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：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：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.

公开(公告)号：US07236713B2

公开(公告)日：2007-06-26

申请号：US11192820

申请日：2005-07-29

申请人： Susumu Murakami ,  Yoshie Iwakura ,  Kuniaki Nakano

发明人： Susumu Murakami ,  Yoshie Iwakura ,  Kuniaki Nakano

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/5029 ,  G03G2215/00573 ,  G03G2215/00738 ,  G03G2215/00776 ,  G03G2215/1614

摘要： In an image forming apparatus a primary transfer is carried out such that toner images on a plurality of photoreceptors are transferred and laminated onto an intermediate transfer member, and a recording paper and the intermediate transfer member are sandwiched between a secondary transfer roller disposed so as to be in contact with the intermediate transfer member and a secondary transfer counter roller disposed opposite to the secondary transfer roller, to carry out a secondary transfer that the toner images on the intermediate transfer member are transferred onto the recording paper. At the time, an electric field is applied to the recording paper, and further the secondary transfer counter roller is switched by a switch between grounded state and floating state so that a potential difference between the intermediate transfer member and the secondary transfer roller can be adjusted.

摘要翻译： 在图像形成装置中，进行一次转印，使得多个感光体上的调色剂图像被转印并层压到中间转印部件上，并且记录纸和中间转印部件被夹在二次转印辊之间， 与中间转印部件和与二次转​​印辊相对设置的二次转印反转辊接触，以进行将中间转印部件上的调色剂图像转印到记录纸上的二次转印。 此时，电场被施加到记录纸上，并且二次转印对辊由接地状态和浮动状态之间的开关切换，从而可以调节中间转印部件和二次转印辊之间的电位差 。

公开(公告)号：US20060024073A1

公开(公告)日：2006-02-02

申请号：US11192820

申请日：2005-07-29

申请人： Susumu Murakami ,  Yoshie Iwakura ,  Kuniaki Nakano

发明人： Susumu Murakami ,  Yoshie Iwakura ,  Kuniaki Nakano

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

CPC分类号： G03G15/1605 ,  G03G15/5029 ,  G03G2215/00573 ,  G03G2215/00738 ,  G03G2215/00776 ,  G03G2215/1614

摘要： In an image forming apparatus a primary transfer is carried out such that toner images on a plurality of photoreceptors are transferred and laminated onto an intermediate transfer member, and a recording paper and the intermediate transfer member are sandwiched between a secondary transfer roller disposed so as to be in contact with the intermediate transfer member and a secondary transfer counter roller disposed opposite to the secondary transfer roller, to carry out a secondary transfer that the toner images on the intermediate transfer member are transferred onto the recording paper. At the time, an electric field is applied to the recording paper, and further the secondary transfer counter roller is switched by a switch between grounded state and floating state so that a potential difference between the intermediate transfer member and the secondary transfer roller can be adjusted.

摘要翻译： 在图像形成装置中，进行一次转印，使得多个感光体上的调色剂图像被转印并层压到中间转印部件上，并且记录纸和中间转印部件被夹在二次转印辊之间， 与中间转印部件和与二次转​​印辊相对设置的二次转印反转辊接触，以进行将中间转印部件上的调色剂图像转印到记录纸上的二次转印。 此时，电场被施加到记录纸上，并且二次转印对辊由接地状态和浮动状态之间的开关切换，从而可以调节中间转印部件和二次转印辊之间的电位差 。

公开(公告)号：US20050185991A1

公开(公告)日：2005-08-25

申请号：US11052981

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： G03G9/087 ,  G03G15/00 ,  G03G15/01 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G2215/0119 ,  G03G2215/0158

摘要： A transfer apparatus and an image forming apparatus are disclosed, in which a plurality of photosensitive drums corresponding to the respective colors are arranged along the outer peripheral surface of a transfer belt and a plurality of intermediate transfer rollers for applying a transfer field to the photosensitive drums are arranged offset downstream side from each of the photosensitive drums, respectively. In addition to that, the process, the intermediate transfer rollers are arranged in such positions that each of the nip width are increased progressively downstream side, respectively and each of the nip pressure are decreased progressively downstream side, respectively.

摘要翻译： 公开了一种转印装置和图像形成装置，其中对应于各种颜色的多个感光鼓沿着转印带的外周表面布置，并且多个中间转印辊用于向感光鼓施加转印场 分别设置成偏离每个感光鼓的下游侧。 除此之外，中间转印辊分别设置在各个辊隙宽度逐渐向下游侧增加的位置，并且辊隙压力分别逐渐下降。

公开(公告)号：US07418234B2

公开(公告)日：2008-08-26

申请号：US10550543

申请日：2004-04-09

申请人： Susumu Murakami ,  Minoru Tomiyori ,  Hideshi Izumi ,  Takahisa Narikiyo ,  Kuniaki Nakano ,  Yoshie Iwakura

发明人： Susumu Murakami ,  Minoru Tomiyori ,  Hideshi Izumi ,  Takahisa Narikiyo ,  Kuniaki Nakano ,  Yoshie Iwakura

IPC分类号： G03G15/00

CPC分类号： G03G15/234

摘要： A discharge unit is disposed downstream of a principal transport path of a compound machine, and a shifter function is provided in this discharge unit. By shifting the paper passage position relative to a photosensitive drum when printing the front side and the paper passage position relative to the photosensitive drum when printing the back side, the region in which the surface electric potential of the photosensitive drum increases is diminished, and the region in which photographic fog is generated is made smaller. Thus, when printing the second and subsequent sheets, even when a slight amount of displacement of the transport position of the recording paper occurs, it is possible to suppress that recording paper making contact in the photographic fog region on the photosensitive drum, and defective printing can be prevented.

摘要翻译： 放电单元设置在复合机械的主输送路径的下游，并且在该排出单元中设置有换档功能。 通过在打印背面时相对于感光鼓打印前侧和纸张通过位置时相对于感光鼓移动纸张通过位置，感光鼓的表面电位增加的区域减小， 产生摄影雾的区域变小。 因此，当打印第二张和后续的纸张时，即使发生记录纸的输送位置的轻微位移，也可以抑制在感光鼓上的摄影雾区域中的记录纸接触，并且打印不良 可以防止。

公开(公告)号：US07254359B2

公开(公告)日：2007-08-07

申请号：US11052981

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： G03G15/01

CPC分类号： G03G15/0131 ,  G03G2215/0119 ,  G03G2215/0158

摘要： A transfer apparatus and an image forming apparatus are disclosed, in which a plurality of photosensitive drums corresponding to the respective colors are arranged along the outer peripheral surface of a transfer belt and a plurality of intermediate transfer rollers for applying a transfer field to the photosensitive drums are arranged offset downstream side from each of the photosensitive drums, respectively. In addition to that, the process, the intermediate transfer rollers are arranged in such positions that each of the nip width are increased progressively downstream side, respectively and each of the nip pressure are decreased progressively downstream side, respectively.

摘要翻译： 公开了一种转印装置和图像形成装置，其中对应于各种颜色的多个感光鼓沿着转印带的外周表面布置，并且多个中间转印辊用于向感光鼓施加转印场 分别设置成偏离每个感光鼓的下游侧。 除此之外，中间转印辊分别设置在各个辊隙宽度逐渐向下游侧增加的位置，并且辊隙压力分别逐渐下降。

公开(公告)号：US07062209B2

公开(公告)日：2006-06-13

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

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。