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    Process cartridge and electrophotographic apparatus having an intermediate transfer belt
    1.
    发明授权
    Process cartridge and electrophotographic apparatus having an intermediate transfer belt 失效
    具有中间转印带的处理盒和电子照相设备

    公开(公告)号：US06795667B2

    公开(公告)日：2004-09-21

    申请号：US10231352

    申请日：2002-08-30

    申请人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda ,  Yuji Sakurai

    发明人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda ,  Yuji Sakurai

    IPC分类号： G03G1500

    CPC分类号： G03G21/181 ,  G03G15/1605 ,  G03G21/1821 ,  G03G2215/0177 ,  G03G2221/1642

    摘要： A process cartridge which is detachably mountable to a main body of an electrophotographic apparatus, includes an electrophotographic photosensitive member to carry a toner image; an intermediate transfer belt having a contact part with the photosensitive member, and a primary transfer unit to primarily transfer the toner image at the contact part from the photosensitive member to the intermediate transfer belt, being integrally supported in one body. After the contact part is formed by the photosensitive member and the intermediate transfer belt is brought into contact with under a linear pressure of 0.5 N/cm and is left for 10 hours in an environment of 45° C./95% RH, differences in the dark portion potential and the light portion potential of the photosensitive member between the contact part and the non-contact part of the photosensitive member are respectively less than 20%, and no crack having a length of not less than 1 mm occurs in any of the surfaces of the photosensitive member and the intermediate transfer belt. An electrophotographic apparatus having the process cartridge is also disclosed.

    摘要翻译： 可拆卸地安装到电子照相设备的主体的处理盒包括用于承载调色剂图像的电子照相感光构件; 具有与感光构件接触部分的中间转印带以及主要转印单元，其主要将接触部分上的调色剂图像从感光构件转印到中间转印带上，一体地支撑在一体中。 在接触部分由感光部件形成之后，中间转印带在0.5N / cm的线性压力下接触并在45℃/ 95％RH的环境中放置10小时， 接触部分和感光部件的非接触部分之间的感光部件的暗部电位和亮部电位分别小于20％，并且不会发生长度不小于1mm的裂纹 感光构件和中间转印带的表面。 还公开了具有处理盒的电子照相设备。

    Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship
    2.
    发明授权
    Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship 有权
    用于从具有膜厚度，模具间隙关系的模压挤出薄膜制造带状构件的方法

    公开(公告)号：US06592803B2

    公开(公告)日：2003-07-15

    申请号：US09750165

    申请日：2000-12-29

    申请人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    发明人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    IPC分类号： B29C4904

    CPC分类号： G03G15/65 ,  B29C47/0023 ,  B29C47/065 ,  B29C47/26 ,  B29C47/263 ,  B29K2995/0005 ,  B29L2009/00 ,  B29L2031/7092 ,  G03G15/162 ,  G03G2215/00683 ,  Y10T428/24802

    摘要： A process produces a belt-shaped member to be used in an image-forming apparatus is disclosed in which a toner image held on a latent-image-bearing member is electrostatically transferred under application of a voltage via the belt-shaped transfer member. The process includes the steps of melt-extruding a material containing a thermoplastic resin, from a circular die into a cylindrical film; forming the resultant cylindrical film by stretching in such a way that the cylindrical film comes to have a thickness smaller than the die gap of the circular die; and cutting the cylindrical film thus formed, into a seamless belt having a thickness of from 40 &mgr;m to 300 &mgr;m and a modulus in tension of 600 MPa or higher. The stretched cylindrical film is formed to have a thickness not larger than ⅓ of the die gap of the circular die. A belt-shaped transfer member may be produced by the above-described process. The so-produced belt-shaped transfer member is usable as a transfer belt in an image-forming apparatus in which a toner image held on a latent-image-bearing member is electrostatically transferred under application of a voltage via the belt-shaped transfer member.

    摘要翻译： 公开了一种在图像形成装置中使用的带状构件，其中保持在潜像承载构件上的调色剂图像经由带状转印构件施加电压而被静电转印。 该方法包括将包含热塑性树脂的材料从圆形模头熔融挤出成圆筒形薄片的步骤; 通过使圆柱形薄膜的厚度比圆形模具的模具间隙小的方式进行拉伸来形成所得到的圆柱形薄膜; 并将由此形成的圆筒形薄膜切割成厚度为40μm至300μm，张力模量为600MPa或更高的无缝带。 拉伸的圆筒形薄膜形成为不大于圆形模头的模具间隙的1/3的厚度。 可以通过上述方法制造带状转印构件。 所生产的带状转印部件可用作图像形成装置中的转印带，其中保持在潜像承载部件上的调色剂图像经由带状转印部件施加电压而静电转印 。

