IMAGE FORMING APPARATUS, ELECTROSTATIC CHARGE IMAGE DEVELOPER, AND ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER
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United States of America Patent
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Aug 10, 2017
app pub date -
Jul 27, 2016
filing date -
Feb 10, 2016
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Abstract
An image forming apparatus includes a developing unit that contains an electrostatic charge image developer and develops an electrostatic charge image formed on a surface of the image holding member with the developer, wherein the developer contains a carrier and an electrostatic charge image developing toner that includes a toner particle which contains a urea-modified polyester resin, and includes, in a vicinity of a surface thereof, vinyl resin particles; and an external additive which contains silica particles having a compression aggregation degree of 60% to 95% and a particle compression ratio of 0.20 to 0.40.
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