Composite ink jet drivers
    31.
    发明授权
    Composite ink jet drivers 失效
    复合喷墨驱动器

    公开(公告)号:US4449134A

    公开(公告)日:1984-05-15

    申请号:US369683

    申请日:1982-04-19

    摘要: An ink jet droplet exciter for generating pressure waves in a droplet generator. The preferred exciter is a composite made of PZT, Pb (Zr:Ti) O.sub.3, and a polyethylene supporting material. The mean diameter of the PZT particles is 7 mils and the entire exciter thickness is between 10 and 12 mils. The composite is pliable and can be made in sheets of a large enough area to provide droplet excitation for a multiple nozzle generator.

    摘要翻译: 一种用于在液滴发生器中产生压力波的喷墨液滴激励器。 优选的激发器是由PZT,Pb(Zr:Ti)O 3和聚乙烯支撑材料制成的复合材料。 PZT颗粒的平均直径为7密耳,整个激发器厚度为10至12密耳。 复合材料是柔韧的,并且可以制成足够大的区域的片材以为多个喷嘴发生器提供液滴激励。

    Thin body ink drop generator
    32.
    发明授权
    Thin body ink drop generator 失效
    薄体墨滴发生器

    公开(公告)号:US4370663A

    公开(公告)日:1983-01-25

    申请号:US212646

    申请日:1980-12-03

    申请人: Roger G. Markham

    发明人: Roger G. Markham

    CPC分类号: B41J2/03 B41J2/155 Y10S310/80

    摘要: A continuous liquid drop generator and a printing system employing it are disclosed. The generator includes a thin cavity which contains liquid under pressure. The liquid is emitted through a nozzle as a liquid column from which drops are formed. The liquid in the cavity is acoustically stimulated by a thin, flexible piezoelectric exciter. Polyvinylidene fluoride (PVF.sub.2) is one piezoelectric material disclosed. The thin body generator includes a transmission plate or block between a backing plate and a nozzle plate. The transmission plate chemically protects the exciter and provides space for an infeed conduit that couples a liquid to the thin cavity. The generator design is especially suited for multiple-nozzle drop generators. One printing system disclosed employs a multiple nozzle generator with each nozzle addressing drops to multiple pixels within a segment of a scan line. Collectively, the drop streams emitted from the multiple nozzles are able to compose a full scan line on a target. The target moves relative to the drop generator.

    摘要翻译: 公开了一种连续液滴发生器和采用它的印刷系统。 该发生器包括在压力下包含液体的薄腔。 液体通过作为液滴的喷嘴喷射,从其形成液滴。 空腔中的液体由薄而柔性的压电激励器进行声学刺激。 聚偏氟乙烯(PVF2)是一种压电材料。 薄体发生器包括在背板和喷嘴板之间的传动板或块。 传动板化学地保护激励器,并为将液体连接到薄腔的进料管道提供空间。 发电机设计特别适用于多喷嘴液滴发生器。 所公开的一种打印系统使用多个喷嘴发生器,每个喷嘴寻址下降到扫描线的段内的多个像素。 总的来说,从多个喷嘴发出的液滴流能够在目标上组成完整的扫描线。 目标相对于液滴发生器移动。

    Ink jet system printer including plural ink droplet issuance units for
one column printing
    33.
    发明授权
    Ink jet system printer including plural ink droplet issuance units for one column printing 失效
    喷墨系统打印机包括用于一列打印的多个墨滴发行单元

    公开(公告)号:US4210919A

    公开(公告)日:1980-07-01

    申请号:US886597

    申请日:1978-03-14

    申请人: Masahiko Aiba

    发明人: Masahiko Aiba

    IPC分类号: B41J2/03 B41J2/15 G01D15/18

    CPC分类号: B41J2/15 B41J2/03 G01D15/18

    摘要: A plurality of ink droplet issuance units are provided for emitting plural streams of ink droplets toward a record receiving paper. The ink droplets in the respective streams are charged by a bi-valued signal through the use of a plurality of charging means in accordance with print information. The ink droplets charged by one value of the bi-valued signal are deflected as they pass through a deflection means and deposited on the record receiving paper. The ink droplets charged by the other value of the bi-valued signal are directed to a beam gutter and not deposited on the record receiving paper. In this way, one column of a dot matrix pattern is printed at a time utilizing plural streams of ink droplets.

