ELECTROSTATIC CHARGE IMAGE DEVELOPER, PROCESS CARTRIDGE, IMAGE FORMATION DEVICE, AND IMAGE FORMATION METHOD
To provide an electrostatic charge image developer which suppresses occurrence of image omission.SOLUTION: An electrostatic charge image developer has: a toner which contains toner particles and an external additive, and has a surface property index value of the toner particles of 2.0 or more and 2....
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide an electrostatic charge image developer which suppresses occurrence of image omission.SOLUTION: An electrostatic charge image developer has: a toner which contains toner particles and an external additive, and has a surface property index value of the toner particles of 2.0 or more and 2.8 or less; and a carrier which has magnetic particles and a resin layer coating the magnetic particles, and has a ratio B/A of a surface area B to a planar view area A when the surface is three-dimensionally analyzed of 1.020 or more and 1.100 or less.SELECTED DRAWING: None
【課題】画像抜けが発生することを抑制する静電荷像現像剤を提供する。【解決手段】トナー粒子と外添剤とを含み、前記トナー粒子の表面性指標値が２．０以上２．８以下であるトナーと、磁性粒子と前記磁性粒子を被覆する樹脂層とを有し、表面を３次元解析したとき平面視面積Ａと表面積Ｂとの比Ｂ／Ａが１．０２０以上１．１００以下であるキャリアと、を有する静電荷像現像剤。【選択図】なし |
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