Foam molded product identification apparatus and method for identifying foam molded product

Abstract

To precisely identify information on a foam molded product.SOLUTION: An identification apparatus 10 of a foam molded product 50 includes: acquisition means 12 for acquiring image data of a print 52 put on a surface of the foam molded product 50; storage means for using the image data of a defective print 52 as specific image data and storing relation data in which the specific image data and identification information are related to each other; and specification means for specifying identification information related to the image data of the print 52 acquired by the acquisition means 12 on the basis of the relation data.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an identification device and a method for identifying a foam-molded product. [Background technology]

[0002] In foam-molded products, it is sometimes difficult to distinguish the type of product by appearance. Therefore, in order to identify foam-molded products, it has been proposed to embed an electronic identification medium in the foam-molded product (see, for example, Patent Document 1). However, in Patent Document 1, embedding the electronic identification medium during molding of the foam-molded product is time-consuming. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5357647 Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, if a symbol for identifying the type is printed on the surface of the foam-molded product, the symbol may be difficult to read due to molding defects such as bleeding or missing parts due to voids.

[0005] The present invention has been proposed in consideration of the above-mentioned problems associated with the conventional technology, and aims to provide an identification device and an identification method for foam-molded products that can accurately identify information attached to foam-molded products. [Means for solving the problem]

[0006] A first aspect of the identification device for foam-molded products according to the present invention is as follows: An acquisition means for acquiring image data of a print affixed to a surface of the foam molded product; a storage means for storing associated data in which image data of the defective print is designated as specific image data and the specific image data is associated with identification information; The present invention also includes a specification unit that specifies the identification information corresponding to the image data of the print acquired by the acquisition unit based on the associated data.

[0007] A second aspect of the identification device for foam-molded products according to the present invention is the identification device according to the first aspect, The specific image data may include image data of the print applied to a surface of the foam-molded product in which at least one of a void, a chip, and a distortion exists in the foam-molded product.

[0008] A third aspect of the identification device for foam-molded products according to the present invention is the first or second aspect of the identification device, The specific image data may include image data of the print that is distorted or smudged on the surface of the foam-molded product.

[0009] A fourth aspect of the identification device for foam-molded products according to the present invention is any one of the first, second, and third aspects of the identification device, A reading means for reading an identifier attached to the foam-molded product or a container in which the foam-molded product is contained; The information processing device may further comprise a determination means for determining whether the identifier information read by the reading means and the identification information specified by the specification means are appropriate.

[0010] A first aspect of the method for identifying a foam-molded product according to the present invention is to Acquire image data of the print on the surface of the foam molded product; The gist of the invention is that the image data of the defective print is treated as specific image data, and the identification information corresponding to the acquired image data of the print is identified based on associated data in which the specific image data and identification information are associated. Effect of the Invention

[0011] According to the foam-molded product identification device of the present invention, information attached to the foam-molded product can be identified with high accuracy. According to the method for identifying a foam-molded article of the present invention, the information attached to the foam-molded article can be identified with high accuracy. [Brief description of the drawings]

[0012] [Figure 1] 1 is a schematic diagram showing an identification device according to a first embodiment of the present invention. [Diagram 2] FIG. 11 is a perspective view showing an example of printing on a foam-molded product. [Diagram 3] FIG. 1 is a perspective view showing an example of defective printing on a foam molded product. [Figure 4] FIG. 2 is a block diagram illustrating electrical connections of the identification device of the first embodiment. [Diagram 5] 4 is a diagram showing the positional relationship between an acquisition unit and a foam-molded product in the identification device of the first embodiment. FIG. [Figure 6] 5 is a diagram showing a flow of identification of a foam-molded product using the identification device of the first embodiment. FIG. [Figure 7] FIG. 11 is a schematic diagram showing an identification device according to a second embodiment. [Figure 8] FIG. 11 is a schematic diagram showing a discrimination device according to a third embodiment. [Figure 9] 13 is a diagram showing a flow of identification of a foam-molded product using an identification device of a third embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Next, the identification device and the identification method for foam-molded products according to the present invention will be described below with reference to preferred embodiments and with reference to the accompanying drawings. Note that the embodiments and drawings described below are merely illustrative of one embodiment of the present invention, and are not intended to be used for the purpose of limiting the present invention to these configurations, and may be modified as appropriate without departing from the gist of the present invention. EXAMPLES

