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    Image forming apparatus which back-transfers residual toner from an intermediate transfer member to a photosensitive drum
    1.
    发明授权
    Image forming apparatus which back-transfers residual toner from an intermediate transfer member to a photosensitive drum 失效
    图像形成装置将残留调色剂从中间转印部件反向转印到感光鼓上

    公开(公告)号：US5809373A

    公开(公告)日：1998-09-15

    申请号：US651858

    申请日：1996-05-21

    申请人： Yasuo Yoda ,  Katsuhiko Nishimura ,  Koichi Hiroshima ,  Shinichi Tsukida ,  Toru Kosaka

    发明人： Yasuo Yoda ,  Katsuhiko Nishimura ,  Koichi Hiroshima ,  Shinichi Tsukida ,  Toru Kosaka

    IPC分类号： G03G15/16

    CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/1652

    摘要： An image forming apparatus has an image bearing member; toner image forming unit for forming a toner image with non-magnetic toner on an image bearing member; intermediate transfer member contactable to the image bearing member and movable along an endless path; primary transfer unit for effecting primary image transfer of the toner image formed on the image bearing member onto the intermediate transfer member at a first transfer position; secondary transfer unit for effecting a secondary image transfer of the toner image from the intermediate transfer member on the transfer material at a second transfer position; and a residual toner charger for charging the residual toner remaining on the intermediate transfer member to a polarity opposite from a regular polarity thereof. After the secondary image transfer, the residual toner remaining on the intermediate transfer member is charged by the residual toner charger to the opposite polarity, and is then passed through the first transfer position during the primary image transfer, so that the residual toner is transferred back to the image bearing member substantially simultaneously with a next primary image transfer, thus removing the residual toner from the intermediate transfer member.

    摘要翻译： 图像形成装置具有图像承载部件; 调色剂图像形成单元，用于在图像承载部件上形成具有非磁性调色剂的调色剂图像; 中间转印部件，其能够与图像承载部件接触并沿着环形路径移动; 一次转印单元，用于在第一转印位置处将形成在图像承载部件上的调色剂图像初次转印到中间转印部件上; 二次转印单元，用于在第二转印位置进行从转印材料上的中间转印部件的调色剂图像的二次图像转印; 以及剩余调色剂充电器，用于将残留在中间转印部件上的剩余调色剂充电到与其正常极性相反的极性。 在二次图像转印之后，残留在中间转印部件上的剩余调色剂由剩余调色剂充电器充电至相反极性，然后在主图像转印期间通过第一转印位置，从而将残留调色剂转印回 在下一次图像转印的同时基本上与图像承载部件相接触，从而从中间转印部件去除残留的调色剂。

    Image forming apparatus having cleaning device for cleaning intermediate transfer member
    2.
    发明授权
    Image forming apparatus having cleaning device for cleaning intermediate transfer member 失效
    具有用于清洁中间转印部件的清洁装置的图像形成装置

    公开(公告)号：US5732310A

    公开(公告)日：1998-03-24

    申请号：US633470

    申请日：1996-04-17

    申请人： Koichi Hiroshima ,  Katsuhiko Nishimura ,  Shinichi Tsukida ,  Toru Kosaka ,  Yasuo Yoda

    发明人： Koichi Hiroshima ,  Katsuhiko Nishimura ,  Shinichi Tsukida ,  Toru Kosaka ,  Yasuo Yoda

    IPC分类号： G03G15/16

    CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/1652

    摘要： In an image forming apparatus a toner image is transferred onto a transfer material using an intermediate transfer member. The image forming apparatus has an image bearing member; a toner image forming unit for forming a toner image on the image bearing member; an intermediate transfer member movable along an endless path in contact with the image bearing member; a bias voltage applicator for applying a bias voltage to transfer the toner image from the image bearing member onto the intermediate transfer member at a first transfer position of the intermediate transfer member; and an image transfer device for transferring the toner image from the intermediate transfer member onto the transfer material at a second transfer position of the intermediate transfer member, a residual toner charge for charging residual toner remaining on the intermediate transfer member after image transfer therefrom, to a polarity opposite from a regular polarity of the toner to permit the residual toner to transfer back, simultaneously with a next image transfer at the first transfer position, to the image bearing member when the residual toner passes through the first transfer position.

