JP7456484B2 - Image forming apparatus, management apparatus and program - Google Patents

Description

The present invention relates to an image forming apparatus, a management apparatus, and a program that can determine whether an image on a transfer medium is defective.

In the field of image forming apparatuses that print images on paper, one of the challenges is to confirm whether output printed matter is printed correctly. Therefore, various methods have been proposed for checking the quality of images on printed matter.
For example, in Patent Document 1, when outputting a print job, page data is extracted as a sample, the extracted page data can be displayed on a display, and it is possible to compare and confirm the extracted page data with the output printed matter. However, this method has the disadvantage that it is difficult to operate, as the user must remain glued to the machine in order to compare and confirm the printed matter.

Patent Document 2 also discloses a method of reading an image of an output printout with a scanner, reducing the image to generate a thumbnail, and printing out the thumbnail after the job output is complete. With the technology in Patent Document 2, even when multiple jobs are output, the wear can be checked collectively after the job output is complete, allowing for efficient wear checks without reducing productivity. However, a drawback is that it is difficult to detect wear with high accuracy using reduced thumbnails.

Japanese Patent Application Publication No. 2007-152882 Japanese Patent Application Publication No. 2006-168157

By the way, as a method for determining the quality of printed matter, the image printed by the image forming device is read by a subsequent tear detection sensor (scanner, etc.) and the image data for printing is compared with the read image data. A system has been proposed that can automatically detect printed matter that has become torn (defective) due to printing defects or the like.
Such a system can automatically detect tears, but when inspecting an image in which a tear has been detected after the output of a job is completed, there is a problem in that it is difficult to check information about the tear, such as in which job the tear was detected. There is.

The present invention has been made against the background of the above-mentioned problems, and provides an image forming apparatus, a management apparatus, and a program that can easily identify a job that is determined to be defective when it is determined that an image on a transfer medium is defective. The purpose is to provide

That is, the first form of the image forming apparatus of the present invention is as follows:
an image forming section that forms an image on a transfer medium;
an image reading unit that reads the image formed on the transfer medium;
a control unit that acquires a reading result obtained by reading an image on a transfer medium by the image reading unit , and determines whether the image is defective based on the reading result;
A display section for displaying information;
The control unit includes:
a first display screen that displays jobs that have been determined to be defective in a list format, and also displays jobs that have been determined to be defective so that they can be identified;
A second display screen that displays the position of the defect within the page on the page is displayed as details of the defect information of the job determined to be defective, and the first display screen and the second display screen display the position of the defect on the page. It is characterized by not being displayed at the same time as the display screen .

Another aspect of the image forming apparatus according to the invention is characterized in that, in the display of the determined jobs, the control section adds identification information to the job determined to be defective and displays the job. do.

Another aspect of the invention of the image forming apparatus is characterized in that the identification information includes one or more of a mark indicating a defect, a color display, and a background color.

In another aspect of the invention of the image forming apparatus, in the invention of the aspect described above, the control unit is capable of displaying jobs that are determined to be defective by adding information on the occurrence rate of defects in the display of the determined jobs. It is characterized by:

Another aspect of the invention of the image forming apparatus is characterized in that, in the invention of the aspect described above, the control section is capable of adding and displaying torn information to the job determined to be defective.

Another aspect of the invention of the image forming apparatus is characterized in that the tear information includes one or more of the page number where the defect occurs, the number of copies, and the defective image.

Another aspect of the invention of the image forming apparatus is characterized in that, in the invention of the above aspect, the wear information is displayed as details of defect information of a job determined to be defective.

Another aspect of the invention of the image forming apparatus is that in the invention of the aspect described above, the control unit is capable of displaying whether or not a defective job has been confirmed in the display of the determined job. .

In another aspect of the invention of the image forming apparatus, in the invention of the aspect described above, the control section is capable of displaying information on the display section using a plurality of tabs,
When displaying the determined job on one tab, when the image is determined to be defective, display the tab displaying the determined job so that it can be distinguished from other tabs. It is characterized by

Another aspect of the invention of the image forming apparatus is characterized in that, in the invention of the aspect described above, the control section displays the tab in a blinking manner when displaying the tab in an identifiable manner.

