JP2020011425A - Image formation device, display control method and program - Google Patents

Abstract

To provide screen display with excellent operability depending on a screen size and a resolution in a display of an image formation device while suppressing development cost.SOLUTION: An image formation device includes: acquisition means for acquiring display information indicating at least one of a size and a resolution of a display of the image formation device; generation means for generating screens of which number is corresponding to the display information; and display control means for controlling so as to display the screens generated by the generation means on the display.SELECTED DRAWING: Figure 10

Description

  The present invention relates to an image forming apparatus, a display control method, and a program.

  2. Description of the Related Art Conventionally, there are image forming apparatuses having different display screen sizes and resolutions. If the display screen of the application is displayed on an operation panel having an inch size smaller than the assumed inch size, the screen becomes small and is difficult to see. In addition, when the display screen of the application is displayed on a display having a lower resolution than the assumed resolution, the screen is lost.

  The following techniques are known as techniques for solving such a problem. To solve the problem of display size, it is possible to provide an easy-to-read user interface by changing the layout according to the display size by combining HTML and CSS style sheets as known from Web pages. Here, the layout includes the size and arrangement of screens, buttons, lists, and the like, and also includes a screen configuration in which a large size fits on one page, and a small size allows scrolling down the screen with a scroll bar of a Web browser.

  For the problem of display resolution, there is a property called devicePixelRatio as a WebKit technology. From the value of devicePixelRatio, you can know how many dots on the display will display 1px of the Web site. As the display type, for example, a devicePixelRatio value is defined for iPhone (registered trademark) 3GS, iPad (registered trademark), iPad2, and a plurality of Android terminals. For example, when the devicePixelRatio is 1, a normal CSS style sheet is read, an image of a described normal size is read, and each component is scaled by the normal size. On the other hand, if the devicePixelRatio is 1.5, load another CSS style sheet and load an image 1.5 times different from the described normal size, or scale each component to 1.5 times the normal size. I do.

  Patent Document 1 discloses a mechanism for transmitting HTML content according to the resolution of a television terminal from a center. If there is no HTML content having an optimal resolution for the television terminal, the HTML content is divided into two screens and transmitted. A technique for performing this is disclosed.

JP-A-10-133933

  In an image forming apparatus having a different screen size and resolution of a display, a display corresponding to the screen size and resolution can be performed by developing an application suitable for the screen size and resolution. However, in this case, double or triple development is required.

  SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and has as its object to realize a screen display with good operability according to a screen size and resolution on a display of an image forming apparatus while suppressing development costs.

  Therefore, the present invention is an image forming apparatus, comprising: an obtaining unit that obtains display information indicating at least one of a size and a resolution of a display of the image forming apparatus, and generates a number of screens according to the display information. It is characterized by comprising a generation unit, and a display control unit that controls display of the screen generated by the generation unit on the display.

  According to the present invention, it is possible to realize a screen display with good operability according to the screen size and resolution on the display of the image forming apparatus while suppressing development costs.

FIG. 1 is a diagram illustrating a network system to which an image forming apparatus is connected. FIG. 2 is a hardware configuration diagram of the image forming apparatus. FIG. 2 is a functional configuration diagram of the image forming apparatus. It is a figure showing an example of a screen design. It is a figure showing an example of a screen design. It is a block diagram of a class. It is a figure showing an example of a screen design. It is a figure showing an example of a screen design. It is a block diagram of a class. It is a flowchart which shows a screen display process. It is a flowchart which shows a screen switching process. It is a figure showing an example of a screen. 9 is a flowchart illustrating a screen switching process according to the second embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a diagram illustrating a network system to which the image forming apparatuses 100a and 100b are connected. In the example of FIG. 1, the image forming apparatuses 100a and 100b are connected to a personal computer (PC) 200 via a network 210. The PC 200 is a terminal into which a user submits a print job. Although two image forming apparatuses 100a and 100b are shown in the illustrated example, more image forming apparatuses may be connected to the network 210.

