MAGNETIC TONER, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD
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United States of America Patent
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Issued Date -
Dec 29, 2016
app pub date -
Jun 24, 2016
filing date -
Jun 29, 2015
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Abstract
Provided is a toner having improved durability. The magnetic toner includes magnetic toner particles each containing a binder resin and a magnetic material, in which a deformation amount when a load of 9.8×10−4 N is applied to one particle of the magnetic toner in a microcompression test is 3.0 μm or less, in which the magnetic toner has a surface free energy of 5 mJ/m2 or more and 20 mJ/m2 or less, and in which the magnetic toner has a melt viscosity η′ at 100° C. of 5.0×103 Pa·s or more and 1.0×105 Pa·s or less.
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