Charging roll for electrophotographic equipment
First Claim
1. A charging roll for electrophotographic equipment, comprising:
- an elastic body layer; and
a surface layer formed on an outer periphery of the elastic body layer,wherein the surface layer contains polyamide and a modifier having a hydroxyl group,the modifier having a hydroxyl group is a fluorine-based modifier, andthe surface layer has Bé
nard cells with a height of 0.1 to 1.0 μ
m on a surface thereof,the surface layer contains roughness-forming particles having an average particle diameter within a range of 3.0 to 30 μ
m, anda size of the Bé
nard cells is within a range of 250 to 1100 μ
m.
1 Assignment
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Accused Products
Abstract
The disclosure provides a charging roll for excellent image quality electrophotographic equipment. This charging roll for electrophotographic equipment is provided with a shaft body, an elastic body layer formed on the outer periphery of the shaft body, and a surface layer formed on the outer periphery of the elastic body layer, wherein the surface layer contains a modifier having polyamide and a hydroxyl group, and has a Bénard cell with a height of 0.1 to 1.0 μm on the surface thereof. A fluorine-based modifier having a hydroxyl group, a silicone-based modifier having a hydroxyl group, and an acrylic modifier having a hydroxyl group can be cited as examples of the modifier having the hydroxyl group.
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Citations
1 Claim
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1. A charging roll for electrophotographic equipment, comprising:
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an elastic body layer; and a surface layer formed on an outer periphery of the elastic body layer, wherein the surface layer contains polyamide and a modifier having a hydroxyl group, the modifier having a hydroxyl group is a fluorine-based modifier, and the surface layer has Bé
nard cells with a height of 0.1 to 1.0 μ
m on a surface thereof,the surface layer contains roughness-forming particles having an average particle diameter within a range of 3.0 to 30 μ
m, anda size of the Bé
nard cells is within a range of 250 to 1100 μ
m.
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Specification