JP5994698B2 - Image inspection system, image inspection apparatus, program, and image data output method - Google Patents

Description

  The present invention relates to an image inspection system, an image inspection apparatus, a program, and an image data output method.

In Patent Document 1, an image input unit for inputting an image on a printed material, an inspection unit for inspecting whether the printed material is good or defective based on the image input by the image input unit, and an inspection result of the inspection unit is defective. In some cases, a print inspection apparatus including a display unit that displays an image input by an image input unit is disclosed.
Further, in Patent Document 2, a printed matter in which a defect is detected by the inspection unit is marked, and when this mark is detected by a sensor installed between the inspection unit and the rejector, the printed matter in which the defect is inspected by the rejector. A defective rejection method is disclosed which discharges the wastewater.
Further, Patent Document 3 discloses a process in which a two-dimensional code including assigned examination group identification information is output and a worker in charge attaches the output two-dimensional code to a corresponding examination group.

Japanese Patent Laid-Open No. 08-145910 JP 09-94939 A JP 2009-133741 A

  An object of the present invention is to improve convenience when a person confirms an image inspected by an inspection apparatus.

According to the first aspect of the present invention, an image forming unit that forms an image on a recording material based on original image data that is an image source, and a formed image that is formed on the recording material by the image forming unit are determined in advance. determining means for determining whether to satisfy the obtained condition, reading the image formed on a recording material, an image reading means for generating a read image data, the previous SL does not satisfy the predetermined condition wherein A storage unit that stores the image data read by the image reading unit of the formed image determined by the determination unit and identification information in association with each other, and the determination unit determines that the predetermined condition is not satisfied. Identification that is an image including the identification information associated with the read image data of the formed image with respect to the recording material on which the formed image is formed An identification image forming means for forming an image, the corresponding to the identification information obtained from the identification image an the read image data stored formed on the recording material with the image formed by the storage means An image inspection system that includes an image display unit that displays an image based on read image data and displays an image based on original image data that is a source of the formed image.
According to a second aspect of the present invention, the image display means displays the formed image by displaying the image based on the read image data, and at the time of displaying the formed image, When each of the portions that do not satisfy the predetermined condition is displayed in order, and when the portions that do not satisfy the predetermined condition are displayed in order, the portion that does not satisfy the predetermined condition most The image inspection system according to claim 1, wherein the display is performed in order.
The invention according to claim 3 further includes a stacking unit that stacks the recording material determined by the determination unit, and the stacking unit receives the formed image determined to satisfy the predetermined condition. 2. The image inspection system according to claim 1, wherein the formed recording material and the recording material on which the formed image determined not to satisfy the predetermined condition are shifted and stacked. It is.
According to a fourth aspect of the present invention, when the user desires to form an image again based on the original image data that is the basis of the formed image determined by the determining means that the predetermined condition is not satisfied. The image forming apparatus further includes a receiving unit configured to receive an instruction for the second image formation from the user, wherein the determining unit is a portion of the formed image formed on the recording material that does not satisfy the predetermined condition. When there are a plurality of parts in one page that do not satisfy the predetermined condition, the image display means sequentially displays the parts that do not satisfy the predetermined condition, and When an instruction for re-forming the image is received by the receiving unit, the portion of the portion that does not satisfy the predetermined condition has not yet been displayed. A vision inspection system of claim 1, wherein omitting the display of the minute.
According to a fifth aspect of the present invention, there is provided a judging means for judging whether or not a formed image formed on a recording material based on original image data as an image source satisfies a predetermined condition; reading the image formed above, a read image and an image reading means for data to generate the said image reading means by the read image data before Symbol has been said forming images determined not to satisfy the predetermined condition by the determination unit And a storage means for storing the identification information in association with each other, and a recording image on which the formation image determined by the determination means that the predetermined condition is not satisfied is formed on the recording material the identification image forming means for forming an identification image that is an image including the identification information associated with the read image data, is stored in said storage means Output the read image data corresponding to the identification information obtained from the identification image formed on the recording material together with the formed image, and the original image data from which the formed image is based And an output means.
The invention according to claim 6 is characterized in that the identification image forming means forms the identification image in a portion of the recording material that is cut off by a cutting process performed later. An image inspection apparatus.
According to a seventh aspect of the present invention, there is provided a determination function for determining whether or not a formed image formed on a recording material based on original image data from which an image is based satisfies a predetermined condition; a function to generate read image data by the forming image to read the image reading means for reading the image formed above, the image reading unit before Symbol has been said forming images determined not to satisfy the predetermined condition And a function of storing the read image data in the storage unit in a state in which the read image data is associated with the identification information, and an identification image for the recording material on which the formed image is determined not to satisfy the predetermined condition For forming an identification image, which is an image including the identification information associated with the read image data of the formed image. When, the read image data corresponding to the identification information obtained from the read image data in a to the identification image formed on a recording material with the forming image stored in said storage unit, and, the formation This is a program for causing a computer to realize the function of causing the output means to output original image data that is the source of an image.
The invention according to claim 8 determines whether or not a formed image formed on a recording material based on original image data as an image source satisfies a predetermined condition, and It reads the formed image, generates read image data, by the read image data obtained by reading the formed image was judged that the SL does not satisfy the predetermined condition, in association with identification information storage And the identification information associated with the read image data of the formed image with respect to the recording material on which the formed image is determined to be stored that is not satisfied with the predetermined condition. forming an identification image that is an image, stored in the storage unit a read image data corresponding to the identification information obtained from the identification image formed on a recording material with the formed image The read image data is, and is image data output method for outputting original image data which is the original of the form image.

