Display control apparatus, control method, and program

Abstract

To improve user operability of an image processing apparatus.SOLUTION: A display control apparatus includes an operation unit which receives operations from a user, and a display unit. The display control apparatus includes display control means for displaying a predetermined code on the display unit. When the predetermined code is displayed on the display unit and a key with a first attribute is operated, the control means executes first processing. When the predetermined code is displayed on the display unit and a key with a second attribute is operated, the control means executes processing to hide the predetermined code without executing second processing.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a display control device, a control method, and a program. [Background technology]

[0002] When the display unit installed in a display control device is small, the information that can be displayed on the display unit is limited. As a result, a user may refer to a paper or electronic manual to resolve any unclear points. Some display control devices are also provided with a key (two-dimensional code key) for displaying a predetermined code (hereinafter referred to as a two-dimensional code) such as a QR code (registered trademark). By receiving an operation on the two-dimensional code key from a user, a two-dimensional code that can be read by, for example, a terminal device to display the manual is displayed on the display unit. Specifically, by reading the two-dimensional code displayed on the display unit of the display control device with a terminal device equipped with a reading device such as a camera, a manual corresponding to a URL (Uniform Resource Locator) included in the two-dimensional code can be provided to the user.

[0003] Patent Document 1 discloses a technique for switching whether or not to display a two-dimensional code depending on the lighting state of a two-dimensional code key when an operation on the two-dimensional code key is received from a user. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2024-009943 Summary of the Invention [Problem to be solved by the invention]

[0005] Furthermore, Patent Document 1 discloses that when a hard key group operation is accepted while a two-dimensional code key is displayed, the screen displaying the two-dimensional code transitions to a screen before the two-dimensional code is displayed. However, depending on the key, even if the key is operated while the two-dimensional code is displayed, it may be desirable to execute a process that is executed when the key is operated when the two-dimensional code is not displayed (hereinafter, referred to as normal process). Therefore, an object of the present disclosure is to improve the user operability of an image processing device. [Means for solving the problem]

[0006] A display control device having an operation unit capable of receiving operations from a user and a display unit, comprising: a display control means for displaying a predetermined code on the display unit; and a control means for executing a first process when the predetermined code is not displayed on the display unit and a key of a first attribute included in the operation unit is operated, and executing a second process when the predetermined code is not displayed on the display unit and a key of a second attribute included in the operation unit is operated, wherein the control means executes the first process when the predetermined code is displayed on the display unit and a key of the first attribute is operated, and executes a process to hide the predetermined code without executing the second process when the predetermined code is displayed on the display unit and a key of the second attribute is operated. [Effects of the Invention]

[0007] According to the present disclosure, the user operability of an image processing device is improved. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating a system configuration and a schematic external configuration of the system. [Figure 2] FIG. 2 is a diagram showing the external configuration of an operation panel. [Figure 3] FIG. 1 is a block diagram illustrating a schematic functional configuration of an image processing device. [Figure 4] 10 is a flowchart showing light emission control and display control of a two-dimensional code key. [Figure 5] FIG. 10 is a diagram showing the operation panel when the two-dimensional code key is lit. [Figure 6] FIG. 10 is a diagram showing an operation panel on which a two-dimensional code is displayed. [Figure 7] FIG. 10 is a diagram showing the operation panel while a guide for a two-dimensional code key is being displayed. [Figure 8] 10 is a flowchart showing key control while a two-dimensional code is displayed. [Figure 9] 10 is a table showing the group assignment for each key. [Figure 10] FIG. 3 is a diagram showing the operation panel of FIG. 2 including a paper size selection key. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present disclosure will be described in detail below with reference to the drawings. Note that the following embodiments do not limit the present disclosure according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solutions of the present disclosure. In addition, in the accompanying drawings, the same reference numerals are used to designate the same or similar components, and redundant explanations will be omitted.