  FIG. 2 is a hardware configuration diagram of the image forming apparatus 100a. A CPU 111, a RAM 112, a ROM 113, an input control unit 114, a display control unit 115, an external memory I / F 116, and a communication I / F controller 117 are connected to the system bus 110. Further, a touch panel 118, a display 119, and an external memory 120 are connected. The units connected to the system bus 110 can exchange data with each other via the system bus 110.

  The ROM 113 is a non-volatile memory in which image data and other data, various programs for operating the CPU 111, and the like are stored in predetermined areas. The RAM 112 is a volatile memory and is used as a temporary storage area such as a main memory of the CPU 111 and a work area. The CPU 111 controls each unit of the image forming apparatus 100a using the RAM 112 as a work memory according to a program stored in the ROM 113 or the external memory 120. The functions and processes of the image forming apparatus 100a described later are realized by the CPU 111 reading out a program stored in the ROM 113 or the like and executing the program.

  The input control unit 114 receives a user operation, generates a control signal according to the operation, and supplies the control signal to the CPU 111. The touch panel 118 is, for example, an input device configured to output coordinate information corresponding to a position touched on an input unit configured in a planar manner.

  The display control unit 115 outputs a display signal for causing the display 119 to display an image. The CPU 111 supplies a display control signal generated according to a program to the display control unit 115. The display control unit 115 causes the display 119 to display a GUI screen that forms a GUI (Graphical User Interface) based on the display control signal. Further, the display control unit 115 can acquire the size and resolution of the display 119. The touch panel 118 is formed integrally with the display 119. The touch panel 118 is configured so that light transmittance does not hinder display on the display 119, and is attached to an upper layer of a display surface of the display 119. Then, CPU 111 associates the input coordinates on touch panel 118 with the display coordinates on display 119. This makes it possible to configure a GUI as if the user could directly operate the screen displayed on the display 119.

  An external memory 120 such as a hard disk, a flexible disk, a CD, a DVD, or a memory card can be mounted on the external memory I / F 116. Under the control of the CPU 111, data is read from the attached external memory 120 and data is written to the external memory 120. The communication I / F controller 117 performs communication with the network 210 based on the control of the CPU 111.

  Note that the hardware configuration of the image forming apparatus 100b is the same as the hardware configuration of the image forming apparatus 100a. However, the size and resolution of the display 119 of the image forming apparatus 100b are different from the size and resolution of the display 119 of the image forming apparatus 100a. In the present embodiment, the size of the display of the image forming apparatus 100a is 10 inches, and the resolution of the display is SVGA. The size of the display of the image forming apparatus 100b is 7 inches, and the resolution of the display is VGA.

  On the display 119 of each of the image forming apparatuses 100a and 100b, a screen on which buttons, texts, lists, and the like are arranged is displayed. Hereinafter, contents displayed on the screen, such as buttons, texts, and lists, will be referred to as components.

  FIG. 3 is a functional configuration diagram of the image forming apparatus 100a. The application unit 300 includes applications 301 to 303 and an application control unit 310. The applications 301 to 303 are software having a user interface having processing functions such as copying, printing, and scanning. Note that the number of applications included in the application unit 300 is not limited to the embodiment. The application unit 300 can additionally install an application for transmitting an e-mail and transmitting and receiving a fax. The application control unit 310 manages these applications 301 to 303. The application control unit 310 performs window management for switching display of an application, for example. The application control unit 310 also displays the highest application on the display 119 via the display control unit 115. The application control unit 310 has a role of centrally managing common processing necessary for each application such as acquiring display information indicating the size and resolution of the display 119 via the display control unit 115. Note that the functional configuration of the image forming apparatus 100b is the same as the functional configuration of the image forming apparatus 100a.

  4 and 5 are diagrams illustrating an example of a screen design of the applications 301 to 303. Screens 400 and 410 shown in FIG. 4 are copy color selection screens. Screen 400 is assumed to be installed in image forming apparatus 100a having resolution SVGA and 10-inch display 119, and is optimally designed to match its size and resolution. On the other hand, it is assumed that the screen 410 is installed in the image forming apparatus 100b including the display 119 having a resolution of VGA and 7 inches, and is optimally designed to match the size and the resolution. The screen 400 and the screen 410 are screens displayed as one screen on the display 119, respectively. Although the number of components included in the screen 400 and the screen 410 is equal, the size and arrangement of the components are different.

