JPH0652018A - Error display system - Google Patents

Abstract

PURPOSE:To execute an error display which is easily understandable and also easily operable by an operator. CONSTITUTION:Display priority is put in advance to generated errors, respectively, and in the case plural errors are generated simultaneously and detected by a sensor 12, a controller 14 informs a display control part 16 of the error of the highest priority and display an error message corresponding to the error on a display device 15a. Also, at the time of displaying the error message, if other error is generated, the display of 'other error' is executed in the vicinity of a key 15a-4, and when the error displayed at present can be released, 'error release' is displayed in the vicinity of a key 15a-8 and in the case other coping method is present 'coping method' is displayed in the vicinity of a key 15a-2, and in the case detailed information relating to the error is present, the display of 'detailed information' is executed in the vicinity of a key 15a-3 and when the coping method or the detailed information is being displayed, in the case it can be returned to the previous screen, the display of 'previous screen' is executed in the vicinity of a key 15a-6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an error display system, and more particularly to an error display system for displaying an error message on a display screen in an apparatus having an operator panel with a display.

[0002]

2. Description of the Related Art An operator panel is provided in a printer device, a facsimile device, etc., so that necessary information can be appropriately displayed on a display screen of the operator panel and desired control can be performed by operating a predetermined key. It has become. FIG. 22 is an explanatory view of a conventional printer device. 1 is a printer mechanical / print head unit, 2 is a mechanical unit error (paper jam, print head pin breakage, ribbon feed failure, etc.). A sensor, 3a is a mechanical control unit, 3b is a head driver, 4 is a controller (printer controller) for controlling the entire printer, and 5 is an operator panel. On the operator panel 5, 5a
Is an LCD display unit having a 16-digit two-stage display area, 5b,
5c is a line feed / page break function key, 5d is a start / stop key, 5e is an LED for displaying a power-on state / error occurrence state, etc., 5f and 5g are keys (fine adjustment key) for sheet fine adjustment feed, When displaying an error, it has a function of sequentially scrolling error messages. 5h
Is a slide switch for selecting test / setting / normal operation, and 5i is an error cancel key for canceling an error. still,
The characters in the frame of the operator panel 5 are marked on the panel cover, and the function of each key is fixed.

When the controller 4 receives data and commands from the host device, it analyzes them and, if they are character code data, converts the character codes into bit image data and develops them in a first page buffer (not shown). To do. Then, the bit image data of N lines (corresponding to one character line) from the first page buffer is transferred to the line buffer (not shown), and the character code data of the next page is converted into bit image data. To the second page buffer. The bit image data transferred from the first page buffer to the line buffer are sequentially read out N by N and input to the head driver 3b. The head driver 3b drives N print pins based on the bit image and prints. The head is moved horizontally to print one line on the recording paper. Thereafter, the paper for one line is fed, the bit image data for one line is transferred to the line buffer for printing, and the above operation is repeated to print for one page.

When the printing of one page is completed, the bit image data of the next page is read from the second page buffer every N lines and transferred to the line buffer, and the character code of the next page is written in the first page buffer. Bit image data is expanded, and thereafter, printing is similarly performed by alternately using the first and second page buffers. If the controller 4 receives a line feed command or a page break command from the host device,
Alternatively, when a line feed, page break, fine adjustment feed, or the like is instructed from the operator panel, a predetermined mechanical control command is sent to the mechanical control unit 3a, and the mechanical control unit 3a is caused to control the line feed mechanism and page feed mechanism. Causes line breaks, page breaks, and fine feed of paper. Further, the controller 4 monitors the status code (error code) sent from the mechanical control unit 3a and the head driver 3b, interprets the error code sent when an error occurs, and displays an error message on the LCD display unit 5a. . Since the LCD display section 5a has only a 16-digit two-stage display area, it cannot display all error messages, and scrolls the error messages (error details, error countermeasures, etc.) using the fine adjustment keys 5f and 5g.
If two or more errors occur at the same time, the fine adjustment keys 5f and 5g are used to scroll to display an error message regarding the next error. Furthermore,
After removing the cause of the error, the error cancel key 5i is pressed to cancel the error. Depending on the error, there is a CE (customer engineer) call error that cannot be repaired by the user, and the error cannot be canceled even if the error cancel key is pressed.

[0005]

In the conventional apparatus, the display screen of the display portion 5a provided on the operator panel 5 is small, and the function of each key is marked on the panel cover and fixed. Therefore, there is a problem that it is difficult for the operator to understand and the operation is difficult. In particular, when an error occurs, there are the following problems. That is, (a) it is not easy to recognize whether multiple errors occurred at the same time. This is because there is no display indicating that a plurality of errors have occurred even though only one type of error message is displayed on one screen.
It should be noted that in the conventional device, by pressing the fine adjustment keys 5f and 5g, the message is switched to the next error message, and it can be seen that a plurality of errors have occurred for the first time. (b) When a plurality of errors occur at the same time, the error code is sent from the mechanical control unit 3a and the head driver 3b, but the error display is performed in the order of sending. Therefore, if the fine adjustment key is not pressed, an error with a high priority may be missed. In addition, it is not possible to immediately display a high-priority error that occurred later during error display. (c) When multiple errors occur at the same time, the message of each error is scrolled continuously, so the screen switched by the fine adjustment key is the detailed information of the previous error message or the error message of the next error. There is a problem that is difficult to identify. (d) Since the screen is small, it is not possible to display the error coping method, and the operator has to find the coping method by referring to the maintenance manual from the error message.
There is a problem that errors cannot be dealt with easily and quickly. (e) It is not possible to recognize whether the error indicated by the error can be canceled or not, and the only option is to press the error cancel key.

