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Cap device and liquid ejection device

A technology of spraying device and liquid spraying part, applied in the direction of printing, etc., can solve the problems of destroying the nozzle and affecting the characteristics of the nozzle, etc.

Active Publication Date: 2021-04-02
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the air pressure in the closed space rises, gas may flow into the nozzle and destroy the meniscus of the ink in the nozzle, which will affect the characteristics of the nozzle

Method used

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  • Cap device and liquid ejection device
  • Cap device and liquid ejection device
  • Cap device and liquid ejection device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0049] Such as figure 1As shown, the liquid ejecting device 7 includes a conveying unit 713, a printing unit 720, a heat generating unit 717, and an air blowing unit 718. The conveying unit 713 moves along the surface of the supporting platform 712 in the conveying direction Y to the objects supported on the supporting platform 712. The sheet-like medium ST is conveyed, and the printing unit 720 sprays ink, which is an example of a liquid, onto the conveyed medium ST to perform printing. The heat generating unit 717 and the blower unit 718 dry the ink sprayed on the medium ST.

[0050] The support stand 712 , the transport unit 713 , the heat generating unit 717 , the blower unit 718 , and the printing unit 720 are assembled in the printer main body 11 a composed of a case, a frame, and the like. In the printer main body 11a, the support table 712 is positioned in the width direction of the medium ST (in figure 1 , extending in the direction perpendicular to the paper surface...

no. 2 approach

[0220] Next, a second embodiment of the cap device 800 will be described with reference to the drawings.

[0221] In addition, in the second embodiment, members marked with the same symbols as in the first embodiment have the same configuration as in the first embodiment, and thus description thereof will be omitted, and the following description will focus on differences from the first embodiment.

[0222] Such as Figure 20 As shown, compared with the structure of the first embodiment, the cover device 800 of the second embodiment does not include a moisturizing liquid pump 812 for feeding the moisturizing liquid from the moisturizing liquid storage part 806 to the moisturizing liquid storage part 805, and a pump for A float 815 that opens and closes the supply channel 807 . In addition, in the cap device 800 according to the second embodiment, the supply channel 807 is provided integrally with the moisturizing liquid storage portion 806 . That is, the moisturizing solutio...

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Abstract

The present invention provides a cap device capable of appropriately moisturizing a liquid ejecting portion that ejects liquid, and a liquid ejecting device including the cap device. The cap device includes: a moisturizing cap (803) capable of forming a space including the nozzle by contacting a liquid ejecting portion that ejects liquid from the nozzle; a connecting flow channel (808) connected to the moisturizing cap; A moisturizing liquid supply part (804), which has a moisturizing liquid storage part (805) connected to the connecting flow channel and capable of storing moisturizing liquid, and the moisturizing liquid supply part can supply the moisturizing liquid storage part to the moisturizing liquid storage part The moisturizing liquid is such that the liquid level of the moisturizing liquid in the moisturizing liquid storage part becomes the first position ( h1 ), and the moisturizing cover has an atmosphere communication part (823) that opens the space to the atmosphere.

Description

technical field [0001] The present invention relates to a cap device for moisturizing a liquid ejecting portion that ejects liquid, and a liquid ejecting device including the cap device. Background technique [0002] Conventionally, liquid ejection devices such as inkjet printers are known that record on a medium by ejecting liquid such as ink from nozzles provided in a liquid ejection unit such as a head. Such a printer includes a printer provided with a moisturizing cap for moisturizing the head to prevent curing of the ink in the nozzle due to drying (for example, Patent Document 1). The moisturizing cap described in Patent Document 1 is provided with an absorbent material for retaining moisture, and is supplied with stored water from a water tank by utilizing a water level difference through a tube. Also, the moisturizing cap is in contact with the head to form a closed space including the nozzle, and absorbs moisture held by the material to moisturize the closed space....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/165
CPCB41J2/165B41J2/16517B41J2/16535B41J2/16541B41J2002/16558B41J2002/16564B41J2/16508B41J2/16505
Inventor 中田敏雄藤森亮治
Owner SEIKO EPSON CORP