According to invention of Claim 1, the convenience at the time of a person confirming the image test | inspected by the test | inspection apparatus can be improved.
According to the invention of claim 2, the display is performed in order from the portion having the condition closest to the predetermined condition among the portions determined not to satisfy the predetermined condition. Compared to the case, the user can determine earlier whether or not the image formed on the recording material satisfies a predetermined condition.
According to the third aspect of the present invention, it is possible to easily find a recording material on which an image determined to not satisfy a predetermined condition is found from a stacking unit on which a plurality of recording materials are stacked.
According to the fourth aspect of the present invention, the predetermined condition is satisfied even though the image formation is performed again based on the original image data that is the source of the image determined not to satisfy the predetermined condition. It is prevented that an image determined not to satisfy is still displayed.
According to the invention of claim 5, it is possible to improve convenience when a person confirms an image inspected by the inspection apparatus.
According to the invention of claim 6, it is possible to suppress the identification image from remaining on the recording material.
According to the seventh aspect of the present invention, it is possible to improve convenience when a person confirms an image inspected by the inspection apparatus.
According to invention of Claim 8, the convenience at the time of a person confirming the image test | inspected by the test | inspection apparatus can be improved.

1 is a diagram illustrating an overall configuration of an image forming system according to an embodiment. It is a figure at the time of seeing a delivery roller from the arrow II direction of FIG. 5 is a flowchart showing a flow of processing executed in the image forming system of the present embodiment. It is the figure which showed the code image formed on the paper. It is the figure which showed an example of the display screen in a monitor. It is the flowchart which showed the flow of a series of processes performed when the said display process in a monitor is made. FIG. 10 is a diagram illustrating a state of a sheet after inspection by the inspection apparatus is completed.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a diagram showing an overall configuration of an image forming system according to the present embodiment.
The image forming system 1 of the present embodiment includes an image forming apparatus 100 that forms an image on a sheet P that is an example of a recording material, an inspection apparatus 200 that inspects an image formed on the sheet P by the image forming apparatus 100, A paper storage device 300 that stores the paper P discharged from the inspection device 200 is provided. Further, the image forming system 1 is provided with a code image reading device 400 that reads a code image (details will be described later) formed on the paper P by the inspection device 200. Note that the image forming system 1 of the present embodiment also has a function of inspecting an image formed on the paper P, and thus can be regarded as an image inspection system.

  The image forming apparatus 100 that functions as an image forming unit acquires image data (hereinafter referred to as “original image data”) that is a source of an image to be formed from a PC (Personal Computer) (not shown) or the like. Based on the original image data, an image is formed on the paper P using an image forming material such as toner. In the present embodiment, the mechanism for forming an image on the paper P is not particularly limited, and various existing methods such as a so-called electrophotographic method and an inkjet method are used.

  The inspection device 200 is provided with a terminal device 210. The terminal device 210 includes a touch panel type monitor 211 and receives an operation from a user (operator) and displays information to the user. Further, the inspection apparatus 200 is provided with a sheet conveyance path R through which the sheet P discharged from the image forming apparatus 100 is conveyed. Further, an edge detection sensor 212 that detects the edge of the leading end of the paper P and a first feed roller 213 that sends the paper P that has passed through the edge detection sensor 212 further downstream are provided on the side of the paper transport path R. ing.

  Further, the inspection apparatus 200 is provided with a second feed roller 214 that is provided downstream of the first feed roller 213 in the transport direction of the paper P and feeds the paper P further downstream. Further, an image reading device 220 that reads an image formed on the paper P is provided on the downstream side of the first feed roller 213 and the upstream side of the second feed roller 214.

  In addition, a code image forming head 215 that forms a code image on the paper P on the paper transport path R is provided on the downstream side of the second feed roller 214. Further, the inspection apparatus 200 is provided with a control unit 240 that controls a code image forming process by the code image forming head 215. The code image forming head 215 is configured by, for example, an inkjet head.

  An image reading device 220 as an example of an image reading unit is disposed on one side of the sheet conveyance path R (arranged above the sheet conveyance path R in the drawing) and is formed on the surface of the sheet P. Image reading device 221 that reads the image on the other side of the sheet conveyance path R (located below the sheet conveyance path R in the figure) and reads the image formed on the back surface of the sheet P 222 is provided.

  Here, each of the image reading devices of the front surface image reading device 221 and the back surface image reading device 222 receives a light source 225 that irradiates light on the paper P and reflected light from the paper P by a plurality of light receiving elements. A line sensor 226 that generates data (hereinafter referred to as “read image data”) and a reflecting mirror 227 that guides reflected light from the paper P to the line sensor 226 are provided. Further, each image reading apparatus is provided with an imaging optical system 228 that forms an image on the line sensor 226 from the reflected light from the paper P guided by the reflecting mirror 227.