    Intermediate transfer member and electrophotographic apparatus including same
    3.
    发明授权
    Intermediate transfer member and electrophotographic apparatus including same 失效
    中间转印部件和包括其的电子照相设备

    公开(公告)号：US6144830A

    公开(公告)日：2000-11-07

    申请号：US780773

    申请日：1997-01-09

    申请人： Takashi Kusaba ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akihiko Nakazawa ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe

    发明人： Takashi Kusaba ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akihiko Nakazawa ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe

    IPC分类号： G03G15/16 ,  G03G15/00

    CPC分类号： G03G15/162

    摘要： An intermediate transfer member is formed by at least a base layer and a surface layer. The base layer is formed by epichlorohydrin rubber and acrylonitrile-butadiene rubber mixed in a certain weight ratio (preferably 1:9 to 9:1). The surface layer is formed by urethane resin or elastomer and a fluorine-containing compound powder. The fluorine-containing compound powder may preferably be contained in an amount of 20-80 wt. % based on the surface layer. The intermediate transfer member is suitable for full-color image formation by electrophotography and is effective in improving a transfer performance and providing clear images without causing transfer failure even in repetitive use for a long period.

    摘要翻译： 中间转印部件至少由基底层和表面层形成。 基层由表氯醇橡胶和以一定重量比（优选1:9至9:1）混合的丙烯腈 - 丁二烯橡胶形成。 表层由聚氨酯树脂或弹性体和含氟化合物粉末形成。 含氟化合物粉末的含量优选为20〜80重量％。 基于表面层的％。 中间转印部件适用于通过电子照相法进行全色图像形成，并且即使在长时间的重复使用中也能有效地提高转印性能并提供清晰的图像而不引起转印失败。

    Image forming apparatus and intermediate transfer member
    4.
    发明授权
    Image forming apparatus and intermediate transfer member 失效
    图像形成装置和中间转印构件

    公开(公告)号：US5842080A

    公开(公告)日：1998-11-24

    申请号：US813678

    申请日：1997-03-07

    申请人： Tsunenori Ashibe ,  Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Takashi Kusaba

    发明人： Tsunenori Ashibe ,  Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Takashi Kusaba

    IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G15/01

    CPC分类号： G03G15/0173 ,  G03G15/162 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/00063 ,  G03G2215/0177

    摘要： An image forming apparatus includes: a first image-bearing member, an intermediate transfer member for receiving an image formed on the first image-bearing member and transferring the image onto a second image-bearing member, pattern-forming means for forming a prescribed pattern on the intermediate transfer member, density detection means for detecting a density of the pattern, and control means for controlling image forming conditions based on the detected density. The intermediate transfer member is set to have a reflectance of 10-70% for light having a wavelength in the range of 700-1500 nm at least in a region thereof for forming the prescribed pattern. As a result, the pattern density detection is suitably performed on the intermediate transfer member for all of yellow, magenta cyan and black, and the detected density data is used for controlling the image forming conditions.

    摘要翻译： 图像形成装置包括：第一图像承载部件，用于接收形成在第一图像承载部件上的图像并将图像转印到第二图像承载部件上的中间转印部件，用于形成规定图案的图案形成装置 在中间转印部件上，用于检测图案的浓度的浓度检​​测装置，以及用于基于检测到的浓度来控制图像形成条件的控制装置。 至少在其形成规定图案的区域中，对于具有在700-1500nm范围内的波长的光，中间转印部件被设定为具有10-70％的反射率。 结果，对于所有黄色，品红色青色和黑色的中间转印部件，适当地执行图案密度检测，并且检测的浓度数据用于控制图像形成条件。

    Process cartridge, electrophotographic apparatus and image-forming method
    5.
    发明授权
    Process cartridge, electrophotographic apparatus and image-forming method 失效
    处理盒，电子照相设备和图像形成方法

    公开(公告)号：US06718148B2

    公开(公告)日：2004-04-06

    申请号：US10152561

    申请日：2002-05-23

    申请人： Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidehiko Matsuda ,  Yuji Sakurai

    发明人： Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidehiko Matsuda ,  Yuji Sakurai

    IPC分类号： G03G2118

    CPC分类号： G03G21/1817 ,  G03G2215/0177

    摘要： A process cartridge integrally supports an electrophotographic photosensitive member, an intermediate transfer belt, primary transferer for transferring a toner image primarily from the member to the belt, a charge provider for providing the toner on the belt with electric charges having a polarity reverse to the polarity the toner has at the time of the primary transfer and returning the toner on the belt to the member at a contact zone to clean the belt, and an electrophotographic-photosensitive-member cleaner. The cartridge is dividable into an electrophotographic photosensitive member unit and an intermediate transfer belt unit and has a joining unit which joins the two units. The peripheral length and average thickness of the belt and the diameter of at least one of rollers over and around which the belt is placed satisfy specific conditions.