  Screens 500 and 510 shown in FIG. 5 are copy density adjustment screens. The screen 500 is optimally designed to fit the resolution SVGA and the 10-inch display 119. Screen 510 is optimally designed to fit VGA, 7 inch display 119. The screen 500 and the screen 510 are each a screen displayed on the display 119 as one screen. In addition to the difference in the size and arrangement of the components included in the screen 500 and the screen 510, there are components, such as a button 521, that exist in the screen 500 but do not exist in the screen 510.

  FIG. 6 is a configuration diagram of a class for dynamically generating and displaying a screen suitable for each of a plurality of displays having different resolutions in one application. With this class configuration, it is possible to provide a screen suitable for each of displays having different sizes and resolutions as described with reference to FIGS. 4 and 5. The class configuration 600 is a minimum configuration for displaying one screen of the applications 301 to 303 like the screens 400 and 410 and the screens 500 and 510.

  The component definition class 601 includes IDs of all components included in the screen, such as an OK button, a cancel button, a full color button, an automatic button, and the like, which are present on both a 10-inch screen 400 of SVGA and a 7-inch screen 410 of VGA. Is defined. Here, the screen 400 and the screen 410 are each one screen as described with reference to FIG. 4, and the number of components and the identification ID in each screen are all the same. If the ID is the same for both screens, only one is defined without duplication. On the other hand, the screen 500 and the screen 510 partially include a button 521 that exists only in the screen 500 and the like. In this case, components having the same identification ID in the screen 500 and the screen 510 are defined so as not to overlap, and in addition, the identification ID of the component 521 is also defined. This component definition class 601 describes only the definition of each component, and does not describe the size and arrangement of each component.

  The logic class 602 refers to the component definition class 601, and describes switching of display of each component defined in the component definition class 601 and processing when each component is pressed by a user. In other words, the logic class 602 cannot describe display switching for a component that is not defined in the component definition class 601 or describe processing in which an undefined component is pressed. The description target of the logic class 602 needs to be defined in the component definition class 601 without fail.

  In the SVGA screen configuration class 603 and the VGA screen configuration class 604, the size and arrangement of each component defined in the component definition class 601 are defined. The screen configuration of the SVGA 10-inch screen 400 shown in FIG. 4 is defined in the screen configuration class 603. The screen configuration of the VGA 7-inch screen 410 is defined in a screen configuration class 604.

  The screen configuration of the SVGA 10-inch screen 500 is similarly defined in the screen configuration class 603. The screen configuration class 603 also defines the size and arrangement information of the component 521 that does not exist on the screen 510. The screen configuration class 604 does not define the size and arrangement information of the component 621. One screen is composed of the classes 601 to 604 as described above.

  FIG. 7 is a diagram illustrating an example of a screen design of the applications 301 to 303. A screen 700 shown in FIG. 7A and screens 710 and 720 shown in FIG. 7B are both copy page print setting screens. The page printing is a function of printing a page number on a copy output, and a position, a color, and the like at which the page number is printed can be set. The screen 700 is designed to match the size and resolution of the screen 700, assuming that the screen 700 is installed in the image forming apparatus 100a including the display 119 having a 10-inch display 119. On the other hand, the screens 710 and 720 are designed to be installed in the image forming apparatus 100b having the resolution VGA and the 7-inch display 119, and are designed to match the size and resolution.

  The screen 700 is one screen, and the screens 710 and 720 are obtained by converting the screen 700 into two screens. If it does not fit within one screen due to the screen size and resolution, it is designed into two screens based on certain rules. The certain rules include conditions such as lowering the character height and reducing accessibility by fitting them on one screen, having no gaps between components such as buttons and text, and leading to erroneous operation. When the condition is satisfied, two screens are created. In these cases, a scroll screen such as a Web page may lead to an erroneous operation of erroneously touching a button that extends over a page. Therefore, the screen is basically divided into two screens. Furthermore, when switching to two screens, the contents are grouped so that usability is not impaired.

