Ink jet recording method and ink jet recording apparatus

Patent metadata

Field	Value
Publication number	US-10500841-B2
Application number	US-201816021622-A
Country	US
Kind code	B2
Filing date	Jun 28, 2018
Priority date	Jul 4, 2017
Publication date	Dec 10, 2019
Grant date	Dec 10, 2019

Abstract

An ink jet recording apparatus of the present invention includes an image forming unit which forms an ink image by discharging and applying ink containing at least a resin and a liquid component as an ink droplet onto a transfer body, a liquid removing unit which removes the liquid component in the ink image, a transfer unit which transfers removes the image, from which the liquid component is removed, onto a recording medium, a fixing unit which performs heating and pressing fixing on the image formed on the recording medium by pressing a fixing substrate, a liquid adhesion determination unit which determines whether a liquid adheres to a surface of the fixing substrate, and a liquid removing condition changing unit which changes a liquid removing condition of the liquid removing unit based on the determination result of the liquid adhesion determination unit.

First claim

What is claimed is:

1. An ink jet recording apparatus, comprising:
an ink image forming unit which forms an ink image by applying ink containing at least a resin and a liquid component onto a transfer body;
a liquid removing unit which removes at least a part of the liquid component in the ink image;
a transfer unit which transfers the ink image, from which at least a part of the liquid component is removed, onto a recording medium;
a fixing unit which performs heating and pressing fixing on the ink image formed on the recording medium by pressing a fixing substrate;
a liquid adhesion determination unit which determines whether a liquid adheres to a surface of the fixing substrate; and
a liquid removing condition changing unit which changes a liquid removing condition of the liquid removing unit based on the determination result of the liquid adhesion determination unit.

2. An ink jet recording apparatus, comprising:
an ink image forming unit which forms an ink image by applying ink containing at least a resin and a liquid component onto a recording medium;
a liquid removing unit which removes at least a part of the liquid component in the ink image;
a fixing unit which performs heating and pressing fixing on the ink image formed on the recording medium by pressing a fixing substrate;
a liquid adhesion determination unit which determines whether a liquid adheres to a surface of the fixing substrate; and
a liquid removing condition changing unit which changes a liquid removing condition of the liquid removing unit based on the determination result of the liquid adhesion determination unit.

3. The ink jet recording apparatus of claim 1 , wherein the liquid removing condition changing unit changes the liquid removing condition to increase a liquid removal amount of the liquid removing unit when the determination result is the determination that there is liquid adhesion, and decrease the liquid removal amount of the liquid removing unit when the determination result is the determination that there is no liquid adhesion.

4. The ink jet recording apparatus of claim 1 , wherein the liquid adhesion determination unit determines the liquid adhesion based on unevenness of brightness of an image obtained by capturing the fixing substrate.

5. The ink jet recording apparatus of claim 1 , wherein the liquid adhesion determination unit determines the liquid adhesion based on a gloss value of the fixing substrate.

6. The ink jet recording apparatus of claim 1 , wherein the liquid adhesion determination unit determines the liquid adhesion based on a moisture amount of the surface of the fixing substrate measured by a moisture meter.

7. The ink jet recording apparatus of claim 1 , wherein the fixing unit includes a cleaning unit which cleans impurity derived from the ink which adheres to the fixing substrate.

8. The ink jet recording apparatus of claim 1 , wherein the fixing unit is an endless press system.

9. The ink jet recording apparatus of claim 1 , further comprising:
a heating and drying unit which heats and dries the ink image after the liquid component is removed.

10. An ink jet recording method, comprising:
forming an ink image by applying ink containing at least a resin and a liquid component onto a recording medium or a transfer body;
removing at least a part of the liquid component in the ink image from the ink image;
performing heating and pressing fixing on the ink image formed on the recording medium or the ink image transferred from the transfer body onto the recording medium by pressing a fixing substrate;
determining whether a liquid adheres to a surface of the fixing substrate; and
changing a liquid removing condition of the removing of the liquid based on the determination result of the liquid adhesion determination unit.

11. The ink jet recording method of claim 10 , wherein in the forming of the ink image, the ink image is formed by applying the ink onto the recording medium.

12. The ink jet recording method of claim 10 , wherein in the forming of the ink image, the ink image is formed by applying the ink onto the transfer body.

13. The ink jet recording method of claim 12 , further comprising:
transferring the ink image, from which at least a part of the liquid component is removed by the removing of the liquid, from the transfer body onto the recording medium.

14. The ink jet recording apparatus of claim 2 , wherein the liquid removing condition changing unit changes the liquid removing condition to increase a liquid removal amount of the liquid removing unit when the determination result is the determination that there is liquid adhesion, and to decrease the liquid removal amount of the liquid removing unit when the determination result is the determination that there is no liquid adhesion.

15. The ink jet recording apparatus of claim 2 , wherein the liquid adhesion determination unit determines the liquid adhesion based on unevenness of brightness of an image obtained by capturing the fixing substrate.

16. The ink jet recording apparatus of claim 2 , wherein the liquid adhesion determination unit determines the liquid adhesion based on a gloss value of the fixing substrate.

17. The ink jet recording apparatus of claim 2 , wherein the liquid adhesion determination unit determines the liquid adhesion based on a moisture amount of the surface of the fixing substrate measured by a moisture meter.

18. The ink jet recording apparatus of claim 2 , wherein the fixing unit includes a cleaning unit which cleans impurity derived from the ink which adheres to the fixing substrate.

19. The ink jet recording apparatus of claim 2 , wherein the fixing unit is an endless press system.

20. The ink jet recording apparatus of claim 2 , further comprising:
a heating and drying unit which heats and dries the ink image after the liquid component is removed.

Assignees

• Canon Kk

Inventors

• Nishitani Eisuke
• Takeuchi Keiichirou
• Morita Akira
• Soma Kanako
• Otani Takumi
• Goto Fumihiro
• Nakazawa Koichiro

Classifications

• B41J11/0015

  for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114) · CPC title

• B41J2/0057 Primary

  where an intermediate transfer member receives the ink before transferring it on the printing material · CPC title

• B41M7/009

  using thermal means, e.g. infrared radiation, heat · CPC title

• B41J2/2114

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

• B41M7/00

  After-treatment of prints, e.g. heating, irradiating, {setting of the ink, protection of the printed stock (pre-treatment or treatment during printing B41M5/0011; printers for treating or overcoating copy materials before, during or after printing B41J11/0015)} · CPC title