Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Dry toner and method of preparing same
A dry toner for developing an electrostatic image, including a toner binder containing a urea-modified polyester. The toner has an average sphericity of 0.96 or more and contains no more than 30% by weight of particles having a sphericity of less than 0.95.
Ricoh Company, Ltd.
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Masami Tsunemi Hiroshi Shigeru
Tomita Sugiyama Yamashita Emoto