公开(公告)号：US06330403B1

公开(公告)日：2001-12-11

申请号：US09637018

申请日：2000-08-14

申请人： Akio Tsujita ,  Takashi Rokutanda ,  Takao Umeda

发明人： Akio Tsujita ,  Takashi Rokutanda ,  Takao Umeda

IPC分类号： G03G1516

CPC分类号： G03G15/164 ,  G03G2215/00021 ,  G03G2215/1614

摘要： An image forming apparatus has an image retaining body which is supported so as to be able to move endlessly, a transfer means which is installed at a specific distance away from the surface of the image retaining body or in contact with the surface of the image retaining body, and a paper guide which is installed upstream and downstream, of or at least upstream or downstream the transfer means along the moving direction of the image retaining body for guiding a sheet of paper between the image retaining body and the transfer means and for pressing the paper onto the surface of the image retaining body. The image forming apparatus is equipped with an adjusting means for adjusting the distance between the paper guide means and the transfer means along the moving direction of the image retaining body, thereby varying the length of the paper wound onto the image retaining body.

摘要翻译： 图像形成装置具有被保持为能够无止境地移动的图像保持体，传送装置，其安装在远离图像保持体的表面的特定距离处或与图像保持的表面接触 主体和导纸器，其沿着图像保持体的移动方向安装在传送装置的上游和下游或至少上游或下游，用于在图像保持体和传送装置之间引导纸张并用于按压 纸张到图像保持体的表面上。 图像形成装置配备有调节装置，用于沿着图像保持体的移动方向调节纸张引导装置和传送装置之间的距离，从而改变卷绕在图像保持体上的纸张的长度。

公开(公告)号：US6144836A

公开(公告)日：2000-11-07

申请号：US925763

申请日：1997-09-09

申请人： Takao Umeda ,  Akio Tsujita ,  Takashi Rokutanda ,  Yukio Otome

发明人： Takao Umeda ,  Akio Tsujita ,  Takashi Rokutanda ,  Yukio Otome

IPC分类号： B65H5/06 ,  G03G15/00 ,  G03G21/00

CPC分类号： G03G15/657 ,  G03G2215/00616

摘要： A transport roll 1 consists of a metal roll 3 of 40 mm in diameter covered with a conductive PFA tube 2 of 10.sup.10 .OMEGA.cm in volume resistivity and 200 .mu.m in thickness. A DC voltage source 4 is connected to the metal roll. A sheet of paper 5 bearing toner images 6 and 7 on both sides thereof receives a drive force from a paper drive roll, and turns with the movement of the paper. The DC voltage source produces voltage VB1 of the same polarity as the charging polarity (positive) of the toner image 6 being in contact with the transport roll. The voltage VB1 is optimumly controlled so as to prevent the transport roll from being soiled with toner.

摘要翻译： 输送辊1由直径40mm的金属辊3包覆，体积电阻率为1010ΩEGcm的导电性PFA管2，厚度为200μm。 直流电压源4与金属辊连接。 在其两侧承载有调色剂图像6和7的纸张5从纸驱动辊接收驱动力，并随纸的移动而转动。 DC电压源产生与输送辊接触的调色剂图像6的充电极性（正）极性相同的电压VB1。 电压VB1被最佳地控制，以防止输送辊被调色剂污染。

公开(公告)号：US6070032A

公开(公告)日：2000-05-30

申请号：US323842

申请日：1999-06-02

申请人： Takashi Rokutanda ,  Takao Umeda ,  Yukio Otome

发明人： Takashi Rokutanda ,  Takao Umeda ,  Yukio Otome

IPC分类号： G03G15/00 ,  G03G21/08 ,  G03G15/04 ,  G03G21/00

CPC分类号： G03G21/08 ,  Y10S430/102

摘要： In an electrostatic printing apparatus, the residual image phenomenon conspicuously observed at low density printing can be eliminated while photo-deterioration of the photosensitive body is being suppressed to a minimum in a high speed printing process. A charging unit, a writing light source, a developing unit, a transfer unit, a first erase lamp, an AC discharging unit and a second erase lamp are arranged around a photosensitive drum. Therein, the light intensity of the erase lamp is strengthened when the density of a printed image is light and is weakened when the density of the printed image is dark. That is, by changing the light intensity of the erase lamps corresponding to a developing bias, the residual image phenomenon can be eliminated while suppressing deterioration of the photosensitive drum to a minimum.

