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Liquid supply unit and liquid injection device

A technology of liquid supply and liquid ejection head, which is applied in printing and other directions, can solve the problems such as the structure that does not propose pressurized clearing, and achieve the effect of simple pressurized clearing

Active Publication Date: 2019-10-22
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as mentioned above, in the liquid supply unit using the pressure fluctuation system of the pressure chamber, there is actually no proposed structure that can easily perform the above-mentioned pressurized purge.

Method used

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  • Liquid supply unit and liquid injection device
  • Liquid supply unit and liquid injection device
  • Liquid supply unit and liquid injection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] [Overall structure of the printer]

[0053] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, an inkjet printer to which a liquid supply unit or a liquid ejection device according to the present invention is applied will be described. figure 1 is a perspective view showing the appearance of the inkjet printer 1 according to the embodiment, figure 2 yes figure 1 The sectional view of the II-II line direction, image 3 It is a front view of the printer 1 with the cover 102 removed. In addition, in Figure 1 to Figure 3 And in the drawings shown later, the directions of front and rear, left and right, and up and down are indicated, but this is only for convenience of description, and is not intended to limit the directions in any way.

[0054] The printer 1 (liquid ejecting device) is a printer that performs inkjet printing, printing, and other printing processes on various sheets W (working objects) such as ...

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PUM

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Abstract

The present invention provides a liquid supply unit and a liquid injection device. The liquid supply unit supplies predetermined liquid from a liquid storage container storing the liquid to a liquid injection head for injecting the liquid. The liquid supply unit includes a pressure chamber, a first supply passage, a second supply passage, a bypass supply passage and a pressurizing mechanism. The pressure chamber is capable of storing the liquid. The first supply passage allows communication between the liquid storage container and the pressure chamber. The second supply passage allows communication between the liquid injection head and the pressure chamber. The bypass supply passage has an upstream end in a liquid supply direction connected to the first supply passage and a downstream endjoining the second supply passage. The pressurizing mechanism is arranged in the bypass supply passage and pressurizes the liquid flowing in the bypass supply passage. Therefore, in the liquid supplyunit by adopting the pressure change of a pressure chamber storing liquid, the pressurizing removal of a liquid injection head can be simply executed.

Description

technical field [0001] The present invention relates to a liquid supply unit for supplying a liquid stored in a liquid storage container to a liquid ejection head, and a liquid ejection device to which the liquid supply unit is applied. Background technique [0002] For example, in an inkjet printer, a liquid ejection head that ejects a minute amount of ink (liquid) to a printing object is used. Ink is supplied to the liquid ejection head from an ink cartridge (liquid storage container) storing ink through a predetermined supply channel. Conventionally, it is known that, when ink is supplied from an ink cartridge to a liquid ejection head using a head difference, a liquid supply unit (valve unit) having a pressure chamber for setting the ejection hole of the liquid ejection head to a negative pressure is arranged in the The supply channel is formed by the liquid ejection device. By providing the liquid supply means for forming the negative pressure, even in the case of sup...

Claims

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Application Information

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IPC IPC(8): B41J2/01B41J2/175
CPCB41J2/01B41J2/17556B41J2/17596
Inventor 江藤大辅
Owner KYOCERA DOCUMENT SOLUTIONS INC