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    • 2. 发明授权
    • Electrophotographic toner and image-forming method
    • 电子照相调色剂和成像方法
    • US06203956B1
    • 2001-03-20
    • US09519462
    • 2000-03-06
    • Chisato UranoKatsumi DaimonMasato MikamiNorihito Fukushima
    • Chisato UranoKatsumi DaimonMasato MikamiNorihito Fukushima
    • G03G9087
    • G03G9/0821
    • An electrophotographic toner containing a binder resin and a colorant, wherein at the angular frequency of 1 rad/sec and 30° C., a storage elastic modulus (G′30) is at least 1×105 Pa and a loss elastic modulus (G″30) is at least 1×105 Pa; a melting point is in the temperature region of 45 and 110° C.; when a common logarithm of G′ is plotted against the temperature and G′ at melting point +20° C. is represented by G′ (Tm+20) and G′ at melting point +50° C. is represented by G′ (Tm+50) the condition of the following formula (1) is satisfied |logG′(Tm+20)−logG′(Tm+50)|≦1.5  (1); and when a common logarithm of G″ is plotted against the temperature and G″ at melting point +20° C. is represented by G″ (Tm+20) and G″ at melting point +50° C. is represented by G″ (Tm+50), the condition of the following formula (2) is satisfied |logG″(Tm+20)−logG″(Tm+50)|≦1.5  (2). The electrophotographic toner is good in a low-temperature fixing property and an offset resistance, has a wide fixing latitude and is capable of oilless fixing.
    • 一种含有粘合剂树脂和着色剂的电子照相调色剂,其中在角度频率为1弧度/秒和30℃时,储能弹性模量(G'30)为至少1×10 5 Pa,损耗弹性模量(G“ 30)至少为1×10 5 Pa; 熔点在45℃和110℃的温度范围内。 当相对于温度绘制G'的常用对数时,在熔点+ 20℃下的G'由G'(Tm + 20)表示,而熔点+ 50℃的G'表示为G'( Tm + 50)满足以下公式(1)的条件,并且当相对于温度绘制G“的常用对数并且在熔点+ 20℃下的G”被表示为G“(Tm + 20)时 )和熔点+ 50℃下的G“由G”(Tm + 50)表示,满足下式(2)的条件电子照相调色剂在低温定影性和偏移 电阻,具有宽的固定宽度,能够无油固定。
    • 7. 发明授权
    • Image formation device
    • 图像形成装置
    • US08203587B2
    • 2012-06-19
    • US12243317
    • 2008-10-01
    • Masato MikamiSou Morizaki
    • Masato MikamiSou Morizaki
    • B41J27/00B41J2/435
    • B41J2/435G03G15/04045G03G15/326
    • An image formation device, which includes: an exposure head in which a screw having an axis directed to a focus direction for a photoreceptor is fixed in the vicinity of each side of the exposure head; a housing to which the exposure head is attached; a nut attached to the screw; a fixing member that limits movement of the nut with respect to the housing; and an elastic member that elastically supports the exposure head against the housing in the vicinity of the screw in the focus direction for the photoreceptor and a sub-scanning direction, in which the exposure head is moved, by rotation of the nut, in the focus direction against an elastic force by the elastic member, and a position of the exposure head with respect to the photoreceptor is adjustable in the focus direction.
    • 一种图像形成装置,包括:曝光头,其中具有指向感光体的聚焦方向的轴的螺钉固定在曝光头的每一侧附近; 连接曝光头的外壳; 一个固定在螺丝上的螺母; 固定构件,其限制所述螺母相对于所述壳体的运动; 以及弹性构件,其通过螺母的旋转,在聚焦中使曝光头在感光体的聚焦方向附近的弹性支撑件和副扫描方向弹性地支撑曝光头,其中曝光头被移动 通过弹性构件抵抗弹性力的方向,并且曝光头相对于感光体的位置在聚焦方向上是可调节的。