[0014] (First embodiment) The identification device 10 according to the first embodiment identifies identification information from a print 52 affixed to the surface of a foam-molded product 50, and identifies the suitability of the foam-molded product 50 based on the identification information. As shown in FIG. 1, the identification device 10 according to the first embodiment identifies each of a plurality of foam-molded products 50 contained in a container 60 arranged at an image capturing position of a table 40. The table 40 includes a stopper 42 that moves between a restricting position where the container 60 protrudes from a mounting surface of the container 60 and a retracted position where the container 60 retracts from the mounting surface, and the stopper 42 in the restricting position positions the container 60 at the image capturing position. The stopper 42 is controlled by a control device 14 (see FIG. 4) of the identification device 10, which will be described later.

[0015] Examples of the foam-molded product 50 include a slab-molded product obtained by feeding a foaming resin material onto a conveyer, foaming it continuously on the conveyer, and then cutting it to a predetermined length, and a mold-molded product obtained by foaming the foaming resin material in a mold. Examples of the material of the foam-molded product 50 include foams such as polyurethane foam and polyolefin-based foam. The foam-molded product 50 is classified into a plurality of types due to differences in material (e.g., the relationship between polyurethane and polyolefin), differences in the blending of foaming resin materials even if the material is of the same type (e.g., the relationship between ester-based polyurethane and ether-based polyurethane), differences in physical properties such as hardness, etc. In addition, the foam-molded product 50 may be classified into types depending on the intended use or shipping destination. It is difficult to distinguish the types of foam-molded products 50 when the difference in type is not apparent in the appearance such as color, when the shapes are the same, or when the difference in shape is small even if the shapes are different. For this reason, a print 52 is attached to the surface of the foam-molded product 50, and the type can be identified from the print 52 or the identification information indicated by the print 52.

[0016] The print 52 is applied to the surface of the foam-molded product 50 by printing using a printing device such as an inkjet printer or a thermal transfer printer, spray painting using a die having slits in the shape of letters, or other methods. The print 52 on the foam-molded product 50 is not particularly limited, but is preferably applied to only one surface of the foam-molded product 50 having multiple surfaces. The print 52 represents the identification information of the foam-molded product 50 by symbols including numbers, letters, signs, and marks represented by the print 52, and may be a combination of multiple symbols or a single symbol (see FIG. 2(a)). The print 52 may also be composed of a group of dots (see FIG. 2(b)), and the display mode of the print 52 is not particularly limited. It is preferable that the print 52 be a combination of multiple symbols from the viewpoints of preventing erroneous recognition and the amount of information. The identification information includes one or more pieces of information such as the type of the foam-molded product 50, the intended use, and the shipping destination.

[0017] 3, defective printing 52 may occur in a foam-molded product 50, and the defective printing 52 is unclear. Defects in the printing 52 are roughly classified into molding defects 54 (see FIG. 3(a)), such as voids, chipping, and distortion, caused by problems in molding the foam, such as insufficient foaming of the foaming resin material and molding shrinkage, and printing defects 55 (see FIG. 3(b)), such as chipping, distortion, and bleeding, caused by the cell structure of the foam, which contains air bubbles.

[0018] 1, a container 60 contains a plurality of foam-molded products 50 with the surface on which the print 52 is provided facing upward. An identifier 62 is attached to the side of the container 60. As the identifier 62, a two-dimensional code such as a barcode or a QR code (registered trademark) is used. The identifier 62 is read by a reading means 16 (to be described later) of the identification device 10 at the imaging position.

[0019] As shown in Figure 1, the identification device 10 includes an acquisition means 12 for acquiring image data of a print 52 on a foam molded product 50, a control device 14 for performing various processes based on the image data acquired by the acquisition means 12, and a reading means 16 for reading an identifier 62 attached to a container 60 in which the foam molded product 50 is contained.

[0020] As shown in FIG. 4, the acquisition means 12 includes an illumination means 18 that irradiates light onto the print 52 on the foam-molded article 50, and an imaging means 20 that captures a two-dimensional image of the print 52 on the foam-molded article 50.

