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CN107206790A 带打印机流体止回阀的打印头 无效 - 驳回

带打印机流体止回阀的打印头
摘要：
在一些实例中，打印头可以包括：主打印机流体管线；与主打印机流体管线流体连通用以接收来自主打印机流体管线的打印机流体的喷发室；和位于喷发室中的电阻器。该电阻器可以例如接收电子流从而使电阻器加热并且将打印机流体微滴从打印头中喷射出。打印头还可以包括位于喷发室中的用光刻法制造的止回阀。止回阀可以例如可开启从而允许用打印机流体填充喷发室并且可闭合从而至少部分地将主打印机流体管线密封以防止由电阻器所造成的打印机流体后泄。
摘要（英）：

In some examples, a printhead can include a main printer fluid line, a firing chamber in fluid communication with the main printer fluid line to receive printer fluid from the main printer fluid line, and a resistor positioned in the firing chamber. The resistor can, for example, receive an electronic current to cause the resistor to heat up and eject printer fluid droplets from the printhead. The printhead can further include a photolithographically fabricated check valve positioned in the firing chamber. The check valve can, for example, be openable to allow filling of the firing chamber with printer fluid and closeable to at least partially seal the main printer fluid line from printer fluid blowback caused by the resistor.

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