Another aspect of the image forming apparatus according to the invention is characterized in that, in the display of the determined jobs, the control section is capable of displaying only jobs determined to be defective.

In the management device of the present invention, a first embodiment includes a control unit that acquires a reading result of an image on a transfer medium by an image reading unit , and determines whether the image is defective based on the reading result,
The control unit is
a first display screen for displaying in a list form the jobs that have been determined to be defective and for displaying in a identifiable manner the jobs that have been determined to be defective;
The method is characterized in that a first display screen and a second display screen which displays the position of the defect on the page as detailed defect information of the job determined to be defective are displayed on the display unit, and the first display screen and the second display screen are not displayed simultaneously .

A first form of the program of the present invention is a program executed by a control unit, which includes:
acquiring a reading result of reading the image on the transfer medium with an image reading unit ;
determining whether the image is defective based on the reading result;
a first display screen that displays jobs that have been determined to be defective in a list format, and also displays jobs that have been determined to be defective so that they can be identified;
A second display screen that displays the position of the defect within the page on the page is displayed as details of the defect information of the job determined to be defective on the display section, and the first display screen and the second display screen are displayed. The present invention is characterized in that the control unit executes steps that are not displayed simultaneously with the screen .

According to the present invention, it is possible to identify a job that is determined to be defective in presenting the history of outputted jobs, and even when checking for defects after the output of a job is completed, it is possible to easily check for defects. becomes possible.

1 is a diagram schematically showing a mechanical configuration of an image forming apparatus according to an embodiment of the present invention. FIG. FIG. 13 is a diagram showing a job output history display screen. Similarly, it is a diagram showing another example of the job output history display screen. Similarly, it is a diagram showing another example of the job output history display screen. Similarly, it is a diagram showing another example of the job output history display screen. Similarly, it is a diagram showing a ticket details display screen of an output job. FIG. 13 is a diagram showing a screen displaying a job waste output history list. Similarly, it is a flowchart showing a procedure for adding and displaying wear information to output job information. Similarly, it is a flowchart showing a procedure for displaying a play list. Similarly, it is a flowchart showing a procedure for blinking a job list tab when a tear is detected.

An image forming apparatus according to an embodiment of the present invention will be described based on the accompanying drawings.
FIG. 1 is a diagram schematically showing the mechanical configuration of an image forming apparatus 1. As shown in FIG.
The image forming apparatus 1 includes an apparatus main body 10, a relay device 20, and a reading device 30 in order from the upstream side in the sheet conveyance direction. Each device is mechanically and electrically connected to enable communication and paper transport between the devices.

Note that 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 feeding device that feeds paper may be provided at the front stage of the apparatus main body 10, and a post-processing device may be provided at the rear stage of the reading device 30. Alternatively, the image forming apparatus 1 may be configured only by the apparatus main body 10, and the image forming system may be configured together with the relay device 20 and the reading device 30. Further, in the present invention, the reading device does not need to be mechanically connected in-line to the image forming apparatus, and may be any device that can obtain the reading results by the image forming apparatus.

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

The apparatus main body 10 further includes an automatic document feeder (ADF) 135 at the top of the housing. The automatic document feeder (ADF) 135 can automatically feed the set original, and the fed original is read by the CCD of the scanner unit 130.
Further, a platen glass 137 is provided at the upper part of the apparatus main body 10, and the original can also be read by setting the original on the platen glass.
Note that the scanner unit 130 is used to read a document, but it can also be used to read an output image of a print unit. In this case, the scanner unit 130 corresponds to a reading device.

A main body paper feed section 12 for storing paper is provided on the lower side of the main body of the apparatus. The main body paper feeding section 12 can supply the stored paper to the conveyance path 13 .
Paper corresponds to the transfer medium of the present invention. Note that in the present invention, the material of the transfer medium is not limited to paper, and transfer mediums made of cloth or plastic can be used.

A conveyance path 13 is provided inside the apparatus main body 10 . Conveyance rollers are provided around the conveyance path 13 , and in the conveyance path 13 , the conveyance rollers are driven to convey the paper supplied from the main body paper feeding section 12 .

