公开(公告)号：US08157342B2

公开(公告)日：2012-04-17

申请号：US12047973

申请日：2008-03-13

申请人： Tetsu Morino ,  Noboru Sawayama ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsuro Hirota ,  Takumi Hagiwara ,  Masatoshi Sakakitani

发明人： Tetsu Morino ,  Noboru Sawayama ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsuro Hirota ,  Takumi Hagiwara ,  Masatoshi Sakakitani

IPC分类号： B41J29/38

CPC分类号： B41J2/2135 ,  B41J19/207

摘要： A disclosed liquid-jet device includes a liquid-jet head configured to jet liquid droplets; a pattern formation control unit configured to control the liquid-jet head and thereby to form a test pattern composed of separate liquid droplets on a water-repellent part; a detecting unit including a light-emitting element configured to illuminate the test pattern on the water-repellent part and a light-receiving element configured to receive specularly reflected light from the illuminated test pattern and to output a detection signal proportional to the received specularly reflected light; and a landing position adjusting unit configured to adjust landing positions of the liquid droplets based on the detection signal from the light-receiving element.

摘要翻译： 所公开的液体喷射装置包括构造成喷射液滴的液体喷射头; 图案形成控制单元，被配置为控制喷液头，从而在防水部件上形成由分离的液滴组成的测试图案; 检测单元，其包括被配置为照亮所述防水部件上的测试图案的发光元件和被配置为从所述被照亮测试图案接收镜面反射光并且输出与所接收的镜面反射的成比例的检测信号的光接收元件 光; 以及着陆位置调整单元，其被配置为基于来自所述光接收元件的检测信号来调节所述液滴的着陆位置。

公开(公告)号：US20120063815A1

公开(公告)日：2012-03-15

申请号：US13225905

申请日：2011-09-06

申请人： Hideyasu SEKI ,  Yasuyuki ISHII ,  Hideki KOSUGI ,  Tetsuro HIROTA ,  Masaaki YAMADA ,  Atsushi KUROKAWA

发明人： Hideyasu SEKI ,  Yasuyuki ISHII ,  Hideki KOSUGI ,  Tetsuro HIROTA ,  Masaaki YAMADA ,  Atsushi KUROKAWA

IPC分类号： G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0818 ,  G03G2215/0651

摘要： A development device includes a developer container; a rotary cylindrical developer carrier including an outer electrode including multiple electrode portions arranged in a circumferential direction of the developer carrier, an inner electrode provided on an inner circumferential side of the developer carrier from the outer electrode, an insulation layer disposed between the outer electrode and the inner electrode, and a surface layer; and a bias power source to apply a first bias voltage and a second bias voltage to the inner electrode and the outer electrode, respectively. The first bias power source causes an electrical potential difference that changes with time between the inner electrode and the outer electrode to cause the developer to hop on a circumferential surface of the developer carrier. At least one of the first bias voltage and the second bias voltage has a cyclic waveform in which pulse-on time is reduced.

摘要翻译： 显影装置包括显影剂容器; 包括外电极的旋转圆柱形显影剂载体，所述外电极包括沿所述显影剂载体的圆周方向布置的多个电极部分，从所述外电极设置在所述显影剂载体的内周侧上的内电极，设置在所述外电极与所述外电极之间的绝缘层， 内部电极和表面层; 以及分别向内电极和外电极施加第一偏置电压和第二偏置电压的偏置电源。 第一偏置电源引起在内部电极和外部电极之间随时间变化的电位差，以使显影剂在显影剂载体的圆周表面上跳跃。 第一偏置电压和第二偏置电压中的至少一个具有脉冲开启时间减少的循环波形。

公开(公告)号：US20120063797A1

公开(公告)日：2012-03-15

申请号：US13222344

申请日：2011-08-31

申请人： Tetsuro HIROTA ,  Hideki KOSUGI ,  Masaaki YAMADA ,  Atsushi KUROKAWA ,  Hideyasu SEKI ,  Yasuyuki ISHII

发明人： Tetsuro HIROTA ,  Hideki KOSUGI ,  Masaaki YAMADA ,  Atsushi KUROKAWA ,  Hideyasu SEKI ,  Yasuyuki ISHII

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0651

摘要： An image forming apparatus includes a latent image carrier to carry a latent image, a developing device having a toner carrier with first and second electrodes to develop the latent image by transferring the toner to a developing region between the toner carrier and the latent image carrier while causing the toner to hop between the first and second electrodes and attaching the hopping toner to the latent image, a pulsed power supply to output a first periodic pulse voltage having a mean potential the same as a normal toner charge and a second periodic pulse voltage, a smoothing circuit to make the first periodic pulse voltage smooth to generate a direct voltage, and a toner layer thickness regulator member to regulate, on receiving the direct voltage, a thickness of the toner layer in a region between a toner supply position at which toner is supplied and the developing region.

