Inspection device, image forming apparatus, and display device

Abstract

To easily discriminate the position of an abnormal image in an inspection result image.SOLUTION: The inspection device includes a first reader 5051a that reads a sheet on which an image is formed, an inspection controller 510 that inspects the read image read by the first reader 5051a, a display of an operation unit 200 that displays a display screen including a first display area in which the entire read image can be displayed and a second display area in which a part of the read image is enlarged and displayed, and a controller 400 that controls the display of the operation unit 200. The controller 400 displays the read image in the first display area and enlarges and displays the first abnormal image in the second display area when the first abnormal image is present in the read image, sets the second display area to the first display state when the first abnormal image is displayed in the first display area, and sets the second display area to the second display state different from the first display state when the first abnormal image is not displayed in the first display area.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an inspection device that inspects the quality of an image printed on paper, an image forming device that includes such an inspection device, and a display device. [Background technology]

[0002] An image forming device generates a printed matter by printing an image on paper based on image data representing the image to be printed. An inspection device inspects whether the image printed on the printed matter is the image specified in the image data. The inspection device compares the image data as reference image data with the image (read image) obtained by reading the image printed on the printed matter with a sensor such as a scanner as read image data. The inspection device determines whether the image on the printed matter is the image specified in the image data based on the degree of match between the reference image data and the read image data.

[0003] Patent Document 1 describes an inspection device that inspects whether a read image read from a printed material is normal. If the inspection device determines that there is an abnormality in the read image, it displays an image showing the inspection result (inspection result image) on a display unit. The inspection result image is an enlarged display of an image of a portion determined to be abnormal in the inspection (abnormal image) based on a user operation. In addition, a reference image that serves as an inspection standard for comparison with the read image is displayed. In this way, it is easy to recognize an abnormal image. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-140540 Summary of the Invention [Problem to be solved by the invention]

[0005] However, there is room for further improvement in the way abnormal images are displayed. [Means for solving the problem]

[0006] An aspect of the present disclosure is an inspection device comprising: a reading means for reading paper on which an image is formed; an inspection means for inspecting the read image read by the reading means; a display means for displaying a display screen including a first display area capable of displaying the entire read image and a second display area for enlarging and displaying a portion of the read image; and a control means for controlling the display means, wherein the control means, when a first abnormal image is present in the read image inspected by the inspection means, displays the read image in the first display area and enlarges and displays the first abnormal image in the second display area; when the first abnormal image is displayed in the first display area, sets the second display area to a first display state; and when the first abnormal image is not displayed in the first display area, sets the second display area to a second display state different from the first display state.

[0007] Another aspect of the present disclosure is an image forming apparatus comprising: an image forming means for forming an image on paper; and an inspection device, wherein the inspection device comprises: a reading means for reading the paper on which the image has been formed; an inspection means for inspecting the read image read by the reading means; a display means for displaying a display screen including a first display area capable of displaying the entire read image; and a second display area for enlarging and displaying a portion of the read image; and a control means for controlling the display means, wherein the control means, when a first abnormal image is present in the read image inspected by the inspection means, displays the read image in the first display area and enlarges and displays the first abnormal image in the second display area; when the first abnormal image is displayed in the first display area, sets the second display area to a first display state; and when the first abnormal image is not displayed in the first display area, sets the second display area to a second display state different from the first display state.

[0008] Another aspect of the present disclosure is a display device comprising: a display means for displaying a display screen including a first display area capable of displaying the entire read image and a second display area for enlarging and displaying a portion of the read image; and a display control means for controlling the display means, wherein the display means is configured such that, when a first abnormal image is present in the read image, the read image is displayed in the first display area and the first abnormal image is enlarged and displayed in the second display area; when the first abnormal image is displayed in the first display area, the second display area is in a first display state; and when the first abnormal image is not displayed in the first display area, the second display area is in a second display state different from the first display state. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram illustrating the configuration of an image forming system. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. 10 is a diagram illustrating an example of an examination setting screen. [Figure 6] FIG. 10 is a diagram illustrating an example of a password entry screen. [Figure 7] FIG. 10 is a diagram illustrating an example of an administrator setting screen. [Figure 8] FIG. 10 is a diagram showing an example of an examination result display screen. [Figure 9] FIG. 10 is a view showing an example of an inspection result display screen in which a partial image of an inspection result image is displayed in an enlarged manner. [Figure 10] FIG. 10 is a view showing an example of an inspection result display screen in which a partial image of an inspection result image is displayed in an enlarged manner. [Figure 11] FIG. 10 is a diagram illustrating a state in which an enlarged image is not displayed. [Figure 12] FIG. 10 is a diagram illustrating an example of displaying a message. [Figure 13] FIG. 10 is an explanatory diagram of the procedure for transitioning between test result display screens. [Figure 14] FIG. 10 is an explanatory diagram of the procedure for transitioning between test result display screens. [Figure 15] 10 is a process flow diagram showing a print inspection process. [Figure 16] 10 is a process flow diagram showing a display process of an examination result display screen. [Figure 17] FIG. 10 is a view showing an example of an inspection result display screen when a plurality of abnormal images are displayed in the partial images. [Figure 18] FIG. 10 is a view showing an example of an inspection result display screen when no abnormal image is displayed in the partial images. DETAILED DESCRIPTION OF THE INVENTION

[0010] Preferred embodiments of the present disclosure will be described below with reference to the accompanying drawings. Note that the following embodiments do not limit the scope of the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution.

[0011] (Image forming system) 1 is a configuration diagram of an image forming system including an inspection device of this embodiment. The image forming system 1 includes an operation unit 200, a printer 300 which is an image forming device (also called a printing device), a controller 400, an inspection device 500, a stacker 600, and a finisher 700 which is a post-processing device.

[0012] The operation unit 200 is a user interface that includes an input interface and an output interface. The input interface is, for example, a key button, a touch panel, etc. The output interface is, for example, a display, a speaker, etc. The operation unit 200 transmits instructions and data input from the input interface to the controller 400. In addition, the operation unit 200 outputs information from the output interface in response to instructions from the controller 400.

[0013] The controller 400 controls the operations of the printer 300, the inspection device 500, the stacker 600, and the finisher 700 based on instructions and data input from the operation unit 200 or instructions and data acquired from an external device via a network. For example, when forming an image, the controller 400 transmits an image formation instruction to the printer 300. Details of the controller 400 will be described later.