An image forming section 11 is provided midway along the conveyance path 13 .
The image forming section 11 has a photoreceptor 11a for each color, and around the photoreceptor 11a for each color, in counterclockwise order, a charger 11b, an exposure section 11c, a development section 11d, and A cleaning section 11e is provided. The photoreceptor 11a is in contact with the intermediate transfer belt 11f between the developing section 11d and the cleaning section 11e. In addition, in the figure, the photoreceptor, charger, exposure section, and development section provided for one color are numbered, and the structures for other colors are similar, and the intermediate transfer belt are provided along the lines.

The intermediate transfer belt 11f can contact the paper on the conveyance path 13 at the secondary transfer section 11g. A fixing device 11h is provided in the transport path 13 at a position downstream of the secondary transfer section 11g in the transport direction.
When forming an image on paper, the surface of the photoreceptor 11a is charged by the charger 11b, and then a latent image is formed on the surface of the photoreceptor 11a by the exposure section 11c. Thereafter, the formed latent image is developed into a toner image by the developing section 11d. The toner image on the photoreceptor 11a is transferred to the intermediate transfer belt 11f. These operations are also performed on the photoreceptors 11a for other colors, and the toner images of each color are superimposed and transferred to the intermediate transfer belt 11f. The toner image on the intermediate transfer belt 11f is transferred to a sheet of paper in a secondary transfer section 11g, and the transferred image on the sheet of paper is heated and fixed by a fixing device 11h.

On the downstream side of the fixing device 11h, a reversing conveyance path 13a branches from the conveyance path 13. A reversing section 13b is provided in the reversing conveyance path 13a, and the front and back sides of the sheet fed into the reversing section are changed so that the front and back sides are reversed. The downstream side of the reversing conveyance path 13a joins the conveyance path 13 at a position upstream of the image forming section 11.
When forming an image on the back side of the paper, the paper that has passed through the fixing device 11h is introduced into the reversing conveyance path 13a, and the front and back of the paper is switched in the reversing section 13b, and the paper is transferred upstream of the conveyance path 13 with the front and back sides of the sheet reversed. The image forming section 11 forms an image on the back side of the paper.
When only the front and back sides of the paper are to be reversed, the paper is introduced into the reversing conveyance path 13a, and is conveyed to the conveyance path 13 on the downstream side of the fixing device 11h with its front and back sides reversed.
When the front and back sides of the paper are not reversed or an image is not formed on the back side, the paper is transported straight without being sent to the reversing transport path 13a.

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

The reading device 30 includes an image reading section 31 that reads an image on the bottom surface of the paper, an image reading section 32 that reads an image on the top surface of the paper, and an image reading section 32 that reads an image on the top surface of the paper, in order from the upstream side in the transportation direction of the paper, in the middle of the transportation path 33. A colorimeter 34 for measuring color is provided. The image reading unit 31 reads an image of the bottom surface of the paper being sent along the transport path 33 , the image reading unit 32 reads an image of the top surface of the paper being sent along the transport path 33 , and the colorimeter 34 reads the image of the top surface of the paper being sent along the transport path 33 . Measure the color of the image on the top side of the paper being fed.
The image reading units 31 and 32 can be configured with line sensors such as CMOS sensors and CCD sensors, for example. The read data acquired by the image reading units 31 and 32 and the colorimeter 34 is sent to the control CPU 113 as a read result, and is used for determining image defects (fading) and various adjustments. The paper ejected from the reading device 30 is ejected to a paper ejection tray (not shown).

In this embodiment, the image reading sections 31 and 32 are provided in the reading device 30, but the location of the image reading section is not limited to that provided in the reading device, for example, in the device main body 10 or in the relay. An image reading section may be provided within the device 20.

Next, functional blocks of the image forming apparatus 1 will be explained based on FIG. 2.
The image forming apparatus 1 mainly includes a digital copier main body having a control block 110, a scanner section 130, an operation section 140, and a printer section 150, and processes image data input and output between the external device 4 and the external device 4. An image processing unit (print & scanner controller) 160 is provided. An external device 4 is connected to the image processing section (print & scanner controller) 160 via the network 3.