[0010] (First embodiment) [Display system appearance configuration] As shown in FIG. 1, the display system mainly includes an image processing device 101 as a display control device, a mobile terminal 105 as a terminal device, and a server device (computer) 106 as an information processing device that manages manual information. In this embodiment, the image processing device 101 is exemplified as a single function printer (SFP), which is a printing device. Paper sheets set in a paper feed unit 103 are transported one sheet at a time to a printing unit, where a printing process is performed to record information on the print medium using a recording material, and the paper is then ejected from a paper output tray 104. In this manner, the image processing device 101 generates a printed material on the recording medium after the printing process has been performed. The operation panel (operation unit) 102 includes at least keys, such as a touch panel including hard keys (hardware keys, physical keys) and soft keys (software keys). Note that the hard keys may be soft keys, and the operation panel 102 may be integrated with a display unit 108 as a touch panel. The display unit 108 displays various information related to the image processing device 101. The CPU 301 controls the display of information related to the image processing device 101 on the display unit 108. The operation panel 102 is capable of receiving (accepting) operations by a user, and is provided on the outer surface (casing) of the image processing device 101.

[0011] The printing device refers to a device having a printing function that records information on a print medium using a recording material. The printing method of the printing device may be electrophotographic, inkjet, or other methods. In the case of an inkjet method, the printing unit may print using ink supplied from a cartridge. Alternatively, the printing unit may print using ink stored in an ink tank provided in the inkjet recording device by refilling the ink into an ink tank instead of replacing a cartridge containing the ink. For example, the display control device may be a multi-function peripheral (MFP) that further includes a reading device that reads images on a document and functions as a copier, or may be a multi-function peripheral (MFP) that adds other functions. Furthermore, various devices, such as personal computers (PCs), smartphones, digital cameras, facsimile machines, mobile terminals, smartphones, notebook PCs, tablet terminals, PDAs, digital cameras, music playback devices, televisions, and smart speakers, may be used as the display control device of this embodiment.

[0012] The terminal device may be a variety of devices such as a smartphone, a PC, a tablet terminal, or a digital camera.

[0013] 1 further shows that the two-dimensional code displayed on the image processing device 101 is read by the mobile terminal 105, and the mobile terminal 105 accesses the manual server 106 based on the read information, thereby displaying a predetermined manual page on the screen of the mobile terminal 105.

[0014] The communication method used to connect the devices is, for example, the IEEE802.11 series communication standard (Wi-Fi) or Bluetooth (Bluetooth Classic, Bluetooth Low Energy (BLE), etc.). In the printing system of this embodiment, the devices may be directly connected, or communication between the devices may be performed via internet communication via a wireless LAN router. The devices may also communicate via mobile communication (3G, 4G, 5G).