摘要翻译： 在静电印刷装置中，可以消除在低密度印刷时明显观察到的残留图像现象，同时在高速印刷工艺中将感光体的光劣化抑制到最小。 在感光鼓周围布置充电单元，书写光源，显影单元，转印单元，第一擦除灯，AC放电单元和第二擦除灯。 其中，当打印图像的浓度较浅时，擦除灯的光强度增强，并且当打印图像的浓度变暗时，擦除灯的光强度变弱。 也就是说，通过改变对应于显影偏压的擦除灯的光强度，可以消除残留图像现象，同时将感光鼓的劣化抑制到最小。

公开(公告)号：US6101347A

公开(公告)日：2000-08-08

申请号：US324724

申请日：1999-06-03

申请人： Takashi Rokutanda ,  Takao Umeda ,  Yukio Otome ,  Nobuyuki Mori

发明人： Takashi Rokutanda ,  Takao Umeda ,  Yukio Otome ,  Nobuyuki Mori

IPC分类号： B41J29/17 ,  B65H5/00 ,  G03G15/00 ,  G03G15/23 ,  G03G21/00

CPC分类号： G03G15/231 ,  G03G2215/00413 ,  G03G2215/00455 ,  G03G2215/00708

摘要： There are provided a paper separating mechanism for bringing paper into a state of non-contact with a paper carrying roll; a motor for independently driving the paper carrying roll; and a switch for changing-over the paper carrying roll driving mode between a following mode and an independent driving mode so that the driving mode is changed over to the following mode and independent driving mode at the time of printing and at the time of non-printing, respectively.

摘要翻译： 提供了一种纸分离机构，用于使纸张与携带卷纸不接触的状态; 用于独立地驱动纸张传送辊的电机; 以及用于在随动模式和独立驱动模式之间切换送纸辊驱动模式的开关，使得驱动模式在打印时切换到随后的模式和独立的驱动模式， 印刷。

公开(公告)号：US07745307B2

公开(公告)日：2010-06-29

申请号：US12168332

申请日：2008-07-07

申请人： Takao Umeda ,  Osamu Machida ,  Jun Nagata

发明人： Takao Umeda ,  Osamu Machida ,  Jun Nagata

IPC分类号： H01L21/30

CPC分类号： B41J2/14274 ,  B41J2/1612 ,  B41J2/1623 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2/1646 ,  B41J2002/14403 ,  B41J2202/20 ,  B41J2202/21 ,  Y10T29/42

摘要： In a method of manufacturing an inkjet head, a silicon dioxide (SiO2) layer is produced on the surface of first silicon member formed from single-crystal silicon. Next, a glass layer formed of borosilicate glass or the like is sputtered onto the surface of the silicon dioxide (SiO2) layer. A silicon oxide (SiOx, x

公开(公告)号：US06345163B1

公开(公告)日：2002-02-05

申请号：US09669673

申请日：2000-09-26

申请人： Katsuhiko Suzuki ,  Takao Umeda ,  Hisao Okada

发明人： Katsuhiko Suzuki ,  Takao Umeda ,  Hisao Okada

IPC分类号： G03G1500

CPC分类号： G03G15/0822 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/0856 ,  G03G15/0877

摘要： A developing device for use in an image forming apparatus has control means operatively responsive to receipt of an output signal of a first toner density detector means provided in a development unit for driving developing powder delivery means provided in a preliminary mixture/stirring unit to supply developing powder from a stirring chamber toward the development unit, while controlling regulator means so that introduction of the developing powder to the stirring chamber is inhibited at least within a developing powder refilling time period.