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

Further, 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 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, etc. in the HDD 127.

The control block 110 includes a control CPU 113. The control CPU 113 is configured with 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.
A non-volatile memory 115 that stores data in a non-volatile manner is connected to the control CPU 113. Various programs, setting data, parameters, etc. that operate each part of the image forming apparatus 1 are stored in the non-volatile memory 115, and the control CPU 113 reads out the programs stored in the non-volatile memory 115 to control each part of the image forming apparatus 1.

In addition, the non-volatile memory 115 contains a program that displays the output history of the job, determines whether the image is defective based on the results of reading the image on the paper, and calculates the detection rate of defects (tear) in the job. Stores programs, 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.

Furthermore, the non-volatile memory 115 has job output history information, information about detected defects (tear), etc. recorded in a readable and writable manner. Based on the information, display of historical information can be controlled. In addition to being displayed on the operation unit 140, the history information can be printed on a transfer medium or transmitted externally. Note that the information regarding the loss may be stored in association with the output history information of the job.
The control CPU 113 and the program executed by the control CPU 113 constitute a control unit of the present invention in this embodiment. Note that the storage location of the program is not particularly limited in the present invention; for example, the program may be stored in the HDD 127, or may be stored and distributed in a movable and removable storage medium.

The control CPU 113 is further connected to an RTC 125 (date and time data generator). The RTC 125 operates as a clock within the computer and can transmit date and time data to the control CPU 113.

A scanner control section 132 of a scanner section 130 is connected to the control CPU 113 for serial communication.
The scanner section 130 includes a CCD 131 that optically reads images on paper, and a scanner control section 132 that controls the entire scanner section. The scanner control unit 132 is controlled by the control CPU 113 and can read images on the CCD 131. The scanner control unit 132 is configured by a CPU, a program running on the CPU, and the like. The read image data is subjected to predetermined processing in the reading processing section 116.

The control CPU 113 is further connected to an operation section control section 142 of an operation section 140 for serial communication.
The operation unit 140 includes 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 or a program running on the CPU.

A printer control section 152 of a printer section 150 is further connected to the control CPU 113.
The printer section 150 includes an LD 151 and a printer control section 152. The LD 151 is included in the exposure section 11c in FIG. The LD 151 forms a latent image on the photoreceptor 11a based on the image data processed by the write processing section 123.
The printer control unit 152 can control the printer unit 150 in response to control commands from the control CPU 113. Therefore, the control CPU 113 can control image forming operations, sheet conveyance, and the like.
The printer unit 150 includes the image forming unit 11, a paper feed tray, a mechanism for transporting paper, and the like.

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

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

An I/O 128 is further 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 image reading unit 31, 32 of the reading device 30 or the colorimeter 34 performs reading. Image data can be acquired by the control CPU 113 as a reading result.

The external device 4 includes an external control section 400 that controls the external device 4, and an external display section 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 or the like. The external display unit 410 may be able to display the history of output jobs.
In addition to being able to function as a terminal, the external device 4 may also function as a management device that manages at least the jobs of the image forming apparatus 1 . The management device may instruct and control image formation in the image forming device. Furthermore, 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 section 400. Further, it is also possible to make the external display section 410 function as a display section of the present invention.
Furthermore, in addition to the external device 4, the image forming apparatus 1 can be connected to a display device, a remote device, and the like via a network.

Next, the basic operation of the image forming apparatus 1 will be explained.
First, a procedure for accumulating image data in the image forming apparatus 1 will be explained.
When reading an image of a document in the scanner unit 130, the image data read by the scanner unit 130 is sent to the reading processing unit 116 and subjected to predetermined processing. The processed image data is sent to the compression/expansion IC 117 via the DRAM control IC 111, and compression processing is performed in the compression/expansion IC 117. Compressed image data is stored in compression memory 121 or HDD 127. The stored image data is managed by the control CPU 113 as a job along with printing conditions.