In view of the above, it is an object of the present invention to provide an error display method that is easy for an operator to understand and easy to operate. Another object of the present invention is to provide an error display method capable of displaying errors in order of priority even if a plurality of errors occur simultaneously. Another object of the present invention is to provide an error display method capable of easily recognizing that another error has occurred even if a plurality of errors occur at the same time, and that a key requesting another error display can be easily recognized. . Another object of the present invention is to provide an error display method capable of easily recognizing whether an error displayed in an error message is an error that can be canceled and an error cancellation key. Another object of the present invention is to easily recognize the presence or absence of a coping method for an error and a display request key of the coping method,
Moreover, it is to provide an error display method capable of displaying error coping methods in order of priority. Another object of the present invention is to
An object of the present invention is to provide an error display method capable of easily recognizing the presence or absence of detailed information regarding an error and a display request key for displaying the detailed information. Another object of the present invention is to provide a coping method, an error display method capable of easily recognizing whether a previous screen of detailed information can be returned, and a key for returning to the previous screen.

[0007]

FIG. 1 is a diagram for explaining the principle of the present invention. Reference numeral 11 denotes a printer mechanical / print head portion, and 12
Is a mechanical error (paper jam, print head pin breakage,
Ribbon feeding failure, etc.), 13a is a mechanical control unit, 13b is a head driver, 14 is a controller for controlling the entire printer, 15 is an operator panel,
16 is a display control unit. On the operator panel 15,
A large-screen liquid crystal display device 15a is provided, and a large number of keys 15b-1 to 15-8 are provided on the left and right peripheral portions of the display screen.
Is provided. An error message, an error coping method, detailed error information, and the like are displayed on the display screen, and the function of the key is displayed at the display screen position corresponding to each key.

[0008]

In advance, the errors occurring in the mechanical / printing head unit 11 of the printer or the hardware part in the controller 14 are given display priorities respectively, and a plurality of errors occur simultaneously and are detected by the various sensors 12. In this case, the controller 14 notifies the display control unit 16 of the error having the highest priority and displays the error message corresponding to the error on the display device 15a. Also, when displaying an error message, if another error occurs, display "other error" near key 15b-4,
If the currently displayed error can be canceled, key 15b-
If "Error clear" is displayed near 8, and if there is another remedy, display "Remedy" near key 15b-2. If there is detailed information about the error, , Display "Detailed information" near the key 15b-3,
When it is possible to return to the previous screen while the coping method or detailed information is displayed, the "previous screen" is displayed in the vicinity of the key 15b-6. Then, when the "other error" key 15b-4 is operated, an error message regarding another error is displayed,
When the "Error release key" 15b-8 is operated, the displayed error is released, and when the "Handling method" key 15b-2 is operated, the handling method message of the error is displayed. When the "detailed information" key 15b-3 is operated, the detailed information of the error is displayed, and when the "previous screen" key 15b-6 is operated, the countermeasure or the previous screen of the detailed information is displayed. To do.

As described above, even if a plurality of errors occur at the same time, the errors can be displayed in order of priority, so that errors with a high priority can be dealt with without overlooking. or,
If multiple errors occur at the same time, "Other error" is displayed, so that another error has occurred.
And other keys that require error indication can be easily recognized,
The operation performance can be improved. Further, when the error is an error that can be canceled, the "error cancel" display is displayed, so that whether or not the error can be canceled and the error cancel key can be easily recognized, and the operation performance can be improved. Further, when there is a coping method for the error, the “coping method” is displayed, so that the presence or absence of the coping method and the display request key for the message regarding the coping method can be easily recognized, and the operation performance can be improved. Furthermore, if detailed information about the error exists, "detailed information"
Since the display is performed, it is possible to easily recognize the presence / absence of the detailed information and the display request key of the message regarding the detailed information, and improve the operation performance. Moreover, since the "previous screen" is displayed when the previous method of the coping method or the detailed information can be returned, the presence or absence of the previous screen information and the key for returning to the previous screen can be easily recognized, and the operation performance can be improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Overall Configuration FIG. 2 is a configuration diagram of an embodiment of the present invention. 11 is a mechanical / print head portion of a printer, 12 is a mechanical / print head error (paper jam, print head pin breakage, ribbon). Various sensors for detecting the feed failure, etc., 13a is a mechanical control unit,
Reference numeral 13b is a head driver, 14 is a controller for controlling the entire printer, 15 is an operator panel, and 16 is a display control unit.

Operator Panel The operator panel 15 is provided with a liquid crystal display device 15a having a large screen of 128 × 256 dots, and a large number of keys 15b-1 to 15-8 are provided on the left and right peripheral portions of the display screen. . The display screen is divided into a message display area 15a-1 and a key function display area 15a-2.The message display area 15a-1 displays error messages (error details), error countermeasures, detailed error information, etc. In the key function display area 15a-2, the functions assigned to the keys 15b-1 to 15b-8 are displayed at the display screen positions (near the keys) corresponding to the keys. The function of each key can be changed as appropriate, a predetermined function is assigned to each key according to various states, and the function is displayed in the vicinity.