[0014] (Printer) Although the printer 300 of this embodiment is a color image forming apparatus that prints color images on paper, the present disclosure is also applicable to a monochrome image forming apparatus that prints monochrome images. The printer 300 includes image forming units Y, M, C, and K, an intermediate transfer body 306, a transfer unit 307, a fuser 308, paper feed cassettes 311 and 312, and a paper feed mechanism. The image forming unit Y forms a yellow (Y) image. The image forming unit M forms a magenta (M) image. The image forming unit C forms a cyan (C) image. The image forming unit K forms a black (K) image. The intermediate transfer body 306 transfers the images of each color formed by the image forming units Y, M, C, and K in a superimposed manner. The transfer unit 307 transfers the image carried on the intermediate transfer body 306 to paper. The fuser 308 fixes the image transferred to the paper.

[0015] Each of the image forming units Y, M, C, and K has the same configuration and forms images by similar operations. Here, the configuration of the image forming unit Y will be described, and a description of the configurations of the image forming units M, C, and K will be omitted. The image forming unit Y includes a photosensitive drum 301Y, a charger 302Y, an exposure unit 303Y, and a developing unit 304Y.

[0016] The photosensitive drum 301Y is a drum-shaped photosensitive element having a photosensitive layer on its surface. During operation, the photosensitive drum 301Y rotates around its drum axis in the direction of arrow R1. The charger 302Y uniformly charges the surface of the rotating photosensitive drum 301Y. The exposure unit 303Y acquires image data representing a yellow image from the controller 400 and outputs a laser beam in accordance with the image data. The laser beam output from the exposure unit 303Y scans the charged surface of the photosensitive drum 301Y in the drum axis direction. As the laser beam scans the surface of the rotating photosensitive drum 301Y, an electrostatic latent image corresponding to the yellow image data is formed on the surface of the photosensitive drum 301Y. The developing unit 304Y contains a yellow developer (e.g., toner) and develops the electrostatic latent image formed on the photosensitive drum 301Y with the developer. As a result, a yellow image is formed on the surface of the photosensitive drum 301Y. The developing unit 304Y is configured to be constantly replenished with developer from a toner cartridge (not shown).

[0017] Similarly, a magenta image is formed on the photosensitive drum 301M of the image forming station M. A cyan image is formed on the photosensitive drum 301C of the image forming station C. A black image is formed on the photosensitive drum 301K of the image forming station K.

[0018] Intermediate transfer body 306 is an endless belt member that rotates in the direction of arrow R2. Intermediate transfer body 306 is in contact with each of photosensitive drums 301Y, 301M, 301C, and 301K. As intermediate transfer body 306 rotates, images of each color are transferred from each of photosensitive drums 301Y, 301M, 301C, and 301K in order so as to be superimposed on top of each other. In this way, intermediate transfer body 306 carries a full-color image. As intermediate transfer body 306 rotates, it conveys the full-color image it carries to transfer unit 307.

[0019] Paper sheets are stored in paper feed cassettes 311 and 312, and are transported from paper feed cassettes 311 and 312 to transfer unit 307 by a feeding mechanism. The paper is transported in accordance with the timing at which the image carried on intermediate transfer body 306 is transported to transfer unit 307. Transfer unit 307 transfers the image from intermediate transfer body 306 to the paper. A cleaner 309 is disposed downstream of transfer unit 307 in the rotation direction of intermediate transfer body 306. Cleaner 309 removes developer remaining on intermediate transfer body 306 after transfer.

[0020] The paper onto which the image has been transferred is transported from transfer unit 307 to fuser 308. Fuser 308 is equipped with a fuser roller having a heater and a pressure roller. Fuser 308 melts and fuses the image onto the paper using heat from the heater and pressure from the pressure roller.

[0021] Downstream of the fuser 308 in the paper transport direction are provided transport paths 313, 314, and 315, a duplex transport path 316, and discharge rollers 317. The paper that has passed through the fuser 308 is temporarily transported from transport path 313 to transport path 314. After the trailing edge of the paper passes through transport path 313, the transport direction is reversed and the paper is transported from transport path 315 to discharge rollers 317. Through this transport, the paper is discharged from the printer 300 by discharge rollers 317 with the side on which the image has been formed facing downward (face down). The printed matter, which is the paper after image formation and discharged from the printer 300 by discharge rollers 317, is delivered to the inspection device 500. Note that when the paper is discharged with the side on which the image has been formed facing upward (face up), the paper that has passed through the fuser 308 is not transported to transport path 313 but is directly transported to discharge rollers 317 and discharged.

[0022] When double-sided printing is performed on a sheet of paper, the rear end of the sheet conveyed to conveying path 314 passes through conveying path 313, and then the sheet is conveyed to double-sided conveying path 316. The sheet is conveyed again to transfer unit 307 via double-sided conveying path 316. By passing through conveying path 314 and double-sided conveying path 316, the side of the sheet on which the image has been formed is inverted. The image is formed on the inverted side of the sheet by image transfer processing by transfer unit 307 and fixing processing by fixing device 308. The sheet with images formed on both sides is discharged from printer 300 by discharge rollers 317 as a printed matter and delivered to inspection device 500.

[0023] (Inspection equipment) The inspection device 500 includes a conveying path 501, an inspection control unit 510, a first reading unit 5051a, a second reading unit 5051b, flow reading glasses 5053a and 5053b, conveying rollers 502 and 503, and a paper detection sensor 504. The inspection device 500 functions as a reading device that reads images on paper. The inspection control unit 510 controls the operation of the inspection device 500 under the control of the controller 400. The inspection control unit 510 will be described in detail later. The first reading unit 5051a and the second reading unit 5051b are disposed in positions facing each other across the conveying path 501. The flow reading glass 5053a is provided between the first reading unit 5051a and the conveying path 501. The flow reading glass 5053b is provided between the second reading unit 5051b and the conveying path 501. Conveying rollers 502 and 503 convey the printed matter onto a conveying path 501 .

[0024] The inspection device 500 detects printed materials transported on the transport path 501 using the paper detection sensor 504, and reads the images printed on the printed materials using the first reading unit 5051a and the second reading unit 5051b. The first reading unit 5051a and the second reading unit 5051b send the reading results of the printed materials to the inspection control unit 510. The inspection control unit 510 inspects the quality of the images printed on the printed materials based on the image data used when the printer 300 printed the image on the paper and the reading results of the printed materials by the first reading unit 5051a and the second reading unit 5051b. Because the first reading unit 5051a and the second reading unit 5051b are arranged opposite each other across the transport path 501, images printed on both sides of the printed materials can be read in a single transport of the printed materials. The printed materials from which the images have been read are transported from the inspection device 500 to the stacker 600.