[0021] As shown in Fig. 5, the lighting means 18 is disposed above the multiple foam-molded products 50 contained in the container 60 disposed at the imaging position. The lighting means 18 irradiates light from the front of the print 52 of the foam-molded product 50. The lighting means 18 irradiates light widely onto the entire upper surface of the multiple foam-molded products 50 contained in the container 60 disposed at the imaging position. The lighting means 18 is turned on by a sensor (not shown) that detects the container 60 disposed at the imaging position, and is turned off when the container 60 is not detected by the sensor. For example, an LED light, a fluorescent lamp, an incandescent lamp, a neon lamp, a mercury lamp, or the like can be used as the lighting means 18.

[0022] As shown in Fig. 5, the imaging means 20 is disposed above the multiple foam-molded products 50 contained in the container 60 disposed at the imaging position. The imaging means 20 is disposed in front of the prints 52. The imaging means 20 images an area including all of the multiple foam-molded products 50 contained in the container 60 disposed at the imaging position, and captures a two-dimensional image including the prints 52 of the multiple foam-molded products 50. The imaging means 20 is connected to a control unit 24 (see Fig. 4) described later of the control device 14 via a wired or wireless electric communication line, and captures images under the control of the control unit 24 and transmits the captured two-dimensional image to the control unit 24. For example, a digital camera or a digital video camera can be used as the imaging means 20.

[0023] 4, the control device 14 includes a storage means 22 that stores various information, and a control unit 24 that executes a predetermined process based on the image data acquired by the acquisition means 12 and the information (associated data) stored in the storage means 22. As the control device 14, a known calculator (computer) in which the storage means 22 and the control unit 24 are electrically connected to each other can be used.

[0024] The storage means 22 stores various information such as product type information associated with the information of the identifier 62, quantity information associated with the product type information, and identification information associated with the product type information. The storage means 22 also stores associated data in which the image data of the defective print 52 is regarded as specific image data and the specific image data and the identification information are associated with each other. The associated data also includes data in which the image data of the non-defective print 52 is associated with the identification information. The storage means 22 can be a storage device such as a hard disk drive or a solid state drive (SSD).

[0025] The identification device 10 acquires image data of the defective print 52 as specific image data by the acquisition means 12, and generates associated data by associating and learning the print 52 and the identification information included in the specific image data. Also, the acquisition means 12 acquires image data of the print 52 in various patterns, such as the print 52 arranged horizontally, the print 52 arranged vertically, and the print 52 arranged upside down, and generates associated data by associating and learning the print 52 and the identification information included in the image data. Here, as a method of generating associated data, the associated data may be generated by sequentially providing the identification information corresponding to the print 52 included in the specific image data, but is not limited to this, and the associated data may be generated by machine learning. For example, a data set in which the image data of the print 52 and the identification information are associated with each other may be prepared, and machine learning may be performed using the print 52 included in the specific image data read by the control unit 24 and the image data of the data set to generate associated data in which the print 52 included in the specific image data is associated with the identification information.

[0026] As shown in FIG. 4, the control unit 24 is configured as a microprocessor centered on a CPU 26, and is electrically connected to a ROM 28 that stores various control programs for controlling the storage means 22, and a RAM 30 that temporarily stores various information such as image data acquired by the acquisition means 12 and information on the identifier 62 read by the reading means 16.

[0027] The control unit 24 corresponds to the specifying means of the present invention, and specifies identification information corresponding to the image data of the prints 52 acquired by the acquisition means 12, based on the associated data stored in the storage means 22. The control unit 24 specifies the identification information of all the prints 52 included in the image data acquired by the acquisition means 12, based on the associated data, and distinguishes the identification information for each of the prints 52 of the multiple foam-molded products 50 contained in the container 60. In other words, the control unit 24 also specifies the number of foam-molded products 50 contained in the container 60 based on the number of pieces of identification information specified from the image data.

[0028] The control unit 24 corresponds to the determination means of the present invention, and determines whether the information of the identifier 62 read by the reading means 16 matches the identification information specified from the image data of the print 52 acquired by the acquisition means 12. Specifically, the control unit 24 determines whether the specified identification information is the variety information associated with the information of the identifier 62. The control unit 24 also determines whether the number of pieces of the specified identification information matches the quantity information included in the variety information associated with the information of the identifier 62.

