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50 条记录 (耗时 0.019 秒)

    Sheet feeder for an image forming apparatus
    1.
    发明授权
    Sheet feeder for an image forming apparatus 失效
    用于图像形成装置的片材进给器

    公开(公告)号：US5482265A

    公开(公告)日：1996-01-09

    申请号：US283663

    申请日：1994-08-01

    申请人： Yasushi Nakazato ,  Hiroyuki Shibaki ,  Tetsuo Yamanaka ,  Hiroshi Hosokawa

    发明人： Yasushi Nakazato ,  Hiroyuki Shibaki ,  Tetsuo Yamanaka ,  Hiroshi Hosokawa

    IPC分类号： B65H5/06 ,  B65H9/00 ,  G03G15/00 ,  B65H5/34

    CPC分类号： G03G15/6529 ,  G03G2215/00945

    摘要： A sheet feeder incorporated in an image forming apparatus and allowing the distance between the preceding sheet and the succeeding sheet to be reduced to a minimum necessary one. A pair of control rollers whose transport speed is controllable are located upstream of an image forming section with respect to an intended direction of sheet transport. An image transfer and paper separation unit is located at the image forming section. The transport speed of the control rollers is made higher than an image forming speed for any desired period of time after the leading edge of a sheet has been gripped by said control rollers and before the leading edge reaches the image forming section. As a result the distance between the preceding and succeeding sheets is reduced to increase the number of images which can be formed for a unit time without the transport speed at the image forming section being increased.

    摘要翻译： 包含在图像形成装置中并且允许将前一张纸和后续纸张之间的距离减小到最小必需纸张的进纸器。 传送速度可控的一对控制辊相对于纸张传送的预定方向位于图像形成部分的上游。 图像转印和纸分离单元位于图像形成部分。 在片材的前缘被所述控制辊夹紧之后并且在前缘到达图像形成部分之前，使控制辊的传送速度高于图像形成速度任何期望的时间段。 结果，前后片之间的距离减小，以增加在单位时间内形成的图像的数量，而图像形成部分的传送速度不增加。

    Developing device for an electrophotographic recording apparatus including bias control of a toner supplying roller
    6.
    发明授权
    Developing device for an electrophotographic recording apparatus including bias control of a toner supplying roller 失效
    一种用于电子照相记录装置的显影装置，包括调色剂供应辊的偏压控制

    公开(公告)号：US5826144A

    公开(公告)日：1998-10-20

    申请号：US638697

    申请日：1996-04-26

    申请人： Eiji Takenaka ,  Kazuhiro Yuasa ,  Shuichi Endoh ,  Iwao Matsumae ,  Yoshiaki Tanaka ,  Hiroshi Hosokawa ,  Mugijiroh Uno ,  Hiroshi Saitoh ,  Toshihiro Sugiyama ,  Tetsuo Yamanaka ,  Eisaku Murakami ,  Satoru Komatsubara

    发明人： Eiji Takenaka ,  Kazuhiro Yuasa ,  Shuichi Endoh ,  Iwao Matsumae ,  Yoshiaki Tanaka ,  Hiroshi Hosokawa ,  Mugijiroh Uno ,  Hiroshi Saitoh ,  Toshihiro Sugiyama ,  Tetsuo Yamanaka ,  Eisaku Murakami ,  Satoru Komatsubara

    IPC分类号： G03G15/06 ,  G03G15/08

    CPC分类号： G03G15/0808 ,  G03G2215/0614

    摘要： In an electrophotographic recording apparatus of the type using a single-ingredient type developer, i.e., toner, a developing device has a developing roller for conveying the toner deposited thereon, and an intermediate roller for conveying the toner transferred theretofrom the developing roller and depositing it on a latent image electrostatically formed on an image carrier to thereby produce a corresponding toner image. During the development of an area of the image carrier other than a latent image area, a bias assigned to the developing roller is switched over to thereby form an electric field different in direction from an electric field assigned to the formation of the toner image between the two rollers. Further, before the rotation of the image carrier is stopped, the bias assigned to the developing roller is again switched in order to form the electric field for the formation of the toner image between the rollers. As a result, a toner layer is formed on the intermediate roller. Subsequently, the rotation of the image carrier is stopped. The device obviates defective images ascribable to the adhesion of the image carrier and intermediate roller while eliminating background contamination and wasteful toner consumption.