[0025] (stacker and finisher) The stacker 600 includes a large-capacity tray 610 and a purge tray 620. The stacker 600 discharges printed materials to one of the large-capacity tray 610, the finisher 700, or the purge tray 620 based on instructions from the controller 400 and the results of a quality inspection by the inspection control unit 510. For example, the stacker 600 discharges printed materials to the purge tray 620 if the image printed on the paper is determined to be abnormal in the quality inspection.

[0026] The finisher 700 includes a printed material transport section 710 including a plurality of transport rollers and a transport path, an upper discharge tray 701, a middle discharge tray 702, and a lower discharge tray 703. The printed material transport section 710 includes switching mechanisms 711 and 712 for switching the discharge destination of the printed materials. The finisher 700 sequentially takes in printed materials from the stacker 600 and discharges the printed materials to either the upper discharge tray 701, the middle discharge tray 702, or the lower discharge tray 703 in response to instructions from the controller 400. The finisher 700 may also be configured to perform post-processing such as stapling to bind multiple printed materials together, binding the bound printed materials, and trimming the bound printed materials.

[0027] (controller) FIG. 2 is an explanatory diagram of the configuration of the controller 400. In addition to the operation unit 200, printer 300, and inspection device 500, the controller 400 is connected to a storage 4100 and a power supply control unit 4500. The controller 400 includes a storage I / F 4318, an operation unit I / F 4306, a power supply control I / F 4308, an inspection unit I / F 4317, a printer communication I / F 4307, and a printer I / F 4316 as interfaces with these connected units. The controller 400 also includes a communication I / F 4305 for communicating with an external device via a network (a LAN (Local Area Network) in FIG. 2). The storage I / F 4318, the communication I / F 4305, the operation unit I / F 4306, the power supply control I / F 4308, the inspection unit I / F 4317, and the printer communication I / F 4307 are connected to a system bus 4319. The printer I / F 4311 is connected to the image bus 4311. The system bus 4319 and the image bus 4311 are connected via a bus I / F 4310.

[0028] The controller 400 is an information processing device including a CPU (Central Processing Unit) 4301, a ROM (Read Only Memory) 4302, and a RAM (Random Access Memory) 4303. The CPU 4301 controls the operation of the image forming system 1 by executing computer programs stored in the ROM 4302. The RAM 4303 provides a working area for the CPU 4301 when executing processing. The RAM 4303 is also used as an image memory for temporarily storing image data and the like. The CPU 4301, the ROM 4302, and the RAM 4303 are also connected to a system bus 4319. A NVRAM (Non-Volatile RAM) 4304 and a timer 4309 are also connected to the system bus 4319. The NVRAM 4304 stores various control parameters. The timer 4309 keeps the current time and monitors the passage of a set time.

[0029] The operation unit I / F 4306 controls communication with the operation unit 200. The operation unit I / F 4306 accepts inputs such as print jobs, commands, and print settings from the operation unit 200 to the controller 400, and transmits them to the CPU 4301. Under the control of the CPU 4301, the operation unit I / F 4306 transmits data for displaying various screens and the status of the image forming system 1 to the operation unit 200.

[0030] The printer communication I / F 4307 controls communication with the printer 300 under the control of the CPU 4301. The power control I / F 4308 instructs the power control unit 4500 to supply / stop various types of power under commands from the CPU 4301. The power control unit 4500 supplies power to the printer 300. The inspection unit I / F 4317 controls communication with the inspection device 500 under the control of the CPU 4301. The storage I / F 4318 controls communication with the storage 4100 under the control of the CPU 4301. The communication I / F 4305 is connected to a network and controls communication such as sending and receiving emails and inputting and outputting PDL data from external devices. The communication I / F 4305 also has an NVRAM (not shown) that stores various parameters related to communication control such as MAC addresses.

[0031] The bus I / F 4310 is a bridge that connects the system bus 4319 and the image bus 4311. In order to transfer image data to the printer 300, the image bus 4311 is connected to an image compression unit 4312, an image rotation unit 4313, and a RIP (Raster Image Processor) unit 4314 in addition to the printer I / F 4316.

[0032] An image compression unit 4312 performs compression and decompression processing for JPEG, JBIG, MMR, MH, etc. An image rotation unit 4313 performs image rotation processing. A RIP unit 4314 expands PDL code into a bitmap raster image. A printer I / F 4316 transmits image data to the printer 300. This image data is generated by the controller 400 by performing image processing for the printer 300, such as printer 300 correction and resolution conversion, on the image data to be output to the printer 300.

[0033] (Inspection Control Unit) 3 is a diagram illustrating the configuration of an inspection control unit 510 provided in the inspection device 500. The inspection control unit 510 controls the operations of the first reading unit 5051a and the second reading unit 5051b. The inspection control unit 510 performs processes such as analyzing the reading results (read images) by the first reading unit 5051a and the second reading unit 5051b, controlling the operation of the inspection device 500, and communicating with the controller 400. The inspection device 500 transmits the inspection results of the printed matter to the controller 400. The inspection control unit 510 is connected to the controller 400 and to a storage 5011 for storing misalignment correction profiles and the like.

[0034] The inspection control unit 510 includes a CPU 5001, a ROM 5002, a RAM 5003, a storage I / F 5004, a motor control unit 5009, a read image processing unit 5008, an image processing unit 5006, an RTC 5012, a host I / F 5007, and a sensor control unit 5010. Each unit is connected to a system bus 5005. The read image processing unit 5008 is connected to a first reading unit 5051a via a first reading I / F 5052a and to a second reading unit 5051b via a second reading I / F 5052b. The RTC 5012 is a real-time clock that keeps the current time with high accuracy. The host I / F 5007 controls communication with the inspection unit I / F 4317 of the controller 400. When the inspection control unit 510 and the controller 400 communicate, data is sent and received between the host I / F 5007 and the inspection unit I / F 4317. For example, the host I / F 5007 acquires image data used in the image forming operation of the printer 300 from the controller 400 .

[0035] The CPU 5001 controls the operation of the inspection device 500 by executing a computer program stored in the ROM 5002. The RAM 5003 provides a working area when the CPU 5001 executes processing. The storage I / F 5004 controls communication with a storage 5011 connected to the inspection control unit 510. The storage 5011 is a large-capacity storage device such as an HDD or SSD. Image data acquired from the controller 400 is saved in the storage 5011 as reference image data.

[0036] The read image processing unit 5008, under the control of the CPU 5001, controls the first reading unit 5051a via the first reading I / F 5052a and acquires the read result of the image of the printed matter from the first reading unit 5051a. The read image processing unit 5008, under the control of the CPU 5001, controls the second reading unit 5051b via the second reading I / F 5052b and acquires the read result of the image of the printed matter from the second reading unit 5051b. Under the control of the CPU 5001, the read image processing unit 5008 performs magnification processing, gamma correction processing, etc. on the read results of the image of the printed matter acquired from the first reading unit 5051a and the second reading unit 5051b to generate read image data and store it in the RAM 5003. The read image data is the read image data to be inspected.