[0029] When the information of the identifier 62 matches the identification information, the control unit 24 controls the stopper 42 to move from the restricted position to the retracted position. When the information of the identifier 62 does not match the identification information, the control unit 24 keeps the stopper 42 in the restricted position. Also, an error may be notified by a notification means such as a display unit or a speaker (not shown).

[0030] A flow of identifying a foam-molded product 50 using the above-mentioned identification device 10 will be described with reference to FIG. 6. A container 60 containing multiple foam-molded products 50 is placed at the imaging position of the platform 40. At this time, the control device 14 controls the stopper 42 to be in the regulated position. Therefore, a user can position the container 60 by placing it against the stopper 42 protruding at the regulated position, so that the multiple foam-molded products 50 contained in the container 60 are placed in front of the imaging means 20 in accordance with the imaging range of the imaging means 20. In addition, when the container 60 is detected by a sensor (not shown), the control device 14 controls the illumination means 18 to irradiate the upper surfaces of the multiple foam-molded products 50 from above.

[0031] The control unit 24 controls the reading means 16 to read the identifier 62 attached to the container 60 (step S100). From the information of the identifier 62 input from the reading means 16, the control unit 24 identifies the product type information and quantity information corresponding to this information.

[0032] The control unit 24 controls the imaging means 20 to capture an image of the foam-molded product 50 (step S101). The imaging means 20 captures an image of a plurality of foam-molded products 50 from above, and inputs image data of the upper surface of the foam-molded product 50 to the control unit 24. The control unit 24 identifies the print 52 from the image data acquired from the imaging means 20. The control unit 24 identifies the identification information of all the prints 52 included in the image data acquired by the acquisition means 12 based on the related data stored in the storage means 22 (step S102). For example, the control unit 24 collates the image data of the captured print 52 with the image data of the print 52 included in the related data, and identifies the print 52 by determining the matching elements between the image data of the print 52 in the related data and the image data of the captured print 52, thereby identifying the identification information represented by the print 52.

[0033] The associated data may be data relating image data of the prints 52 in various orientations to the identification information. In this way, even if the orientations of the prints 52 in the multiple foam-molded products 50 are not uniform as shown in Fig. 1, the control unit 24 can identify the identification information of each print 52 from the image data of the multiple prints 52 in different orientations.

[0034] In the related data, it is preferable that image data of the print 52, including the molding defect 54 and the printing defect 55, is associated with the identification information. In this way, even if the print 52 includes the molding defect 54 and the printing defect 55, as shown in FIG. 3, it is possible to identify the identification information of the print 52.

[0035] The control unit 24 judges whether the information of the identifier 62 read by the reading means 16 matches the identification information specified from the image data of the print 52 acquired by the acquisition means 12 (step S103). If the specified identification information matches the product type information associated with the information of the identifier 62 and the number of the specified identification information matches the quantity information included in the product type information associated with the information of the identifier 62, the control unit 24 judges that there is no incorrect product (step S104: YES). The control unit 24 lowers the stopper 42 to the retracted position (step S105), and the foam-molded product 50 contained in the container 60 becomes available for shipment.

[0036] The control unit 24 determines that there is an incorrect product when at least one of the following occurs: the specified identification information does not match the product type information associated with the information of the identifier 62, or the quantity of the specified identification information does not match the quantity information included in the product type information associated with the information of the identifier 62 (step S104: NO). In this case, the control unit 24 maintains the stopper 42 in the restricting position (step S106) and restricts the shipment of the foam-molded product 50. An inspector then visually inspects the foam-molded product 50, and if there is no problem, the foam-molded product 50 contained in the container 60 is shipped, but if there is a problem, the product is not shipped.

[0037] The above-mentioned identification device 10 and identification method use image data of a defective print 52 as specific image data, and identify the identification information corresponding to the image data of the print 52 acquired by the acquisition means 12 based on the associated data in which the specific image data and the identification information are associated and stored in the storage means 22. In this way, since the specific image data of the defective print 52 is associated with the identification information in the associated data, even if the print 52 is incomplete due to chipping or smearing due to a defect, the identification information can be accurately identified from the image data of the print 52 acquired by the acquisition means 12. Therefore, according to the above-mentioned identification device 10 and identification method, even if it is difficult to completely prevent molding defects 54 in a foam-molded product 50, it is possible to apply the print 52 to the surface of the foam-molded product 50 and inspect the foam-molded product 50 using the print 52 that may be unclear due to molding defects 54. Similarly, according to the above-mentioned identification device 10 and identification method, although it is difficult to completely prevent printing defects 55 in a foam-molded product 50, it is possible to impart a print 52 to the surface of the foam-molded product 50 and inspect the foam-molded product 50 using the print 52, which may be obscured by a printing defect 55.

