公开(公告)号：US06719411B2

公开(公告)日：2004-04-13

申请号：US10284303

申请日：2002-10-31

申请人： Shinya Tomita ,  Toshitaka Ogawa ,  Satoru Tobita

发明人： Shinya Tomita ,  Toshitaka Ogawa ,  Satoru Tobita

IPC分类号： B41J2045

CPC分类号： B41J2/1612 ,  B41J2/14274 ,  B41J2/1618 ,  B41J2/1623 ,  B41J2202/11

摘要： An ink jet recording head that enables a reduction in the amount of piezoelectric plate consumed, so that costs can be lowered, without lowering efficiency of piezoelectric actuators, even if the piezoelectric actuators are only roughly fixed to the housing, and that also enables accurately and easily positioning the piezoelectric actuators with respect to a diaphragm that defines an ink channel. Assuming that mB is the mass (kg) of the base 3 to which the piezoelectric actuator 5 is fixed and Tfall is the rising edge time (s) of the drive signal that drives the piezoelectric actuator 5, the spring modulus determined from mB and Tfall is 2×mB/Tfall2≧5.0 e6 (N/m). Therefore, the displacement of the piezoelectric actuator can be efficiently transmitted to the ink chamber regardless of the spring modulus of the adhesive agent used to fix the base to the housing.

摘要翻译： 一种喷墨记录头，即使压电致动器仅大致固定在壳体上，能够减少压电板的消耗量，从而降低成本而不降低压电致动器的效率，并且还能够精确地和 相对于限定墨水通道的隔膜容易地定位压电致动器。 假设mB是压电致动器5固定的基座3的质量（kg），Tfall是驱动压电致动器5的驱动信号的上升沿时间（s），则从mB和Tfall确定的弹簧模量 是2xmB / Tfall <2 >> = 5.0e <6>（N / m）。 因此，无论用于将基座固定到壳体的粘合剂的弹簧模量如何，压电致动器的位移可以有效地传递到墨室。

公开(公告)号：US06761436B2

公开(公告)日：2004-07-13

申请号：US10183422

申请日：2002-06-28

申请人： Satoru Tobita ,  Shinya Tomita ,  Toshitaka Ogawa

发明人： Satoru Tobita ,  Shinya Tomita ,  Toshitaka Ogawa

IPC分类号： B41J2045

CPC分类号： B41J2/14

摘要： An inkjet head is formed with a nozzle, a pressure chamber, a plurality of restrictors, and a common ink chamber. Because the plurality of restrictors are formed in the inkjet head, it is possible to increase a fluid resistance of the restrictors without decreasing the Helmholtz resonant frequency. Accordingly, the inkjet head can be driven at a high frequency while preventing residual pressure wave affecting a subsequent ink ejection.

摘要翻译： 喷墨头形成有喷嘴，压力室，多个限制器和公共墨水室。 由于多个限制器形成在喷墨头中，所以可以在不降低亥姆霍兹共振频率的情况下增加限制器的流体阻力。 因此，可以以高频率驱动喷墨头，同时防止残留压力波影响随后的喷墨。

公开(公告)号：US06517189B2

公开(公告)日：2003-02-11

申请号：US09780350

申请日：2001-02-12

申请人： Toshitaka Ogawa ,  Satoru Tobita ,  Takashi Kagami

发明人： Toshitaka Ogawa ,  Satoru Tobita ,  Takashi Kagami

IPC分类号： B41J2165

CPC分类号： B41J2/16532 ,  B41J2/17596

摘要： A head is formed with a plurality of nozzles and a common ink chamber fluidly connected with the nozzles. A sub ink tank is provided above the head. Ink housed in a main ink tank is supplied into the sub ink tank through the common ink chamber when an image forming operation is not performed. At this time, air bubbles existing in the common ink chamber is brought into the sub ink tank along with the ink supplied from the main ink tank. The air bubbles collected into the sub ink tank in this manner are released into the ambient air through a valve provided to the sub ink tank.

摘要翻译： 头部形成有多个喷嘴和与喷嘴流体连接的公共墨水室。 在墨水头上方设置副墨水盒。 当不进行图像形成操作时，容纳在主墨水盒中的墨水通过公共墨水室供应到副墨水盒中。 此时，存在于普通墨水室中的气泡与从主墨水供应的墨一起被带入副墨槽。 以这种方式收集到副墨水罐中的气泡通过设置在副墨水罐的阀门被释放到环境空气中。

公开(公告)号：US06328418B1

公开(公告)日：2001-12-11

申请号：US09632621

申请日：2000-08-04

申请人： Takahiro Yamada ,  Hiroomi Kozawa ,  Takuji Torii ,  Kazunobu Hayashi ,  Toshitaka Ogawa ,  Satoru Tobita ,  Makoto Kurosawa ,  Kenji Yamada ,  Nobuhiro Noto ,  Osamu Machida ,  Katsunori Kawasumi ,  Hitoshi Kida ,  Mamoru Okano