  Next, the control unit 240 will be described. The control unit 240 is provided with a first buffer memory 241 that stores read image data output from the front surface image reading device 221 and the back surface image reading device 222. In addition, a second buffer memory 242 is provided for storing original image data transmitted from the image forming apparatus 100 or a PC (not shown).

  Further, the control unit 240 includes an output control unit 243 that controls output of image data (original image data and read image data) from the first buffer memory 241 and the second buffer memory 242 to the collation processing unit 244. . In this embodiment, the collation processing unit 244 collates the read image data with the original image data. In order to make this collation easier, when original image data is stored in the second buffer memory 242, it is preferable to perform processing such as gray scale conversion and resolution conversion on the original image data.

  Here, the output control unit 243 outputs the read image data stored in the first buffer memory 241 from the first buffer memory 241 and the second output of the original image data stored in the second buffer memory 242. The output of the image data from the first buffer memory 241 and the second buffer memory 242 is controlled so that the output timing from the buffer memory 242 is the same.

  More specifically, the output control unit 243 sequentially outputs original image data and read image data for one page (one sheet) from the first buffer memory 241 and the second buffer memory 242. In this case (when outputting image data of each page is started), for example, output is started from image data corresponding to the image formed at the top of each page, and finally, formed at the rear end of each page. Image data corresponding to the image to be output.

  Further, in the present embodiment, the output start timing of the read image data from the first buffer memory 241 and the output start timing of the original image data from the second buffer memory 242 are made coincident and formed at the rear end of each page. When outputting the image data corresponding to the image to be read, the output timing of the read image data is matched with the output timing of the original image data. Thereby, in this embodiment, when the original image data and the read image data are compared in the collation processing unit 244, the position on the paper P of the image specified by the original image data and the read image data are specified. The position of the image on the paper P matches.

  More specifically, in this embodiment, the output from the edge detection sensor 212 is output to the output control unit 243, and the output control unit 243 grasps the arrival of the leading end of the paper P to the edge detection sensor 212. In addition, a clock signal synchronized with image reading is transmitted to the first buffer memory 241 together with the read image data from the front surface image reading device 221 and the back surface image reading device 222. Further, a page synchronization signal is sent to the second buffer memory 242 together with the original image data. The output control unit 243 determines the timing for outputting the original image data and the read image data based on the output from the edge detection sensor 212, a clock signal, a page synchronization signal, and the like.

  The control unit 240 will be further described. The control unit 240 is provided with a collation processing unit 244 that collates the read image data output from the first buffer memory 241 and the original image data output from the second buffer memory 242. ing. Further, a result holding unit 245 that holds the result of the collation by the collation processing unit 244 is provided. Further, a code image formation control unit 246 that controls the code image forming head 215 based on the result of the collation by the collation processing unit 244 is provided.

  The collation processing unit 244 divides each of the read image data sent from the first buffer memory 241 and the original image data sent from the second buffer memory 242 into predetermined areas, Each time, pattern matching processing is performed to determine whether or not a defect has occurred in the formed image. In other words, the collation processing unit 244 functioning as a determination unit is formed on the paper P based on the read image data sent from the first buffer memory 241 and the original image data sent from the second buffer memory 242. It is determined whether the image is formed under a predetermined condition.

  As a typical method of pattern matching processing, for example, a predetermined parameter such as a density value is compared for each of a plurality of pixels included in each of the two regions to be compared, and the two Find the difference between two parameters. Then, an absolute value sum of a plurality of differences obtained by comparing each pixel is obtained, and it is determined whether or not this absolute value sum exceeds a predetermined threshold value. Then, when the absolute value sum exceeds a predetermined threshold, it is determined that a defect has occurred in (a part of) the image.

  The control unit 240 temporarily stores, for example, a CPU (Central Processing Unit) that executes arithmetic processing, a nonvolatile ROM (Read Only Memory) or HDD (Hard Disk Drive) in which a control program is stored, and data. RAM (Random Access Memory) or the like. Here, the control unit 240 functions as an output control unit 243, a collation processing unit 244, and a code image formation control unit 246 by executing a control program stored in the ROM, for example. The first buffer memory 241, the second buffer memory 242, and the result holding unit 245 are realized by a RAM or an HDD.

Next, the sheet storage device 300 will be described.
A housing 310 is provided in the paper storage device 300 of this embodiment that functions as paper stacking means. In addition, a paper stacking unit 320 is provided on which the paper P stored in the housing 310 and sequentially discharged from the inspection apparatus 200 is stacked. Further, a feeding roller 330 is provided for feeding the paper P discharged from the inspection apparatus 200 to the paper stacking unit 320.

  In the present embodiment, as shown in FIG. 2 (a view when the delivery roller 330 is viewed from the direction of arrow II in FIG. 1), the delivery roller 330 includes a drive roller 331 that is rotationally driven by a motor (not shown). The driven roller 331 is pressed against the drive roller 331 and is driven by the drive roller 331 to rotate. In the present embodiment, the delivery roller 330 is provided so as to be movable along the axial direction of the delivery roller 330.

