# US 10,500,841 B2 · Ink jet recording method and ink jet recording apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,841 B2 - Document ID: US10500841B2 - Status: Granted - Kind: B2 - Application number: 16/021,622 - Filed: 2018-06-28 - Published: 2019-01-10 - Granted: 2019-12-10 - Earliest claimed: 2017-07-04 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Eisuke Nishitani; Keiichirou Takeuchi; Akira Morita; Kanako Soma; Takumi Otani; Fumihiro Goto; Koichiro Nakazawa - Web page: https://patentgrep.com/patent/US10500841B2 ## CPC - B41J 2/0057: {where an intermediate transfer member receives the ink before transferring it on the printing material} - B41J 2/2114: {Ejecting specialized liquids, e.g. transparent or processing liquids (B41J2/211 takes precedence)} - B41J 11/0015: {for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114)} - B41M 7/00: 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)} - B41M 7/009: {using thermal means, e.g. infrared radiation, heat} - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) ## 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. ## Claims ### Claim 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. ### Claim 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. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 1) 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. ### Claim 5 (depends on 1) 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. ### Claim 6 (depends on 1) 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. ### Claim 7 (depends on 1) 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. ### Claim 8 (depends on 1) The ink jet recording apparatus of claim 1, wherein the fixing unit is an endless press system. ### Claim 9 (depends on 1) 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. ### Claim 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. ### Claim 11 (depends on 10) 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. ### Claim 12 (depends on 10) 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. ### Claim 13 (depends on 12) 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. ### Claim 14 (depends on 2) 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. ### Claim 15 (depends on 2) 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. ### Claim 16 (depends on 2) 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. ### Claim 17 (depends on 2) 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. ### Claim 18 (depends on 2) 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. ### Claim 19 (depends on 2) The ink jet recording apparatus of claim 2, wherein the fixing unit is an endless press system. ### Claim 20 (depends on 2) 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.