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1. 发明授权

US4630077A Serial printhead ink supply 失效
标题翻译：串行打印头墨水供应
公开(公告)号：US4630077A
公开(公告)日：1986-12-16
申请号：US686484
申请日：1984-12-26
申请人： Pierangelo Berruti , Roberto Guelfo , Alessandro Crotti , Ennio A. Pozzo , Roberto Realis Luc
发明人： Pierangelo Berruti , Roberto Guelfo , Alessandro Crotti , Ennio A. Pozzo , Roberto Realis Luc
IPC分类号： B41J2/05 , B41J2/175 , G01D15/16
CPC分类号： B41J2/1752 , B41J2/17506 , B41J2/17513
摘要： The head (12) comprises a closed container (14) carrying two electrodes (36, 62) and a nozzle (18) and mounted removably on a carriage (13).In order for the ink (16) always to be held at atmospheric pressure, the container (14) comprises an expansible space defined by a diaphragm (67) having a portion (74) aligned with an opening (73) in the container (14).The diaphragm (67) is of butyl rubber which can be pierced with a syringe to permit the container (14) to be refilled with ink (18).The container (14) is closed by an alumina plate (32) carrying the nozzle (18) and joined to a second plate (76) parallel thereto, and of a material which can be wetted by the ink (16). The second plate (76) constitutes a wall for resisting the pressure waves of an ink jet leaving the nozzle (18), and is immediately covered by the ink again.
摘要翻译：头部（12）包括承载两个电极（36,62）和喷嘴（18）的密封容器（14），并且可移除地安装在滑架（13）上。为了使油墨（16）始终保持在大气压力下，容器（14）包括由具有与容器（14）中的开口（73）对准的部分（74）的隔膜（67）限定的可膨胀空间）。隔膜（67）是丁基橡胶，其可以用注射器刺穿以允许容器（14）用油墨（18）重新填充。容器（14）由承载喷嘴（18）的氧化铝板（32）封闭并与平行于其的第二板（76）连接，并且可被油墨（16）润湿的材料。第二板（76）构成用于抵抗离开喷嘴（18）的喷墨的压力波的壁，并且立即被油墨覆盖。

2. 发明授权

US4746937A Control apparatus for an on-demand ink jet printing element 失效
标题翻译：用于按需喷墨打印元件的控制装置
公开(公告)号：US4746937A
公开(公告)日：1988-05-24
申请号：US866246
申请日：1986-05-23
申请人： Roberto Realis Luc , Alessandro Crotti
发明人： Roberto Realis Luc , Alessandro Crotti
IPC分类号： B41J2/015 , B41J2/045 , B41J2/05 , B41J2/055 , G01D15/16
CPC分类号： B41J2/04541 , B41J2/04563 , B41J2/0458
摘要： In an ink jet printing element in which the drop is expelled by generating a current pulse through the ink in the nozzle, in order to reduce the control voltage, a first pulse (Tr) for heating the ink is generated, followed by a vaporization pulse (Tv) with a delay such as to make the printing position independent of the direction of movement of the element with respect to the paper. The heating pulse (Tr) is generated by a circuit (31) controlled by a temperature sensor (34) so that the duration of the heating pulse has a negative temperature coefficient. The vaporization pulse (Tv) is generated by a circuit (32) manually controlled (potentiometer 39) to determine the pulse duration on the basis of the desired strength of the printing. The delay between the two pulses is controlled by a delay circuit (38), e.g. a monostable circuit. The two pulses are applied to a transformer (35) which generates the voltage between the electrodes. The two circuits (31, 32) may be constituted by one monostable circuit with separate RC networks sequentially enabled for determining the durations of the heating and vaporization pulses.
摘要翻译：在喷墨打印元件中，通过在喷嘴中产生一个电流脉冲来排出液滴，为了降低控制电压，产生用于加热油墨的第一脉冲（Tr），然后产生蒸发脉冲（Tv），其延迟使得打印位置与元件相对于纸张的移动方向无关。加热脉冲（Tr）由温度传感器（34）控制的电路（31）产生，使得加热脉冲的持续时间具有负的温度系数。蒸发脉冲（Tv）由手动控制的电路（32）产生，电位计39根据期望的印刷强度确定脉冲持续时间。两个脉冲之间的延迟由延迟电路（38）控制，例如，单稳态电路。两个脉冲施加到在电极之间产生电压的变压器（35）。两个电路（31,32）可以由具有分开的RC网络的一个单稳态电路构成，该RC网络依次启用以确定加热和蒸发脉冲的持续时间。

3. 发明授权

US4503442A Ink jet printing head and serial printer 失效
标题翻译：喷墨打印头和串行打印机
公开(公告)号：US4503442A
公开(公告)日：1985-03-05
申请号：US452845
申请日：1982-12-23
申请人： Aquilino Barbero , Roberto Realis Luc
发明人： Aquilino Barbero , Roberto Realis Luc
IPC分类号： B41J2/05 , B41J2/175 , B41J25/34 , G01D15/16
CPC分类号： B41J2/1752 , B41J2/17513 , B41J25/34
摘要： The printing head (12) comprises an insulating container (14) for conductive ink (16) which is expelled through a fine nozzle (18) when a voltage pulse is applied between an electrode (56, 57, 40) and a counter-electrode (22). Capillary passages (51, 50) lead to the nozzle (18) to allow formation of an ink meniscus (23) right up until exhaustion of the ink. A vent (69) keeps the pressure inside the container constant. The head (12) is snap fitted onto a carriage with a conductive plate abutted by the counter-electrode (20) and a spring contacting the external part (40) of the electrode. This plate and spring are fed by way of conductive elements sliding along conductive carriage guides.
摘要翻译：打印头（12）包括用于导电油墨（16）的绝缘容器（14），当绝缘容器（14）在电极（56,57,40）和对电极（22）。毛细通道（51,50）通向喷嘴（18），以允许形成油墨弯液面（23）直到油墨消耗。通风口（69）保持容器内部的压力恒定。头部（12）卡扣配合到具有由对电极（20）邻接的导电板的滑架和与电极的外部部分（40）接触的弹簧。该板和弹簧通过沿导电滑架引导件滑动的导电元件进给。

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