ELECTRO-PHOTOGRAPHIC IMAGE FORMATION CARRIER, ELECTRO-PHOTOGRAPHIC IMAGE FORMATION DEVELOPER, ELECTRO-PHOTOGRAPHIC IMAGE FORMATION METHOD, ELECTRO-PHOTOGRAPHIC IMAGE FORMATION APPARATUS, AND PROCESS CARTRIDGE

To provide an electro-photographic image formation carrier which includes the carrier adhesion preventing property and ghost preventing property while maintaining the stable electrifying capability in long-term use.SOLUTION: The above-mentioned problem is solved by an electro-photographic image form...

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Bibliographische Detailangaben
Hauptverfasser:	MASUKO KAEDE, MASUDA MINORU, TAKEUCHI KENTO, NAGAYAMA MASASHI, SUZUKI KOSUKE, KISHIDA HIROYUKI, SUGANUMA TORU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	To provide an electro-photographic image formation carrier which includes the carrier adhesion preventing property and ghost preventing property while maintaining the stable electrifying capability in long-term use.SOLUTION: The above-mentioned problem is solved by an electro-photographic image formation carrier which comprises: a core material particle; and a coating layer which covers the core material particle, in which the apparent density of the carrier is equal to or greater than 2.0 [g/cm3] and less than 2.5 [g/cm3], and contains an electrified particle and a dispersing agent in the coating layer.SELECTED DRAWING: Figure 1 【課題】長期使用においても安定した帯電付与能力を維持しつつ、耐キャリア付着性と耐ゴースト性を備え持つ電子写真画像形成用キャリアを提供する。【解決手段】芯材粒子と前記芯材粒子を被覆する被覆層とを有し、前記キャリアの見掛け密度が2.0［g/cm3］以上2.5［g/cm3］未満であり、前記被覆層中に帯電性粒子および分散剤を含有することを特徴とする、電子写真画像形成用キャリアによって上記課題を解決した。【選択図】図１