[0037] The first reading unit 5051a and the second reading unit 5051b are configured to have, for example, a sensor array, and are capable of reading the entire area of ​​the printed material being transported on the transport path 501. The first reading unit 5051a reads an image on the first side of the printed material, and the second reading unit 5051b reads an image on the second side of the printed material. The first reading unit 5051a and the second reading unit 5051b are each composed of a light-emitting unit and a light-receiving unit. The light-emitting unit is composed of, for example, a white LED (Light Emitting Diode). The light-receiving unit is composed of, for example, a CMOS sensor with an RGB color filter. The light-emitting unit irradiates light onto the printed material being transported along the transport path 501 under the control of the CPU 5001. The light-receiving unit separates the light reflected by the printed material into three RGB color components using a color filter and receives the light, and outputs read image data as the light-receiving result. The read image data is sent to the read image processing unit 5008.

[0038] The motor control unit 5009 controls the operation of various motors provided in the inspection device 500 under the control of the CPU 5001. The sensor control unit 5010 controls the operation of various sensors provided in the inspection device 500 under the control of the CPU 5001, and notifies the CPU 5001 of the detection results by the sensors. For example, the sensor control unit 5010 notifies the CPU 5001 of the detection result of the paper by the paper detection sensor 504. This notification enables the CPU 5001 to detect that a printed material has been handed over from the printer 300 to the inspection device 500. When the CPU 5001 detects that a printed material has been handed over from the printer 300 to the inspection device 500, it prepares the first reading unit 5051a and the second reading unit 5051b to read the printed material.

[0039] The image processing unit 5006 is an inspection unit that, under the control of the CPU 5001, compares the reference image data stored in the storage 5011 with the scanned image data stored in the RAM 5003 to inspect the quality of the printed matter. The reference image data may be the image data used for image formation by the printer 300 as described above, or it may be image data obtained by scanning a reference image in advance before the quality inspection. During the comparison, the image processing unit 5006 performs a correction process on the reference image data using calibration parameters. If the image printed on the paper is determined to be abnormal by the quality inspection, information such as the location of the abnormal portion (abnormal image) and the type of abnormal image (such as a dot image or a streak image) is obtained. Information indicating the results of the quality inspection is sent to the controller 400.

[0040] (Inspection Settings) 4 is an example diagram of an operation screen displayed on the display of the operation unit 200 during print inspection processing, which generates a printed material and inspects its quality. Using the operation screen displayed on the display, the user can set quality inspection items using the input interface of the operation unit 200 and instruct execution of the print inspection processing. The inspection device 500 performs the print inspection processing in accordance with the set quality inspection items.

[0041] This operation screen allows the user to set the printing process and whether or not to perform a quality inspection. Using buttons B101 to B105 displayed on this setting screen, the user can select the color (color / black and white) to print, the type of paper, the destination for printed materials, and whether or not to perform calibration.

[0042] Button B101 is an inspection setting button, and when pressed, an inspection setting screen such as that shown in FIG. 5 is displayed on the display of the operation unit 200. Button B102 is a print start button, and when pressed, formation of a printed material begins without performing quality inspection by the inspection device 500. Button B103 is a cancel button, and when pressed, the settings are canceled and a predetermined initial screen is displayed on the display of the operation unit 200. Button B104 is an output tray setting button for setting the output destination of the printed material. Button B105 is a paper selection button for selecting the paper to be used for printing, and when pressed, it is possible to check and change the size and basis weight of the paper stored in the paper feed cassettes 311 and 312, and to specify the paper feed source.

[0043] 5 is a view showing an example of an inspection setting screen that is displayed on the display of the operation unit 200 when the button B101 is pressed. The inspection setting screen is a screen for setting the inspection area and type of inspection where inspection such as quality inspection by the inspection device 500 will be performed.

[0044] Area B401 of the inspection setting screen is a print image to be printed on paper and an inspection setting area display section. Area B401 displays an image from a print job. The user sets the inspection area by selecting an image display area in area B401 while selecting an inspection area type button shown in buttons B402a to B402d. Button B402a is a priority inspection area button for setting an area where high-precision inspection is performed (priority inspection area). Button B402b is a standard inspection area button for setting an area where standard inspection is performed (standard inspection area). Button B402c is an inspection exclusion area button for specifying an area where inspection is not performed (inspection exclusion area). Button B402d is a data inspection area button for recognizing and inspecting areas such as characters and barcodes (data inspection area). Note that the types of inspection areas are not limited to these four types.

[0045] Buttons B403a and B403b are inspection level setting buttons for setting the inspection level for each inspection area. The inspection level is set in stages of inspection accuracy, for example, inspection levels 1 to 5. The user can set the inspection level for each area set using buttons B403a and B403b. Button B403a is a button for setting the inspection level for the priority inspection area. Button B403b is a button for setting the inspection level for the standard inspection area. In this example, inspection level 1 has the lowest inspection accuracy, and the inspection accuracy increases as the inspection level number increases. Button B403e is a verification data selection button. Button B403e is used to select a data file (verification data) to be verified against the decoded results in the area specified by button B402d. Verification data is data representing an image used to determine whether an image printed on paper is normal. Verification data is, for example, a user image including an image of a barcode or serial number.

[0046] Button B404 is an administrator settings button. When button B404 is pressed, if the inspection result indicates an abnormality, the display transitions to a password entry screen for transitioning to a screen for switching access to the verification data and submitted data. The submitted data corresponds to, for example, reference image data stored in storage 5011. The submitted data is data representing an image in which variable data is embedded. The submitted data is, for example, PDF data containing images of barcodes and serial numbers generated based on a data file in CSV (Comma Separated Values) format. Button B405 is an inspection start button. When button B405 is pressed, the print inspection process starts. Button B406 is a button for returning to the original screen. When button B406 is pressed, the inspection setting process is canceled, and the display returns to the print setting screen of Figure 4.

[0047] For example, the user can select the area where high-precision inspection is to be performed by selecting button B402a and selecting the area where high-precision inspection is to be performed from area B401 using a mouse, touch panel, etc. In the example of Fig. 5, areas with shapes such as circles and crosses are selected as priority inspection areas where high-precision inspection is to be performed. Cylindrical and triangular areas do not require high-precision inspection, so they are set as areas excluded from inspection.

