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    • 28. 发明授权
    • Both-sided image forming method
    • 双面成像方法
    • US07914964B2
    • 2011-03-29
    • US11780812
    • 2007-07-20
    • Hiroshi YamazakiKen Ohmura
    • Hiroshi YamazakiKen Ohmura
    • G03G5/00
    • G03G15/235G03G2215/0607
    • An image forming method of forming images on both sides of a recording sheet; comprising the steps of: fixing a first toner image on a first surface a recording sheet; and fixing a second toner image on a second surface of the recording sheet; wherein in two-component developer includes toner particles each containing a binder resin having a glass transition temperature Tg° C. and a colorant and carrier particles in each on which magnetic powder is dispersed in a binder resin including a phenol formaldehyde obtained by a polymerization process, and the first toner image is fixed with first heat in such a way that the surface temperature of the first surface of the recording sheet is a temperature in a range of Tg° C. or more and lower than 100° C.
    • 一种在记录纸的两面上形成图像的图像形成方法; 包括以下步骤:将第一调色剂图像固定在记录片材的第一表面上; 以及将第二调色剂图像固定在所述记录片材的第二表面上; 其中在双组分显影剂中包括各自含有玻璃化转变温度Tg℃的粘合剂树脂的调色剂颗粒和各自的磁性粉末分散在包含通过聚合方法获得的酚醛树脂的粘合剂树脂中的着色剂和载体颗粒 并且第一调色剂图像以第一热量固定,使得记录片材的第一表面的表面温度为Tg℃以上且低于100℃的温度。
    • 30. 发明申请
    • TWO COMPONENT DEVELOPER
    • 两个组件开发商
    • US20080233507A1
    • 2008-09-25
    • US12013158
    • 2008-01-11
    • Hiroshi YamazakiMikio KouyamaKen Ohmura
    • Hiroshi YamazakiMikio KouyamaKen Ohmura
    • G03G9/087
    • G03G9/08711G03G9/0806G03G9/08755G03G9/08795G03G9/1075G03G9/1135
    • A two component developer used in an electrophotographic method composed of a toner containing at least a resin and a colorant, and a carrier, is disclosed. The resin is composed of a polyester resin and a styrene-acryl resin, in which the polyester resin is prepared via condensation-polymerization of a polyvalent carboxylic acid and a polyol in a state where a styrene monomer and an acrylate monomer exist in an aqueous medium containing an acidic compound, followed by formation of the styrene-acryl resin via radical polymerization of the styrene monomer and the acrylate monomer; and the carrier comprises magnetic material powder dispersed in a binder resin, and has a volume based median diameter of 10 μm-100 μm, a shape factor SF-1 of 1.0-1.2, and a shape factor SF-2 of 1.1-2.5.
    • 公开了一种用于由至少包含树脂和着色剂的调色剂和载体组成的电子照相方法中使用的双组分显影剂。 该树脂由聚酯树脂和苯乙烯 - 丙烯酸树脂组成,其中聚酯树脂是通过多价羧酸和多元醇在水性介质中存在苯乙烯单体和丙烯酸酯单体的状态下进行缩聚制得的 含有酸性化合物,然后通过苯乙烯单体和丙烯酸酯单体的自由基聚合形成苯乙烯 - 丙烯酸树脂; 载体包含分散在粘合剂树脂中的磁性材料粉末,体积基准中值粒径为10〜100μm,形状因子SF-1为1.0〜1.2,形状因子SF-2为1.1〜2.5。