Error resolution support device, method and program

Abstract

To provide an error resolution support device, a method and a program which can select a more appropriate error resolution method.SOLUTION: An error resolution support device comprises: a storage unit 40 which stores error information, a factor candidate which is an event generated before an error occurs and becomes a candidate of a factor of the error, and an error resolution method corresponding to the factor candidate in association with each other; and a control unit 30 which identifies the error resolution method corresponding to the same factor candidate as the event, on the basis of the event generated before a predetermined error occurs, when the predetermined error occurs, and displays the identified error resolution method.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an error removal assistance device, method, and program for supporting error removal by displaying a method for removing an error. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there has been proposed a device that, when an error occurs in a printing device or the like, displays a method for clearing the error to a user, thereby enabling the user to clear the error efficiently.

[0003] For example, Patent Document 1 proposes enhancing the error recovery methods by making it possible to change or add to the preregistered error recovery methods. Patent Document 1 also proposes giving priority to the selection of error recovery methods that are used frequently. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 10-154086 Summary of the Invention [Problem to be solved by the invention]

[0005] However, as described in Patent Document 1, even if changes or additions are made to a pre-registered error removal method, or a frequently used error removal method is selected, the error removal method may not necessarily be the optimal method.

[0006] For example, in a printing device that stores multiple print jobs as a print queue in a storage medium such as a hard disk, when a hard disk capacity shortage error occurs, a cancellation method is usually executed in which the completed print jobs that have completed printing processing are deleted to increase the free space on the hard disk. In other words, this is the error cancellation method that is frequently used in Patent Document 1.

[0007] However, even if the completed print jobs are deleted as described above, there are cases where the hard disk capacity is insufficient and errors occur frequently. In such cases, it is assumed that there are print jobs that cannot be deleted, and a release method for initializing the hard disk is performed. In other words, the error release method in Patent Document 1 may be changed.

[0008] However, even if completed print jobs are deleted, if hard disk insufficient capacity errors occur frequently, there are not necessarily print jobs that cannot be deleted. For example, if a network link down occurs between the printing device and the computer that sends print jobs, even if the hard disk is initialized, abnormal print jobs will accumulate on the hard disk, and hard disk insufficient capacity errors will occur frequently again.

[0009] Moreover, it would be extremely time-consuming and laborious to initialize the hard disk every time an error about insufficient hard disk space occurs.

[0010] When a network link down occurs as described above, it would be possible to replace the LAN cable or HUB, but since the user is not aware that a network link down has occurred, he or she is unable to carry out such a method of release.

[0011] In view of the above circumstances, an object of the present invention is to provide an error removal support device, method, and program that enable selection of a more appropriate error removal method. [Means for solving the problem]

[0012] The error resolution support device of the present invention includes a resolution method memory unit that stores error information, candidate cause candidates which are events that occur before the error occurs and are candidates for the cause of the error, and a method of resolving the error corresponding to the candidate cause, in association with each other, and a control unit that, when a specific error occurs, identifies a method of resolving the error corresponding to the same candidate cause as the event based on an event that occurred before the specific error occurred, and displays the identified method of resolving the error. Effect of the Invention