[0015] (Operation panel) FIG. 2 is a diagram showing the appearance of the operation panel 102. As shown in FIG. 2, the operation panel 102 includes an LED 201, a power key 202, a two-dimensional code key 203, a wireless connect key 204, a home key 205, a back key 206, an LCD 207, direction keys 208, an OK key 209, a monochrome start key 210, a color start key 211, and a stop key 212. The LCD 207 and the LED 201 are included in a display device 320 (see FIG. 3), which will be described later. The LED 201 is, for example, a light-emitting element that lights up when the image processing device 101 is powered on. The power key 202, the two-dimensional code key 203, the wireless connect key 204, the home key 205, the back key 206, the direction keys 208, the OK key 209, the monochrome start key 210, the color start key 211, and the stop key 212 are included in a hard key group 319 (see FIG. 3), which will be described later. The monochrome start key 210 is a key that executes a predetermined process, such as a copy function, in monochrome (black and white ink) when pressed as the normal process (first process, second process) described above. The color start key 211 is a key that executes a predetermined process, such as a copy function, in color (black and white and color inks) when pressed as the normal process. The stop key 212 is a key that stops a predetermined process being executed in the image processing device 101 as the normal process. The LCD 207 is, for example, a liquid crystal display. The power key 202 is a key that executes a power-off (soft-off) process for the image processing device 101 as the normal process. The home key 205 is a hard key that executes a transition process to the home screen as the normal process, and the back key 206 is a hard key that executes a transition process to a history screen as the normal process. The direction keys 208 are hard keys that execute cursor movement processes and scrolling processes as the normal process, and the OK key 209 is a hard key that executes a selection confirmation process as the normal process. The two-dimensional code key 203 is a component that combines a hard key and an LED, and the hard key itself lights up or goes out. The illumination mode of the two-dimensional code key is not limited to lighting, but may also be flashing or blinking. The CPU 301, which will be described later, controls the illumination of the two-dimensional code key 203. The two-dimensional code key 203 is a hardware key used to instruct the generation of a two-dimensional code.Here, when the two-dimensional code key 203 is pressed to instruct the generation of a two-dimensional code, a two-dimensional code is generated based on the display content of the LCD 207. The lighting state of the two-dimensional code key 203 indicates whether the two-dimensional code key is valid or not; it is lit when the two-dimensional code key 203 is valid and is turned off when it is invalid. When the two-dimensional code key is valid, it means that a manual link (a manual page corresponding to the displayed screen) corresponding to the displayed screen has been set, and when the two-dimensional code key is invalid, it means that a manual link corresponding to the displayed screen has not been set. Note that a manual link can be set for each screen displayed on the LCD 207. When the two-dimensional code key 203 is lit (when the two-dimensional code key is valid), when the two-dimensional code key 203 is pressed to instruct the generation of a two-dimensional code, a two-dimensional code is generated based on the display content of the LCD 207, and the two-dimensional code is displayed on the LCD 207.

[0016] [Functional configuration of image processing device] FIG. 3 is a block diagram showing the configuration of the control system of the image processing device 101. A microprocessor-type CPU 301 operates according to the contents of a ROM-type program memory 303 and a RAM-type data memory 304, which are connected via an internal bus 302. The data memory 304 is used as a work memory 305 used by the CPU 301 when executing the control program, and as an image memory 306 for storing image data to be formed on recording paper. The CPU 301 controls an interface control circuit 307, and can receive print job data from a network-connected server 308 via an external interface and notify the server 308 of the recording device status. The CPU 301 can control various motors that drive the mechanisms of the image processing device 101 via a motor control circuit 309. A transport motor 310 drives the paper feed roller, transport roller, and paper discharge roller to transport recording paper from the paper feed unit 103 to the paper discharge tray 104. A carriage motor 311 (referred to as a CR motor in this figure) drives the carriage back and forth. The recovery motor 312 drives the head recovery mechanism and performs recovery operations to maintain the print head 314 in an appropriate state by controlling it in synchronization with the carriage drive. The CPU 301 can control the print head 314 via a head control circuit 313. Controlling the print head 314 in synchronization with the reciprocating movement of the carriage forms an image on the recording paper. The cassette sensor 316 for the paper feed unit is composed of a photointerrupter and a mechanical switch. This sensor detects when the user places or removes paper from the paper feed unit, and the CPU 301 acquires this detection via a sensor control circuit 315. The CPU 301 controls the operation panel 102, which is provided on the exterior of the image processing device 101, via a panel control circuit 317. It can display desired information on a display device 320 located on the operation panel 102 and monitor user operations on the hard keys 319 on the operation panel 102. The CPU 301 can control a scanner 325 (not shown in FIG. 1) via a scanner control circuit 324, and can read an image of a document placed on the document platen of the scanner 325.The CPU 301 can read and write various files from and to a memory card 323 inserted in a memory card slot 322 provided on the exterior of the image processing device 101 via a memory card control circuit 321. An image read by the scanner 325 can be stored in an image memory 306 in the data memory 304, and then sent to the server 308 or saved as an image file on the memory card 323. It is also possible to use the image read by the scanner 325 as a copy function by controlling the printing mechanism to print it as is.

[0017] [Image processing device operation] The image processing device 101 executes processes corresponding to various functions, but the following description will focus on the display control process of the two-dimensional code.

[0018] [2D code display processing] Figure 4 is a flowchart related to the display control of a two-dimensional code. The processing of this flowchart starts when a transition to a specific screen occurs.