摘要翻译： 用于图像形成装置的显影装置具有控制装置，其操作响应于接收设置在显影单元中的第一调色剂浓度检测器装置的输出信号，用于驱动设置在预混合/搅拌单元中的显影粉输送装置，以提供显影 粉末从搅拌室朝向显影单元，同时控制调节装置，使得至少在显影粉末再填充时间段内至少抑制显影粉末向搅拌室的引入。

公开(公告)号：US06032015A

公开(公告)日：2000-02-29

申请号：US9425

申请日：1998-01-20

申请人： Takao Umeda ,  Ryoji Kojima ,  Masayasu Anzai ,  Michio Yokosuka ,  Katsuhiko Suzuki ,  Tadahiro Kaneko

发明人： Takao Umeda ,  Ryoji Kojima ,  Masayasu Anzai ,  Michio Yokosuka ,  Katsuhiko Suzuki ,  Tadahiro Kaneko

IPC分类号： G03G15/20 ,  G03G15/23 ,  G03G15/22

CPC分类号： G03G15/2053 ,  G03G15/231 ,  G03G2215/2083

摘要： A fixing system for fixing toner images onto an image printing system such that the image printing medium bearing the toner images on the obverse side and the reverse sides thereof is passed through a nip area between a pair of fixing rollers. In the nip area, a rotation speed of a first fixing roller, which comes into contact with a not-yet fixed toner image, which is formed on the obverse side of the image printing medium, is set to be substantially equal to a rotation speed of a second fixing roller, which comes in contact with a not-yet fixed toner image, formed on the reverse side of the image printing medium. This is accomplished by setting the diameters of the various layers of the first fixing roller to be equal to that of the second fixing roller. When the image printing medium is moved through the nip area by the fixing rollers, a moving speed of the upper side of the image printing medium is equal to that of the lower side thereof. Thus, stresses on the image printing medium are not caused, and no character blur takes place.

摘要翻译： 一种用于将调色剂图像定影到图像打印系统上的定影系统，使得承载其正面和反面上的调色剂图像的图像打印介质通过一对定影辊之间的辊隙区域。 在夹持区域中，形成在图像打印介质的正面上的与未固定的调色剂图像接触的第一定影辊的旋转速度被设定为基本上等于旋转速度 与形成在图像打印介质的背面上的未固定的调色剂图像接触的第二定影辊。 这是通过将第一定影辊的各层的直径设定为等于第二定影辊的直径来实现的。 当图像打印介质通过定影辊移动通过夹持区域时，图像打印介质的上侧的移动速度等于其下侧的移动速度。 因此，不会引起图像打印介质上的应力，并且不会发生字符模糊。

公开(公告)号：US5659841A

公开(公告)日：1997-08-19

申请号：US580354

申请日：1995-12-28

申请人： Takao Umeda ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Shinji Asai ,  Kozi Kato ,  Yoshihiro Gunji

发明人： Takao Umeda ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Shinji Asai ,  Kozi Kato ,  Yoshihiro Gunji

IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043 ,  G03G15/06 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G15/5037 ,  G03G15/01

摘要： An electrostatic recording control method wherein there are provided a single surface potential sensor between a first and second developer units, a detector for detecting the characteristic of a factor influencing the dark attenuation characteristic of the sensitive body, comprising the steps of: irradiating the surface of a charged sensitive body with the test pattern having prescribed exposure energy by an exposure system to form a test electrostatic image on the photosensitive body; passing the test electrostatic latent image with the developing function of the first developer unit stopping to measure the surface potential of the test electrostatic latent image by the sensor; changing the control setting potential at a position where the sensor is set according to the output from the detector; comparing the potential measured by the passing step with the control setting potential changed by the changing step to control one of the voltage to be applied to the latent image forming charger and the exposure energy for forming the test pattern so that the measurement potential is a control setting potential; forming a test electrostatic latent image on the photosensitive body after the comparing step; applying a prescribed bias to the first developer unit to form the first toner image corresponding to the test electrostatic latent image; and measuring the surface potential of the first toner image to set the bias voltage of the second developer unit according to the value measured.