Controller The controller 14 has a microcomputer configuration and performs various controls such as printing control and error display control to control the entire printer. Although the part related to print control is not shown in detail, as in the conventional case described in FIG. 22, data and commands are received and analyzed from the host device, and in the case of a character code, they are converted into bit image data. The bit image data is converted and transferred to the head driver 13b for printing. Further, in the case of a line feed and page break command, a paper feed instruction is given to the mechanical control unit 13a to perform line feed and page break of the recording paper. Further, according to instructions from the operator panel 15, the mechanical control section 13b is instructed to perform line feed, page break, and fine adjustment feed to perform line feed, page feed, and fine adjustment feed of the recording paper.

Regarding the error display control, the mechanical control unit 1
The status (error code) from 3a and the head driver 13b and an internally detected error such as RAM are monitored, and when an error occurs, the content is interpreted and an error is displayed. Various functions are programmed in the controller 14 for such error display control. 1
4a is an error display processing unit for displaying an error message corresponding to the error that has occurred, 14b is another error display processing unit for performing another error display when a plurality of errors occur, and 14c is an error cancelable Error display processing unit for displaying whether or not there is a proper error, 14d
Is a handling method display processing unit for displaying a handling method for the error, 14e is a detailed information display processing unit for displaying detailed information (error occurrence position information, etc.) for the error, and 14f is a previous screen of the handling method or the detailed information. It is a previous screen display processing unit for displaying. Further, 14h is an error buffer for storing the error codes of the generated errors in order of priority, and 14i is an error information storage section for displaying error display priority, error cancellation information, coping method information, and detailed information corresponding to each error. What is stored, 14i is a pointer storage unit that stores various pointers. It should be noted that the storage of the error display priority order can be omitted by deciding to increase the error code (number) of the error having the high display priority order.

Error Information Storage Section FIG. 3 is an explanatory diagram of error cancellation information, coping method information, and detailed information stored in the error information storage section 14i. Figure 3
(a) is an error cancellation information table 14i-1, which stores data indicating whether error cancellation is possible / impossible corresponding to each error code ("1": error cancellation possible, "0": error cancellation impossible). If the stored and currently displayed error is an error that can be canceled, the error cancellation display processing unit 14c displays "error cancellation" near the key 15b-8 that requests error cancellation. FIG. 3B is a coping method information table 14i-2, in which the number of coping methods and the code (coping method code) of each coping method are stored in order of priority in association with each error code.
The coping method display processing unit 14d determines whether there is a coping method corresponding to the error for which the error message is displayed,
If there is no action message, no action message is displayed. If there is, the action message is displayed below the error message.
If there is another coping method having a lower priority, the "coping method" is displayed in the vicinity of the key 15b-2 requesting the display of another coping method, and if there is no coping method, the "coping method" is not displayed.
The storage location of the coping method message is identified from the coping method code.

FIG. 3C is a detailed information table 14i-3, which stores the number of detailed information and the code (detailed information code) of each detailed information in order of priority in association with each error code. The detailed information display processing unit 14e determines whether there is detailed information corresponding to the error for which the error message is displayed, and if there is, displays "detailed information" in the vicinity of the key 15b-3 that requests the display of detailed information. At the same time, when the key is pressed, detailed information with the highest priority is displayed below the error message. If there is other detailed information of low priority, the "detailed information" is displayed in the vicinity of the key 15b-3, and if there is no other detailed information, the "detailed information" is not displayed. The detailed information code identifies the storage location of the detailed information message. Figure 3
The error cancellation table of (a) and the coping method information table 14i-2 of FIG. 3 (b) are created in advance and are stored in the error information storage unit 14i.
Stored in the detailed information table 14i of FIG. 3 (c).
-3 is created based on the detailed information code sent together with the error code.

Pointer storage unit The pointer storage unit 14j has an error display pointer 14j-
1, an error code write pointer 14j-2, a coping method display pointer 14j-3, and a detailed information display pointer 14j-4 are stored. The error display pointer 14j-1 is a pointer pointing to an error code for displaying an error message among the plurality of error codes stored in the error buffer 14h, and the error code write pointer 14j-2 is a newly generated error code. Is a pointer pointing to the writing position in the error buffer 14h, and the coping method display pointer 14j-3 displays which coping method among the coping methods in the coping method information table 14i-2 (see FIG. 3B). The detailed information display pointer 14j-4 is a pointer for indicating whether or not the detailed information table 14i-3 (see FIG. 3C).
This is a pointer for instructing which detailed information is to be displayed among the plurality of detailed information in (see).

Display Control Unit The display control unit 16 is a display controller 16a.
And a message table 16 for storing various messages
b. The display control unit 16 analyzes the error code, the coping method code, and the detailed code input from the controller 14 to create an image to be displayed in the message display area 15a-1, and also functions the keys input from the controller 14. Key function display area according to the name display command 15
An image to be displayed on a-2 is created, and image data for one screen is input to the display device 15a and displayed. In the message table 16b, an error message table 16b-1 for storing error messages (error contents etc.) in advance,
A countermeasure message table 16b-2 for storing a countermeasure message and a detailed information message table 16b-3 for storing a detailed information message are provided.