    摘要翻译： 在使用单成分型显影剂（即调色剂）的电子照相记录装置中，显影装置具有用于输送沉积在其上的调色剂的显影辊和用于输送从显影辊转移到其上的调色剂并将其沉积的中间辊 在静电形成在图像载体上的潜像上，从而产生相应的调色剂图像。 在除了潜像区域之外的图像载体的区域的显影期间，分配给显影辊的偏压被切换，从而形成与分配给形成调色剂图像的电场不同的方向的电场 两个滚筒。 此外，在停止图像载体的旋转之前，再次切换分配给显影辊的偏压，以形成用于在辊之间形成调色剂图像的电场。 结果，在中间辊上形成调色剂层。 随后，停止图像载体的旋转。 该装置消除由于图像载体和中间辊的粘附而导致的不良图像，同时消除背景污染和浪费的调色剂消耗。

    Device for electrostatically developing a latent image on an image carrier
    7.
    发明授权
    Device for electrostatically developing a latent image on an image carrier 失效
    用于在图像载体上静电显影潜像的装置

    公开(公告)号：US5666625A

    公开(公告)日：1997-09-09

    申请号：US560977

    申请日：1995-11-20

    申请人： Satoru Komatsubara ,  Kazuhiro Yuasa ,  Shuichi Endoh ,  Iwao Matsumae ,  Yoshiaki Tanaka ,  Hiroshi Hosokawa ,  Mugijiro Uno ,  Hiroshi Saitoh ,  Eiji Takenaka ,  Toshihiro Sugiyama ,  Tetsuo Yamanaka ,  Eisaku Murakami

    发明人： Satoru Komatsubara ,  Kazuhiro Yuasa ,  Shuichi Endoh ,  Iwao Matsumae ,  Yoshiaki Tanaka ,  Hiroshi Hosokawa ,  Mugijiro Uno ,  Hiroshi Saitoh ,  Eiji Takenaka ,  Toshihiro Sugiyama ,  Tetsuo Yamanaka ,  Eisaku Murakami

    IPC分类号： G03G15/09 ,  G03G9/08 ,  G03G9/097 ,  G03G13/08 ,  G03G15/06 ,  G03G15/08

    CPC分类号： G03G9/09791 ,  G03G13/08 ,  G03G15/0808 ,  G03G9/0819

    摘要： In an image forming apparatus, a developing device has a first developer carrier for depositing a developer thereon, a regulating member for regulating the amount of the developer deposited on the first developer carrier, and a second developer carrier having an elastic surface, and contacting the first developer carrier while biting into it by a predetermined amount. The developer is provided with a preselected degree of fluidity. Hence, even when the same portion of the surface of the second developer carrier runs a plurality of times past a position where the two developer carriers contact each other without any developer being fed from the second developer carrier to an image carrier, the first developer carrier can surely strip the developer from the second developer carrier. As a result, a developer on which a predetermined amount of charge is deposited is transferred from the first developer carrier to the second developer carrier. This successfully protects images from defects. Particularly, when the developer has a zinc stearate content of greater than 0.1 wt %, it is possible to prevent the developer from melting and adhering to a member which regulates the developer.

    摘要翻译： 在图像形成装置中，显影装置具有用于在其上沉积显影剂的第一显影剂载体，用于调节沉积在第一显影剂载体上的显影剂的量的调节构件和具有弹性表面的第二显影剂载体， 第一显影剂载体同时咬入预定量。 显影剂具有预选的流动性。 因此，即使当第二显影剂载体的表面的相同部分多次经过两个显影剂载体彼此接触的位置，而没有将任何显影剂从第二显影剂载体供给到图像载体时，第一显影剂载体 可以肯定地从第二个开发商运营商剥离显影剂。 结果，其上沉积有预定量的电荷的显影剂从第一显影剂载体转移到第二显影剂载体。 这成功地保护图像免受缺陷。 特别是，当显影剂的硬脂酸锌含量大于0.1重量％时，可以防止显影剂熔化并附着在调节显影剂的部件上。