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

When the image forming apparatus 1 outputs an image, the image data stored in the compression memory 121 or the HDD 119 is sent to the compression/expansion IC 117 via the DRAM control IC 111, the image data is expanded, and the expanded image data is The write processing unit 123 repeatedly develops the data on the LD 154A. Thereafter, a latent image is formed on a photoreceptor based on the image data in the LD 151A, and the latent image is developed, transferred, fixed, etc. in the image forming section 11, thereby forming an image on paper and obtaining a printed matter. The output job is managed by the control CPU 113 and readably stored in the nonvolatile memory 115 or HDD 127 as an output job.
Further, in the operation unit 140, a tab for outputted jobs is created, and a list of the history of outputted jobs is displayed in this tab. This tab may be displayed at the top when other tabs overlap and you press the tab. When a job is output, a tab displaying a list of the output job history is automatically displayed. It may also be displayed on the top surface.

The paper is then conveyed to the reading device 30 via the relay device 20. In the reading device 30, if an image is formed on one side of the back side of the paper, the image reading unit 31 reads the image, and if an image is formed on one side of the front side of the paper, the image reading unit 32 reads the image. . If images are formed on both sides of the paper, image reading units 31 and 32 read the images. In addition, when colorimetrically measuring an image using the colorimeter 34, the colorimeter 34 carries out the colorimetry while conveying the image so that the surface on which colorimetry is to be performed is on the upper side.
The reading results of the image reading sections 31 and 32 and the colorimeter 34 are transmitted from the reading device 30 to the device 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 it is torn or not based on the reading results.

Next, when a tear is detected, an operation for displaying a job including a tear so that it can be identified in the display of the output history will be described. The history may be presented automatically at a predetermined timing such as after a job ends, or it may be presented based on a user's operation.

The control CPU 113 determines whether there is any defect in the image by comparing the reading result read by the reading device 30 with the printing image data. However, if a defective image (tear) is detected, the user must check the torn image, and from the viewpoint of productivity, it is recommended that the user check the torn image at once after all jobs have been output. desirable. Therefore, even when a plurality of jobs are output, it is required to be able to easily confirm which job and where in the created product a tear was detected.
In this embodiment, when a tear is detected, the job including the tear is displayed in an identifiable manner on the job output history display screen, and the tear information is also displayed on the job output history display screen. By displaying the information in addition to the above, it is possible to easily confirm the information on the damage.

As a method for presenting jobs in which a tear has been detected in an output history in an identifiable manner, for example, there is a method of adding a mark to a display of a job in which a tear has been detected. The mark corresponds to identification information of the present invention.
FIG. 3 is a diagram showing an example of an output history display screen. Note that this screen may be displayed on the LCD 141 of the operation unit 140, the external display unit 410 of the external device 4, or the display unit of another device connected to the network 3. The same applies to other operation screens.

In the display screen 1400 in FIG. 3, the output history tab 1411 in the job list tab 1410 is selected, and the 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 and can be pressed.

The output history display list 1420 is provided with a tear detection display column 1421 that indicates whether or not tear has been detected. In this example, a mark 1422 is displayed in the tear detection display field 1421 for the job with the file name "Test 002." By displaying the mark 1422, the user can understand that the job of "Test 002" includes a defect.
Although "*" is used as a mark in FIG. 3, 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, , it may be indicated that the job includes a tear by changing the display color or background color of the job in which the tear has been detected. In this case, the display color and background color correspond to the identification information of the present invention. Note that two or more of displaying the mark, changing the color of the characters, and changing the background color may be performed at the same time.

Furthermore, when presenting the output history, in addition to a mark indicating that a job has been detected to have been torn, the rate of occurrence of torn may also be presented.
FIG. 4 shows a display screen 1500 when the tear detection rate is displayed on the output history screen, and an output history list 1520 is displayed on the display screen of the output history tab 1511.
The details button 1530 is an operation button for displaying detailed information of a job, and the error list display button 1540 is an operation button for extracting only jobs in which errors have been detected.
In FIG. 4, a mark 1522 is displayed in the tear detection display field 1521 at the beginning of the job with the file name "Test 004," and a tear detection rate 1524 is displayed in the tear detection rate display field 1523. Here, "15/200" is displayed, indicating that 15 out of 200 images have been detected as torn.
By displaying the tear detection rate in addition to the output history display, the user can easily understand the tear detection rate, and can determine the priority of tear confirmation, and when the tear detection rate is high. It becomes possible to predict machine failures. The tear detection rate may be displayed as a percentage.

