Management device and program

Abstract

To enable a job determined to be defective to be grasped in an image formation apparatus which can determine the defect of an image on a transfer medium.SOLUTION: An image formation apparatus includes: an image formation unit which forms an image on a transfer medium on the basis of a job; and a control unit which manages the job and can present the history of the job that has been already output. The control unit acquires the reading result obtained by reading the image on the transfer medium, determines whether the image is defective on the basis of the reading result, and presents the job that has been determined to be defective in an identifiable manner in the history presentation of the job that has been already output when the image is determined to be defective.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] This invention can determine defects in the image on the transfer medium. tube This document relates to a processing device and a program. [Background technology]

[0002] In the field of image forming devices that print images on paper, one of the challenges is to check whether the output printout is printed correctly. For this reason, various methods have been proposed for checking the quality of the image on the printout. For example, in Patent Document 1, when a print job is output, page data is extracted as a sample, and the extracted page data can be displayed on a display, allowing comparison with the output printout. However, this has the drawback of requiring the user to be glued to the machine in order to compare and check the printout, making it difficult to operate.

[0003] Furthermore, Patent Document 2 discloses a technique for scanning an image of an output printout, reducing the image to generate a thumbnail, and printing out the thumbnail after the job output is complete. The technology in Patent Document 2 allows for efficient wear checks without reducing productivity by checking for wear collectively after the job output is complete, even when multiple jobs are output. However, a drawback is that it is difficult to detect wear with high accuracy using reduced thumbnails. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-152882 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-168157 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, as a method for determining the quality of printed matter, a system has been proposed in which an image printed by an image forming device is read by a downstream wear detection sensor (scanner, etc.), and the image data for printing is compared with the read image data, thereby automatically detecting printed matter that has become worn (defective) due to poor printing, etc. Such systems can automatically detect wear, but when inspecting images for which wear has been detected after job output has been completed, there is a problem in that it is difficult to confirm information about the wear, such as which job the wear was detected in.

[0006] The present invention has been made in light of the above-mentioned problems, and when a defect in an image on a transfer medium is determined, it is possible to easily grasp the job in which the defect is detected. tube The purpose of this invention is to provide a management device and a program. [Means for solving the problem]

[0022] In the management device of the first embodiment of the present invention, a display unit displays a job for which wear has been detected by determining whether an image formed on a recording medium by an image forming unit is worn or not by reading the image obtained by an image reading unit. Only about a control unit that controls displaying the list; The control unit is characterized in that, in the row of the job in which the wear was detected displayed in a list on the display unit, the number of pages for which the judgment was made for the job in which the wear was detected, and the number of pages for which the judgment was made for the job in which the wear was detected were determined to be worn as a result of the judgment. Another aspect of the present invention is a management device in which detailed information about the waste of a job in which the waste is detected is displayed on the display unit. Another aspect of the management device of the present invention is characterized in that, in another aspect of the invention, detailed information about the waste is displayed on the display unit by selecting a button provided on the display screen of the list. Another form of the management device invention is characterized in that in another form of the invention, the detailed information about the wear includes one or more of the page number on which the wear was detected, the position where the wear occurred within the page, and a scanned image of the page on which the wear was detected.

[0023] In a first aspect of the program of the present invention, a job in which wear is detected by determining whether an image formed on a recording medium by an image forming unit is worn or not by reading the image by an image reading unit is worn or not is displayed on a display unit. Only about A program executed by a control unit that controls displaying in a list, The method is characterized in that the control unit executes a step of displaying, in the row of the job in which the wear was detected displayed in a list on the display unit, the number of pages for which the judgment was made for the job in which the wear was detected, and the number of pages for which the judgment was made for the job in which the wear was detected.

[0024] The invention of another aspect of the program is characterized in that, in the invention of the above aspect, detailed information about the waste of the job in which the waste is detected is displayed on the display unit. Another aspect of the invention of the program is characterized in that, in the above aspect of the invention, detailed information about the waste is displayed on the display unit by selecting a button provided on the display screen of the list. Another form of the program invention is characterized in that, in the above-mentioned form of the invention, the detailed information on the wear includes one or more of the page number on which the wear was detected, the position on the page where the wear occurred, and a scanned image of the page on which the wear was detected. [Effects of the Invention]

