公开(公告)号：US06276772B1

公开(公告)日：2001-08-21

申请号：US09323228

申请日：1999-06-01

申请人： Masatoshi Sakata ,  Keiji Kunimi ,  Takashi Sekino ,  Kazuo Shimizu

发明人： Masatoshi Sakata ,  Keiji Kunimi ,  Takashi Sekino ,  Kazuo Shimizu

IPC分类号： B41J2938

CPC分类号： B41J2/04506 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588

摘要： A piezoelectric type ink recording device has piezoelectric elements for ejecting ink droplets. Variation can exist in characteristics of the piezoelectric elements that results in variation in speed at which the piezoelectric elements eject ink droplets. In order to suppress this variation in ejection speed, the ink recording device has a driver shared by all of the piezoelectric elements and a separate discharge control circuit for each piezoelectric element. The driver shared and the separate discharge control circuits output pulses to the piezoelectric elements in synchronization. Each piezoelectric element starts discharging its charge in synchronization with the falling edge of a drive pulse from the driver. As a result, the piezoelectric elements deform during the falling edge of the drive pulse to increase volume of corresponding ink chambers, thereby drawing ink into the ink chambers. However, each piezoelectric element continues discharging for a time determined by the width of the pulse from the corresponding discharge control circuit. In this way, the amount of charge discharged from each piezoelectric element can be individually regulated by changing the pulse waveform applied to each piezoelectric element by the corresponding discharge control circuit.

摘要翻译： 压电型油墨记录装置具有用于喷射墨滴的压电元件。 在压电元件的特性中可能存在变化，导致压电元件喷射墨滴的速度变化。 为了抑制喷墨速度的变化，墨水记录装置具有由所有压电元件共享的驱动器和用于每个压电元件的单独的放电控制电路。 驱动器共享，并且单独的放电控制电路同步地向压电元件输出脉冲。 每个压电元件与驱动器的驱动脉冲的下降沿同步开始放电。 结果，压电元件在驱动脉冲的下降沿期间变形，从而增加相应的墨水室的体积，从而将墨水吸入墨水室。 然而，每个压电元件继续放电一个由相应的放电控制电路的脉冲宽度确定的时间。 以这种方式，可以通过改变由相应的放电控制电路施加到每个压电元件的脉冲波形来分别调节从每个压电元件放电的电荷量。

公开(公告)号：US06328397B1

公开(公告)日：2001-12-11

申请号：US09390669

申请日：1999-09-07

申请人： Kazuo Shimizu ,  Takuji Torii ,  Nobuhiro Noto ,  Yoshitaka Akiyama ,  Masatoshi Sakata ,  Shigenori Suematsu

发明人： Kazuo Shimizu ,  Takuji Torii ,  Nobuhiro Noto ,  Yoshitaka Akiyama ,  Masatoshi Sakata ,  Shigenori Suematsu

IPC分类号： B41J2938

CPC分类号： B41J2/04508 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588

摘要： To eliminate influence of cross-talk in an on-demand multi-nozzle ink jet head, drive pulses to be applied to piezoelectric elements for driving nozzles aligned in a row are individually adjusted so that the nozzles eject ink droplets at the same speed when the nozzles are driven simultaneously. To the piezoelectric elements which are deactuated during printing, a dummy drive pulse having a voltage level in a range from 50 to 75% of a minimum voltage for ejecting an ink droplet is applied, whereby the ejection speed achieved when individual nozzles are driven approaches the ejection speed achieved when all nozzles are driven simultaneously. As such, the print quality is improved.

摘要翻译： 为了消除按需多喷嘴喷墨头中的串扰的影响，单独调整要施加到用于驱动排列成行的喷嘴的压电元件的驱动脉冲，使得喷嘴以相同的速度喷射墨滴 喷嘴同时驱动。 对于在打印期间被去激活的压电元件，施加具有用于喷射墨滴的最小电压的50至75％范围内的电压电平的虚拟驱动脉冲，由此在驱动各个喷嘴时实现的喷射速度接近 所有喷嘴同时驱动时的喷射速度。 因此，打印质量得到改善。

