公开(公告)号：US06215974B1

公开(公告)日：2001-04-10

申请号：US09307609

申请日：1999-05-10

申请人： Masahiko Katoh ,  Nobuyuki Yanagawa ,  Masanori Saito ,  Hideaki Kibune ,  Akira Imai

发明人： Masahiko Katoh ,  Nobuyuki Yanagawa ,  Masanori Saito ,  Hideaki Kibune ,  Akira Imai

IPC分类号： G03G1508

CPC分类号： G03G15/0886 ,  G03G15/0855 ,  G03G15/0865 ,  G03G15/0875

摘要： A developing apparatus for supplying toner includes a toner hopper configured to hold unused toner, a developing tub, and a toner hopper mounting part provided between the developing tub and the toner hopper. The toner hopper is adapted to be mounted to and removed from the toner hopper mounting part. The toner hopper mounting part includes a vibration apparatus for vibrating the toner hopper mounting part to loosen the unused toner stored in the toner hopper.

摘要翻译： 用于供应调色剂的显影装置包括配置为保持未使用的调色剂的调色剂料斗，显影槽和设置在显影槽和调色剂料斗之间的调色剂料斗安装部分。 调色剂料斗适于安装到调色剂料斗安装部件上并从其上拆下。 调色剂料斗安装部件包括用于振动调色剂料斗安装部分以松开存储在调色剂料斗中的未使用的调色剂的振动装置。

公开(公告)号：US6157797A

公开(公告)日：2000-12-05

申请号：US205366

申请日：1998-12-04

申请人： Masanori Saito ,  Nobuyuki Yanagawa ,  Yoshinobu Takeyama ,  Hideaki Kibune

发明人： Masanori Saito ,  Nobuyuki Yanagawa ,  Yoshinobu Takeyama ,  Hideaki Kibune

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

CPC分类号： G03G21/1821 ,  G03G21/1619 ,  G03G2215/0119 ,  G03G2221/1654 ,  G03G2221/183

摘要： An image forming apparatus includes a common mount member formed with a shaft support portion for supporting a shaft supporting an image carrier and a writing device support portion for supporting the writing device. The common mount portion is affixed to a stationary member. The image carrier and writing device are held in a preselected positional relation via the common mount member. Also, a positional relation between the image carrier and a developing device is set via the common mount member. The image carrier and members surrounding it can be accurately assembled and adjusted in position with ease.

摘要翻译： 图像形成装置包括：公共安装构件，形成有用于支撑支撑图像载体的轴的轴支撑部分和用于支撑书写装置的书写装置支撑部分。 公共安装部分固定在静止部件上。 图像载体和写入装置通过公共安装构件保持预选的位置关系。 此外，通过公共安装构件设置图像载体和显影装置之间的位置关系。 图像载体和围绕它的构件可以被准确地组装并且容易地调整到位。

公开(公告)号：US06292641B1

公开(公告)日：2001-09-18

申请号：US09122114

申请日：1998-07-24

申请人： Yoshinobu Takeyama ,  Masanori Saitoh ,  Hideaki Kibune ,  Nobuyuki Yanagawa

发明人： Yoshinobu Takeyama ,  Masanori Saitoh ,  Hideaki Kibune ,  Nobuyuki Yanagawa

IPC分类号： G03G1508

CPC分类号： G03G15/0126 ,  G03G15/0121 ,  G03G15/0184 ,  G03G2215/0106 ,  G03G2215/0119

摘要： An image forming apparatus is provided which can selectively drive a plurality of developing units by a simple structure accommodated in a small space. Two image stations are arranged along a direction of movement of an intermediate transfer belt. Each of the image stations is provided with a plurality of developing units arranged around a photosensitive drum. A developing unit driving system drives the plurality of developing units. A switching mechanism switches a transmission path of a power generated by the developing unit driving system so that the power is selectively transmitted to one of the developing units.

摘要翻译： 提供一种图像形成装置，其可以通过容纳在小空间中的简单结构来选择性地驱动多个显影单元。 沿着中间转印带的移动方向布置两个图像站。 每个图像站设置有围绕感光鼓布置的多个显影单元。 显影单元驱动系统驱动多个显影单元。 开关机构切换由显影单元驱动系统产生的电力的传输路径，使得电力被选择性地传送到显影单元之一。

公开(公告)号：US06842598B2

公开(公告)日：2005-01-11

申请号：US10609398

申请日：2003-07-01

申请人： Hideaki Kibune ,  Nobuyuki Yanagawa

发明人： Hideaki Kibune ,  Nobuyuki Yanagawa

IPC分类号： G03G15/01

CPC分类号： G03G15/0184 ,  G03G15/0121 ,  G03G2215/0106

摘要： An image forming apparatus of the present invention includes two developing units each including two developing rollers facing a particular photoconductive drum and rotatable about respective axis parallel to the axis of the drum. Each developing unit is supported by a respective image forming unit and angularly movable about an axis substantially parallel to the axis of the drum. When each developing unit is angularly moved by a preselected angle, a gap for development is established between one of the developing rollers and the associated drum.