  For example, in the SVGA screen 700, the page print position setting 701 corresponds to the VGA screen 710, and in the SVGA screen 700, the page print content setting 702 corresponds to the VGA screen 720. In order to switch between the first screen 710 and the second screen 720 of the VGA, a next button 711 is provided on the first screen 710 of the VGA, and a return button 721 is provided on the second screen 720. Have been. Except for the next button 711 and the return button 721, the identification ID of the number of components is the same except for the title words 703, 712, and 722 of each screen, and the sizes and arrangements are different.

  FIG. 8 is a diagram illustrating an example of a screen design of the applications 301 to 303. The screen design shown in FIG. 8 has a different pattern from the screen design shown in FIG. The SVGA screen 800 and the VGA screens 810 and 820 are address book screens displayed when a destination is set with the e-mail transmission and fax transmission / reception functions. The screen 800 is designed to be installed in the image forming apparatus 100a having the resolution SVGA and the 10-inch display 119, and is designed to match the size and the resolution. The screens 810 and 820 are designed to be installed in the image forming apparatus 100b having the resolution VGA and the 7-inch display 119, and are designed to match the size and resolution.

  In the example of FIG. 8, unlike the example of FIG. 7, there are only a few components to be displayed on the second screen of the VGA, and it is difficult to represent the two screens using the entire screen. In this case, the second screen is a screen smaller than the first screen. In this case, the first screen is called a parent screen, and the second screen is called a child screen. Further, in this case, as shown in FIG. 8, a child screen 820 in which components are located on the parent screen 810 of the VGA is displayed in a superimposed manner.

  In the example of FIG. 8, among the components included in the SVGA screen 800, the detailed information button 801 and the registration / edit button 802 cannot be included in one screen. Therefore, a detailed information button 821 corresponding to the detailed information button 801 and a registration / edit button 822 corresponding to the registration / edit button 802 are arranged on the child screen 820 of the VGA. A close button 823 for closing the child screen 820 is further arranged on the child screen 820.

  Further, when the VGA child screen 820 is displayed, a light gray component 824 covering the entire screen is set between the screen 810 and the child screen 820 so that the screen 810 displayed on the back side is not erroneously operated. . Except for the registration / others button 811 and the close button 823, the number of components and the identification ID for identifying them are all the same, and the sizes and arrangements are different.

  FIG. 9 is a configuration diagram of a class for generating a number of screens according to the screen size, such as one screen in SVGA and two screens in VGA. The class configuration 900 represents a minimum configuration of one screen in SVGA and two screens in VGA among the applications 301 to 303. That is, the class configuration 900 is a minimum configuration for displaying the SVGA screen 700 and the VGA screens 710 and 720 and the SVGA screen 800 and the VGA screens 810 and 820.

  For example, in the case of the page print screen shown in FIG. 7, all common parts such as an OK button, a cancel button, a pull-down list for setting a print color, and the like included in the screen 700 and the screens 710 and 720 are included in the component definition class 901. The identification ID of the component is defined. The component definition class 901 further defines a next button 711 and a return button 721 that exist only in the VGA screens 710 and 720.

  As described with reference to FIG. 7, the screen 700 and the screens 710 and 720 have different screen units between the first screen and the two screens, but the screen buttons other than the next button 711, the back button 721, and the title texts 703 712 722 The number of components and the ID are all the same. Therefore, if the identification ID defined in the component definition class 901 is the same in both screens, only one is defined without duplication. The component definition class 901 describes only the definition of each component, and does not describe the size and arrangement of each component.

  The logic class 902 is basically the same as the logic class 602 in FIG. In the logic class 902, processing of a next button 711 for calling the VGA screen 720 and a return button 721 for returning from the VGA screen 720 to the screen 710 are implemented. These processes will be described with reference to FIGS.

  Next, the SVGA screen configuration class 903, the first VGA screen configuration class 904, and the second VGA screen configuration class 905 will be described. This is basically the same as the SVGA screen configuration class 603 and the VGA screen configuration class 604 described with reference to FIG. The size and arrangement of the SVGA screen 700 in FIG. 7 are defined in the SVGA screen configuration class 903. The sizes and arrangements of the VGA screens 710 and 720 are defined in a first VGA screen configuration class 904 and a second VGA screen configuration class 905, respectively. With the classes 901 to 905 as described above, one screen is constituted by SVGA and two screens are constituted by VGA. The arrangement of components common to the VGA screen and the SVGA screen may be different from each other. This makes it possible to generate a screen that is easy for the user to see, according to the resolution and the like.