[0013] According to the error resolution support device of the present invention, error information, events that occur before the error occurs which are potential causes of the error, and error resolution methods corresponding to the candidate causes are associated and stored in advance, and when a specific error occurs, a method for resolving the error corresponding to the same candidate cause as the event that occurred before the specific error occurs is identified based on the event that occurred before the specific error occurred, and the identified method for resolving the error is displayed, allowing the user to select a more appropriate method for resolving the error. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a schematic diagram showing a configuration of a printing device using an embodiment of an error resolution support device of the present invention; [Diagram 2] FIG. 13 is a diagram showing an example of a release method presentation table; [Diagram 3] FIG. 13 is a diagram showing an example of an error detection screen. [Figure 4] A diagram showing an example of the last three events stored from the time the "hard disk space shortage" error occurred [Diagram 5] FIG. 13 is a diagram showing an example of a release procedure selection screen; [Figure 6] A diagram showing an example of a method for clearing an error corresponding to candidate cause 1. [Figure 7] A diagram showing an example of a method for clearing an error corresponding to candidate cause 2. [Figure 8] A diagram showing an example of a method for clearing an error corresponding to candidate cause 3. [Figure 9]Figure showing an example of the display when "Replace LAN cable / HUB" and "Delete completed jobs" are executed [Figure 10] FIG. 13 is a diagram showing an example of an error detection screen. [Figure 11] A diagram showing an example of the last three events stored from the time the "Auto tray selection, no paper in the tray" error occurred [Figure 12] FIG. 13 is a diagram showing an example of a release procedure selection screen; [Figure 13] A diagram showing an example of a method for clearing an error corresponding to candidate cause 1. [Figure 14] A diagram showing an example of a method for clearing an error corresponding to candidate cause 2. [Figure 15] A diagram showing an example of a method for clearing an error corresponding to candidate cause 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] A printing device using an embodiment of the error resolution support device of the present invention will be described in detail below with reference to the drawings. The printing device of this embodiment is characterized by the display of an error resolution method when an error occurs, but first, the configuration of the printing device as a whole will be described. Figure 1 is a block diagram showing the schematic configuration of a printing device 1 of this embodiment.

[0016] 1, the printing device 1 of this embodiment includes a print processing unit 10, a paper feed unit 20, a control unit 30, a storage unit 40, and an operation unit 50. In this embodiment, the storage unit 40 corresponds to the error release method storage unit of the present invention.

[0017] The print processing unit 10 performs a print process on the print paper fed from the paper feed unit 20. The print processing unit 10 is equipped with a plurality of inkjet heads that eject inks of, for example, C (cyan), M (magenta), Y (yellow), and K (black), and performs the print process by an inkjet method. However, the printing method in the print processing unit 10 is not limited to the inkjet method, and other printing methods such as stencil printing, laser printing, and thermal printing may also be adopted.

[0018] The paper feed section 20 has a plurality of print papers stacked thereon, and supplies the stacked print papers to the print processing section 10. The paper feed section 20 of this embodiment has three trays: a first tray 21, a second tray 22, and a third tray 23. Then, a print paper is picked up from each tray by a pickup roller (not shown) provided on each tray, and supplied to the print processing section 10.

[0019] The paper feed unit 20 selects one of the first tray 21, the second tray 22, and the third tray 23 in response to a control signal from the control unit 30, and supplies print paper from the selected tray to the print processing unit 10. The selection of the tray by the control unit 30 will be described in detail later.

[0020] The control unit 30 controls the entire printing device. The control unit 30 of this embodiment includes a print job receiving unit 31, a print data generating unit 32, an error detecting unit 33, and a display control unit .

[0021] The print job receiving unit 31 receives a print job output from a computer (not shown) connected via a network to the printing device 1. The print job received by the print job receiving unit 31 is stored in the storage unit 40 as a print queue.

[0022] The print data generating unit 32 generates print data for controlling the print processing in the print processing unit 10 based on the print job received by the print job receiving unit 31 , and outputs the print data to the print processing unit 10 .

[0023] The error detection unit 33 detects various errors that occur in the printing device 1. Examples of errors that can be detected include a hard disk free space shortage error in the storage unit 40, a no-paper error in the paper feed unit 20, a print paper jam error in the paper feed unit 20 and print processing unit 10, a link down in the network between the printing device 1 and the computer, and reception abnormalities in the print job receiving unit 31. The printing device 1 is provided with a sensor (not shown) for detecting the above-mentioned errors. Furthermore, errors are not limited to the above examples, and known errors can be detected using known methods (means).

[0024] The display control unit 34 causes various pieces of information to be displayed on the operation unit 50. For example, the display control unit 34 causes the operation unit 50 to display an operation screen for receiving input of print condition settings and a print start instruction. Furthermore, when an error is detected by the error detection unit 33, the display control unit 34 of this embodiment causes the operation unit 50 to display information about the error and also displays a method for solving the error on the operation unit 50. The display of the method for solving the error will be described in detail later.

