公开(公告)号：US06963715B2

公开(公告)日：2005-11-08

申请号：US10452760

申请日：2003-06-02

申请人： Kazunori Kanekura ,  Kazuhiro Seguchi ,  Yuji Nagai ,  Yuzo Kawano

发明人： Kazunori Kanekura ,  Kazuhiro Seguchi ,  Yuji Nagai ,  Yuzo Kawano

IPC分类号： G03G15/01 ,  G03G15/00

CPC分类号： G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0193

摘要： A color image forming apparatus comprises photoconductor drums on which toner images of each color are developed and formed; an endless intermediate transfer belt arranged in a contactable state with the photoconductor drums to run; first bias transfer rollers which perform first bias transfer in which the toner images of each color are transferred from the photoconductor drums onto the intermediate transfer belt; a second bias transfer roller which performs second transfer in which the toner images on the intermediate transfer belt are transferred onto paper; and a separation unit which, when a maximum print length of an image is below a length from a transfer point A to a transfer point B, separates the photoconductor drums and the intermediate transfer belt from each other after all first bias transfer of the toner images to be transferred on the last paper in a first print job has been completed, before second bias transfer onto the last paper is started and after second bias transfer onto paper immediately before the last paper has been completed.

摘要翻译： 彩色图像形成装置包括感光鼓，其上形成有各种颜色的调色剂图像; 环状中间转印带，其布置成与感光鼓相接触地运行; 执行第一偏置转印的第一偏压转印辊，其中每种颜色的调色剂图像从感光鼓转印到中间转印带上; 执行第二转印的第二偏转转印辊，其中中间转印带上的调色剂图像转印到纸上; 以及分离单元，当图像的最大打印长度低于从转印点A到转印点B的长度时，在所有调色剂图像的所有第一偏压转印之后，将感光鼓和中间转印带彼此分离 在第一次打印作业中被转印到最后一张纸上，在第二次偏移转印到最后一张纸上之前，在第二次偏移转印到纸张上，紧接在纸张完成之前。

公开(公告)号：US20050238397A1

公开(公告)日：2005-10-27

申请号：US11100418

申请日：2005-04-07

申请人： Yoshitaka Kitaoka ,  Noriyuki Tajima ,  Atsushi Sogami ,  Hiroshi Terada ,  Yuzo Kawano

发明人： Yoshitaka Kitaoka ,  Noriyuki Tajima ,  Atsushi Sogami ,  Hiroshi Terada ,  Yuzo Kawano

IPC分类号： G03G15/00 ,  B65H31/00 ,  H04N1/00

CPC分类号： G03G15/605 ,  G03G15/6573 ,  G03G2215/00126 ,  G03G2215/00189 ,  G03G2215/00421 ,  H04N1/00525 ,  H04N1/0053 ,  H04N1/00602 ,  H04N1/00612 ,  H04N1/0062 ,  H04N1/00631 ,  H04N1/00633 ,  H04N2201/0091 ,  H04N2201/0094

摘要： The present invention holds the source document feeding direction downstream edge of a printed sheet ejected above a source document feed tray by means of a top ejection platform functioning as a printed sheet holding section in an area apart from source document feed rollers functioning as a source document feeding section. As a result, a printed sheet ejected onto top ejection platform is not fed automatically by source document feed rollers. Therefore, a printed sheet that has undergone image formation can be ejected without obstruction above source document feed tray of an automatic document feeder, checking and removal of a printed sheet are facilitated, and convenience is improved.

摘要翻译： 本发明通过在作为源文档起作用的源文件进给辊之外的区域中通过用作打印纸张保持部的顶部喷射平台来保持在原稿进纸盘上方喷射的打印纸的源文档进给方向下游边缘 喂食部分。 结果，喷射到顶部喷射平台上的打印片材不被源文件进给辊自动进给。 因此，可以在自动送纸器的原稿进纸托盘上方无间隙地喷射经过图像形成的印刷品，便于打印纸的检查和取出，并且提高了便利性。

公开(公告)号：US06498915B2

公开(公告)日：2002-12-24

申请号：US09822497

申请日：2001-04-02

申请人： Naoki Yamaguchi ,  Masakazu Aoki ,  Yuzo Kawano

发明人： Naoki Yamaguchi ,  Masakazu Aoki ,  Yuzo Kawano

IPC分类号： G03G1500

CPC分类号： G03G21/1676 ,  G03G15/0194 ,  G03G21/1647 ,  G03G2221/1603 ,  G03G2221/1853

摘要： A tandem type color image forming apparatus has a plurality of image forming units. These units includes at least a plurality of spaced photosensitive drums, and a plurality of developing rollers for developing with toners electrostatic latent images formed on these photosensitive drums. The image forming units except the image forming unit for black color that may be highly frequently used are accommodated in the same first housing. The unit for black color is accommodated in another second housing. The first and second housings are made to be attachable to and detachable from the chassis of the apparatus main body independently of each other. Only an image forming unit with high frequency of inspection or maintenance can separately be detached, so that the work load for inspection or maintenance is reduced, and handling of the apparatus is easy.

