Electrostatic charge image developer, image formation method and image forming device

摘要

The present invention provides an electrostatic image developer comprising a toner and a carrier wherein the toner includes toner particles having an average particle diameter of 3 to 9 mu m, a hydrophobic silica microparticles having a BET specific surface area of 40 to 120 m2/g, and a hydrophobic titanium compound microparticles having a BET specific surface area of 40 to 250 m2/g; and wherein the carrier is a resin coated carrier having a coating layer of a resin. The electrostatic image developer can improve the environmental dependency of charging, power fluidity, resistance to caking of a toner and reduced change in charging with time course to provide an image with an excellent image quality for a long period of time.