[0025] According to the present invention, it is possible to identify jobs that have been determined to be defective when presenting the history of jobs that have already been output, and it is therefore possible to easily check for wear even when checking for wear after the output of a job has been completed. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a diagram illustrating an outline of a mechanical configuration of an image forming apparatus according to an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 10 is a diagram showing the job output history display screen. [Figure 4] FIG. 10 is a diagram showing another example of the job output history display screen. [Figure 5] FIG. 10 is a diagram showing another example of the job output history display screen. [Figure 6] FIG. 10 is a diagram showing another example of the job output history display screen. [Figure 7] FIG. 10 is a diagram showing a ticket details display screen for an output job. [Figure 8] FIG. 10 is a diagram showing a screen displaying a job waste output history list. [Figure 9] 10 is a flowchart showing a procedure for adding wear information to output job information and displaying the added information. [Figure 10] 10 is a flowchart showing the procedure for displaying the job list. [Figure 11] 10 is a flowchart showing a procedure for blinking a tab of a job list when wear is detected. DETAILED DESCRIPTION OF THE INVENTION

[0027] An image forming apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram showing an outline of the mechanical configuration of an image forming apparatus 1. As shown in FIG. The image forming apparatus 1 comprises, in order from the upstream side in the paper transport direction, a device main body 10, a relay device 20, and a reading device 30. Each device is mechanically and electrically connected, enabling communication between the devices and paper transport.

[0028] The configuration of the image forming apparatus 1 of the present invention is not limited to the above configuration, and may further include other devices. For example, a paper feeder that feeds paper may be provided in front of the apparatus main body 10, and a post-processing device may be provided in back of the reading device 30. Alternatively, the image forming apparatus 1 may be configured by only the apparatus main body 10, and an image forming system may be configured together with the relay device 20 and the reading device 30. Furthermore, in the present invention, the reading device does not have to be mechanically connected inline to the image forming apparatus, as long as the reading results can be obtained by the image forming apparatus.

[0029] The device main body 10 is provided with an operation unit 140 at the top of the housing that displays information and accepts operation inputs. The operation unit 140 has a touch panel LCD 141 that can display various operation screens. The LCD 141 corresponds to the display unit and operation unit of the present invention.

[0030] The upper part of the housing of the device main body 10 is further provided with an automatic document feeder (ADF) 135. The automatic document feeder (ADF) 135 can automatically feed a document set therein, and the fed document is read by a CCD of the scanner unit 130. Furthermore, a platen glass 137 is provided on the top of the device body 10, and the document can also be read by placing the document on the platen glass. The scanner unit 130 is used to read an original document, but can also be used to read an image of an output printout. In this case, the scanner unit 130 corresponds to a reading device.

[0031] A main body paper feed unit 12 for storing paper is provided at the bottom of the device main body. The main body paper feed unit 12 can supply the stored paper to a transport path 13. The paper corresponds to the transfer medium of the present invention. Note that the material of the transfer medium is not limited to paper in the present invention, and transfer media made of cloth or plastic can also be used.

[0032] A transport path 13 is provided inside the device main body 10. Transport rollers are provided around the transport path 13, and the transport rollers are driven to transport paper supplied from the main body paper feed unit 12 along the transport path 13.

[0033] An image forming unit 11 is provided midway along the conveying path 13 . The image forming unit 11 has a photoconductor 11a for each color, and around the photoconductor 11a for each color, in counterclockwise order, a charger 11b, an exposure unit 11c, a development unit 11d, and a cleaning unit 11e are provided. The photoconductor 11a contacts the intermediate transfer belt 11f between the development unit 11d and the cleaning unit 11e. Note that in the figure, the photoconductor, charger, exposure unit, and development unit provided for one color are given reference numerals, and the photoconductors, chargers, exposure units, and development units for the other colors have similar structures and are provided along the intermediate transfer belt.

[0034] The intermediate transfer belt 11f can come into contact with the paper on the conveying path 13 at the secondary transfer portion 11g. A fixing unit 11h is provided on the conveying path 13 at a position downstream of the secondary transfer portion 11g in the conveying direction. When forming an image on paper, the surface of photoconductor 11a is charged by charger 11b, and then a latent image is formed on the surface of photoconductor 11a by exposure unit 11c. The formed latent image is then developed into a toner image by development unit 11d. The toner image on photoconductor 11a is transferred to intermediate transfer belt 11f. These operations are also performed on photoconductors 11a for other colors, and toner images of each color are superimposed and transferred to intermediate transfer belt 11f. The toner image on intermediate transfer belt 11f is transferred to paper at secondary transfer unit 11g, and the transferred image on the paper is heated and fixed by fixation unit 11h.

