JP5189116B2 - Input operation device - Google Patents

Description

  The present invention belongs to the technical field of input operation devices for various electric devices such as image processing apparatuses such as copying machines and multifunction machines.

  In recent years, copiers have been equipped with a variety of functions, and along with such multi-functionalization, in order to easily realize setting of those functions, in recent years, together with hard keys such as a start key and a numeric keypad. Some of them are equipped with an input operation device that is equipped with a touch panel unit and can perform various function settings using both the hard keys and the touch panel unit.

  In this type of input operation device, the user tends to pay more attention to the touch panel unit than to the hard keys. Therefore, setting of a desired function is mainly performed on the touch panel unit. However, a start key for instructing execution of a set function may be provided only as a hard key. At this time, a situation may occur in which the user cannot find the start key and cannot complete the operation.

  On the other hand, there are the following Patent Documents 1 and 2 as documents relating to an input operation device for setting functions. Japanese Patent Application Laid-Open Publication No. 2004-228561 describes a procedure of operation by causing a key such as a function key for selecting a predetermined function, a data input key, a determination key, or the vicinity of the key to emit light or blink.

  Japanese Patent Application Laid-Open No. H10-228561 proposes a technique for improving operability by linking the display on the liquid crystal display unit and the color of the hard key.

JP 2003-330597 A JP 2006-099412 A

  In Patent Documents 1 and 2, the following problems and problems are considered. That is, in Patent Document 1, it is necessary to equip a light-emitting device and the like, which requires a great deal of cost. In the technique of Patent Document 2, a hard key cannot be recognized unless the user's viewpoint is away from the liquid crystal panel, and therefore, a great improvement in operability cannot be expected.

  The present invention has been made in view of such circumstances, and the operability and convenience of a user who cannot quickly recognize a hard key without impairing the convenience of the user who can quickly recognize the presence of the hard key. It aims at providing the technique which can improve.

The invention described in claim 1
A hard key portion including a predetermined hard key;
A display unit that has a touch panel function and displays an image showing an operation key for inputting a predetermined instruction;
A receiving unit for receiving operations on the hard key unit and the display unit;
A determination unit configured to determine whether or not a situation in which the user does not recognize the presence of the predetermined hard key is generated based on a user operation state with respect to the predetermined hard key;
The operation key currently displayed in the predetermined display area of the display unit only when the determination unit determines that a situation in which the user does not recognize the presence of the predetermined hard key has occurred A display control unit that displays an image showing the predetermined hard key instead of an image showing a predetermined operation key,
When the operation is performed on the display area of the image indicating the predetermined hard key displayed on the display unit under the control of the display control unit, the reception unit receives the predetermined hard key. This is an input operation device that accepts an execution instruction for the same processing as that in the case of being operated.

  According to this invention, the display control unit displays an image indicating the hard key only when the determination unit determines that a situation in which the user does not recognize the presence of the hard key has occurred. In addition, when the operation is performed on the image area, the reception unit receives the same processing execution instruction as when the hard key is operated. Therefore, when the user cannot quickly recognize the predetermined hard key, an image that exhibits the same function as the hard key can be revealed. Thereby, the operability and convenience of the input operation device when the user cannot quickly recognize the predetermined hard key can be improved.

  Further, if an image showing the hard key is always displayed on the display unit, the image is currently displayed in a predetermined display area of the display unit in order to display the image on the display unit. An image indicating the predetermined operation key cannot be displayed, and the operability and convenience of the input operation device may be impaired for a user who can quickly recognize the hard key. On the other hand, in the present invention, the display control unit displays the image indicating the hard key on the display unit because the determination unit does not recognize the presence of the hard key by the user. Therefore, the operability and convenience of the input operation device for the user who can quickly recognize the hard key can be prevented as much as possible.

  According to a second aspect of the present invention, in the input operation device according to the first aspect, the determination unit has elapsed since the timing at which the predetermined hard key can be accepted as an appropriate operation. When the time exceeds a predetermined reference value, it is determined that a situation has occurred in which the user does not recognize the presence of the predetermined hard key.

