DEVELOPER REGULATING MEMBER, DEVELOPING DEVICE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
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United States of America
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Issued Date -
Jan 23, 2020
app pub date -
Jun 26, 2019
filing date -
Jun 26, 2019
priority date (Note) -
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Abstract
To provide a developer regulating member which can generate a uniform frictional charge even on a developer having a small size. A developer regulating member for regulating the thickness of the layer of a developer carried on the surface of a developer carrier, having: a regulating portion contacting with the developer, wherein the regulating portion includes a thermoplastic acrylic resin, and the thermoplastic acrylic resin has a first endothermic peak having a peak top at +50° C. or more and a second endothermic peak having a peak top at +20° C. or less on the differentiation curve of a DSC curve obtained when the temperature is raised from −100° C. to 150° C. at a rate of temperature rise of 20.0° C./min using differential scanning calorimetry (DSC).
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