  Further, in the present embodiment, a moving mechanism 340 that includes a motor, a cam (not shown), and the like and moves the feed roller 330 along the axial direction of the feed roller 330 is provided. Here, in this embodiment, the stacking position of the paper P is shifted by moving the feed roller 330 in the axial direction by the moving mechanism 340 (so that the stacking position of the paper P can be varied). It has become). In other words, the stacking position of the sheets P is offset. More specifically, while the paper P is being conveyed by the delivery roller 330, the delivery position of the paper P is offset by moving the delivery roller 330 in the axial direction.

FIG. 3 is a flowchart showing a flow of processing executed in the image forming system 1 of the present embodiment.
In the present embodiment, when a start button (not shown) is pressed by the user, an image forming process based on the print job is started (step 101). Specifically, first, the original image data provided by the user is input to the image forming apparatus 100 (step 102), whereby the image forming process is executed in the image forming apparatus 100 (step 103). Note that the original image data provided by the user is also stored in the second buffer memory 242 of the inspection apparatus 200 (see FIG. 1), and is also used for collation processing described later.

  Thereafter, the paper P sequentially discharged from the image forming apparatus 100 along with the image forming process is sent to the inspection apparatus 200, and the image on the paper P is read by the inspection apparatus 200 (step 104). The read image data obtained by this reading is stored in the first buffer memory 241 shown in FIG. Thereafter, in the present embodiment, the verification processing unit 244 of the inspection apparatus 200 executes the verification process (step 105). Specifically, the pattern matching process is performed using read image data stored in the first buffer memory 241 and original image data stored in the second buffer memory 242.

  Next, the matching processing unit 244 determines whether or not a defect has occurred in the image formed on the paper P based on the pattern matching processing (step 106). If the collation processing unit 244 determines that no defect has occurred, the main control unit (not shown) determines whether all print jobs have been completed (step 110), and all print jobs have been completed. If it is determined that the process is being performed, the entire process is terminated. On the other hand, if it is determined that the print job has not ended, the processing from step 102 is executed again.

  On the other hand, if it is determined in step 106 that a defect has occurred, the collation processing unit 244 determines the page information (page number) of the page where the defect has occurred, the position where the defect has occurred (position in the page), Correspondence between defect status data constituted by the degree of defect, the number of defects, original image data, read image data, etc., and identification information (ID) for distinguishing this defect status data from other defect status data In addition, the defect status data and the identification information are output to the result holding unit 245 that functions as a storage unit.

  As a result, the defect status data and the identification information associated with each other are held by the result holding unit 245 (step 107). Thereafter, the code image formation control unit 246 (see FIG. 1) generates a code image based on the identification information, and uses the code image formation head 215 for the paper P determined to be defective. The generated code image is formed (step 108). In other words, in this embodiment, the code image formation control unit 246 that functions as an identification image forming unit determines that the identification image that can be distinguished from other paper P is defective. Formed against.

  The paper P on which the code image is formed is stacked on the paper stacking unit 320 (see FIG. 1). At this time, the feeding roller 330 is moved by the moving mechanism 340 (see FIG. 2). The paper P on which the code image is formed is stacked on the paper stacking unit 320 in an offset state (step 109). Thereafter, in step 110, it is determined whether or not all print jobs have been completed. If it is determined that all print jobs have been completed, the entire process is terminated. On the other hand, if it is determined that the print job has not ended, the processing from step 102 is executed again.

FIG. 4 is a diagram showing a code image formed on the paper P.
The image forming apparatus 100 according to the present embodiment forms an image in a rectangular area indicated by “print data area” in the drawing. Further, as shown in the figure, the image forming apparatus 100 forms a cross mark MK1 at each of the four corners of the sheet formed in a rectangular shape and outside the “print data area”. (Print).

  Further, in the present embodiment, a T-shaped mark MK2 is formed between the cross marks MK1 adjacent to each other. Here, in the present embodiment, a region located outside the marks MK1 and MK2 is cut off during bookbinding or the like. In this embodiment, the code image is formed on the portion to be cut off. Thereby, in this embodiment, it is prevented that bookbinding or the like is performed in a state where the code image remains on the paper P. The code image is not particularly limited. For example, a one-dimensional barcode or a two-dimensional barcode such as a QR code (registered trademark) can be used.

  Here, in the present embodiment, a code image is formed on the rear end side of the paper P in the transport direction when the paper P is transported (the paper transport direction in the inspection apparatus 200, the transport direction indicated by the arrow 4A in FIG. 4). Is formed. Here, since the inspection apparatus 200 (see FIG. 1) can be further reduced in size, the code image forming head 215 is arranged on the upstream side in the transport direction of the paper P, and the code image forming head 215 with respect to the image reading apparatus 220. It is preferable to approach. On the other hand, if the code image forming head 215 is brought too close to the image reading device 220, the paper P is positioned downstream of the code image forming head 215 when the code image forming head 215 forms the code image, and the code image is formed. There may be a problem that it becomes impossible to form.

