Patent ID: 6093516
Filing Date: 2000-07-25
Classification: G03G

Abstract:
A dry electrostatographic developer composition comprising(I) carrier particles, and(II) a toner composition, comprising toner particles having a particle size distribution showing more than about 80% by volume of the toner particles with particle size diameter of less than about 10 .mu.m and inorganic microparticles wherein:(i) said microparticles are present in said toner composition in a concentration of at least 0.1% by weight and at most 5% by weight with respect to the weight of toner particles(ii) said microparticles being characterized by a product of BET surface (A) in m.sup.2 /g times the methanol value (B) fulfilling the relation:A.times.B>10,000(iii) and the ratio of the apparent density over the bulk density of said toner composition satisfies the relation: ##EQU5##