Developer for developing electrostatic image, image forming apparatus and image forming method
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United States of America Patent
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N/A
Issued Date -
Apr 15, 2004
app pub date -
Jul 10, 2003
filing date -
Jul 10, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A developer, which includes a base toner containing at least a binding resin and a coloring agent; and inorganic fine particles; wherein the base toner satisfies 105.ltoreq.SF-1.ltoreq.130 and 120.ltoreq.SF-2.ltoreq.180, wherein SF-1=((absolute maximum length of a particle of the base toner).sup.2/area of the particle of the base toner).times.(.pi./4).times.100, wherein SF-2=(peripheral length of the particle of the base toner).sup.2/(area of the base toner).times.(1/4.pi.).times.100, wherein the inorganic fine particles have an average particle diameter that ranges between 30 nm to 160 nm.
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