Droplet ejecting apparatus and method for driving the same
    5.
    发明授权
    Droplet ejecting apparatus and method for driving the same 有权
    液滴喷射装置及其驱动方法

    公开(公告)号:US08845051B2

    公开(公告)日:2014-09-30

    申请号:US14095253

    申请日:2013-12-03

    IPC分类号: B41J29/38 B41J2/045

    摘要: A droplet ejecting apparatus includes a recording head including nozzles, liquid chambers communicating with the respective nozzles and storing ink, and actuators for applying pressure to the respective liquid chambers; and a print control unit configured to generate drive signals for driving the respective actuators to eject droplets from the nozzles. The drive signal includes a first contracting waveform component for ejecting a droplet and a second contracting waveform component for further contracting the liquid chamber after application of the first contracting waveform component but not ejecting a droplet. The second contracting waveform component is output at oscillation-damping timing at which a pressure wave generated by the first contracting waveform component is damped, in a condition where an environmental temperature is high, and is output at resonating timing at which resonance with the generated pressure wave occurs, in a condition where the environmental temperature is low.

    摘要翻译: 液滴喷射装置包括:记录头,包括喷嘴,与各个喷嘴连通的液体室和存储墨;以及用于向各个液体腔施加压力的致动器; 以及打印控制单元,被配置为产生用于驱动各个致动器以从喷嘴喷射液滴的驱动信号。 驱动信号包括用于喷射液滴的第一收缩波形分量和用于在施加第一收缩波形分量之后进一步收缩液体室而不喷射液滴的第二收缩波形分量。 第二收缩波形分量在环境温度高的条件下在由第一收缩波形分量产生的压力波被衰减的振荡阻尼定时输出,并且在与所产生的压力的共振的共振定时输出 在环境温度低的情况下发生波。

    Image forming apparatus including recording head for ejecting liquid droplets
    6.
    发明授权
    Image forming apparatus including recording head for ejecting liquid droplets 有权
    图像形成装置,包括用于喷射液滴的记录头

    公开(公告)号:US08777349B2

    公开(公告)日:2014-07-15

    申请号:US13421112

    申请日:2012-03-15

    IPC分类号: B41J29/38

    摘要: An image forming apparatus includes a recording head and a driving waveform generator. The recording head has a nozzle, a liquid chamber, and a pressure generator. The driving waveform generator is connected to the pressure generator to generate and output a driving waveform including a plurality of driving pulses per driving cycle to eject a droplet from the nozzle. A last one of the driving pulses includes a first expansion waveform element, a first retaining waveform element, a first contraction waveform element, a second retaining waveform element, a second contraction waveform element, a third retaining waveform element, and a second expansion waveform element. The first contraction waveform element has a potential difference greater than a potential difference of the first expansion waveform element. The second contraction waveform element has a time period longer than a time period of the first contraction waveform element.

    摘要翻译: 图像形成装置包括记录头和驱动波形发生器。 记录头具有喷嘴,液体室和压力发生器。 驱动波形发生器连接到压力发生器,以产生并输出每个驱动周期包括多个驱动脉冲的驱动波形,以从喷嘴喷出液滴。 驱动脉冲的最后一个包括第一扩展波形元件,第一保持波形元件,第一收缩波形元件,第二保持波形元件,第二收缩波形元件,第三保持波形元件和第二展开波形元件 。 第一收缩波形元件具有大于第一膨胀波形元件的电位差的电位差。 第二收缩波形元件具有比第一收缩波形元件的时间段长的时间段。

    Liquid ejection head, liquid-droplet ejection device, and image forming apparatus
    7.
    发明授权
    Liquid ejection head, liquid-droplet ejection device, and image forming apparatus 有权
    液体喷射头,液滴喷射装置和图像形成装置

    公开(公告)号:US08348407B2

    公开(公告)日:2013-01-08

    申请号:US12822522

    申请日:2010-06-24

    IPC分类号: B41J2/175

    摘要: A liquid ejection head includes nozzles, separate chambers, a common chamber, inlet portions, a filter unit, and ribs. Droplets of liquid are ejected from the nozzles. The separate chambers are communicated with the nozzles. The inlet portions are communicated with the corresponding separate chambers. Liquid is supplied from the common chamber to the separate chambers through the inlet portions. The filter unit is disposed between the inlet portions and the common chamber to filter liquid in an area across the separate chambers in a first direction in which the nozzles are arrayed. The ribs are disposed in the filter unit at intervals corresponding in size to at least two of the separate chambers in the first direction to partition the filter unit. The inlet portions are communicated in the first direction with each other in at least one portion of each of the inlet portions facing the filter unit.

