Printing device, control method therefor, and non-transitory computer-readable storage medium

Patent metadata

Field	Value
Publication number	US-2025021275-A1
Application number	US-202418899683-A
Country	US
Kind code	A1
Filing date	Sep 27, 2024
Priority date	Mar 31, 2022
Publication date	Jan 16, 2025
Grant date	—

Abstract

A printing apparatus includes: a display device; a controller; and a memory configured to store computer-readable instructions, including: a first acquisition operation of acquiring first image data for printing a first image on a printing medium using an ink ejected from a nozzle; a first color conversion operation of performing color conversion on the first image data to generate second image data; a second color conversion operation of performing, according to a display condition when displaying the first image on the display device, color conversion on the second image data to generate third image data; and a display operation of displaying a second image on the display device based on the third image data. In the first color conversion operation, the color conversion is performed according to any one of a printing medium, a printing condition, and a combination of the printing medium and the printing condition.

First claim

What is claimed is:

1 . A printing apparatus comprising:
a display device; a controller; and a memory configured to store computer-readable instructions that, when executed by the controller, perform processes including: a first acquisition operation of acquiring first image data for printing a first image on a printing medium using an ink ejected from a nozzle; a first color conversion operation of performing color conversion on the first image data to generate second image data; a second color conversion operation of performing, according to a display condition when displaying the first image on the display device, color conversion on the second image data to generate third image data; and a display operation of displaying a second image on the display device based on the third image data, and wherein in the first color conversion operation, the color conversion is performed according to any one of a printing medium, a printing condition, and a combination of the printing medium and the printing condition.

2 . The printing apparatus according to claim 1 ,
wherein the first color conversion operation includes performing the color conversion such that the second image displayed on the display device becomes darker as an ejection amount of ink when printing the first image based on the first image data increases.

3 . The printing apparatus according to claim 2 ,
wherein as the ejection amount of ink when printing the first image based on the first image data increases, the first color conversion operation incudes varying any one of hue of the second image data, lightness of the second image data, saturation of the second image data, a combination of the hue and the lightness, a combination of the lightness and the saturation, a combination of the saturation and the hue, and a combination of the hue, the lightness and the saturation, wherein varying the hue includes varying a hue angle, wherein varying the lightness includes lowing the lightness, and wherein varying the saturation includes moving the saturation away from an origin of a Lab color space.

4 . The printing apparatus according to claim 1 ,
wherein the first color conversion operation includes performing the color conversion such that the second image displayed on the display device becomes darker as printing resolution when printing the first image based on the first image data becomes higher.

5 . The printing apparatus according to claim 4 ,
wherein as the printing resolution when printing the first image based on the first image data becomes higher, the first color conversion operation includes varying any one of hue of the second image data, lightness of the second image data, saturation of the second image data, a combination of the hue and the lightness, a combination of the lightness and the saturation, a combination of the saturation and the hue, and a combination of the hue, the lightness and the saturation, wherein varying the hue includes varying a hue angle, wherein varying the lightness includes lowing the lightness, and wherein varying the saturation includes moving the saturation away from an origin of a Lab color space.

6 . The printing apparatus according to claim 1 ,
wherein the first color conversion operation includes performing the color conversion such that saturation of the second image data becomes higher as types of ink when printing the first image based on the first image data increases.

7 . The printing apparatus according to claim 1 ,
wherein the first color conversion operation includes performing the color conversion such that when types of ink to be used for printing the first image based on the first image data are predetermined basic colors and chromatic colors other than the basic colors, saturation of the second image data is higher than when types of ink are only the basic colors.

8 . The printing apparatus according to claim 1 ,
wherein the first color conversion operation includes performing the color conversion such that when printing the first image based on the first image data on a base formed by ejecting a base ink onto a surface of the printing medium, the second image displayed on the display device becomes darker than when printing the first image based on the first image data on the surface of the printing medium without the base.

9 . The printing apparatus according to claim 8 ,
wherein when printing the first image based on the first image data on a base formed by ejecting a base ink onto a surface of the printing medium, the first color conversion operation includes varying any one of hue of the second image data, lightness of the second image data, saturation of the second image data, a combination of the hue and the lightness, a combination of the lightness and the saturation, a combination of the saturation and the hue, and a combination of the hue, the lightness and the saturation, from a case when printing the first image based on the first image data on the surface of the printing medium without the base, wherein varying the hue includes varying a hue angle, wherein varying the lightness includes lowing the lightness, and wherein varying the saturation includes moving the saturation away from an origin of a Lab color space.

10 . The printing apparatus according to claim 1 ,
wherein the first color conversion operation includes performing the color conversion such that when printing the first image based on the first image data on a base formed by ejecting a base ink onto a surface of the printing medium, the second image displayed on the display device becomes darker as an ejection amount of the base ink increases.

11 . The printing apparatus according to claim 10 ,
wherein when printing the first image based on the first image data on a base formed by ejecting a base ink onto a surface of the printing medium, as the ejection amount of the base ink increases, the first color conversion operation includes varying any one of hue of the second image data, lightness of the second image data, saturation of the second image data, a combination of the hue and the lightness, a combination of the lightness and the saturation, a combination of the saturation and the hue, and a combination of the hue, the lightness and the saturation, wherein varying the hue includes varying a hue angle, wherein varying the lightness includes lowing the lightness, and wherein varying the saturation includes moving the saturation away from an origin of a Lab color space.

12 . The printing apparatus according to claim 1 ,
wherein the controller is configured to execute performing a second acquisition, the second acquisition includes acquiring a color gamut that is printable on the printing medium by an ink ejected from the nozzle, and wherein, for a pixel that is outside the color gamut after the first image data is color converted in the first color conversion operation, the second color conversion operation includes assigning a special color value indicating that the pixel is outside the color gamut, and generating the second image data.

13 . A control method for a printing apparatus comprising:
causing a printing apparatus including a display device to execute a first acquisition operation of acquiring first image data for printing a first image on a printing medium using an ink ejected from a nozzle, a first color conversion operation of performing color conversion on the first image data to generate second image data, a second color conversion operation of performing, according to a display condition when displaying the first image on the display device, color conversion on the second image

Assignees

• Brother Ind Ltd

Inventors

• Mizuno Kodai
• Miwa Hitomi
• Morikawa Shota

Classifications

• G06F3/1208 Primary

  resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview · CPC title

• G06F3/1256

  User feedback, e.g. print preview, test print, proofing, pre-flight checks · CPC title

• G06K15/102

  using ink jet print heads · CPC title

• G06K15/1878 Primary

  Adjusting colours (image colour correction or control for documents in general H04N1/60) · CPC title

• B41J5/30

  Character or syllable selection controlled by recorded information · CPC title