FIG. 5 is a diagram showing an example of a display screen 1600 when the waste detection rate is displayed as a percentage.
In 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 in 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 only the wear detection rate may be displayed. In this case, the occurrence of wear in the job can be understood by the display of the wear detection rate, and the wear detection rate corresponds to the identification information of the present invention.

Furthermore, in another embodiment, when displaying the output history, a job in which a torn image has been detected is displayed with information indicating whether or not a torn image has been confirmed.
In FIG. 6, on a display screen 1700, an output history list 1720 is displayed on the display screen of an output history tab 1711. The details button 1730 is an operation button for displaying detailed information of a job, and the error list display button 1740 is an operation button for extracting only jobs in which errors have been detected.
Furthermore, in the display scene 1700, a mark 1722 is displayed in the tear detection display field 1721 for the job with the file name "Test 002", and a check mark 1725 is displayed in the job with the file name "Test 006". The display in the tear detection display column indicates that tears have been detected in the jobs "Test 002" and "Test 006."

However, on this screen, the "*" mark added to the "Test 002" job indicates that the user has not confirmed the error, and the check mark added to the "Test 006" job is , indicates that a mistake has occurred and the user has confirmed the mistake. For example, the user can check whether the loss has been confirmed by pressing the confirmation button on the details display screen shown in FIG. will be changed to a check mark. Furthermore, when a details button is pressed on the list of the corresponding job, the job may be marked as confirmed.
By displaying that the error has been confirmed, the user can easily understand that the user has performed the confirmation work or action.

Furthermore, in the present invention, when displaying the output history, it is possible to add and display torn information to outputted job information that has been determined to be defective. The information regarding the content of the tear includes, for example, the page number where the tear was detected, the number of copies, and information regarding the position where the tear occurred. With this information, the position where the tear is detected can be easily grasped. The wear information can be displayed on the detail screen corresponding to the output job. The details screen corresponds to a detailed display of a job according to the present invention.

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

The job details screen 1800 displays torn information 1810 along with the basic settings, paper settings, and output settings of the job. The tear information displays the number of the page where the tear was detected (pages 1 and 5) and the position of the tear within the page (lower right of the image for page 1, upper right of the image for page 5). There is. Note that the tear information displayed as history information is not limited to the page number or the position of the tear, and the number of copies in which the tear was detected or the read image of the page in which the tear was detected may be displayed as a thumbnail.
In the output history information, by adding and displaying the torn information to the information of the job determined to be torn, the user can easily check the torn image.

Note that in the job details screen 1800, a tear confirmation button 1820 displayed at the lower right of the tear information 1810 is a button for indicating that the user has confirmed the tear. When the user presses the tear confirmation button 1820 after checking the tear image, a mark indicating that the tear has been confirmed is added on the output history display screen. For example, as in the example shown in FIG. 6, the "*" mark is changed to a check mark in a job for which the error confirmation button has been pressed. Note that a separate column for confirmation of failure may be provided to display whether confirmation has been made. The confirmation display allows the user to easily understand whether the torn image has been confirmed.
Note that on the job details screen for a job in which no image defects have occurred, no information is displayed in the tear information, and the tear confirmation button can be grayed out. Further, the error confirmation button may not be displayed.
After checking the torn information or pressing the torn confirmation button on the job details screen 1800, the user can return to the history display screen by pressing the close button 1821.

When the error list display button 1440, 1540, 1640 or the error list display button 1740 is pressed on the display screen 1400, 1500, 1600 or the display screen 1700, only jobs in which errors have occurred are extracted from the output history information. can be displayed as an output list.
The display screen of FIG. 8 can display only jobs in which torn has occurred as a torn output history list 1900. With this display, it is possible to easily understand which jobs have been torn. For example, when there are many jobs that have been output, it is possible to easily understand the state of occurrence of defects by displaying only the jobs in which defects have occurred.