  When displaying a screen, the image forming apparatuses 100a and 100b change any one of the screen configuration classes 903 to 905 according to the resolution of the display 119 of the own apparatus by the processing described with reference to FIGS. Enable and display.

  In the present embodiment, the VGA screen configuration class is only two screens. However, for example, one VGA screen may be changed to three screens or four screens for one screen of SVGA. In this case, the number of screen configuration classes increases according to the number of screens.

  FIG. 10 is a flowchart illustrating a screen display process performed by the image forming apparatuses 100a and 100b. By this processing, a screen corresponding to the class configuration 600 shown in FIG. 6 or the class configuration 900 shown in FIG. 9 is displayed. In step S1000, the application 301 acquires display information including the resolution and the screen size of the display 119 from the display 119 via the application control unit 310 and the display control unit 115. Next, in step S1001, the application 301 determines the resolution acquired in step S100. If the resolution is SVGA, the application 301 advances the processing to S1002. If the resolution is VGA, the application 301 advances the processing to S1003.

  In step S1002, the application 301 generates an SVGA screen. For example, when the screen to be displayed corresponds to the class configuration 600 shown in FIG. 6, the application 301 generates instances of the component definition class 601, the logic class 602, and the SVGA screen configuration class 603 in FIG. . Further, for example, when the screen to be displayed corresponds to the class configuration 900 shown in FIG. 9, the application 301 is an instance of the component definition class 901, the logic class 902, and the SVGA screen configuration class 903 shown in FIG. Generate After the processing in S1002, the application 301 advances the processing to S1007.

  In step S1003, the application 301 determines whether the VGA screen has a two-screen configuration. Whether or not the screen has two screens can be determined by referring to the class structure of the screen to be displayed. If the application 301 determines that the screen does not have a two-screen configuration (NO in step S1003), the processing proceeds to step S1004. If it is determined that the application 301 has a two-screen configuration (YES in step S1003), the processing proceeds to step S1005. In step S1004, the application 301 generates a VGA screen. For example, when the screen to be displayed corresponds to the class configuration 600 shown in FIG. 6, the application 301 generates instances of the component definition class 601, the logic class 602, and the VGA screen configuration class 604 of FIG. .

  In step S1005, the application 301 generates a second VGA screen. Next, in step S1006, the application 301 generates the first VGA screen. For example, if the screen to be displayed corresponds to the class configuration 900 shown in FIG. 9, the application 301 determines in step S <b> 1005 the component definition class 901, the logic class 902, and the second VGA screen configuration class 905 in FIG. 9. Create an instance. Further, in step S1006, the application 301 generates instances of the component definition class 901, the logic class 902, and the first VGA screen configuration class 904 in FIG. As described above, the second screen of the VGA is generated first, the first screen of the VGA is generated later, and is superimposed on the second screen, so that the first screen is displayed first when a new screen is displayed. become.

  When the second screen of the VGA is generated, a gray component 824 of FIG. 8 having the same size as the first screen is arranged on the first screen of the VGA, and the second screen is arranged thereon. Thus, for example, as shown in FIG. 8, when the second screen is smaller than the first screen, it is possible to make the first screen inoperable, and when the second screen is the same size as the first screen, Means that the component 824 cannot be seen. After the processing in S1006, the application 301 advances the processing to S1007. In step S1007, the application 301 controls the display 119 via the application control unit 310 and the display control unit 115 to display the generated screen. Thus, the screen display processing is completed. Note that the process of S1007 is an example of a display control process.

  FIG. 11 is a flowchart illustrating a screen switching process performed by the image forming apparatuses 100a and 100b. The screen switching process is a process executed when one screen of a two-screen configuration is displayed. The screen switching process is executed, for example, when one of the screens 710 and 720 in FIG. 7 is displayed and a button for calling the other screen is pressed.