[0035] Downstream of the fixing unit 11h, a reversing conveying path 13a branches off from the conveying path 13. The reversing conveying path 13a is provided with a reversing section 13b, which reverses the front and back sides of the paper fed into the reversing section. The downstream side of the reversing conveying path 13a merges with the conveying path 13 at a position upstream of the image forming section 11. When an image is to be formed on the back side of the paper, the paper passes through the fixing device 11h and is introduced into the inversion conveying path 13a, where the front and back of the paper are reversed in the inversion section 13b, and the paper is returned to the upstream side of the conveying path 13 in an inverted state, and an image is formed on the back side of the paper in the image forming section 11. When only the paper is to be turned over, the paper is introduced into the reversing conveyance path 13a and conveyed in the reversed state to the conveyance path 13 downstream of the fixing device 11h. When the paper is not to be turned over or an image is not to be formed on the back side, the paper is conveyed straight without being sent to the reversing conveyance path 13a.

[0036] The conveying path 13 is connected to a conveying path 23 of the relay device 20 at the subsequent stage, and the paper discharged from the device main body 10 is conveyed to the conveying path 23 of the relay device 20. In the relay device 20, the paper is reversed in the conveying path 23 as necessary and conveyed downstream. In the relay device 20, the conveying path 23 is connected to the conveying path 33 of the reading device 30 at the subsequent stage, and the paper that has passed through the relay device 20 is introduced into the reading device 30 at the subsequent stage.

[0037] The reading device 30 is provided with, in the middle of the conveying path 33, in order from the upstream side in the conveying direction of the paper, an image reading unit 31 that reads an image on the bottom surface of the paper, an image reading unit 32 that reads an image on the top surface of the paper, and a colorimeter 34 that measures the color of the top surface of the paper. The image reading unit 31 reads an image on the bottom surface of the paper fed on the conveying path 33, the image reading unit 32 reads an image on the top surface of the paper fed on the conveying path 33, and the colorimeter 34 measures the color of the image on the top surface of the paper fed on the conveying path 33. The image reading units 31 and 32 can be configured with, for example, line sensors such as CMOS sensors or CCD sensors. The read data acquired by the image reading units 31 and 32 and the colorimeter 34 is sent to the control CPU 113 as the reading results and is used to determine image defects (waste) and for various adjustments. The paper discharged from the reading device 30 is ejected to a paper output tray (not shown).

[0038] In this embodiment, image reading units 31 and 32 are provided within the reading device 30, but the location of the image reading units is not limited to being provided within the reading device, and the image reading units may be provided, for example, within the device main body 10 or the relay device 20.

[0039] Next, the functional blocks of the image forming apparatus 1 will be described with reference to FIG. The image forming apparatus 1 mainly comprises a digital copier main body having a control block 110, a scanner unit 130, an operation unit 140, and a printer unit 150, and an image processing unit (print & scanner controller) 160 that processes image data input and output to and from an external device 4. The external device 4 is connected to the image processing unit (print & scanner controller) 160 via a network 3.

[0040] The control block 110 has a PCI bus 112 connected to an image processing unit (print & scanner controller) 160. A DRAM control IC 111 is connected to the PCI bus 112, and an image memory 120 made up of DRAM is connected to the DRAM control IC 111. The image memory 120 is made up of a compression memory 121 that stores compressed image data, and a page memory 122 that stores uncompressed data for image formation.

[0041] Furthermore, a controller IC 118 is connected to the PCI bus 112, and an HDD 127 is connected to the controller IC 118. The controller IC 118 controls the writing and reading of data to the HDD 127, and the HDD 127 can store image data acquired from the external device 4, image data read by the scanner unit 130, and the like. It is also possible to store programs, parameters, and the like in the HDD 127.

[0042] The control block 110 includes a control CPU 113. The control CPU 113 is configured by a CPU and storage units such as a ROM and a RAM, and a DRAM control IC 111 is connected to the control CPU 113. In addition, nonvolatile memory 115 that stores data in a nonvolatile manner is connected to control CPU 113. Nonvolatile memory 115 stores various programs, setting data, parameters, etc. that operate each part of image forming apparatus 1, and control CPU 113 reads out the programs stored in nonvolatile memory 115 to control each part of image forming apparatus 1.

[0043] In addition, the non-volatile memory 115 stores a program for displaying the output history of a job, a program for determining whether an image is defective based on the results of reading the image on the paper, a program for calculating the detection rate of defects (waste) in a job, operating parameters, etc. The method for determining whether an image is defective is not particularly limited, and known methods such as pattern matching can be used, and a threshold value for determining whether an image is defective can be set. The threshold value may be changeable by the user.