  According to the present invention, when the elapsed time after the timing at which an operation on the predetermined hard key can be accepted as an appropriate operation exceeds a predetermined reference value, the user Since it is determined that a situation in which the presence of a predetermined hard key is not recognized has occurred, whether or not a situation has occurred in which the user does not recognize the presence of the predetermined hard key. Can be determined by a relatively simple method.

  According to a third aspect of the present invention, in the input operation device according to the second aspect of the present invention, the input operation device further includes a reference value setting input unit for setting the predetermined reference value. When the elapsed time after the timing at which an operation can be started as an appropriate operation exceeds the reference value set by the reference value setting input unit, the user determines the presence of the predetermined hard key. It is determined that an unrecognized situation has occurred.

  According to the present invention, since the predetermined reference value can be set by the reference value setting input unit, whether or not a situation has occurred in which the user does not recognize the presence of the hard key. It is possible to change the judgment criteria.

  According to a fourth aspect of the present invention, in the input operation device according to any one of the first to third aspects, the display control unit displays an image indicating the predetermined hard key on the display unit. Of the edge portions constituting the region, the edge portion that faces the predetermined hard key is slid toward a predetermined display position.

  According to the present invention, the image showing the predetermined hard key is slid from the edge part that constitutes the display area of the display part toward the predetermined display position from the edge part that faces the hard key. Since it was made to appear, the image which exhibits the same function as the said hard key can be shown with respect to a user.

  According to a fifth aspect of the present invention, in the input operation device according to any one of the first to fourth aspects of the present invention, an image showing the predetermined hard key is displayed as an edge part constituting the display area of the display unit. A first display mode in which a predetermined display position is displayed by sliding from an edge facing the predetermined hard key toward a predetermined display position, and an image showing the predetermined hard key is displayed on the predetermined display. A display mode selection input unit for performing an input to selectively select a display mode from the second display mode to be displayed so as to pop out at a position; and the display control unit includes the display mode selection input unit An image showing the predetermined hard key is displayed on the display unit in the display mode selected by.

  According to this invention, the user can select the display mode (display mode) of the image showing the hard key.

  According to the present invention, it is possible to improve the operability and convenience of a user who cannot quickly recognize a hard key without impairing the convenience of the user who can quickly recognize the presence of the hard key.

2 is a side view showing an internal configuration of the multifunction machine. FIG. It is an enlarged view of an operation part. FIG. 3 is a block diagram illustrating an electrical configuration of the operation unit illustrated in FIGS. 1 and 2. (A) is a figure which shows the state in which the operation keys K1-K6 are currently displayed on the predetermined display area of a display part, (b) is a reference value with which the elapsed time measured by a count part was predetermined. It is a figure which shows the state by which the image which shows the start key K7 and the logout key K8 instead of the said operation keys K1-K6 is displayed on the display part 61 when it is judged by the judgment part that it exceeded. It is a flowchart which shows a series of processes of the control part relevant to a start key. It is a flowchart which shows a series of processes of the control part relevant to a logout key. It is a block diagram which shows the electrical structure which concerns on the operation part in the modification (1) of this invention. It is a figure which shows the selection screen G1 for selecting a display system. It is a block diagram which shows the electrical structure which concerns on the operation part in the modification (2) of this invention. It is a figure which shows the setting screen for setting a reference value.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a multifunction machine as an embodiment of an image forming apparatus according to the invention will be described with reference to the drawings. FIG. 1 is a side view showing the internal configuration of the multifunction machine. The multifunction device 1 has functions such as a copy function, a printer function, a scanner function, and a facsimile function. The multifunction device 1 has a main body 2, a stack tray 3 disposed on the left side of the main body 2, and a main body 2. The document reading unit 4 is disposed above the document reading unit 4 and the document feeding unit 5 is disposed above the document reading unit 4.