摘要翻译： 图像形成装置包括：潜像载体，用于承载潜像;显影装置，具有带有第一和第二电极的调色剂载体，以通过将调色剂转印到调色剂载体和潜像载体之间的显影区域来显影潜像，同时 使调色剂在第一和第二电极之间跳跃并将跳跃调色剂附着到潜像上，脉冲电源输出具有与正常调色剂电荷和第二周期性脉冲电压相同的平均电位的第一周期性脉冲电压， 使第一周期性脉冲电压平滑以产生直流电压的平滑电路;以及调色剂层厚度调节部件，其在接收到直接电压时，调节调色剂供给位置之间的区域中的调色剂层的厚度， 被供应和显影区域。

公开(公告)号：US20120057891A1

公开(公告)日：2012-03-08

申请号：US13215700

申请日：2011-08-23

申请人： Yuji ISHIKURA ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Masanori Horike ,  Shin Kayahara

发明人： Yuji ISHIKURA ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Masanori Horike ,  Shin Kayahara

IPC分类号： G03G15/08

CPC分类号： G03G15/0131 ,  G03G15/0189 ,  G03G15/1605

摘要： An image forming apparatus includes a latent image carrier; a latent image writer to write a latent image on the latent image carrier; a developing unit including a toner carrier having first and second electrodes insulated via an insulator member and a voltage applying unit to apply voltages to the first and second electrodes having a potential difference to generate first electric fields to cause the toner to hop from the toner carrier to the latent image carrier to develop a toner image; and a transfer unit to transfer the developed toner image to a transferring member. When alternating voltages having a same phase and same amplitude are applied to the first and second electrodes to form second electric fields between the latent image carrier and the toner carrier, the toner is discharged from the toner carrier to the latent image carrier in a toner discharge mode.

摘要翻译： 图像形成装置包括潜像载体; 潜像写入器，用于在潜像载体上写入潜像; 显影单元，包括具有通过绝缘体构件绝缘的第一和第二电极的调色剂载体和施加电压的电压施加到具有电位差的第一和第二电极，以产生第一电场，以使调色剂从调色剂载体 到潜像载体以形成调色剂图像; 以及将显影的调色剂图像转印到转印部件的转印单元。 当具有相同相位和相同振幅的交变电压施加到第一和第二电极以在潜像载体和调色剂载体之间形成第二电场时，调色剂在调色剂排出物中从调色剂载体排出到潜像载体 模式。

公开(公告)号：US20090015621A1

公开(公告)日：2009-01-15

申请号：US12164377

申请日：2008-06-30

申请人： Tetsuro Hirota ,  Takumi Hagiwara ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsu Morino ,  Noboru Sawayama

发明人： Tetsuro Hirota ,  Takumi Hagiwara ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsu Morino ,  Noboru Sawayama

IPC分类号： B41J29/393

CPC分类号： B41J29/393 ,  B41J2/2142 ,  B41J19/207 ,  B41J29/38

摘要： An image forming apparatus includes a recording head, a water-repellent transfer belt, a pattern formation controller, a read unit, and a detection unit. The recording head has a plurality of nozzles aligned in a given direction, and ejects droplets of a liquid therefrom. The pattern formation controller directs each of the plurality of nozzles to eject the liquid to form a detection pattern on the transfer belt. The detection pattern has multiple droplets ejected from each of the plurality of nozzles sequentially arranged and spaced apart from each other both in the given direction and in a direction orthogonal to the given direction. The read unit includes a light emitting element and a light receiving element, and reads the detection pattern to output a read result. The detection unit detects a defective nozzle according to the read result.

摘要翻译： 图像形成装置包括记录头，防水转印带，图案形成控制器，读取单元和检测单元。 记录头具有沿给定方向排列的多个喷嘴，并从其喷出液滴。 图案形成控制器引导多个喷嘴中的每一个喷射液体以在转印带上形成检测图案。 检测图案具有从给定方向和与给定方向正交的方向上顺序排列和间隔开的多个喷嘴中的每一个排出的多个液滴。 读取单元包括发光元件和光接收元件，并且读取检测图案以输出读取结果。 检测单元根据读取结果来检测有缺陷的喷嘴。

公开(公告)号：US20080231649A1

公开(公告)日：2008-09-25

申请号：US12048729

申请日：2008-03-14

申请人： Kenichi KAWABATA ,  Noboru Sawayama ,  Tetsuro Hirota ,  Mamoru Yorimoto ,  Tetsu Morino ,  Takumi Hagiwara

发明人： Kenichi KAWABATA ,  Noboru Sawayama ,  Tetsuro Hirota ,  Mamoru Yorimoto ,  Tetsu Morino ,  Takumi Hagiwara

