公开(公告)号：US07734235B2

公开(公告)日：2010-06-08

申请号：US11276666

申请日：2006-03-09

申请人： Atsushi Takehara ,  Akihiro Kawasaki ,  Yoshie Iwakura ,  Tomoya Adachi ,  Takafumi Miyazaki

发明人： Atsushi Takehara ,  Akihiro Kawasaki ,  Yoshie Iwakura ,  Tomoya Adachi ,  Takafumi Miyazaki

IPC分类号： G03G15/01

CPC分类号： G03G15/1615 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0129 ,  G03G2215/0158

摘要： In an image forming apparatus, an intermediate transfer belt is made of a resin film and is supported by a plurality of rollers. A driving roller that is one of the plurality of rollers, drives the intermediate transfer belt, and also functions as an opposing unit with respect to a secondary transfer roller. The driving roller is made of metal, and applies a bias to at least secondary transfer units, at least at a time of performing primary transfer to a plurality of image bearing bodies.

摘要翻译： 在图像形成装置中，中间转印带由树脂膜制成并被多个辊支撑。 作为多个辊之一的驱动辊驱动中间转印带，并且还用作相对于二次转印辊的相对单元。 驱动辊由金属制成，并且至少在进行一次转印到多个图像承载体时至少向二次转印单元施加偏压。

公开(公告)号：US07636539B2

公开(公告)日：2009-12-22

申请号：US11411128

申请日：2006-04-26

申请人： Akihiro Kawasaki ,  Atsushi Takehara ,  Yoshie Iwakura ,  Takafumi Miyazaki ,  Tomoya Adachi

发明人： Akihiro Kawasaki ,  Atsushi Takehara ,  Yoshie Iwakura ,  Takafumi Miyazaki ,  Tomoya Adachi

IPC分类号： G03G15/01

CPC分类号： G03G15/1615 ,  G03G2215/1614

摘要： An image forming unit includes four photoconductors, a belt extended around a driving roller and an extension-cum-primary transfer roller. Three primary transfer rollers sandwich the belt in association with a corresponding photoconductor. The extension-cum-primary transfer roller serves both as an extension roller and a primary transfer roller.

摘要翻译： 图像形成单元包括四个感光体，围绕驱动辊延伸的带和延伸与一次转印辊。 三个一次转印辊与相应的光电导体相关联地夹持带。 延伸 - 一次转印辊同时用作延伸辊和一次转印辊。

公开(公告)号：US07587159B2

公开(公告)日：2009-09-08

申请号：US11855739

申请日：2007-09-14

申请人： Kazuoki Fuwa ,  Masayuki Hagi ,  Yoshihiro Mikuriya ,  Hideaki Yasunaga ,  Hiroaki Kato ,  Yoshitaka Sekiguchi ,  Yoshie Iwakura

发明人： Kazuoki Fuwa ,  Masayuki Hagi ,  Yoshihiro Mikuriya ,  Hideaki Yasunaga ,  Hiroaki Kato ,  Yoshitaka Sekiguchi ,  Yoshie Iwakura

IPC分类号： G03G15/14

CPC分类号： G03G15/1685 ,  G03G2215/0132 ,  G03G2215/1614

摘要： Provided is an image forming method that comprises a charging step, an exposing step, a developing step, an intermediate transfer step and a secondary transfer step, wherein the diameter R (mm) of a secondary transfer roller used in the secondary transfer step and the distance A (mm) between a nip center of the secondary transfer roller and a site where paper contacts with a secondary transfer belt at ingress side satisfy the following relation, and the charge amount Q (μC/g) of the toner going into the secondary transfer step satisfies the following relation. R/40

摘要翻译： 提供了一种图像形成方法，其包括充电步骤，曝光步骤，显影步骤，中间转印步骤和二次转印步骤，其中在二次转印步骤中使用的二次转印辊的直径R（mm）和 二次转印辊的辊隙中心与进纸侧与二次转印带接触的位置之间的距离A（mm）满足以下关系，并且进入二次转印辊的调色剂的带电量Q（μC/ g） 转移步骤满足以下关系。 <？in-line-formula description =“In-line Formulas”end =“lead”？> R / 40 15 / A2

公开(公告)号：US07330686B2

公开(公告)日：2008-02-12

申请号：US11235779

申请日：2005-09-27

申请人： Kuniaki Nakano ,  Yoshie Iwakura ,  Susumu Murakami

发明人： Kuniaki Nakano ,  Yoshie Iwakura ,  Susumu Murakami

IPC分类号： G03G15/01

CPC分类号： G03G15/163 ,  G03G15/1685

摘要： A color image forming apparatus includes: a multiple number of process printing units, each having an photoreceptor drum for supporting a developer image formed with a developer corresponding to each color of color-separated image information; a transfer belt to which the developer images formed on the photoreceptor drums are transferred; and a transfer roller for transferring the transferred developer image to recording paper, and is constructed so that the transfer belt is formed of a material which makes it possible for the transfer belt to attenuate the voltage charged thereon by 1,000 V or greater while it moves from a position where secondary transfer is performed to a position where the initial primary transfer is performed.

