公开(公告)号：US06169870A

公开(公告)日：2001-01-02

申请号：US09515827

申请日：2000-02-29

申请人： Kenji Asakura ,  Masanori Yoshikawa ,  Noboru Katakabe

发明人： Kenji Asakura ,  Masanori Yoshikawa ,  Noboru Katakabe

IPC分类号： G03G1516

CPC分类号： G03G15/1615 ,  G03G15/0121 ,  G03G15/0163 ,  G03G15/0173 ,  G03G15/0194 ,  G03G15/161 ,  G03G2215/0116

摘要： The average friction factor between the contact surfaces of a drive roller and an intermediate transfer belt is set to not more than 0.45 and not less than 0.1, and before the primary transfer of the toner image of the last color is finished, a cleaning blade is separated from or comes into contact with the intermediate transfer belt with the drive roller as a backup member. The peripheral length of a photoconductor is greater by not more than 10% than the value obtained by dividing the length on a transfer member necessary for a predetermined image length by an integer n which is not less than 3 and not more than 9, and the ratio between the numbers of rotations of the transfer member and the photoconductor is 1:n.

摘要翻译： 驱动辊和中间转印带的接触表面之间的平均摩擦系数设定为不大于0.45且不小于0.1，并且在最终颜色的调色剂图像的一次转印完成之前，清洁刮板为 与作为支撑构件的驱动辊分离或与中间转印带接触。 光电导体的圆周长度比通过将预定图像长度所需的转印部件上的长度除以不小于3并且不大于9的整数n获得的值大于10％，并且 转印构件和感光体的转数之比为1：n。

公开(公告)号：US06366756B1

公开(公告)日：2002-04-02

申请号：US09661389

申请日：2000-09-13

申请人： Masahiro Aizawa ,  Noboru Katakabe ,  Masanori Yoshikawa ,  Kenji Asakura

发明人： Masahiro Aizawa ,  Noboru Katakabe ,  Masanori Yoshikawa ,  Kenji Asakura

IPC分类号： G03G1501

CPC分类号： G03G15/0194 ,  G03G15/0121 ,  G03G2215/0116

摘要： A color image forming apparatus is provided, having a plurality of image forming units including a photosensitive drum, a charging device and a developing device; a carriage for retaining and rotating the plurality of image forming units so as to move the image forming units between an image forming position and a waiting position; an exposing device for exposing a surface of the photosensitive drum of the image forming unit located at the image forming position; an intermediate transfer belt for successive transfer and superposition of toner images of various colors from the photosensitive drum of the image forming units located at the image forming position so as to form a color toner image; a device for driving the photosensitive drum and the intermediate transfer belt; a position detector for detecting a reference position of the intermediate transfer belt when the intermediate transfer belt is driven; and outputting a reference position detection signal; a secondary transfer roller for transferring the color toner image on the intermediate transfer belt onto recording paper; and a controller for controlling the operation of the above structural elements. The controller determines an operation start time of the charging device and the developing device using a rotation command signal to the driving device as a reference, and an operation start time of the exposing device, the intermediate transfer belt and the secondary transfer roller using the reference position detection signal as a reference.

摘要翻译： 提供一种彩色图像形成装置，具有包括感光鼓，充电装置和显影装置的多个图像形成单元; 用于保持和旋转所述多个图像形成单元以使图像形成单元在图像形成位置和等待位置之间移动的托架; 用于暴露位于图像形成位置处的图像形成单元的感光鼓的表面的曝光装置; 中间转印带，用于从位于图像形成位置处的图像形成单元的感光鼓连续转印和叠加各种颜色的调色剂图像，以形成彩色调色剂图像; 用于驱动感光鼓和中间转印带的装置; 位置检测器，用于当中间转印带被驱动时检测中间转印带的基准位置; 并输出参考位置检测信号; 用于将中间转印带上的彩色调色剂图像转印到记录纸上的二次转印辊; 以及用于控制上述结构元件的操作的控制器。 控制器使用向驱动装置的旋转指令信号作为参考，确定充电装置和显影装置的操作开始时间，以及使用参考的曝光装置，中间转印带和二次转印辊的操作开始时间 位置检测信号作为参考。

