JP2013143025A - Image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image forming device that improves input operability, and further prevents a user from being confused.SOLUTION: An image forming device 100 comprises a touch panel display 182, and a controller 110 for controlling operations of the device itself in response to an input from the touch panel display 182. The touch panel display 182 displays a virtual numeric keypad 200 including a plurality of numeric keys 210. The virtual numeric keypad 200 includes a "00" key 230. The image forming device 100 determines whether an input using the "00" key 230 can be performed, and, if it is determined that the input using the "00" key 230 can be performed, displays the "00" key 230 such that an input operation thereof can be performed (step S1030), or, if it is determined that the input using the "00" key 230 cannot be performed, configures the "00" key 230 disabled such that the input operation thereof cannot be performed (step S1020).

Description

  The present invention relates to an image forming apparatus, and more particularly to an image forming apparatus having an input function for inputting numerical values (numeric characters).

  As one type of information equipment, an image forming apparatus (typically a copier) is installed in many offices (company, office, etc.). In such offices, there are many cases where an image forming apparatus having a print function or a copy function is connected to a network and used by a plurality of users. Further, like a multifunction peripheral (MFP (Multifunction Peripheral)) which is one of such image forming apparatuses, a copy mode, an image communication mode (typically a facsimile mode), a network compatible print mode, and a scanner mode. In many cases, a plurality of modes have a plurality of modes.

  In an image forming apparatus, there are many opportunities to input numerical values such as the number of copies. Therefore, in order to facilitate the input of numerical values, the image forming apparatus may include a numeric keypad including a plurality of numeric keys. Conventionally, a numeric keypad having a “00” key and a “000” key is known in order to reduce the number of key inputs. Patent Documents 1 to 3 listed below disclose such a numeric keypad.

JP 57-94835 A JP-A-1-177626 JP-A-3-105411

  Like the numeric keys described in Patent Document 1 to Patent Document 3, by providing a “00” key and a “000” key, the numerical value input operation is improved. However, when it is not necessary to use the “00” key and the “000” key, if these keys are provided, the user may be confused and the operability of key input may be reduced.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to provide an image forming apparatus that can improve an input operation and prevent user confusion. is there.

  In order to achieve the above object, an image forming apparatus according to a first aspect of the present invention includes a touch panel display, a control unit for controlling the operation of the device according to an input from the touch panel display, Display control means for performing control to display a key group including numeric keys on a touch panel display. The key group further includes a specific key for inputting a specific number of digits, and the display control means determines whether or not the input using the specific key is possible in the numerical value input using the key group. The determination unit includes a switching unit for switching the specific key to either the state where the input operation is possible or the state where the input operation is not possible, according to the determination result of the determination unit.

  A key group including the specific key is displayed on the touch panel display, and when the input using the specific key is impossible in the numerical value input using the key group, the specific key is switched to the state in which the input operation is not possible. When input operation is not possible, key input is not possible even if a specific key is touched. Therefore, user confusion can be prevented. On the other hand, when input using a specific key is possible, the specific key is switched to a state in which an input operation can be performed. Since the specific key can input a plurality of digits, it is possible to input a plurality of digits by a single input operation by operating the specific key. By inputting a numerical value using a specific key, the number of key inputs can be reduced, and the input operation can be improved. In particular, an image forming apparatus capable of high-speed printing has a large input numerical value for the number of prints that can be set. Greatly contributes to improved operation.

  Preferably, the determination unit includes a unit for determining whether or not a maximum value that can be input by an input of a specific key is exceeded, and the switching unit is determined to exceed a maximum value that can be input by an input of the specific key. In this case, the input operation of the specific key is disabled, and when it is determined that the maximum value that can be input by the input of the specific key is not exceeded, the input operation of the specific key is enabled.

  Thereby, it can be easily determined whether or not an input using a specific key is possible. Therefore, user confusion can be easily prevented. In addition, when input using a specific key is possible, the number of times of key input can be reduced by inputting a numerical value using the specific key by making the specific key ready for input operation. Therefore, input operation can be improved effectively.

  More preferably, the determination means and the first means for determining whether or not the maximum number of digits that can be input by the input of the specific key exceeds the maximum value that can be input by the input of the specific key. The switching means is determined by the first means to exceed the maximum number of digits that can be input by the input of the specific key, or the specific key is determined by the first means. When it is determined that the maximum number of digits that can be input is not exceeded by the input of, and when it is determined by the second means that the maximum value that can be input by the input of the specific key is determined, the specific key is input. When the second means determines that the maximum value that can be input by the input of the specific key is not exceeded, the specific key is set to a state in which an input operation can be performed.

  If the maximum number of digits that can be input by the input of the specific key is exceeded, input using the specific key cannot be performed. In this case, the input operation of the specific key is disabled. Even if the maximum number of digits that can be input by the input of the specific key does not exceed the maximum value that can be input by the input of the specific key, the input using the specific key cannot be performed. Therefore, in this case as well, the specific key is set in a state where input operation is not possible. On the other hand, if the maximum value that can be input by the input of the specific key does not exceed, the input using the specific key is possible. In this case, the specific key is set in a state where the input operation is possible. As a result, it is possible to easily determine whether or not input using a specific key is possible, and according to the determination result, the specific key is switched to either a state where input operation is possible or a state where input operation is not possible. Can do. Therefore, user confusion can be easily prevented. In addition, when input using a specific key is possible, the number of times of key input can be reduced by inputting a numerical value using the specific key by making the specific key ready for input operation. Therefore, input operation can be improved effectively.