摘要翻译： 串联型彩色图像形成装置具有多个图像形成单元。 这些单元包括至少多个间隔开的感光鼓，以及多个显影辊，用于利用调色剂显影形成在这些感光鼓上的静电潜像。 除了可以高度频繁使用的黑色图像形成单元之外的图像形成单元被容纳在同一个第一壳体中。 用于黑色的单元容纳在另一个第二壳体中。 第一壳体和第二壳体彼此独立地被附接到装置主体的底架上并可拆卸。 只有具有高检查或维护频率的图像形成单元可以分离地分离，从而减少了用于检查或维护的工作负荷，并且装置的处理容易。

公开(公告)号：US06341206B1

公开(公告)日：2002-01-22

申请号：US09590650

申请日：2000-06-08

申请人： Naoki Yamaguchi ,  Junichi Tanizaki ,  Takeshi Houman ,  Toshimi Hattori ,  Yoshihiro Mizoguchi ,  Yoshiaki Ijima ,  Yuzo Kawano

发明人： Naoki Yamaguchi ,  Junichi Tanizaki ,  Takeshi Houman ,  Toshimi Hattori ,  Yoshihiro Mizoguchi ,  Yoshiaki Ijima ,  Yuzo Kawano

IPC分类号： G03G1508

CPC分类号： G03G15/0817

摘要： An image developing apparatus has a photosensitive body, an image-developing roller, a toner feeding roller, a housing cassette, whereon the image-developing roller and the feeding roller are mounted, for storing the toner, a plate-like blade mounted on the housing cassette, a sheet member for preventing the toner from leaking, and toner sealing devices made of a resilient material for preventing the toner from leaking. The sheet member is displaced between a development area of the developing roller and a position of the pressed contact between the developing roller and the feeding roller. The sheet member maintains a uniformly contact along a longitudinal direction of the developing roller. The toner sealing devices are either mounted integrally to, or formed integrally with the blade as one unit, and provided at both ends of the blade. A space is provided between the toner sealing devices and the housing cassette. The structure of this invention realizes prevention of the toner from leaking in the image developing apparatus, since it effectively fills a space between the blade and the developing roller. Furthermore, the structure also improves productivity and reduces working processes, since it makes adhesion of the toner sealing devices unnecessary in manufacturing the image-developing apparatus.

摘要翻译： 图像显影装置具有感光体，图像显影辊，调色剂供给辊，安装有图像显影辊和进给辊的容纳盒，用于储存调色剂，安装在该显影辊上的板状刀片 容纳盒，用于防止调色剂泄漏的片状构件和由用于防止调色剂泄漏的弹性材料制成的调色剂密封装置。 片状构件在显影辊的显影区域和显影辊与进给辊之间的按压接触位置之间移动。 片材沿着显影辊的纵向方向保持均匀的接触。 调色剂密封装置或者一体地安装在叶片上或与叶片一体地形成为一个单元，并且设置在叶片的两端。 在调色剂密封装置和容纳盒之间设置有空间。 本发明的结构实现了防止调色剂在图像显影装置中泄漏，因为它有效地填充了叶片和显影辊之间的空间。 此外，由于在制造图像显影装置时不需要调色剂密封装置的粘附，因此该结构还提高了生产率并减少了工作过程。

公开(公告)号：US4914456A

公开(公告)日：1990-04-03

申请号：US260999

申请日：1988-10-21

申请人： Yuzo Kawano ,  Katsumi Ogawa ,  Tatsuya Tokoshima ,  Hiroshi Fujiwara

发明人： Yuzo Kawano ,  Katsumi Ogawa ,  Tatsuya Tokoshima ,  Hiroshi Fujiwara

IPC分类号： G03G15/04 ,  G03G21/08

CPC分类号： G03G21/08 ,  G03G15/04072 ,  G03G15/043

摘要： The present invention provides an electrostatographic apparatus having a control circuit (35) which controls an optical unit (5) to scan a photoconductor (1) during a predetermined time period with laser beam lit irrespective of recording signals after stoppage of power supply from a power source (34) to a charger (2) and a developer (7), thereby lowering potential on a surface of the photoconductor (1) after the stoppage of power supply.