  In step S1100, the application 301 determines whether the pressed button is a button for calling the second screen of the VGA. If the application 301 determines that the button is a button for calling the second screen (YES in S1100), the process proceeds to S1101. The process proceeds to step S1101 when the first screen is displayed. When the button for calling the second screen is pressed, the application 301 receives a screen display switching instruction according to the button press. Then, the application 301 performs the processes in and after S1101 according to the switching instruction. If the application 301 determines that the button is not a button for calling the second screen (NO in S1100), the process proceeds to S1103. In step S1101, the application 301 sets the first screen of the VGA to the bottom. Next, in step S1102, the application 301 sets the second screen of the VGA to the foreground. After the processing in S1102, the application 301 advances the processing to S1106.

  In step S1103, the application 301 determines whether the pressed button is a button for calling the first screen of the VGA. If the application 301 determines that the button is a button for calling the first screen (YES in S1103), the process proceeds to S1104. The process proceeds to step S1104 when the second screen is displayed. When the button for calling the first screen is pressed, the application 301 receives a screen display switching instruction according to the button press. Then, the application 301 performs the processing after S1104 according to the switching instruction. In step S1104, the application 301 sets the second screen of the VGA to the bottom. Next, in step S1105, the application 301 sets the first surface of the VGA to the foreground. After the processing of S1105, the application 301 advances the processing to S1106. In step S1106, the application 301 controls the display 119 to display the display-set screen on the display 119 via the application control unit 310 and the display control unit 115.

  If the application 301 determines in step S1103 that the button is not a button for calling the first screen (NO in step S1103), the processing proceeds to step S1107. The case where neither the button for calling the first screen nor the button for calling the second screen is the case where the pressed button is a button for calling another new screen. In this case, in S1107, the application 301 performs a process of calling a new screen. The process of S1107 is the screen display process described with reference to FIG.

  In the present embodiment, a class corresponding to the resolution, such as the SVGA screen configuration class and the VGA screen configuration class, is defined. However, the present invention is not limited to this. May be defined. This makes it possible to generate a screen according to the screen size as well as the resolution. That is, the application 301 can generate and display a number of screens corresponding to at least one of the resolution and the size of the display of the image forming apparatus to be installed.

  In addition, while realizing a different screen configuration for each image forming apparatus, processing of most components forming the screen is common in the logic class. Therefore, development costs can be reduced. Further, the application can apply a screen that does not impair accessibility and usability according to the size and resolution of the display of the image forming apparatus to be installed. As described above, according to the present embodiment, a screen display with good operability according to the screen size and resolution can be realized on the display of the image forming apparatus while suppressing development costs.

  As a first modified example of the embodiment, the application may determine the number of screens to be generated according to the number of components to be displayed. That is, the application may generate not only two screens but also three screens or four screens according to the number of components.

  As a second modification, when a parent screen and a child screen are generated, the size of the child screen may be determined according to the number of contents included in the child screen. This allows the application to generate and display a child screen having a size corresponding to the number of contents.

(Second embodiment)
Next, differences between the image forming apparatuses 100a and 100b according to the second embodiment and the image forming apparatuses according to the first embodiment will be mainly described. In the second embodiment, the application 301 displays an error message on a screen when a plurality of screens are generated and the screen to be displayed cannot be used due to functional restrictions.

  For example, FIG. 12A shows a first screen 710 in the case of a two-screen display. Screen 710 is the same as screen 710 shown in FIG. When the next button 711 is pressed on the screen 710, a second screen 720 is displayed as shown in FIG. However, an error message 1200 is superimposed on the screen 720. This restricts the use of buttons and the like on the second screen. In this case, the user selects whether to cancel the setting with the cancel button 723, return to the first screen 710 with the return button 721, or reflect the first setting with the OK button 722.

  FIG. 13 is a flowchart illustrating a screen switching process performed by the image forming apparatuses 100a and 100b. It is a flowchart of a display restriction process according to the second embodiment. In step S1300, the application 301 determines whether the pressed button is a button for calling the second screen of the VGA. If the application 301 determines that the button is a button for calling the second screen (YES in S1300), the process proceeds to S1301. If the application 301 determines that the button is not a button for calling the second screen (NO in S1300), the process proceeds to S1306.