[0044] Furthermore, non-volatile memory 115 stores job output history information, information on the details of detected defects (waste), and the like in a readable and writable manner, and control CPU 113 can perform control to display history information based on the history information and waste information stored in non-volatile memory 115. In addition to being displayed on operation unit 140, the history information can also be printed on a transfer medium or transmitted to an external device. Note that information on waste may be stored in association with job output history information. In this embodiment, the control CPU 113 and the program executed by the control CPU 113 constitute the control unit of the present invention. Note that the storage location of the program is not particularly limited in the present invention, and the program may be stored in the HDD 127, for example, or may be stored in a portable, removable storage medium and distributed.

[0045] An RTC 125 (date and time data generator) is also connected to the control CPU 113. The RTC 125 operates as a clock within the computer and can transmit date and time data to the control CPU 113.

[0046] The control CPU 113 is connected to a scanner control unit 132 of the scanner unit 130 so as to be capable of serial communication. The scanner unit 130 has a CCD 131 that optically reads an image on a sheet of paper, and a scanner control unit 132 that controls the entire scanner unit. The scanner control unit 132 is controlled by the control CPU 113, and can read images from the CCD 131. The scanner control unit 132 is made up of a CPU, a program that runs on the CPU, etc. The read image data is subjected to predetermined processing in the reading processing unit 116.

[0047] The control CPU 113 is further connected to an operation unit control unit 142 of an operation unit 140 so as to be capable of serial communication. The operation unit 140 has an LCD 141 that displays information, and an operation unit control unit 142 that controls the entire operation unit 140. The operation unit control unit 142 receives instructions from the control CPU 113 and controls the display and operation input on the LCD 141. The operation unit control unit 142 is configured by a CPU and a program that runs on the CPU.

[0048] The control CPU 113 is also connected to a printer control unit 152 of a printer unit 150 . The printer unit 150 includes an LD 151 and a printer control unit 152. The LD 151 is included in the exposure unit 11c in Fig. 1. The LD 151 forms a latent image on the photoconductor 11a based on image data processed by the write processing unit 123. The printer control unit 152 receives control commands from the control CPU 113 and controls the printer unit 150. Therefore, the control CPU 113 can control the image forming operation, paper transport, and the like. The printer unit 150 is made up of the image forming unit 11, a paper feed tray, a mechanism for transporting paper, and the like.

[0049] The DRAM control IC 111 is connected to a read processing unit 116, a write processing unit 123, and a compression / decompression IC 117. The reading processing unit 116 performs predetermined processing such as A / D conversion and shading on image data read by the scanner unit 130 or the like. The write processing unit 123 converts and corrects the data into data suitable for image formation in the image forming unit 11 . The compression / decompression IC 117 compresses image data or decompresses compressed image data. The compressed image data is stored in the compression memory 121 of the image memory 120 or in the HDD 127.

[0050] A DRAM control IC 161 of an image processing unit (print and scanner controller) 160 is connected to the PCI bus 112 . In the image processing unit (print & scanner controller) 160, an image memory (DRAM) 162, a controller control unit 163, and a LAN control unit 164 are connected to a DRAM control IC 161, and a LAN interface 165 is connected to the LAN control unit 164. The LAN interface 165 is connected to a network 3, to which an external device 4 is connected.

[0051] An I / O 128 is also connected to the PCI bus 112. The I / O 128 is a port for communicating with devices other than the device main body 10, and through the I / O 128, for example, the control CPU 113 can acquire read image data read by the image reading units 31 and 32 or the colorimeter 34 of the reading device 30 as the reading result.

[0052] The external device 4 includes an external control unit 400 that controls the external device 4, and an external display unit 410 that displays information. The external control unit 400 is configured by a CPU, a storage unit, a program running on the CPU, etc., and the external display unit 410 is configured by an LCD, etc. The external display unit 410 may be configured to be able to display the history of jobs that have been output. The external device 4 can function as a terminal, and may also function as a management device that manages at least jobs of the image forming apparatus 1. The management device may instruct and control image formation in the image forming apparatus. When the image forming apparatus 1 is controlled by the external device 5, the program of the present invention is stored and executed in the external device control unit 400. It is also possible to make the external display unit 410 function as the display unit of the present invention. Furthermore, in addition to the external device 4, the image forming device 1 can be connected to a display device, a remote device, or the like via a network.