发明人： Takahiro Yamada ,  Hiroomi Kozawa ,  Takuji Torii ,  Kazunobu Hayashi ,  Toshitaka Ogawa ,  Satoru Tobita ,  Makoto Kurosawa ,  Kenji Yamada ,  Nobuhiro Noto ,  Osamu Machida ,  Katsunori Kawasumi ,  Hitoshi Kida ,  Mamoru Okano

IPC分类号： B41J215

CPC分类号： B41J2/15 ,  B41J2202/20

摘要： A print head for ink jet printer having a reduced length in a main scanning direction and an elongated length in an auxiliary scanning direction perpendicular to the main scanning direction. A plurality of linear print head modules are arrayed in the auxiliary scanning direction, and each linear print head module extends in a slanting direction with respect to the main scanning direction by a predetermined angle. Further, each linear print head module has a width in a direction perpendicular to its extending direction. The slanting angle and the width determine scanning pitch extending in the auxiliary scanning direction and can reduces the length of the print head in the main scanning direction.

摘要翻译： 一种用于喷墨打印机的打印头，其在主扫描方向上具有减小的长度，并且在垂直于主扫描方向的辅助扫描方向上具有细长的长度。 多个线性打印头模块沿辅助扫描方向排列，并且每个线性打印头模块相对于主扫描方向以倾斜方向延伸预定角度。 此外，每个线性打印头模块在垂直于其延伸方向的方向上具有宽度。 倾斜角度和宽度决定了在辅助扫描方向上延伸的扫描间距，并且可以减小打印头在主扫描方向上的长度。

公开(公告)号：US06341835B1

公开(公告)日：2002-01-29

申请号：US09453811

申请日：1999-12-03

申请人： Toshitaka Ogawa ,  Toshio Hiki

发明人： Toshitaka Ogawa ,  Toshio Hiki

IPC分类号： B41J221

CPC分类号： B41J13/0045

摘要： A recording sheet is positioned at one of a plurality of starting positions based on a printing mode used in previous printing operations. When printing operations are started in a printing mode different from the previous printing mode, the recording sheet is transported either in a forward direction or in a reverse direction to a corresponding starting position. Then, actual printing is started. On the other hand, when printing operations are started in the same printing mode, actual printing is started immediately. In this way, printing speed is improved.

摘要翻译： 基于在以前的打印操作中使用的打印模式，记录纸被定位在多个起始位置中的一个位置。 当以与先前打印模式不同的打印模式开始打印操作时，记录纸张在向前方向或相反方向上传送到相应的开始位置。 然后，实际打印开始。 另一方面，当以相同的打印模式开始打印操作时，立即开始实际打印。 以这种方式，打印速度提高。

公开(公告)号：US5237377A

公开(公告)日：1993-08-17

申请号：US825580

申请日：1992-01-24

申请人： Toshimitsu Harada ,  Sadaki Maeda ,  Shinichi Nishino ,  Toshitaka Ogawa ,  Masayasu Anzai

发明人： Toshimitsu Harada ,  Sadaki Maeda ,  Shinichi Nishino ,  Toshitaka Ogawa ,  Masayasu Anzai

IPC分类号： G03G21/10 ,  G03G21/00

CPC分类号： G03G21/0035

摘要： A cleaning device for a dry electrophotographic device includes a cleaning brush brought into resilient contact with an object to be cleaned such as a photosensitive drum. A cleaning roll rotates while constantly being brought into contact with the cleaning brush and a cleaning blade is pressed against the cleaning roll to clean the cleaning roll. A rotation direction switching mechanism switches the rotation direction of the cleaning brush such that the rotation direction of the cleaning brush when cleaning the object, for example, during the formation of an image, is different from that when the brush is not cleaning the object.

摘要翻译： 用于干电子照相装置的清洁装置包括与诸如感光鼓的待清洁物体弹性接触的清洁刷。 清洁辊旋转，同时不断地与清洁刷接触，并且清洁刮板被压靠在清洁辊上以清洁清洁辊。 旋转方向切换机构切换清洁刷的旋转方向，使得例如在形成图像时清洁物体时清洁刷的旋转方向与刷子未清洁物体时的旋转方向不同。

公开(公告)号：US06561629B2

公开(公告)日：2003-05-13

申请号：US10095468

申请日：2002-03-13

申请人： Takahiro Yamada ,  Kunio Satou ,  Shinya Kobayashi ,  Hitoshi Kida ,  Kazuo Shimizu ,  Toshitaka Ogawa ,  Yoshikane Matsumoto ,  Lee Chahn

发明人： Takahiro Yamada ,  Kunio Satou ,  Shinya Kobayashi ,  Hitoshi Kida ,  Kazuo Shimizu ,  Toshitaka Ogawa ,  Yoshikane Matsumoto ,  Lee Chahn

IPC分类号： B41J206

CPC分类号： B41J2/06

摘要： A back electrode 30 is provided at a rear surface side of a recording sheet 60. An orifice electrode 11 is attached to an orifice plate 15 of a head module 10. The orifice electrode 11, the orifice plate 15, and ink filling in a nozzle element 2 are electrically connected to the ground. The back electrode 30 has the potential corresponding to that of a charging/deflecting signal. With this configuration, the orifice electrode 11, a pressure chamber 13, and the back electrode 30 together generates an inclined electric field 85 at a position a close to a center trajectory 90. A charged ink droplet is deflected greatly by the inclined electric field 85, at an early stage of the ink flight, and even greater deflection can be achieved as the flight proceeds.

