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    • 4. 发明申请
    • Ink jet break-off length measurement apparatus and method
    • 喷墨断裂长度测量装置和方法
    • US20070064037A1
    • 2007-03-22
    • US11229454
    • 2005-09-16
    • Gilbert HawkinsMichael PiattJohn BrazasStephen Pond
    • Gilbert HawkinsMichael PiattJohn BrazasStephen Pond
    • B41J29/393
    • B41J2/03B41J2002/022B41J2002/033B41J2202/13B41J2202/16
    • A jet break-off length measurement apparatus for a continuous liquid drop emission system is provided. The jet break-off length measurement apparatus comprises a liquid drop emitter containing a positively pressurized liquid in flow communication with at least one nozzle for emitting a continuous stream of liquid. Heater resistor apparatus is adapted to transfer pulses of thermal energy to the liquid in flow communication with the at least one nozzle sufficient to cause the break-off of the at least one continuous stream of liquid into a stream of drops of predetermined volumes. A sensing apparatus adapted to detect the stream of drops of predetermined volumes is provided. A control apparatus is adapted to determine a characteristic of the stream of drops of predetermined volumes that is related to the break-off length. Further apparatus is adapted to inductively charge at least one drop and to cause electric field deflection of charged drops. Jet stimulation apparatus comprising a plurality of transducers corresponding to the plurality of nozzles and adapted to transfer pulses of energy to the liquid sufficient to cause the break-off of the plurality of continuous streams of liquid into a plurality of streams of drops of predetermined volumes is also disclosed. Methods of measuring the jet break-off length using phase sensitive amplification circuitry are disclosed.
    • 提供一种用于连续液滴发射系统的射流断裂长度测量装置。 射流断裂长度测量装置包括液滴发射器,其包含与至少一个喷嘴流动连通的正压液体,用于发射连续的液体流。 加热器电阻器装置适于将热能的脉冲传送到与至少一个喷嘴流动连通的液体,足以使至少一个连续的液体流分解成预定体积的液滴流。 提供了适于检测预定体积的液滴流的感测装置。 控制装置适于确定与断裂长度相关的预定体积的液滴流的特性。 进一步的装置适于对至少一滴进行电感充电并引起带电液滴的电场偏转。 喷射刺激装置包括对应于多个喷嘴的多个换能器并且适于将足够的能量脉冲转移到液体,以使多个连续的液体流分解成多个预定体积的液滴流, 也披露。 公开了使用相位敏感放大电路测量射流断裂长度的方法。
    • 7. 发明申请
    • CONTINUOUS INKJET PRINTER HAVING ADJUSTABLE DROP PLACEMENT
    • 连续喷墨打印机具有可调节水平放置
    • US20070257969A1
    • 2007-11-08
    • US11776749
    • 2007-07-12
    • Gilbert HawkinsDavid Jeanmaire
    • Gilbert HawkinsDavid Jeanmaire
    • B41J2/07
    • B41J2/07B41J2/03B41J2002/022B41J2002/031B41J2002/033
    • A method of printing includes associating a pixel area of a recording medium with a nozzle and a time interval during which a fluid drop ejected from the nozzle can impinge the pixel area of the recording medium; dividing the time interval into a plurality of subintervals; grouping some of the plurality of subintervals into blocks; associating one of two labels with each block, the first label defining a printing drop, the second label defining non-printing drops; associating no drop forming pulse between subintervals of each block having the first label; associating a drop forming pulse between each subinterval of each block having the second label; associating a drop forming pulse between other subintervals, the drop forming pulse being between each pair of consecutive blocks; and causing drops to be ejected from the nozzle based on the associated drop forming pulses.
    • 打印方法包括将记录介质的像素区域与喷嘴相关联,以及从喷嘴喷射的液滴撞击记录介质的像素区域的时间间隔; 将时间间隔划分成多个子区间; 将多个子间隔中的一些分成块; 将两个标签中的一个与每个块相关联,第一个标签定义打印滴,第二个标签定义非打印滴; 在具有第一标签的每个块的子间隔之间不关联液滴形成脉冲; 在具有第二标签的每个块的每个子间隔之间关联液滴形成脉冲; 在其他子间隔之间关联液滴形成脉冲,所述液滴形成脉冲在每对连续块之间; 并且基于相关联的液滴形成脉冲使液滴从喷嘴喷出。
    • 9. 发明申请
    • Continuous inkjet printer having adjustable drop placement
    • 连续喷墨打印机具有可调放置位置
    • US20060082606A1
    • 2006-04-20
    • US10903047
    • 2004-10-14
    • Gilbert HawkinsDavid Jeanmaire
    • Gilbert HawkinsDavid Jeanmaire
    • B41J29/38
    • B41J2/07B41J2/03B41J2002/022B41J2002/031B41J2002/033
    • A method of printing includes associating a pixel area of a recording medium with a nozzle and a time interval during which a fluid drop ejected from the nozzle can impinge the pixel area of the recording medium; dividing the time interval into a plurality of subintervals; grouping some of the plurality of subintervals into blocks; associating one of two labels with each block, the first label defining a printing drop, the second label defining non-printing drops; associating no drop forming pulse between subintervals of each block having the first label; associating a drop forming pulse between each subinterval of each block having the second label; associating a drop forming pulse between other subintervals, the drop forming pulse being between each pair of consecutive blocks; and causing drops to be ejected from the nozzle based on the associated drop forming pulses.