[0053] Next, the basic operation of the image forming apparatus 1 will be described. First, the procedure for storing image data in the image forming apparatus 1 will be described. When an image of an original is read by scanner unit 130, the image data read by scanner unit 130 is sent to read processing unit 116, where predetermined processing is performed. The processed image data is sent to compression / decompression IC 117 via DRAM control IC 111, and compression processing is performed in compression / decompression IC 117. The compressed image data is stored in compression memory 121 or HDD 127. The stored image data is managed as a job together with printing conditions by control CPU 113.

[0054] When image data is acquired externally, for example, from external device 4, the image data is received by LANIF of image processing unit (print & scanner controller) 160 and then temporarily stored in image memory (DRAM) 162 via LAN control unit 164. Thereafter, the image data stored in image memory (DRAM) 162 is read out under the control of DRAM control IC 161 and sequentially sent to compression / decompression IC 117 via DRAM control IC 111 for compression processing. The compressed image data is stored in compression memory 121 or HDD 119 via DRAM control IC 111 and is managed by control CPU 113 in the same manner as above.

[0055] When image forming apparatus 1 outputs an image, image data stored in compression memory 121 or HDD 119 is sent to compression / decompression IC 117 via DRAM control IC 111 to expand the image data, and the expanded image data is repeatedly expanded to LD 154A by write processing unit 123. LD 151A then forms a latent image on a photosensitive member based on the image data, and the image is developed, transferred, fixed, etc. in image forming unit 11, forming the image on paper and producing a printed matter. The output job is managed by control CPU 113 and readably stored in non-volatile memory 115 or HDD 127 as an output job. Furthermore, a tab for a job that has been output is created on the operation unit 140, and a list of the history of the job that has been output is displayed in this tab. This tab may be displayed at the top when another tab overlaps and the tab is pressed, or a tab displaying a list of the history of the job that has been output may be automatically displayed at the top when the output of the job is completed.

[0056] The paper is then transported to reading device 30 via relay device 20. In reading device 30, if an image is formed on one side of the paper, that is, the back side, the image is read by image reading unit 31, and if an image is formed on one side of the paper, that is, the front side, the image is read by image reading unit 32. If an image is formed on both sides of the paper, the images are read by image reading units 31 and 32. Furthermore, if the color of the image is to be measured by colorimeter 34, the paper is transported with the side to be measured facing up, and colorimeter 34 measures the color. The reading results of the image reading units 31, 32 and the colorimeter 34 are transmitted from the reading device 30 to the apparatus main body 10, and the reading results are acquired by the control CPU 113 via the I / O 128. The control CPU 113 adjusts the image and determines whether there is any wear based on the reading results.

[0057] Next, we will explain the operation of displaying jobs containing waste in an identifiable manner in the output history display when waste is detected. The display of the history may be performed automatically at a predetermined timing, such as after the job is completed, or may be performed based on user operation.

[0058] The control CPU 113 determines whether there are any defects in the image by comparing the results of reading by the reading device 30 with the print image data. However, if an image defect (wear) is detected, the user must check the worn image, and from the viewpoint of productivity, it is desirable for the user to check the wear collectively after the output of all jobs is completed. Therefore, even when multiple jobs are output, it is required to be able to easily check which job and where the wear was detected among the created products. In this embodiment, when wear is detected, the job containing the wear is displayed in an identifiable manner on the display screen of the job output history, and further, the wear information is displayed in addition to the job history on the display screen of the job output history, making it possible to easily check the wear information.

[0059] A method for identifying a job in which waste is detected in the output history is, for example, to add a mark to the display of the job in which waste is detected. The mark corresponds to the identification information of the present invention. 3 is a diagram showing an example of an output history display screen. This screen may be displayed on the LCD 141 of the operation unit 140, or on the external display unit 410 of the external device 4, or on the display unit of another device connected to the network 3. The same applies to other operation screens.

[0060] 3, an output history tab 1411 in a job list tab 1410 is selected, and an output history list 1420 is displayed on the display screen of the output history tab 1411. On the right side of the output history list 1420, a details button 1430 for displaying detailed information about the job and a waste list display button 1440 for extracting only jobs for which waste has been detected are displayed in a pressable manner.

