Invention Application
US20100062362A1 TONER FOR ELECTROPHOTOGRAPHY 有权
电影摄影机

TONER FOR ELECTROPHOTOGRAPHY
Abstract:
An embodiment may be an electrophotographic toner which comprises at least one toner particle which comprises an inner layer and an outer layer covering the inner layer, wherein a cross-sectional area ratio of the outer layer to the inner layer is 0.05-0.46, and wherein a non-uniform thickness exists in the outer layer, and further the average thickness (t) taken at 5 positions as calculated by, is about 0.2-about 1.0 μm, t=(t1+t2+t3+t4+t5)/5 (unit of t1-t5 is μm)wherein t1 represents a thickness of the thickest part of the outer layer, and t2-t5 each represent a thickness of a second to a fifth thickest part of the outer layer in one particle, and wherein a glass transition point Tg of the inner layer is about 2-about 45° C. lower than Tg of the outer layer.
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