[0048] By setting the inspection level in this way, it is possible to reduce the memory and processing power required for the inspection compared to inspecting the entire image without setting the inspection level. Also, by setting the inspection level in stages, for example, from inspection level 1 to inspection level 5, it is possible to reduce the memory and processing power required for the inspection compared to always performing inspection at a high inspection level of accuracy.

[0049] FIG. 6 is a diagram illustrating a password entry screen that appears on the display when button B404 is pressed. The password entry screen includes a password entry section B604, a confirm button B605, and a back button B606. A user enters a password into the password entry section B604 using an input interface. When the confirm button B605 is pressed, an administrator settings screen is displayed on the display, provided that the password is entered correctly. The administrator settings screen is a screen that allows the user to enable or disable access to verification data and submitted data when the inspection results indicate an abnormality. The back button B606 is a button for returning to the original screen; when pressed, the password is canceled and the display returns to the inspection settings screen of FIG. 5.

[0050] Fig. 7 is a diagram showing an example of the administrator setting screen. As described above, the administrator setting screen is displayed on the display only when the correct password is entered on the password entry screen of Fig. 6. The administrator setting screen is used to set the display of shortcut key buttons for displaying data related to abnormal images.

[0051] The button B702 is a submission data confirmation setting button. When the button B702 is set to ON, a shortcut button for accessing the submission data is displayed if the inspection results indicate an abnormality. The shortcut button for accessing the submission data will be described later. The button B703 is a verification data confirmation setting button. When the button B703 is set to on, a shortcut button for accessing the verification data when the test results indicate an abnormality is displayed. The shortcut button for accessing the verification data will be described later. The button B704 is a button for setting editing of the verification data. When the button B704 is set to on, a shortcut button for editing the verification data when the test results indicate an abnormality is displayed. The shortcut button for editing the verification data will be described later. Button B705 is a confirmation button. Pressing button B705 enables the setting changes made using buttons B702, B703, and B704, and returns the display to the examination setting screen of FIG. 5. Button B706 is a button for returning to the original screen. Pressing button B706 cancels the setting changes, and returns the display to the examination setting screen of FIG. 5.

[0052] (Screen displayed when test results show an abnormality) 8 is an example diagram of the inspection result display screen when the inspection result of the printed matter indicates an abnormality. The inspection result display screen is displayed on the display when the inspection result by the inspection device 500 indicates that there is an abnormality in the image printed on the paper. The inspection result display screen displays an image showing the position of the image determined to be abnormal (abnormal image), the content of the abnormal image, the degree of the abnormal image, a link to related information on the content of the abnormal image, etc.

[0053] Area B801 displays an inspection result image including the entire image of the printed matter determined to be abnormal by inspection and the position of the abnormal image within the entire image (abnormality location display area). Area B801 is a display region capable of displaying the entire image of the scanned image. Area B801 includes areas B802a and B803a as abnormality location display areas. The abnormality location display area indicates the position of the abnormal image within area B801.

[0054] Area B802a indicates the position of the first abnormal image within the entire image that was determined to be abnormal by inspection. The first abnormal image is an abnormal image in the area set as the "standard inspection area" or "focused inspection area" on the inspection setting screen in FIG. 5. Area B803a indicates the position of the second abnormal image within the entire image that was determined to be abnormal by inspection. The second abnormal image is an abnormal image in the area set as the "data inspection area" on the inspection setting screen in FIG. 5.

[0055] Image B802b is an enlarged image of area B802a. Image B803b is an enlarged image of area B803a. Image B803c is the decoded result of the characters in area B803a. Image B803d shows the comparison data that is the comparison result between the characters in area B803a and the decoded result.

[0056] In this way, image B802b and images B803b to B803d show the enlarged image of the abnormal image, the decoded result, and the comparison data. That is, images B802b and B803b to B803d show the content of the abnormal image and the degree of abnormality. Images B802b and B803b to B803d are displayed in a display area different from area B801, which displays an enlarged portion of the scanned image.

[0057] Image B805 is a left and right button for switching between pages of a printed matter that have been determined to be abnormal by inspection. Clicking either the left or right button of image B805 switches between pages of a printed matter that have been determined to be abnormal. For example, clicking the left button switches the page of the printed matter that has been determined to be abnormal to the previous page, and clicking the right button switches the page of the printed matter that has been determined to be abnormal to the next page. Button B806 is an inspection end button. After checking the inspection results of the printed matter, the user can press button B806 to end the inspection of the printed matter.

[0058] Button B808 is a shortcut button to the submitted data. Button B808 is displayed when button B702, which is the submitted data confirmation setting button, is set to on. When button B808 is pressed at the user's discretion, the display transitions to the inspection setting screen of FIG. 5. This allows the user to immediately check the image (scanned image) from the print job displayed in area B401. Note that when button B808 is pressed, the submitted data file (image from the print job) corresponding to the page determined to be abnormal may be displayed in an image viewer or the like, separately from the inspection setting screen of FIG. 5.

[0059] Button B809 is a shortcut button to the verification data for data inspection. Button B809 is displayed when button B703, the verification data confirmation setting button, is set to on. When button B809 is pressed at the user's discretion, the verification data selected with button B403e, the verification data selection button, is displayed in read-only format, allowing the user to confirm it. Button B808, the submitted data confirmation button, and button B809, the verification data confirmation button, are always displayed when the inspection results indicate an abnormality, regardless of the inspection settings or type of inspection.

[0060] The button B810 is a shortcut button for editing the verification data. The button B810 is displayed when the verification data edit setting button B704 is set to on. When the user presses the button B810, the verification data selected by the verification data selection button B403e is displayed and can be edited by the user.

[0061] In this way, buttons B808, B809, and B810 are shortcut buttons for displaying data related to the content of the abnormal image. By pressing buttons B808, B809, and B810, the user can check detailed information related to the abnormal image.

[0062] The text box B812 displays the overall display ratio (%) of the inspection result image displayed in area B801. The display ratio represents the ratio of the image displayed in area B801 when the entire inspection result image is 100%, i.e., the scale ratio. In the example of FIG. 8, the display ratio is 100%. The display ratio can be changed by user operation. If the display ratio is set to less than 100%, a part of the inspection result image (partial image) is enlarged and displayed in area B801 at a ratio according to the display ratio.

[0063] In FIG. 8, the user can easily recognize the abnormal image condition from image B802b, which is an enlarged image of area B802a. The user can compare the submitted data with image B802b by pressing button B808 to view the original submitted data. The user can easily recognize the abnormal image condition from image B803b, which is an enlarged image of the text in area B803a. The user can confirm both the submitted data and the verification data from displayed images B803c and B803d. In other words, by pressing buttons B808, B809, and B810 as appropriate, the user can easily confirm whether there is an error in the submitted data image or the verification data and make appropriate corrections as necessary. This shortens the time required for confirmation and correction, and ultimately reduces the time and effort required to resolve the abnormality.