FIG. 4 is an explanatory diagram of the message table 16b. As shown in FIG. 4A, the error message table 16b-1 stores error contents (ribbon error, paper feed error, interlock error, etc.) and supplementary messages corresponding to the error code. The coping method message table 16b-2 stores a coping method message corresponding to the coping method code, for example, a message such as "Please close the throat lever and press the error release key" in the case of an interlock error. In the detailed information message table 16b-3, a detailed information message corresponding to the detailed information code, for example, in the case of a head system error, a message “block: xx pin: xx” indicating the pin position where the error has occurred is displayed. Remembered

Description of Error Display FIGS . 5 and 6 show an example of error display according to the present invention.
Is a display device, and 15b-1 to 15b-8 are keys provided on the left and right peripheral portions of the display screen. (a) Error release display When an error occurs, as shown in Figs. 5 (a) and 5 (b),
An error message corresponding to the error is displayed in the message display area 15a-1, and whether or not the error is a cancelable error is indicated in the error cancellation information table 14i-1.
If it is checked with reference to (FIG. 3 (a)) and the error can be canceled, such as a ribbon error, as shown in FIG. 5 (a), ""Errorclear" is displayed. This allows the operator to recognize that the ribbon error can be cleared, and
The error release key can be identified. When the error release key 15b-8 is pressed, the error currently stored and stored in the error buffer 14h is deleted, and the error display also changes to a message relating to the next predetermined error. However, a serious error such as a RAM error is an error that cannot be canceled by the user and cannot be canceled. In the case of such an error, as shown in FIG.
As shown in (b), "Error cancellation" is not displayed,
The operator can easily recognize that the RAM error is an irreversible error.

(B) Error handling method display When an error (for example, an interlock error) occurs and a message indicating a handling method with a high priority is displayed together with the error message (see FIG. 5 (c)),
If another coping method having a lower priority exists, the “coping method” is displayed in the vicinity of the key 15b-2 requesting the display of another coping method. This allows the operator to identify that there is another way to deal with the interlock error, and yet
Action method You can identify the key. When another coping method is present and the coping method key 15b-2 is pressed, the following coping method message is displayed as shown in FIG. 5 (d). In this case, if there is no other coping method with a lower priority, the display of "coping method" disappears. Instead, if a coping method with a high priority exists, a "previous screen" is displayed in the vicinity of the key 15b-6 requesting the display of the coping method with a high priority.
As a result, the operator can identify that there is another coping method having a high priority, and further can identify the front screen key for displaying the coping method. Incidentally, since the interlock error is an error that can be released, an error release message is displayed near the key 15b-8.

(C) Detailed information display When an error (for example, head error) occurs and an error message is displayed (see FIG. 6 (a)),
If the detailed information exists, the "detailed information" is displayed in the vicinity of the key 15b-3 requesting the display of the detailed information. This allows the operator to identify that the head system error has detailed information, and further identify the detailed information key. When the detailed information key 15b-3 is pressed when the detailed information exists, a message regarding the detailed information having a high priority is displayed as shown in FIG. 6B. In this case,
"Detailed information" if detailed information (low priority) does not exist
Will disappear. Instead, if the high-priority detailed information exists, the “previous screen” is displayed in the vicinity of the key 15b-6 requesting the display of the high-priority detailed information. As a result, the operator can identify that there is another detailed information having a high priority, and can identify the front screen key for displaying the detailed information. Incidentally, since the head system error is an error that cannot be canceled, "error cancellation" is not displayed.

(D) Other error display When a paper feed error occurs at the same time as the ribbon error, an error message with a higher display priority (ribbon error) is displayed (see FIG. 6 (c)). in this case,
Since another error (paper feed error) has occurred in addition to the ribbon error, "other error" is displayed in the vicinity of the key 15b-4 for displaying the message of the other error. As a result, the operator can identify that another error is occurring at the same time as the error currently displayed (ribbon error), and can recognize another error display key. In the presence of other errors, key 15b-
When 4 is pressed, the error message of the next priority error (for example, paper feed error) among other errors is displayed in Fig. 6.
Displayed as shown in (d). Again, the other error
(Ribbon error) still shows "Other error". After that, the error occurring each time the other error key 15b-4 is pressed is cyclically displayed in the display priority order. Since the ribbon error and the paper feed error are errors that can be canceled, "Error cancel" is also displayed near the key 15b-8. The operation of displaying various errors will be described below with reference to FIGS. 7 to 14.

Various display operations (a) Priority error display (FIGS. 7 and 8) When a plurality of errors (error codes 10, 2 and 12) occur at the same time, the error display processing section 14a (FIG. 2) rearrangement means 14a-1 rearranges the error codes in order of priority and stores them in the error buffer 14h in order of priority. Further, the error display pointer 14j-1 is used to point to the highest error code 12 among the error codes, and the write pointer 14j-2 is used to point to the error buffer area for storing the error code that will occur next. The error code 12 designated by the display pointer 14j-1 is input to the display control unit 16,
The error code analyzing unit 16a-1 analyzes the error code, and the screen creating unit 16a-2 creates an error message screen corresponding to the error code 12 and displays it on the display device. As described above, since the important error with the highest display priority is displayed with the highest priority, the important error is not overlooked.