  The main body 2 has been fed from a plurality of paper feed cassettes 19, a paper feed roller 20 for feeding recording sheets from the paper feed cassette 19 one by one to a later-described image forming unit 21, and a paper feed cassette 19. And an image forming unit 21 that forms an image on recording paper.

  An image forming unit 21 outputs a laser beam or the like based on image data acquired by a scanner unit 13 (to be described later) and exposes the photosensitive drum 22, and development for forming a toner image on the photosensitive drum 22. A transfer unit 25 that transfers the toner image on the photosensitive drum 22 to the recording paper, and a pair of rollers 26 and 27 that heat the recording paper to which the toner image has been transferred and fix the toner image on the recording paper. And a pair of conveyance rollers 30 and 31 that are provided in a sheet conveyance path in the image forming unit 21 and convey the recording sheet to the stack tray 3 or the discharge tray 29.

  When images are formed on both sides of the recording paper, the image forming unit 21 forms an image on one side of the recording paper, and then the recording paper is nipped by the pair of conveying rollers 30 on the discharge tray 29 side. And In this state, the conveyance roller pair 30 is reversed to switch back the recording paper, and the recording paper is sent to the paper conveyance path 32 and conveyed again to the upstream area of the image forming unit 21. Then, the recording paper is discharged to the stack tray 3 or the discharge tray 29.

  The document reading unit 4 includes a scanner unit 13 including a CCD (Charge Coupled Device) sensor and an exposure lamp, and a document table 14 and a document reading slit 15 made of a transparent member such as glass. The scanner unit 13 is configured to be movable by a drive unit (not shown). When reading a document placed on the document table 14, the scanner unit 13 is moved along the document surface at a position facing the document table 14, and the document image is displayed. The image data acquired while scanning is output to the control unit 100 (see FIG. 3). When reading the document fed by the document feeding unit 5, the document is moved to a position facing the document reading slit 15 and synchronized with the document feeding operation by the document feeding unit 5 via the document reading slit 15. The image of the original is acquired and the image data is output to the control unit 100.

  The document feeder 5 includes a document placement unit 16 for placing a document, a document discharge unit 17 for ejecting an image-read document, and a document placed on the document placement unit 16. A document transport mechanism 18 including a paper feed roller, a transport roller (not shown), and the like for feeding the paper one by one to a position facing the document reading slit 15 and discharging it to the document discharge section 17 is provided. The document transport mechanism 18 further includes a paper reversing mechanism (not shown) that reverses the document and reversely transports the document to a position facing the document reading slit 15, and images on both sides of the document are passed through the document reading slit 15. Reading is possible from the scanner unit 13.

  Further, the document feeding unit 5 is provided so as to be rotatable with respect to the main body unit 2 so that the front side thereof can move upward. By moving the front side of the document feeder 5 upward to open the upper surface of the document table 14, the operator can place a read document, for example, a book in a spread state, on the upper surface of the document table 14. It has become.

  An operation unit 6 is provided at the front part of the multifunction machine 1. Referring to the enlarged view shown in FIG. 2, the operation unit 6 includes a display unit 61 including an LCD (Liquid Crystal Display) and the like, and a hard key unit 62 into which an operation instruction is input from the operator. The hard key unit 62 includes a start key 63, a numeric key 64, a function switching key unit 65, a logout key 66, and the like.

  The start key 63 receives an instruction to start each operation such as a copy operation and a scan operation from the operator. The numeric keypad 64 is a key for receiving an instruction for designating the number of copies from the operator. The function switching key unit 65 is a key that receives from the operator a function switching instruction for switching between the scanner function, the facsimile function, the printer function, and the copy function. The scanner key that sets the scanner mode in which the multifunction device 1 functions as a scanner. 65a, a facsimile key 65b for setting the facsimile mode in which the multifunction device 1 functions as a facsimile, a printer key 65c for setting in a printer mode in which the multifunction device 1 functions as a printer, and the multifunction device 1 functions as a copy. A copy key 65d for setting the copy mode.