  More preferably, when the input operation of the specific key is switched to the disabled state, the image forming apparatus notifies the user that the input operation using the specific key cannot be performed in response to the user pressing the specific key. It further includes a notification means for displaying a notification screen on the touch panel display.

  When the user presses the specific key when the input operation is switched to a disabled state, a notification screen is displayed to notify that the input operation using the specific key cannot be performed. Therefore, the user can easily recognize that the input operation using the specific key cannot be performed.

  An image forming apparatus according to a second aspect of the present invention includes a touch panel display, a control unit for controlling the operation of the device according to an input from the touch panel display, and a key group including a plurality of numeric keys. Display control means for performing control to be displayed on the display. The key group further includes a specific key for inputting a specific number of digits, and the display control means determines whether or not the input using the specific key is possible in the numerical value input using the key group. A determination unit and a switching unit for switching between display and non-display of the specific key according to the determination result of the determination unit.

  A key group including a plurality of numeric keys is displayed on the touch panel display, and at that time, depending on whether or not an input using a specific key is possible, a specific key for displaying a specific number of digits on the touch panel display and Toggle hide. Since the specific key can be switched between display and non-display according to the situation, it is possible to suppress an increase in the key arrangement space by hiding the specific key. That is, the keys can be arranged in a space-saving manner. For this reason, the area | region where the other display on a touchscreen display is hidden by the display of a key group can be made small. On the other hand, by displaying the specific key, it is possible to input a plurality of specific digits with this specific key. Therefore, by operating the specific key, a plurality of digits can be input with one input operation. . By inputting a numerical value using a specific key, the number of key inputs can be reduced, and the input operation can be improved. In particular, an image forming apparatus capable of high-speed printing has a large input numerical value for the number of prints that can be set. Therefore, such image formation is performed by displaying (arranging) the specific key that allows a plurality of specific numbers to be input. The device greatly contributes to the improvement of input operation. Furthermore, by hiding the specific key according to the situation, unnecessary display can be avoided as much as possible when the specific key is not necessary. Thereby, the confusion of the user who operates the key group displayed on the touch panel display can be prevented.

  Preferably, the determination unit includes a unit for determining whether or not a maximum value that can be input by an input of a specific key is exceeded, and the switching unit is determined to exceed a maximum value that can be input by an input of the specific key. In this case, the specific key is not displayed, and the specific key is displayed when it is determined that the maximum value that can be input by the input of the specific key is not exceeded.

  If the maximum value that can be input by the input of the specific key is exceeded, the input using the specific key cannot be performed. In this case, the specific key is hidden. Thereby, a user's confusion can be prevented easily. On the other hand, if the maximum value that can be input by the input of the specific key does not exceed the value, the input using the specific key is possible. In this case, the specific key is displayed. By inputting a numerical value using a specific key, the number of key inputs can be reduced, so that the input operation can be improved effectively.

  More preferably, the determination means and the first means for determining whether or not the maximum number of digits that can be input by the input of the specific key exceeds the maximum value that can be input by the input of the specific key. The switching means is determined by the first means to exceed the maximum number of digits that can be input by the input of the specific key, or the specific key is determined by the first means. When it is determined that the maximum number of digits that can be input is not exceeded by the input of, and when it is determined by the second means that the maximum value that can be input is exceeded by the input of the specific key, the specific key is hidden. When the second means determines that the maximum value that can be input by the input of the specific key is not exceeded, the specific key is displayed.

  If the maximum number of digits that can be input by the input of the specific key is exceeded, input using the specific key cannot be performed. In this case, the specific key is not displayed. Even if the maximum number of digits that can be input by the input of the specific key does not exceed the maximum value that can be input by the input of the specific key, the input using the specific key cannot be performed. Therefore, also in this case, the specific key is hidden. Thereby, a user's confusion can be prevented easily. On the other hand, if the maximum value that can be input by the input of the specific key does not exceed the value, the input using the specific key is possible. In this case, the specific key is displayed. By inputting a numerical value using a specific key, the number of key inputs can be reduced, so that the input operation can be effectively improved.

  An image forming apparatus according to a third aspect of the present invention includes a touch panel display, a control unit for controlling the operation of the own device in response to an input from the touch panel display, and a key group including a plurality of numeric keys. Display control means for performing control to be displayed on the display. The key group further includes a specific key for inputting a specific number of digits, and the display control means determines whether or not the input using the specific key is possible in the numerical value input using the key group. And a switching unit for switching the display mode of the specific key to either the changed state or the state before the change according to the determination result of the determination unit.

  A key group including a specific key is displayed on the touch panel display, and when the input using the specific key cannot be performed in the numerical value input using the key group, the display mode of the specific key is changed from the original state. By changing the display mode of the specific key, erroneous recognition of the user can be suppressed. Thereby, the confusion of the user who operates the key group displayed on the touch panel display can be prevented. On the other hand, when the input using the specific key is possible, the display mode of the specific key is set to the state before the change. That is, the display mode of the specific key is set to the original state. Since the specific key can input a plurality of digits, it is possible to input a plurality of digits by a single input operation by operating the specific key. By inputting a numerical value using a specific key, the number of key inputs can be reduced, and the input operation can be improved. In particular, an image forming apparatus capable of high-speed printing has a large input numerical value for the number of prints that can be set. Greatly contributes to improved operation.