[0064] (partial image display) 8 are displayed if there is an abnormality in the test results, regardless of the type of test. As described above, text box B812 displays the overall display rate (%) of the test result image displayed in area B801. By changing the display rate displayed in text box B812 to less than 100%, a partial image of the test result image is displayed enlarged.

[0065] 9 and 10 are illustrations of the test result display screen in which a partial image of the test result image in Fig. 8 is enlarged and displayed. In this example, the display ratio is set to 35%. The partial image of 35% of the test result image is enlarged and displayed to fit the size of areas B801a and B801b.

[0066] Area B801a in Fig. 9 displays an enlarged partial image at the top left of the inspection result image in area B801 in Fig. 8. Scroll bars B1001a and B1001b are provided for area B801a. By operating the horizontal scroll bar B1001a, the position of the partial image in the inspection result image is moved left and right within the inspection result image. By operating the vertical scroll bar B1001b, the position of the partial image in the inspection result image is moved up and down within the inspection result image.

[0067] 9, the first abnormal image in area B802a displayed in the partial image displayed in the display region of area B801a is displayed in the normal display state as an enlarged image B802b. The second abnormal image in area B803a not displayed in the partial image displayed in the display region of area B801a is displayed in the dark as an enlarged image B803b is not displayed in the normal display state.

[0068] Area B801b in Fig. 10 displays an enlarged partial image at the bottom left of the test result image in area B801 in Fig. 8. By operating the vertical scroll bar B1001a on the screen in Fig. 9 and moving the scroll bar B1001a downward to scroll area B801, the test result display screen in Fig. 10 is displayed. In Fig. 10, the second abnormal image in area B803a displayed in the partial image displayed in area B801b is displayed in its normal display state as an enlarged image B803b. The first abnormal image in area 802a not displayed in the partial image displayed in area B801b is displayed in black, with its enlarged image B802b not displayed in its normal display state.

[0069] 9 and 10, the enlarged images corresponding to the abnormal images that are not displayed in the enlarged partial image displayed in area B801 are displayed in a darkened state. By displaying the test results in this manner, the enlarged images of the abnormal images that are not displayed in the partial image of the test result image can be visually clearly distinguished, improving user visibility and workability.

[0070] The display state of the enlarged image of the abnormal image not displayed in the partial image is not limited to a blackout display, as long as it is different from the normal display state. For example, the color of the frame around the enlarged image may be a color (e.g., red) different from the normal display. Also, a mark such as an X may be added to the enlarged image to emphasize that it is an enlarged image of an abnormal image not displayed in the partial image. Alternatively, when a mouse pointer is used as described below, the image density of the enlarged image may change (e.g., the image density becomes lighter) when the mouse pointer is brought closer to the enlarged image.

[0071] An enlarged image of an abnormal image that is not displayed in a partial image does not have to be displayed. Fig. 11 is an example diagram showing a state in which an enlarged image of an abnormal image that is not displayed in a partial image is not displayed. In addition, a message indicating that the enlarged image of an abnormal image that is not displayed in a partial image may be attached to the enlarged image. Fig. 12 is an example diagram showing a case in which a message is displayed. The message in Fig. 12 is displayed in a speech bubble, but may also be displayed in a frame connected by a lead-in line, for example.

[0072] Figures 13 and 14 are both explanatory diagrams of the procedure for transitioning from the test result display screen of Figure 9 to the test result display screen of Figure 10. The screen configuration of Figure 13 is the same as the screen configuration of Figure 9, and the screen configuration of Figure 14 is the same as the screen configuration of Figure 10.

[0073] In the first step, scroll bars B1001a and B1001b are used. For example, by moving the vertical scroll bar B1001b downward, the display of the inspection result image shifts from FIG. 13 to FIG. 14. The scroll bar B1001b is moved using, for example, the mouse pointer B1201. That is, the mouse pointer B1201 is moved to the top of the scroll bar B1001b, and in this state, the mouse pointer B1201 is dragged to move the scroll bar B1001b downward. The mouse pointer B1201 is moved or dragged using a mouse or a touch panel. The second procedure is a method of selecting an abnormal image using the mouse pointer B 1201. The mouse pointer B 1201 is moved or selected using a mouse or a touch panel.

[0074] As described above, the mouse pointer B1201 is also used to change the display state of the enlarged image of the abnormal image that is not displayed in the partial image. In FIG. 13, when the mouse pointer B1201 is positioned over image B803b, the display state of the enlarged image of the abnormal image that is not displayed in the partial image of area B801 is changed. Here, the image density of image B803b changes. In FIG. 14, when the mouse pointer B1201 is positioned over image B802b, the display state of the enlarged image of the abnormal image that is not displayed in the partial image of area B801 is changed. Here, the image density of image B802b changes.

[0075] Furthermore, by selecting an enlarged image of an abnormal image with the mouse pointer B1201, the partial image of the inspection result image in area B801 may be moved to the image of the portion including the selected abnormal image. For example, when image B803b is clicked (selected) with the mouse pointer B1201 in Fig. 13, the partial image in area B801 switches from the image in Fig. 13 to the image in Fig. 14. When image B802b is clicked (selected) with the mouse pointer B1201 in Fig. 14, the partial image in area B801 switches from the image in Fig. 14 to the image in Fig. 13.

[0076] In some cases, the entire inspection result image is displayed in area B801, as shown in Fig. 8. In this case, the image in area B801 switches from the entire inspection result image to an image in which a portion including the abnormal image selected by mouse pointer B1201 is enlarged. For example, if image B802b is selected by the mouse pointer in the state of Fig. 8, the entire image in area B801 switches to the partial image of area B801 in Fig. 9. If image B803b is selected by the mouse pointer in the state of Fig. 8, the entire image in area B801 switches to the partial image of area B801 in Fig. 10.

[0077] (Print inspection processing) 15 is a process flow diagram showing the print inspection process. This process is executed by cooperation between the controller 400 (CPU 4301) and the inspection control unit 510 (CPU 5001) of the inspection device 500. This process is started by pressing the inspection start button B405 on the inspection setting screen of FIG.

[0078] When the button B405 is pressed by the operation unit 200, the controller 400 transmits job information of the print job, including paper information of the paper used for printing, inspection settings, discharge destination, etc., to the inspection device 500 (S901). The inspection control unit 510 acquires the job information from the controller 400 (S902).