公开(公告)号：US06249663B1

公开(公告)日：2001-06-19

申请号：US09661390

申请日：2000-09-13

申请人： Masahiro Alzawa ,  Noboru Katakabe ,  Masanori Yoshikawa ,  Kenji Asakura

发明人： Masahiro Alzawa ,  Noboru Katakabe ,  Masanori Yoshikawa ,  Kenji Asakura

IPC分类号： G03G1500

CPC分类号： G03G15/0194 ,  G03G15/0121 ,  G03G2215/0116

摘要： A color image forming apparatus is provided, and includes a plurality of image forming units including a photosensitive drum, a charging device and a developing device; a carriage for retaining and rotating the plurality of image forming units so as to move the image forming units between an image forming position and a waiting position; an exposing device for exposing a surface of the photosensitive drum of the image forming unit located at the image forming position; an intermediate transfer belt for successive transfer and superposition of toner images of various colors from the photosensitive drum of the image forming units located at the image forming position so as to form a color toner image; a driving member for driving the photosensitive drum and the intermediate transfer belt; a position detector for detecting a reference position of the intermediate transfer belt when the intermediate transfer belt is driven, and outputting a reference position detection signal; a secondary transfer roller for transferring the color toner image on the intermediate transfer belt onto recording paper; and a controller for controlling the operation of the above structural elements. The controller determines an operation start time of the charging device and the developing device using a rotation command signal to the driving member as a reference, and an operation start time of the exposing device, the intermediate transfer belt and the secondary transfer roller using the reference position detection signal as a reference.

摘要翻译： 提供彩色图像形成装置，并且包括多个图像形成单元，包括感光鼓，充电装置和显影装置; 用于保持和旋转所述多个图像形成单元以使图像形成单元在图像形成位置和等待位置之间移动的托架; 用于暴露位于图像形成位置处的图像形成单元的感光鼓的表面的曝光装置; 中间转印带，用于从位于图像形成位置处的图像形成单元的感光鼓连续转印和叠加各种颜色的调色剂图像，以形成彩色调色剂图像; 用于驱动感光鼓和中间转印带的驱动构件; 位置检测器，用于当中间转印带被驱动时检测中间转印带的基准位置，并输出基准位置检测信号; 用于将中间转印带上的彩色调色剂图像转印到记录纸上的二次转印辊; 以及用于控制上述结构元件的操作的控制器。 控制器使用旋转命令信号将驱动部件的充电装置和显影装置的操作开始时间作为基准，以及使用参考的曝光装置，中间转印带和二次转印辊的操作开始时间 位置检测信号作为参考。

公开(公告)号：US5809380A

公开(公告)日：1998-09-15

申请号：US804552

申请日：1997-02-24

申请人： Noboru Katakabe ,  Masanori Yoshikawa ,  Kenji Asakura ,  Masahiro Aizawa

发明人： Noboru Katakabe ,  Masanori Yoshikawa ,  Kenji Asakura ,  Masahiro Aizawa

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G15/0121 ,  G03G2215/0116

摘要： A color image forming apparatus having a simple mechanism for switching plural photosensitive drum units and still maintaining a high resolution image is provided. In the apparatus, each image forming unit including each color photosensitive drum is disposed around a rotating shaft of a carriage. Each photosensitive drum has a coupling plate at one end, which is engaged by a drive side coupling plate for transmitting a drive force to the photosensitive drum, when the image forming units is moved to the image forming position. An output shaft that rotates the drive side coupling plate supports an edge of a photosensitive drum shaft in alignment. A toner image formed on the photosensitive drum is transferred onto a transfer belt, which rotates at a constant speed, one by one to form a multicolor image on the transfer belt. The multicolor image on the transfer belt is transferred onto a paper sheet. A transmission between a motor and the carriage include a worm gear.

摘要翻译： 提供一种具有用于切换多个感光鼓单元并且仍保持高分辨率图像的简单机构的彩色图像形成装置。 在该装置中，包括每个彩色感光鼓的每个图像形成单元设置在托架的旋转轴周围。 每个感光鼓在一端具有耦合板，当图像形成单元移动到图像形成位置时，该耦合板由驱动侧联接板接合，用于将驱动力传递到感光鼓。 旋转驱动侧联接板的输出轴支撑感光鼓轴的边缘对齐。 形成在感光鼓上的调色剂图像被转印到转印带上，该转印带以恒定的速度逐个旋转，以在转印带上形成多色图像。 转印带上的多色图像转印到纸张上。 马达和托架之间的传动装置包括蜗轮。