    摘要翻译： 在图像形成装置中，使用中间转印部件将调色剂图像转印到转印材料上。 图像形成装置具有图像承载部件; 调色剂图像形成单元，用于在图像承载部件上形成调色剂图像; 中间转印部件，其沿着与所述图像承载部件接触的环状路径移动; 偏置电压施加器，用于在中间转印部件的第一转印位置处施加偏置电压以将调色剂图像从图像承载部件转印到中间转印部件上; 以及图像转印装置，用于在中间转印部件的第二转印位置处将调色剂图像从中间转印部件转印到转印材料上，剩余调色剂带电量用于在残留在中间转印部件上的剩余调色剂进行图像转印之后， 与调色剂的正常极性相反的极性，以便当剩余调色剂通过第一转印位置时，允许残留调色剂与第一转印位置处的下一次图像转印同时转印回图像承载部件。

    Image forming apparatus having dielectric constant relationship between image bearing member, intermediate transfer member and contact transfer device
    3.
    发明授权
    Image forming apparatus having dielectric constant relationship between image bearing member, intermediate transfer member and contact transfer device 失效
    在图像承载部件，中间转印部件和接触转印装置之间具有介电常数关系的图像形成装置

    公开(公告)号：US5701568A

    公开(公告)日：1997-12-23

    申请号：US705822

    申请日：1996-08-30

    申请人： Koichi Hiroshima ,  Katsuhiko Nishimura ,  Toru Kosaka ,  Yasuo Yoda

    发明人： Koichi Hiroshima ,  Katsuhiko Nishimura ,  Toru Kosaka ,  Yasuo Yoda

    IPC分类号： G03G15/01 ,  G03G15/16

    CPC分类号： G03G15/0131 ,  G03G15/162 ,  G03G2215/0177

    摘要： An image forming apparatus includes a first image-bearing member such as an electrophotographic photosensitive member, an intermediate transfer member for receiving a transferable image formed on the first image-bearing member, and contact transfer device for transferring the transferable image from the intermediate transfer member to a transfer material. The first image-bearing member has a surface layer having a dielectric constant .epsilon..sub.d, the intermediate transfer member has a surface layer having a dielectric constant .epsilon..sub.ITD and the contact transfer device has a surface layer having a dielectric constant .epsilon..sub.tr satisfying a relationship of; .epsilon..sub.d .ltoreq..epsilon..sub.ITD .ltoreq..epsilon..sub.tr. The intermediate transfer member exhibits a volume resistivity of 10.sup.6 -10.sup.10 ohm.cm (at an applied voltage of 1 kV), and the contact transfer device exhibits a volume resistivity of 10.sup.8 -10.sup.15 ohm.cm (at an applied voltage of 1 kV). As a result, it is possible to obtain high transfer efficiencies in both primary and secondary transfer over a wide transfer bias application range.

    摘要翻译： 图像形成装置包括第一图像承载构件，例如电子照相感光构件，用于接收形成在第一图像承载构件上的可转印图像的中间转印构件和用于从中间转印构件转印可转印图像的接触转印装置 转移材料。 第一图像承载构件具有介电常数εd的表面层，中间转印构件具有介电常数εITD的表面层，并且接触转移装置具有满足关系的介电常数εtr的表面层 ; epsilon d = 中间转印部件的体积电阻率为106-1010欧姆·厘米（施加电压为1千伏），接触转移装置的体积电阻率为108-1015欧姆·厘米（施加电压为1千伏） 。 结果，可以在宽的转印偏压施加范围内在一次和二次转印中获得高转印效率。

    Simultaneous cleaning of residual toner and toner image formation
    5.
    发明授权
    Simultaneous cleaning of residual toner and toner image formation 失效
    同时清洁残留调色剂和调色剂图像形成

    公开(公告)号：US05999763A

    公开(公告)日：1999-12-07

    申请号：US082917

    申请日：1998-05-21

    申请人： Koichi Hiroshima ,  Katsuhiko Nishimura

    发明人： Koichi Hiroshima ,  Katsuhiko Nishimura

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

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

    摘要： The present invention provides an image forming apparatus which includes a movable image bearing member for bearing a toner image, a movable intermediate transfer member to which the toner image on the image bearing member is electrostatically transferred at a first transfer position, and a charger for charging residual toner remaining on the intermediate transfer member after the toner image on the intermediate transfer member has been electrostatically transferred onto a transfer material at a second transfer position with polarity opposite to charging polarity of the normal toner on the image bearing member. An electric field is formed so that the residual toner charged by the charger from the intermediate transfer member onto the image bearing member and a transfer of a next toner image from the image bearing member onto the intermediate transfer member are simultaneously performed at the first transfer position. Also included is a controller for controlling so that a relative position of a first toner image transferred to a first transfer material from the intermediate transfer member with respect to the intermediate transfer member and a relative position of a second toner image transferred to a second transfer material from the intermediate transfer member with respect to the intermediate transfer member are differentiated.