[0019] First, in S401, the CPU 301 displays a screen on the LCD 207 in response to a user operation. In S402, the CPU 301 determines whether there is a manual link corresponding to the currently displayed screen. If the CPU 301 determines that there is a manual link (if the determination is YES in S402), the process proceeds to S403. If the CPU 301 determines that there is no manual link (if the determination is NO in S402), the process proceeds to S404. In S403, the CPU 301 turns on the two-dimensional code key 203 (transitioning from an off state to an on state, or if the two-dimensional code key 203 was on in the previous screen, maintaining the on state). In S404, the CPU 301 turns off the two-dimensional code key 203 (transitioning from an on state to an off state, or if the two-dimensional code key 203 was off in the previous screen, maintaining the off state). An example of the operation panel 102 with the two-dimensional code key 203 turned on is shown in FIG. 5.

[0020] In S405, the CPU 301 detects pressing of the two-dimensional code key 203 (user operation on the two-dimensional code key 203). In S406, the CPU 301 determines whether the two-dimensional code key 203 is illuminated. If the CPU 301 determines that the two-dimensional code key 203 is illuminated (if YES is determined in S406), the process proceeds to S407. If the CPU 301 determines that the two-dimensional code key 203 is illuminated (if NO is determined in S406), the process proceeds to S408. In S407, the CPU 301 performs two-dimensional code generation processing, and in S408, performs two-dimensional code display control (FIG. 6). In addition, in S409, the CPU 301 performs two-dimensional code key guide display control (FIG. 7). That is, the CPU 301 performs either two-dimensional code display control in S408 or two-dimensional code key guide display control in S409, and ends the processing of the flowchart in FIG. 4.

[0021] 5 is an example showing the operation panel 102 with the two-dimensional code key 203 lit up. The two-dimensional code key 203 is lit up because there is a manual link corresponding to the screen currently displayed on the LCD 207.

[0022] 6 shows an example of the operation panel 102 in which a two-dimensional code is being displayed on the LCD 207. For example, if the two-dimensional code key is operated in the state shown in FIG. 5, the two-dimensional code is displayed on the entire surface of the LCD 207, as shown in FIG.

[0023] 7 shows an example of the operation panel 102 while the two-dimensional code key guide is displayed, and the two-dimensional code key guide is displayed on the LCD 207. The two-dimensional code key guide displays an explanation (text information) that if the two-dimensional code key is pressed while the two-dimensional code key 203 is lit, a two-dimensional code for manual display will be displayed. Also, if a press on the two-dimensional code key is detected while the two-dimensional code key is off, information indicating that there is no valid two-dimensional code may be displayed on the LCD 207.

[0024] [Hard key control when 2D code is displayed] 8 is a flowchart showing the hard key control during the display of a two-dimensional code. The process of this flowchart starts when a predetermined screen is displayed.

[0025] First, in S801, the CPU 301 determines whether a two-dimensional code is being displayed on the LCD 207. If the CPU 301 determines that a two-dimensional code is being displayed (if the determination is YES in S801), the process proceeds to S802. If the CPU 301 determines that a two-dimensional code is not being displayed (if the determination is NO in S801), the process ends. In S802, the CPU 301 detects a press on a hard key. Specifically, the CPU 301 accepts an operation on the hard key group 319 in FIG. 3 described above. In S803, the CPU 301 determines whether the pressed hard key belongs to the first group. If the CPU 301 determines that the pressed hard key belongs to the first group (is a key with a first attribute) (if the determination is YES in S803), the process proceeds to S804. If the CPU 301 determines that the pressed hard key does not belong to the first group (is a key with a second attribute) (if the determination is NO in S803), the process proceeds to S805. In this embodiment, as will be described later with reference to FIG. 9 , the power key 202 belongs to a first group, and the other hard keys belong to a second group. In S804, the CPU 301 performs normal processing for the pressed hard key. For example, if the power key 202 is pressed while the image processing apparatus 101 is running, soft-off processing of the image processing apparatus 101 is performed. In S805, the CPU 301 performs processing to hide the two-dimensional code displayed on the LCD 207 and transition to the previous screen that displayed the two-dimensional code. For example, if the two-dimensional code key is pressed from the maintenance menu screen, the CPU 301 displays the two-dimensional code. Then, if a hard key other than the power key 202 is pressed, the CPU 301 hides the two-dimensional code and displays the maintenance menu. In other words, if a hard key that does not belong to the first group is pressed while the two-dimensional code is displayed, the CPU 301 performs processing to hide the two-dimensional code that was displayed on the LCD 207 without performing normal processing for each hard key that does not belong to the first group. In step S805, the CPU 301 executes processing to hide the two-dimensional code displayed on the LCD 207 and transition to the previous screen that displays the two-dimensional code.However, at least in step S805, the process of hiding the two-dimensional code displayed on the LCD 207 may be executed, and the process of transitioning to the previous screen may not be executed. In this case, for example, a screen different from the previous screen may be displayed on the LCD 207.

