公开(公告)号：US4536776A

公开(公告)日：1985-08-20

申请号：US431279

申请日：1982-09-30

申请人： Franco Knirsch ,  Giovanni Gianolini ,  Gian D. Dagna ,  Mario Buat

发明人： Franco Knirsch ,  Giovanni Gianolini ,  Gian D. Dagna ,  Mario Buat

IPC分类号： B41J2/06 ,  B41J2/175 ,  B41J2/21 ,  C09D11/00 ,  G01D15/18

CPC分类号： C09D11/38 ,  B41J2/06 ,  B41J2/175

摘要： The device comprises a plurality of ink reservoirs, each connected to a number of nozzles (22) equidistant along a corresponding row. The nozzles connected to the various reservoirs are spaced apart vertically by at least one line space. The device can be used for printing different lines in parallel, moreover subdividing the length of the line, or for printing different zones of the sheet in facsimile. The ink is kept in circulation between the reservoirs and the nozzles by a common peristaltic pump which acts by a series of actuating elements on the discharge ducts for the inks in the reservoirs. The reservoirs may contain inks of different colors to permit printing in different colors or polychrome facsimile printing by additive or subtractive synthesis of the colors. The ink is conductive and is kept at earth potential, while electrodes (23) disposed outside the corresponding nozzles (22) are energized selectively to produce sprays of particles of ink from the nozzles. The ink contains a mixture of a dye of direct or solvent or acid type with a solution of water, electrolytic compounds, moistening agents, thickeners, preserving agents and antifoaming agent. The ink is prepared by mixing the compounds under agitation, then mixing in the dye until a predetermined acidity is obtained and finally filtering it and sealing it in the pack in the absence of air.

摘要翻译： 该装置包括多个墨水储存器，每个墨水容器连接到沿着相应行等距离的多个喷嘴（22）。 连接到各个储存器的喷嘴沿垂直方向间隔至少一个线空间。 该装置可以用于平行地印刷不同的线，而且还可以划分线的长度，或者以传真方式印刷片的不同区域。 墨水通过普通的蠕动泵保持在储存器和喷嘴之间的循环中，该蠕动泵由用于储存器中的油墨的排放管道上的一系列致动元件起作用。 储存器可以包含不同颜色的油墨，以允许通过添加或减色合成颜色以不同颜色或多色传真打印印刷。 油墨是导电的并且保持在地电位，而设置在对应喷嘴（22）外部的电极（23）被选择性地激励以从喷嘴产生喷墨颗粒。 油墨含有直接或溶剂或酸型染料与水，电解化合物，润湿剂，增稠剂，防腐剂和消泡剂的溶液的混合物。 通过在搅拌下混合化合物，然后在染料中混合直到获得预定的酸度并最终过滤并在没有空气的情况下将其密封在包装中来制备油墨。

公开(公告)号：US4503443A

公开(公告)日：1985-03-05

申请号：US452846

申请日：1982-12-23

申请人： Gian D. Dagna ,  Mario Buat

发明人： Gian D. Dagna ,  Mario Buat

IPC分类号： B41J2/06 ,  B41J2/175 ,  G01D15/16

CPC分类号： B41J2/1752 ,  B41J2/17513

摘要： The head is provided for a conducting ink and comprises a closed container (14) carrying two electrodes and a nozzle (18). The head is removably mounted on a carriage (13) and is replaced when the ink is exhausted.The container (14) is divided into two cavities (71 and 72) which are in communication by way of an aperture (73, 74, 75) in order to cause ink to flow to the nozzle and to remove bubbles. To ensure that the bubbles do not cause an increase in the pressure in the container, causing the ink to discharge from the nozzle, the container comprises an expansible cavity formed by a bag-type diaphragm (83) and a compression spring (82) which tends to cause expansion of the cavity.The container is filled with ink, while holding the spring in a compressed condition. As the ink decreases, the spring expands, maintaining a slight depression within the container.

摘要翻译： 头部设置用于导电油墨，并且包括承载两个电极的密闭容器（14）和喷嘴（18）。 头部可拆卸地安装在托架（13）上，并且当墨水被排出时被更换。 容器（14）被分成两个通过孔（73,74,75）连通的空腔（71和72），以使墨水流到喷嘴并除去气泡。 为了确保气泡不会导致容器中的压力增加，导致墨水从喷嘴排出，容器包括由袋式隔膜（83）和压缩弹簧（82）形成的可膨胀空腔，压缩弹簧 倾向于引起腔的扩张。 容器中充满墨水，同时将弹簧保持在压缩状态。 当墨水减少时，弹簧膨胀，保持在容器内的轻微凹陷。

