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Image printing using print quality enhancing ink and printing method thereof

A quality enhancement and printing device technology, applied in printing, ink, application, etc., can solve problems such as unsatisfactory image quality

Inactive Publication Date: 2007-09-26
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In short, traditional printing with ordinary inks sometimes cannot achieve satisfactory image quality

Method used

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  • Image printing using print quality enhancing ink and printing method thereof
  • Image printing using print quality enhancing ink and printing method thereof
  • Image printing using print quality enhancing ink and printing method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 2 approach

[0052] D. Change method

[0053] A. Structure of the device

[0054] Fig. 1 is a block diagram showing the configuration of a printing system in a first embodiment of the present invention. The printing system includes a computer 90 as a printing press control device, and a printing press 20 as a printing device. Both the printing press 20 and the computer 90 are referred to as "printing devices" in a broad sense.

[0055] The computer 90 runs application programs 95 on a predetermined operating system. This operating system includes a video driver 91 and a printer driver 96 as quality adjustment means or ink quantity determination means. The print data PD is output from the application program 95 to the printer 20 through these drivers. Then touch the image or the application program 95 in the same way runs the required program on the target image and displays the image on the CRT21 through the video driver 91.

[0056]When the application 95 issues a print command, the ...

Embodiment 1

[0076] Figure 6(a) shows the relationship between the ejection amount of the color ink VS and the ejection amount of the quality enhancement ink VCL, and Figure 6(b) shows the relationship between the ejection amount of the color ink VS and the total amount of the color ink and the quality enhancement ink The relationship between the injection amount VT (=VS+VCL). The horizontal axis represents the ejection amount of the color ink VS, and the vertical axis represents the ink ejection amount indicated by a code.

[0077] The amount of ink is shown as a percentage, where 100% means that any ink was expelled on all pixels. When it is possible to form dots of different sizes in a single pixel area, the actual amount of ink discharged should be considered. The discharged color ink amount VS is the total amount of each color ink. Therefore, when several different types of colored inks are ejected to the same pixel location, the discharged ink volume VS or VT will be greater than 1...

Embodiment 2

[0083] 7(a) and 7(b) show the relationship between the ejection amount of the color ink VS and the ejection amount of the enhancement ink VCL in Example 2 of the first mass adjustment mode.

[0084] The enhanced ink volume VCL is set such that the total ink volume VT is at least a first predetermined non-zero value A. In the area where the amount of color ink is greater than the first predetermined value A, the enhanced ink amount VCL is set at least a second predetermined value B which is not zero. Specifically, the total ink volume VT ejected over the entire area of ​​the printed image is at least a first predetermined value A, and the enhanced ink volume VCL ejected over the entire area of ​​the printed image is at least a second predetermined value B. As a result, when the glossiness of the mass enhancement ink CL differs from that of the color inks, it is possible to minimize the difference in gloss by discharging the mass enhancement ink CL in the entire area of ​​the pr...

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PUM

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Abstract

Image quality is improved by adjusting the ejection amount of quality enhancing ink based on the ejection amount of colored ink containing colorant. When a relatively high gross printing medium is used, the quality enhancing ink is ejected in an image area where virtually no colored ink is ejected, thereby improving unevenness in gloss within the print image. When a relatively low gross printing medium is used, on the other hand, the quality enhancing ink is ejected in an image area where the colored ink is ejected on virtually all pixels, thereby improving unevenness in color within the print image. The relationship between the ejection amounts of the quality enhancing ink and the colored ink may be modified by the user.

Description

[0001] This application is a divisional application of the patent application with the application number 03110435.5, the application date is April 15, 2003, and the invention title is "image printing device using quality-enhanced ink and its printing method". technical field [0002] The present invention relates to a printing device for printing an image by jetting a plurality of inks onto a printing medium. Background technique [0003] In recent years, inkjet printers have gradually gained popularity as image printing devices. Users can select the desired printing medium from various printing medium types suitable for inkjet printers. Such print media include, for example, "glossy" paper having a relatively high gloss, "plain" paper having a relatively low gloss, matte paper, and the like. [0004] The amount of ink ejected onto the print medium depends on the printed image data. More ink is jetted in areas of low lightness, and less ink is jetted in areas of high ligh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/07C09D11/02
Inventor 山崎乡志山本祐子
Owner SEIKO EPSON CORP
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