    摘要翻译： 处理盒一体地支撑电子照相感光构件，中间转印带，用于将调色剂图像主要从构件转印到带的主要传送器，用于在带上提供具有与 在一次转印时调色剂的极性和带上的调色剂返回到接触区的构件以清洁带，以及电子照相感光构件清洁剂。 墨盒可分为电子照相感光构件单元和中间转印带单元，并具有连接两个单元的接合单元。 带的周长和平均厚度以及带的至少一个辊的直径位于其周围和周围，满足特定条件。

    Image forming apparatus and intermediate transfer member
    8.
    发明授权
    Image forming apparatus and intermediate transfer member 失效
    图像形成装置和中间转印构件

    公开(公告)号：US5669052A

    公开(公告)日：1997-09-16

    申请号：US658625

    申请日：1996-06-05

    申请人： Takashi Kusaba ,  Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Tsunenori Ashibe

    发明人： Takashi Kusaba ,  Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Tsunenori Ashibe

    IPC分类号： G03G15/16

    CPC分类号： G03G15/162

    摘要： An image forming apparatus includes a first image-forming member such as an electrophotographic photosensitive member, and an intermediate transfer member for receiving an image formed on the first image-bearing member and transferring the image onto a second image-bearing member such as plain paper. The intermediate transfer member has a surface layer comprising a binder and a powder dispersed therein. The binder is adjusted to have a tensile strength of at least 300 kg-f/cm.sup.2, an elongation of at least 150%, and a tensile stress of at most 250 kg-f/cm.sup.2 at an elongation of 100%. The powder may be a lubricating powder or an electroconductive powder.

    摘要翻译： 图像形成装置包括诸如电子照相感光构件的第一图像形成构件和用于接收在第一图像承载构件上形成的图像并将图像转印到诸如普通纸的第二图像承载构件上的中间转印构件 。 中间转印构件具有包含粘合剂和分散在其中的粉末的表面层。 将粘合剂调节至拉伸强度为至少300kg-f / cm 2，伸长率至少为150％，拉伸应力在100％伸长率时至多为250kg-f / cm 2。 粉末可以是润滑粉末或导电粉末。

    Image forming apparatus for cleaning residual toner from an intermediate transfer member
    10.
    发明授权
    Image forming apparatus for cleaning residual toner from an intermediate transfer member 失效
    用于从中间转印部件清洁残留调色剂的图像形成装置

    公开(公告)号：US5752130A

    公开(公告)日：1998-05-12

    申请号：US674836

    申请日：1996-07-03

    申请人： Atsushi Tanaka ,  Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Tsunenori Ashibe ,  Takashi Kusaba

    发明人： Atsushi Tanaka ,  Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Tsunenori Ashibe ,  Takashi Kusaba

    IPC分类号： G03G15/16

    CPC分类号： G03G15/161 ,  G03G2215/0177 ,  G03G2215/1657 ,  G03G2215/1661

    摘要： An image forming apparatus includes a first image-bearing member, latent image-forming unit for forming an electrostatic latent image on the first image-bearing member, developer for developing the electrostatic latent image with a toner to form a toner image, an intermediate transfer member for receiving the toner image by primary transfer and transferring the toner image onto a second image-bearing member by secondary transfer, a charging member for charging a residual toner remaining on the intermediate transfer member after the secondary transfer, and a recovery member for recovering the charged residual toner at a recovery position by voltage application. The intermediate transfer member exhibits a charging characteristic such that it has a surface potential of at most 500 volts as an absolute value at the recovery position. The intermediate transfer member having such a charging characteristic is effective in suppressing an occurrence of electric discharge at the recovery position of the residual toner to provide an excellent cleaning performance.

    摘要翻译： 图像形成装置包括第一图像承载部件，用于在第一图像承载部件上形成静电潜像的潜像形成单元，用调色剂显影静电潜像以形成调色剂图像的显影剂，中间转印 用于通过一次转印接收调色剂图像的构件，以及通过二次转印将调色剂图像转印到第二图像承载构件上;用于在二次转印之后对残留在中间转印构件上的残留调色剂充电的充电构件和用于回收的回收构件 通过电压施加在恢复位置的带电残留调色剂。 中间转印部件具有使其具有至多500伏特的表面电位作为恢复位置处的绝对值的充电特性。 具有这种充电特性的中间转印部件有效地抑制在残留调色剂的恢复位置发生放电，以提供优异的清洁性能。