    • 打印方法包括将记录介质的像素区域与喷嘴相关联,以及从喷嘴喷射的液滴撞击记录介质的像素区域的时间间隔; 将时间间隔划分成多个子区间; 将多个子间隔中的一些分成块; 将两个标签中的一个与每个块相关联,第一个标签定义打印滴,第二个标签定义非打印滴; 在具有第一标签的每个块的子间隔之间不关联液滴形成脉冲; 在具有第二标签的每个块的每个子间隔之间关联液滴形成脉冲; 在其他子间隔之间关联液滴形成脉冲,所述液滴形成脉冲在每对连续块之间; 并且基于相关联的液滴形成脉冲使液滴从喷嘴喷出。
    • 10. 发明申请
    • INK JET BREAK-OFF LENGTH CONTROLLED DYNAMICALLY BY INDIVIDUAL JET STIMULATION
    • 墨水喷射喷射长时间由个体喷射动力学控制
    • US20070222826A1
    • 2007-09-27
    • US11758786
    • 2007-06-06
    • Gilbert HawkinsStephen PondMichael Piatt
    • Gilbert HawkinsStephen PondMichael Piatt
    • B41J2/02
    • B41J2/03B41J2002/022B41J2002/033B41J2202/13B41J2202/16
    • A jet break-off length control apparatus for a continuous liquid drop emission system is provided. The jet break-off length control apparatus comprises a liquid drop emitter containing a positively pressurized liquid in flow communication with at least one nozzle for emitting a continuous stream of liquid. Resistive heater apparatus is adapted to transfer pulses of thermal energy to the liquid in flow communication with the at least one nozzle sufficient to cause the break-off of the at least one continuous stream of liquid into a stream of drops of predetermined volumes. A sensing apparatus adapted to detect the stream of drops of predetermined volumes is provided. The jet break-off length control apparatus further comprises a control apparatus adapted to calculate a characteristic of the stream of drops of predetermined volumes and adapted to provide a break-off length calibration signal to the resistive heater apparatus wherein the break-off length calibration signal is determined at least by the characteristic of the stream of drops of predetermined volumes. Further apparatus is adapted to inductively charge at least one drop and to cause electric field deflection of charged drops. The present inventions are additionally configured to control break-off lengths for a plurality of streams of drops of predetermined volumes by determining a break-off length calibration signal that contains information specific to the plurality of streams of drops of predetermined volumes. Jet stimulation apparatus comprised of a plurality of thermomechanical or electromechanical transducer devices that transfer mechanical energy to the fluid are claimed. Methods of controlling the jet break-off length are also disclosed.
    • 提供一种用于连续液滴发射系统的喷射断裂长度控制装置。 喷射断裂长度控制装置包括液滴发射器,其包含与至少一个喷嘴流动连通的正压液体,用于发射连续的液体流。 电阻式加热器装置适于将热能的脉冲传送到与至少一个喷嘴流动连通的液体,足以使至少一个连续的液体流分解成预定体积的液滴流。 提供了适于检测预定体积的液滴流的感测装置。 喷射断裂长度控制装置还包括适于计算预定体积的液滴流的特性的控制装置,并适于向电阻加热器装置提供断开长度校准信号,其中断开长度校准信号 至少由预定体积的液滴流的特性确定。 进一步的装置适于对至少一滴进行电感充电并引起带电液滴的电场偏转。 本发明还被配置为通过确定包含特定于多个预定体积的液滴流的信息的断裂长度校准信号来控制多个预定体积的液滴流的断裂长度。 要求具有将机械能传递到流体的多个热机械或机电换能器装置构成的射流刺激装置。 还公开了控制喷射断裂长度的方法。