In the error display state, when another error (for example, error code 14 or 3) occurs, the rearrangement means 14a-1 causes the generated error code 14,
3 and error codes 12 and 10 of the error buffer 14h,
2 are rearranged in the order of priority (see FIG. 8), and thereafter, the error display pointer 14j-1 is made to indicate the highest error code 14 among the error codes, and the write pointer 14j-2
Causes an error buffer area for storing an error code to be generated next. The error code 14 indicated by the display pointer 14j-1 is input to the display control unit 16,
The error code analyzing means 16a-1 analyzes the error code, and the screen creating means 16a-2 creates an error message screen corresponding to the error code 14 and displays it on the display device. As described above, when an error with a high priority newly occurs during error display, the error with a high priority is displayed, so that a serious error will not be overlooked.

(B) Other error display (FIG. 9) A plurality of errors (error codes 14, 12, 10,
3 and 2), error codes are stored in the error buffer 14h in order of priority as shown in FIG. 9, and an error message corresponding to the highest priority error code 14 is displayed. In such a state, the key display determination unit 14b-1 in the other error display processing unit 14b determines whether or not another error occurs in addition to the currently displayed error, and if there is, an error is displayed in the display control unit 16. Other error "key display is instructed. As a result, the screen creating means 16a-2 uses the
"Other error" is displayed near 5b-4. Whether or not there is another error is determined by checking whether or not the error code write pointer 14j-2 points to a position other than the beginning of the error buffer 14h. When there is another error, when the key 15b-4 is pressed, the key press detection means 14b-2 detects this and the error display pointer 1
4j-1 is advanced by 1, the error code indicated by the error display pointer 14j-1 (error code of the next priority among other errors) is input to the display control unit 16, and the error message is displayed on the display device 15a. indicate.

(C) Error release display (FIGS. 10 and 11) While the error display is displayed, the key display determination unit 14c-1 of the error release display processing unit 14c releases the currently displayed error. Whether or not the error is possible is checked with reference to the error cancellation information table 14i-1 (FIG. 3A). If the error can be canceled, the display control unit 16 is instructed to display the "error cancellation" key. As a result, the screen creating means 16a-2 displays "error reset" near the key 15b-8.
When the error release key 15b-8 is pressed in the case of an error that can be released, the key press detection means 14c-2 detects this and notifies the error code deletion means, and the error code deletion means 14c-3 releases the error. The error code indicated by the error display pointer 14j-1 is deleted from the error buffer 14h by the notification. Also, the error display pointer 14j-1
Is updated, and an error code having the next priority (case 1) is designated, or an error code having the highest priority (case 2) is designated, and the designated error code is input to the display control unit 16. And display an error message.

FIG. 11 is an explanatory diagram when the error cancel key 15b-8 is pressed while the error code 3 is displayed. When the error release key 15b-8 is pressed, the error code 3 is deleted from the error buffer 14h, and the lower error code 2 is shifted upward and jams. Then, in case 1, the content is updated to point to the deleted error code 2 having the next priority,
In case 2, the content is updated so that the display pointer 14j-1 points to the error code 14 having the highest priority. Whether it depends on case 1 or case 2 depends on the specifications.

(D) Remedy method display (FIG. 12) When an error occurs and an error message is displayed, the key display determination section 14d-1 of the coping method display processing section 14d displays the currently displayed error. Whether there is a handling method message in the handling method information table 14i-2 (Fig. 3
Refer to (b)) to check, and if present, display control unit 1
6 is instructed to display the “Countermeasure” key. As a result, the screen creating means 16a-2 displays the "handling method" near the key 15b-2. When there is a coping method, when the coping method key 15b-2 is pressed, the key pressing detection means 14d-2 detects this and the content of the coping method display pointer 14j-3 (the initial value indicates the dummy code position. One),
The highest priority coping method code designated by the pointer is read from the coping method information table 14i-2, and the display control unit 1 is read.
Enter in 6. The coping method analyzing unit 16a-3 analyzes the coping method code, and the screen creating unit 16a-2 reads out the coping method message corresponding to the coping method code from the message table 16b and displays the screen information so as to be displayed below the error message. Is created and displayed on the display device 15a.

Then, the key display judgment unit 14d-1 judges whether or not there is another coping method with a low priority, and if there is, it instructs the display control unit 16 to display the "coping method" key and continues. To display "Countermeasure" near key 15b-2,
If it does not exist, the “Countermeasure” key is not displayed and the “Countermeasure” display is erased. When the “Countermeasure” is displayed, the contents of the countermeasure display pointer 14j-3 are updated every time the countermeasure key 15b-2 is pressed in the same manner as above, and the next priority countermeasure is displayed. A code is specified, and a coping method indicated by the pointer is specified as a coping method information table 14i-2.
It is read from and input to the display control unit 16 to be displayed.
The handling method display pointer 14j-3 is used to point to the handling method code of the highest priority, and the handling method of the highest priority is displayed together with the error message (error content etc.). It is also possible to perform method display control so as to sequentially display other coping method messages of low priority. In this case, if the handling method code is 0, the "handling method" key is not displayed.

(E) Detailed information display (FIG. 13) When an error occurs, a code (detailed information code) indicating detailed information such as the location where the error occurred may be sent from the error detection side. When the detailed information code is sent together with the error code, the detailed information creating means 14g arranges the number of detailed information and the detailed information code in order of priority corresponding to the error code, and the detailed information table 14i-
3 (see FIG. 3 (c)). The detailed information is deleted from the detailed information table 14i-3 when the error is released.
In a state where a predetermined error has occurred and an error message is displayed, the key display determination unit 14e-1 of the detailed information display processing unit 14e determines whether the detailed error message is present in the currently displayed error. 14i-3, the check is performed, and if it exists, the display control unit 16 is instructed to display the "detailed information" key. As a result, the screen creating means 16a-2 displays "detailed information" near the key 15b-3.

