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1.发明授权
公开(公告)号：US4562446A
公开(公告)日：1985-12-31
申请号：US592573
申请日：1984-03-23
摘要： An ink-dot printer comprises a magnetic ink storage tank storing magnetic ink, a pair of pole plates facing each other so as to define a slit one end portion of which is contacted with the magnetic ink supplied from the magnetic ink storage tank, an electromagnet for magnetizing the pole plates, thereby feeding the magnetic ink from the magnetic ink storage tank into the slit to form a magnetic ink curtain in the slit, and a plurality of needles arranged adjacent to one another along the longitudinal direction of the slit and adapted selectively to move in the longitudinal direction thereof between a first position where one end portion of each needle is immersed in the magnetic ink curtain in the slit and a second position where the one end portion is projected from the magnetic ink curtain in the slit, the cross-sectional area of the one end portion of each needle being made to narrower than that of the remaining portion of the needle so that the distance between the one end portions of any two adjacent needles is widened to prevent the magnetic ink from being retained between the portions adjacent to the end faces of the one end portions by surface tension when the two needles are simultaneously located in the second position.
摘要翻译： 一个墨点打印机包括一个存储磁性墨水的磁性墨水储存器，一对彼此相对的极板，以便限定一个狭缝，一个端部与从磁性墨水储存箱供应的磁性墨水接触，一个电磁铁 用于磁化极板，从而将磁性墨水从磁性墨水储存器供给到狭缝中以在狭缝中形成磁性墨水窗帘，并且沿着狭缝的纵向方向彼此相邻布置的多个针，并且选择性地适应 在每个针的一个端部浸入狭缝中的磁性墨水窗帘的第一位置和一个端部从狭缝中的磁性墨水窗口突出的第二位置之间沿其纵向方向移动， 每个针的一个端部的部分区域被制成比针的剩余部分的狭窄部分，使得一个端部 任何两个相邻的针被加宽以防止当两个针同时位于第二位置时，磁性油墨通过表面张力保持在与一个端部的端面相邻的部分之间。
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公开(公告)号：US4696589A
公开(公告)日：1987-09-29
申请号：US789618
申请日：1985-10-21
申请人： Shigeru Okuno , Yoshihiro Torisawa , Mitsuharu Endo , Tetsuroh Nakayama , Masashi Shimosato , Takafumi Fukushima
发明人： Shigeru Okuno , Yoshihiro Torisawa , Mitsuharu Endo , Tetsuroh Nakayama , Masashi Shimosato , Takafumi Fukushima
摘要： An ink-dot printer comprises a pair of slit forming members arranged to define a slit therebetween, an ink tank for storing ink in which the slit is immersed, a recording sheet opposed to the slit, a needle movable between a rest position and a projected position, a driving mechanism for moving the needle between the two positions, and an ink attracting unit for generating a magnetic or electric field in the slit, thereby attracting the ink from the ink tank into the slit to cause the ink to attach to the distal end portion of the needle located in the rest position, the ink attracting unit being adapted to generate an ink attracting magnetic or electric force of a necessary intensity for the ink to be attracted from the ink tank into the slit at the time of ink attraction, and to generate an ink holding magnetic or electric field of a minimum necessary intensity for a predetermined amount of ink to be held in the slit after the predetermined amount of ink is attracted into the slit, wherein the ink attaching to the distal end portion at the rest position is moved to the recording sheet to form an ink dot thereon as the needle moves to approach the recording sheet in a projected position.
