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Liquid ejection device and liquid ejector method

A technology of jetting device and liquid jetting head, which is applied in the direction of printing device, printing, etc., and can solve problems such as ink no longer solidifying and image quality deteriorating

Inactive Publication Date: 2011-09-21
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, for an ultraviolet irradiation device equipped with a plurality of ultraviolet light-emitting elements like Patent Document 1, if a defect occurs in one of the ultraviolet light-emitting elements, the amount of ultraviolet light (irradiation amount) changes, so that the corresponding part Ink no longer solidifies
Therefore, there is a possibility that uncured inks will mix with each other on the target object to cause bleeding of the image and degrade the image quality.

Method used

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  • Liquid ejection device and liquid ejector method
  • Liquid ejection device and liquid ejector method
  • Liquid ejection device and liquid ejector method

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no. 1 Embodiment approach

[0031] Below, follow Figure 1 ~ Figure 3 , and an embodiment in which the present invention is embodied as an inkjet printer (hereinafter sometimes simply referred to as a "printer") as a type of liquid ejecting apparatus will be described.

[0032] Such as figure 1 As shown, in an inkjet printer 11 as a liquid ejecting device, there are provided: a feeding part 13 that sends out a long-sized continuous paper 12 as a target object; The ink is used for performing recording processing; and the winding unit 15 is configured to wind the continuous paper 12 subjected to the recording processing. Further, in the printing unit 14, a rectangular plate-shaped platen 16 capable of supporting the continuous paper 12 is provided.

[0033] That is, in the conveying direction of the continuous paper 12 , the feed unit 13 is arranged on the upstream side on the left side, and the winding unit 15 is arranged on the downstream side on the right side. Furthermore, a printing unit 14 is disp...

no. 2 Embodiment approach

[0058] Below, according to Figure 4 and Figure 5 A second embodiment of the present invention will be described. In addition, when the second embodiment is compared with the first embodiment, the configuration of the printing unit 14 is partially different, and the other configurations are substantially the same as those of the first embodiment. Therefore, in the following description, points that are different from those of the first embodiment will be mainly described, and the same configurations will be assigned the same reference numerals, and redundant descriptions will be omitted.

[0059] Such as Figure 4 and Figure 5 As shown, in the printing unit 14 of the present embodiment, the guide rail 35 is fixedly arranged on the downstream side of the ultraviolet irradiation device 27 in the conveyance direction of the continuous paper 12. The guide rail 35 is the same as the recording head 25 and the ultraviolet irradiation device 27, and the The direction perpendicul...

no. 3 Embodiment approach

[0063] Below, according to Image 6 and Figure 7 A third embodiment of the present invention will be described. In addition, when the third embodiment is compared with the first embodiment and the second embodiment, the configuration of the printing unit 14 and the configuration of the image recorded on the continuous paper 12 at the time of good or bad judgment of the ultraviolet LED 28 are partially different. , and others are substantially the same configurations as those of the first embodiment and the second embodiment. Therefore, in the following description, points that are different from those of the first embodiment and the second embodiment will be mainly described, and the same reference numerals will be attached to the same configurations, and overlapping descriptions will be omitted.

[0064] Such as Image 6 and Figure 7 As shown, in the printing unit 14 of this embodiment, white (W), yellow Five recording heads 38W, 38Y, 38M, 38C, and 38Bk corresponding t...

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Abstract

A liquid ejection device includes: a recording head for ejecting an ultraviolet curable ink onto continuous paper so that an image corresponding to liquid ejection data is formed on the continuous paper; an ultraviolet radiation device in which a plurality of ultraviolet LEDs for radiating ultraviolet rays onto the ink deposited on the continuous paper by ejection from the recording head are aligned along a direction that intersects the relative movement direction of the continuous paper; a camera for acquiring the image formed on the continuous paper as image data along the alignment direction of the ultraviolet LEDs, based on the ultraviolet radiation from the ultraviolet radiation device; and a control device for comparing the image data acquired by the camera with the liquid ejection data and distinguishing the quality of the ultraviolet LEDs based on the comparison results.

Description

technical field [0001] The present invention relates to a liquid ejection device such as an inkjet printer or the like. Background technique [0002] Conventionally, an inkjet printer (hereinafter also referred to as a "printer") is known as a liquid ejecting device that ejects ink (liquid) to a target. In recent years, ultraviolet curable inks have been attracting attention as inks used in such printers. This ultraviolet curable ink cures very slowly before being irradiated with ultraviolet rays, but is cured rapidly when irradiated with ultraviolet rays. [0003] With respect to the printer that uses this kind of ultraviolet curable ink, need to be in the conveyance direction of the target object on the downstream side than the recording head (liquid jet head) position, have the ability to prevent the ink attached to the target object by the ejection from the recording head. An ultraviolet irradiation device that irradiates ultraviolet rays to the ink on the surface (for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01
CPCB41J29/393B41J2/2146B41J11/002B41J11/00212B41J11/00214
Inventor 藤泽和利
Owner SEIKO EPSON CORP