NEGATIVELY CHARGEABLE ONE-COMPONENT DEVELOPER AND METHOD FOR FORMING IMAGE BY USING SAME

NEGATIVELY CHARGEABLE ONE-COMPONENT DEVELOPER AND METHOD FOR FORMING IMAGE BY USING SAME

PROBLEM TO BE SOLVED: To provide the negatively chargeable one-component developer and the image forming method capable of obtaining good image quality free from middle image dropout and the like. SOLUTION: This developer comprises toner particles composed of a binder resin having an acid value of 3...

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Bibliographische Detailangaben
Hauptverfasser: SATO YUKIHIRO, SAIKI SHINICHI, FUJITAKE NOBUTADA
Format: Patent
Sprache:eng
Schlagworte:
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide the negatively chargeable one-component developer and the image forming method capable of obtaining good image quality free from middle image dropout and the like. SOLUTION: This developer comprises toner particles composed of a binder resin having an acid value of 3-30mgKOH/g and a charge controller and a 50% volume diameter Dt of 5-12μm, and a fluidity enhancing agent and a fatty acid metal salt particles, and these metal salt particles have a 16% volume diameter Ds16, a 50% volume diameter Ds50, and a 84% volume diameter Ds84 each satisfying the following expressions; Ds50/Dt50