[0061] The output history display list 1420 has a wear detection display field 1421 that indicates whether or not wear has been detected. In this example, for a job with a file name of "Test 002", a mark 1422 is displayed in the wear detection display field 1421. The display of the mark 1422 enables the user to understand that the job "Test 002" contains wear. In FIG. 3, "*" is used as the mark, but the type of mark is not particularly limited in the present invention, and other types of symbols may be used. Furthermore, instead of displaying a mark, the display color or background color of a job in which wear is detected may be changed to indicate that the job contains wear. In this case, the display color or background color corresponds to the identification information of the present invention. In addition, two or more of displaying a mark, changing the color of the characters, and changing the background color may be performed simultaneously.

[0062] Furthermore, when presenting the output history, in addition to a mark indicating that the job is one in which waste has been detected, the rate at which waste has occurred may also be presented. FIG. 4 shows a display screen 1500 in which the waste detection rate is displayed on the output history screen, and an output history list 1520 is displayed on the display screen of an output history tab 1511. A details button 1530 is an operation button for displaying detailed information about a job, and a waste list display button 1540 is an operation button for extracting only jobs for which waste has been detected. 4, a mark 1522 is displayed in the wear detection display field 1521 at the beginning of the job with the file name "Test 004," and a wear detection rate 1524 is displayed in the wear detection rate display field 1523. Here, "15 / 200" is displayed, indicating that 15 images out of 200 images were detected as worn. By adding the wear detection rate to the output history display, the user can easily understand the wear detection rate, determine the priority of wear checks, and predict machine failure if the wear detection rate is high. The wear detection rate can be displayed as a percentage, etc.

[0063] FIG. 5 is a diagram showing an example of a display screen 1600 when the detection rate of waste is displayed in percentage. On the display screen 1600, an output history list 1620 is displayed on the display screen of an output history tab 1611. A details button 1630 is an operation button for displaying detailed information about a job, and a waste list display button 1640 is an operation button for extracting only jobs for which waste has been detected. 5, for the job "Test 005," a mark 1622 indicating that wear has been detected is displayed in a wear detection display field 1621, and furthermore, a wear detection rate 1624 is displayed in a wear detection rate display field 1623, indicating that the wear detection rate is 40%. A details button 1630 is an operation button for displaying detailed information about the job, and a wear list display button 1640 is an operation button for extracting only jobs in which wear has been detected. 4 and 5, both the wear detection display field and the wear detection rate are displayed, but it is also possible to display only the wear detection rate. In this case, the display of the wear detection rate allows the user to know that wear has occurred in the job, and the wear detection rate corresponds to the identification information of the present invention.

[0064] Furthermore, in another embodiment, when displaying the output history, the job in which the waste was detected is displayed together with whether or not the waste image has been confirmed. 6, an output history list 1720 is displayed on the display screen of an output history tab 1711 on a display screen 1700. A details button 1730 is an operation button for displaying detailed information about a job, and a waste list display button 1740 is an operation button for extracting only jobs for which waste has been detected. Furthermore, in display scene 1700, a mark 1722 is displayed in a wear detection display field 1721 for the job with the file name "Test 002", and a check mark 1725 is displayed for the job with the file name "Test 006". The display in the wear detection display field indicates that wear has been detected in the jobs "Test 002" and "Test 006".

[0065] However, on this screen, the "*" mark attached to the "Test 002" job indicates that the user has not confirmed the waste, and the check mark attached to the "Test 006" job indicates that waste has occurred and that the user has confirmed the waste. Whether the waste has been confirmed can be determined by, for example, the user pressing the confirmation button on the details display screen in Figure 7 described below, and when it is selected that the waste has been confirmed, the "*" mark is changed to a check mark. Also, when the details button is pressed on the list of the relevant job, it may be set to confirmed as having been confirmed. By displaying that the waste has been checked, the user can easily understand that the checking work or checking action has been performed.

[0066] Furthermore, in the present invention, when displaying the output history, it is possible to add wear information to the information on the output job that has been determined to be defective and display it. Information on the content of the wear includes, for example, the page number and number of copies on which the wear was detected, and information on the location where the wear occurred. This information makes it easy to grasp the location where the wear was detected. The wear information can be displayed on a details screen corresponding to the output job. The details screen corresponds to the detailed display of the job in this invention.

[0067] Fig. 7 shows a job details screen 1800. The job details screen 1800 is displayed by selecting a predetermined job on the display screens 1400, 1500, 1600 or 1700 in Figs. 4 to 6 and pressing the details button 1430, 1530, 1630 or the details button 1730. In FIG. 7, the display is made by selecting the job "Test 002" on the display screen 1400 or the display screen 1700 and then pressing the details button 1400 or the details button 1700.