摘要翻译： 一种墨点打印机，包括：一对间隙形成部件，其间形成有狭缝;油墨槽，用于储存狭缝浸渍的油墨;与该狭缝相对的记录纸;可在静止位置和投影位置之间移动的针 位置，用于在两个位置之间移动针的驱动机构和用于在狭缝中产生磁场或电场的吸墨单元，从而将墨从墨槽吸入狭缝中，以使墨附着到远端 该针位于静止位置的端部，吸墨单元适于产生墨水吸引具有必要强度的油墨的墨水，以便在墨水吸引时将墨水从墨水盒吸入狭缝中， 并且在预定量的墨水被吸引到狭缝中之后，产生保持在狭缝中的预定量的墨水所需的最小强度的墨水或电场，w 这里，在静止位置处连接到远端部分的墨水在移动时在突出位置移动到记录片材上以在其上移动以接近记录片材。
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公开(公告)号：US4749292A
公开(公告)日：1988-06-07
申请号：US788348
申请日：1985-10-17
申请人： Shigeru Okuno , Yoshihiro Torisawa , Mitsuharu Endo , Tetsuroh Nakayama , Masashi Shimosato , Takafumi Fukushima
发明人： Shigeru Okuno , Yoshihiro Torisawa , Mitsuharu Endo , Tetsuroh Nakayama , Masashi Shimosato , Takafumi Fukushima
摘要： An ink dot printer comprises a recording sheet, at least one needle made of an electrically conductive material and located in one side of the recording sheet so as to move between a normal position remote from the recording sheet and a projected position close to the recording sheet, a drive mechanism for displacing the needle between the normal position and the projected position, an ink supply mechanism for supplying and attaching ink to the tip of the needle which faces the recording paper when the needle is in the normal position, an electrode disposed on another side of the recording mechanism and facing the tip of the needle, and an electric field generating mechanism for generating, between the electrode and needle, an electric field of such intensity as to cause ink to fly from the tip of the needle, when the needle is closer to the recording sheet than the normal position, toward the recording sheet to thereby form an ink dot on the recording sheet.
摘要翻译： 墨点打印机包括记录纸，由导电材料制成的至少一个针并位于记录纸的一侧，以便在远离记录纸的正常位置和靠近记录纸张的突出位置之间移动 ，用于使针在正常位置和突出位置之间移动的驱动机构，用于在针处于正常位置时向针头提供并附着墨的墨供给机构，电极设置在 记录机构的另一面并且面向针尖，以及电场产生机构，用于在电极和针之间产生如下强度的电场，从而使得墨从针的尖端飞出， 针比正常位置更靠近记录纸，朝向记录纸，从而在记录纸上形成墨点。
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公开(公告)号：US4552469A
公开(公告)日：1985-11-12
申请号：US617368
申请日：1984-06-05
摘要： An ink dot printer comprises: an ink tank storing magnetic ink; a pair of magnetic pole plates arranged opposite to each other to form a slit whose one end is immersed in the magnetic ink in the ink tank; an electromagnet magnetizing the paired magnetic pole plates to introduce the magnetic ink in the ink tank into the slit to form a magnetic ink film therein; a plurality of needles arranged adjacent to one another along the longitudinal direction of the slit where each is freely movable in its longitudinal direction between a first position where its one end portion is immersed in the magnetic ink film in the slit and a second position where its one end portion is projected from the magnetic ink film in the slit; electromagnets for selectively driving the needles to move from the first position to the second position; and stoppers which collide with the needles in the course of their moving from the first position to stop the needles at the second position; wherein the driving force produced in the electromagnets is so set that the magnetic ink is flied from the end faces of the one end portions of the needles onto a recording paper thanks to an inertia of the magnetic ink on the end faces of the one end portions of the needles which is caused by the collision of the needles with the stoppers.