摘要翻译： 本发明提供了一种静电摄影装置，其具有控制电路（35），控制电路（35）在预定时间段内控制光学单元（5），在预定的时间段内激光束照射，而不管记录信号如何，在电源从功率停止之后 源极（34）到充电器（2）和显影剂（7），从而在电源停止之后降低感光体（1）的表面上的电位。

公开(公告)号：US4740767A

公开(公告)日：1988-04-26

申请号：US934597

申请日：1986-11-21

申请人： Yuzo Kawano ,  Yosuke Ohata

发明人： Yuzo Kawano ,  Yosuke Ohata

IPC分类号： G03G15/01 ,  G03G15/08 ,  G03G21/16 ,  G03G15/00

CPC分类号： G03G15/0896 ,  G03G21/1647 ,  G03G21/1661 ,  G03G2221/1603 ,  G03G2221/1609 ,  G03G2221/163 ,  G03G2221/1651 ,  G03G2221/1654

摘要： A developing device includes a unit support member attached to an opening formed in a front panel of image forming apparatus, support for supporting the unit between the unit support member and a rear panel of the apparatus with the unit pivotable about an axis parallel to the rotation axis of the photoreceptor, and a guide mechanism for guiding a casing of the unit, whereby when the unit is set in the apparatus, a developing sleeve is put in a first state in which the sleeve is near the photoreceptor, and when the unit is inserted in and drawn out of the apparatus, the sleeve is put in a second state in which the sleeve is spaced apart from the photoreceptor. Also when the unit is set in the apparatus, the sleeve is changed from the first state to the second state and vice versa. Accordingly, the unit is replaced through the front panel of the apparatus with ease, and there is eliminated the necessity to provide an excessive space for inserting and drawing the unit in the apparatus, while preventing the developer from unnecessarily coming into contact with the photoreceptor in the non-developing stages, whereby monocolor developing is assuredly performed.

摘要翻译： 显影装置包括附接到形成在图像形成装置的前面板中的开口的单元支撑构件，用于在单元支撑构件和装置的后面板之间支撑单元的支撑件，该单元可围绕平行于旋转的轴线枢转 感光体的轴线和用于引导单元的壳体的引导机构，由此当将单元设置在设备中时，显影套筒处于其中套筒靠近感光体的第一状态，并且当单元是 插入并从设备中拉出，套筒处于第二状态，其中套筒与感光体间隔开。 此外，当将装置设置在装置中时，套筒从第一状态改变到第二状态，反之亦然。 因此，通过设备的前面板容易地更换单元，并且消除了为防止显影剂不必要地与感光体接触而提供用于在设备中插入和拉伸单元的过大空间的必要性 非显影阶段，从而可靠地进行单色显影。

公开(公告)号：US20050231772A1

公开(公告)日：2005-10-20

申请号：US11100421

申请日：2005-04-07

申请人： Yoshitaka Kitaoka ,  Noriyuki Tajima ,  Atsushi Sogami ,  Hiroshi Terada ,  Yuzo Kawano

发明人： Yoshitaka Kitaoka ,  Noriyuki Tajima ,  Atsushi Sogami ,  Hiroshi Terada ,  Yuzo Kawano

IPC分类号： G03G15/00 ,  H04N1/00 ,  H04N1/04

CPC分类号： H04N1/00588 ,  H04N1/0057 ,  H04N1/00591 ,  H04N1/0062 ,  H04N1/00631 ,  H04N2201/0091

摘要： An image forming apparatus that enables a source document ejected after image information reading is completed, and a printed sheet on which an image has been formed based on the image information, to be removed easily with one hand while maintaining their segregated state. In this apparatus, a source document feed tray holds a source document. A source document ejection tray is positioned below source document feed tray, and holds an ejected source document. A sheet ejection tray is positioned above source document feed tray, and holds a printed sheet ejected onto the uppermost part of the main body of the apparatus. Source document ejection rollers eject a source document into source document ejection tray so that the ejection direction downstream edge of source document ejected into source document ejection tray faces the ejection direction downstream-side position of source document ejection tray rather than the source document feeding direction upstream edge of source document feed tray.

摘要翻译： 一种图像形成装置，其能够在完成图像信息读取之后排出的原稿文档，以及基于图像信息形成图像的打印片材，一方面能够容易地移除，同时保持其分离状态。 在该装置中，源文件馈送盘保持源文档。 源文件排出托盘位于源文档进纸托盘的下方，并保存弹出的源文档。 纸张排出托盘位于原稿进纸托盘的上方，并且保持喷射到装置的主体的最上部的印刷纸。 源文件排出辊将源文件弹出到源文件排出托盘中，使得排出到源文件排出托盘的源文件的排出方向下游边缘面向源文件排出托盘的排出方向下游位置，而不是源文档进给方向上游 源文档进纸托盘的边缘。

