Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Electrophotographic toner, and image forming method and apparatus using the toner
A toner including a resin and a colorant which is dispersed in the toner and which has an average major particle diameter not greater than about 0.5 &mgr;m, wherein the following relationships are satisfied: Ta&lE;100 (&deg; C.), and (Tb&#8722;Ta)&gE;7.0 (&deg; C.), wherein Ta represents a temperature at which the toner has a melt viscosity of 50,000 Pa&middot;sec and Tb represents a temperature at which the toner has a melt viscosity of 5,000 Pa&middot;sec.
Ricoh Company, Ltd.
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inventional inventional inventional inventional
Hiroshi Mitsuo Takashi Masahide Fumihiro Kazuhito Tomio Shinichi
Yamashita Aoki Okada Yamashita Sasaki Watanabe Kondou Kuramoto