Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Toner for forming color image, image forming apparatus, and toner container
A color toner which gives a suitable image gloss and has an excellent color reproducibility, which has sufficient anti-offset properties even when a release oil is not coated on a fixing roller or is coated in only a small amount, and which has excellent transfer properties, durability, and charge stability relative to humidity is disclosed. Also, an image-forming apparatus using the color toner and a toner container filled with the color toner are disclosed. The color toner comprises a continuous phase of a resin containing a urea-modified polyester resin; and a modified resin dispersed in the continuous phase, wherein the modified resin contains a release polymer portion containing a release polymer; and a modified portion containing a plurality of vinyl monomer units, the modified portion having an average ester group concentration of 8% by weight to 30% by weight.
Ricoh Company, Ltd.
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Hiroshi Yasuaki Takeshi Tsunemi Yohichiroh Takuya Satoshi Takayuki Masanori
Yamashita Iwamoto Takada Sugiyama Watanabe Saito Mochizuki Koike Suzuki