[0026] The process of determining whether each hard key belongs to the first group is performed based on a predetermined table, for example, as shown in FIG. 9. In the example shown in FIG. 9, the hard key belonging to the first group is the power key, and the keys belonging to the second group are the hard keys other than the power key. However, this is not limited to this. Hard keys other than the power key may also belong to the first group, or one or more hard keys other than the power key may belong to the first group. Furthermore, it is not necessary to manage hard key groups using a table such as that shown in FIG. 9. Alternatively, a table may be defined for each screen corresponding to a two-dimensional code, and the table to be referenced may be switched for each displayed screen. That is, by preparing multiple tables with different hard keys included in the first group and associating different tables for each screen, it is possible to switch between hard keys that perform normal processing and hard keys that perform two-dimensional code hiding processing for each screen.

[0027] 9, when the power key is pressed by the user while the two-dimensional code is displayed, a soft-off process of the image processing device 101 is executed, and when any other hard key is pressed, a process of hiding the two-dimensional code is executed. That is, a process of transitioning to the screen immediately before the screen on which the two-dimensional code is displayed is executed. Specifically, for example, even if the two-dimensional code key is pressed from the maintenance menu screen to display the two-dimensional code, and the home key 205 is pressed by the user while the two-dimensional code is displayed to hide the two-dimensional code, the maintenance menu screen, which is the screen immediately before the screen on which the two-dimensional code is displayed, is displayed without transitioning to the home screen.

[0028] In the above-described embodiment, even if a predetermined key is operated while a two-dimensional code is displayed on the display unit, if the predetermined key is a key for which a normal process corresponding to the predetermined key is desired to be executed, the normal process is executed. This improves convenience for users who desire to execute a normal process corresponding to the predetermined key. Furthermore, the user can hide the two-dimensional code without transitioning to the home screen by pressing the home key while the two-dimensional code is displayed on the display unit. In other words, it is possible to reduce confusion regarding the user's operation to hide the two-dimensional code. Furthermore, the user can hide the two-dimensional code by pressing a key that is not a hard key for transitioning the corresponding normal process screen, such as a color start key or a stop key. This makes it easier to hide the two-dimensional code, improving user operability.

[0029] In the above-described embodiment, control is performed to switch between normal processing and 2D code hiding processing for each hard key depending on whether the hard key belongs to the first group. However, switching between normal processing and 2D code hiding processing for each hard key may also be performed depending on the pressing time of the hard key pressed while the 2D code is displayed. For example, if the operation time of a first hard key is shorter than a predetermined threshold, the hard key belongs to the first group, and if the operation time of the first hard key is longer than the predetermined threshold, the hard key belongs to the second group. Note that if the operation time of the first hard key is longer than the predetermined threshold, the hard key belongs to the first group, and if the operation time of the first hard key is shorter than the predetermined threshold, the hard key belongs to the second group. Furthermore, in setting up the image processing device 101, the user may be able to set a hard key belonging to the first group (or a hard key belonging to the second group) to each group by selecting it on a predetermined setting screen. This improves convenience by allowing the user to customize which hard key will execute normal processing when pressed while the two-dimensional code is displayed, and which hard key will execute processing to hide the two-dimensional code when pressed.