  The display unit 61 includes, for example, an LCD (Liquid Crystal Display) and the like, and includes a touch panel unit combined with a touch panel function. The display unit 61 displays various operation screens, and allows an operator to input execution commands for various functions by touching a display surface (displayed operation keys).

  FIG. 3 is a block diagram showing an electrical configuration of the operation unit 6 shown in FIGS. The operation unit 6 illustrated in FIG. 3 corresponds to the operation unit 6 illustrated in FIGS. 1 and 2. The display unit 61 displays a plurality of keys that accept input of various instructions by the touch panel function under the control of the control unit 100.

  The control unit 100 includes a CPU that controls the operation of the multifunction device 1, a RAM (Random Access Memory) having a function of temporarily storing data and a function as a work area, a ROM that stores a program in advance, and the program The CPU, the RAM, and the ROM are configured to exchange data via a data bus.

  The multi-function device 1 according to the present embodiment has the predetermined display of the display unit 61 only when it is considered that there is a situation in which the presence of the predetermined hard key is not recognized during the operation of the operation unit 6. When an image indicating the predetermined hard key is displayed instead of the image of the operation key displayed in the display area and an operation is performed on the display area of the image indicating the predetermined hard key, the predetermined key is displayed. It is accepted that an instruction to execute the same process as when the hard key is operated is given.

  The control unit 100 has functions as a reception unit 101, a count unit 102, a determination unit 103, and a display control unit 104 in order to execute such processing, and the input operation device according to the present invention includes the above-described input operation device. Each part 101-104 and the operation part 6 are comprised.

  The accepting unit 101 performs processing for accepting an instruction input by a user (operator) from each key of the display unit 61 of the operation unit 6 and the hard key unit 62.

  The count unit 102 measures an elapsed time after the timing at which an operation on the predetermined hard key can be accepted as an appropriate operation. In the following description, a start key 63 and a logout key 66 are assumed as an example of the predetermined hard key. In this case, the timing at which the operation on the start key 63 can be accepted as an appropriate operation is the timing at which some operation is performed on the operation unit 6 (the operation timing of the latest operation on the operation unit 6). The timing at which an operation on the logout key 66 can be accepted as an appropriate operation is the timing at which some job by the multifunction device 1 is completed.

  The determination unit 103 determines whether a situation has occurred in which the user does not recognize the presence of the start key 63. In the present embodiment, the determination unit 103 performs the determination based on whether or not the elapsed time measured by the counting unit 102 exceeds a predetermined reference value.

  The display control unit 104 controls the display operation by the display unit 61. In the present embodiment, the determination unit 103 determines that the elapsed time measured by the counting unit 102 has exceeded the predetermined reference value (a situation where the user does not recognize the presence of the start key 63). Is determined by the determination unit 103), instead of an image showing a predetermined operation key among the operation keys currently displayed in a predetermined display area of the display unit 61, An image showing a hard key, for example, a start key 63 is displayed on the display unit 61. The image indicating the hard key is, for example, an image imitating the appearance of the hard key.

  For example, as shown in FIG. 4A, the elapsed time measured by the counting unit 102 in a state where the operation keys K1 to K6 are currently displayed in a predetermined display area of the display unit 61 is determined in advance. When the determination unit 103 determines that the determined reference value has been exceeded, the display control unit 104 indicates the start key 63 instead of these operation keys K1 to K6, as shown in FIG. An image K8 indicating an image K7 or a logout key 66 is displayed on the display unit 61.

  Note that the image K7 indicating the start key 63 and the image K8 indicating the logout key 66 are displayed as the hardware among the edges E1 to E4 (see FIG. 2) constituting the display area of the display unit 61. As an example, a so-called slide-in animation method is assumed in which an edge E1 facing the start key 63 as a key is slid toward a predetermined display area. According to this display mode, it is possible to make the user easily notice the appearance of an image that performs the same function as the start key 63.