[0025] Furthermore, the control unit 30 outputs a control signal to the paper feed unit 20 based on tray selection information set in the print job by the computer, and causes the paper feed unit 20 to feed printing paper from the tray selected by the user.

[0026] The tray selection information includes information for selecting one of the first tray 21 to the third tray 23 of the paper feeder 20 and information for automatic tray selection. When the tray selection information set in the print job is information for automatic tray selection, the control unit 30 automatically selects one of the first tray 21 to the third tray 23 that matches the orientation and size of the document data included in the print job. Note that the first tray 21 to the third tray 23 are provided with sensors (not shown) that detect the size and orientation of the print paper loaded thereon, and the control unit 30 recognizes the size and orientation of the print paper loaded in each tray based on the detection signals of these sensors.

[0027] Furthermore, when the print job contains information about auto tray selection, the control unit 30 can set a tray to be the target of auto tray selection. The operation unit 50 accepts a setting input of "target for auto tray selection" or "not target for auto tray selection" for each of the first tray 21 to the third tray 23, and the control unit 30 holds the setting input information. When the print job contains information about auto tray selection, the control unit 30 selects a tray that matches the orientation and size of the document data from among the trays for which "target for auto tray selection" has been set.

[0028] In this embodiment, if the print job includes information for automatic tray selection, and there is no tray that matches the orientation and size of the document data, the error detection unit 33 detects a no-paper error.

[0029] Also, when the print job includes information about auto tray selection, even if there is a tray that matches the orientation and size of the document data, if the tray is set as "not for auto tray selection," that tray will not be selected. If there is no tray that matches the orientation and size of the document data among the trays set as "for auto tray selection," the error detection unit 33 detects an out-of-paper error.

[0030] In addition, if the print job includes tray selection information, and the size and orientation of the print paper loaded in the selected tray does not match the orientation and size of the original data, or even if the selected tray is "not subject to auto tray selection," that tray will be selected and no error will occur.

[0031] The control unit 30 includes a CPU (Central Processing Unit), a semiconductor memory, a hard disk, etc. The control unit 30 executes a program stored in advance in a storage medium such as the semiconductor memory or the hard disk, and operates an electric circuit, thereby controlling the operation of each part of the printing device 1. The control unit 30 also executes an error resolution support program stored in advance in the storage medium, and operates an electric circuit, thereby performing control such as displaying a method for clearing an error, which will be described later.

[0032] The storage unit 40 includes a hard disk or the like, and stores the print jobs sequentially received by the print job receiving unit 31 as a print queue, as described above.

[0033] The storage unit 40 also stores a method for clearing an error detected by the error detection unit 33. Specifically, the storage unit 40 stores a clearing method presentation table that associates information about an error with candidate factors that are events that may occur before the error occurs and are candidates for the cause of the error, and a method for clearing the error that corresponds to the candidate factors.

[0034] Here, in this embodiment, an "event" includes an operation executed in the printing device 1, a change in the state of the printing device 1, an operation by a user in the printing device 1, and an error detection in the printing device 1. In this embodiment, when an "event" occurs, the control unit 30 acquires information about the event, and the control unit 30 stores the event that occurred in chronological order in the memory unit 40.

[0035] Fig. 2 is a diagram showing an example of a release method presentation table. In the release method presentation table shown in Fig. 2, an error number and an error name are stored as error information. In addition, in the release method presentation table, for example, for an "auto tray selected, no paper error", multiple cause candidates and error release methods corresponding to the multiple cause candidates are stored in association with each other. Also, for an "insufficient free space on HDD (hard disk)" error, multiple cause candidates and error release methods corresponding to the multiple cause candidates are stored in association with each other.

[0036] The table of methods to resolve an error stores a combination of possible causes of the error that occurred before the error occurred and the procedure to resolve the error each time the error is resolved. There is not always just one procedure to resolve the error, and multiple procedures may be stored, such as "insufficient free space on the HDD" and "detection of a network link down."