摘要翻译： 一种静电记录控制方法，其中在第一和第二显影单元之间提供单个表面电位传感器，用于检测影响敏感体的暗衰减特性的因素的特性的检测器，包括以下步骤： 具有通过曝光系统具有规定曝光能量的测试图案的带电敏感体，以在感光体上形成测试静电图像; 使第一显影单元的显影功能通过测试静电潜像停止，以测量传感器测试的静电潜像的表面电位; 根据检测器的输出，在设定传感器的位置改变控制设定电位; 将通过步骤测量的电位与通过改变步骤改变的控制设置电位进行比较，以控制要施加到潜像形成充电器的电压中的一个和用于形成测试图案的曝光能量，使得测量电位为控制 设定潜力 在比较步骤之后在感光体上形成测试静电潜像; 对所述第一显影剂单元施加规定的偏压，以形成与所述测试静电潜像对应的第一调色剂图像; 以及测量第一调色剂图像的表面电位，以根据所测量的值设定第二显影剂单元的偏置电压。

公开(公告)号：US5600405A

公开(公告)日：1997-02-04

申请号：US257296

申请日：1994-06-09

申请人： Takao Umeda ,  Katsuya Kawai ,  Yosuke Saito ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Masato Miwa ,  Takashi Suzuki ,  Teruaki Mitsuya ,  Yasuo Takuma

发明人： Takao Umeda ,  Katsuya Kawai ,  Yosuke Saito ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Masato Miwa ,  Takashi Suzuki ,  Teruaki Mitsuya ,  Yasuo Takuma

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G15/161 ,  G03G15/166 ,  G03G2215/1657 ,  G03G2215/1661

摘要： A bias cleaning system has an electrically conductive brush roller for collecting toner which has to adhered a transfer belt by scrubbing the toner off the transfer belt under a condition in which a direct current voltage of the opposite polarity to the charge of the toner is applied to the brush roller. A corona charger is also provided for decreasing the amount of charge on the toner on the transfer belt in a region of the belt up-stream of the electrically conductive brush roller in the moving direction of the transfer belt.

摘要翻译： 偏置清洁系统具有用于收集调色剂的导电刷辊，该调色剂必须在将与调色剂电荷相反极性的直流电压施加到其上的条件下通过将调色剂从转印带上除去而粘附转印带 刷辊。 还提供电晕充电器，用于减小导电刷辊沿转印带移动方向的带上游区域中转印带上的调色剂上的电荷量。

公开(公告)号：US5095376A

公开(公告)日：1992-03-10

申请号：US556580

申请日：1990-07-24

申请人： Takao Umeda ,  Tetsuya Nagata ,  Tatsuo Igawa

发明人： Takao Umeda ,  Tetsuya Nagata ,  Tatsuo Igawa

IPC分类号： G09G3/36 ,  B41J2/445 ,  B41J2/447 ,  G02F1/133 ,  G06K15/12

CPC分类号： G06K15/1252 ,  B41J2/4473

摘要： An apparatus and method for driving an optical printer having at least one liquid crystal optical switch including a ferroelectric liquid crystal layer interposed between a pair of substrates having electrodes on confronting surfaces thereof, the at least one liquid crystal switch being disposed between a light source and a photosensitive surface, a light transmission state of the at least one liquid crystal optical switch being controlled by application of a voltage signal to the at least one liquid crystal optical switch so as to control light transmission to the photosensitive surface. A first voltage signal is applied to the liquid crystal of at least one liquid crystal optical switch in a writing period in which the light transmission state is determined in accordance with a printing signal for printing. A second voltage signal having a DC component of one polarity is applied to the liquid crystal layer in a retention period. A third voltage signal having a DC component of an opposite polarity is applied to the liquid crystal layer in a reset period in which the at least one liquid crystal optical switch is placed in a light interrupting state, and a fourth voltage signal having a DC component of the one polarity is applied to the liquid crystal layer in a period other than an excluding period which is formed of the writing period, the retention period and the reset period.

摘要翻译： 一种用于驱动光学打印机的装置和方法，所述光学打印机具有至少一个液晶光学开关，所述液晶光学开关包括介于具有在其相对表面上的电极的一对基板之间的铁电液晶层，所述至少一个液晶开关设置在光源和 感光表面，通过向至少一个液晶光开关施加电压信号来控制至少一个液晶光开关的透光状态，以控制对感光表面的光透射。 在根据用于打印的打印信号确定光透射状态的写入周期中，对至少一个液晶光开关的液晶施加第一电压信号。 具有一个极性的DC分量的第二电压信号在保持期间被施加到液晶层。 具有相反极性的DC分量的第三电压信号在至少一个液晶光开关处于遮光状态的复位时段中被施加到液晶层，并且具有DC分量的第四电压信号 在由写入期间，保持期间和复位期间形成的排除期间以外的期间向液晶层施加一个极性。