CARRIER FOR ELECTROSTATIC LATENT IMAGE DEVELOPER, ELECTROSTATIC LATENT IMAGE DEVELOPER AND IMAGE FORMING METHOD

PROBLEM TO BE SOLVED: To obtain a carrier for an electrostatic latent image developer having high stability to an environmental change and deterioration with the lapse of time, attaining a high yield ratio in production and capable of forming a good color image. SOLUTION: The carrier for an electros...

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Bibliographische Detailangaben
Hauptverfasser: YAMAMOTO YASUO, KIN ISHI, YANAGIDA KAZUHIKO
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To obtain a carrier for an electrostatic latent image developer having high stability to an environmental change and deterioration with the lapse of time, attaining a high yield ratio in production and capable of forming a good color image. SOLUTION: The carrier for an electrostatic latent image developer has a core material having a sphericity of =3 represented by the equation (surface roughness)=SBET/S' (where SBET is the BET specific surface area of particles and S' is specific surface area equivalent to spheres) and a coating resin layer containing 25-45 vol.% electrically conductive powder including 20-100 vol. % acicular electrically conductive powder and having 1×10-1×108 Ω.cm electric resistance.