[0038] Even if the foam-molded products 50 are of different types, if their external shapes are almost the same, it may be impossible to distinguish the types by visual inspection. According to the above-mentioned identification device 10 and identification method, it is possible to identify the identification information from the image data of the print 52 of the foam-molded product 50 acquired by the acquisition means 12, so that the efficiency of inspecting the foam-molded product 50 can be significantly improved.

[0039] Since the specific image data includes image data of the print 52 applied to the surface of the foam molded product 50 in which at least one of voids, chipping, and distortion exists, even if the print 52 is incomplete due to a defect such as chipping or distortion, identification information can be accurately identified based on related data from the image data of the print 52 acquired by the acquisition means 12.

[0040] Since the specific image data includes image data of the distorted or smudged print 52 on the surface of the foam molded product 50, even if the print 52 is unclear due to distortion or smudge due to a defect, the identification information can be accurately identified based on the related data from the image data of the print 52 acquired by the acquisition means 12.

[0041] By determining whether the information of the identifier 62 read by the reading means 16 matches the identification information specified from the image data acquired by the acquisition means 12, the foam-molded product 50 can be inspected with greater accuracy.

[0042] Second embodiment The identification device 100 according to the second embodiment shown in FIG. 7 is different from the first embodiment in that the acquisition means 12 does not include the illumination means 18, and the acquisition means 12 includes only the imaging means 20. In the first embodiment, the identifier 62 is attached to the container 60, but in the second embodiment, the identifier 62 is attached to the surface of the foam-molded product 50. When attaching the identifier 62 to the foam-molded product 50, the identifier 62 may be attached to the same side as the print 52, but in the second embodiment, the identifier 62 is attached to a different side of the foam-molded product 50 from the print 52. The identification method described in the first embodiment can be performed using the identification device 100 of the second embodiment. Here, in the second embodiment, the foam-molded products 50 are arranged one by one at the imaging position, and the identification information is individually specified from the print 52 of the foam-molded product 50. The identification device 100 of the second embodiment and the identification method using the same can also obtain the same action and effect as the first embodiment. Note that in the second embodiment, the same reference numerals are used to designate the same configurations as those in the first embodiment, and the description thereof is omitted.

[0043] Third embodiment The identification device 200 according to the third embodiment shown in Fig. 8 does not include an illumination means 18 as the acquisition means 12, and the acquisition means 12 includes only an imaging means 20, as in the identification device 100 according to the second embodiment. The identification device 200 according to the third embodiment differs from the first and second embodiments in that it does not include a reading means 16 and an identifier 62 is not attached to the surface of the container 60 and the foam-molded product 50. Note that in the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

[0044] In the third embodiment, a plurality of foam-molded products 50 contained in a container 60 are arranged side by side in the width direction W and depth direction D of the container 60, and the order of arrangement is determined in advance. Here, the order of arrangement may be, for example, an order based on the print 52 (identification information), such as a relationship in which a print 52 having identification information A is lined up in the width direction W or depth direction D of a print 52 having another identification information B, or a relationship in which a predetermined number of prints 52 having the same identification information A are lined up in the width direction W or depth direction D of a print 52 having identification information A.

[0045] The storage means 22 stores arrangement order information associated with a predetermined arrangement order of the foam-molded products 50 in each container 60, and the arrangement order information is included in the associated data. The user may input the arrangement order to generate the arrangement order information, but for example, the arrangement order information may be generated by acquiring the arrangement order of the prints 52 from the image data of the prints 52 acquired by the acquisition means 12. The control unit 24 specifies the identification information of all the prints 52 included in the image data acquired by the acquisition means 12 based on the associated data, and specifies the arrangement order. In other words, the control unit 24 also specifies the arrangement order of the foam-molded products 50 contained in the container 60 based on the position of each print 52 (image data of the prints 52) in the image data.