  For this reason, in this embodiment, the code image forming head 215 is arranged on the most upstream side of the portion where the code image forming head 215 can form the code image on the paper P, and the code image forming is performed. Thus, the inspection apparatus 200 is downsized while suppressing the occurrence of the above-described problem of being unable to be performed. In this case, as described above, a code image is formed on the rear end side of the paper P in the transport direction of the paper P.

  After the formation of the image on the paper P is completed, the quality of the image that is determined to be defective may be confirmed by the user. In such a case, in this embodiment, first, in the paper stacking unit 320 (see FIG. 1), a paper on which an image determined by the user to be defective from the stacked paper P is formed. P (paper P on which an image that has been determined to be defective by the inspection apparatus 200 is formed) (hereinafter, sometimes referred to as “defective paper P”) is found. Here, in the present embodiment, for the defective paper P, the code image is formed on the side of the defective paper P, and the user finds the defective paper P based on the presence or absence of the code image.

  Thereafter, in this embodiment, the code image reading device 400 shown in FIG. 1 is operated by the user, and the code image on the defective paper P is read. The code image reading device 400 is a portable device, and the code image is read in a state where the defective paper P is stacked on the paper stacking unit 320. More specifically, the defective paper P may not be removed and may remain in the paper stacking unit 320 depending on the degree of the defect. In the present embodiment, the user is in a state of being still stacked on the paper stacking unit 320. The code image is read from the paper P.

  When the code image on the defective paper P is read, information about the defect is displayed on the monitor 211 (see FIG. 1). Although not described above, an example of the code image reading device 400 is a barcode reader. Note that the code image reading device 400 may be a mobile phone with a camera, a smartphone, or the like without being limited to a dedicated device such as a barcode reader.

FIG. 5 is a diagram showing an example of a display screen on the monitor 211.
In the present embodiment, the identification information (ID) obtained by reading the code image is displayed on the upper left in the figure of the display screen on the monitor 211. The page number of the page currently displayed on the display screen is displayed on the upper right of the display screen. Further, two triangles are displayed on the right side of the place where the page number is displayed, and a page switching operation unit 411 that is operated (pressed) by the user when the page is switched to another page is displayed.

  In the present embodiment, the entire image 419 of the currently displayed page is displayed on the middle and right side of the display screen. In this overall image 419, four round marks MK3 are displayed. In the present embodiment, it is indicated that a defect has occurred at a location where the four round marks MK3 are displayed. . In addition, in the present embodiment, information (image) indicating a location where a defect has occurred is displayed in the overall image 419 displayed on the display screen. In the present embodiment, an enlarged display unit 412 that enlarges and displays a location where a defect has occurred is provided in the middle and center of the display screen.

  In other words, an enlarged display unit 412 for enlarging and displaying an image based on the read image data at a location where a defect has occurred is provided in the middle and center of the display screen. In the present embodiment, among the four marks MK3, the mark MK3 (the mark MK3 positioned at the top in the drawing) surrounding the defect (defective image) displayed on the enlarged display unit 412 is: It is displayed as a thick line and highlighted. This makes it easier for the user to recognize which of the defects displayed in the overall image 419 is enlarged and displayed on the enlarged display unit 412.

  Furthermore, in the present embodiment, an original image display unit 413 that displays an image based on the original image data is provided on the middle and left side of the display screen (on the left side of the enlarged display unit 412). In other words, an original image display unit 413 that enlarges and displays an image based on the original image data corresponding to the location where the defect has occurred in the original image data is provided in the middle and left side of the display screen. Here, in the present embodiment, the enlarged display unit 412 and the original image display unit 413 are displayed in a state of being adjacent to each other as described above, and the image displayed on the enlarged display unit 412 and the original image display unit 413 are displayed. It is easier to compare with the displayed image.

  In the present embodiment, a “reprint button” that is operated (pressed) by the user when the user desires reprinting is displayed on the lower and right side of the display screen. Here, as a result of the user confirming the display screen, when the user determines that a defect exceeding the limit has occurred, the reprint button is pressed by the user.

  When the reprint button is pressed, image formation is performed by the image forming apparatus 100 (FIG. 1), and a new sheet P on which an image is formed is stacked on the top of the sheet stacking unit 320. When this reprinting is performed in a situation where a plurality of sheets of paper P on which the same image is formed is created, it is only necessary to remove the defective paper P from the paper stacking section 320. On the other hand, when the images formed on each of the papers P are different as in the case where a booklet is created, the paper P in which a defect has occurred (the defective paper P still stacked on the paper stacking unit 320). ) Needs to be replaced with the reprinted paper P.

  In any case, when reprinting is performed, it is necessary to identify the defective paper P from the plurality of papers P stacked on the paper stacking unit 320 and remove the defective paper P. Further, even when reprinting is not performed, there is a need to specify the defective paper P from among the plurality of papers P stacked on the paper stacking unit 320. For example, depending on the user, in addition to confirming the defect on the monitor 211, there may be a case where it is desired to confirm the defect visually, or the confirmation of the defect on the monitor 211 may be omitted and the defective paper P may be directly confirmed visually. . More specifically, in this embodiment, the read image data and the original image data are displayed on the monitor 211, and the user confirms the degree of failure by checking the monitor 211. It may be difficult to confirm the degree of failure. In such a case, the user needs to specify the defective paper P from among the plurality of papers P stacked on the paper stacking unit 320.