公开(公告)号：US06185396B2

公开(公告)日：2001-02-06

申请号：US08960871

申请日：1997-10-31

申请人： Masahiro Aizawa ,  Noboru Katakabe ,  Masanori Yoshikawa ,  Kenji Asakura

发明人： Masahiro Aizawa ,  Noboru Katakabe ,  Masanori Yoshikawa ,  Kenji Asakura

IPC分类号： G03G1501

CPC分类号： G03G15/0194 ,  G03G15/0121 ,  G03G2215/0116

摘要： A color image forming apparatus is provided, and includes a plurality of image forming units including a photosensitive drum, a charging device and a developing device; a carriage for retaining and rotating the plurality of image forming units so as to move the image forming units between an image forming position and a waiting position; an exposing device for exposing a surface of the photosensitive drum of the image forming unit located at the image forming position; an intermediate transfer belt for successive transfer and superposition of toner images of various colors from the photosensitive drum of the image forming units located at the image forming position so as to form a color toner image; a drive member for driving the photosensitive drum and the intermediate transfer belt; a position detector for detecting a reference position of the intermediate transfer belt when the intermediate transfer belt is driven, and outputting a reference position detection signal; a secondary transfer roller for transferring the color toner image on the intermediate transfer belt onto recording paper; and a controller for controlling the operation of the above structural elements. The controller determines an operation start time of the charging device and the developing device using a rotation command signal to the driving means as a reference, and an operation start time of the exposing device, the intermediate transfer belt and the secondary transfer roller using the reference position detection signal as a reference.

摘要翻译： 提供彩色图像形成装置，并且包括多个图像形成单元，包括感光鼓，充电装置和显影装置; 用于保持和旋转所述多个图像形成单元以使图像形成单元在图像形成位置和等待位置之间移动的托架; 用于暴露位于图像形成位置处的图像形成单元的感光鼓的表面的曝光装置; 中间转印带，用于从位于图像形成位置处的图像形成单元的感光鼓连续转印和叠加各种颜色的调色剂图像，以形成彩色调色剂图像; 用于驱动感光鼓和中间转印带的驱动构件; 位置检测器，用于当中间转印带被驱动时检测中间转印带的基准位置，并输出基准位置检测信号; 用于将中间转印带上的彩色调色剂图像转印到记录纸上的二次转印辊; 以及用于控制上述结构元件的操作的控制器。 控制器使用向驱动装置的转动指令信号作为基准来确定充电装置和显影装置的操作开始时间，以及使用参考的曝光装置，中间转印带和二次转印辊的操作开始时间 位置检测信号作为参考。

公开(公告)号：US06122474A

公开(公告)日：2000-09-19

申请号：US45176

申请日：1998-03-20

申请人： Kenji Asakura ,  Masanori Yoshikawa ,  Noboru Katakabe

发明人： Kenji Asakura ,  Masanori Yoshikawa ,  Noboru Katakabe

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/1615 ,  G03G15/0121 ,  G03G15/0194 ,  G03G15/161 ,  G03G15/0163 ,  G03G15/0173 ,  G03G2215/0116

摘要： The average friction factor between the contact surfaces of a drive roller and an intermediate transfer belt is set to not more than 0.45 and not less than 0.1, and before the primary transfer of the toner image of the last color is finished, a cleaning blade is separated from or comes into contact with the intermediate transfer belt with the drive roller as a backup member. The peripheral length of a photoconductor is greater by not more than 10% than the value obtained by dividing the length on a transfer member necessary for a predetermined image length by an integer n which is not less than 3 and not more than 9, and the ratio between the numbers of rotations of the transfer member and the photoconductor is 1:n.