  Preferably, the determination unit includes a unit for determining whether or not a maximum value that can be input by an input of a specific key is exceeded, and the switching unit is determined to exceed a maximum value that can be input by an input of the specific key. The display mode of the specific key is changed, and when it is determined that the maximum value that can be input by the input of the specific key is not exceeded, the display mode of the specific key is set to the state before the change.

  When the maximum value that can be input by the input of the specific key is exceeded, the input using the specific key cannot be performed. In this case, the display mode of the specific key is changed from the original state. Thereby, a user's confusion can be prevented easily. On the other hand, if the maximum value that can be input by the input of the specific key does not exceed, the input using the specific key is possible. In this case, the display mode of the specific key is set to the original state. This facilitates numerical input using a specific key, and the number of key inputs can be reduced by inputting a numerical value using the specific key. As a result, the input operation can be improved effectively.

  More preferably, the determination means and the first means for determining whether or not the maximum number of digits that can be input by the input of the specific key exceeds the maximum value that can be input by the input of the specific key. The switching means is determined by the first means to exceed the maximum number of digits that can be input by the input of the specific key, or the specific key is determined by the first means. When it is determined that the maximum number of digits that can be input is not exceeded by the input of, and when it is determined by the second means that the maximum value that can be input by the input of the specific key is determined, the display mode of the specific key is changed. In the changed state, when it is determined by the second means that the maximum value that can be input by the input of the specific key is not exceeded, the display mode of the specific key is set to the state before the change.

  If the maximum number of digits that can be input by the input of the specific key is exceeded, the input using the specific key cannot be performed. In this case, the display mode of the specific key is changed from the original state. Even if the maximum number of digits that can be input by the input of the specific key does not exceed the maximum value that can be input by the input of the specific key, the input using the specific key cannot be performed. Therefore, also in this case, the display mode of the specific key is changed from the original state. Thereby, a user's confusion can be prevented easily. On the other hand, if the maximum value that can be input is not exceeded by the input of the specific key, the display mode of the specific key is set to the original state. This facilitates numerical input using a specific key, and the number of key inputs can be reduced by inputting a numerical value using the specific key. As a result, the input operation can be improved effectively.

  More preferably, the specific key is a numeric key (“00” key) for inputting two digits of zero. Thereby, for example, when a well-cut numerical value such as “100” or “200” is input, the input operation can be improved more easily. The specific key may be a numeric key (“000” key) for inputting three digits of zero, for example.

  As described above, according to the present invention, it is possible to easily obtain an image forming apparatus that can improve an input operation and can prevent user confusion.

1 is a control block diagram illustrating a hardware configuration of an image forming apparatus according to a first embodiment of the present invention. It is a figure which shows the structure of the virtual ten key displayed on a touchscreen display (The figure displayed in the state which can operate the "00" key). It is a figure which shows the structure of the virtual ten key displayed on a touch panel display ("00" key is displayed in the state which cannot be operated). FIG. 2 is a diagram illustrating an example of a basic copy screen displayed on a touch panel display of the image forming apparatus of FIG. 1. FIG. 2 is a diagram illustrating an example of a magnification setting screen displayed on a touch panel display of the image forming apparatus in FIG. 1. 2 is a flowchart showing a control structure of a program executed by the image forming apparatus of FIG. FIG. 2 is a diagram illustrating an example of a message window displayed on a touch panel display of the image forming apparatus in FIG. 1. FIG. 2 is a diagram illustrating an example of a message window displayed on a touch panel display of the image forming apparatus in FIG. 1. 2 is a flowchart showing a control structure of a program executed by the image forming apparatus of FIG. It is the figure which expanded and showed the display column in which the input numerical value (number) is displayed in a virtual numeric keypad. FIG. 10 is a diagram illustrating a configuration of a virtual numeric keypad displayed on a touch panel display of an image forming apparatus according to a second embodiment (a diagram in a state where a “00” key is displayed). FIG. 10 is a diagram illustrating a configuration of a virtual numeric keypad displayed on a touch panel display of an image forming apparatus according to a second embodiment (a diagram in which a “00” key is not displayed). 10 is a flowchart illustrating a control structure of a program executed by the image forming apparatus according to the second embodiment. It is a detailed flow of step S3020 of FIG. It is a detailed flow of step S3030 of FIG. FIG. 10 is a diagram showing a configuration of a virtual numeric keypad displayed on a touch panel display of an image forming apparatus according to a third embodiment (a diagram before a “00” key display mode is changed). It is a figure which shows the structure of the virtual ten key displayed on the touchscreen display of the image forming apparatus which concerns on 3rd Embodiment (The figure of the state after the display mode of a "00" key was changed). 14 is a flowchart illustrating a control structure of a program executed by the image forming apparatus according to the third embodiment. It is a figure which shows the structure of the virtual ten key displayed on the touchscreen display of the image forming apparatus which concerns on 4th Embodiment (The figure of the state before the display mode of a virtual ten key is changed). It is a figure (diagram of the state after the display mode of a virtual ten key was changed) showing the composition of the virtual ten key displayed on the touch panel display of the image forming device concerning a 4th embodiment. 14 is a flowchart illustrating a control structure of a program executed by the image forming apparatus according to the fourth embodiment. It is a figure which shows the structure of the virtual ten key displayed on the touchscreen display of the image forming apparatus which concerns on 5th Embodiment (The figure of the state before the display mode of a virtual ten key is changed). It is a figure (figure of the state after the display mode of a virtual ten key was changed) showing the composition of the virtual ten key displayed on the touch panel display of the image forming device concerning a 5th embodiment. It is a figure (figure in the state where a "000" key is displayed) which shows the structure of the virtual ten key displayed on the touchscreen display of the image forming apparatus which concerns on the 1st modification of this invention. It is a figure which shows the structure of the virtual ten key displayed on the touchscreen display of the image forming apparatus which concerns on the 2nd modification of this invention. It is a figure which shows the structure of the virtual ten key displayed on the touchscreen display of the image forming apparatus which concerns on the 2nd modification of this invention.

