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Liquid ejection apparatus, print head nozzle end cap and maintenance method for liquid ejection apparatus

A print head and nozzle technology, applied in printing and other directions, can solve the problems of ink droplets and surrounding pollution, and achieve the effect of preventing ink from scattering

Active Publication Date: 2013-03-27
MIMAKI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the ink forms droplets and pollutes the surroundings.

Method used

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  • Liquid ejection apparatus, print head nozzle end cap and maintenance method for liquid ejection apparatus
  • Liquid ejection apparatus, print head nozzle end cap and maintenance method for liquid ejection apparatus
  • Liquid ejection apparatus, print head nozzle end cap and maintenance method for liquid ejection apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0020] A liquid ejection device 1 according to one aspect of the present invention includes figure 1 A printhead nozzle cap 10 and a printhead nozzle 20 are shown.

[0021] print head nozzle 20

[0022] The print head nozzle 20 includes a nozzle (discharge hole) 21 that discharges the discharged liquid (hereinafter referred to as ink in this embodiment) toward the printed matter.

[0023] The print head nozzle 20 includes an ink cartridge not shown. The ink cartridge is filled with ink from a liquid storage tank not shown. Although several methods of filling ink into the ink cartridge are known, the method using the pressure feeding method will be described here. In the case of the pressure-feeding method, the upstream side of the ink cartridge is pressurized by a pump until a pressure higher than atmospheric pressure is reached. Ink is pressure-fed from the liquid storage tank to the liquid cartridge by the applied pressure. exist figure 1 The pumped ink is shown as p...

Embodiment approach 2

[0046] The liquid ejection device 100 has figure 2 Printhead nozzle cap 50 and printhead nozzle 20 are shown. In addition, the same code|symbol is attached|subjected to the same member as the member demonstrated in Embodiment 1, and the description is abbreviate|omitted. Specifically, the head nozzles 20 included in the liquid ejection device 100 are the same as the head nozzles 20 in the first embodiment. Therefore, in Embodiment 2, description of the head nozzle 20 will be omitted, and only the head nozzle cap 50 will be described.

[0047] Print head nozzle end cap 50

[0048] Compared with the structure of the print head nozzle cap 10 , the structure of the print head nozzle cap 50 is different in the communication structure provided on the print head nozzle cap contact surface 52 . No communicating structure in a convex structure is provided on the print head nozzle cap abutting surface 52 . Therefore, when the head nozzle cap 50 is brought into contact with the he...

Embodiment approach 3

[0058] The liquid ejection device 200 has image 3 Printhead nozzles 20 and printhead nozzle caps 60 are shown. In addition, the same code|symbol is attached|subjected to the same member as the member demonstrated in Embodiment 1, and the description is abbreviate|omitted. Specifically, the head nozzles 20 included in the liquid ejection device 200 are the same as the head nozzles 20 in the first embodiment. Therefore, in Embodiment 3, description of the head nozzle 20 will be omitted, and only the head nozzle cap 60 will be described.

[0059] Print head nozzle end cap 60

[0060] The print head nozzle end cap 60 has an end cap inner wall 61 and an end cap outer wall 62 . A cutout 63 is provided on the inner wall of the end cap. image 3 (a) is a perspective view showing the outline of the head nozzle cap 60 . image 3 (b) is a schematic diagram illustrating a cross section of the liquid ejection device 200 at the position of the cutout 63 .

[0061]In the print head ...

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PUM

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Abstract

The invention provides a liquid ejection apparatus capable of preventing the flying of ink ejected out of a print head nozzle during the processes of ink filling, washing and flushing. According to the one embodiment of the invention, the liquid ejection apparatus (1) comprises a print head nozzle (20) used for ejecting droplets; and a print head nozzle end cap (10) served as a cap for the print head nozzle (20). At least one of the abutting surface (12) of the print head nozzle end cap (10) and the abutting surface (22) of the print head nozzle, is provided with a communicating structure for communicating the inner and outer sides of the print head nozzle end cap (10) to form a continuous space.

Description

technical field [0001] The present invention relates to a liquid ejection device and a print head nozzle cap, the liquid ejection device having a mechanism for preventing ink from contaminating the surroundings during maintenance work of the print head nozzles performed during non-printing. Background technique [0002] In the inkjet recording apparatus, in the case where the nozzles of the print head are changed from a predetermined state, the printing quality is significantly lowered. In order to prevent deterioration of printing quality, steps called cleaning and rinsing are performed during non-printing when the inkjet recording apparatus is not performing printing. [0003] Patent Document 1 discloses a technique in which ink ejected from a recording head is accommodated in a cover member in order to prevent the ejected ink from splashing and contaminating the surroundings during cleaning, flushing, and the like. In a state where the recording head and the cover member...

Claims

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Application Information

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IPC IPC(8): B41J2/01B41J2/165
Inventor 林正广
Owner MIMAKI ENG