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    • 71. 发明授权
    • Image forming apparatus, image forming method, and process cartridge
    • 图像形成装置,图像形成方法和处理盒
    • US07718340B2
    • 2010-05-18
    • US11755517
    • 2007-05-30
    • Yasuaki IwamotoYohichiroh WatanabeYasutada Shitara
    • Yasuaki IwamotoYohichiroh WatanabeYasutada Shitara
    • G03G15/02G03G15/06G03G15/16
    • G03G9/08755G03G9/08775G03G9/08795G03G9/08797G03G15/2025G03G2215/2032
    • To provide an image forming apparatus, image forming method and process cartridge, which are excellent in low-temperature fixation properties, storage stability, durability and filming resistance, can reduce generation of odor, and are capable of forming an extremely high quality image. The apparatus includes: a latent electrostatic image bearing member; a charging unit; an exposing unit; a developing unit; a transferring unit; and a fixing unit; wherein the toner comprises a binder resin and coloring agent, and the binder resin comprises a polyester-based resin (A) and polyester-based resin (B) having a melting point at least 10° C. higher than that of the polyester-based resin (A), and at least one of the polyester-based resins (A) and (B) is a resin derived from a (meth)acrylic acid modified rosin and includes a polyester unit obtained by condensation polymerization of an alcohol component and a carboxylic acid component containing a (meth)acrylic acid modified rosin.
    • 为了提供低温定影性,保存稳定性,耐久性和耐成膜性优异的图像形成装置,成像方法和处理盒,可以减少气味的产生,并且能够形成极高质量的图像。 该装置包括:静电潜像承载部件; 充电单元; 曝光单元; 一个发展单位; 转移单元; 和固定单元; 其中调色剂包括粘合剂树脂和着色剂,并且粘合剂树脂包括聚酯基树脂(A)和聚酯基树脂(B),其熔点比聚酯基树脂(A)高至少10℃ 树脂(A),所述聚酯类树脂(A)和(B)中的至少一种为衍生自(甲基)丙烯酸改性松香的树脂,包括通过醇成分和 羧酸成分含有(甲基)丙烯酸改性松香。