公开(公告)号：US06173647B1

公开(公告)日：2001-01-16

申请号：US09192261

申请日：1998-11-16

申请人： Atsushi Kakuta ,  Masatoshi Sakata ,  Yutaka Shoji ,  Shigenori Suematsu

发明人： Atsushi Kakuta ,  Masatoshi Sakata ,  Yutaka Shoji ,  Shigenori Suematsu

IPC分类号： B41C110

CPC分类号： B41C1/1066

摘要： A solid-ink printing original plate which comprises a substrate and an image comprising an ink dot formed on the substrate, and which is prepared by a process comprising the steps of: melting a solid ink that is a solid at a room temperature; and jetting the melt of the solid ink onto a substrate to form an ink dot, wherein the ink dots that have solidified on the substrate have an ink dot height of at least 5 &mgr;m, and a ratio (aspect ratio) of the ink dot height to the minor axis size of the ink dot of from 0.05 to 0.5. Also disclosed is a process for producing the solid-ink printing original plate.

摘要翻译： 一种固体油墨印刷原版，其包括基材和包含形成在基材上的墨点的图像，其通过包括以下步骤的方法制备，所述方法包括：在室温下熔化固体油墨; 并将固体油墨的熔体喷射到基板上以形成墨点，其中在基板上固化的墨点具有至少5μm的墨点高度和墨点高度的比率（纵横比） 墨点的短轴尺寸为0.05〜0.5。 还公开了一种生产固体油墨印刷原版的方法。

公开(公告)号：US06283031B1

公开(公告)日：2001-09-04

申请号：US09192263

申请日：1998-11-16

申请人： Atsushi Kakuta ,  Masatoshi Sakata ,  Yasuo Takano ,  Shigenori Suematsu ,  Yutaka Shoji

发明人： Atsushi Kakuta ,  Masatoshi Sakata ,  Yasuo Takano ,  Shigenori Suematsu ,  Yutaka Shoji

IPC分类号： B41C110

CPC分类号： B41C1/1066

摘要： A solid-ink printing original plate which comprises a substrate and an image comprising ink dots formed on the substrate, and which is produced by a process comprising the steps of: melting a solid ink that is a solid at a room temperature; and jetting the melt of the solid ink onto a substrate to form ink dots, wherein the solid ink has a penetration index of not more than 5 at a room temperature. Also disclosed is a process for producing the solid-ink printing original plate.

摘要翻译： 一种固体油墨印刷原版，其包括基材和包含形成在基材上的墨点的图像，其通过包括以下步骤的方法制备：包括以下步骤：在室温下熔化固体油墨; 并将固体油墨的熔体喷射到基材上以形成油墨点，其中固体油墨在室温下的渗透指数不超过5。 还公开了一种生产固体油墨印刷原版的方法。

公开(公告)号：US4746928A

公开(公告)日：1988-05-24

申请号：US902561

申请日：1986-09-02

申请人： Takahiro Yamada ,  Yasumasa Matsuda ,  Makoto Yoshino ,  Masatoshi Sakata

发明人： Takahiro Yamada ,  Yasumasa Matsuda ,  Makoto Yoshino ,  Masatoshi Sakata

IPC分类号： B41J2/01 ,  B41J2/02 ,  B41J2/075 ,  B41J2/12 ,  C09D11/00 ,  C09D11/10 ,  C09D11/30 ,  G01D15/18

CPC分类号： B41J2/12 ,  B41J2002/033

摘要： An ink jet recorder in which ink droplets having different, large and small diameters are produced, only the small diameter ink droplets of the ink droplets are selectively charged and deflected to record dots on a recording medium. The property of the ink employed in the recorder is selected to meet the condition K.ltoreq.N.sup.n .times.T.sup.m (N represents the viscosity of the ink, T represents the surface tension thereof, and n, m and K are positive constants, respectively), thereby maintaining the diameter of the small diameter ink droplets at a substantially constant value in the operation temperature range of the recorder.

摘要翻译： 一种喷墨记录器，其中产生具有不同的大直径和小直径的墨滴，只有墨滴的小直径墨滴被选择性地带电并偏转以在记录介质上记录点。 选择记录器中使用的油墨的性质以满足条件K Nn×Tm（N表示油墨的粘度，T表示其表面张力，n，m和K分别为正常数），由此 将小直径墨滴的直径保持在记录器的操作温度范围内基本上恒定的值。