[0037] Also, although only one candidate factor is shown as an example in Fig. 2, multiple combinations of candidate factors may be used. For example, if multiple release procedures are stored in the table for the previous candidate factor, it is possible to save release procedures for more conditions by combining not only the previous candidate factor but also the second or third most recent candidate factor as candidate factors and saving the release procedures for those combinations.

[0038] When a specific error occurs and is detected by the error detection unit 33, the display control unit 34 identifies a method for resolving the error corresponding to the same candidate cause as the event that occurred before the specific error occurred, based on the event that occurred before the specific error occurred, and causes the operation unit 50 to display the identified method for resolving the error.

[0039] Specifically, when an error is detected by the error detection unit 33, the display control unit 34 refers to the event information stored in chronological order in the storage unit 40, and identifies the events that occurred before the occurrence of the specified error. For example, the display control unit 34 of this embodiment identifies the first three events stored going back from the time the specified error occurred.

[0040] Then, the display control unit 34 refers to the release method presentation table shown in FIG. 2 based on the events that have occurred up to the third most recent event from the time the error occurred, identifies a release method for the error that corresponds to the same candidate cause as the events that have occurred up to the third most recent event, and causes the operation unit 50 to display the identified release method for the error.

[0041] The operation unit 50 includes a touch panel having a liquid crystal panel, and displays various operation screens as described above and accepts various setting inputs by the user. In addition, when a certain error occurs, the operation unit 50 displays a method for clearing the error.

[0042] Next, a more detailed explanation will be given of a display example of a method for clearing an error in the printing device 1 of this embodiment. Here, an example of a display example of a method for clearing an error when a "hard disk full" error is detected will be explained.

[0043] When the error detection unit 33 detects "insufficient free space on hard disk", the display control unit 34 displays an error detection screen as shown in FIG. 3 on the operation unit 50. Then, the display control unit 34 identifies the events stored up to the third event going back from the time when the error "insufficient free space on hard disk" occurred as described above. FIG. 4 is a diagram showing an example of the events stored up to the third event going back from the time when the error "insufficient free space on hard disk" occurred, in which "start of job reception" (No. 1) is stored as the third event in the past, "detection of network link down" (No. 2) is the second event in the past, and "abnormal end of job reception" (No. 3) is stored as the first event in the past (immediately before) in the storage unit 40 and identified by the display control unit 34. Note that FIG. 4 also shows the events stored in the storage unit 40 when the user performs "replacement of LAN cable / HUB" (No. 5) and "deletion of completed job" (No. 6) after the error occurs and the error is released.

[0044] Then, when the "Release Procedure" button on the error detection screen shown in Fig. 3 is selected, a release procedure selection screen shown in Fig. 5 is displayed on the operation unit 50. Specifically, the display control unit 34 displays "Delete completed jobs" as a "recommended" error removal method on the release procedure selection screen shown in Fig. 5, and also displays cause candidate buttons B1 to B3 in which the contents of the above-mentioned first three stored events are displayed as cause candidates.

[0045] The "recommended" error resolution method may be an error resolution method registered in advance by an administrator, or, for example, error resolution methods used when the same error has occurred in the past may be stored and the most frequently used error resolution method may be displayed.

[0046] Then, when the cause candidate button B1 in which the third past event is displayed as cause candidate 1 is selected, for example, the display control unit 34 refers to the release method presentation table shown in Fig. 2 and identifies "delete completed job" as the error release method stored in association with "insufficient free space on hard disk" and "start receiving job". Then, as shown in Fig. 6, the display control unit 34 displays the cause candidate button B1 in a color different from the "recommended" button and the cause candidate buttons B2 and B3, and displays "delete completed job" identified by referring to the release method presentation table as described above.

[0047] Furthermore, when the cause candidate button B2 in which the second past event is displayed as cause candidate 2 is selected, for example, the display control unit 34 refers to the removal method presentation table shown in Fig. 2 and identifies "LAN cable / HUB replacement" and "completed job deletion" as error removal methods stored in association with "insufficient free space on hard disk" and "network link down detection". Then, as shown in Fig. 7, the display control unit 34 displays the cause candidate button B2 in a color different from the "recommended" button and the cause candidate buttons B1 and B3, and displays "LAN cable / HUB replacement" and "completed job deletion" identified by referring to the removal method presentation table as described above.

