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    Image forming apparatus with cleanable transfer roller
    3.
    发明授权
    Image forming apparatus with cleanable transfer roller 有权
    具有可清洁转印辊的成像设备

    公开(公告)号：US06275671B1

    公开(公告)日：2001-08-14

    申请号：US09467261

    申请日：1999-12-20

    申请人： Toshiyuki Hamada ,  Tetsuro Tomoe ,  Tadahiro Kiyosumi ,  Naoyuki Ishida

    发明人： Toshiyuki Hamada ,  Tetsuro Tomoe ,  Tadahiro Kiyosumi ,  Naoyuki Ishida

    IPC分类号： G03G2100

    CPC分类号： G03G15/168 ,  G03G15/167 ,  G03G2215/1652

    摘要： A transfer roller is spaced away from the outer surface of a photosensitive drum by a specified distance to prevent the abrasion and damage of the photosensitive drum by the contact of the transfer roller and the photosensitive drum. The transfer roller not in contact with the photosensitive drum can be formed to have a sufficient hardness without damaging the outer surface of the photosensitive drum. Further, since the transfer roller has a sufficient hardness, cleaning blades can be held in without damaging the transfer roller with a sufficiently large force without damaging the transfer roller, thereby securely scraping off toner and the line adhered to the transfer roller and preventing the rear surface of a transfer sheet from being smeared.

    摘要翻译： 转印辊与感光鼓的外表面间隔一定距离，以防止感光鼓通过转印辊和感光鼓的接触而磨损和损坏。 不与感光鼓接触的转印辊可以形成为具有足够的硬度而不损坏感光鼓的外表面。 此外，由于转印辊具有足够的硬度，因此可以以足够大的力将清洁刮刀保持在不会损坏转印辊的同时不会损坏转印辊，从而可靠地刮除调色剂和附着在转印辊上的线，并防止转印辊的后部 转印片的表面被弄脏。

    Unit positioning member for an image forming apparatus
    4.
    发明授权
    Unit positioning member for an image forming apparatus 失效
    用于图像形成装置的单元定位构件

    公开(公告)号：US5802426A

    公开(公告)日：1998-09-01

    申请号：US864512

    申请日：1997-05-28

    申请人： Masahiko Miyazaki ,  Naoyuki Ishida ,  Junichi Inada ,  Tadahiro Kiyosumi ,  Tetsuya Ichigotani

    发明人： Masahiko Miyazaki ,  Naoyuki Ishida ,  Junichi Inada ,  Tadahiro Kiyosumi ,  Tetsuya Ichigotani

    IPC分类号： G03G15/00 ,  G03G15/20 ,  G03G21/16

    CPC分类号： G03G15/2064 ,  G03G21/1633 ,  G03G21/1638 ,  G03G2221/1639 ,  G03G2221/1654

    摘要： An image forming apparatus according to the present invention comprises three units, that is, an image forming unit 40, a fixing unit 60, and a transfer unit 50. The three units are mounted on a main frame 10 with a positional relationship upon being positioned therebetween. The image forming unit 40 is fixed to a predetermined position with respect to the main frame 10. Further, the main frame 10 comprises a positioning pin 14 arranged in a predetermined positional relationship with the image forming unit 40. The fixing unit 60 and the transfer unit 50 are positioned upon being engaged with the positioning pin 14. Consequently, there is no shift in position among the image forming unit 40, the transfer unit 50, and the fixing unit 60. The three units can be correctly mounted on the main frame 10.

    摘要翻译： 根据本发明的图像形成装置包括三个单元，即图像形成单元40，定影单元60和转印单元50.三个单元在定位时以位置关系安装在主框架10上 之间。 图像形成单元40相对于主框架10固定到预定位置。此外，主框架10包括以与图像形成单元40预定的位置关系布置的定位销14.定影单元60和转印 单元50定位在与定位销14接合的位置。因此，在图像形成单元40，转印单元50和定影单元60之间不存在位置偏移。三个单元可以被正确地安装在主框架 10。

    Image forming machine with transfer roller
    5.
    发明授权
    Image forming machine with transfer roller 失效
    带转印辊的成像机

