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29 条记录 (耗时 0.057 秒)

    Image forming apparatus with first and second charging members
    21.
    发明授权
    Image forming apparatus with first and second charging members 失效
    具有第一和第二充电构件的图像形成装置

    公开(公告)号：US5999784A

    公开(公告)日：1999-12-07

    申请号：US124228

    申请日：1998-07-29

    申请人： Shinichi Tsukida ,  Kimitaka Ichinose

    发明人： Shinichi Tsukida ,  Kimitaka Ichinose

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

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

    摘要： An image forming apparatus has an image bearing member, an image forming unit for forming a toner image on the image bearing member and having a first charge member for charging the image bearing member, a rotatable intermediate transfer member onto which the toner image on the image bearing member is transferred at a first transfer position, the toner image on the intermediate transfer member being transferred onto a transfer material at a second transfer position, and a second charge member for charging residual toner remaining on the intermediate transfer member, the second charge member charging the residual toner on the intermediate transfer member with polarity opposite to charging polarity of the first charge member for charging the image bearing member, after the toner image is transferred from the intermediate transfer member to the transfer material. At the first transfer position, an electric field for transferring the residual toner on the intermediate transfer member charged by the second charge member onto the image bearing member is generated, and a charging area of the second charge member in a longitudinal direction thereof is disposed internally of a longitudinal charging area of the first charge member.

    摘要翻译： 图像形成装置具有图像承载部件，图像形成单元，用于在图像承载部件上形成调色剂图像，并且具有用于对图像承载部件充电的第一充电部件，可旋转的中间转印部件，图像上的调色剂图像 支承构件在第一转印位置被转印，中间转印元件上的调色剂图像在第二转印位置被转印到转印材料上，第二充电元件用于对残留在中间转印元件上的残留调色剂充电，第二充电元件 在调色剂图像从中间转印部件转印到转印材料之后，将极性与第一带电部件的充电极性相反的充电图像承载部件的中性转印部件上的残留调色剂充电。 在第一传送位置，产生用于将由第二充电部件充电的中间转印部件上的残留调色剂转印到图像承载部件上的电场，并且将第二带电部件沿其纵向的充电区域设置在内部 的第一充电部件的纵向充电区域。

    Image forming apparatus and control method for the image forming apparatus
    23.
    发明授权
    Image forming apparatus and control method for the image forming apparatus 失效
    图像形成装置和图像形成装置的控制方法

    公开(公告)号：US07068956B2

    公开(公告)日：2006-06-27

    申请号：US11126269

    申请日：2005-05-11

    申请人： Shinichi Tsukida ,  Katsuhiro Sakaizawa ,  Masahiro Shibata

    发明人： Shinichi Tsukida ,  Katsuhiro Sakaizawa ,  Masahiro Shibata

    IPC分类号： G03G15/01 ,  G03G15/08

    CPC分类号： G03G15/0856 ,  G03G15/0862 ,  G03G15/0863 ,  G03G2215/0177

    摘要： An image forming apparatus, including: an image bearing member on a surface of which an electrostatic latent image is formed; a developing device which contains a developer and which has a rotatable developer carrying member, which abuts against the surface of the image bearing member, and a storage device storing information on image formation history, the developing device being adapted to visualize the electrostatic latent image on the surface of the image bearing member as the developer carrying member carries the developer to the electrostatic latent image; a moving mechanism which moves the developing device to one of a first position where development is performed and a second position where development is not performed; and a control device which controls, based upon the information on image formation history stored in the storage device, an operation for giving a charge to the developer according to a lapsed time from a finish time of image formation, in a state in which the developing device is moved to the second position by the moving mechanism. In the image forming apparatus, a toner is charged sufficiently in the developing device, and image failure due to insufficiency in a charging amount of toner may be prevented, thereby capable of forming a high quality image.

    摘要翻译： 一种图像形成装置，包括：在其表面上形成静电潜像的图像承载部件; 显影装置，其包含显影剂并且具有抵靠图像承载部件的表面的可旋转的显影剂承载部件和存储关于图像形成历史的信息的存储装置，所述显影装置适于使静电潜像可视化 作为显影剂承载构件的图像承载构件的表面将显影剂携带到静电潜像; 移动机构，其将显影装置移动到执行显影的第一位置和不执行显影的第二位置之一; 以及控制装置，其基于存储在存储装置中的图像形成历史的信息，根据从图像形成的完成时间起的经过时间向显影剂充电的操作，在显影 装置通过移动机构移动到第二位置。 在图像形成装置中，调色剂在显影装置中充分充电，并且可以防止由于调色剂的充电量不足导致的图像故障，从而能够形成高质量的图像。

    Image forming apparatus and control method for the image forming apparatus
    25.
    发明申请
    Image forming apparatus and control method for the image forming apparatus 失效
    图像形成装置和图像形成装置的控制方法