    摘要翻译： 本发明提供了一种图像形成装置，其包括用于承载调色剂图像的可动图像承载部件，可动中间转印部件，图像承载部件上的调色剂图像在第一转印位置被静电转印到该可移动中间转印部件，以及充电器 在中间转印部件上的调色剂图像已经在与图像承载部件上的正常调色剂的充电极性极性相反的第二转印位置的转印材料上静电转印到中间转印部件上残留的残留调色剂。 形成电场，使得由充电器从中间转印部件充电到图像承载部件上的残留调色剂和将下一个调色剂图像从图像承载部件转印到中间转印部件上同时在第一转印位置 。 还包括一个控制器，用于控制使得相对于中间转印部件转印到第一转印材料的第一转印材料的相对位置和转印到第二转印材料上的第二调色剂图像的相对位置 从中间转印部件相对于中间转印部件是不同的。

    Image forming apparatus capable of discriminating a service life of detachably mounted process unit
    6.
    发明授权
    Image forming apparatus capable of discriminating a service life of detachably mounted process unit 失效
    能够辨别可拆卸安装的处理单元的使用寿命的图像形成装置

    公开(公告)号：US06754454B1

    公开(公告)日：2004-06-22

    申请号：US09575988

    申请日：2000-05-23

    申请人： Koichi Hiroshima ,  Masahide Kinoshita ,  Hironobu Isobe ,  Ryuichi Yoshizawa

    发明人： Koichi Hiroshima ,  Masahide Kinoshita ,  Hironobu Isobe ,  Ryuichi Yoshizawa

    IPC分类号： G03G1508

    CPC分类号： G03G21/1889 ,  G03G2215/0888 ,  G03G2221/1663 ,  G03G2221/1823

    摘要： An image forming apparatus includes an image bearing member; a developing device for developing a latent image formed on the image bearing member, the image bearing member and the developing means being detachably mountable to the apparatus as a process unit; a developer supply unit for supplying a developer to the developing means, the developer supply unit being detachably mountable to the apparatus; and a first memory mounted on the process unit. The first memory stores information relating to the developer supply unit.

    摘要翻译： 图像形成装置包括：图像承载部件; 用于显影形成在图像承载部件上的潜像的显影装置，图像承载部件和显影装置可拆卸地安装到装置上作为处理单元; 用于将显影剂供应到显影装置的显影剂供应单元，显影剂供应单元可拆卸地安装到装置上; 以及安装在处理单元上的第一存储器。 第一存储器存储与显影剂供应单元有关的信息。

    Image forming device
    7.
    发明授权
    Image forming device 失效
    图像形成装置

    公开(公告)号：US5264902A

    公开(公告)日：1993-11-23

    申请号：US4676

    申请日：1993-01-14

    申请人： Koichi Suwa ,  Masahiro Goto ,  Takahiro Inoue ,  Koichi Hiroshima ,  Shinichi Tsukida ,  Junichi Kato ,  Hideyuki Yano ,  Manabu Takano

    发明人： Koichi Suwa ,  Masahiro Goto ,  Takahiro Inoue ,  Koichi Hiroshima ,  Shinichi Tsukida ,  Junichi Kato ,  Hideyuki Yano ,  Manabu Takano

    IPC分类号： G03G15/20

    CPC分类号： G03G15/206

    摘要： The image forming device of the present invention relates to an image forming device having a moving member which moves while pressing a recording material against an image carrying member as the means of transferring the image on the image carrying member to the recording material. Further, the image forming device has a pair of moving members for fixing the image by conveying the recording material sandwiched therebetween, of which the moving member on the side not in contact with the unfixed image is a moving member having an elastic material layer and a resin surface layer. Further, the present invention has the surface of the moving member of the fixing member on the side not in contact with the unfixed image which is better mold releasability with that of the moving member of the image forming device.

    摘要翻译： 本发明的图像形成装置涉及一种图像形成装置，其具有移动构件，该移动构件作为将图像承载构件上的图像转印到记录材料的装置而将记录材料压靠在图像承载构件上移动。 此外，图像形成装置具有一对移动构件，用于通过传送夹在其间的记录材料来固定图像，其中与未定影图像不接触的一侧的移动构件是具有弹性材料层的移动构件和 树脂表面层。 此外，本发明的固定构件的移动构件的表面不与未定影图像接触的一侧，其与图像形成装置的移动构件的脱模性更好。