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公开(公告)号：US20190030888A1
公开(公告)日：2019-01-31
申请号：US16061215
申请日：2016-04-14
IPC分类号： B41J2/045
CPC分类号： B41J2/04591 , B41J2/04543 , B41J2/0458 , B41J2/04598
摘要： First electronics may determine a count of bubble jet resistors to be fired by a fire pulse group. A fire pulse generator may generate a fire pulse train for bubble jet resistors, the fire pulse train comprising a precursor pulse and a firing pulse separated by a dead time. Second electronics may adjust a width of the fire pulse for the bubble jet resistors of the fire pulse group by maintaining a first edge of the fire pulse relative to the precursor pulse and adjusting a second edge of the fire pulse relative to the precursor pulse based upon the determined count for the fire pulse group.
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公开(公告)号：US20180141332A1
公开(公告)日：2018-05-24
申请号：US15874837
申请日：2018-01-18
发明人： Clayton L. HOLSTUN , Kelly RONK , James A. FEINN
CPC分类号： B41J2/04528 , B41J2/04541 , B41J2/04563 , B41J2/0458 , B41J2/04596 , B41J2/04598 , B41J2/155 , B41J2202/08
摘要： According to an example, in a method for enhancing temperature distribution uniformity across a printer die, in which the printer die includes a plurality of drop generators arranged in a plurality of columns, a warming map that identifies the drop generators of the plurality of drop generators that are to be supplied with warming pulses to enhance temperature distribution uniformity across the printer die may be accessed. The warming map may identify a non-uniform distribution of the drop generators across a column of the plurality of columns. In addition, the warming map may be implemented to supply the drop generators identified in the warming map as the drop generators that are to receive the warming pulses.
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公开(公告)号：US20180111370A1
公开(公告)日：2018-04-26
申请号：US15724521
申请日：2017-10-04
发明人： Yosuke Miura , Keiji Tomizawa
IPC分类号： B41J2/045
CPC分类号： B41J2/04591 , B41J2/04541 , B41J2/0455 , B41J2/04563 , B41J2/04568 , B41J2/0458 , B41J2/04586 , B41J2/04598
摘要： A printing apparatus comprises: a plurality of printing elements; driving circuits that have at least one source follower transistor and correspond to each of the plurality of printing elements; and a control unit configured to, in a case where a number of printing elements driven simultaneously does not exceed a predetermined number, perform a first control for driving the at least one source follower transistor by a fixed pulse width irrespective of the number of printing elements driven simultaneously, and, in a case where the number of printing elements driven simultaneously exceed the predetermined number, perform a second control for changing a pulse width to drive the at least one source follower transistor based on the number of printing elements driven simultaneously.
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公开(公告)号：US09796175B2
公开(公告)日：2017-10-24
申请号：US15398024
申请日：2017-01-04
申请人： Océ Holding B.V.
发明人： Timo Sponer , Martin Wilhelm
IPC分类号： B41J2/045
CPC分类号： B41J2/0451 , B41J2/04536 , B41J2/04581 , B41J2/04586 , B41J2/04596 , B41J2/04598
摘要： A controller adapted for an inkjet printing system is described. The controller can include an analyzer and a prefire inserter. The analyzer can be configured to determine whether a nozzle arrangement should generate a fire pulse in a current line, and whether the last preceding fire pulse was further in the past than an interval value threshold N. The prefire inserter can be configured to insert one or more prefire pulses into the N lines before the current line.
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5.发明授权公开(公告)号：US09555629B2
公开(公告)日：2017-01-31
申请号：US14697548
申请日：2015-04-27
IPC分类号： B41J2/045
CPC分类号： B41J2/04598 , B41J2/0452 , B41J2/04541 , B41J2/04543 , B41J2/04573 , B41J2/0458
摘要： A liquid discharge substrate according to an embodiment of the present invention includes a plurality of heating elements, a plurality of driving elements, a signal supplying unit which supplies a control signal used to control the plurality of driving elements, and a plurality of delay circuits which delay the control signal. A delay amount of a first delay circuit is different from a delay amount of a second delay circuit.
摘要翻译： 根据本发明的实施例的液体排出衬底包括多个加热元件，多个驱动元件，提供用于控制多个驱动元件的控制信号的信号提供单元和多个延迟电路， 延迟控制信号。 第一延迟电路的延迟量与第二延迟电路的延迟量不同。
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公开(公告)号：US09522531B2
公开(公告)日：2016-12-20
申请号：US14990097
申请日：2016-01-07
发明人： Shuji Otsuka , Tadashi Kiyuna , Toshifumi Asanuma
CPC分类号： B41J2/04581 , B41J2/04 , B41J2/04541 , B41J2/04548 , B41J2/0455 , B41J2/04573 , B41J2/04588 , B41J2/0459 , B41J2/04593 , B41J2/04596 , B41J2/04598
摘要： A liquid discharge apparatus includes a piezoelectric element in which a drive signal is applied and which is displaced to eject a liquid; a zeroth wire of a zeroth potential; a first wire of a first potential that is higher than the zeroth potential; a second wire of a second potential that is higher than the first potential; and a connection path selecting section that electrically connects one end of the piezoelectric element to the zeroth wire, the first wire, or the second wire in response to a voltage of a source drive signal that controls the voltage of the drive signal and a hold voltage of the piezoelectric element. Here, a first potential difference from the zeroth potential to the first potential is different from a second potential difference from the first potential to the second potential.