When the detailed information key 15b-3 is pressed in the presence of detailed information, the key pressing detection means 14e-2 detects this and the content of the detailed information display pointer 14j-4 (the initial value is the dummy code position). 1), the detailed information code of the highest priority designated by the pointer is read from the detailed information table 14i-3, and the display control unit 1
Enter in 6. The detailed information analysis means 16a-4 analyzes the detailed information code, and the screen creation means 16a-2 reads the detailed information message corresponding to the detailed information code from the message table 16b and displays the screen information so that it is displayed below the error message. And display it on the display device.

Then, the key display judgment unit 14e-1 judges whether or not there is another detailed information of lower priority, and if there is, it instructs the display control unit 16 to display the "detailed information" key and continues. To display "detailed information" near the key 15b-3,
If it does not exist, the "detailed information" key is not instructed and the "detailed information" display is erased. When the "detailed information" is displayed, the contents of the detailed information display pointer 14j-4 are updated each time the detailed information key 15b-3 is pressed, and the details of the next priority level are updated. An information code is designated, and the detailed information code designated by the pointer is read from the detailed information table 14i-3 and input to the display control unit 16 to be displayed.
The detailed information pointer 14j-4 is used to point to the detailed information code of the highest priority, and the detailed information of the highest priority is displayed together with the error message (error content etc.). It is also possible to perform display control so that other detailed information messages of lower priority are displayed sequentially. In this case, the detailed information code is 0
If it is an individual, the "detailed information" key is not displayed.

(F) Previous screen display (FIG. 14) In the state where the coping method message or the detailed information message is displayed, the key display judging section 14f-1 of the preceding screen display processing section 14f causes the coping method information table 14i- 2 or by referring to the detailed information table 14i-3, it is determined whether or not there is a coping method or detailed information having a higher priority than the coping method or detailed information currently displayed, and if there is, the display control unit 16 displays " Instruct to display "Previous screen" key. As a result, the screen creating means 16a-2 displays the "previous screen" near the key 15b-6.
Is displayed.

When the previous screen key 15b-6 is pressed in the presence of the previous screen, the key press detecting means 14f-2 detects this and the coping method display pointer 14j-3 or the detailed information display pointer 14j-4 is displayed. The content is decremented, and the next-highest-priority coping method code or detailed information code designated by the pointer is read from the coping method information table 14i-2 or the detailed information information table 14i-3 and input to the display control unit 16. Coping method analysis means 16a-3 or detailed information analysis means 1
6a-4 analyzes the handling method code or the detailed information code, and the screen creating means 16a-2 reads the handling method message or the detailed information message corresponding to the handling method code or the detailed information code from the message table 16b, Screen information to be displayed on the display device. Then, the key display determination unit 14f-1
Determines whether another countermeasure or detailed information having a high priority exists, and if there is, a “previous screen” is displayed on the display control unit 16.
The key display is instructed to continuously display the "previous screen" near the key 15b-6, and if not present, the "previous screen" is erased.

[0035] Flow diagram 15 diagram 21 of a display control of the controller is a flow diagram of the error display control by the controller 14. The error display control of the controller 14 will be described below with reference to these flowcharts. (a) Error screen display (Fig. 15) When an error occurs and an error code is input from the error detection side, the error code and the error code already written in the error buffer 14h are rearranged in order of priority, and then, Update the contents of the write pointer 14j-2 so that it points to the storage area where the next error code is packed.
(Step 101). After that, when the detailed information code is sent together with the error code, the detailed information table 14i-3 (FIG. 3 (c)) is arranged by arranging the number of detailed information codes and the detailed information codes in correspondence with the error code. Incorporate
(Step 102). After the detailed information table is created, the error display pointer 14j-1 is made to point to the highest error code (step 103). Next, the pointer level of the coping method display pointer 14j-3 is set to the highest level, and the pointer level of the detailed information display pointer 14j-4 is set to the highest level (step 104). It is assumed that the dummy code is stored in the highest level of the coping method display pointer level and the highest level of the detailed information display pointer level.

Then, the error code display pointer 14j-
Error code indicated by 1 and corrective action display pointer 14j-3
Action code and detailed information display pointer 14j-
The detailed information code designated by 4 is input to the display control unit 16. Further, it is determined whether or not the function is displayed for each key, and a predetermined key function display instruction is input to the display control unit 16. The display control unit 16 searches for an error message corresponding to the input error code, searches for a coping method message and a detailed information message corresponding to the coping method code and the detailed information code, and follows the key function display instruction to display the entire screen. Screen data is created (step 105). In this case, since the coping method code and the detailed information code are dummy codes, the coping method message and the detailed information message are not included in the screen data.