  In the following embodiments, the same parts are denoted by the same reference numerals. Their functions and names are also the same. Therefore, detailed description thereof will not be repeated.

(First embodiment)
Referring to FIG. 1, an image forming apparatus 100 according to an embodiment of the present invention includes, for example, an MFP having a copy function, a scanner function, a facsimile (hereinafter, sometimes referred to as “FAX”) function, and the like. (Digital multifunction device). In the image forming apparatus 100, when one of various operation modes including a copy mode, a scanner mode, and a FAX mode is selected by the user, various processes corresponding to the selected operation mode can be executed. The image forming apparatus 100 has a so-called laser (electrophotographic) printing function that uses laser light for exposure. However, other types of printing functions may be provided. The image forming apparatus 100 is a high-speed machine capable of high-speed printing.

[Hardware configuration]
The image forming apparatus 100 according to the present embodiment includes a control unit 110, a scanner unit 120, an image processing unit 130, an image forming unit 140, a user authentication unit 150, a FAX communication unit 160, a network interface (hereinafter referred to as “network I / F”). 170) and an operation panel 180.

  The control unit 110 is substantially a computer, and includes a CPU (Central Processing Unit) 112, a ROM (Read Only Memory) 114, a RAM (Random Access Memory) 116, and an HDD (Hard Disk Drive) 118. A BUS line 190 is connected to the CPU 112, and the ROM 114, the RAM 116, and the HDD 118 are electrically connected to the BUS line 190. The CPU 112 executes various computer programs in accordance with instructions from the operation panel 180 and the like, thereby performing operations of each unit of the image forming apparatus 100 and communication with an external device such as an information processing apparatus (not shown). Execute the process. The various computer programs described above are stored in advance in the ROM 114 or the HDD 118, and are read from the ROM 114 or the HDD 118 and transferred to the RAM 116 when desired processing is executed. The CPU 112 reads and interprets a program instruction from an address in the RAM 116 specified by a value stored in a register called a program counter (not shown) in the CPU 112. The CPU 112 also reads data necessary for the operation from the address specified by the read instruction, and executes an operation corresponding to the instruction on the data. The execution result is also stored in an address specified by the instruction, such as a register in the RAM 116, HDD 118, and CPU 112.

  The HDD 118 stores a computer program for realizing general operations of the image forming apparatus 100. This computer program is provided from an information processing apparatus or the like via the network 50 and the network I / F 170. The computer program may be provided by a storage medium such as a DVD on which the computer program is recorded. That is, a DVD as a computer program recording medium may be mounted on a DVD drive (not shown) built in image forming apparatus 100, and the computer program may be read from the DVD and installed in HDD 118. In addition, the HDD 118 stores various data including image data and the like.

  Further, the scanner unit 120, the image processing unit 130, the image forming unit 140, the user authentication unit 150, the FAX communication unit 160, the network I / F 170, and the operation panel 180 are electrically connected to the BUS line 190.

  The scanner unit 120 includes a document detection sensor and a CCD (Charge-Coupled Device) line sensor (none of which is shown). The document detection sensor is a light source (not shown) for an image surface of a document placed on a document placement table (not shown) manually by a user or by an automatic document feeder (not shown). The reflected light image obtained by irradiating light from the above is formed on the CCD line sensor. The CCD line sensor sequentially photoelectrically converts the formed reflected light image and outputs it to the image processing unit 130 as image data. That is, when copying or scanning a document, the scanner unit 120 reads image information from a document placed on a document placement table by a document detection sensor and converts the read image information into an electrical signal by a CCD line sensor. The data is output to the image processing unit 130 as data.

  The image processing unit 130 includes an MPU (Micro Processing Unit, not shown). The image processing unit 130 performs various kinds of processing including predetermined image processing such as rasterization processing on the image data received from the scanner unit 120 or the information processing apparatus or the like, and generates print data with predetermined gradation. Created and output to the image forming unit 140.

  The image forming unit 140 prints an image indicated by image data on a recording sheet, and includes, for example, a photosensitive drum, a charging device, a laser scanning unit (LSU), a developing device, a transfer device, a cleaning device, and a fixing device. And a static eliminator. For example, the image forming unit 140 is provided with a conveyance path, and a recording sheet fed from a sheet feeding unit (not shown) is conveyed along the conveyance path. The paper feed unit pulls out the recording paper stored in a paper cassette (not shown) or the recording paper placed on the manual feed tray one by one, and sends the recording paper to the conveyance path of the image forming unit 140. . While the recording paper is being transported along the transport path of the image forming unit 140, the recording paper passes between the photosensitive drum and the transfer device, and further passes through the fixing device to perform printing on the recording paper. It is.