[0048] Furthermore, when the cause candidate button B3 in which the first past (most recent) event is displayed as cause candidate 3 is selected, for example, the display control unit 34 refers to the release method presentation table shown in Fig. 2 and identifies "HDD (hard disk) initialization" as the error release method stored in association with "insufficient free space on hard disk" and "abnormal termination of job reception". Then, as shown in Fig. 8, the display control unit 34 displays the cause candidate button B3 in a color different from the "recommended" button and the cause candidate buttons B1 and B2, and displays "HDD (hard disk) initialization" identified by referring to the release method presentation table as described above.

[0049] By displaying the possible cause buttons B1 to B3 as described above, the user can recognize that "network link down detected" occurred as an event prior to the occurrence of the error, and can select "replace LAN cable / HUB" and "delete completed jobs" as more appropriate methods for resolving the error.

[0050] Then, when the user replaces the LAN cable or HUB by referring to the error clearing method shown in Fig. 7, the "Replace LAN cable / HUB" button is selected. When the "Replace LAN cable / HUB" button is selected, the display control unit 34 grays out the "Replace LAN cable / HUB" button that has been executed, as shown in Fig. 9A, and displays it differently from "Delete completed job". By displaying it in this way, it is possible to immediately recognize how far the error clearing procedure has been executed.

[0051] Next, when the user deletes a completed job by referring to the error clearing method shown in Fig. 7, the "Delete Completed Job" button is selected. When the "Delete Completed Job" button is selected, the display control unit 34 grays out the executed "Replace LAN Cable / HUB" and "Delete Completed Job" buttons as shown in Fig. 9B. By displaying in this manner, it is possible to immediately recognize that all error clearing procedures have been completed.

[0052] Next, a display example of a method for clearing an error when an "auto tray selection, no paper" error is detected will be described.

[0053] First, before describing specific display examples, an example of a method for clearing an error when a "no paper in auto tray selection error" is detected will be described. When a "no paper in auto tray selection error" is detected, the error can be cleared by setting paper that matches the size and orientation of the document data of the print job in any one of the first tray 21, second tray 22, and third tray 23, for example, and setting that tray as the target for auto tray selection. Also, if the user knows that paper that matches the size and orientation of the document data of the print job is set in the second tray 22, the automatic tray selection can be canceled and the paper can be changed to the second tray 22.

[0054] Furthermore, if auto tray selection is set in a print job, but the user recognizes that there is an error in the paper size specification of the print job, one method for clearing the error is to delete the print job for the time being.

[0055] As described above, there are multiple methods for clearing the error when a "no paper error when selecting auto tray" is detected, but in this embodiment, a display is provided to allow the user to select the most suitable method for clearing the error. A specific description will be given below. Here, a case will be described in which a "no paper error when selecting auto tray" is detected when paper that matches the size and orientation of the document data of the print job is set in the second tray 22 and the second tray 22 is set as not eligible for auto tray selection.

[0056] When the error detection unit 33 detects the "no paper when auto tray is selected" error, the display control unit 34 causes the operation unit 50 to display an error detection screen as shown in Fig. 10. Then, the display control unit 34 identifies the first three events stored going back from the time when the error "no paper when auto tray is selected" occurred as described above.

[0057] Fig. 11 is a diagram showing an example of the three most recent events stored from the time the error "no paper when selecting auto tray" occurred, in which "paper set in second tray" is stored as the third most recent event, "second tray not subject to auto tray selection" as the second most recent event, and "job received" as the most recent (immediately preceding) event, and are identified by the display control unit 34. Fig. 11 also shows events stored in the storage unit 40 when the user sets "second tray subject to auto tray selection" after the error occurs and the error is cleared.

[0058] Then, when the "Release Procedure" button on the error detection screen shown in Fig. 10 is selected, a release procedure selection screen shown in Fig. 12 is displayed on the operation unit 50. Specifically, the display control unit 34 displays "2nd Tray Auto Tray Selection Target" as the "recommended" error release method on the release procedure selection screen shown in Fig. 12, and also displays cause candidate buttons B4 to B6 in which the contents of the above-mentioned first three stored events are displayed as cause candidates.