The key function display instruction is given by the following determination process. That is, if the content of the write pointer 14j-2 of the error buffer 14h is not 0, the "other error" display is instructed, and if it is 0, the "other error" display is not instructed.-The error display pointer 14j- If the error clearing information of the error code pointed to by 1 is "1", the "error clearing" display is instructed, and if it is "0", the "error clearing" display is not instructed.-The error display pointer 14j-1 points If the number of the coping method for the error is 1 or more, the "coping method" is instructed, and if it is 0, the "coping method" is not displayed. ・ Detailed information code for the error pointed to by the error display pointer 14j-1 If the number of is 1 or more, the "detailed information" display is instructed, and if it is 0, the "detailed information" display is not instructed.-The "previous screen" display is not instructed. When the screen data creation is completed as described above, the display control unit 16 inputs the screen data into the display device 15a and displays an error (step 106).

(B) Key control (Fig. 16) While the error is displayed, the controller 14
Is a method of coping with the key, the detail information key, another error key, the previous screen key, or the error release key has been pressed (steps 201 to 205). When the method key is pressed, the coping method routine of FIG. 17 is executed (step 20).
6) When the detailed information key is pressed, the detailed information routine of FIG. 18 is executed (step 207), and when another error key is pressed, the other error routine of FIG. 19 is executed (step 208). When the screen key is pressed, the previous screen routine of FIG. 20 is executed (step 209), and when the error release key is pressed, the error release routine of FIG. 21 is executed (step 210).

(C) Coping method display control (FIG. 17) When the coping method key is pressed, the coping method display pointer 14
Advance j-3 by one (step 301). Then, a handling method message is searched for based on the handling method code having the highest priority pointed to by the handling method display pointer 14j-3, and screen data is created (step 302). If the countermeasure display pointer points to the dummy code, the countermeasure is not displayed. The key function name displayed together at this time is determined as follows. That is, if there is another coping method code with a lower priority, "coping method" is displayed, and if there is no coping method, no coping method is displayed.- another coping method code with a high priority. If there is, "Previous screen" is displayed, if it does not exist, "Previous screen" is not displayed.-If multiple errors occur simultaneously, "Other error" is displayed and multiple If they do not occur at the same time, "Other error" is not displayed.-If the currently displayed error can be cleared, "Error clear" is displayed. If it cannot be cleared, "Error clear" is displayed. Not displayed. When the screen data creation is completed as described above, the display control unit 16 inputs the screen data into the display device 15a and displays an error (step 303).

(D) Detailed information display control (FIG. 18) When the detailed information key is pressed, the detailed information display pointer 14
Advance j-4 by 1 (step 401). Then, the detailed information message is searched based on the detailed information code of the highest priority pointed to by the detailed information display pointer 14j-4 to create screen data (step 402). When the detailed information display pointer points to the dummy code, the detailed information is not displayed. The key function name displayed together at this time is determined as follows. That is, "Detailed information" is displayed when another detailed information code with a lower priority exists, and "Detailed information" is not displayed when there is no other detailed information code. If there is, "Previous screen" is displayed, if it does not exist, "Previous screen" is not displayed.-If multiple errors occur simultaneously, "Other error" is displayed and multiple If they do not occur at the same time, "Other error" is not displayed.-If the currently displayed error can be cleared, "Error clear" is displayed. If it cannot be cleared, "Error clear" is displayed. Not displayed. When the screen data creation is completed as described above, the display control unit 16 inputs the screen data into the display device 15a and displays an error (step 403).

(E) Other error display control (FIG. 19) When another error key is pressed, the error display pointer 14
Advance j-1 by 1 (step 401). Then, Figure 1
5 is skipped to step 104, and the subsequent processing is repeated.
If the contents of the error display pointer 14j-1 and the contents of the error code write pointer 14j-2 are equal,
The contents of the error display pointer 14j-1 are displayed in the error buffer 14h.
To the beginning of.

(F) Previous screen display (FIG. 20) When the previous screen key is pressed, in the case of the coping method screen,
Remedy Return the display pointer 14j-3 by 1 (step 50
1) After that, the processes from step 302 onward in FIG. 17 are executed to display the previous coping method display screen. On the other hand, in the case of the detailed information screen, move the detailed information display pointer 14j-4 to 1
Return (step 502), and then step 40 of FIG.
The second and subsequent processes are executed to display the previous detailed information display screen.

(G) Error release display (FIG. 21) When the error release key is pressed, the error display pointer 14
The error code indicated by j-1 is deleted from the error buffer 14h, the error code of the next priority is moved up to the deleted part and refilled, and the content of the write pointer 14j-2 is returned by one (step 601). Then, it is judged whether the content of the write pointer 14j-2 is 0, that is, the head of the error buffer is designated (step 60).
2) If 0, it is considered that all the errors have been canceled, the error screen is erased, and the process ends. However, if there is another error code other than 0, the content of the error display pointer 14j-1 is updated to indicate the error code having the next priority (case 1), or the highest priority is given. The error code (case 2) is designated (step 603), and the processes after step 104 of FIG. 15 are executed to display the error message of the error code designated by the error display pointer. Although the case where the present invention is applied to the error display of the printer device has been described above, the present invention is not limited to the printer device and can be applied to the error display of other devices such as a facsimile device. Although the present invention has been described above with reference to the embodiments, the present invention can be variously modified according to the gist of the present invention described in the claims, and the present invention does not exclude these.