公开(公告)号：US06654580B2

公开(公告)日：2003-11-25

申请号：US10020962

申请日：2001-12-19

申请人： Naoki Yamaguchi ,  Masaya Shimada ,  Yuzo Kawano ,  Kazuhiko Tajima

发明人： Naoki Yamaguchi ,  Masaya Shimada ,  Yuzo Kawano ,  Kazuhiko Tajima

IPC分类号： G03G1500

CPC分类号： G03G15/757 ,  F16D1/06 ,  F16D1/101 ,  F16D2001/103 ,  G03G2215/0119

摘要： An image forming apparatus includes an image carrier, a driving unit for transmitting a driving force to the image carrier via a driving spline, and a plurality of members to be driven for driving the driving force transmitted from the driving unit via the image carrier. A shaft is disposed coaxially with a rotation shaft of the image carrier in one end of the image carrier. An involute spline-shaped follower spline to which the driving force is transmitted from the driving unit via the driving spline is formed on an inner peripheral surface of the flange, and a driving force transmitter for transmitting the driving force to at least one of the member to be driven is formed on an outer peripheral surface of the flange.

摘要翻译： 图像形成装置包括图像载体，用于经由驱动花键将驱动力传递到图像载体的驱动单元和用于驱动从驱动单元经由图像载体传递的驱动力的多个驱动构件。 轴在图像载体的一端与图像载体的旋转轴同轴设置。 在凸缘的内周面上形成有从驱动单元经由驱动花键传递驱动力的渐开线花键状随动花键，以及驱动力传递器，用于将驱动力传递给构件 被驱动的部件形成在凸缘的外周面上。

公开(公告)号：US06463247B1

公开(公告)日：2002-10-08

申请号：US09591502

申请日：2000-06-12

申请人： Yuzo Kawano ,  Masaya Shimada ,  Kohei Suyama

发明人： Yuzo Kawano ,  Masaya Shimada ,  Kohei Suyama

IPC分类号： G03G1501

CPC分类号： G03G15/0131 ,  G03G2215/0119

摘要： An image formation apparatus comprises photosensitive drums for respectively forming toner images corresponding to specified colors of an original image, an intermediate transfer belt onto which the toner images are transferred from the photosensitive drums in superimposed relation to form a synthetic toner image, and transfer rollers each for pressing the intermediate transfer belt against the associated photosensitive drum. The photosensitive drum disposed more upstream in a direction of conveyance of the intermediate transfer belt has a lower speed. The intermediate transfer belt may be designed to move at a speed higher than those of the photosensitive drums. With this construction, a sag or dip of the intermediate transfer belt between any two adjacent photosensitive drums is eliminated, thereby preventing a color drift of the synthetic toner image.

摘要翻译： 图像形成装置包括用于分别形成对应于原始图像的特定颜色的调色剂图像的感光鼓，中间转印带，调色剂图像以重叠关系从感光鼓转印到其上以形成合成调色剂图像，并且每个转印辊 用于将中间转印带压靠在相关的感光鼓上。 设置在中间转印带的输送方向上游侧的感光鼓的速度较低。 中间转印带可以设计成以比感光鼓高的速度移动。 利用这种结构，消除了任何两个相邻的感光鼓之间的中间转印带的下垂或下垂，从而防止合成调色剂图像的颜色漂移。

公开(公告)号：US06285847B1

公开(公告)日：2001-09-04

申请号：US09487208

申请日：2000-01-19

申请人： Junichi Tanizaki ,  Yuzo Kawano ,  Yoshiaki Ijima ,  Kazuhiko Tajima

发明人： Junichi Tanizaki ,  Yuzo Kawano ,  Yoshiaki Ijima ,  Kazuhiko Tajima

IPC分类号： G03G1500

CPC分类号： G03G15/0194 ,  G03G2215/0119

摘要： A printer for forming a toner image to be transferred onto a work piece, includes a latent image roller with an outer peripheral image surface adapted to be electrified in such a manner that an electrostatic latent image is formed thereon, an image developing roller with an outer peripheral toner surface adapted to hold thereon toner to be supplied onto the outer peripheral image surface so that the electrostatic latent image is developed by the toner to form the toner image, an electrifier for electrifying the outer peripheral image surface, and a discharger for partially electrically discharging the electrified outer peripheral image surface to form the electrostatic latent image. A motor drives both the latent image roller and the image developing roller.

摘要翻译： 一种用于形成要转印到工件上的调色剂图像的打印机，包括：潜像辊，具有适于使其形成静电潜像的带电的外周图像表面，具有外部的图像显影辊 周边调色剂表面适于保持供应到外周图像表面上的调色剂，使得静电潜像由调色剂显影以形成调色剂图像，用于使外周图像表面带电的带电器和用于部分电气的放电器 放电带电的外周图像表面以形成静电潜像。 电动机驱动潜像辊和图像显影辊。