  Here, in the present embodiment, the above-described specification of the defective paper P is performed by relying on the code image. In such a case, if the code image is simply a symbol, it is difficult to distinguish it from other code images, and it becomes difficult to identify the defective paper P. In addition, a plurality of defective sheets P may be stacked on the sheet stacking unit 320. In this case, if the code image is simply a symbol, the defective sheet P to be specified and other than the defective sheet P are specified. It becomes difficult to identify the defective paper P. For this reason, it is desirable that the code image includes numbers, characters, symbols, and the like so that the code image can be easily identified.

  Further, for example, the monitor 211 may be used to facilitate the identification of the paper P in which a defect has occurred. Specifically, for example, a “page search” button is displayed on the monitor 211, for example. When the “page search” button is pressed by the user, the code 211 formed on the defective paper P is sequentially read by the user using the monitor 211 (reading by the code image reading device 400). Instruct to do.

  Specifically, for example, the user is instructed to go to the paper stacking unit 320 and the user is instructed to read a code image from each of the defective papers P existing in the paper stacking unit 320. When the identification information read by the code image reading device 400 matches the identification information of the paper P that is to be specified, the user is notified through the monitor 211 that the information matches. This makes it easier for the user to identify the paper P on which a defect has occurred.

  The display on the monitor 211 will be further described with reference to FIG. 5. In the present embodiment, the defective portion displayed on the enlarged display portion 412 is displayed on the right side of the portion where the identification information is displayed in the drawing. A switching operation unit 414 operated by the user when switching to a location is provided.

  Here, when the switching operation unit 414 is operated by the user, of the remaining three marks MK3, a part surrounded by the mark MK3 surrounding the defect having the second highest degree of defect (defective part) Is displayed on the enlarged display portion 412. When the switching operation unit 414 is further operated by the user, a portion (defective portion) surrounded by the mark MK3 surrounding the defect having the third highest degree of defect is displayed on the enlarged display unit 412. The

  Further, when the switching operation unit 414 is further operated by the user, a portion (failure location) surrounded by the mark MK3 surrounding the failure having the fourth largest failure (the failure having the smallest failure). Is displayed on the enlarged display portion 412. In other words, in the present embodiment, the portion with the highest degree of failure is first displayed on the enlarged display unit 412, and thereafter, each time the switching operation unit 414 is operated, a failure with a lower level of failure is displayed. Become so. In this embodiment, when the switching operation unit 414 is operated by the user and the display on the enlarged display unit 412 is switched, the display on the original image display unit 413 is switched accordingly.

  Here, in the case where the display is performed in order from the largest to the smallest, as in the present embodiment, the user's effort required to confirm the defect is reduced. More specifically, for example, when the user performs reprinting based on the initially displayed defect, the user does not have to confirm the remaining defect. Here, when the display order is reversed and the display is performed in order from the smallest to the largest, the reprinting is often performed based on the defect displayed at the end. In such a case, the number of times that the user operates the switching operation unit 414 increases, and the user's effort and time required to check for defects increase.

FIG. 6 is a flowchart showing a flow of a series of processes executed when the display process on the monitor 211 is performed.
In the present embodiment, first, as described above, a code image is read by the code image reading device 400, and identification information (ID) is acquired (step 201). In the present embodiment, the case where the identification information is acquired by reading the code image by the code image reading device 400 has been described as an example. However, for example, a numeric keypad provided on the terminal device 210 (see FIG. 1) The identification information may be acquired by the user operating (shown).

  Next, in the present embodiment, the terminal device 210 (see FIG. 1) accesses the result holding unit 245, and the terminal device 210 reads the defect status data stored in association with the identification information (step 202). As a result, the page information (page number) of the page where the defect has occurred, the position where the defect has occurred (position within the page), the degree of the defect, the number of defects, the original image data of the page where the defect has occurred, and the defect The read image data of the page where the occurrence has occurred is output to the terminal device 210. Here, the result holding unit 245 can be regarded as an output unit that outputs defect status data to the terminal device 210 as an example of a display unit.

  Next, the terminal device 210 displays defect information, which is information about the defect, on the monitor 211 as in the display screen shown in FIG. 5 (step 203). Next, the terminal device 210 sets the counter value n = 0 (step 204). The counter value n is a number assigned to each defect by the matching processing unit 244 (see FIG. 1) to identify each defect. In the present embodiment, the counter value n is set so that the counter value n decreases as the degree of failure increases, and as described above, in this embodiment, the degree of failure is reduced. The defective parts are displayed on the monitor 211 in order from the large defect to the small defect.