  The photosensitive drum rotates in one direction, and its surface is cleaned by a cleaning device and a static eliminator and then uniformly charged by a charging device. The laser scanning unit modulates the laser beam based on the image data to be printed, and repeatedly scans the surface of the photosensitive drum in the main scanning direction with this laser beam to form an electrostatic latent image on the surface of the photosensitive drum. To do. The developing device supplies toner to the surface of the photosensitive drum to develop the electrostatic latent image, and forms a toner image on the surface of the photosensitive drum. The transfer device transfers the toner image on the surface of the photosensitive drum to a recording sheet passing between the transfer device and the photosensitive drum.

  The fixing device includes a heating roller for heating the recording paper and a pressure roller for pressing the recording paper. The recording paper is heated by the heating roller and is pressed by the pressure roller, whereby the toner image transferred onto the recording paper is fixed on the recording paper. The recording paper discharged (printed) from the fixing device is discharged to a paper discharge tray.

  The network I / F 170 has an interface with the network 50. The image forming apparatus 100 can perform data communication according to a predetermined communication protocol with an information processing apparatus or the like on the network 50 via the network I / F 170. The image forming apparatus 100 can receive a command signal for instructing execution of various processes such as a print job from the information processing apparatus via the network I / F 170.

  The FAX communication unit 160 provides connection to the public line 60. The FAX communication unit 160 also transmits / receives image data via the public line 60.

  Operation panel 180 includes a touch panel display 182. The touch panel display 182 is a touch panel integrated liquid crystal display device in which a display panel 184 and a touch panel 186 are overlapped. The display panel 184 provides the user with various information such as information relating to the status of the image forming apparatus 100 and the status of various processes. The touch panel display 182 also provides an interactive operation interface for the user. This interactive operation interface accepts user instructions for the overall operation of the image forming apparatus 100 from the touch panel 186, displays the contents of the instructions on the display panel 184, and sends a control signal corresponding to the instructions to the control unit 110 or Output to the MPU of the image processing unit 130.

  In image forming apparatus 100 according to the present embodiment, as will be described later, numeric input of 0 to 9, clear input, and partial symbol input are performed by the user pressing a software key displayed on touch panel display 182. Done.

  The user authentication unit 150 executes login by inputting an authentication code on an authentication screen (not shown) displayed on the touch panel display 182 when the image forming apparatus 100 is activated. The authentication code input operation is performed using a software key displayed on the touch panel display 182.

  The image forming apparatus 100 includes a copy mode, a scanner mode, a printer mode, and a FAX mode as basic operation modes. The image forming apparatus 100 further includes modes such as a magnification setting mode, a margin setting mode, an image shift setting mode, and an authentication code input mode in addition to the operation mode. The magnification setting mode is a mode for setting the copy magnification in the copy mode. The margin setting mode is a mode for setting margins in the copy mode. In the margin setting mode, for example, a margin (margin) for binding the copied recording paper is set. The image shift setting mode is a mode for moving an image in the copy mode. In this image shift setting mode, for example, when the size of the original and the size of the paper to be copied are different, a moving amount for making a copy by moving the image is set. The authentication code input mode is a mode for inputting an authentication code from the touch panel display 182.

  As described above, the image forming apparatus 100 has various modes, and depending on the mode selected by the user, input of a number (numerical value) may be required. For example, in the copy mode, input of a numerical value is required when setting the number of copies. In the magnification setting mode, the margin setting mode, and the image shift setting mode, input of numerical values is required when inputting the magnification, the margin size, and the shift amount, respectively. In the FAX mode, when a FAX number is directly input, input of a number (numeric string) is required. In the authentication code input mode, input of a number (numeric string) is required when the authentication code is input. Note that a numeric string starting from 0 may be input when inputting a FAX number or the like in the FAX mode, or when inputting an authentication code in the authentication code input mode.

  These numerical values (numbers) are input by the user operating (pressing) a software key displayed on the touch panel display 182. Specifically, the image forming apparatus 100 displays a virtual numeric keypad on the touch panel display 182 when a numerical value needs to be input. A numerical value is input by the user operating the virtual numeric keypad.

  Referring to FIG. 2, virtual numeric keypad 200 (200 a) displayed on touch panel display 182 includes a plurality of numeric keys 210, a clear key 220, and a “00” key 230. Each key of the virtual numeric keypad 200 is displayed in a background area 240 that is a window, and a display field 250 for displaying a numerical value (number) corresponding to the input key is displayed in the background area 240. The “00” key 230 is a key for continuously inputting zero (“0”). By operating the “00” key 230, two digits can be input by one input operation. That is, by pressing the “00” key 230, an input result similar to that when the “0” key is pressed twice in succession is obtained. The “00” key 230 can be continuously pressed. For example, “20000” is input when the “2” key → the “00” key 230 → the “00” key 230 is continuously pressed. If the maximum number of inputs that can be input is exceeded by continuously pressing the “00” key 230, the input is not possible, and this is notified by an error sound. The “00” key 230 is arranged in an area adjacent to the “0” key.

  In the present embodiment, whether or not an input using the “00” key 230 is possible is determined by the control unit 110, and the state of the “00” key 230 is changed to a state where an input operation can be performed and a state according to the determination result. Switch to one of the states where input operation is not possible. Specifically, when “00” can be input using the “00” key 230, the “00” key 230 can be input (operated). On the other hand, when “00” cannot be input using the “00” key 230, as shown in FIG. 3, the “00” key 230 is in an input-impossible state (not operable). Referring to FIG. 3, the virtual numeric keypad 200 (200 b) in which the “00” key 230 cannot be input is displayed in a light gray state with the “00” key 230 displayed in a gray state.