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公开(公告)号：US09399342B2
公开(公告)日：2016-07-26
申请号：US14850303
申请日：2015-09-10
CPC分类号： B41J2/04541 , B41J2/04548 , B41J2/0455 , B41J2/04573 , B41J2/04581 , B41J2/04588 , B41J2/0459 , B41J2/04598
摘要： A printhead provides actuation pulses for driving actuating elements from a common drive waveform via respective switching circuits, the waveform having a pre-charge ramp followed by a steeper slope. A start voltage of a leading edge of the actuation pulse is set by opening the switching circuit to decouple the common drive waveform from its actuating element part way along the pre-charge ramp. After the pre-charge ramp the actuating element is coupled again to the common drive waveform, so that the voltage across the actuating element follows the steeper slope to form the leading edge. Adjusting the timing of the decoupling adjusts the start voltage, enables trimming relative to other actuating elements. The gentle slope of the pre-charge ramp enables the precision of timing of switching to be more relaxed, so that trigger circuitry for controlling the switching circuit can be simpler, smaller, cheaper and thermally more efficient.
摘要翻译： 打印头提供用于通过相应的切换电路从公共驱动波形驱动致动元件的致动脉冲，该波形具有预充电斜坡，随后是较陡的斜率。 通过打开开关电路来设置致动脉冲的前沿的起始电压，以沿着预充电斜坡部分地将公共驱动波形与其致动元件分离。 在预充电斜坡之后，致动元件再次耦合到公共驱动波形，使得致动元件两端的电压跟随较陡的斜率以形成前沿。 调整去耦时间可调节启动电压，可以相对于其他启动元件进行修整。 预充电斜坡的平缓斜率使得切换时序的精度更加松弛，使得用于控制开关电路的触发电路可以更简单，更小，更便宜和热效率更高。
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公开(公告)号：US09381740B2
公开(公告)日：2016-07-05
申请号：US14202029
申请日：2014-03-10
CPC分类号： B41J2/04588 , B41J2/04581 , B41J2/04596 , B41J2/04598 , B41J2002/14403
摘要： In general, in one aspect, the invention features a method of driving an inkjet module having a plurality of ink jets. The method includes applying a voltage waveform to the inkjet module, the voltage waveform including a first pulse and a second pulse, activating one or more of the ink jets contemporaneously to applying the first pulse, wherein each activated ink jet ejects a fluid droplet in response to the first pulse, and activating all of the ink jets contemporaneously to applying the second pulse without ejecting a droplet.
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公开(公告)号：US09340014B2
公开(公告)日：2016-05-17
申请号：US14848840
申请日：2015-09-09
IPC分类号： B41J29/393 , B41J2/045
CPC分类号： B41J2/04588 , B41J2/04586 , B41J2/04591 , B41J2/04598
摘要： Described are a system and a method to activate an actuator for a first nozzle of a plurality of nozzles of an inkjet printing system. The inkjet printer system can be configured to generate triggers with a frequency for printing of a respective line of pixels by the plurality of nozzles. The frequency of the triggers can depend on a print speed of the inkjet printing system, and the print speed can be modifiable. A time period between two successive triggers can correspond to a total duration available to the first nozzle for an ink firing for printing of a pixel of the line. An indicator for a current print speed of the inkjet printing system can be determined. Depending on the indicator for the current print speed, a waveform for activation of an actuator can be defined to produce an ink firing for printing of the pixel of the line on the recording medium by the first nozzle within the total duration available at the current print speed. The waveform can be defined such that, depending on the indicator for the current print speed within the total duration available at the current print speed, the waveform includes: a prefire portion for excitation of a meniscus of the first nozzle without firing the ink droplet, and a fire portion for firing the ink droplet from the first nozzle.
摘要翻译： 描述了一种用于激活喷墨打印系统的多个喷嘴中的第一喷嘴的致动器的系统和方法。 喷墨打印机系统可以被配置为产生具有用于通过多个喷嘴打印各行像素的频率的触发。 触发器的频率可以取决于喷墨打印系统的打印速度，并且打印速度可以是可修改的。 两个连续触发器之间的时间段可以对应于用于打印线的像素的墨点火的第一喷嘴可用的总持续时间。 可以确定喷墨打印系统的当前打印速度的指示器。 根据当前打印速度的指示器，可以定义用于激活致动器的波形，以产生用于在当前打印可用的总持续时间内通过第一喷嘴在记录介质上打印线的像素的油墨点火 速度。 可以定义波形，使得根据当前打印速度在当前打印速度下可用的总持续时间内的当前打印速度的指示符，波形包括：用于激发第一喷嘴的弯液面而不点燃墨滴的预先部分， 以及用于从第一喷嘴烧制墨滴的火焰部分。
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10.发明申请公开(公告)号：US20160121605A1
公开(公告)日：2016-05-05
申请号：US14994396
申请日：2016-01-13
申请人： FUJIFILM CORPORATION
发明人： Baku NISHIKAWA
IPC分类号： B41J2/045
CPC分类号： B41J2/04541 , B41J2/04581 , B41J2/04586 , B41J2/04588 , B41J2/04596 , B41J2/04598 , B41J2/14233 , B41J2/155 , B41J2002/14459
摘要： A drive apparatus for a liquid ejection head, includes a drive signal generating device for generating a drive signal to operate an ejection energy generating element provided so as to correspond to a nozzle of the liquid ejection head, the drive signal being supplied to the ejection energy generating element so that a liquid droplet is caused to be ejected from the nozzle, wherein: the drive signal includes a plurality of ejection pulses for performing a plurality of ejection operations during one recording period, in a remaining pulse sequence excluding a final pulse of the plurality of ejection pulses, a voltage amplitude of a subsequent pulse is smaller than a voltage amplitude of a preceding pulse, and the final pulse has a largest voltage amplitude, of the plurality of ejection pulses.
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