Next, the procedure for adding and displaying the information on outputted jobs with loss information on the history display screen will be explained based on the flowchart of FIG. 9. The following procedure is executed under the control of the control unit of the image forming apparatus 1 or the external control unit 410 that manages the image forming apparatus 1.
First, an image printed on paper is read based on a job (step s1), and it is determined whether a defect (tear) has occurred in the image (step s2). As a method of determination, for example, a read image and print image data are compared, and if a predetermined difference occurs between the two, it can be determined that the image is torn.

When it is determined that the image is torn (step s2, Yes), torn information is added to the output job information (step s3). The torn information includes information indicating the presence or absence of torn, the page number in which the torn image is included, the position of the torn, data of the torn image, the torn detection rate, and the like. After step s3, job information is written in the output history (step s4), and the procedure ends. When displaying the output history, a mark may be added to indicate that the job is a job in which a tear has been detected, or a tear detection rate may be indicated. Alternatively, the torn position, number of pages, etc. may be displayed as torn information, and the torn confirmation button is displayed in the history, and when the user confirms the torn image and presses the torn confirmation button, the torn image is displayed on the history screen. may be changed, and the display content of the tear information on the history display screen is not particularly limited.
On the other hand, if it is determined that the read image is not torn (step s2, No), the process moves to step s4, job information is written in the output history, and the procedure ends.
According to the above-mentioned procedure, since the information on tore is added to the job information in the output history, it is possible to check the information on tore on the output history screen.

Furthermore, in the image forming apparatus 1, a waste list that extracts only jobs for which waste has been detected can be presented on the output history display screen.
3, when the waste list display button 1440 is pressed, only the job "test 002" for which waste has been detected is displayed. This allows the user to easily understand the waste jobs.

FIG. 10 is a flowchart showing the operating procedure when displaying the play list. The following procedure is performed by the control section of the image forming apparatus 1 or the external control section 400 of the external device 4.
When the failure 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 failure information (step s11). If there is torn information (step s11, Yes), only job information with torn information is extracted (step s12), and jobs with torn information are written in the torn list (step s13). Then end the procedure. On the other hand, if the job in the output history list does not include tear information (step s11, No), the procedure ends.
According to the above procedure, only jobs in which a tear has been detected can be extracted and presented as a tear list, and the user can easily understand which jobs include a tear and easily check for tears. .

Furthermore, in the image forming apparatus 1, when a tear is detected, the user may be prompted to display the output history or check the tear information. For example, if the display screen displays information using multiple tabs, and if one of the multiple tabs displays the history of an output job, when a defect is detected, , to clearly display the tab containing the job history. For example, a tab containing job history will be flashed.
For example, in the example of FIG. 4, the job list tab 1410 is blinked when a tear is detected. This allows the user to be prompted to confirm when a tear is detected.
In the above description, only the job list tab is blinked, but the present invention is not particularly limited to the area to be blinked, and for example, the output history tab may be blinked. The notification method does not have to be blinking; for example, the notification may be made by changing the color of the tab. The timing of blinking the tab is not particularly limited in the present invention, and the tab may be blinked at the time when a tear is detected, or after the output of the job in which the tear is detected is completed.

The procedure for blinking the tab when a tear is detected will be explained based on the flowchart of FIG. 11. The following procedure is executed by the control section of the image forming apparatus 1 or the external control section 400 of the external device 4.
The image printed on the paper is read (step s20), and it is determined whether the image is torn (defective) (step s21). If the image is torn (step s21, Yes), the job list tab is blinked (step s22), and the procedure ends. If the image is not torn (step s21, No), the procedure ends without blinking the job list tab.
According to the above procedure, when a tear is detected, it is possible to notify the user that a tear has occurred.

In the above embodiments, the history information is described as being displayed on the 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 may be transmitted to an external device. At the transmission destination, the history information can be displayed or printed. Transmission destinations include display devices such as external devices and terminals, and remote devices.

Although the present invention has been described above based on the above embodiments, the above description does not limit the scope of the present invention, and appropriate changes can be made without departing from the scope of the present invention.