    摘要翻译: 提供了多个墨滴发布单元,用于向记录接收纸发射多个墨滴流。 根据打印信息,通过使用多个充电装置通过双值信号对相应流中的墨滴进行充电。 由双值信号的一个值充电的墨滴在穿过偏转装置并被偏移到记录接收纸上时被偏转。 通过双值信号的另一个值充电的墨滴被引导到光束槽并且不沉积在记录接收纸上。 以这种方式,利用多个墨滴流一次打印一列点阵图案。

    Apparatus and method for generation of drops using bending waves
    34.
    发明授权
    Apparatus and method for generation of drops using bending waves 失效
    使用弯曲波形生成液滴的装置和方法

    公开(公告)号:US3739393A

    公开(公告)日:1973-06-12

    申请号:US3739393D

    申请日:1971-10-14

    申请人: MEAD CORP

    发明人: LYON R ROBERTSON J

    摘要: Apparatus and method for generating drops in a continuous falling curtain by controlled stimulation of a set of fluid streams. The streams are formed by forcing a working fluid under pressure through a set of orifices in an orifice plate, and are stimulated to produce drops by propagating a series of bending waves down the length of the plate. It is shown that this method of stimulation provides regulation of the phase and amplitude of applied stimulation energy and accurately controls the filament length of all streams. There is also disclosed an improved jet drop recording apparatus wherein graphic printing quality is greatly improved by travelling wave stimulation of a set of digitally switched jets.

    摘要翻译: 通过一组流体流的受控刺激在连续落幕中产生液滴的装置和方法。 通过在压力下迫使工作流体通过孔板中的一组孔而形成流,并且通过在板的长度上传播一系列弯曲波而被刺激以产生液滴。 显示出这种刺激方法可以调节施加的刺激能量的相位和幅度,并精确控制所有流的细丝长度。 还公开了一种改进的喷墨滴记录装置,其中通过一组数字切换喷嘴的行波刺激极大地改善了图形打印质量。

    Microfluidic device for continuous ejection of fluids, in particular for ink printing, and related manufacturing process

    公开(公告)号:US12023919B2

    公开(公告)日:2024-07-02

    申请号:US18064829

    申请日:2022-12-12

    摘要: A microfluidic device for continuous ejection of fluids includes: a semiconductor body that laterally delimits chambers; an intermediate structure which forms membranes each delimiting a top of a corresponding chamber; and a nozzle body which overlies the intermediate structure. The device includes, for each chamber: a corresponding piezoelectric actuator; a supply channel which traverses the intermediate structure and communicates with the chamber; and a nozzle which traverses the nozzle body and communicates with the supply channel. Each actuator is configured to operate i) in a resting condition such that the pressure of a fluid within the corresponding chamber causes the fluid to pass through the supply channel and become ejected from the nozzle as a continuous stream, and ii) in an active condition, where it causes a deformation of the corresponding membrane and a consequent variation of the pressure of the fluid, causing a temporary interruption of the continuous stream.

    Sealing member, method of manufacturing the same, pressure adjustment mechanism, liquid ejection head, and liquid ejection apparatus

    公开(公告)号:US11613130B2

    公开(公告)日:2023-03-28

    申请号:US17410844

    申请日:2021-08-24

    IPC分类号: B41J2/175 B41J2/18 B41J2/03

    摘要: Provided is a sealing member to be used as a valve in a pressure adjustment mechanism. The sealing member includes a base member having high strength, and has high reliability. The sealing member includes an elastic member (valve portion) having an annular abutment portion (valve distal end portion) formed as an annular protrusion and the base member (lever portion). When a held portion having a tubular shape extending from the annular abutment portion is held in an annular groove formed in the base member, the elastic member is fixed to the base member. A holding length over which an annular groove holds the held portion along a depth direction of the base member is set longer than a width of the annular groove.

    Digital printing system with flexible intermediate transfer member

    公开(公告)号:US11548275B2

    公开(公告)日:2023-01-10

    申请号:US17221817

    申请日:2021-04-04

    摘要: Methods for printing using printing systems comprising a flexible intermediate transfer member (ITM) disposed around a plurality of guide rollers at which encoders are installed, and an image-forming station at which ink images are formed by droplet deposition by print bars onto the ITM, can include measuring a local velocity of the ITM under one of the print bars, determining a stretch factor for a portion of the ITM based on a relationship between an estimated stretched length fixed physical distance between print bars, controlling an ink deposition parameter according to the stretch factor so as to compensate for stretching of the reference portion of the ITM.

    Microfluidic device for continuous ejection of fluids, in particular for ink printing, and related manufacturing process

    公开(公告)号:US11541653B2

    公开(公告)日:2023-01-03

    申请号:US16882215

    申请日:2020-05-22

    摘要: A microfluidic device for continuous ejection of fluids includes: a semiconductor body that laterally delimits chambers; an intermediate structure which forms membranes each delimiting a top of a corresponding chamber; and a nozzle body which overlies the intermediate structure. The device includes, for each chamber: a corresponding piezoelectric actuator; a supply channel which traverses the intermediate structure and communicates with the chamber; and a nozzle which traverses the nozzle body and communicates with the supply channel. Each actuator is configured to operate i) in a resting condition such that the pressure of a fluid within the corresponding chamber causes the fluid to pass through the supply channel and become ejected from the nozzle as a continuous stream, and ii) in an active condition, where it causes a deformation of the corresponding membrane and a consequent variation of the pressure of the fluid, causing a temporary interruption of the continuous stream.