Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Toner and developer, toner container, process cartridge, image forming apparatus, and image forming method using the same
To provide a toner containing an ethyl acetate-soluble polyester component and an ethyl acetate-insoluble polyester component, wherein the toner is granulated in an aqueous medium, the ethyl acetate-insoluble polyester component is obtained by elongating and/or cross-linking a modified polyester resin during granulating and/or after granulating, the modified polyester resin is produced by condensation polymerization of an acid component and at least one type of diol compound selected from aliphatic diol and alicyclic diol in the presence of a catalyst, and the mass average molecular weight of the modified polyester resin is 10,000 to 100,000.
Ricoh Company, Ltd.
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Ryota Kazushige Masahide Naohito Toshiki Tomomi Naohiro Hiroshi Shigeru Kazuyuki Junichi Masahiro Tsunemi Shinichi Akinori
Inoue Yasumatsu Yamada Shimota Nanya Suzuki Watanabe Yamada Emoto Hirai Awamura Ohki Sugiyama Wakamatsu Saitoh