[0059] As mentioned above, the "recommended" error resolution method may be an error resolution method registered in advance by the administrator, or, for example, error resolution methods used when the same error has occurred in the past may be stored and the most frequently used error resolution method may be displayed.

[0060] Then, when the cause candidate button B4, which displays the third past event as cause candidate 1, is selected, the display control unit 34 refers to the release method presentation table shown in Fig. 2 and identifies "tray change: select second tray" as the error release method stored in association with "no paper error when auto tray is selected" and "set paper in second tray". Then, as shown in Fig. 13, the display control unit 34 displays the cause candidate button B4 in a color different from the "recommended" button and the cause candidate buttons B5 and B6, and displays "tray change: select second tray" identified by referring to the release method presentation table as described above.

[0061] When the user changes the tray, the "Close" button shown in Fig. 13 is selected, the screen shown in Fig. 13 is closed, and the error detection screen shown in Fig. 10 is displayed. Then, the user selects the "Change Tray" button on the error detection screen, and, for example, the tray designation is changed from "Auto Tray Selection" to "Second Tray." This makes it possible to feed paper from the second tray 22 and print even if the setting for the second tray 22 remains "Not for Auto Tray Selection."

[0062] Also, when the cause candidate button B5, which displays the second past event as cause candidate 2, is selected, the display control unit 34 refers to the release method presentation table shown in FIG. 2 and specifies "2nd tray auto tray selection target" as the error release method stored in association with "no paper error when auto tray is selected" and "2nd tray not auto tray selection target". Then, as shown in FIG. 14, the display control unit 34 displays the cause candidate button B5 in a color different from the "recommended" button and the cause candidate buttons B4 and B6, and displays "2nd tray auto tray selection target" specified by referring to the release method presentation table as described above. As a result, the setting of the 2nd tray 22 changes to "auto tray selection target", and the print job with auto tray selection can be printed by feeding paper from the 2nd tray 22.

[0063] Furthermore, when the cause candidate button B6, which displays the first past (most recent) event as cause candidate 3, is selected, the display control unit 34 refers to the release method presentation table shown in Fig. 2 and identifies "job deletion" as the error release method stored in association with "no paper error when auto tray is selected" and "job reception". Then, as shown in Fig. 15, the display control unit 34 displays the cause candidate button B6 in a color different from the "recommended" button and the cause candidate buttons B4 and B5, and displays "job deletion" identified by referring to the release method presentation table as described above. If "job deletion" is executed, printing is canceled.

[0064] By displaying the possible cause buttons B4 to B6 as described above, the user can recognize that "2nd tray not eligible for auto tray selection" occurred as an event before the error occurred, and can select the "2nd tray eligible for auto tray selection" setting as a more appropriate method of resolving the error.

[0065] According to the printing device 1 of the above embodiment, when an error occurs, a method for resolving the error that corresponds to the same potential cause as the event that occurred before the error occurred is identified based on the event that occurred before the error occurred, and the identified method for resolving the error is displayed. Therefore, the user can select a method for resolving the error related to the event before the error occurred, and can select a more appropriate method for resolving the error.

[0066] Furthermore, in the printing device 1 of the above embodiment, multiple possible causes and methods for resolving an error are displayed for information about a single error, so that the most appropriate method for resolving the error can be selected from among the multiple methods for resolving the error.

[0067] Furthermore, in the printing device 1 of the above embodiment, if error removal methods corresponding to at least three candidate cause(s) are displayed, it becomes easier for the user to find a more appropriate method for removing the error.

[0068] In addition, in the above embodiment, the user himself / herself clears the error, but the printing device 1 may automatically perform the error clearing operation, including a test using a sensor, etc. In that case, for example, a button for starting the error clearing operation corresponding to the candidate cause may be displayed on the operation unit 50 along with the candidate cause, and the error clearing operation may be started when the user selects that button.

[0069] Further, in the above embodiment, the error removal support device of the present invention is applied to a printing device, but the present invention is not limited to being applied to a printing device, and may be applied to other devices.

