Patent ID: 7344812

Claim:
A developer for developing an electrostatic latent image, compnsing: a carrier which comprises core particles and a surface layer comprising a resin binder which comprises an acrylic resin and a silicone resin surrounding each of said core particles; and a toner which comprises toner particles and an external additive of inorganic or resin fine particles present on each of said toner particles, wherein each of said toner particles comprises a colorant, a matrix of a first resin, domains of a second resin and a wax; wherein a plurality of domains of said second resin is dispersed in said matrix of said first resin, and wherein said second resin substantially contains said wax, said first resin, said second resin and said wax being insoluble in each other, said first resin is substantially free of tetrahydrofuran insoluble matters and has a weight average molecular weight of 3,000 to 90,000, and said surface layer comprises a first layer comprising said acrylic resin and a second layer comprising said silicone resin, said first and second layers being provided one over the other in either order to form a laminate; wherein said surface layer of said carrier further comprises particles in an amount of 40 to 95% by weight based on a total weight of said particles and said resin binder, said particles having an average particle diameter which satisfies the following condition: 1< D/h< 10 wherein D represents the particle diameter of said particles and h represents the thickness of said surface layer.