摘要翻译： 驱动辊和中间转印带的接触表面之间的平均摩擦系数设定为不大于0.45且不小于0.1，并且在最终颜色的调色剂图像的一次转印完成之前，清洁刮板为 与作为支撑构件的驱动辊分离或与中间转印带接触。 光电导体的圆周长度比通过将预定图像长度所需的转印部件上的长度除以不小于3且不大于9的整数n获得的值大于10％，并且 转印构件和感光体的转数之比为1：n。

公开(公告)号：US6035158A

公开(公告)日：2000-03-07

申请号：US198938

申请日：1998-11-24

申请人： Kenji Asakura ,  Yasutaka Tamai ,  Keizou Takeuchi ,  Masanori Yoshikawa ,  Noboru Katakabe ,  Hiromichi Miyoshi

发明人： Kenji Asakura ,  Yasutaka Tamai ,  Keizou Takeuchi ,  Masanori Yoshikawa ,  Noboru Katakabe ,  Hiromichi Miyoshi

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/161 ,  G03G2215/0109 ,  G03G2215/1661

摘要： A bet unit provides an intermediate transfer belt where primary transfer is performed at a part stretching between a drive roller and a tension roller, and a cleaner roller separated from and brought into contact with a part of the intermediate transfer belt stretching between an opposed roller and the drive roller in the downstream side of the opposed roller. The belt unit is detachably attachable to the body with the opposed roller on the operator's side. The tangential line of the opposed roller is substantially vertical at a secondary transfer position. The cleaner roller is disposed in a range enclosed by the intermediate transfer belt, the tangential line of the drive roller parallel to the common tangential line of the peripheries of the tension roller and the opposed roller, and the vertical tangential line of the secondary transfer side of the opposed roller.

摘要翻译： 下注单元提供中间转印带，其中在驱动辊和张力辊之间延伸的部分进行一次转印，以及清洁辊，其与在相对的辊和相对辊之间拉伸的中间转印带的一部分分离并与之接触 驱动辊位于相对的辊的下游侧。 皮带单元可拆卸地安装在主体上，使用操作者侧的相对的滚轮。 相对辊的切线在二次转印位置基本垂直。 清洁辊设置在由中间转印带包围的范围内，驱动辊的切线平行于张紧辊和相对辊的周边的共同切线，并且二次转印侧的垂直切线 的相对辊。

公开(公告)号：US5956552A

公开(公告)日：1999-09-21

申请号：US043549

申请日：1998-03-19

申请人： Noboru Katakabe ,  Hiroshi Terada ,  Hajime Yamamoto ,  Masanori Yoshikawa ,  Kenji Asakura

发明人： Noboru Katakabe ,  Hiroshi Terada ,  Hajime Yamamoto ,  Masanori Yoshikawa ,  Kenji Asakura

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G15/0121 ,  G03G2215/0116

摘要： In a color image forming apparatus, a plurality of image forming units 3Y, 3M, 3C and 3K, which correspond to a plurality of colors and with each unit including a developing device and a photosensitive drum, are retained so as to define a cylinder. The color image forming apparatus includes: a conveying apparatus for conveying the plurality of image forming units around the main axis of the cylinder between an image forming position and a waiting position by simultaneously rotating all image forming units; an exposing device 6 for exposure of the photosensitive drum of the image forming unit that is in the image forming position 10; a transfer apparatus 5, which contacts a transfer belt 50 with the photosensitive drum 30 of the image forming unit that is in the image forming position, and when the image forming unit that is in the image forming position is switched, successively transcribes the toner images of all colors formed on the photosensitive drums onto the transfer belt, superimposes the toner images of all colors and forms a colored toner image on the transfer belt; and a transfer belt driving apparatus for driving the transfer belt at a constant speed. When a second color image is formed after a first color image, the first toner image color of the second color image is formed on the transfer belt by using the image forming unit of the last color added to the first color image. The exposing device includes a light source accommodated by the inner portion of the cylinder defined by the image forming units.

摘要翻译： PCT No.PCT / JP97 / 03349 Sec。 371日期：1998年3月19日 102（e）1998年3月19日PCT PCT 1997年9月22日PCT公布。 第WO98 / 13732号公报 日期：1998年4月2日在彩色图像形成装置中，与多种颜色对应的多个图像形成单元3Y，3M，3C和3K以及包括显影装置和感光鼓的每个单元被保持为 定义一个圆柱体。 彩色图像形成装置包括：传送装置，用于通过同时旋转所有图像形成单元在图像形成位置和等待位置之间传送多个图像形成单元围绕圆筒的主轴线; 用于曝光图像形成单元的图像形成位置10中的感光鼓的曝光装置6; 与转印带50接触的转印装置5与图像形成单元的感光鼓30处于图像形成位置，并且当图像形成单元处于图像形成位置时，转印装置5依次转印调色剂图像 将形成在感光鼓上的所有颜色的所有颜色转印到转印带上，将所有颜色的调色剂图像叠加并在转印带上形成着色调色剂图像; 以及用于以恒定速度驱动转印带的转印带驱动装置。 当在第一彩色图像之后形成第二彩色图像时，通过使用添加到第一彩色图像的最后一个颜色的图像形成单元，在转印带上形成第二彩色图像的第一调色剂图像颜色。 曝光装置包括由图像形成单元限定的圆筒的内部容纳的光源。