  Next, as shown in FIG. 5, the image based on the read image data corresponding to the nth defect and the original image data corresponding to the nth defect are displayed on the monitor 211 of the terminal device 210 functioning as an image display unit. A base image is displayed (step 205). Further, the entire image 419 (see FIG. 5) based on the read image data is displayed on the monitor 211, and the mark MK3 corresponding to the defect displayed on the enlarged display unit 412 is indicated by a thick line among the marks MK3. It is displayed (highlighted) (step 206).

  Next, when a user operation on the monitor 211 is received at the terminal device 210 functioning as an accepting unit (when a user operation on the monitor 211 is detected), the terminal device 210 performs an operation (instruction) by the user, It is determined whether it is in-page advance, reprint, or page advance (step 207). Then, for example, when it is in-page feed (when the switching operation unit 414 (see FIG. 5) is operated), it is determined whether or not there is still a defect in the same page (step 208). If it is determined that there is still a defect, the count number n is set to n + 1 (step 209), and the processing after step 205 is executed again.

  On the other hand, if it is determined in step 208 that there is no defect in the same page, it is determined whether there is another page in which a defect has occurred (the code image reading device 400 reads the code image). It is determined whether there is another page that has been performed) (step 211). If it is determined that there is another page, the process of step 201 is executed again. Even when it is determined in step 207 that the user's operation is page turning, the process in step 211 is executed to determine whether there is another page in which a defect has occurred.

  If it is determined in step 207 that the user operation is an instruction for reprinting, the image data (original image data) of the page to be reprinted is registered as a reprint job (step 210). Thereafter, the process of step 211 is executed, and it is determined whether there is another page in which a defect has occurred. Here, when the operation by the user is an instruction for reprinting, the processing of step 208, step 209, step 205, and step 206 is omitted.

  That is, even if there is another defect that has not been displayed on the monitor 211 in the same page, the display of this defect is omitted. In addition, in this embodiment, when there are a plurality of locations where defects occur in one page, as described above, the locations where defects occur are enlarged and displayed in order, but reprinting is performed. When the instruction is given by the user, the display of the portion that has not been displayed on the monitor 211 among the portions where the defect has occurred is omitted.

Next, the process of step 212 will be described.
If it is determined in step 211 that there is no other page in which a defect has occurred, the processing in step 212 is executed. In the process of step 212, the reprint process is performed based on the reprint job registered in step 210. At this time, in this embodiment, a predetermined inquiry screen is displayed on the monitor 211, and the user is requested to permit printing. Then, when the user gives permission, reprinting is started. In the process of this embodiment, when a defect occurs over a plurality of pages, a reprint job is registered for each page, and finally reprinting is performed. For example, reprinting may be performed each time a reprint job is registered (reprint instruction by the user).

  Here, in the inspection apparatus 200, it is difficult to perform a subjective inspection that a human performs. For this reason, even if an image is determined to have a defect in the inspection apparatus 200, a defect may not occur if a human determines. In such a situation, it is not appropriate to uniformly dispose of what is judged as defective by the inspection apparatus 200. Therefore, even if it is determined that the inspection apparatus 200 is defective, it is desirable to perform confirmation by the user. By the way, in general, it is difficult to find a sheet P determined by the inspection apparatus 200 as being defective from among a large number of stacked sheets P.

  Therefore, in the present embodiment, as described above, a code image is formed on the paper P in which a defect has occurred, and the paper P is stacked in an offset state. Yes. Thereby, in this embodiment, the paper P determined to be defective by the inspection apparatus 200 can be found more quickly by the user. In the present embodiment, the mode of offsetting the paper P has been described as an example, but the offset of the paper P is not essential. Even if there is no offset of the paper P, since the code image is formed on the paper P, the user can find out the paper P determined to be defective based on the code image.

  In the present embodiment, as described above, an image of a portion where a defect has occurred on the monitor 211 and an image corresponding to the portion where the defect has occurred, based on the original image data. An image is displayed. Thereby, the movement of the user's line of sight is minimized, for example, whether or not the portion where the defect has occurred is really defective as compared with the case where only the image based on the original image data is displayed on the monitor 211. Judgment by the user is made more promptly.

  In this embodiment, the user can determine whether or not the defective paper P is defective without taking out the defective paper P from the paper stacking unit 320. In such a case, when the user determines that the sheet is not defective, the user does not have to perform an operation such as returning the sheet P to the sheet bundle in the sheet stacking unit 320. When it is essential to take out the paper P from the paper stacking unit 320, even when the user determines that no defect has occurred, it is necessary to return the paper P into the paper stacking unit 320.

  In this embodiment, by offsetting the paper P, it is easy to find the paper P in which a defect has occurred. However, for example, with respect to the paper P such that a part of the paper P protrudes from the side edge of the paper P. By sticking a sticky note, it becomes easy to find the paper P on which a defect has occurred. When sticking a sticky note in this way, a code image may be formed on the side portion of the paper P as described above, or a code image may be formed on this sticky note.

  In the present embodiment, the code image reading device 400 is provided with a code image reading function. However, the code image reading device 400 is provided with a monitor for displaying the screen shown in FIG. You may do it. Then, the defect status data may be transmitted to the code image reading device 400, and the code image reading device 400 may display the screen shown in FIG. In this case, the user can check the degree of failure on the paper stacking unit 320 without going to the monitor 211.

