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    • 7. 发明授权
    • System and methods for providing a head driving device
    • 用于提供头驱动装置的系统和方法
    • US06779863B2
    • 2004-08-24
    • US10379806
    • 2003-03-06
    • Hidenori Usuda
    • Hidenori Usuda
    • B41J2938
    • B41J2/04553B41J2/04541B41J2/04563B41J2/04573B41J2/04581B41J2/04588B41J2002/0052B41J2202/09
    • The present invention provides a head driving device and method capable of ejecting a necessary amount of a viscous body from a head including a pressure generating element, such as a piezoelectric element, a droplet ejecting apparatus including the head driving device, a head driving program, and a device manufacturing method including, as one manufacturing step, a step of ejecting a viscous body using the method. The invention can be achieved by applying a drive signal COM to a pressure generating element, such as a piezoelectric element included in a head. A clock signal can be supplied to a drive signal generating circuit that generates the drive signal COM. The drive signal generating circuit generates the drive signal in synchronization with the clock signal. According to the present invention, the rate of change in voltage value of the drive signal per unit time is changed by changing the frequency of the clock signal in accordance with a deformation rate of the pressure generating element per unit time.
    • 本发明提供一种头驱动装置和方法,其能够从包括压电元件等压力产生元件的头部喷射必要量的粘性体,包括头驱动装置的液滴喷射装置,头驱动程序, 以及包括作为一个制造步骤的使用该方法喷射粘性体的步骤的装置制造方法。 本发明可以通过将驱动信号COM施加到诸如包括在头部中的压电元件的压力产生元件来实现。 时钟信号可以被提供给产生驱动信号COM的驱动信号发生电路。 驱动信号发生电路与时钟信号同步地产生驱动信号。 根据本发明,通过根据每单位时间的压力产生元件的变形率改变时钟信号的频率来改变每单位时间的驱动信号的电压值的变化率。
    • 9. 发明申请
    • Method and apparatus for forming image with feedback control of recording liquid
    • 用记录液反馈控制形成图像的方法和装置
    • US20020051029A1
    • 2002-05-02
    • US10012310
    • 2001-12-12
    • FUJI PHOTO FILM CO., LTD.
    • Ryoichi Yamamoto
    • B41J029/393G01D015/16
    • B41J2/04563B41J2/04576B41J2/0458B41J2/04581B41J2/175B41J2002/0052B41J2002/022
    • There is disclosed an image forming method for mixing a plurality of recording liquids to produce a mixed liquid with a desired density and/or color and transporting the mixed liquid to an image receiving medium to form an image. The actual value of the mixture proportion of the mixed liquid is constantly monitored in the vicinity of the confluent point of the recording liquids (in the vicinity of the downstream side of the confluent point or on the upstream side), and is compared with the target value of the mixture proportion obtained based on the image signal. And the supply amount of each recording liquid is subjected to feedback control in such a manner that the detected actual value agrees with the target value. The mixture proportion is prevented from fluctuating by influences of a recording liquid temperature, an atmospheric pressure, and the like and an image quality is enhanced.
    • 公开了一种图像形成方法,用于混合多个记录液体以产生具有所需浓度和/或颜色的混合液体,并将混合液体输送到图像接收介质以形成图像。 在记录液体的汇合点附近(汇合点或上游侧的下游侧),不断地监测混合液的混合比例的实际值,并与目标 基于图像信号获得的混合比例的值。 并且以使得检测到的实际值与目标值一致的方式对每个记录液体的供给量进行反馈控制。 通过记录液温度,大气压等的影响,可以防止混合比例的波动,提高图像质量。