    公开(公告)号：US20050201766A1

    公开(公告)日：2005-09-15

    申请号：US11126269

    申请日：2005-05-11

    申请人： Shinichi Tsukida ,  Katsuhiro Sakaizawa ,  Masahiro Shibata

    发明人： Shinichi Tsukida ,  Katsuhiro Sakaizawa ,  Masahiro Shibata

    IPC分类号： G03G9/08 ,  G03G15/00 ,  G03G15/01 ,  G03G15/08 ,  G03G21/14

    CPC分类号： G03G15/0856 ,  G03G15/0862 ,  G03G15/0863 ,  G03G2215/0177

    摘要： An image forming apparatus, including: an image bearing member on a surface of which an electrostatic latent image is formed; a developing device which contains a developer and which has a rotatable developer carrying member, which abuts against the surface of the image bearing member, and a storage device storing information on image formation history, the developing device being adapted to visualize the electrostatic latent image on the surface of the image bearing member as the developer carrying member carries the developer to the electrostatic latent image; a moving mechanism which moves the developing device to one of a first position where development is performed and a second position where development is not performed; and a control device which controls, based upon the information on image formation history stored in the storage device, an operation for giving a charge to the developer according to a lapsed time from a finish time of image formation, in a state in which the developing device is moved to the second position by the moving mechanism. In the image forming apparatus, a toner is charged sufficiently in the developing device, and image failure due to insufficiency in a charging amount of toner may be prevented, thereby capable of forming a high quality image.

    摘要翻译： 一种图像形成装置，包括：在其表面上形成有静电潜像的图像承载部件; 显影装置，其包含显影剂并且具有抵靠图像承载部件的表面的可旋转的显影剂承载部件和存储关于图像形成历史的信息的存储装置，所述显影装置适于使静电潜像可视化 作为显影剂承载构件的图像承载构件的表面将显影剂携带到静电潜像; 移动机构，其将显影装置移动到执行显影的第一位置和不执行显影的第二位置之一; 以及控制装置，其基于存储在存储装置中的图像形成历史的信息，根据从图像形成的完成时间开始的时间，对显影剂进行充电的操作，在显影 装置通过移动机构移动到第二位置。 在图像形成装置中，调色剂在显影装置中充分充电，并且可以防止由于调色剂的充电量不足导致的图像故障，从而能够形成高质量的图像。

    Image forming apparatus with pixel density based light beam control
    28.
    发明授权
    Image forming apparatus with pixel density based light beam control 失效
    具有基于像素密度的光束控制的图像形成装置

    公开(公告)号：US06559875B2

    公开(公告)日：2003-05-06

    申请号：US09879009

    申请日：2001-06-13

    申请人： Keiji Okano ,  Shinichi Tsukida ,  Akira Domon

    发明人： Keiji Okano ,  Shinichi Tsukida ,  Akira Domon

    IPC分类号： G03G1504

    CPC分类号： H04N1/40043 ,  H04N1/0408 ,  H04N1/295 ,  H04N1/40037

    摘要： An image forming apparatus which includes an image bearing body and a light beam scanner for exposing the image bearing body, which is charged, based on an image signal and forming an electrostatic latent image on the image bearing body. A rise time or a fall time of a light beam emitted from the light beam scanner is controlled when a pixel density of the electrostatic latent image is switched.

    摘要翻译： 一种图像形成装置，其包括图像承载体和光束扫描器，用于基于图像信号对图像承载体进行曝光，并且在图像承载体上形成静电潜像。 当静电潜像的像素密度被切换时，控制从光束扫描器发射的光束的上升时间或下降时间。

    Image forming apparatus
    29.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US6125247A

    公开(公告)日：2000-09-26

    申请号：US334561

    申请日：1999-06-21

    申请人： Shinichi Tsukida ,  Toshiaki Miyashiro ,  Kimitaka Ichinose

    发明人： Shinichi Tsukida ,  Toshiaki Miyashiro ,  Kimitaka Ichinose

    IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/16 ,  G03G21/14

    CPC分类号： G03G15/0131 ,  G03G2215/0177

    摘要： An image forming apparatus includes a movable image bearing member for bearing different color toner images; a movable intermediary transfer member including an electroconductive layer and a surface layer; first transferring means for applying a voltage to the electroconductive layer to sequentially and superimposedly transfer the different color toner images from the image bearing member onto the intermediary transfer member at a first transfer position; second transferring means for electrostatically transferring the different color toner images from the intermediary transfer member on the transfer material at a second transfer position, wherein the second transferring means is disposed faced to such a side of the intermediary transfer member as receives the toner image; wherein the image forming apparatus is operable with the transfer material having a length measured in a direction of feeding of the transfer material, which is longer than a distance between the first transfer position to the second transfer position in a moving direction of the intermediary transfer member; wherein when a toner image is formed on the transfer material having a length in the transfer material feeding direction longer than the distance, the different color toner images on the intermediary transfer member pass through the first transfer position in a period which is after completion of transfer of the different color toner image from the image bearing member onto the intermediary transfer member by the first transferring means and before transfer of the different color toner images from the intermediary transfer member onto the transfer material by the second transferring means; control means for switching a voltage applied to the electroconductive layer by the first transferring means from a first voltage for transferring a final color toner image from the image bearing member onto the intermediary transfer member to a second voltage having a smaller absolute value than that of the first voltage before a leading edge of the different color toner images on the intermediary transfer member reaches the first transfer position; wherein the second transferring means starts transfer of the toner image from the intermediary transfer member onto the transfer material after the control means switches the voltage to the second voltage.