# US 12,313,995 B2 · Image forming device and image forming method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,313,995 B2 - Document ID: US12313995B2 - Status: Granted - Kind: B2 - Application number: 18/389,837 - Filed: 2023-12-20 - Published: 2024-08-15 - Granted: 2025-05-27 - Earliest claimed: 2023-02-13 - Assignees: Toshiba Tec Kabushiki Kaisha - Applicants: Toshiba Tec Kabushiki Kaisha - Inventors: Yusuke Hamada; Sou Miyazaki - Web page: https://patentgrep.com/patent/US12313995B2 ## CPC - G03G 15/5095: {Matching the image with the size of the copy material, e.g. by calculating the magnification or selecting the adequate copy material size} - G03G 15/6585: {by using non-standard toners, e.g. transparent toner, gloss adding devices} - G06K 15/1842: {Geometric transformations, e.g. on raster data} - G03G 9/0926: {characterised by physical or chemical properties} - G03G 15/5016: {User-machine interface; Display panels; Control console} - G03G 2215/00814: Cutter - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS ## Abstract Provided is a technique that can suitably form a cut line. According to one embodiment, an image forming device includes a line information generation unit and an image forming unit. The line information generation unit generates line information representing a cut line to cut out a main image formed on a recording medium. The image forming unit forms the main image with a non-decolorable material on the recording medium and forms the cut line represented by the line information with a decolorable material on the recording medium. The line information generation unit changes a level of curving of a curve included in the cut line, according to the recording medium. ## Claims ### Claim 1 An image forming device, comprising: a line information generation component configured to generate line information representing a cut line to cut out a main image formed on a recording medium; an image forming component configured to form the main image with a non-decolorable material on the recording medium and form the cut line represented by the line information with a decolorable material on the recording medium, wherein the line information generation component changes a level of curving of a curve included in the cut line, according to the recording medium. ### Claim 2 (depends on 1) The image forming device according to claim 1, wherein the line information generation component makes the level of curving of the curve included in the cut line gentler as a thickness of the recording medium becomes greater. ### Claim 3 (depends on 1) The image forming device according to claim 1, wherein the line information generation component makes the level of curving of the curve included in the cut line gentler as a hardness of the recording medium becomes greater. ### Claim 4 (depends on 1) The image forming device according to claim 1, wherein the line information generation component forms a closed curve that surrounds the main image and that forms an area where a predetermined shape is formed, as the cut line. ### Claim 5 (depends on 1) The image forming device according to claim 1, wherein the line information generation component forms a closed curve having a shape of an area formed by a cut line similar to a shape of the main image. ### Claim 6 (depends on 1) The image forming device according to claim 1, further comprising: an image processing component configured to determine whether the main image is a convex image or a concave image. ### Claim 7 (depends on 1) The image forming device according to claim 1, wherein the non-decolorable material has multiple colors. ### Claim 8 An image forming method, comprising: generating line information representing a cut line to cut out a main image formed on a recording medium; forming the main image with a non-decolorable material on the recording medium and forming the cut line represented by the line information with a decolorable material on the recording medium; and changing a level of curving of a curve included in the cut line, according to the recording medium. ### Claim 9 (depends on 8) The image forming method according to claim 8, further comprising: making the level of curving of the curve included in the cut line gentler as a thickness of the recording medium becomes greater. ### Claim 10 (depends on 8) The image forming method according to claim 8, further comprising: making the level of curving of the curve included in the cut line gentler as a hardness of the recording medium becomes greater. ### Claim 11 (depends on 8) The image forming method according to claim 8, further comprising: forming a closed curve that surrounds the main image and that forms an area where a predetermined shape is formed, as the cut line. ### Claim 12 (depends on 8) The image forming method according to claim 8, further comprising: forming a closed curve having a shape of an area formed by a cut line similar to a shape of the main image. ### Claim 13 (depends on 8) The image forming method according to claim 8, further comprising: determining whether the main image is a convex image or a concave image. ### Claim 14 (depends on 8) The image forming method according to claim 8, wherein the non-decolorable material is black toner. ### Claim 15 An image forming device, comprising: a line information generation component configured to generate line information representing a cut line to cut out a main image formed on a recording medium; an image forming component configured to form the main image with a black toner on the recording medium and form the cut line represented by the line information with a decolorable material on the recording medium, wherein the line information generation component changes a level of curving of a curve included in the cut line, according to the recording medium. ### Claim 16 (depends on 15) The image forming device according to claim 15, wherein the line information generation component makes the level of curving of the curve included in the cut line gentler as a thickness of the recording medium becomes greater. ### Claim 17 (depends on 15) The image forming device according to claim 15, wherein the line information generation component makes the level of curving of the curve included in the cut line gentler as a hardness of the recording medium becomes greater. ### Claim 18 (depends on 15) The image forming device according to claim 15, wherein the line information generation component forms a closed curve that surrounds the main image and that forms an area where a predetermined shape is formed, as the cut line. ### Claim 19 (depends on 15) The image forming device according to claim 15, wherein the line information generation component forms a closed curve having a shape of an area formed by a cut line similar to a shape of the main image. ### Claim 20 (depends on 15) The image forming device according to claim 15, further comprising: an image processing component configured to determine whether the main image is a convex image or a concave image.