摘要翻译： 彩色图像形成装置包括：多个处理印刷单元，每个处理印刷单元具有感光鼓，用于支撑用与分色图像信息的每种颜色对应的显影剂形成的显影剂图像; 在感光鼓上形成的显影剂图像被转印到的转印带; 以及用于将转印的显影剂图像转印到记录纸的转印辊，并且被构造成使得转印带由材料形成，该材料使得转印带可以使其上充电的电压在其上移动1,000V或更大，同时其从 执行二次转印的位置到执行初始一次转印的位置。

公开(公告)号：US06954605B2

公开(公告)日：2005-10-11

申请号：US10671990

申请日：2003-09-25

申请人： Susumu Murakami ,  Minoru Tomiyori ,  Yoshie Iwakura ,  Hideshi Izumi

发明人： Susumu Murakami ,  Minoru Tomiyori ,  Yoshie Iwakura ,  Hideshi Izumi

IPC分类号： G03B15/00 ,  G03B15/16 ,  G03G15/16 ,  B03G15/16

CPC分类号： G03G15/1635 ,  G03G2215/1609

摘要： A transfer device includes: a discharge type transfer element for transferring the developer to a sheet by discharging electric charge to a static latent image support through the sheet so as to form an image of an original thereon; and a transfer casing accommodating the transfer element, wherein the side on the sheet's entrance side is formed of an electrically insulating element, and is constructed such that the transfer element and transfer casing are arranged so as to be offset to the upstream side with respect to the rotational direction of the static latent image support, along the outer peripheral surface thereof and so that the upper end of the insulating element blocks up into the paper feed path, and the insulating element is adapted to be bent toward the sheet feed direction by virtue of an elastic member.

摘要翻译： 转印装置包括：排出型转印元件，用于通过将电荷通过片材向静电潜像载体排出，以将显影剂转印到片材上，以便在其上形成原稿的图像; 以及容纳所述转印元件的转印壳体，其中所述纸张入口侧的一侧由电绝缘元件形成，并且被构造成使得所述转印元件和转印壳体相对于 静电潜像的旋转方向沿着其外周面支撑，绝缘元件的上端嵌入供纸路径，绝缘元件适合于朝着纸张馈送方向弯曲 的弹性构件。

公开(公告)号：US20050207802A1

公开(公告)日：2005-09-22

申请号：US11084246

申请日：2005-03-21

申请人： Hideshi Izumi ,  Susumu Murakami ,  Minoru Tomiyori ,  Tomohiko Fujii ,  Yoshie Iwakura

发明人： Hideshi Izumi ,  Susumu Murakami ,  Minoru Tomiyori ,  Tomohiko Fujii ,  Yoshie Iwakura

IPC分类号： G03G15/00 ,  B65H5/00 ,  B65H5/06 ,  B65H5/38 ,  B65H29/00 ,  G03G15/14 ,  G03G15/16

CPC分类号： G03G15/167 ,  B65H29/00 ,  B65H2404/521 ,  B65H2404/62 ,  B65H2511/20 ,  B65H2513/51 ,  G03G15/657 ,  G03G2215/00413 ,  G03G2215/1614 ,  B65H2220/02 ,  B65H2220/11 ,  B65H2220/01

摘要： An image forming apparatus is constituted so as to be equipped with transfer apparatus(es) having transfer roller(s) electrostatically transferring development image(s) from photosensitive drum(s) to transfer medium/media, and so as to be provided with transfer medium guide means disposed downstream in transfer medium transport path(s) from location(s) at which photosensitive drum(s) oppose transfer roller(s), and such that transfer medium guide location(s) of transfer medium guide means is/are variable.

摘要翻译： 图像形成装置被构造成具有将感光鼓静电转印显影图像的转印辊传送到介质/介质的转印装置，并且设置有转印 介质引导装置，其设置在转印介质输送路径的下游，所述转印介质输送路径位于与感光鼓相对的转印辊的位置处，并且转印介质引导装置的转印介质引导位置是 变量。

公开(公告)号：US20050185992A1

公开(公告)日：2005-08-25

申请号：US11052980

申请日：2005-02-07

申请人： Yoshie Iwakura ,  Susumu Murakami ,  Kuniaki Nakano

发明人： Yoshie Iwakura ,  Susumu Murakami ,  Kuniaki Nakano

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

CPC分类号： G03G15/1685 ,  G03G15/0131 ,  G03G2215/0119

摘要： A transfer apparatus and an image forming apparatus capable of transferring an image satisfactorily using developing agent are disclosed. A transfer system includes photosensitive drums corresponding to the respective colors arranged along the outer peripheral surface of a transfer belt and intermediate transfer rollers arranged offset downstream side from the respective photosensitive drums for applying a transfer field to the respective photosensitive drums. The transfer belt is configured of a material such as polyimide or polycarbonate in which a surge current of not less than a specified value flows immediately after application of a transfer voltage.

