# US 11,079,708 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 11,079,708 B2 - Document ID: US11079708B2 - Status: Granted - Kind: B2 - Application number: 16/821,296 - Filed: 2020-03-17 - Published: 2020-09-24 - Granted: 2021-08-03 - Earliest claimed: 2019-03-18 - Assignees: Konica Minolta, Inc. - Applicants: Konica Minolta, Inc. - Inventors: Kazunari Shimono - Web page: https://patentgrep.com/patent/US11079708B2 ## 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 image forming system comprising: a sheet feeder; an image former that forms an image on a paper sheet; a conveyor that conveys a paper sheet supplied from the sheet feeder to a sheet ejection destination via the image former; a switcher that switches sheet ejection destinations; a reader that optically reads a paper sheet being conveyed by the conveyor between the image former and the switcher, 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 detected by the abnormal sheet detector and a succeeding paper sheet following the abnormal 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 ejected to the second ejection destination, to associate sheet information indicating whether a paper sheet is an abnormal paper sheet, the read image of the paper sheet, and a stacking order of the paper sheet at the second ejection destination with one another, and store the sheet information, the read image, and the stacking order into the storage; and display control to cause the display to display the sheet information, the stacking order, and the read image associated with one another and stored in the storage, the sheet information, the stacking order, and the read image being associated with one another on the display. ### Claim 2 (depends on 1) The image forming system according to claim 1, wherein the sheet information includes at least one of a sheet catch tray number, a date and time of sheet ejection, a job name, a page number, a cause of waste, and a sheet feed tray number. ### Claim 3 (depends on 1) The image forming system according to claim 1, wherein, in the display control, the sheet information, the stacking order, and the read image that are associated with one another are displayed, for a plurality of paper sheets, in one of a list format, a thumbnail format, and a page turning format. ### Claim 4 (depends on 1) The image forming system according to claim 1, wherein the second ejection destination is a sheet ejection destination that is determined beforehand as a sheet ejection destination of abnormal paper sheets and succeeding paper sheets. ### Claim 5 (depends on 1) The image forming system according to claim 1, wherein, in the storage control, for all paper sheets ejected to the second ejection destination, sheet information indicating whether a paper sheet is an abnormal paper sheet, a read image of the paper sheet, and a stacking order of the paper sheet at the second ejection destination are associated with one another, and are stored into the storage. ### Claim 6 (depends on 1) The image forming system according to claim 1, further comprising a removal detector that detects paper sheet removal from the second ejection destination, wherein, when the removal detector detects paper sheet removal from the second ejection destination, and a predetermined second condition is satisfied, the hardware processor deletes information stored in the storage. ### Claim 7 (depends on 1) The image forming system according to claim 1, wherein, when paper sheets relating to a plurality of jobs have been ejected to the second ejection destination, the hardware processor is allowed to perform the display control on a job-by-job basis. ### Claim 8 (depends on 7) The image forming system according to claim 7, wherein the hardware processor determines whether to perform the display control on a job-by-job basis, in accordance with selection by a user. ### Claim 9 (depends on 1) The image forming system according to claim 1, wherein, when switching the second ejection destination to a plurality of sheet ejection destinations in the ejection destination switch control, the hardware processor performs the display control for each ejection destination. ### Claim 10 (depends on 1) The image forming system according to claim 1, further comprising a transmitter that transmits information stored in the storage in the storage control, to outside. ### Claim 11 (depends on 1) The image forming system according to claim 1, further comprising a fullness detector that detects that the second ejection destination is full, wherein, when the fullness detector detects that the second ejection destination is full, the hardware processor starts the display control. ### Claim 12 (depends on 1) The image forming system according to claim 1, wherein, even when the image former is not forming an image, all succeeding paper sheets to be ejected to the second ejection destination are read by the reader. ### Claim 13 An abnormal sheet information display method, comprising: optically reading a paper sheet being conveyed with a reader on a downstream side of an image former, to acquire a read image; detecting an abnormal paper sheet by analyzing the read image; switching sheet ejection destinations on a downstream side of the reader, to eject the detected abnormal paper sheets and the succeeding paper sheet to a second ejection destination different from a regular ejection destination; storing, into a storage, sheet information indicating whether a paper sheet is an abnormal paper sheet, a read image of the paper sheet, and a stacking order of the paper sheet at the second ejection destination, the sheet information, the read image, and the stacking order being associated with one another, the storing being performed for an abnormal paper sheet and succeeding paper sheets ejected to the second ejection destination; and causing the display to display the sheet information, the stacking order, and the read image associated with one another and stored in the storage, the sheet information, the stacking order, and the read image being associated with one another on the display.