IPC分类号： B41J29/38 ,  B41J29/393

CPC分类号： B41J29/38 ,  B41J2/17509 ,  B41J19/207 ,  B41J29/393

摘要： A disclosed image forming apparatus for forming an image on a recording medium being conveyed includes: a recording head discharging droplets; a pattern forming unit forming an adjustment pattern for detecting displacement of landing positions of droplets on a water-repellent member, the adjustment pattern including a minimum block pattern for each detection item and being formed with plural droplets independent of one another; a reading unit including a light emitting unit projecting a light onto the adjustment pattern and a light receiving unit receiving a regular reflection light from the adjustment pattern; and a landing position correcting unit correcting the landing positions of the droplets discharged from the recording head based on a result of reading by the reading unit.

摘要翻译： 公开的用于在被传送的记录介质上形成图像的图像形成装置包括：排出液滴的记录头; 图案形成单元，其形成用于检测防水构件上的液滴的着陆位置的位移的调整图案，所述调整图案包括用于每个检测项目的最小块图案，并且彼此独立地形成有多个液滴; 读取单元，包括将光投射到调整图案上的发光单元和从调节图案接收正常反射光的光接收单元; 以及着陆位置校正单元，其基于读取单元的读取结果来校正从记录头排出的液滴的着陆位置。

公开(公告)号：US06331052B1

公开(公告)日：2001-12-18

申请号：US09158660

申请日：1998-09-22

申请人： Taeko Murai ,  Shuzo Matsumoto ,  Mitsumi Fujii ,  Tomoaki Nakano ,  Hideyuki Makita ,  Yoshihisa Ohta ,  Shinichi Kakuda ,  Tetsuro Hirota

发明人： Taeko Murai ,  Shuzo Matsumoto ,  Mitsumi Fujii ,  Tomoaki Nakano ,  Hideyuki Makita ,  Yoshihisa Ohta ,  Shinichi Kakuda ,  Tetsuro Hirota

IPC分类号： B41J2938

CPC分类号： B41J2/04581 ,  B41J2/04588 ,  B41J2/04596 ,  B41J2/14274

摘要： An ink jet printing apparatus includes an ink jet head having a plurality of nozzles for respectively ejecting ink drops, a plurality of ink chambers communicating with the nozzles, and a plurality of electromechanical conversion elements corresponding to the respective nozzles. The volume of the ink chamber of the non-drive channel is increased by the influence of the drive channel adjacent thereto, and thereby undesired ejection of the ink drop occurs. To solve this problem, a drive energy set for ejecting the ink drop is applied to the piezoelectric elements of the drive chambers n−1, n+1 and a reduced drive energy set for not ejecting the ink drops is applied to the piezoelectric element of the non-drive channel n.

摘要翻译： 喷墨打印设备包括具有多个用于分别喷射墨滴的喷嘴的喷墨头，与喷嘴连通的多个墨室以及与各个喷嘴对应的多个机电转换元件。 通过与其相邻的驱动通道的影响，非驱动通道的墨室的体积增加，从而发生墨滴的不希望的喷射。 为了解决这个问题，将用于喷射墨滴的驱动能量组施加到驱动室n-1，n + 1的压电元件，并且将不喷射墨滴的减小的驱动能量施加到压电元件 非驱动器通道n。

公开(公告)号：US6053597A

公开(公告)日：2000-04-25

申请号：US864302

申请日：1997-05-28

申请人： Tetsuro Hirota

发明人： Tetsuro Hirota

IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/175 ,  B41J29/393

CPC分类号： B41J2/17546

摘要： An ink jet recording apparatus capable of automatically changing a mode of recording operation to fit to a newly installed recording head unit, when at least one interchangeable recording head unit is replaced. The ink jet recording apparatus includes an interchangeable recording head unit, which has an ink jet head and an ink cartridge and which also includes an information retaining plate, mounted on an exterior surface of the recording head unit, for retaining information of recording characteristics of the recording head unit, including characteristics of the number of ink jet nozzles, recording density, and ink discharging efficiency; a reading device for reading information retained on the information retaining plate mounted on the recording head unit; and a controller for instructing the reading device to read an information retaining plate when at least one of the recording head units is replaced and for performing, in accordance with the information of the recording characteristics of the interchangeable recording head unit, at least one function for setting up a mode of recording operation of the novel ink jet recording apparatus and transmitting information to an external host system.