  Whether or not “00” can be input using the “00” key 230 depends on whether or not the maximum number of digits that can be input by the “00” key 230 is input and whether or not the “00” key 230 is input. The determination is made based on whether or not the maximum value that can be input is exceeded. When the maximum number of digits that can be input by the input of the “00” key 230 is exceeded, it is determined that the input of “00” using the “00” key 230 is impossible, and thereafter the “00” key 230 is light gray. Is displayed and the input operation is disabled. Although the maximum number of digits that can be input by the input of the “00” key 230 does not exceed, the input of “00” using the “00” key 230 is not possible when the input exceeds the maximum value that can be input. It is determined. On the other hand, when the maximum value that can be input by the input of the “00” key 230 is not exceeded, it is determined that “00” can be input using the “00” key 230, and the “00” key 230 is input. Operation is enabled. When the maximum value that can be input by the input of the “00” key 230 does not exceed, the maximum number of digits that can be input does not exceed.

  In a mode in which a numerical value needs to be input, the virtual numeric keypad 200 is displayed on the touch panel display 182 (see FIG. 1). At that time, the maximum number of digits that can be input and the maximum value that can be input are determined in advance for each mode.

  Here, a copy mode and a magnification setting mode will be described as an example in which the virtual numeric keypad 200 is displayed on the touch panel display 182 in order to input numerical values (numbers).

  When the copy mode is selected, the initial screen of the basic copy screen 400 shown in FIG. 4 is displayed on the touch panel display 182. This initial screen is a screen that is first displayed on the touch panel display 182 when the copy mode is selected by the user. Referring to FIG. 4, on the initial screen of copy basic screen 400, function selection area 410 displays various setting keys for changing the settings of various functions in the copy mode. In this embodiment, as various setting keys, a key 410a for switching the color mode, a key 410b for changing the size of the document, a key 410c for changing the size of the recording paper to be used, and the double-sided copy function , A key 410e for changing the copy magnification, a key 410f for changing the copy density, and a key 410g for setting the finishing function are displayed. In the function selection area 410, below the various setting keys 410a to 410g, the change keys 412 and 414 for changing the display style of the various setting keys 410a to 410g and the setting keys 410a to 410g cannot be changed. A key 416 for displaying a list of other functions is displayed.

  In the preview area 420, a virtual numeric keypad 1200 (200) for inputting the number of copies is displayed. The virtual numeric keypad 1200 includes numeric keys 210 to 0 to 9 and a clear (C) key 220. In the copy mode, since it is possible to perform mass copying, a numerical value with a large number of digits may be input as the number of copies. In the image forming apparatus 100 capable of high-speed printing, the number of copies can be set up to, for example, “99999 copies”. Since neither the maximum number of digits that can be input by the input of the “00” key 230 nor the maximum value is exceeded, the “00” key 230 is input to the virtual numeric keypad 1200 immediately after the copy basic screen 400 is displayed. Is displayed in a state where is possible.

  Each key of the virtual numeric keypad 1200 is always displayed in the background area 240 that is a window. In the background area 240, a character string “number of copies” indicating the number of copies and a numerical value indicating the set number of copies are further displayed. A numerical value indicating the number of copies is displayed in the display field 250 (250a). On the initial screen, “1” which is a default setting is displayed as a numerical value indicating the number of copies.

  In the action panel area 430, various execution keys for executing the recommended function in the copy mode are displayed. The recommended function is a function that has been selected in combination with the function selected by the user in the past. In the task trigger area 440, a preview key 442, a reset key 444, a monochrome start key 446, a color start key 448, and the like are displayed.

  When the user operates (presses) the key 410e on the initial screen of the copy basic screen 400, the display screen of the touch panel display 182 is switched to the magnification setting screen 500 shown in FIG. Referring to FIG. 5, on this magnification setting screen 500, various scaling keys for setting the copy magnification are displayed. The scaling key includes keys 510 to 516 for reducing or enlarging the original image to a size corresponding to the size of the recording paper when copying on a recording paper having a size different from that of the original. The magnification setting screen 500 further displays a key 520 for setting the copy magnification to an arbitrary magnification. When the user operates (presses) the key 520, a virtual numeric keypad 2200 (200) for inputting a copy magnification is displayed on the magnification setting screen 500. Similar to the virtual numeric keypad 1200 for inputting the number of copies, the virtual numeric keypad 2200 includes a numeric key 210 from 0 to 9 and a clear (C) key 220. In this magnification setting mode, the magnification can be set up to 400 times. Therefore, the “00” key 230 is displayed on the virtual numeric keypad 2200 immediately after display in a state where the input operation is possible. In the background area 240 of the virtual numeric keypad 2200, a display field 250 (250b) for displaying the input numerical value and a button 260 for closing the virtual numeric keypad 2200 are displayed. In the display column 250, a numerical value indicating the copy magnification is displayed.

Software configuration
With reference to FIGS. 6 to 9, a control structure of a computer program executed by the image forming apparatus 100 in order to perform the numeric keypad display process and the numerical value display process will be described.

《Numpad display processing》
Referring to FIG. 6, the program determines whether or not the maximum number of digits that can be input by the input of “00” key 230 is exceeded, and step S1000 for branching the control flow according to the determination result, When it is determined in S1000 that the maximum number of digits that can be input is not exceeded by the input of the “00” key 230, it is determined whether or not the maximum value that can be input by the input of the “00” key 230 is exceeded. In step S1010 for branching the control flow according to the result, in step S1010, when it is determined that the maximum number of digits that can be input is exceeded by the input of the “00” key 230, and in step S1000, the “00” key When it is determined that the maximum value that can be input is exceeded by the input of 230, the “00” key 230 is switched to a state in which the input operation is disabled. Tsu and a flop S1020.