摘要翻译： 本发明的图像形成装置包括两个显影单元，每个显影单元包括面向特定感光鼓的两个显影辊，并且能够围绕平行于滚筒的轴线的相应轴线旋转。 每个显影单元由相应的图像形成单元支撑并且可围绕基本上平行于滚筒的轴线的轴线成角度地移动。 当每个显影单元被角度地移动预选角度时，在显影辊和相关联的滚筒之间建立用于显影的间隙。

公开(公告)号：US06718151B2

公开(公告)日：2004-04-06

申请号：US10155088

申请日：2002-05-28

申请人： Hideaki Kibune ,  Nobuyuki Yanagawa

发明人： Hideaki Kibune ,  Nobuyuki Yanagawa

IPC分类号： G03G1501

CPC分类号： G03G15/0126 ,  G03G2215/0106

摘要： An image formation apparatus has photo conductor drums, and upstream developing rollers and downstream developing rollers that are brought into contact with respective photo conductor drums based on a changeover. The developing rollers develop latent images into visual images. A time required to change over a developing unit from one developing unit to the other developing unit is set as follows. A changeover time T2 from the downstream developing rollers to the upstream developing rollers respectively is set shorter than a changeover time T1 from the upstream developing rollers to the downstream developing rollers.

摘要翻译： 图像形成装置具有光导体鼓，以及基于切换与各个感光鼓接触的上游显影辊和下游显影辊。 显影辊将潜像显影成视觉图像。 将显影单元从一个显影单元切换到另一个显影单元所需的时间设置如下。 分别从下游显影辊到上游显影辊的切换时间T2比从上游显影辊到下游显影辊的切换时间T1短。

公开(公告)号：US06256461B1

公开(公告)日：2001-07-03

申请号：US09499392

申请日：2000-02-07

申请人： Yoshinobu Takeyama ,  Nobuyuki Yanagawa ,  Masanori Saito ,  Hideaki Kibune ,  Tomoyoshi Takeuchi ,  Masatoshi Tanaka ,  Norio Kawamoto

发明人： Yoshinobu Takeyama ,  Nobuyuki Yanagawa ,  Masanori Saito ,  Hideaki Kibune ,  Tomoyoshi Takeuchi ,  Masatoshi Tanaka ,  Norio Kawamoto

IPC分类号： G03G1516

CPC分类号： G03G15/1605 ,  G03G15/0121 ,  G03G15/0184 ,  G03G2215/0119

摘要： An image forming apparatus for transferring a toner image from an image carrier to a sheet-like recording medium by way of an intermediate transfer body is disclosed. A position on the intermediate transfer body where image formation should start is determined in accordance with the frequency of use of each of a plurality of regions defined on the intermediate transfer body. Specifically, one of the regions minimizing the sum of the frequencies of use of the regions is selected as the above position. The intermediate transfer body can therefore be evenly used over its entire circumference. While the intermediate transfer body is in a stand-by state, it is intermittently driven so as to be free from deformation.

摘要翻译： 公开了一种用于通过中间转印体将调色剂图像从图像载体转印到片状记录介质上的图像形成装置。 根据在中间转印体上限定的多个区域中的每一个的使用频率来确定图像形成应该开始的中间转印体上的位置。 具体地说，选择最小化区域的使用频率之和的区域之一作为上述位置。 因此，中间转印体可以在其整个圆周上均匀地使用。 当中间转印体处于待机状态时，它被间歇地驱动以便不变形。

公开(公告)号：US07502041B2

公开(公告)日：2009-03-10

申请号：US11168452

申请日：2005-06-29

申请人： Shingo Suzuki ,  Nobuyuki Yanagawa

发明人： Shingo Suzuki ,  Nobuyuki Yanagawa

IPC分类号： B41J2/385 ,  B41J2/435 ,  B41J2/47 ,  G03G15/01

CPC分类号： H04N1/4005 ,  G03G15/0173 ,  G03G15/0184 ,  G03G2215/0106 ,  G03G2215/0161

摘要： An image forming apparatus includes an intermediate transfer member, a sensor, and two image forming units. Each of the image forming units includes an image carrier, an image writer, two development rollers, and a switcher. The image writer writes an electrostatic latent image on the image carrier. Each of the development rollers selectively driven by the switcher visualizes the electrostatic latent image to form toner images in four colors. The toner images are transferred and superimposed onto the intermediate transfer member to form a color toner image. The color toner image is transferred onto a transfer sheet. One or more marks are formed on the intermediate transfer member. The sensor detects one of the marks. The image writer starts writing in synchronism with a sync clock signal of the image writer output immediately after the sensor detects the mark or output after a predetermined time period elapses after the sensor detects the mark.