    公开(公告)号：US5867761A

    公开(公告)日：1999-02-02

    申请号：US971041

    申请日：1997-11-14

    申请人： Naoyuki Ishida ,  Yoshifumi Okauchi ,  Yukihiro Ito ,  Masahiko Miyazaki ,  Tetsuya Ichigotani ,  Shoji Hirano ,  Takahisa Nakaue

    发明人： Naoyuki Ishida ,  Yoshifumi Okauchi ,  Yukihiro Ito ,  Masahiko Miyazaki ,  Tetsuya Ichigotani ,  Shoji Hirano ,  Takahisa Nakaue

    IPC分类号： G03G15/00

    CPC分类号： G03G15/00

    摘要： An image forming machine having a transfer roller comprises a rotatably disposed photoconductor drum, a transfer roller disposed opposite the photoconductor drum with a predetermined gap provided therebetween, a register roller pair for feeding a transfer sheet toward a transfer area where the photoconductor drum and the transfer roller are opposed to each other, transfer sheet guide means disposed between the register roller pair and the transfer area, and a fixing roller pair for fixing a toner image transferred to the transfer sheet passing through the transfer area. The transfer sheet guide means comprises an inner guide plate and an outer guide plate, and the inner guide plate has a linear guide portion extending toward a predetermined position on the peripheral surface of the photoconductor drum. The predetermined position is set in an angular range (.theta.) covering 12.degree. to 23.degree. upstream, in the direction of rotation of the photoconductor drum, from a line connecting the center of rotation of the photoconductor drum to the center of rotation of the transfer roller, while the linear guide portion of the inner guide plate forms an angle (.alpha.) with a tangent to the photoconductor drum at the predetermined position, the angle (.alpha.) being set at 19.degree. to 30.degree..

    摘要翻译： 具有转印辊的图像形成机包括可旋转地设置的感光鼓，与感光鼓相对设置的转印辊，其间设置有预定的间隙;对准辊对，用于将转印片朝向感光鼓和转印区域 辊彼此相对，设置在对准辊对和转印区域之间的转印纸引导装置和用于固定转印到通过转印区域的转印纸上的调色剂图像的定影辊对。 转印纸引导装置包括内引导板和外引导板，并且内引导板具有朝向感光鼓的外周表面上的预定位置延伸的线性引导部。 将预定位置设置在从感光鼓的旋转中心连接到转印器的旋转中心的线上，在感光鼓的旋转方向上游12°至23°的角度范围（θ） 滚子，而内引导板的线性引导部分在预定位置处形成与感光鼓相切的角度（α），角度（α）设定在19°至30°。

    Imaging unit
    6.
    发明授权
    Imaging unit 失效
    成像单位

    公开(公告)号：US5848330A

    公开(公告)日：1998-12-08

    申请号：US965891

    申请日：1997-11-07

    申请人： Takahisa Nakaue ,  Yoshifumi Okauchi ,  Yukihiro Ito ,  Naoyuki Ishida ,  Masahiko Miyazaki ,  Tetsuya Ichigotani ,  Shoji Hirano

    发明人： Takahisa Nakaue ,  Yoshifumi Okauchi ,  Yukihiro Ito ,  Naoyuki Ishida ,  Masahiko Miyazaki ,  Tetsuya Ichigotani ,  Shoji Hirano

    IPC分类号： G03G21/16 ,  G03G15/08 ,  G03G21/00 ,  G03G15/04

    CPC分类号： G03G15/0813 ,  G03G15/0896

    摘要： An imaging unit includes a developer unit which is supported rotatably about a predetermined rotation axis thereof by means of a drum unit. Spacing regulation sleeves are respectively fitted around opposite ends of a support shaft of a developer roller for regulating a spacing between the photoreceptor drum and the developer roller. A driven gear is engaged with one end of the support shaft of the developer roller for integral rotation thereof, and adapted to be driven by a drive transmission gear. By utilizing a driving force applied to the driven gear, the developer unit is biased about the rotation axis to press one spacing regulation sleeve fitted around one end of the support shaft of the developer roller against the photoreceptor drum. The other spacing regulation sleeve fitted around the other end of the support shaft of the developer roller is resiliently pressed against the photoreceptor drum by means of a resilient member.