  In step S1010, this program further displays the “00” key 230 in a state in which input operation is possible when it is determined that the maximum value that can be input by the input of the “00” key 230 is not exceeded. After step S1030 and step S1020, it is determined whether or not the user has pressed the “00” key 230 (touched the key), and the flow of control is branched in accordance with the determination result. And a step S1050 for displaying a message for notifying the user that the input operation using the “00” key 230 cannot be performed when it is determined in step S1040 that the “00” key 230 is pressed. .

  In step S1050, a message window for notifying the user that the input operation using the “00” key 230 cannot be performed is displayed on the touch panel display 182. When the input of the “00” key 230 exceeds the maximum number of digits that can be input, and the “00” key 230 is in an incapable input state, the message window 300 shown in FIG. 7 is displayed on the touch panel display 182. Is done. Referring to FIG. 7, in this message window 300, for example, “00” cannot be entered because the maximum number of digits is exceeded. Is displayed. On the other hand, when the “00” key 230 exceeds the maximum value that can be input by the input of the “00” key 230, and the “00” key 230 is in an input disabled state, the message window 310 shown in FIG. Is displayed. Referring to FIG. 8, in this message window 310, for example, “00” cannot be entered because it exceeds the maximum input value. Is displayed. The message windows 300 and 310 are displayed while the “00” key 230 is touched by the user, and are erased when the user's finger 350 is released from the “00” key 230.

  Referring to FIG. 6 again, this program further corrects the input numerical value after step S1050 and when it is determined in step S1040 that the “00” key 230 is not input. Step S1060 for determining whether or not the operation has been performed and branching the flow of control according to the determination result is included.

  In step S1060, it is determined whether a part or all of the numerical value input by pressing the clear key 220 has been deleted. If it is determined in step S1060 that the clear key 220 has been pressed, the control returns to step S1000, and if it is determined that the clear key 220 has not been pressed, this program ends.

《Numeric display processing》
Referring to FIG. 9, this program determines whether or not numeric key 210 has been pressed (input) by the user, and in step S2000 that branches the flow of control according to the determination result, and in step S2000, the numeric key When it is determined that 210 is pressed, the input of the numeric key 210 is accepted, and the number (numerical value) corresponding to the pressed numeric key 210 is displayed in the display field 250 in the normal display form, step S2010, If it is determined in S2000 that the numeric key 210 has not been pressed, it is determined whether or not the “00” key 230 has been pressed, and the flow of control branches according to the determination result, Steps S2020 and S2020. When it is determined that the “00” key 230 is pressed, the input of the “00” key 230 is performed. I accepted, and a step S2030 which highlighted the numbers corresponding to the "00" key 230 ( "00") in the display field 250.

  The program further determines whether or not the numerical value input is completed after it is determined that the “00” key 230 is not pressed by the user after step S2010 and step S2030 and in step S2020. Step S2040 that branches the flow of control according to the determination result.

  If it is determined in step S2040 that the numerical value input has not ended, the control returns to step S2000. If it is determined that the numerical value input has ended, the program ends. In step S2030, for example, “00” is highlighted by bold display.

[Operation]
With reference to FIG. 2, FIG. 3, FIG. 6 to FIG. 8, and FIG. 10, the operation of the image forming apparatus 100 according to the present embodiment based on the above-described structure and flowchart will be described.

  When the user selects a mode in which numerical input is required, the image forming apparatus 100 displays a virtual numeric keypad 200 on the touch panel display 182. At that time, the control unit 110 determines whether or not the maximum number of digits that can be input by the input of the “00” key 230 is exceeded and whether or not the maximum value that can be input is exceeded. If the maximum number of digits that can be input by the input of “00” key 230 is exceeded (YES in step S1000 shown in FIG. 6), or if the maximum value that can be input is exceeded (YES in step S1010), “00” key 230 is displayed as an input operation impossible state. Specifically, as shown in FIG. 3, the “00” key 230 is displayed in a light gray so that input is not possible.

  On the other hand, if the control unit 110 determines that the maximum value that can be input by the input of the “00” key 230 is not exceeded (NO in step S1010), the image forming apparatus 100, as shown in FIG. The “00” key 230 is displayed on the touch panel display 182 as an input operation enabled state.

  The user performs numerical input using the displayed virtual numeric keypad 200. When the numerical value is input, the control unit 110 again determines whether or not the maximum number of digits that can be input by the input of the “00” key 230 is exceeded and whether or not the maximum value that can be input is exceeded. The operation similar to the above is repeated. That is, whether or not the maximum number of digits that can be input by the input of the “00” key 230 by the control unit 110 and the maximum value that can be input is exceeded is determined when the virtual numeric keypad 200 is displayed. And it is performed both during the numerical value input using the virtual numeric keypad 200.

  If the user tries to input the “00” key 230 in a state where the input operation of the “00” key 230 is not possible (YES in step S1040), the image forming apparatus 100, as shown in FIGS. The message window 300 or 310 is displayed on the display 182 to notify the user that the input operation using the “00” key 230 cannot be performed (step S1050).