公开(公告)号：US06546220B1

公开(公告)日：2003-04-08

申请号：US09378811

申请日：1999-08-23

申请人： Kenji Asakura ,  Masanori Yoshikawa ,  Noboru Katakabe

发明人： Kenji Asakura ,  Masanori Yoshikawa ,  Noboru Katakabe

IPC分类号： G03G1501

CPC分类号： G03G21/1671 ,  G03G15/0121 ,  G03G15/0194 ,  G03G21/1647 ,  G03G2215/0116 ,  G03G2215/0177 ,  G03G2221/1657

摘要： An image forming apparatus includes a plurality of image forming units having a developer, a charger, and a photosensitive member; a carriage for retaining the plurality of image forming units so that they can be removed and installed, and which rotates the plurality of image forming units between an image forming position and other positions; a laser exposing device for exposing the photosensitive member at an image forming position; an intermediate transfer belt for accepting a toner image formed on the photosensitive member at the image forming position, and forming a color image; an output shaft for coupling with at least one axis end portion of the photosensitive member in the image forming position in the axial direction of the photosensitive member, and positioning the photosensitive member at a proper position; a rotation stop portion for positioning the rotation orientation of the image forming units with respect to the axis of the photosensitive members; and a retransfer roller for transferring the color image formed on the intermediate transfer belt at a retransfer position onto recording paper. Thus, it is possible to retain the image forming unit precisely and reliably at a proper position.

摘要翻译： 图像形成装置包括具有显影剂，充电器和感光构件的多个图像形成单元; 用于保持多个图像形成单元以使得它们能够被移除和安装并且使多个图像形成单元在图像形成位置和其他位置之间旋转的托架; 激光曝光装置，用于在成像位置曝光感光构件; 中间转印带，用于接受在图像形成位置处形成在感光构件上的调色剂图像，并形成彩色图像; 输出轴，用于在感光构件的轴向方向上的图像形成位置中与感光构件的至少一个轴端部分耦合，并将感光构件定位在适当的位置; 用于将图像形成单元的旋转取向相对于感光构件的轴线定位的旋转停止部分; 以及转印辊，用于将形成在中间转印带上的彩色图像在再转印位置转印到记录纸上。 因此，可以将图像形成单元精确可靠地保持在适当的位置。

公开(公告)号：US06477344B1

公开(公告)日：2002-11-05

申请号：US09576282

申请日：2000-05-23

申请人： Kenji Asakura ,  Yasutaka Tamai ,  Masanori Yoshikawa ,  Noboru Katakabe ,  Masawo Otsuka

发明人： Kenji Asakura ,  Yasutaka Tamai ,  Masanori Yoshikawa ,  Noboru Katakabe ,  Masawo Otsuka

IPC分类号： G03G1516

CPC分类号： G03G15/161 ,  G03G21/0058 ,  G03G21/007 ,  G03G2215/0116 ,  G03G2215/1661 ,  G03G2221/0005

摘要： An image forming apparatus capable of removing a toner remaining on the transfer belt (toner supporting member) with a simple configuration. The image forming apparatus includes an intermediate transfer belt that moves with charged toner supported on the surface thereof; a cleaner roller that is rotated while being pressed onto the intermediate transfer belt; a power source for supplying potential for electrically attracting the toner to the cleaner roller from the intermediate transfer belt; and a pretreatment roller that is pressed onto the intermediate transfer belt upstream from the cleaner roller in the moving direction of the intermediate transfer belt.

摘要翻译： 一种图像形成装置，能够以简单的结构去除转印带上的调色剂（调色剂支撑部件）。 图像形成装置包括：中间转印带，其与被支撑在其表面上的带电调色剂一起移动; 一个清洁辊，在被压到中间转印带上的同时转动; 电源，用于提供从中间转印带电吸引调色剂到清洁辊的电位; 以及预处理辊，其在中间转印带的移动方向上被从清洁辊的上游按压到中间转印带上。