摘要翻译： 墨点打印机包括：储存磁性墨水的墨盒; 一对磁极板，彼此相对布置以形成其一端浸入墨水盒中的磁性墨水中的狭缝; 电磁体磁化成对的磁极板，以将墨水中的磁性墨水引入狭缝中以在其中形成磁性墨膜; 多个针沿着狭缝的纵向方向彼此相邻布置，其中每个可以在其一个端部部分浸入狭缝中的磁性墨膜中的第一位置和其第二位置之间沿纵向方向自由移动， 一个端部从狭缝中的磁性墨膜突出; 用于选择性地驱动针从第一位置移动到第二位置的电磁体; 以及在其从第一位置移动过程中与针碰撞的塞子，以在第二位置止动针头; 其特征在于，电磁铁中产生的驱动力被设定为使得磁性墨水从针的一个端部的端面飞到记录纸上，这是由于在一个端部的端面上的磁性墨水的惯性 由针头与塞子的碰撞引起的针头。
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公开(公告)号：US4913568A
公开(公告)日：1990-04-03
申请号：US245324
申请日：1988-09-16
申请人： Yoshihiro Torisawa
发明人： Yoshihiro Torisawa
IPC分类号： B41J2/305
CPC分类号： B41J2/305
摘要： A dot printer wherein a film of magnetic ink is formed in a slit shaped between a pair of magnetic poles, and needles piercing through the ink film thus formed are driven to deposit the magnetic ink on a recording paper so as to print dots thereon. The tips of the needles in an undriven state are positioned in the ink film proximately to one surface thereof adjacent to the recording paper, so that an adequate amount of the magnetic ink is deposited on the paper to eventually attain clear printing.
摘要翻译： 一种点式打印机，其中磁性墨水的膜形成在一对形成在一对磁极之间的狭缝中，并且穿过如此形成的墨膜的针被驱动以将磁性墨水沉积在记录纸上，以便在其上印刷点。 处于未驱逐状态的针的尖端位于墨膜附近的与记录纸相邻的一个表面上，使得足够量的磁性墨水沉积在纸上以最终获得清晰的印刷。
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公开(公告)号：US4599629A
公开(公告)日：1986-07-08
申请号：US617360
申请日：1984-06-05
摘要： An ink dot printer includes an ink tank for storing magnetic ink, a pair of magnetic pole plates arranged opposite to each other to form a slit, one end of the pair of plates being immersed in the magnetic ink in the ink tank. An electromagnet magnetizes the paired magnetic pole plates to introduce the magnetic ink in the ink tank into the slit to form a magnetic ink film therein, and a plurality of needles arranged adjacent to one another in the longitudinal direction of the slit are each freely movable in the longitudinal direction of the needle between a first position where its one end portion is immersed in the magnetic ink film in the slit between the paired magnetic pole plates and a second position where its one end portion is projected from the magnetic ink film in the slit. An electromagnet selectively drives the needles to move them from the first to the second position, and a variable resistance controls the strength of magnetic force generated by the electromagnet by controlling the voltage supplied to the electromagnet. Magnetic ink, which has been stuck to the one ends of the needles at the first position, is forced onto a recording paper at the second position to form dots of magnetic ink of controlled density. By the gathering of the dots, symbols such as characters and numerals are printed.
摘要翻译： 墨点打印机包括用于存储磁墨的墨盒，一对彼此相对布置以形成狭缝的磁极板，一对板的一端浸入墨盒中的磁墨中。 电磁体磁化成对的磁极板，将墨水容器内的墨水引入狭缝，在其中形成磁性墨膜，并且在狭缝的长度方向上彼此相邻布置的多个针各自可自由移动 所述针的纵向方向在其一端浸渍在所述一对磁极板之间的狭缝中的所述磁性墨膜中的第一位置和其一个端部从所述狭缝中的所述磁性墨膜突出的第二位置 。 电磁铁选择性地驱动针将其从第一位置移动到第二位置，并且可变电阻通过控制提供给电磁体的电压来控制由电磁体产生的磁力的强度。 在第一位置被粘在针的一端的磁性墨在第二位置被压在记录纸上，形成受控密度的墨墨点。 通过点的聚集，打印诸如字符和数字的符号。
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7.发明授权
公开(公告)号：US5119139A
公开(公告)日：1992-06-02
申请号：US454459
申请日：1989-12-21
申请人： Yoshihiro Torisawa
发明人： Yoshihiro Torisawa
CPC分类号： G03G15/1695 , G03G15/0131
摘要： In the image forming apparatus of the present invention, printing stations are provided in positions opposed to an endless paper conveying belt, and an electric charger is disposed close to a conveyance roller and on a downstream side of the conveyance roller with respect to a conveyance direction, which conveyance roller is disposed in a conveyance start position of the paper conveying belt, to maintain the surface potential of each recording paper in good condition, whereby it is made possible to prevent the deterioration of the image quality, diminish the power consumption and attain a reduction in size of the apparatus.