[0030] In the above-described embodiment, the image processing device 101 may be provided with an audio processing unit, and when a hard key pressed while a two-dimensional code is displayed performs normal processing, a sound different from the key touch sound when a two-dimensional code hiding process is executed may be output. Alternatively, when a hard key pressed while a two-dimensional code is displayed performs two-dimensional code hiding processing, a sound different from the key touch sound when a normal processing is executed may be output. In other words, the sound when a normal processing is executed and the sound when a two-dimensional code hiding process is executed may be different so that it is possible to distinguish whether the normal processing or the two-dimensional code hiding process is being executed when a two-dimensional code is displayed on the display unit.

[0031] (Second embodiment) FIG. 10 is a diagram showing a configuration in which the operation panel 102 of FIG. 2 includes a paper size selection key 1001. When the user presses the paper size selection (setting) key 1001, the CPU 301 lights the LED 1002 indicating the paper size. Note that light emission control such as blinking or flashing may be performed instead of lighting. Specifically, when the paper size selection key 1001 is pressed, the CPU 301 lights one of the LEDs 1002, and when the paper size selection key 1001 is pressed, the CPU 301 lights an LED 1002 other than the currently lit LED 1002. In other words, the CPU 301 lights each LED 1002 indicating each paper size in a predetermined order based on the press of the paper size selection key 1001, and accepts the setting or change of the paper size setting value used in a predetermined process. In this way, the process of setting or changing the paper size setting value is the normal process when the paper size selection key 1001 is operated. In this embodiment, the paper size selection key 1001 is considered to be included in the first group in the first embodiment. In other words, when the paper size selection key 1001 is operated while a two-dimensional code is displayed, the CPU 301 executes normal processing when the paper size selection key 1001 is operated. In other words, the CPU 301 executes processing to set or change the paper size setting value. This allows the user to switch the paper size setting by pressing the paper size selection key 1001 while a two-dimensional code is displayed. Note that when the paper size selection key 1001 is operated while a two-dimensional code is displayed, the CPU 301 executes normal processing when the paper size selection key 1001 is operated while the two-dimensional code remains displayed.

[0032] In each of the above-described embodiments, a two-dimensional code has been used as an example of a code, but a two-dimensional barcode, a three-dimensional code, etc. may be used instead of a two-dimensional code, and other codes or information in other forms may be used as long as the information includes a manual link.

[0033] (Other embodiments) The above-described embodiments can also be realized by executing the following process. That is, software (programs) that realize the functions of the above-described embodiments are supplied to a system or device via a network or various storage media, and a computer (CPU, MPU, etc.) of the system or device reads and executes the program. The program may be executed by a single computer, or may be executed by multiple computers in cooperation with each other. Furthermore, it is not necessary to realize all of the above-described processes by software; some or all of the processes may be realized by hardware such as an ASIC. Furthermore, the CPU is not limited to one that performs all processes by a single CPU, and multiple CPUs may perform processes in cooperation with each other as appropriate.

[0034] Furthermore, the functions of the above-described embodiments are not only realized by a computer reading and executing the program code, but also include cases where the OS running on the computer performs some or all of the actual processing based on the instructions of the program code, thereby realizing the functions of the above-described embodiments.

[0035] The disclosure of this embodiment includes the following configuration.

[0036] (Item 1) A display control device including an operation unit capable of receiving an operation from a user and a display unit, a display control means for displaying a predetermined code on the display unit; a control means for executing a first process when the predetermined code is not displayed on the display unit and a key of a first attribute included in the operation unit is operated, and for executing a second process when the predetermined code is not displayed on the display unit and a key of a second attribute included in the operation unit is operated; Equipped with The control means executes the first process when the predetermined code is displayed on the display unit and a key of the first attribute is operated, and executes a process of hiding the predetermined code without executing the second process when the predetermined code is displayed on the display unit and a key of the second attribute is operated. A display control device comprising:

[0037] (Item 2) The display control device described in item 1 is characterized in that, when the predetermined code is displayed on the display unit and a key of the first attribute is operated, the control means executes the first processing, and when the predetermined code is displayed on the display unit and a key of the second attribute is operated, the control means hides the predetermined code without executing the second processing, and executes processing to display the screen immediately before the screen on which the predetermined code is displayed.