    摘要翻译: 液体喷射头包括喷嘴,分离的室,公共室,入口部分,过滤器单元和肋。 液体的液滴从喷嘴喷出。 分开的室与喷嘴连通。 入口部分与相应的分开的室连通。 液体通过入口部分从公共室供应到分开的室。 过滤器单元设置在入口部分和公共室之间,以在喷嘴排列的第一方向上跨过分离的室的区域中的液体进行过滤。 这些肋沿着第一方向以与尺寸相对应的至少两个分离室的间隔设置在过滤器单元中,以分隔过滤器单元。 每个入口部分的至少一部分面向过滤器单元,入口部分在第一方向上彼此连通。

    Inkjet recording head having dynamic vibration absorber
    8.
    发明授权
    Inkjet recording head having dynamic vibration absorber 有权
    具有动态吸振器的喷墨记录头

    公开(公告)号:US07494210B2

    公开(公告)日:2009-02-24

    申请号:US11179807

    申请日:2005-07-13

    IPC分类号: B41J2/045 B41J2/17

    CPC分类号: B41J2/14233 B41J2/055

    摘要: An inkjet recording head includes a base member, an ink channel unit, a plurality of piezoelectric elements, and a dynamic vibration absorber. The ink channel unit is formed with a plurality of nozzle holes and a plurality of ink pressure chambers. The ink channel unit includes a diaphragm that defines part of each ink pressure chamber. Each piezoelectric element has one end fixed to the base member and another end attached to the diaphragm. Each piezoelectric element generates displacement in a displacement direction for deforming the diaphragm to eject ink droplets through a corresponding one of the plurality of nozzle holes. The dynamic vibration absorber is mounted on the base member for damping vibrations of the base member due to a resonance, the resonance occurring in a frequency range less than or equal to a predetermined frequency.

    摘要翻译: 喷墨记录头包括基底构件,墨水通道单元,多个压电元件和动态吸振体。 墨水通道单元形成有多个喷嘴孔和多个墨水压力室。 油墨通道单元包括限定每个墨压力室的一部分的隔膜。 每个压电元件的一端固定在基座件上,另一端固定在隔膜上。 每个压电元件在位移方向上产生位移,以使膜片变形以通过多个喷嘴孔中的相应一个喷射墨滴。 动态吸振器安装在基座构件上,用于由于共振而阻尼基座构件的振动,在小于或等于预定频率的频率范围内发生共振。

    Sample data transmission apparatus
    10.
    发明授权
    Sample data transmission apparatus 失效
    样品数据传输装置

    公开(公告)号:US5257271A

    公开(公告)日:1993-10-26

    申请号:US939406

    申请日:1992-09-01

    IPC分类号: G11B20/18 H03M13/27 H04L1/14

    CPC分类号: H03M13/2764 G11B20/1809

    摘要: In a sampled data transmitting apparatus in which the sampled data to be transmitted are divided into odd-numbered samples and even-numbered samples and arranged in different rows of a two-dimensional data array, and in which error correction codes are annexed to each row and to each column of the two-dimensional data array, the row arraying sequence in one of the odd-numbered or even-numbered rows is caused to differ from the row arraying sequence in the other of the odd-numbered or even-numbered rows so that odd-numbered data and even-numbered data continuous with the odd-numbered data are not arranged in one row. In this manner, even when error correction becomes impossible by the error correcting code for one row, interpolation remains feasible because there exist no odd-numbered data or even-numbered data contiguous to each other in the row.

    摘要翻译: 在采样数据发送装置中,将要发送的采样数据划分为奇数样本和偶数样本,并排列在二维数据阵列的不同行中,其中纠错码附于每行 并且对于二维数据阵列的每列,使奇数或偶数行之一中的行排列顺序与奇数行或偶数行中的另一行中的行排列顺序不同 使得与奇数数据连续的奇数数据和偶数数据不排列在一行中。 以这种方式,即使通过一行的纠错码不可能进行纠错,因为在该行中不存在彼此邻接的奇数数据或偶数数据,因此内插仍然是可行的。