摘要翻译： 公开了能够使用显影剂令人满意地转印图像的转印装置和图像形成装置。 转印系统包括对应于沿着转印带的外周表面布置的各种颜色的感光鼓和设置在相应感光鼓的下游侧的中间转印辊，用于将转印场施加到各个感光鼓。 转印带由诸如聚酰亚胺或聚碳酸酯的材料构成，其中不小于指定值的浪涌电流在施加转印电压之后立即流动。

公开(公告)号：US20050158085A1

公开(公告)日：2005-07-21

申请号：US11035395

申请日：2005-01-12

申请人： Susumu Murakami ,  Yoshie Iwakura ,  Takahiro Fukunaga ,  Masanori Yamada ,  Kuniaki Nakano

发明人： Susumu Murakami ,  Yoshie Iwakura ,  Takahiro Fukunaga ,  Masanori Yamada ,  Kuniaki Nakano

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

CPC分类号： G03G15/165 ,  G03G15/0136 ,  G03G2215/0119

摘要： A transfer device has primary transfer rollers supported so as to be upwardly and downwardly movable within a path of movement and opposed to respective of photosensitive drums across a portion of an intermediate transfer belt. There are also provided a slide member for full-color image formation and a slide member for monochromatic image formation, which are capable of reciprocation in a horizontal direction. The transfer device includes roller lifting means each L-shaped and each having one end supporting an associated one of the transfer rollers for rotation and another end engaging an associated one of the slide members, and first and second coaxial rotating cams. The transfer device is capable of switching between three paths of movement of the intermediate transfer belt selectively by the first and second rotating cams rotating together.

摘要翻译： 传送装置具有支撑的一次转印辊，以便在运动路径内向上和向下移动，并与相应的感光鼓穿过中间转印带的一部分。 还提供了用于全色图像形成的滑动构件和用于单色图像形成的滑动构件，其能够在水平方向上往复运动。 传送装置包括每个L形的滚子提升装置，每个滚子提升装置的一端支撑相关联的一个传送辊，用于旋转，另一端接合相关的一个滑动构件以及第一和第二同轴旋转凸轮。 传送装置能够通过一起旋转的第一和第二旋转凸轮选择性地切换中间转印带的三个运动路径。

公开(公告)号：US6078772A

公开(公告)日：2000-06-20

申请号：US938618

申请日：1997-09-26

申请人： Toshihiko Takaya ,  Fumio Shimazu ,  Seiichi Yoshida ,  Hideki Ohnishi ,  Tomohiro Oikawa ,  Yoshie Iwakura

发明人： Toshihiko Takaya ,  Fumio Shimazu ,  Seiichi Yoshida ,  Hideki Ohnishi ,  Tomohiro Oikawa ,  Yoshie Iwakura

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

CPC分类号： G03G15/1685 ,  G03G15/167 ,  G03G2215/1614

摘要： An image-forming apparatus is provided with: a photoconductor drum having a surface on which a toner image is formed, a transfer drum for transferring the toner image onto a copying material by allowing the copying material to contact the photoconductor drum, and a ground roller for electrostatically attracting the copying material onto the transfer drum prior to transferring the toner image onto the copying material. He transfer drum is constituted by a semi-conductive layer and a dielectric layer that are stacked on a conductive layer. [Supposing that] The nip width between the photoconductor drum and the transfer drum is L1, the rotation speed of the two drums is Vp, and the time constant, which is represented by a product of the resistance and the capacitance between the two drums, is .tau., the relationship represented by L1/Vp

摘要翻译： 图像形成装置具有：具有形成有调色剂图像的表面的感光鼓，用于通过允许复印材料接触感光鼓而将调色剂图像转印到复印材料上的转印鼓和接地辊 用于在将调色剂图像转印到复印材料之前将复制材料静电吸引到转印鼓上。 转印鼓由层叠在导电层上的半导电层和电介质层构成。 [假设]感光鼓和转印鼓之间的压区宽度为L1，两个鼓的转速为Vp，由两个鼓之间的电阻和电容的乘积表示的时间常数， 是tau，由L1 / Vp

公开(公告)号：US20070172263A1

公开(公告)日：2007-07-26

申请号：US11730467

申请日：2007-04-02

申请人： Susumu Murakami ,  Takahiro Fukunaga ,  Yoshie Iwakura ,  Kuniaki Nakano ,  Hideshi Izumi ,  Minoru Tomiyori

发明人： Susumu Murakami ,  Takahiro Fukunaga ,  Yoshie Iwakura ,  Kuniaki Nakano ,  Hideshi Izumi ,  Minoru Tomiyori

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/1685 ,  G03G2215/1614 ,  G03G2215/1623

摘要： A transfer device is provided including an intermediate transfer belt and transfer rollers associated with respective of photosensitive drums. Each of the transfer rollers and the intermediate transfer belt define therebetween a contact range of which center lies downstream of the center of a contact range (transfer nip region) defined between the associated photosensitive drum and the endless belt in the direction of movement of the endless belt. The transfer roller deforms the path of movement of the intermediate transfer belt by contacting the intermediate transfer belt, and the resulting deformation causes the intermediate transfer belt to contact the periphery of the photosensitive drum over a predetermined range.