[0068] The job details screen 1800 displays the job's basic settings, paper settings, and output settings, as well as wear information 1810. The wear information includes the page number (page 1 and page 5) on which wear was detected and the position of the wear within the page (bottom right of the image for page 1, and top right of the image for page 5). Note that the wear information displayed as history information is not limited to the page number and the position of the wear, and the number of copies on which wear was detected or the scanned image of the page on which wear was detected may also be displayed as a thumbnail. In the output history information, by adding the worn-out information to the information of the job that has been determined to be worn-out and displaying it, the user can easily check the worn-out image.

[0069] On the job details screen 1800, a waste confirmation button 1820 displayed at the bottom right of the waste information 1810 is a button for indicating that the user has confirmed the waste. When the user presses the waste confirmation button 1820 after checking the waste image, a mark indicating that the waste confirmation has been completed is added on the output history display screen. For example, as shown in the example of FIG. 6, for a job for which the waste confirmation button has been pressed, the "*" mark is changed to a check mark. A separate waste confirmation column may be provided to display whether confirmation has been completed. The confirmation indication makes it possible for the user to easily understand whether the waste image has been checked. It should be noted that on the job details screen for a job in which no image defects have occurred, no information is displayed in the wear information and the wear confirmation button can be grayed out, etc. Also, the wear confirmation button may not be displayed. After checking the waste information or pressing the waste confirmation button on the job details screen 1800, the user can return to the history display screen by pressing the close button 1821.

[0070] When the waste list display button 1440, 1540, 1640 or waste list display button 1740 is pressed on the display screen 1400, 1500, 1600 or display screen 1700, only jobs for which waste has occurred can be extracted from the output history information and displayed as an output list. The display screen in Fig. 8 can display only jobs for which waste has occurred as a waste output history list 1900. This display makes it easy to understand jobs for which waste has occurred. For example, when there are many jobs that have already been output, the state of waste occurrence can be easily understood by displaying only jobs for which waste has occurred.

[0071] Next, the procedure for adding waste information to information about jobs that have already been output and displaying it on the history display screen will be described with reference to the flowchart in Fig. 9. The following procedure is executed under the control of the control unit of image forming apparatus 1 or the external control unit 410 that manages image forming apparatus 1. First, an image printed on paper based on a job is read (step s1), and it is determined whether or not there is a defect (wear) in the image (step s2). As a method of determination, for example, the read image is compared with the print image data, and if there is a predetermined difference between the two, it can be determined that there is wear.

[0072] If the image is determined to be worn (step s2, Yes), wear information is added to the information of the output job (step s3). Examples of wear information include information indicating whether or not there is wear, the page number containing the worn image, the location of the wear, data on the worn image, and the wear detection rate. After step s3, the job information is entered in the output history (step s4), and the procedure ends. When displaying the output history, a mark indicating that the job is one in which wear has been detected may be added, or the wear detection rate may be indicated. Alternatively, the location of the wear or the number of pages may be displayed as wear information, and a wear confirmation button may be displayed in the history, and when the user checks the worn image and presses the wear confirmation button, the display on the history screen may be changed. The content of the wear information displayed on the history display screen is not particularly limited. On the other hand, if it is determined that the read image is not worn (step s2, No), the process proceeds to step s4, where the job information is recorded in the output history, and the procedure ends. According to the above procedure, the waste information is added to the job information in the output history, so that the waste information can be confirmed on the output history screen.

[0073] Furthermore, the image forming apparatus 1 can present a waste list on the output history display screen, extracting only jobs for which waste has been detected. For example, in the example of Fig. 3, when the waste list display button 1440 is pressed, only the job "Test 002" for which waste was detected is displayed. This allows the user to easily understand the waste jobs.

[0074] 10 is a flowchart showing the operation procedure for displaying the waste list. The following procedure is performed by the control unit of the image forming apparatus 1 or the external control unit 400 of the external apparatus 4. When the job list display button is pressed on the job output history display screen (step s10), it is determined whether the job in the output history list has any use information (step s11). If there is use information (step s11, Yes), only the job information with use information is extracted (step s12), and the job with use information is entered in the use list (step s13). Then, the procedure ends. On the other hand, if no use information is included in the job in the output history list (step s11, No), the procedure ends. According to the above procedure, only jobs for which waste has been detected can be extracted and presented as a waste list, allowing the user to easily understand which jobs contain waste and easily check the waste.