1 Image forming apparatus 3 Network 4 External device 10 Apparatus body 11 Image forming section 13 Conveyance path 20 Relay device 30 Reading device 31 Image reading section 32 Image reading section 33 Conveyance 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 Torn detection display field 1422 Mark 1430 Details button 1440 Torn list display button 1500 Display screen 1511 Output history tab 1520 Output history list 1521 Torn detection display field 1522 Mark 1523 Torn detection rate field 1530 Details button 1540 Torn list display button 1600 Display screen 1611 Output history tab 1620 Output history list 1621 Torn detection display field 1622 Mark 1623 Torn detection rate field 1700 Display screen 1711 Output history tab 1720 Output history list 1721 Torn detection display field 1722 Mark 1723 Torn detection rate field 1725 Check mark 1800 Job details screen 1900 Display screen 1920 Torn output history list

Claims (13)

an image forming section that forms an image on a transfer medium;
an image reading unit that reads the image formed on the transfer medium;
a control unit that acquires a reading result obtained by reading an image on a transfer medium by the image reading unit , and determines whether the image is defective based on the reading result;
A display section for displaying information;
The control unit includes:
a first display screen that displays jobs that have been determined to be defective in a list format, and also displays jobs that have been determined to be defective so that they can be identified;
A second display screen that displays the position of the defect within the page on the page is displayed as details of the defect information of the job determined to be defective, and the first display screen and the second display screen display the position of the defect on the page. An image forming apparatus characterized by not displaying images simultaneously with a display screen . 2. The image forming apparatus according to claim 1 , wherein the control unit adds identification information to a job determined to be defective and displays the determined job. 3. The image forming apparatus according to claim 2 , wherein the identification information includes one or more of a mark indicating a defect, a color display, and a background color. The image forming apparatus according to any one of claims 1 to 3 , characterized in that the control unit is capable of adding information on the occurrence rate of defects to jobs judged to be defective when displaying the judged jobs. The image forming apparatus according to any one of claims 1 to 4 , wherein the control unit adds tore information to the job determined to be defective so that the job can be displayed . 6. The image forming apparatus according to claim 5 , wherein the tear information includes one or more of a page number where a defect occurs, a number of copies, and a defective image. 7. The image forming apparatus according to claim 5 , wherein the tear information is displayed as detailed defect information of a job determined to be defective. The image forming apparatus according to any one of claims 1 to 7 , wherein the control unit is capable of displaying whether or not a defective job has been confirmed in displaying the determined job. The control unit is capable of displaying information on the display unit using a plurality of tabs,
When displaying the determined job on one tab, when the image is determined to be defective, display the tab displaying the determined job so that it can be distinguished from other tabs. The image forming apparatus according to any one of claims 1 to 8 , characterized in that: 10. The image forming apparatus according to claim 9 , wherein the control unit, when displaying the tab in an identifiable manner, displays the tab in a blinking manner. The image forming apparatus according to any one of claims 1 to 10 , wherein the control unit is capable of displaying only jobs determined to be defective in displaying the determined jobs. a control unit that obtains a reading result of reading an image on a transfer medium by an image reading unit and determines whether the image is defective based on the reading result;
The control unit includes:
a first display screen that displays jobs that have been determined to be defective in a list format, and also displays jobs that have been determined to be defective so that they can be identified;
A second display screen that displays the position of the defect within the page on the page is displayed as details of the defect information of the job determined to be defective on the display section, and the first display screen and the second display screen are displayed. A management device characterized in that it is not displayed at the same time as the screen . A program executed by a control unit,
acquiring a reading result of reading the image on the transfer medium with an image reading unit ;
determining whether the image is defective based on the reading result;
a first display screen that displays jobs that have been determined to be defective in a list format, and also displays jobs that have been determined to be defective so that they can be identified;
A second display screen that displays the position of the defect within the page on the page is displayed as details of the defect information of the job determined to be defective on the display section, and the first display screen and the second display screen are displayed. A program that causes the control unit to execute steps that are not displayed simultaneously with a screen .

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