[0079] The inspection control unit 510 determines whether the job requires inspection based on the inspection settings of the acquired job information (S903). If the job does not require inspection (S903: N), the inspection control unit 510 notifies the controller 400 that preparation for the print job is complete (S907).

[0080] If the job requires inspection (S903: Y), the inspection control unit 510 transmits a request to the controller 400 to send reference image data for inspection determination (S904). In response to the request to send the reference image data acquired from the inspection device 500, the controller 400 transmits the image data of the print job to the inspection device 500 as reference image data (S905). The inspection control unit 510 acquires the reference image data from the controller 400 and stores it in the storage 5011 (S906). Upon completion of acquisition of the reference image data, the inspection control unit 510 notifies the controller 400 that preparation for the print job is complete (S907).

[0081] When the controller 400 receives a preparation completion notification from the inspection device 500, it executes the printing process using the printer 300 (S908). The controller 400 repeats the printing process until the number of printed sheets specified in the print job is obtained (S909: Y). When the number of printed sheets specified in the print job is obtained (S909: N), the controller 400 waits until it receives the inspection results from the inspection device 500.

[0082] The inspection control unit 510 determines whether or not a printed matter has arrived at the conveyance path 501 of the inspection device 500 based on the detection result of the paper detection sensor 504 (S910). If the printed matter has not arrived (S910: N), the inspection control unit 510 waits until the printed matter arrives. If the printed matter has arrived (S910: Y), the inspection control unit 510 sequentially reads the conveyed printed matter using the first reading unit 5051a and the second reading unit 5051b. The inspection control unit 510 performs image inspection by comparing read image data representing the read result with reference image data using the image processing unit 5006 (S911). The inspection control unit 510 stores the inspection result from the image processing unit 5006 in the RAM 5003 (S912).

[0083] Thereafter, the inspection control unit 510 determines whether or not there is printing on the next page based on the job information acquired from the controller 400 (S913). If there is a next page (S913: Y), the inspection control unit 510 executes the processes from S910 onwards again to repeat the inspection process. If there is no next page (S913: N), the inspection control unit 510 transmits the inspection results stored in RAM 5003 in the process of S912 to the controller 400 (S914).

[0084] The controller 400 acquires the inspection results from the inspection device 500 (S915). The controller 400 determines whether or not there is an abnormality in the acquired inspection results (S916). If there is no abnormality (S916: N), that is, if the image printed on the paper is normal, the controller 400 ends the print inspection process. If the image printed on the paper is abnormal (S916: Y), the controller 400 controls the operation unit 200 to display an inspection result display screen on the display (S917). After the user confirms the location of the abnormal image on the inspection result display screen, the controller 400 ends the print inspection process by pressing button B806, which is an inspection end button.

[0085] Fig. 16 is a processing flow diagram showing the display processing of the test result display screen. This processing is performed in a state where the controller 400 displays the test result display screen of Fig. 8 on the display by the processing of S917. Note that if there is only one abnormality, only one enlarged image will be displayed.

[0086] The controller 400 determines whether or not to display a partial image of a part of the inspection result image (S1301). This determination is made, for example, based on whether or not the display ratio of the text box B812 in FIG. 8 is set to less than 100%. If the partial image is to be displayed (S1301: Y), the controller 400 displays the partial image of the inspection result image according to the display ratio (S1302). As a result, the partial image of the inspection result image is enlarged and displayed in the area B801, as shown in FIG. 10 as an example. In addition, scroll bars B1001a and B1001b are displayed. If the partial image is not to be displayed (S1301: N), the controller 400 determines whether or not to end the inspection (S1306).

[0087] The controller 400, which has displayed the partial image, performs a brightness display of the enlarged image of the abnormal image (S1303). The controller 400 performs the brightness display by displaying the enlarged image of the abnormal image displayed in the displayed partial image in a normal display state and displaying the enlarged image of the abnormal image not displayed in the partial image in a darkened state.

[0088] The controller 400 determines whether the examination result image has been scrolled using the scroll bars B1001a and B1001b (S1304). If the examination result image has been scrolled (S1304: Y), the controller 400 returns to the processing of S1302 and displays a partial image of the examination result image according to the scroll direction and scroll amount. In addition, the enlarged image of the abnormal image is displayed in a contrasting manner.

[0089] If the area is not scrolled (S1304: N), the controller 400 determines whether or not to return the display of area B801 to the normal test result display screen (S1305). For example, the controller 400 determines whether or not to return the test result display screen of FIG. 8 from the test result display screen of FIG. 9 or 10. Whether or not to return the test result display screen to the normal screen is determined, for example, based on whether or not the user has changed the display ratio of the text box B812 on the test result display screen of FIG. 9 or 10 to 100%. Alternatively, a "back button" may be provided on the test result display screen of FIG. 9 or 10, and whether or not to return the test result display screen to the normal screen may be determined based on whether or not this "back button" has been pressed.

[0090] If the normal examination result display screen is to be returned to (S1305: Y), the controller 400 repeats the processes from S1301 onwards. If the normal examination result display screen is not to be returned to (S1305: N), the controller 400 determines whether or not to end the examination (S1306). The end of the examination is determined by whether or not the user has pressed the button B806, which is the examination end button, on the examination result display screen of FIG. 9 or FIG. 10. After checking details such as the location of the abnormal image, the user presses the button B806 to end the work.

[0091] If the inspection is to be ended (S1306: Y), the controller 400 ends the process. If the inspection is not to be ended (S1306: N), the controller 400 repeats the processes from S1305 onwards.

[0092] In the above example, the partial image and the enlarged image of the abnormal image are displayed on the same inspection result display screen. However, the present invention is not limited to this, and each image may be displayed on a different screen. Also, although the enlarged image is used as the related image corresponding to the abnormal image, the present invention is not limited to this.

[0093] As described above, the enlarged image of the abnormal image that is not displayed in the partial image of the test result image is displayed in a different display state from the normal display state. Therefore, the relationship between the partial image of the test result image displayed on the display and the abnormal image can be easily determined. The position of the abnormal image within the test result image can also be easily determined.

[0094] The inspection device 500 may be provided as a standalone unit independent of the image forming system 1. In this case, the inspection control unit 510 of the inspection device 500 is communicably connected to the controller 400. The inspection device 500 also has an operation unit including a display for displaying an inspection result display screen and an input interface for receiving input from a user. In the process of FIG. 15, the inspection control unit 510 (CPU 5001) executes the processes of S916 and S917 following the process of S913. The inspection control unit 510 (CPU 5001) executes the process of FIG. 16 to control the display of the inspection result display screen. In this case, the printed material discharged from the printer 300 is manually supplied to the inspection device 500 by the user.