摘要翻译： 图像形成装置包括中间转印部件，传感器和两个图像形成单元。 每个图像形成单元包括图像载体，图像写入器，两个显影辊和切换器。 图像写入器将静电潜像写入图像载体上。 由切换器选择性地驱动的每个显影辊可以使静电潜像可视化，以形成四种颜色的调色剂图像。 调色剂图像被转印并叠加到中间转印部件上以形成彩色调色剂图像。 彩色调色剂图像被转印到转印纸上。 在中间转印部件上形成一个或多个标记。 传感器检测到其中一个标记。 在传感器检测到标记之后经过预定时间段之后，图像写入器开始与传感器检测到标记或输出之后的图像写入器输出的同步时钟信号同步进行写入。

公开(公告)号：US07082274B2

公开(公告)日：2006-07-25

申请号：US10728896

申请日：2003-12-08

申请人： Masanori Saitoh ,  Nekka Matsuura ,  Nobuyuki Yanagawa

发明人： Masanori Saitoh ,  Nekka Matsuura ,  Nobuyuki Yanagawa

IPC分类号： G03G15/00 ,  G03G15/02

CPC分类号： G03G21/1647 ,  G03G2221/1651 ,  G03G2221/1654

摘要： An image forming apparatus of the present invention includes a plurality of components that form image forming means and should be mounted or dismounted in a preselected order. Following one of the components with respect to the preselected order cannot be dismounted from the apparatus until preceding one of the same has been dismounted. The components are mounted to the apparatus in the reverse order. The components unremovable from the apparatus and positioned above the removable components in a preselected dismounting direction are retractable.

摘要翻译： 本发明的图像形成装置包括形成图像形成装置的多个部件，并且应当按预选顺序安装或拆卸。 关于预选顺序的其中一个组件不能从设备中卸下，直到其中一个已经被卸下。 组件以相反的顺序安装到设备上。 从装置中不可移动并且以可选择的拆卸方向定位在可移除部件上方的部件是可缩回的。

公开(公告)号：US20050244187A1

公开(公告)日：2005-11-03

申请号：US11171227

申请日：2005-07-01

申请人： Masanori Saito ,  Nobuyuki Yanagawa

发明人： Masanori Saito ,  Nobuyuki Yanagawa

IPC分类号： G03G21/16 ,  G03G21/18

CPC分类号： G03G21/1814 ,  G03G21/0011 ,  G03G21/1647 ,  G03G21/1676 ,  G03G21/1817 ,  G03G2215/0106 ,  G03G2215/0119 ,  G03G2221/1603 ,  G03G2221/1606 ,  G03G2221/1618 ,  G03G2221/163 ,  G03G2221/1636 ,  G03G2221/1642 ,  G03G2221/1815 ,  G03G2221/1853

摘要： A two-station type color image forming apparatus of the present invention includes intermediate members configured to support only a developing device or the developing device and image forming means other than an image carrier. The intermediate members are selectively locked to or unlocked from the body of the image forming apparatus. Members constituting the image forming means each can be simply replaced alone in accordance with its life.

摘要翻译： 本发明的两台式彩色图像形成装置包括构造成只支持显影装置或显影装置的中间构件以及图像载体以外的图像形成装置。 中间构件被选择性地锁定到图像形成装置的主体或从图像形成装置的主体解锁。 构成图像形成装置的构件各自可以根据其寿命单独地简单地更换。

公开(公告)号：US20050030365A1

公开(公告)日：2005-02-10

申请号：US10870958

申请日：2004-06-21

申请人： Yoshinobu Takeyama ,  Nobuyuki Yanagawa

发明人： Yoshinobu Takeyama ,  Nobuyuki Yanagawa

IPC分类号： B41J2/44 ,  B41J2/385 ,  B41J2/447 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043 ,  G03G15/16 ,  G03G21/14 ,  H04N1/036 ,  H04N1/113 ,  H04N1/407 ,  H04N1/50

CPC分类号： H04N1/506

摘要： An image forming apparatus capable of decreasing the image unevenness of a superimposed image at the time of forming starting (head) lines of the images in respective colors with different beams in order to decrease a shift of a superimposed image. Let a position, where an image in a first color is formed with a beam A as a leading beam, be (a). Let a starting position of formation of an image in a second color be (b), and one dot (line) of shift arises in the superimposed image. In order to decrease the shift of the superimposed image, image formation is performed with selecting a beam B as a beam which writes a head of the image (c). When image formation is performed for color shift reduction with changing a leading beam for each color image, tonality correction is performed to each beam for subsequent images so as to decrease image unevenness due to the difference between shapes and exposure power of respective beams.