    摘要翻译： 成像单元包括显影单元，该显影单元通过鼓单元绕其预定旋转轴线可旋转地支撑。 间隔调节套管分别安装在显影辊的支撑轴的相对两端，用于调节感光鼓和显影辊之间的间隔。 从动齿轮与显影辊的支撑轴的一端接合，以使其一体旋转，并且适于由驱动传动齿轮驱动。 通过利用施加到从动齿轮的驱动力，显影单元围绕旋转轴线偏置，以将围绕显影辊的支撑轴的一端装配的一个间隔调节套筒压靠在感光鼓上。 围绕显影辊的支撑轴的另一端安装的另一个间隔调节套筒通过弹性构件弹性压靠在感光鼓上。

    Image-forming machine capable of opening to permit ready access to internal components
    7.
    发明授权
    Image-forming machine capable of opening to permit ready access to internal components 失效
    图像形成机能够打开以便准备进入内部部件

    公开(公告)号：US5897244A

    公开(公告)日：1999-04-27

    申请号：US971622

    申请日：1997-11-17

    申请人： Masahiko Miyazaki ,  Yoshifumi Okauchi ,  Naoyuki Ishida ,  Yukihiro Ito ,  Tetsuya Ichigotani ,  Shoji Hirano ,  Takahisa Nakaue

    发明人： Masahiko Miyazaki ,  Yoshifumi Okauchi ,  Naoyuki Ishida ,  Yukihiro Ito ,  Tetsuya Ichigotani ,  Shoji Hirano ,  Takahisa Nakaue

    IPC分类号： B65H3/06 ,  B65H9/06 ,  G03G15/00

    CPC分类号： B65H9/006 ,  B65H3/0638 ,  B65H3/50 ,  G03G15/6564 ,  B65H2404/1112 ,  G03G2215/00544 ,  G03G2215/00721

    摘要： An image-forming machine has a sheet member conveying passage extending through a transfer zone and a fixing zone, a sheet member-feeder for feeding a sheet member to the sheet member conveying passage, and a sheet member conveyor for conveying the sheet member through the sheet member conveying passage. A housing of the image-forming machine has a lower surface defined by an intermediate lower wall and an upper surface defined by an intermediate upper wall, and has a space of which the front surface is opened. The downstream end portion of the sheet member conveying passage extends along one side portion of the intermediate lower wall on the lower side thereof. That one side portion of the intermediate lower wall is defined by an opening/closing member which is brought to the open position to open the downstream end portion of the sheet member conveying passage. The sheet member conveyer includes a pair of register rollers. After the leading edge of the sheet member delivered to the sheet member conveying passage is brought into contact with the nip of the pair of register rollers, the pair of register rollers are preliminarily rotated for only a predetermined period of time.

    摘要翻译： 图像形成机具有延伸通过转印区域和固定区域的片材输送通道，用于将片材元件供给到片材输送通道的片材供给器，以及片材输送机，用于通过该片材输送通道 片材输送通道。 图像形成机的壳体具有由中间下壁和由中间上壁限定的上表面限定的下表面，并且具有其前表面打开的空间。 片材输送通道的下游端部分在下侧的中间下壁的一侧部分延伸。 中间下壁的一侧部分由打开/关闭构件限定，打开/关闭构件打开片材构件输送通道的下游端部。 片材输送机包括一对定位辊。 在输送到片材输送通道的片状构件的前缘与一对对准辊的辊隙接触之后，一对对准辊预先旋转预定的时间。

    Image forming apparatus
    8.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US07995958B2

    公开(公告)日：2011-08-09

    申请号：US12411617

    申请日：2009-03-26

    申请人： Syoukou Gon ,  Yuzuru Nanjo ,  Akihiro Kondo ,  Eiji Nakajima ,  Naoyuki Ishida ,  Kenichi Kasama ,  Tamami Asari

    发明人： Syoukou Gon ,  Yuzuru Nanjo ,  Akihiro Kondo ,  Eiji Nakajima ,  Naoyuki Ishida ,  Kenichi Kasama ,  Tamami Asari

    IPC分类号： G03G15/20 ,  H05B6/02

    CPC分类号： G03G15/2042 ,  G03G2215/2032

    摘要： An image forming apparatus includes a fixing unit fixing a toner image onto a sheet. The fixing unit includes a heating member having a sheet conveyed region that is set in accordance with the size of the sheet. The fixing unit further includes a coil generating magnetic field, a fixed core forming a magnetic path, movable cores forming a magnetic path together with the fixed core and arranged along the sheet conveyed region, a shielding member arranged on at least one movable core and shielding magnetism, and a magnetism adjustment unit rotating at least one movable core to switch the position of the shielding member between a shielding position where the shielding member is positioned inside the sheet conveyed region to shield the magnetism and a retracted position where the shielding member is positioned outside the sheet conveyed region to permit pass of the magnetism.