[0044]

As described above, according to the present invention, even if a plurality of errors occur at the same time, the errors can be displayed in order of priority, so that the errors with high priority can be dealt with without fail. Further, according to the present invention, since "another error" is displayed when a plurality of errors occur at the same time, it is easy to confirm that another error has occurred and a key for requesting another error display. Can be recognized and the operation performance can be improved.
Further, according to the present invention, when the error is an error that can be canceled, "error cancellation" is displayed, so that whether or not the error can be canceled and the error cancellation key can be easily recognized, and the operation performance can be improved. Further, according to the present invention, when the coping method for the error exists, the “coping method” is displayed,
It is possible to easily recognize the presence / absence of the coping method and the display request key of the message regarding the coping method, and improve the operation performance.

Further, according to the present invention, when the detailed information for the error exists, the "detailed information" is displayed, so that it is possible to easily recognize the presence or absence of the detailed information and the display request key of the message regarding the detailed information. The operation performance can be improved. Further, according to the present invention, the coping method and the "previous screen" are displayed when the previous screen of the detailed information can be returned, so that the presence or absence of the previous screen information and the key for returning to the previous screen can be easily recognized.
The operation performance can be improved. Furthermore, since the amount of information that can be displayed on the display screen is large, it is easy for the operator to understand, and moreover, since the key function is displayed according to the type and state of the error, it is easy to operate and it is possible to make it manual-less.

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a configuration diagram of an embodiment of the present invention.

FIG. 3 is an explanatory diagram of error information.

FIG. 4 is an explanatory diagram of various message tables.

FIG. 5 is an example of a first error message screen.

FIG. 6 is an example of a second error message screen.

FIG. 7 is an explanatory diagram of a first priority error display.

FIG. 8 is a diagram illustrating a second priority error display.

FIG. 9 is an explanatory diagram of another error display.

FIG. 10 is an explanatory diagram of an error cancellation display.

FIG. 11 is another explanatory diagram of an error cancellation display.

FIG. 12 is an explanatory diagram of a coping method display.

FIG. 13 is an explanatory diagram of detailed information display.

FIG. 14 is an explanatory diagram of a previous screen display.

FIG. 15 is a flowchart of an error screen display process.

FIG. 16 is a flowchart of key control processing.

FIG. 17 is a flowchart of a coping method display.

FIG. 18 is a flowchart of detailed information display.

FIG. 19 is a flowchart of another error display control.

FIG. 20 is a flowchart of front screen display control.

FIG. 21 is a flow chart of error cancellation display control.

FIG. 22 is an explanatory diagram of a conventional printer device.

[Explanation of symbols]

 Various sensors for detecting errors 14 Controller 15 Operator panel 15a Liquid crystal display device 15b-1 to 15b-8 Key 16 Display control unit

Claims (6)

[Claims] 1. An error display system comprising a display device, an error detection means, and an error display control means for detecting an error and displaying an error message on a display screen, wherein each error is given a display priority in advance. , When multiple errors occur at the same time, or another error occurs while displaying an error, the error display method is characterized in that an error message corresponding to the error with the highest priority is displayed. 2. An error display system comprising a display device, an error detection means, and an error display control means, which detects an error and displays an error message on the display screen, wherein one or more keys are provided in a peripheral portion of the display screen. When an error message corresponding to a predetermined error is displayed on the display screen, if another error occurs, another error occurs at the display screen position corresponding to the key requesting the error message display of the other error. The error display method is characterized in that an error message of another error is displayed on the display screen when the key is operated. 3. An error display system comprising a display device, an error detection means, and an error display control means, wherein an error is detected and an error message is displayed on the display screen, and at least one key is provided on the periphery of the display screen. A storage means is provided for storing the error cancellation enable / disable information corresponding to each error, and the error cancellation is possible by judging the error cancellation / non-cancellation of the error currently displaying the error message by referring to the stored contents. In such a case, a message indicating that the error can be released is displayed at the display screen position corresponding to the key requesting the error release, and when the key is operated, the error is released. An error display method that does not display that cancellation is possible. 4. An error display system, comprising a display device, an error detection means, and an error display control means, for detecting an error and displaying an error message on the display screen, wherein at least one key is provided in a peripheral portion of the display screen. , A storage means is provided for storing the countermeasures against the errors in correspondence with each error in order of priority, and the countermeasure message having the higher priority is displayed together with the error message display, and the priority is given to the displayed countermeasure. If there is a remedy, if there is, a message indicating that there is another remedy is displayed at the display screen position corresponding to the key requesting the display of the other remedy, and the key is operated. When this occurs, another countermeasure message will be displayed on the display screen, and the priority will be lower than the displayed countermeasure. If there is no corrective action, an error display method that does not display that there is another corrective action. 5. An error display system, comprising a display device, an error detection means, and an error display control means, wherein an error is detected and an error message is displayed on the display screen, one or more keys are provided in a peripheral portion of the display screen. When displaying an error message according to a predetermined error on the display screen, if detailed information about the error exists, it is indicated that the detailed information exists at the display screen position corresponding to the key requesting the detailed information display. When the key is operated, detailed information on the error is displayed on the display screen when the key is operated, and when the detailed information does not exist, it is not displayed that the detailed information exists. method. 6. When displaying a coping method or detailed information, a display to the effect that the screen can be returned to the previous screen is displayed at the display screen position corresponding to the key requesting the previous screen display, and when the key is operated, the previous screen is displayed. The error display method according to claim 5 or 6, wherein the screen is displayed on the display screen, and when the previous screen does not exist, the display indicating that the previous screen can be returned is not performed.