[0038] (Item 3) 3. The display control device according to item 1 or 2, wherein the key of the first attribute is a power key that executes a soft-off process of the display control device.

[0039] (Item 4) A display control device described in any one of items 1 to 3, characterized in that the key of the first attribute is a paper size selection key that executes a process to select paper to be used in a specified process of the display control device.

[0040] (Item 5) Item 4. The display control device according to item 4, characterized in that when the specified code is displayed on the display unit and a key of the first attribute is operated, the control means executes the first process without executing a process to hide the specified code.

[0041] (Item 6) The display control device according to any one of items 1 to 5, characterized in that the key of the second attribute is a home key that executes a process to transition from a predetermined screen displayed on the display unit to a home screen.

[0042] (Item 7) The display control device described in item 6 is characterized in that, when the specified code is displayed on the display unit and the home key is operated, the control means executes a process to hide the specified code without executing a process to transition from the specified screen to the home screen.

[0043] (Item 8) A display control device according to any one of items 1 to 7, characterized in that the key of the first attribute and the key of the second attribute are the same predetermined key, and if the operation time for the predetermined key is shorter than a predetermined threshold, the key belongs to the first attribute, and if the operation time for the predetermined key is longer than the predetermined threshold, the key belongs to the second attribute.

[0044] (Item 9) A display control device according to any one of items 1 to 7, characterized in that the key of the first attribute and the key of the second attribute are the same predetermined key, and if the operation time for the predetermined key is longer than a predetermined threshold, the key belongs to the first attribute, and if the operation time for the predetermined key is shorter than the predetermined threshold, the key belongs to the second attribute.

[0045] (Item 10) 10. The display control device according to any one of items 1 to 9, wherein the first attribute key and the second attribute key are hard keys provided on the operation unit.

[0046] (Item 11) 11. The display control device according to any one of items 1 to 10, wherein the predetermined code is displayed on the entire surface of the display unit.

[0047] (Item 12) The touch panel further includes an output unit that outputs a touch sound different from the touch sound that is output when the key of the second attribute is operated, when the key of the first attribute is operated. 12. The display control device according to any one of items 1 to 11, characterized in that:

[0048] (Item 13) A control method for a display control device including an operation unit capable of receiving an operation from a user and a display unit, a display control step of displaying a predetermined code on the display unit; a control step of executing a first process when the predetermined code is not displayed on the display unit and a key of a first attribute included in the operation unit is operated, and executing a second process when the predetermined code is not displayed on the display unit and a key of a second attribute included in the operation unit is operated; Equipped with The control step executes the first process when the predetermined code is displayed on the display unit and a key of the first attribute is operated, and executes a process of hiding the predetermined code without executing the second process when the predetermined code is displayed on the display unit and a key of the second attribute is operated. A control method comprising:

[0049] (Item 14) A computer of a display control device having an operation unit capable of receiving operations from a user and a display unit, a display control step of displaying a predetermined code on the display unit; a control step of executing a first process when the predetermined code is not displayed on the display unit and a key of a first attribute included in the operation unit is operated, and executing a second process when the predetermined code is not displayed on the display unit and a key of a second attribute included in the operation unit is operated; Execute The control step executes the first process when the predetermined code is displayed on the display unit and a key of the first attribute is operated, and executes a process of hiding the predetermined code without executing the second process when the predetermined code is displayed on the display unit and a key of the second attribute is operated. A program characterized by: [Explanation of symbols]

[0050] 101 Image processing device 102 Operation Panel 203 2D code key 207 LCD 301 CPU