[0070] The present invention is not limited to the above-described embodiment, and the components can be modified and embodied in the implementation stage without departing from the gist of the invention. In addition, various inventions can be formed by appropriately combining the multiple components disclosed in the above-described embodiment. For example, all the components shown in the embodiment can be appropriately combined. Of course, various modifications and applications are possible without departing from the spirit of the invention.

[0071] The present invention further discloses the following supplementary notes. (Appendix 1)

[0072] The error resolution support device of the present invention includes a resolution method memory unit that stores error information, candidate cause candidates which are events that occur before the error occurs and are candidates for the cause of the error, and a method of resolving the error corresponding to the candidate cause, in association with each other, and a control unit that, when a specific error occurs, identifies a method of resolving the error corresponding to the same candidate cause as the event based on an event that occurred before the specific error occurred, and displays the identified method of resolving the error. (Appendix 2)

[0073] In the error removal support device described in Appendix 1, the removal method memory unit can store multiple candidate causes and error removal methods for information on one error in association with each other, and the control unit can identify multiple error removal methods that correspond to the same candidate causes as multiple events that occurred before a specific error occurred, based on the multiple events, and display the identified error removal methods. (Appendix 3)

[0074] In the error clearing support device described in Supplementary Note 2, the control unit can display error clearing methods corresponding to at least three candidate causes. (Appendix 4)

[0075] The error resolution support method of the present invention pre-stores error information, candidate factors which occur before the error occurs and are potential causes of the error, in association with each other, and a method for resolving the error corresponding to the candidate factors.When a specific error occurs, a method for resolving the error corresponding to the same candidate factor as the event which occurred before the specific error occurs is identified based on the event which occurred before the specific error occurred, and the identified method for resolving the error is displayed. (Appendix 5)

[0076] The error resolution support program of the present invention causes a computer to execute the steps of: pre-storing in association with error information, candidate cause factors which are events which occur before the error occurs and which are candidates for the cause of the error, and a method of resolving the error corresponding to the candidate cause factors; when a specific error occurs, identifying a method of resolving the error corresponding to the same candidate cause factor as the event which occurred before the specific error occurred; and displaying the identified method of resolving the error. [Explanation of symbols]

[0077] 1 Printing device 10 Print processing unit 20 Paper feed section 30 Control section 31 Print job receiving unit 32 Print data generation unit 33 Error detection section 34 Display control section 40 Storage section 50 Control section B1~B6 Factor candidate buttons

Claims

1. a release method storage unit that stores information about an error, candidate factors of the error that are events occurring before the error occurs, and a release method for the error corresponding to the candidate factors, in association with each other; An error removal support device comprising: a control unit that, when a specified error occurs, identifies a method of removing the error corresponding to the same candidate cause as the specified error based on an event that occurred before the specified error occurred, and displays the identified method of removing the error.

2. the removal method storage unit stores a plurality of the candidate causes and a removal method for the error in association with each other for information on one of the errors; The error removal support device according to claim 1, wherein the control unit, based on a plurality of events that occurred before the occurrence of the specified error, identifies a plurality of methods for removing the error that correspond to the same candidate cause as the plurality of events, and displays the identified methods for removing the error.

3. 3. The error removal support device according to claim 2, wherein the control unit displays error removal methods corresponding to at least three of the error cause candidates.

4. storing in advance information about an error, candidate factors of the error that are events occurring before the error occurs, and a method of removing the error corresponding to the candidate factors, in association with each other; When a predetermined error occurs, a method of removing the error corresponding to the same candidate cause as the event is identified based on an event that occurred before the occurrence of the predetermined error; An error resolution support method for displaying a method for resolving the identified error.

5. a step of previously storing information about an error, candidate factors of the error which are events occurring before the error occurs, and a method of removing the error corresponding to the candidate factors, in association with each other; When a predetermined error occurs, a method of removing the error corresponding to the same candidate cause as the event is identified based on an event that occurred before the occurrence of the predetermined error; and a step of displaying a method for solving the identified error.

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