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    Image forming apparatus
    1.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US09042802B2

    公开(公告)日：2015-05-26

    申请号：US14190459

    申请日：2014-02-26

    申请人： Takamasa Hase ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Hideyuki Santo ,  Minoru Masuda ,  Yukiko Iwasaki ,  Tsuneyasu Nagatomo

    发明人： Takamasa Hase ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Hideyuki Santo ,  Minoru Masuda ,  Yukiko Iwasaki ,  Tsuneyasu Nagatomo

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2064 ,  G03G15/2028 ,  G03G2215/2032 ,  G03G2215/2035

    摘要： An image forming apparatus includes: an image bearing member; a charger; an irradiator; a development device having an accommodation unit to accommodate toner to obtain a visible image; a transfer device; and a fixing device to fix the visible image transferred onto a recording medium. The fixing device having a fixing rotation member; and a pressure rotation member to form a nipping portion by contacting the fixing rotation member, wherein the surface pressure of the nipping portion is 1.5 kgf/cm2 or less, wherein the fixing rotation member has a Martens hardness of 1.0 N/mm2 or less at 23° C., wherein the ratio of the projected area of a single particle of the toner onto the recording medium at 120° C. to the projected area of a single particle of the toner onto the recording medium at 23° C. is 1.60 or less.

    摘要翻译： 图像形成装置包括：图像承载部件; 充电器 辐照器 具有容纳单元以容纳调色剂以获得可见图像的显影装置; 转移装置; 以及固定装置，用于固定转印到记录介质上的可见图像。 固定装置具有固定旋转构件; 以及压力旋转构件，其通过使所述固定旋转构件接触而形成夹持部，其中所述夹持部的表面压力为1.5kgf / cm 2以下，其中，所述固定旋转构件的马氏体硬度为1.0N / mm 2以下， 23℃，其中调色剂的单个颗粒在120℃下的投影面积与在23℃下记录介质上调色剂的单个颗粒的投影面积的比率为1.60 或更少。

    IMAGE FORMING APPARATUS
    2.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号：US20140270874A1

    公开(公告)日：2014-09-18

    申请号：US14190459

    申请日：2014-02-26

    申请人： Takamasa Hase ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Hideyuki Santo ,  Minoru Masuda ,  Yukiko Iwasaki ,  Tsuneyasu Nagatomo

    发明人： Takamasa Hase ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Hideyuki Santo ,  Minoru Masuda ,  Yukiko Iwasaki ,  Tsuneyasu Nagatomo

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2064 ,  G03G15/2028 ,  G03G2215/2032 ,  G03G2215/2035

    摘要： An image forming apparatus includes: an image bearing member; a charger; an irradiator; a development device having an accommodation unit to accommodate toner to obtain a visible image; a transfer device; and a fixing device to fix the visible image transferred onto a recording medium. The fixing device having a fixing rotation member; and a pressure rotation member to form a nipping portion by contacting the fixing rotation member, wherein the surface pressure of the nipping portion is 1.5 kgf/cm2 or less, wherein the fixing rotation member has a Martens hardness of 1.0 N/mm2 or less at 23° C., wherein the ratio of the projected area of a single particle of the toner onto the recording medium at 120° C. to the projected area of a single particle of the toner onto the recording medium at 23° C. is 1.60 or less.

    摘要翻译： 图像形成装置包括：图像承载部件; 充电器 辐照器 具有容纳单元以容纳调色剂以获得可见图像的显影装置; 转移装置; 以及固定装置，用于固定转印到记录介质上的可见图像。 固定装置具有固定旋转构件; 以及压力旋转构件，其通过使所述固定旋转构件接触而形成夹持部，其中所述夹持部的表面压力为1.5kgf / cm 2以下，其中，所述固定旋转构件的马氏体硬度为1.0N / mm 2以下， 23℃，其中调色剂的单个颗粒在120℃下的投影面积与在23℃下记录介质上调色剂的单个颗粒的投影面积的比率为1.60 或更少。

    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    3.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 审中-公开
    图像形成装置和图像形成方法

    公开(公告)号：US20140363184A1

    公开(公告)日：2014-12-11

    申请号：US14289851

    申请日：2014-05-29

    申请人： Hideyuki Santo ,  Yukiko Iwasaki ,  Takamasa Hase

    发明人： Hideyuki Santo ,  Yukiko Iwasaki ,  Takamasa Hase

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2017 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08764 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/2039

    摘要： An image forming apparatus, including: electrostatic latent image bearing member; electrostatic latent image forming unit; developing unit configured to develop with toner to form visible image; transferring unit; fixing unit; and discharging unit, the toner containing binder resin, colorant, and releasing agent, the binder resin containing crystalline resin containing urethane or urea bond, or both, the toner satisfying: C/(C+A)≧0.15, C being integrated intensity of part of spectrum derived from crystalline structure of the binder resin, A being integrated intensity of part of the spectrum derived from non-crystalline structure, the spectrum being diffraction spectrum of the toner as obtained by X-ray diffraction spectroscopy, storage elastic modulus G′(70) of the toner at 70° C. being 5.0×104 Pa≦G′(70)≦1.0×106 Pa, and storage elastic modulus G′(160) thereof at 160° C. being 1.0×103 Pa≦G′(160)≦1.0×104 Pa, and the image forming apparatus satisfying S1−S2>0, S1 and S2 being passing speeds of the recording medium in the fixing unit and the discharging unit, respectively.

    摘要翻译： 一种图像形成装置，包括：静电潜像承载部件; 静电潜像形成单元; 配置成用调色剂显影以形成可见图像的显影单元; 转运单位 固定单元 所述调色剂含有粘合剂树脂，着色剂和脱模剂，含有含有氨基甲酸酯或脲键的结晶性树脂的粘合剂树脂或两者均满足：C /（C + A）≥0.15，C为 衍生自粘结剂树脂的晶体结构的光谱的一部分，A是由非晶结构衍生的部分光谱的积分强度，光谱是通过X射线衍射光谱法获得的调色剂的衍射光谱，储能弹性模量G' （70）为5.0×104Pa·nlE; G'（70）＆nlE; 1.0×106Pa，其在160℃下的储能弹性模量G'（160）为1.0×10 3 Pa＆amp; G'（160）＆nlE; 1.0×104Pa，图像形成装置分别满足S1-S2> 0，S1和S2是记录介质在定影单元和放电单元中的通过速度。