公开(公告)号：US4329696A

公开(公告)日：1982-05-11

申请号：US171594

申请日：1980-07-23

申请人： George W. Denlinger ,  Robert A. Wiley ,  James H. Yu

发明人： George W. Denlinger ,  Robert A. Wiley ,  James H. Yu

IPC分类号： B41J2/175 ,  B41J2/17 ,  G06K15/10 ,  G01D15/18

CPC分类号： B41J2/17

摘要： An ink jet fluid system includes a print head, defining a fluid reservoir, and further including at least one orifice communicating with the reservoir for generating a jet drop stream from the fluid flowing through the orifice. Inlet and outlet valves are connected to inlet and outlet openings of the print head, respectively, and a siphon line extending generally downward is connected to the outlet valve. A float valve, connected between the siphon line and the fluid supply system for the print head, vents the lower end of the siphon line to atmosphere to produce a sub-atmospheric fluid pressure within the print head after shutdown of the printer. The float valve includes a float which prevents air from entering the fluid supply through the valve. The float valve further is arranged so as to prevent ink within the valve from flowing out the vent opening.

摘要翻译： 喷墨流体系统包括限定流体储存器的打印头，并且还包括与储存器连通的至少一个孔，用于从流过孔的流体产生喷射流。 入口和出口阀分别连接到打印头的入口和出口，并且大体上向下延伸的虹吸管连接到出口阀。 连接在虹吸管和用于打印头的流体供应系统之间的浮阀将虹吸管的下端排出到大气中，以在关闭打印机之后在打印头内产生低于大气压的液压。 浮阀包括浮子，其防止空气通过阀进入流体供应。 浮球阀进一步设置成防止阀内的墨水流出通气口。

公开(公告)号：US4240082A

公开(公告)日：1980-12-16

申请号：US15887

申请日：1979-02-28

申请人： James H. Yu

发明人： James H. Yu

IPC分类号： B41J2/175 ,  B41J2/17 ,  B41J2/195 ,  G01D15/18

CPC分类号： B41J2/1707 ,  B41J2/195

摘要： A method and apparatus for terminating the flow of liquid coating material from a jet drop recording device without splattering or seepage is provided. A supply of coating material under pressure is pumped through an inlet valve to a manifold in the printing head of the device. Shutdown is initiated by closing the inlet valve, terminating the supply of coating material. When the pressure in the manifold has dropped to the minimum required for normal operation of the recording device, an outlet valve connecting the manifold to a source of vacuum is opened, rapidly reducing the pressure in the manifold to atmospheric and terminating the flow of coating material from the printing head. A control unit is provided to open and close the valves and monitor the pressure inside the manifold to insure proper sequencing during the shutdown procedure.

摘要翻译： 提供一种用于从喷墨记录装置终止液体涂覆材料流而不发生飞溅或渗流的方法和装置。 将压力下的涂料供应通过入口阀泵送到装置的打印头中的歧管。 通过关闭入口阀开始关闭，终止涂料的供应。 当歧管中的压力下降到记录装置的正常操作所需的最小值时，将歧管连接到真空源的出口阀打开，迅速将歧管中的压力降低到大气压并终止涂层材料的流动 从打印头。 提供一个控制单元以打开和关闭阀门并监测歧管内的压力，以确保关闭过程中的顺序。