公开(公告)号：US4502054A

公开(公告)日：1985-02-26

申请号：US392664

申请日：1982-06-28

申请人： Riccardo Brescia ,  Mario Buat ,  Giandomenico Dagna ,  Alessandro Scardovi

发明人： Riccardo Brescia ,  Mario Buat ,  Giandomenico Dagna ,  Alessandro Scardovi

IPC分类号： B41J2/05 ,  B41J2/065 ,  B41J2/175 ,  G01D15/18

CPC分类号： B41J2/065

摘要： The device comprises a printing head (15) constituted by an insulating container (19) with a capillary nozzle (36). The electrically conductive ink is kept under circulation in the container via a feed tube (26, 23) and a return tube (27, 24) leading to a suction pump, in order to allow the formation of a convex meniscus at the exit aperture of the nozzle (36) and eliminate any vapor bubbles. A pulse generator creates a voltage of a predetermined value and duration between an electrode (37) external to the nozzle and an electrode (23) in contact with the ink, in order to create a state of excitation of the meniscus and partial vaporization of a layer of ink, such as to expel a plurality of ink particles. The head is mounted on a carriage movable transversely to the paper, which advances at each stroke reversal of the head.

摘要翻译： 该装置包括由具有毛细管喷嘴（36）的绝热容器（19）构成的打印头（15）。 导电油墨经由供给管（26,23）和通向抽吸泵的返回管（27,24）在容器中保持循环，以便允许在出口孔处形成凸起的弯液面 喷嘴（36）并消除任何蒸气泡。 脉冲发生器产生在喷嘴外部的电极（37）和与墨水接触的电极（23）之间的预定值和持续时间的电压，以便产生弯液面的激发状态和部分蒸发的状态 油墨层，例如排出多个油墨颗粒。 头部安装在横向于纸张移动的托架上，其在头部的每次行程反转时前进。

公开(公告)号：US5119115A

公开(公告)日：1992-06-02

申请号：US542908

申请日：1990-06-25

申请人： Mario Buat ,  Renato Conta ,  Adriano Fetta

发明人： Mario Buat ,  Renato Conta ,  Adriano Fetta

IPC分类号： B41J2/05 ,  B41J2/175

CPC分类号： B41J2/1752 ,  B41J2/17513

摘要： In a thermal ink jet print head the ink is expelled in the form of small drops through a plurality of nozzles communicating with corresponding expulsion chambers for expulsion of the ink through the effect of rapid heating of heater elements contained in the expulsion chambers. The nozzles, the expulsion chambers, the heater elements and the associated electrical conductors are constructed in a plurality of metal layers and insulating layers supported by a silicon plate. The plate is fixed to the structure of the head and is supplied with ink contained in a movable cartridge fitted to the structure of the head. The cartridge comprises a rigid reservoir containing a sponge saturated with ink which can be hydraulically connected to the head by means of a needle-type conduit mounted on the head and which perforates a rubber membrane of the cartridge. During the periods of storage and inactivity of the head, the cartridge is removed, permitting drying of the nozzles to avoid possible nozzle blockages and corrosion of the layers of the plate by the ink.

公开(公告)号：US4432003A

公开(公告)日：1984-02-14

申请号：US313226

申请日：1981-10-20

申请人： Aquilino Barbero ,  Mario Buat

发明人： Aquilino Barbero ,  Mario Buat

IPC分类号： B41J2/01 ,  B41J2/05 ,  B41J2/06 ,  B41J2/155 ,  G01D15/16

CPC分类号： B41J2/06 ,  B41J2/155 ,  B41J2202/12

摘要： The device comprises an electrically insulating ink container containing one electrode and a counter-electrode disposed adjacent to the jet nozzle which is laser-bored through the container cover plate. The two electrodes are excited by a voltage pulse such as to generate a spark between the ink meniscus and the counter-electrode, and to expel a plurality of ink particles, rather than a single blob. The ink can be kept in circulation between the container and a reservoir 51 by means of a pump. The meniscus can be kept outside the nozzle by means of a second nozzle coaxial to the first, or by a suitable arrangement of the ink hydraulic circuit. In the case of magnetic ink, the meniscus is pulled back by a magnetic field. The ink can also be brought in front of the nozzle by capillarity.

摘要翻译： 该装置包括电绝缘油墨容器，其包含一个电极和邻近该喷嘴设置的对置电极，其通过该容器盖板激光钻孔。 两个电极被电压脉冲激发，例如在墨水弯月面和对电极之间产生火花，并且排出多个墨颗粒而不是单个斑点。 油墨可以通过泵在容器和储存器51之间保持循环。 弯液面可以通过与第一喷嘴同轴的第二喷嘴或由油墨液压回路的适当布置而保持在喷嘴外。 在磁性墨水的情况下，弯液面被磁场拉回。 墨水也可以通过毛细管作用在喷嘴的前面。