[0075] Furthermore, when wear is detected in the image forming apparatus 1, the display of the output history or confirmation of the wear information may be prompted. For example, if the display screen displays information using multiple tabs and one of the multiple tabs displays the history of jobs that have already been output, when a defect is detected, the tab containing the job history is displayed in an identifiable manner. For example, the tab containing the job history is flashed. 4, when wear is detected, the job list tab 1410 is blinked, thereby prompting the user to confirm when wear is detected. In the above description, only the job list tab is flashed, but the present invention is not particularly limited to the area that is flashed, and for example, the output history tab may be flashed. The notification method does not have to be flashing, and for example, the notification may be made by changing the color of the tab. The present invention is not particularly limited to the timing at which the tab is flashed, and the tab may be flashed when wear is detected, or after the output of the job for which wear is detected is completed.

[0076] The procedure for blinking the tab when wear is detected will be described with reference to the flowchart in Fig. 11. The following procedure is performed by the control unit of the image forming apparatus 1 or the external control unit 400 of the external device 4. The image printed on the paper is read (step s20), and it is determined whether the image is worn (defective) (step s21). If the image is worn (step s21, Yes), the job list tab is made to blink (step s22), and the procedure ends. If the image is not worn (step s21, No), the procedure ends without making the job list tab blink. According to the above procedure, when wear is detected, the user can be notified that wear has occurred.

[0077] In the above embodiments, the history information is described as being displayed on a display unit, but in the present invention, the output history is not limited to being displayed, and can be presented in various ways. For example, the history information may be printed on paper or transmitted to an external device. At the transmission destination, the history information can be displayed or printed. Examples of transmission destinations include a display device such as an external device or terminal, a remote device, etc.

[0078] The present invention has been described above based on the above embodiment, but the above description does not limit the scope of the present invention, and appropriate modifications are possible without departing from the scope of the present invention. [Explanation of symbols]

[0079] 1. Image forming device 3 Network 4 External device 10. Device body 11 Image forming unit 13 Transport path 20 Relay device 30 Reading device 31 Image reading unit 32 Image reading unit 33 Transport path 34 Colorimeter 100 control section 113 Control CPU 125 I / O 140 Operation section 150 Printer section 1400 display screen 1411 Output History Tab 1420 Output History List 1421 Wear detection display field 1422 marks 1430 Details button 1440 Yare list display button 1500 display screen 1511 Output History Tab 1520 Output History List 1521 Wear detection display field 1522 marks 1523 Wear detection rate column 1530 Details button 1540 Yare list display button 1600 display screen 1611 Output History Tab 1620 Output History List 1621 Wear detection display field 1622 marks 1623 Wear detection rate column 1700 display screen 1711 Output History Tab 1720 Output History List 1721 Wear detection display field 1722 marks 1723 Wear detection rate column 1725 check mark 1800 Job details screen 1900 display screen 1920 Yare output history list

Claims

1. The display unit has a control unit that performs control to display, in a list, only jobs for which wear has been detected by determining whether or not an image formed on a recording medium by the image forming unit and obtained by reading the image by the image reading unit is worn, The control unit displays, in the row of the job for which the wear was detected displayed in a list on the display unit, the number of pages for which the judgment was made for the job for which the wear was detected, and the number of pages for which the judgment was made for the job for which the wear was detected.

2. The management device according to claim 1 , wherein detailed information about the job in which the waste is detected is displayed on the display unit.

3. 3. The management device according to claim 2, wherein the detailed information about the waste is displayed on the display unit by selecting a button provided on a display screen of the list.

4. The management device according to claim 2 or 3, characterized in that the detailed information on the wear includes one or more of the page number on which the wear was detected, the position on the page where the wear occurred, and a scanned image of the page on which the wear was detected.

5. A program executed by a control unit that controls to display, on a display unit, a list of only jobs for which wear has been detected by determining whether or not an image obtained by reading an image formed on a recording medium by an image forming unit with an image reading unit is worn, A program that causes the control unit to execute a step of displaying, in the row of the job in which the wear was detected displayed in a list on the display unit, the number of pages for which the judgment was made for the job in which the wear was detected, and the number of pages for which the judgment was made for the job in which the wear was detected.

6. 6. The program according to claim 5, wherein detailed information about the waste of the job in which the waste is detected is displayed on the display unit.

7. 7. The program according to claim 6, wherein the detailed information about the waste is displayed on the display unit by selecting a button provided on a display screen of the list.

8. 8. The program according to claim 6, wherein the detailed wear information includes one or more of the page number on which the wear was detected, the position on the page where the wear occurred, and a scanned image of the page on which the wear was detected.

Images