A toner comprised of resin, colorant and a coated silica, and wherein said silica has a primary particle size of about 25 nanometers to about 55 nanometers, and an aggregate size of about 225 nanometers to about 400 nanometers, and said coating is comprised of a mixture of an alkylsilane and an aminoalkylsilane.

Un toner formato da resina, colorante e un silicone rivestito ed in cui il silicone detto ha una dimensione delle particelle primaria di circa 25 nanometri a circa 55 nanometri e un formato aggregato di circa 225 nanometri a circa 400 nanometri ed al detto rivestimento รจ contenuto una miscela di un alkylsilane e di un aminoalkylsilane.

 
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