# US 12,001,160 B2 · Image forming system and abnormal sheet information display method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,001,160 B2 - Document ID: US12001160B2 - Status: Granted - Kind: B2 - Application number: 17/939,181 - Filed: 2022-09-07 - Published: 2023-01-05 - Granted: 2024-06-04 - Earliest claimed: 2019-03-18 - Assignees: Konica Minolta, Inc. - Applicants: Konica Minolta, Inc. - Inventors: Kazunari Shimono - Web page: https://patentgrep.com/patent/US12001160B2 ## CPC - G03G 15/55: {Self-diagnostics; Malfunction or lifetime display} - B41J 29/38: Drives, motors, controls or automatic cut-off devices for the entire printing mechanism - G03G 15/5016: {User-machine interface; Display panels; Control console} - G03G 15/502: {relating to the structure of the control menu, e.g. pop-up menus, help screens} - G03G 15/5062: {by measuring the characteristics of an image on the copy material} - G06F 3/1208: {resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview} - G06F 3/1234: {Errors handling and recovery, e.g. reprinting (G06F3/1261 takes precedence)} - G06F 3/1259: {Print job monitoring, e.g. job status} - G06K 15/005: {only locally} - G06K 15/4065: {Managing print media, e.g. determining available sheet sizes (feeding means G06K15/16)} - H04N 1/00002: {Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for (error detection, error correction or monitoring in digital computers or digital computer components G06F11/00)} - B41J 13/0036: {in the output section of automatic paper handling systems} - G06F 3/121: {Facilitating exception or error detection and recovery, e.g. fault, media or consumables depleted} - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract An image forming system includes: a sheet feeder; an image former that forms an image on a paper sheet; a conveyor that conveys a paper sheet to a sheet ejection destination; a switcher that switches sheet ejection destinations; a reader that optically reads a paper sheet, and outputs a read image; an abnormal sheet detector that detects an abnormal paper sheet by analyzing the read image; a storage; a display; and a hardware processor that performs: ejection destination switch control to control the switcher to eject an abnormal paper sheet and a succeeding paper sheet to a second ejection destination different from a regular ejection destination; storage control, for each of the abnormal paper sheet and the succeeding paper sheet, to associate sheet information, the read image, and a stacking order with one another, and store them into the storage; and display control to cause the display to display them. ## Claims ### Claim 1 An abnormal sheet detecting method comprising: analyzing a read image acquired by reading a sheet on which an image has been formed by an image former; detecting an abnormality of the read image; and displaying, in a list format, a cause of the abnormality of an abnormal sheet on which the abnormality of the image has been detected and an item for indicating display of the read image of the abnormal sheet. ### Claim 2 (depends on 1) The abnormal sheet information display method according to claim 1, wherein the read image corresponding to the item is displayed in response to selection of the item. ### Claim 3 (depends on 2) The abnormal sheet information display method according to claim 2, wherein the read image corresponding to the item is displayed in response to a press operation on the item. ### Claim 4 (depends on 1) The abnormal sheet information display method according to claim 1, wherein a page number of the abnormal sheet is displayed on the list. ### Claim 5 (depends on 1) The abnormal sheet information display method according to claim 1, wherein a date and time of ejection of the abnormal sheet is displayed on the list. ### Claim 6 An abnormal sheet detecting device comprising: an analyzer that analyzes a read image acquired by reading a sheet on which an image has been formed by an image former; a detector that detects an abnormality of the read image; and a display that displays, in a list format, a cause of abnormality of an abnormal sheet on which the abnormality of the image has been detected and an item for indicating display of the read image of the abnormal sheet. ### Claim 7 (depends on 6) The abnormal sheet detecting device according to claim 6, wherein the display displays the read image corresponding to the item in response to selection of the item. ### Claim 8 (depends on 7) The abnormal sheet detecting device according to claim 7, wherein the display displays the read image corresponding to the item is displayed in response to a press operation on the item. ### Claim 9 (depends on 6) The abnormal sheet detecting device according to claim 6, wherein the display displays a page number of the abnormal sheet on the list. ### Claim 10 (depends on 6) The abnormal sheet detecting device according to claim 6, wherein the display displays a date and time of ejection of the abnormal sheet on the list. ### Claim 11 A non-transitory recording medium storing a computer readable program for causing a hardware processor to: analyze a read image acquired by reading a sheet on which an image has been formed by an image former; detect an abnormality of the read image; and display, in a list format, a cause of the abnormality of an abnormal sheet on which the abnormality of the image has been detected and an item for indicating display of the read image of the abnormal sheet. ### Claim 12 (depends on 11) The non-transitory recording medium according to claim 11, wherein the read image corresponding to the item is displayed in response to selection of the item. ### Claim 13 (depends on 12) The non-transitory recording medium according to claim 12, wherein the read image corresponding to the item is displayed in response to a press operation on the item. ### Claim 14 (depends on 11) The non-transitory recording medium according to claim 11, wherein the program further causes the hardware processor to: display a page number of the sheet of the abnormal sheet on the list. ### Claim 15 (depends on 11) The non-transitory recording medium according to claim 11, wherein the program further causes the hardware processor to: display a date and time of ejection of the abnormal sheet on the list. ### Claim 16 An image forming system comprising: a sheet feeder; an image former that forms an image on a sheet; a conveyor that conveys a sheet supplied from the sheet feeder to a sheet ejection destination via the image former; a reader that optically reads a sheet being conveyed by the conveyor between the image former and the sheet ejection destination, and outputs a read image; an analyzer that analyzes a read image acquired by reading a sheet on which an image has been formed by an image former; a detector that detects an abnormality of the read image; and a display that displays, in a list format, a cause of abnormality of an abnormal sheet on which the abnormality of the image has been detected and an item for indicating display of the read image of the abnormal sheet. ### Claim 17 (depends on 16) The image forming system according to claim 16, wherein the display displays an image that has been output by the reader and corresponds to the item in response to selection of the item. ### Claim 18 (depends on 16) The image forming system according to claim 16, further comprising a switcher that switches sheet ejection destinations to which sheets that have passed through the reader are ejected. ### Claim 19 (depends on 18) The image forming system according to claim 18, wherein the switcher switches sheet ejection destinations such that a preceding sheet prior to the abnormal sheet is ejected to a sheet ejection destination different from a sheet ejection destination to which the abnormal sheet and a succeeding sheet following the abnormal sheet are ejected. ### Claim 20 (depends on 19) The image forming system according to claim 19, wherein the succeeding sheet includes all sheets that are in a conveyance path on an upstream side of the switcher when the abnormal sheet is detected.