    摘要翻译： 图像形成装置包括将调色剂图像定影到片材上的定影单元。 定影单元包括具有根据片材尺寸设定的片材输送区域的加热构件。 定影单元还包括产生磁场的线圈，形成磁路的固定磁芯，与固定磁芯一起形成磁路并沿着薄片传送区域布置的可动磁芯，布置在至少一个可动磁芯和屏蔽层上的屏蔽部件 磁性和磁调节单元，其旋转至少一个可动芯，以将屏蔽构件的位置切换到屏蔽构件位于片材输送区域内部的屏蔽位置以屏蔽磁性和屏蔽构件定位的缩回位置 在纸张传送区域之外允许磁性通过。

    Fixing device
    9.
    发明授权
    Fixing device 有权
    固定装置

    公开(公告)号：US07702273B2

    公开(公告)日：2010-04-20

    申请号：US12379248

    申请日：2009-02-17

    申请人： Naoyuki Ishida ,  Hideki Kitagawa ,  Akihiro Kondo

    发明人： Naoyuki Ishida ,  Hideki Kitagawa ,  Akihiro Kondo

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2032

    摘要： A fixing device 6 according to the present invention has an endless-shaped heating belt 8, a first and a second roller 9 and 10 for stretching the heating belt 8, and a pressure roller 11 for nipping paper 2, together with the heating belt 8. The first roller 9 is supported so as to be rotatable by bearings 13 arranged at both ends of the first roller 9. The second roller 10 is supported so as to be rotatable by bearings 14 arranged at both ends of the second roller 10. The bearing 13 for supporting the first roller 9 is arranged more inward in an axial direction Z1 of the rollers than the bearing 14 for supporting the second roller 10.

    摘要翻译： 根据本发明的定影装置6具有环形加热带8，用于拉伸加热带8的第一和第二辊9和10以及用于将纸2的加压辊11与加热带8一起 第一辊9由第一辊9的两端支承的轴承13支承。第二辊10由第二辊10的两端的轴承14支承为可旋转。 用于支撑第一辊9的轴承13在辊轴线方向Z1上比用于支撑第二辊10的轴承14更向内布置。

    FIXING DEVICE AND IMAGE FORMING APPARATUS EQUIPPED WITH THE SAME
    10.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS EQUIPPED WITH THE SAME 有权
    固定装置和图像形成装置

    公开(公告)号：US20080170894A1

    公开(公告)日：2008-07-17

    申请号：US12014263

    申请日：2008-01-15

    申请人： Naoyuki Ishida ,  Akihiro Kondo

    发明人： Naoyuki Ishida ,  Akihiro Kondo

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2042 ,  G03G2215/2016

    摘要： A fixing device for image forming apparatus includes: a first nip member in a shape of an endless belt and a second nip member that rotates while pressed against the first nip member. A heat source heats at least one of the nip members. A pressure receiver receives pressure applied to the first nip member from the second nip member. A sliding contact has a contact surface that makes sliding contact with an inner surface of an axial end of the first nip member. A supporting mechanism supports the sliding contact to displace the contact surface thereof away from the pressure receiver as the first nip member moves away from the sliding contact along the axial direction. The displacement increases frictional forces between the contact surface and the inner surface of the first nip member, thus suppressing axial displacement of the first nip member from the sliding contact.

    摘要翻译： 一种用于图像形成装置的定影装置包括：环形带状的第一咬合部件和第二压合部件，其在压靠在第一压合部件上的同时旋转。 热源加热至少一个夹持部件。 压力接收器承受从第二夹持部件施加到第一夹持部件的压力。 滑动触点具有与第一咬合部件的轴向端部的内表面滑动接触的接触表面。 当第一咬合部件沿轴向移动离开滑动接触件时，支撑机构支撑滑动接触件使其接触表面远离压力接收器移位。 位移增加了接触表面与第一咬合部件的内表面之间的摩擦力，从而抑制了第一咬合部件与滑动接触的轴向位移。