Toner compositions

A negatively charged toner comprised of resin, colorant, optional wax and a surface additive mixture of a coated fumed silica, and metal oxide and wherein said silica possesses a BET surface area, in m2/g of about from about 35 to about 65, a bulk density, in grams/liter, of from about 40 to about 60, and wherein the size diameter determined by the BET measurement is from about 20 to about 100 nanometers, and wherein said metal oxide is titanium dioxide coated with a decylsilane and the silica contains a containing thereover comprised of a mixture of y-aminopropyltriethoxysilane and hexamethyldisilazane.

A toner composition consisting essentially of binder, colorant, and a surface additive of a coated silica, and wherein said silica possesses a BET surface area, in m2/g of from about 35 to about 65, a bulk density, in grams/liter, of from about 40 to about 60, and wherein the size diameter determined from the BET measurement is from about 20 to about 100 nanometers, and wherein said silica is coated with a mixture of y-aminopropyltriethoxysilane and hexamethyidisilazane, and wherein the silica coated additive is of a size diameter of from about 25 to about 75 nanometers, and wherein the aggregate coated silica size diameter is about 225 to about 400 nanometers.