  In the above description, the case where the code image is formed on the paper P has been described. In addition to this code image, FIG. 7 (a diagram showing the state of the paper P after the inspection by the inspection apparatus 200 is completed). As shown in the figure, an image indicating the location of occurrence of a defect may be formed on the side of the paper P. When the user visually confirms the defect, if the image indicating the defect occurrence position is formed, the user confirms the position where the defect has occurred more quickly. In this example, an arrow is formed on the upper side in the figure and the right side in the figure, an extension line of the arrow formed on the upper side, and an arrow formed on the right side. A defect has occurred at the intersection with the extension line.

DESCRIPTION OF SYMBOLS 1 ... Image forming system, 210 ... Terminal device, 211 ... Monitor, 220 ... Image reading apparatus, 244 ... Collation processing part, 245 ... Result holding part, 246 ... Code image formation control part, 300 ... Paper storage apparatus

Claims (8)

Image forming means for forming an image on a recording material based on original image data that is an image source;
A judging means for judging whether or not a formed image formed on a recording material by the image forming means satisfies a predetermined condition;
Image reading means for reading the formed image on the recording material and generating read image data ;
And read image data by the image reading means of said forming images determined by said determining means that before Symbol does not satisfy the predetermined condition, and storage means for storing in association with identification information,
An image including the identification information associated with the read image data of the formed image with respect to the recording material on which the formed image determined by the determining unit is determined not to satisfy the predetermined condition Identification image forming means for forming an identification image,
The read image data stored in the storage means, and an image based on the read image data corresponding to the identification information obtained from the identification image formed on the recording material together with the formed image is displayed. Image display means for displaying an image based on the original image data that is the basis of the formed image;
An image inspection system comprising:   The image display means displays the formed image by displaying the image based on the read image data, and satisfies the predetermined condition of the formed image when displaying the formed image. Each of the parts that are not displayed is displayed in order, and when the part that does not satisfy the predetermined condition is displayed in order, the display is performed in order from the one that does not satisfy the predetermined condition most. The image inspection system according to claim 1. Further comprising a loading means for loading the recording material determined by the determining means;
The stacking unit is formed with a recording material on which a formed image determined to satisfy the predetermined condition is formed, and a formed image determined not to satisfy the predetermined condition is formed. The image inspection system according to claim 1, wherein the recording material is shifted and stacked. When the user wishes to form an image again based on the original image data that is the basis of the formed image determined by the determining means that the predetermined condition is not satisfied, the user A receiving means for receiving an image formation instruction;
The determining means identifies a portion of the formed image formed on the recording material that does not satisfy the predetermined condition;
When there are a plurality of the portions that do not satisfy the predetermined condition in one page, the image display means sequentially displays the portions that do not satisfy the predetermined condition, and performs the image formation again. 2. The display of a portion that has not been displayed yet is omitted from the portion that does not satisfy the predetermined condition when the instruction is received by the receiving means. Image inspection system. A judging means for judging whether or not a formed image formed on a recording material based on original image data as an image source satisfies a predetermined condition;
Image reading means for reading the formed image on the recording material and generating read image data ;
And read image data by the image reading means of said forming images determined by said determining means that before Symbol does not satisfy the predetermined condition, and storage means for storing in association with identification information,
An image including the identification information associated with the read image data of the formed image with respect to the recording material on which the formed image determined by the determining unit is determined not to satisfy the predetermined condition Identification image forming means for forming an identification image,
The read image data stored in the storage means and corresponding to the identification information obtained from the identification image formed on the recording material together with the formed image; and Output means for outputting original original image data;
An image inspection apparatus comprising:   The image inspection apparatus according to claim 5, wherein the identification image forming unit forms the identification image on a portion of the recording material that is cut off by a cutting process performed later. A determination function for determining whether or not a formed image formed on a recording material based on original image data as an image source satisfies a predetermined condition;
A function of causing the image reading unit that reads the formed image on the recording material to read the formed image and generate read image data ;
And read image data by the image reading means of said forming images determined to pre SL does not satisfy the predetermined condition, a function of storing in the storage unit in a state of associating the identification information,
An identification image is formed on a recording material on which the formed image determined to not satisfy the predetermined condition, and includes the identification information associated with the read image data of the formed image. A function for causing the image forming means to form an identification image as an image;
The read image data stored in the storage unit corresponding to the identification information obtained from the identification image formed on a recording material together with the formed image, and the formed image A function for causing the output means to output the original original image data;
A program to make a computer realize. Determining whether the formed image formed on the recording material based on the original image data from which the image is based satisfies a predetermined condition;
Read the formed image on the recording material, generate read image data ,
And read image data obtained by reading the formed image is determined before Symbol does not satisfy the predetermined condition, in association with identification information stored in the storage unit,
An identification image that is an image including the identification information associated with the read image data of the formed image with respect to a recording material on which the formed image is determined not to satisfy the predetermined condition Form the
Read image data corresponding to identification information obtained from the identification image formed on the recording material together with the formed image, the read image data stored in the storage unit, and the source of the formed image An image data output method for outputting original image data.

Images