[0046] The control unit 24 judges whether the arrangement order information stored in the storage means 22 matches the arrangement order of the foam-molded products 50 specified from the image data of the prints 52 acquired by the acquisition means 12. Specifically, the control unit 24 judges whether the specified arrangement order of the foam-molded products 50 is the same as the arrangement order associated with the arrangement order information, that is, the predetermined arrangement order.

[0047] When the arrangement order of the foam-molded articles 50 matches the arrangement order information, the control unit 24 controls the stopper 42 to move from the regulating position to the retracted position. When the arrangement order of the foam-molded articles 50 does not match the arrangement order information, the control unit 24 holds the stopper 42 at the regulating position.

[0048] The flow of identifying the foam-molded product 50 using the above-mentioned identification device 200 will be described with reference to FIG.

[0049] The control unit 24 acquires the sorting order information from the storage means 22 (step S110). The control unit 24 specifies a predetermined sorting order for the target container 60 from the sorting order information acquired from the storage means 22. Here, the control unit 24 acquires sorting order information linked to input information, such as a shipping destination input by a user, from the storage means 22. Note that in the third embodiment, the identifier 62 may be read by the reading means 16 as in the first embodiment, and the sorting order information linked to the information of the identifier 62 may be acquired from the storage means 22.

[0050] The image of the foam molded product 50 is captured by the imaging means 20 (step S111), and the control unit 24 identifies the identification information of all the prints 52 included in the image data acquired by the acquisition means 12 based on the related data stored in the storage means 22, and identifies the order of the prints 52 (step S112). The control unit 24 judges whether the order information acquired from the storage means 22 matches the order identified from the image data of the prints 52 acquired by the acquisition means 12 (step S113). If the identified order matches the order associated with the order information, that is, the predetermined order, the control unit 24 judges that there is no incorrect product (step S114: YES), and controls the stopper 42 to retreat (step S115). On the other hand, if the identified identification information does not match the predetermined order, the control unit 24 judges that there is a wrong product (step S114: NO), and maintains the stopper 42 at the regulating position (step S116). The identification device 100 of the third embodiment and the identification method using the same can provide the same effects as those of the first embodiment.

[0051] (Example of change) The present invention is not limited to the above-mentioned items, and may be, for example, as follows: It should be noted that the present invention is not limited to the specific descriptions of the examples and the following modified examples. (1) In the embodiment, the identification device and the identification method are applied to the inspection of foam-molded products. However, the present invention is not limited to this application, and the identification device and the identification method may be applied to other cases, such as sorting foam-molded products by type. (2) In the embodiment, image data of the print is acquired while the foam molded product is stopped at the imaging position. However, this is not limited to this, and image data of the print may be acquired from a foam molded product that moves the imaging position. (3) In the embodiment, a lighting means is provided, but this is not limiting and the lighting means may be omitted. [Explanation of symbols]

[0052] 10 identification device, 12 acquisition means, 16 reading means, 20 imaging means, 22 memory means, 24 control section, 50 foam molded product, 52 printing

Claims

1. An acquisition means for acquiring image data of a print affixed to a surface of the foam molded product; a storage means for storing associated data in which image data of the defective print is designated as specific image data and the specific image data is associated with identification information; and an identification means for identifying the identification information corresponding to the image data of the print acquired by the acquisition means based on the associated data.

2. 2. The foam-molded product identification device according to claim 1, wherein the specific image data includes image data of the print applied to a surface of the foam-molded product in which at least one of a void, a chip, and a distortion is present in the foam-molded product.

3. 2. The foam-molded product identification device according to claim 1, wherein the specific image data includes image data of the print that is distorted or smudged on the surface of the foam-molded product.

4. A reading means for reading an identifier attached to the foam-molded product or a container in which the foam-molded product is contained; 2. The identification device for foam-molded products according to claim 1, further comprising a determination means for determining whether the identifier information read by the reading means is appropriate to the identification information specified by the specifying means.

5. Acquire image data of the print on the surface of the foam molded product; A method for identifying foam-molded products, in which image data of the defective print is designated as specific image data, and the identification information corresponding to the acquired image data of the print is identified based on associated data in which the specific image data and identification information are associated.

Images