  In addition to this display mode, a so-called pop-up method in which an image K7 indicating the start key 63 and an image K8 indicating the logout key 66 are displayed so as to jump out to the predetermined display position can be employed.

  When the reception unit 101 is operated on the display area of the image K7 indicating the start key 63 and the image K8 indicating the logout key 66 displayed on the display unit 61 under the control of the display control unit 104, It is accepted that the same processing execution instruction as when the start key 63 is operated is given.

  FIG. 5 is a flowchart showing a series of processing of the control unit 100 related to the start key 63.

  As shown in FIG. 5, when any operation is performed on the operation unit 6 except the start key 63 (YES in step # 1), the count unit 102 of the control unit 100 performs a time measurement operation (count operation). Is started (step # 2). Next, when any setting change operation is performed on the operation unit 6 (YES in step # 3), the reception unit 101 receives operation information indicating the change operation, and the count unit 102 counts the current count. The value is cleared (step # 4), and the process returns to step # 2.

  On the other hand, when the change operation has not been performed (NO in step # 3), control unit 100 determines whether or not the operation for start key 63 can be accepted as an appropriate operation. (Step # 5) If it is determined that the operation on the start key 63 cannot be accepted as an appropriate operation (NO in Step # 5), the process of Step # 4 is executed. The state where the operation on the start key 63 cannot be accepted is, for example, a state where a sheet designated by the user is not prepared, or a state where the document feeding unit 5 should be used, but the document feeding unit 5 is not set to use 5.

  If control unit 100 determines that the operation for start key 63 can be accepted as an appropriate operation (YES in step # 5), determination unit 103 determines the count value of count unit 102 (described above). It is determined whether or not the elapsed time measured by the counting unit 102 has exceeded the predetermined reference value (threshold value) (step # 6), and if not (NO in step # 6), step While returning to the process of # 3, if it is determined that the count value exceeds the reference value (YES in step # 6), the display control unit 104 displays the operation keys K1 to K6 in a predetermined display area of the display unit 61. Instead of the image, an image K7 indicating the start key 63 is displayed on the display unit 61 (step # 7).

  FIG. 6 is a flowchart showing a series of processing of the control unit 100 related to the logout key 66.

  As shown in FIG. 6, when a job such as a print job is completed (YES in step # 11), the counting unit 102 of the control unit 100 starts a time measuring operation (counting operation) (step # 12). Next, the reception unit 101 determines whether operation information indicating a setting change operation has been received from the operation unit 6 (whether the change operation has been performed) (step # 13), and receives the operation information. If not (NO in step # 13), determination unit 103 determines whether the count value of count unit 102 (the elapsed time measured by count unit 102) exceeds the predetermined reference value. (Step # 14), if it is determined that it has not exceeded (NO in step # 14), the process returns to step # 13, while if it is determined that the count value exceeds the reference value (YES in step # 14) The display control unit 104 displays an image K8 indicating a logout key 66 on the display unit 61 in place of the operation keys K1 to K6 in a predetermined display area of the display unit 61. Make (step ♯15).

  On the other hand, when the operation information indicating the change operation is accepted in step # 13 (YES in step # 13), the processes in steps # 14 and # 15 are skipped.

  As described above, in the present embodiment, in the process of operating the operation unit 6, a situation in which the user wants to operate the start key 63 or the logout key 66 but cannot recognize the presence of the keys 63 and 66 occurs. An image showing the start key 63 and the logout key 66 instead of the image of the operation keys (the operation keys K1 to K6) displayed in the predetermined display area of the display unit 61 only when it is considered that When the operation is performed on the image display area indicating the hard key, the same processing execution instruction as when the start key 63 or the logout key 66 as the hard key is operated is issued. Since the user wants to operate the start key 63 or the logout key 66, the presence of these keys 63 and 66 is confirmed. When it is considered that an unrecognized situation has occurred, an image (operation means) that exhibits the same function as the start key 63 and the logout key 66 as the hard keys can be revealed, and the user can The operability and convenience of the operation unit 6 when the start key 63 and the logout key 66 cannot be recognized quickly can be improved.

