Recording apparatus, method, and medium

Patent metadata

Field	Value
Publication number	US-12377674-B2
Application number	US-202217932924-A
Country	US
Kind code	B2
Filing date	Sep 16, 2022
Priority date	Sep 22, 2021
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

A recording apparatus that causes less degradation of image quality due to blurring caused by dot misalignment between an ink containing a coloring material and a reaction liquid includes a recording unit configured to record an image on a recording medium by applying an ink containing a coloring material and a reaction liquid containing a component that aggregates the coloring material, an acquisition unit configured to acquire multi-valued ink data to apply the ink, and a generating unit configured to generate first multi-valued reaction liquid data based on the multi-valued ink data and, when a tone value of a pixel of interest in the first multi-valued reaction liquid data is lower than a tone value of any one of a plurality of surrounding pixels around the pixel of interest, generate second multi-valued reaction liquid data by increasing the tone value of the pixel of interest.

First claim

What is claimed is:

1. A recording apparatus comprising:
a recording unit configured to record an image on a recording medium by applying an ink containing a coloring material and a reaction liquid containing a component that aggregates the coloring material;
an acquisition unit configured to acquire multi-valued ink data to apply the ink; and
a generating unit configured to generate first multi-valued reaction liquid data based on the multi-valued ink data and, when a tone value of a pixel of interest in the first multi-valued reaction liquid data is lower than a tone value of any one of a plurality of surrounding pixels around the pixel of interest, generate second multi-valued reaction liquid data by increasing the tone value of the pixel of interest,
wherein each pixel of the first multi-valued reaction liquid data has a lower tone value than the multi-valued ink data.

2. The recording apparatus according to claim 1 , wherein the generating unit generates the second multi-valued reaction liquid data by changing the tone value of the pixel of interest in the first multi-valued reaction liquid data to a maximum tone value of the plurality of surrounding pixels.

3. The recording apparatus according to claim 1 , wherein the generating unit generates the second multi-valued reaction liquid data by using a filter for the first multi-valued reaction liquid data.

4. The recording apparatus according to claim 1 , further comprising a quantization unit configured to generate quantization data indicating whether or not the ink and the reaction liquid are supplied from the recording unit by quantizing the multi-valued ink data and the multi-valued reaction liquid data.

5. The recording apparatus according to claim 1 , further comprising a control unit configured to record an image on a recording medium by controlling a recording operation from the recording unit based on the quantization data.

Assignees

• Canon Kk

Inventors

• Jogo Jumpei
• Baba Naoko
• Konno Yuji
• Marumoto Yoshitomo
• Genta Shin
• Ushiyama Takayuki
• Shimokodachi Yumi
• Yoshikawa Serena
• Yokokawa Taichi

Classifications

• B41J2/16508

  connected with the printer frame · CPC title

• B41J2/2117

  Ejecting white liquids · CPC title

• B41J2/2114 Primary

  Ejecting specialized liquids, e.g. transparent or processing liquids (B41J2/211 takes precedence) · CPC title

• B41M5/0017

  Application of ink-fixing material, e.g. mordant, precipitating agent, on the substrate prior to printing, e.g. by ink-jet printing, coating or spraying · CPC title

• B41J2/2054

  by the variation of dot disposition or characteristics, e.g. dot number density, dot shape · CPC title