  In step S1301, the application 301 sets the first screen of the VGA to the bottom. Next, in S1302, the second screen of the VGA is set to the foreground. Note that the processing in S1301 and S1302 is the same as the processing in S1101 and S1102 described with reference to FIG. Next, in step S1303, the application 301 performs a restriction check on the second screen of the VGA. The restriction check referred to here is, for example, a check as to whether or not the use is restricted, for example, a function that can be set is restricted by the authentication information of the use user, a state where the image forming apparatus cannot be used due to its capability, and the like. It is.

  If there is a restriction on the second screen (YES in S1304), application 301 advances the process to S1305. If there is no restriction on the second screen (NO in S1304), the application 301 advances the processing to S1309. In S1305, the application 301 superimposes and displays an error message on the second screen of the VGA2. Next, in step S1309, the application 301 controls the display 119 to display the screen on which display has been set, via the application control unit 310 and the display control unit 115.

  In step S1306, the application 301 determines whether the pressed button is a button for calling the first screen of the VGA. If the application 301 determines that the button is a button for calling the first screen (YES in S1306), the process proceeds to S1307. If the application 301 determines that the button is not a button for calling the first screen, that is, if it is a button for calling a new screen (NO in S1306), the process proceeds to S1310. Note that the processing of S1307 and S1308 is the same as the processing of S1104 and S1105 described with reference to FIG. Further, the processing of S1310 is the same as the processing of S1107.

  As described above, in the second embodiment, the setting of the application can be restricted when the second screen cannot be used due to a function restriction or the like. Also, in this case, an error message is displayed, so that the user can know that the service cannot be used.

  As a modified example, the application checks the function restrictions on the second screen at the stage of displaying the first screen, and if there is a restriction, prevents the display button for displaying the second screen from being pressed. Alternatively, the display button may be hidden. As described above, the application only needs to restrict the display of the screen according to the function restriction, and specific processing for that purpose is not limited to the embodiment.

  As described above, the preferred embodiments of the present invention have been described in detail, but the present invention is not limited to the specific embodiments, and various modifications may be made within the scope of the present invention described in the appended claims.・ Change is possible.

  The present invention supplies a program for realizing one or more functions of the above-described embodiments to a system or an apparatus via a network or a storage medium, and one or more processors in a computer of the system or the apparatus read and execute the program. This processing can be realized. Further, it can also be realized by a circuit (for example, an ASIC) that realizes one or more functions.

100a, 100b Image forming apparatus 115 Display control unit 119 Display 301 Application 310 Application control unit

Claims (9)

An image forming apparatus,
Acquisition means for acquiring display information indicating at least one of the size and resolution of the display of the image forming apparatus,
Generating means for generating a number of screens according to the display information,
An image forming apparatus comprising: a display control unit configured to control display of the screen generated by the generation unit on the display.   2. The display control unit according to claim 1, wherein when the generation unit generates a plurality of screens, the display control unit displays one of the plurality of screens and switches the screen according to a switching instruction. Image forming device.   2. The display control unit according to claim 1, wherein, when a plurality of images are generated by the generation unit, a plurality of screens are displayed in a superimposed manner, and a foreground screen is switched according to a switching instruction. Image forming apparatus.   4. The image forming apparatus according to claim 1, wherein when generating a plurality of screens, the generating unit generates a screen having a size corresponding to the number of contents. 5.   4. The image forming apparatus according to claim 1, wherein the generation unit further generates a number of screens according to a number of contents to be displayed. 5.   The image forming apparatus according to claim 1, wherein the generation unit changes the arrangement of the contents according to the number of screens to be generated.   The image forming apparatus according to claim 1, wherein the display control unit restricts display of a screen according to a function restriction in the image forming apparatus. A display control method executed by an image forming apparatus,
Acquisition step of acquiring display information indicating at least one of the size and resolution of the display of the image forming apparatus,
Generating a number of screens according to the display information,
A display control step of controlling the screen generated in the generation step to be displayed on the display.   A program for causing a computer to function as each unit of the image forming apparatus according to claim 1.

Images