Claims

1. A display control device including an operation unit capable of receiving an operation from a user and a display unit, a display control means for displaying a predetermined code on the display unit; a control means for executing a first process when the predetermined code is not displayed on the display unit and a key of a first attribute included in the operation unit is operated, and for executing a second process when the predetermined code is not displayed on the display unit and a key of a second attribute included in the operation unit is operated; Equipped with The control means executes the first process when the predetermined code is displayed on the display unit and a key of the first attribute is operated, and executes a process of hiding the predetermined code without executing the second process when the predetermined code is displayed on the display unit and a key of the second attribute is operated. A display control device comprising:

2. The display control device according to claim 1, characterized in that, when the predetermined code is displayed on the display unit and a key of the first attribute is operated, the control means executes the first processing, and when the predetermined code is displayed on the display unit and a key of the second attribute is operated, the control means hides the predetermined code without executing the second processing, and executes processing to display the screen immediately before the screen on which the predetermined code is displayed.

3. 2. The display control device according to claim 1, wherein the key of the first attribute is a power key for executing a soft-off process of the display control device.

4. 2. The display control device according to claim 1, wherein the key of the first attribute is a paper size selection key for executing a process of selecting a paper size to be used in a predetermined process of the display control device.

5. The display control device according to claim 4, characterized in that, when the specified code is displayed on the display unit and a key of the first attribute is operated, the control means executes the first process without executing a process to hide the specified code.

6. 2. The display control device according to claim 1, wherein the key of the second attribute is a home key that executes a process of transitioning from a predetermined screen displayed on the display unit to a home screen.

7. The display control device according to claim 6, characterized in that, when the predetermined code is displayed on the display unit and the home key is operated, the control means executes a process of hiding the predetermined code without executing a process of transitioning from the predetermined screen to a home screen.

8. The display control device according to claim 1, characterized in that the key of the first attribute and the key of the second attribute are the same predetermined key, and if the operation time for the predetermined key is shorter than a predetermined threshold, the key belongs to the first attribute, and if the operation time for the predetermined key is longer than the predetermined threshold, the key belongs to the second attribute.

9. The display control device according to claim 1, characterized in that the key of the first attribute and the key of the second attribute are the same predetermined key, and if the operation time for the predetermined key is longer than a predetermined threshold, the key belongs to the first attribute, and if the operation time for the predetermined key is shorter than the predetermined threshold, the key belongs to the second attribute.

10. 2. The display control device according to claim 1, wherein the first attribute key and the second attribute key are hard keys provided on the operation unit.

11. 2. The display control device according to claim 1, wherein the predetermined code is displayed on the entire surface of the display unit.

12. The touch panel further includes an output unit that outputs a touch sound, when the key of the first attribute is operated, that is different from the touch sound that is output when the key of the second attribute is operated.

2. The display control device according to claim 1.

13. A control method for a display control device including an operation unit capable of receiving an operation from a user and a display unit, a display control step of displaying a predetermined code on the display unit; a control step of executing a first process when the predetermined code is not displayed on the display unit and a key of a first attribute included in the operation unit is operated, and executing a second process when the predetermined code is not displayed on the display unit and a key of a second attribute included in the operation unit is operated; Equipped with The control step executes the first process when the predetermined code is displayed on the display unit and a key of the first attribute is operated, and executes a process of hiding the predetermined code without executing the second process when the predetermined code is displayed on the display unit and a key of the second attribute is operated. A control method comprising:

14. A computer of a display control device having an operation unit capable of receiving operations from a user and a display unit, a display control step of displaying a predetermined code on the display unit; a control step of executing a first process when the predetermined code is not displayed on the display unit and a key of a first attribute included in the operation unit is operated, and executing a second process when the predetermined code is not displayed on the display unit and a key of a second attribute included in the operation unit is operated; Execute The control step executes the first process when the predetermined code is displayed on the display unit and a key of the first attribute is operated, and executes a process of hiding the predetermined code without executing the second process when the predetermined code is displayed on the display unit and a key of the second attribute is operated. A program characterized by:

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