[0095] The inspection device 500 may also have an in-line configuration provided inside the printer 300. In this case, the first reading unit 5051a, the second reading unit 5051b, and the flow reading glasses 5053a and 5053b are provided after the fixing unit 308, and read the paper on which the image has been fixed by the fixing unit 308. The function of the inspection control unit 510 is provided in the controller 400.

[0096] Although the image forming system 1 of this embodiment is configured to display the inspection result display screen on the display of the operation unit 200, the inspection result display screen may be displayed on the display of another device. For example, the inspection result display screen may be displayed on the display of an external device such as a personal computer that is communicably connected via the communication I / F 4305.

[0097] In the above description, the display ratio displayed in the text box B812 is expressed as the ratio (scale ratio) of the image displayed in the area B801 when the entire inspection result image is taken as 100%. Alternatively, the display ratio displayed in the text box B812 may be expressed as the magnification ratio of the inspection result image. A partial image of the inspection result image magnified according to the magnification ratio is displayed in the area B801.

[0098] 16, in the process of S1301, the controller 400 checks whether the display ratio of the text box B812 is set to a value greater than 100% (for example, 135%). This causes the controller 400 to determine whether to enlarge and display a partial image of a part of the inspection result image. If the partial image is to be displayed (S1301: Y), the controller 400 displays the partial image of the inspection result image enlarged according to the display ratio (S1302). As a result, the partial image of the inspection result image is enlarged and displayed in the area B801.

[0099] (Variation) The partial images of the test result image displayed in area B801 may display multiple abnormal images, or may not display any abnormal images at all. Fig. 17 is an example of the test result display screen when multiple abnormal images are displayed in the partial images. Fig. 18 is an example of the test result display screen when no abnormal images are displayed in the partial images.

[0100] In FIG. 17, area B804a has been added to the inspection result image of FIG. 8 as an abnormality location display area. Area B804a indicates the position of the third abnormal image within the overall image that was determined to be abnormal by inspection. The third abnormal image is an abnormal image in the area set as the "standard inspection area" or "focused inspection area" on the inspection setting screen of FIG. 5. Image B804b is an enlarged image of area B804a.

[0101] When multiple abnormal images are displayed in a partial image in this way, an enlarged image of each abnormal image is displayed. The first abnormal image in area B802a and the third abnormal image in area B804a, which are displayed in the partial image displayed in area B801a, are displayed in the same normal display state as enlarged images B802b and B804b. The second abnormal image in area B803a, which is not displayed in the partial image displayed in area B801a, is displayed in black, with enlarged image B803b not displayed in the normal display state.

[0102] In Fig. 18, the display ratio of text box B812 is reduced, and the range of the enlarged partial image is narrower than in Fig. 10. In this case, area B803a is no longer included in area B801b, and no abnormal image is displayed in the partial image. Because no abnormal image is displayed in the partial image, enlarged images B802b and B803b are not displayed in the normal display state, but are displayed in black.

Claims

1. a reading means for reading a sheet on which an image is formed; an inspection means for inspecting the read image read by the reading means; a display means for displaying a display screen including a first display area capable of displaying the entire scanned image and a second display area for enlarging and displaying a portion of the scanned image; a control means for controlling the display means, The control means When a first abnormal image is found in the read image inspected by the inspection means, the read image is displayed in the first display area, and the first abnormal image is enlarged and displayed in the second display area; When the first abnormal image is displayed in the first display area, the second display area is set to a first display state, and when the first abnormal image is not displayed in the first display area, the second display area is set to a second display state different from the first display state. Inspection equipment.

2. In the second display state, the first abnormal image is displayed darker than in the first display state. The inspection device according to claim 1.

3. The first display state and the second display state are characterized in that the color of the frame around the first abnormal image is different from each other. The inspection device according to claim 1.

4. In the second display state, a mark is added to the first abnormal image. The inspection device according to claim 1.

5. In the second display state, the first abnormal image is displayed with a lower density than in the first display state. The inspection device according to claim 1.

6. The image reading device further comprises an operation means for enlarging and moving the scanned image displayed in the first display area. The inspection device according to claim 1.

7. The first abnormal image is displayed in the first display state but is not displayed in the second display state. The inspection device according to claim 1.

8. The second display state displays a message indicating that the first abnormal image is not displayed in the first display area. The inspection device according to claim 1.

9. The message is displayed in a speech bubble. The inspection device according to claim 8.

10. The message is displayed in a frame connected by a drop line. The inspection device according to claim 8.

11. the control means, when the first abnormal image in the second display area is selected while the first abnormal image is not displayed in the first display area, switches the display area so that the first abnormal image is displayed in the first display area. The inspection device according to claim 1.

12. the control means, when the first abnormal image in the second display area is selected while the entire scanned image is being displayed in the first display area, switches the display area so that the first abnormal image is enlarged and displayed in the first display area. The inspection device according to claim 1.

13. When there are a plurality of first abnormal images in the read image and the plurality of first abnormal images are displayed in the second display area, the first abnormal images displayed in the read image in the first display area are displayed in the first display state, and the first abnormal images not displayed in the read image in the first display area are displayed in the second display state. The inspection device according to claim 1.

14. an image forming means for forming an image on a sheet; an inspection device; The inspection device includes: a reading means for reading a sheet on which an image is formed; an inspection means for inspecting the read image read by the reading means; a display means for displaying a display screen including a first display area capable of displaying the entire scanned image and a second display area for enlarging and displaying a portion of the scanned image; a control means for controlling the display means, The control means When a first abnormal image is found in the read image inspected by the inspection means, the read image is displayed in the first display area, and the first abnormal image is enlarged and displayed in the second display area; When the first abnormal image is displayed in the first display area, the second display area is set to a first display state, and when the first abnormal image is not displayed in the first display area, the second display area is set to a second display state different from the first display state. Image forming device.

15. a display means for displaying a display screen including a first display area capable of displaying the entire scanned image and a second display area for enlarging and displaying a part of the scanned image; a display control means for controlling the display means, When a first abnormal image is present in the read image, the display means displays the read image in the first display area and enlarges and displays the first abnormal image in the second display area; When the first abnormal image is displayed in the first display area, the second display area is in a first display state, and when the first abnormal image is not displayed in the first display area, the second display area is in a second display state different from the first display state. Display device.

16. When the read image includes a plurality of first abnormal images and the plurality of first abnormal images are displayed in the second display area, the first abnormal image displayed in the read image in the first display area is displayed in the first display state, and the first abnormal image not displayed in the read image in the first display area is displayed in the second display state. The display device according to claim 15.

Images