  Further, if an image showing the start key 63 or the logout key 66 is always displayed on the display unit 61, the predetermined value of the display unit 61 is displayed in order to display the image on the display unit 61. For the user who can recognize the start key 63 and the logout key 66 quickly, the operability and convenience of the operation unit 6 are impaired. there is a possibility.

  On the other hand, in the present invention, the display control unit 104 causes the display unit 61 to display an image showing the start key 63 and the logout key 66. The determination unit 103 allows the user to display the start key 63 and the logout key 66. This is limited to the case where it is determined that a situation in which the presence of the user is not recognized has occurred, so that the operability and convenience of the operation unit 6 for the user who can quickly recognize the start key 63 and the logout key 66 are impaired. Can be prevented as much as possible.

  In addition, the following modifications can be employed in this case in place of or in addition to the embodiment.

  (1) In the above embodiment, either the slide-in animation method or the pop-up method is used as a method of displaying an image indicating the start key K7 or the logout key K8 on the display unit 61. However, the user may be able to select one of these display methods.

  FIG. 7 is a block diagram showing an electrical configuration of the operation unit 6 in the present embodiment.

  As shown in FIG. 7, in the present embodiment, compared to the first embodiment, the operation unit 6 is provided with a display method selection screen display instruction unit 601 and a display method selection input unit 602. Further, the control unit 100 is mainly different in that a display method setting unit 105 is provided. Since the other points are the same as those in the first embodiment, only the differences will be described, and the description of other points will be omitted.

  The display method selection screen display instruction unit 601 and the display method selection input unit 602 are configured by at least one of the display unit 61 and the hard key unit 62 of the operation unit 6. The display method selection screen display instruction unit 601 is used to input an instruction to display the selection screen G1 (see FIG. 8) for selecting the display method on the display unit 61. The display method selection screen display instruction unit When 601 is operated, a selection screen G1 shown in FIG.

  The display method selection input unit 602 is used to input to select a display method on the selection screen G1. As shown in FIG. 8, the selection screen G1 has a pop-up key K11 for selecting a pop-up method, a slide-in key K12 for selecting the slide-in animation method, and an instruction to stop the display of the selection screen G1. A cancel key K13 for inputting and an OK key K14 for inputting an instruction to confirm the selected key among the pop-up key K11 and the slide-in key K12 are displayed. Key K11 to K14.

  The display method setting unit 105 displays the display unit 61 when it is considered that the user wants to operate the start key 63 or the logout key 66 but cannot recognize the presence of the keys 63 and 66. As a display method for displaying an image K7 indicating the start key 63 and an image K8 indicating the logout key 66 instead of the image of the operation keys (the operation keys K1 to K6) displayed in the predetermined display area. The display method corresponding to the selected key of the pop-up key K11 and the slide-in key K12 is set.

  According to this configuration, an image showing the start key 63 and the logout key 66 can be displayed by the user's favorite display method.

  (2) In the first embodiment, the determination unit 103 is measured by the counting unit 102 to determine whether or not a situation has occurred in which the user does not recognize the presence of the start key 63. Although the predetermined reference value for comparing the elapsed time with the magnitude is a fixed value, it may be set (changed) by the user.

  FIG. 9 is a block diagram showing an electrical configuration of the operation unit 6 in the present embodiment.

  As shown in FIG. 9, in the present embodiment, a reference value setting screen display instruction unit 603 and a reference value setting input unit 604 are provided in the operation unit 6 as compared with the first embodiment. Further, the control unit 100 is mainly different in that a reference value storage unit 106 is provided. Since the other points are the same as those in the first embodiment, only the differences will be described, and the description of other points will be omitted.

  The reference value setting screen display instruction unit 603 and the reference value setting input unit 604 are configured by at least one of the display unit 61 and the hard key unit 62 of the operation unit 6. The reference value setting screen display instruction unit 603 is used to input an instruction to display the setting screen G2 (see FIG. 10) for setting the reference value on the display unit 61. The reference value setting screen display instruction unit When 603 is operated, a setting screen G2 shown in FIG.