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公开(公告)号：US4776712A
公开(公告)日：1988-10-11
申请号：US789619
申请日：1985-10-21
申请人： Shigeru Okuno , Yoshihiro Torisawa , Mitsuharu Endo , Tetsuroh Nakayama , Masashi Shimosato , Takafumi Fukushima
发明人： Shigeru Okuno , Yoshihiro Torisawa , Mitsuharu Endo , Tetsuroh Nakayama , Masashi Shimosato , Takafumi Fukushima
摘要： An ink-dot printer comprises a recording paper, at least one needle disposed in one side the recording paper and movable between a rest position remote from the recording paper and a projected position close to the recording paper, a driving mechanism for moving the needle between the rest position and the projected position, a driving control unit electrically connected to the driving mechanism so as to supply a driving control signal for controlling the movement of the needle to the driving mechanism, an ink supply mechanism adapted to supply ink to the distal end portion of the needle on the recording sheet side so that the ink attaches to the distal end portion when the needle is located in the rest position, an electrode disposed in another side of the recording paper and facing the distal end portion of the needle, and voltage control unit for applying between the needle and the electrode an ink flying voltage with respect to the supply of the driving control signal from the driving control unit to the driving mechanism the ink flying voltage generating between the needle and the electrode an ink flying electric field of an intensity such that the ink is drawn from the distal end portion of the needle to the recording paper to form an ink dot on the recording paper as the needle closes to the electrode than in the rest position.
摘要翻译： 一种墨点打印机包括记录纸，至少一个针设置在记录纸的一侧，并且可在远离记录纸的静止位置和靠近记录纸的突出位置之间移动;驱动机构，用于在针 静止位置和突出位置，驱动控制单元，其电连接到驱动机构，以便提供用于控制针头到驱动机构的运动的驱动控制信号;墨水供应机构，适于向远端供应墨水 针在记录纸侧的部分，使得当针位于静止位置时，油墨附着到远端部，设置在记录纸的另一侧并面向针的前端部的电极，以及 电压控制单元，用于在针和电极之间施加相对于来自驱动器的驱动控制信号的供给的喷墨电压 所述驱动机构在所述针和所述电极之间产生墨水飞溅电压，所述墨水飞溅电场的强度使得所述墨从所述针的远端部分被拉出到所述记录纸上以形成墨点 作为针的记录纸比静止位置靠近电极。
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公开(公告)号：US4646111A
公开(公告)日：1987-02-24
申请号：US842279
申请日：1986-03-21
IPC分类号： B41J2/06 , B41J2/13 , B41J25/316 , G01D15/16
CPC分类号： B41J25/316 , B41J2/06 , B41J2002/061
摘要： An ink dot printer comprising an opposite electrode, a carriage capable of reciprocating along the opposite electrode, a printing head mounted on the carriage, recording electrodes arranged within the printing head so that the tips thereof can be exposed through openings formed in a wall of the printing head opposite the opposite electrode, and a cap supported moveably on either the carriage or the printing head so as to close or open the openings of the printing head. When the ink dot printer is not in printing operation, the cap is closed to cover up the tips of the recording electrodes to prevent the drying of the tips of the recording electrode due to the evaporation of the ink so that the recording electrodes are always in good condition for stable printing operation.
摘要翻译： 一种墨点打印机，包括相对电极，能够沿着相对电极往复运动的滑架，安装在滑架上的打印头，布置在打印头内的记录电极，使得其顶端可以通过形成在 打印头与相对电极相对，以及可移动地支撑在托架或打印头上的盖，以封闭或打开打印头的开口。 当墨点打印机不在打印操作中时，盖被关闭以覆盖记录电极的尖端，以防止由于墨的蒸发导致的记录电极的尖端的干燥，使得记录电极总是在 良好的打印操作条件。
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