Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Toner and developer
To provide a toner, including at least: a non-crystalline polyester resin; and a crystalline polyester resin, wherein the toner has a glass transition temperature in a first heating Tg1st and a glass transition temperature in a second heating Tg2nd, and a difference between Tg1st and Tg2nd (Tg1st-Tg2nd) is 10° C. or greater, and wherein the crystalline polyester resin is a modified crystalline polyester resin having a urethane skeleton or a urea skeleton, or both thereof.
Ricoh Company, Ltd.
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Masahide Daisuke Shingo Rintaro Hiroshi Tsuyoshi Atsushi Shinya
Yamada Asahina Sakashita Takahashi Yamashita Sugimoto Yamamoto Nakayama