  The reference value setting input unit 604 is for inputting the reference value on the setting screen G2. As shown in FIG. 10, the setting screen G2 is used to input a time display unit Y that displays a time that is scheduled to be set as the reference value, and an increase / decrease value of the time displayed on the time display unit Y. The minus key K15 and the plus key K16, the cancel key K17 for inputting an instruction to stop the display of the setting screen G2, and the time set as the reference value are set to the time displayed on the time display unit Y. An OK key K18 for inputting a confirmation instruction is displayed, and the reference value setting input unit 604 includes these keys K15 to K18.

  The reference value storage unit 106 stores the time displayed on the time display unit Y when the OK key K18 is operated on the setting screen G2 as the reference value.

  Then, the determination unit 103 recognizes the presence of the start key 63 based on whether or not the elapsed time measured by the counting unit 102 exceeds the reference value stored in the reference value storage unit 106. It is determined whether or not a situation has occurred.

  According to this configuration, it is possible to change a criterion for determining whether or not a situation has occurred in which the user does not recognize the presence of the hard key.

1 MFP 6 Operation Unit 61 Display Unit 62 Hard Key Unit 63 Start Key 64 Ten Key 65 Function Switch Key Unit 66 Logout Key 601 Display Method Selection Screen Display Instruction Unit 602 Display Method Selection Input Unit 603 Reference Value Setting Screen Display Instruction Unit 604 Reference Value setting input unit 100 Control unit 101 Reception unit 102 Count unit 103 Judgment unit 104 Display control unit 105 Display method setting unit 106 Reference value storage unit

Claims (5)

A hard key portion including a predetermined hard key;
A display unit that has a touch panel function and displays an image showing an operation key for inputting a predetermined instruction;
A receiving unit for receiving operations on the hard key unit and the display unit;
A determination unit configured to determine whether or not a situation in which the user does not recognize the presence of the predetermined hard key is generated based on a user operation state with respect to the predetermined hard key;
The operation key currently displayed in the predetermined display area of the display unit only when the determination unit determines that a situation in which the user does not recognize the presence of the predetermined hard key has occurred A display control unit that displays an image showing the predetermined hard key instead of an image showing a predetermined operation key,
When the operation is performed on the display area of the image indicating the predetermined hard key displayed on the display unit under the control of the display control unit, the reception unit receives the predetermined hard key. An input operation device that accepts an execution instruction for the same processing as when it is operated.   The determination unit determines that the user determines the predetermined time when an elapsed time after reaching a timing at which an operation with respect to the predetermined hard key can be accepted as an appropriate operation exceeds a predetermined reference value. The input operation device according to claim 1, wherein it is determined that a situation has occurred in which the presence of the given hard key is not recognized. A reference value setting input unit for setting the predetermined reference value;
The determination unit is configured such that when the elapsed time after reaching a timing at which an operation on the hard key can be started as an appropriate operation exceeds a reference value set by the reference value setting input unit, the user The input operation device according to claim 2, wherein it is determined that a situation in which the presence of a predetermined hard key is not recognized has occurred.   The display control unit directs an image showing the predetermined hard key toward a predetermined display position from an edge of the display area of the display unit that faces the predetermined hard key. The input operation device according to any one of claims 1 to 3, wherein the input operation device is caused to slide and appear. An image showing the predetermined hard key is caused to slide toward a predetermined display position from an edge opposite to the predetermined hard key among the edges constituting the display area of the display unit. An input for selectively selecting a display mode is performed between a first display mode and a second display mode in which an image showing the predetermined hard key is displayed so as to pop out at the predetermined display position. A display mode selection input unit for
5. The input according to claim 1, wherein the display control unit causes the display unit to display an image indicating the predetermined hard key in a display mode selected by the display mode selection input unit. Operating device.

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