POSITIVELY CHARGEABLE TONER FOR NONMAGNETIC MONO-COMPONENT DEVELOPMENT SYSTEM
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United States of America Patent
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app pub date -
Jun 26, 2014
filing date -
Dec 26, 2011
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Abandoned
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Abstract
The invention addresses the problem of providing a positively chargeable toner for nonmagnetic mono-component development systems, which is free from image density reduction, back ground and toner scattering inside the machine that are caused by insufficient electrification and which has excellent toner starvation on black page, without impairing the durability. In the positively chargeable toner for nonmagnetic mono-component development system, which at least comprises a binder resin, a colorant and a charge control agent, a styrene-acrylic resin is used as the binder resin, and the toner comprises: polytetrafluoroethylene fine particles; and inorganic fine particles that have been surface-treated with an amino group-containing treating agent.
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