摘要翻译： 背面电极30设置在记录片材60的后表面侧。孔电极11附着到头模块10的孔板15上。孔电极11，孔板15和填充在喷嘴中的墨 元件2电连接到地面。 背面电极30具有与充电/偏转信号相对应的电位。 利用这种构造，孔电极11，压力室13和背电极30一起在接近中心轨迹90的位置处产生倾斜电场85.带电墨滴被倾斜电场85大大偏转 在油墨飞行的早期阶段，随着飞行的进行，可以实现更大的偏转。

公开(公告)号：US5212530A

公开(公告)日：1993-05-18

申请号：US800088

申请日：1991-11-29

申请人： Toshimitsu Harada ,  Sadaki Maeda ,  Shinichi Nishino ,  Toshitaka Ogawa

发明人： Toshimitsu Harada ,  Sadaki Maeda ,  Shinichi Nishino ,  Toshitaka Ogawa

IPC分类号： G03G21/00 ,  G03G21/10

CPC分类号： G03G21/0035 ,  G03G21/10

摘要： A cleaning unit for a xerographic printing machine, or the like. A system for mechanically or electrostatically removing objects, such a toner or paper particles in a printing machine from a photoreceptor or other member to be cleaned, includes a cleaning brush rotating in contact with the member to be cleaned, a cleaning roll brought into contact with the cleaning brush to electrostatically or magnetically remove toner from the cleaning brush, and a cleaning blade supported at the base by a blade holder. The cleaning blade is pressed against the cleaning roll, to remove toner deposited on the surface of the cleaning roll. The cleaning blade is a resilient, thin metal plate.

摘要翻译： 用于静电复印机的清洁单元等。 一种用于机械地或静电地从感光体或其它待清洁部件移除打印机中的调色剂或纸颗粒的物体的系统，包括与要清洁的部件接触的清洁刷，与待清洁的部件接触的清洁辊， 清洁刷以静电或磁性方式从清洁刷中去除调色剂，以及通过刀片保持器支撑在基座处的清洁刀片。 清洁刮板被压靠在清洁辊上，以去除沉积在清洁辊表面上的调色剂。 清洁刮板是一种弹性薄的金属板。

公开(公告)号：US5764269A

公开(公告)日：1998-06-09

申请号：US416979

申请日：1995-04-05

申请人： Masami Takeshita ,  Toshitaka Ogawa ,  Masao Miyasaka ,  Kazuo Sugano

发明人： Masami Takeshita ,  Toshitaka Ogawa ,  Masao Miyasaka ,  Kazuo Sugano

IPC分类号： B41J2/385 ,  B41J2/47 ,  G02B7/00 ,  G03G15/00 ,  G03G15/04

CPC分类号： B41J2/47

摘要： An electrophotographic apparatus having an image carrying and an optical scanning unit, wherein an optical scanning unit support means is provided, the optical scanning unit support means serving to turn the optical scanning unit in a horizontal direction, so that an error in positioning the image carrying body with respect to the optical scanning unit can be corrected by the turning operation.

摘要翻译： 具有图像载体的电子照相设备和光学扫描单元，其中设置有光学扫描单元支撑装置，光学扫描单元支撑装置用于在水平方向上转动光学扫描单元，从而使得图像承载 可以通过转动操作来校正相对于光学扫描单元的主体。

公开(公告)号：US5630197A

公开(公告)日：1997-05-13

申请号：US642667

申请日：1996-05-03

申请人： Shinichi Nishino ,  Osamu Nishino ,  Toshitaka Ogawa

发明人： Shinichi Nishino ,  Osamu Nishino ,  Toshitaka Ogawa

IPC分类号： G03G15/00 ,  G03G21/18

CPC分类号： G03G21/1839 ,  G03G15/752 ,  G03G21/1875 ,  G03G2221/1606 ,  G03G2221/1838 ,  G03G2221/1853

摘要： An image forming apparatus includes a base machine; and a mounting device for interchangeably mounting any one of a plurality of different types of photoreceptor units to the base machine. The mounting device includes a print section module detachably mounted on the base machine, with the plural types of photoreceptor units being removably set to the print section module via an interface. The different types of photoreceptor units are different in a mounting structure for mounting a photoconductive layer on base.

摘要翻译： 图像形成装置包括基本机器; 以及用于将多个不同类型的感光单元中的任何一个可互换地安装到基座机器的安装装置。 安装装置包括可拆卸地安装在基本机器上的打印部分模块，多种类型的感光体单元经由界面可移除地设置到打印部分模块。 不同类型的感光体单元在用于在基底上安装光电导层的安装结构是不同的。