摘要翻译： 一种喷墨记录装置，当更换至少一个可互换的记录头单元时，能够自动地改变记录操作模式以适应新安装的记录头单元。 喷墨记录装置包括可互换记录头单元，其具有喷墨头和墨盒，并且还包括安装在记录头单元的外表面上的信息保持板，用于保持记录头的记录特性的信息 记录头单元，包括喷墨喷嘴数量的特性，记录密度和喷墨效率; 用于读取保存在安装在记录头单元上的信息保持板上的信息的读取装置; 以及控制器，用于在替换记录头单元中的至少一个时指示读取装置读取信息保持板，并且根据可互换记录头单元的记录特性的信息执行至少一个功能， 建立新型喷墨记录装置的记录操作模式，并向外部主机系统发送信息。

公开(公告)号：US5821953A

公开(公告)日：1998-10-13

申请号：US582907

申请日：1996-01-04

申请人： Tomoaki Nakano ,  Tetsuro Hirota

发明人： Tomoaki Nakano ,  Tetsuro Hirota

IPC分类号： B41J2/045

CPC分类号： B41J2/04541 ,  B41J2/04553 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/0459

摘要： A minimum per-time voltage-increase gradient during a time a driving voltage is being increased is not less than 1/8 a maximum per-time voltage-increase gradient during said time the driving voltage is being increased. A driving-voltage increase amount which the driving voltage is increased during a time, within a predetermined time, during which a per-time voltage-increase gradient is maintained at a maximum voltage is not less than 1/2 of a full driving-voltage increase amount which the driving voltage is increased during said predetermined time. When the driving voltage is decreased, a per-time voltage-decrease gradient when said voltage decrease is started is sharper than an average per-time voltage-decrease gradient, and a per-time voltage-decrease gradient when said voltage decrease is ended is less sharp than the average per-time voltage-decrease gradient. Further, a time during which a per-time voltage-decrease gradient is maintained less sharp than said average per-time voltage-decrease gradient is not less than 1/2 a full time during which the driving voltage is being decreased.

摘要翻译： 在驱动电压增加的时间内，最大每时间电压增加梯度的最小每时间电压增加梯度不小于+ E，fra 1/8 + EE。 在每个时间增压梯度保持最大电压的预定时间内，驱动电压增加的驱动电压增加量不小于+ E，f 1/2 + EE 在所述预定时间期间驱动电压增加的完全驱动电压增加量。 当驱动电压降低时，当所述电压降低开始时的每个时间的电压 - 降低梯度比平均每时间减压梯度更尖锐，并且当所述电压下降结束时的每个时间的电压 - 降低梯度是 不如平均每时间电压 - 降低梯度的锐化。 此外，每个时间电压降低梯度保持的时间比所述平均每时间电压 - 降低梯度的清晰度的时间不小于+ E，fra 1/2 + EE，其中驱动电压为 减少

公开(公告)号：US4644372A

公开(公告)日：1987-02-17

申请号：US755174

申请日：1985-07-15

申请人： Tetsuro Hirota

发明人： Tetsuro Hirota

IPC分类号： B41J2/20 ,  B41J29/48 ,  G01D15/28

CPC分类号： B41J29/48 ,  B41J2/20

摘要： A printer which utilizes a charge controlled ink jet head is disclosed. A platen and its surrounding parts will be marred if the ink jet head is operated when there is no paper around the platen. Thus, the detection of a paper is of importance, and accordingly, a paper sensor is disposed near the platen. To prevent the sensor from being contaminated by the ink, the paper sensor is disposed rearward of the platen, as viewed from the ink jet head. The presence or absence of a record paper in front of the ink jet head is determined by a microprocessor which responds to a detection signal from the paper sensor and the amount of rotation which the platen has undergone since the detection of a paper by the sensor. If the printing operation is in pause over a given time interval at the end thereof or after the initiation of the projection of an ink jet, the projection of the ink jet is interrupted in order to reduce evaporation of solvent from the ink. It takes a relatively long time from the initiation of the projection of an ink jet until the recording operation is enabled. For this reason, a reset switch is provided to permit the projection of an ink jet to be started before a print command is supplied. The operator may operate the reset switch to initiate the projection of the ink jet at a time earlier than the print command.

摘要翻译： 公开了一种利用电荷控制喷墨头的打印机。 如果在压板周围没有纸张时，如果喷墨头被操作，压板及其周围部分将被损坏。 因此，纸的检测是重要的，因此纸传感器设置在压板附近。 为了防止传感器被墨水污染，纸张传感器设置在从喷墨头观察的压板的后方。 在喷墨头前面的记录纸的存在或不存在由微处理器确定，该微处理器响应来自纸张传感器的检测信号和由于传感器检测到纸张而经受的台板转动量。 如果打印操作在其结束时或在喷墨投影开始之后的给定时间间隔内暂停，则喷墨的突起被中断，以便减少溶剂从油墨的蒸发。 从喷墨的投影开始到记录操作成为可能需要相当长的时间。 为此，提供复位开关以允许在提供打印命令之前启动喷墨的投影。 操作者可以操作复位开关以在比打印命令早的时间开始喷墨的投影。