  When the input operation of the “00” key 230 is disabled, the control unit 110 determines whether or not the numerical value has been corrected during the numerical value input (step S1060). If it is determined that the numerical value has been corrected (deletion of the numerical value) (YES in step S1060), control unit 110 again determines whether or not the maximum number of digits that can be input by input of “00” key 230 is exceeded, and It is determined whether or not the maximum value that can be input is exceeded, and the same operation as described above is repeated. When the numerical value is corrected, it may be possible to input a numerical value using the “00” key 230. In such a case, the “00” key 230 is set in a state where the input operation can be performed. To do.

  Thus, in the present embodiment, whether or not input using the “00” key 230 is possible is determined by the control unit 110, and the state of the “00” key 230 is changed according to the determination result. The state is switched to either a state where the input is possible or a state where the input operation is not possible.

  When the “00” key 230 can be input, the numerical value input operability is improved by inputting the numerical value using the “00” key 230. For example, in the copy mode, when setting the number of copies to 20000, “20000” is input by pressing the “00” key 230 twice after the “2” key. At this time, as shown in FIG. 10, the numerical value input using the “00” key 230 is highlighted in the display field 250.

[Effects of the present embodiment]
As is clear from the above description, the following effects can be obtained by using the image forming apparatus 100 according to the present embodiment.

  The virtual numeric keypad 200 including the “00” key 230 is displayed on the touch panel display 182, and when the numeric input using the virtual numeric keypad 200 cannot be performed using the “00” key 230, the “00” key 230 is input. Is switched to a disabled state. In the state where the input operation is not possible, the key input cannot be performed even if the “00” key 230 is touched. Therefore, user confusion can be prevented. In addition, when the input operation is not possible, the “00” key 230 is displayed in a light gray color, which can also prevent user confusion. On the other hand, if input using the “00” key 230 is possible, the “00” key 230 is switched to a state where input operation is possible. Since the “00” key 230 can input two digits of zero by a single input operation, the number of key inputs can be reduced by inputting a numerical value using the “00” key 230. As a result, the input operation can be improved effectively.

  In particular, in the image forming apparatus 100 capable of high-speed printing, since the input value of the settable number of copies is large, an input operation is performed in such an image forming apparatus 100 by providing a “00” key 230 on the virtual numeric keypad 200. Contribute greatly to improvement.

  The control unit 110 determines whether or not the maximum number of digits that can be input by the input of the “00” key 230 is exceeded. It is determined whether or not the maximum value that can be input is exceeded. When it is determined that the maximum number of digits that can be input by the input of the “00” key 230 is exceeded, or when it is determined that the maximum value that can be input is exceeded, the “00” key 230 is in a state in which an input operation is not possible. And On the other hand, when it is determined that the maximum value that can be input is not exceeded by the input of the “00” key 230, the “00” key 230 is set in a state where input operation is possible.

  When the maximum number of digits that can be input by the input of the “00” key 230 is exceeded, “00” cannot be input using the “00” key 230. In this case, the input operation of the “00” key 230 is impossible. To the state. Even if the maximum number of digits that can be input by the input of the “00” key 230 does not exceed the maximum value that can be input by the input of the “00” key 230, the “00” key 230 is used. I cannot input "00". Therefore, also in this case, the “00” key 230 is set in a state in which the input operation is impossible. As a result, the “00” key 230 can be easily made incapable of input operation, so that user confusion can be easily prevented. On the other hand, if the maximum value that can be input by the input of the “00” key 230 is not exceeded, “00” can be input using the “00” key 230. In this case, the “00” key 230 is pressed. Enable input operation. By inputting a numerical value using the “00” key 230, the number of key inputs can be reduced, and the input operation can be improved more effectively.

  When the input operation is switched to a state where the input operation is not possible, the image forming apparatus 100 notifies that the user cannot touch the “00” key 230 when the user touches the “00” key 230 (touches the key). Message windows 300 and 310 are displayed on the touch panel display 182. Therefore, the user can easily recognize that the input operation using the “00” key 230 is not possible.

  In the operation mode in which the “00” key 230 is displayed, when the “00” key 230 is pressed by the user, “00” corresponding to the “00” key 230 is highlighted on the touch panel display 182. By inputting a numerical value using the “00” key 230, the input operation can be improved when inputting a numerical value having a large number of digits. On the other hand, in the input of numerical values having a large number of digits, input errors generally increase. Since the “00” key 230 is often used when inputting a numerical value having a large number of digits, a numerical value (“00”) corresponding to the “00” key 230 is input when inputting a numerical value using the “00” key 230. ) Is emphasized and displayed on the touch panel display 182 so that the user can easily recognize a numerical value having a large number of digits. Thereby, even when inputting a numerical value with a large number of digits, input errors can be reduced. Here, in inputting the number of copies, if an input error occurs when the number of copies is large, the waste of printing cost becomes very large. For this reason, it is possible to effectively reduce wasteful printing costs by reducing input mistakes when inputting numerical values with a large number of digits.

  In addition, since the “00” key 230 is a numeric key for inputting two digits of zero, the input operation is improved more easily when inputting a numerical value such as “100”, “200”, etc. it can.

(Second Embodiment)
In the image forming apparatus according to the present embodiment, whether or not input using the “00” key 230 is possible is determined by the control unit 110, and the display and non-display of the “00” key 230 are performed according to the determination result. Switched. Specifically, when the “00” key 230 can be input (“00” input), the “00” key 230 is displayed. On the other hand, when the “00” key 230 cannot be input, the “00” key 230 is not displayed. At this time, the arrangement, size, and the like of the numeric key 210 and the clear key 220 are changed.

  FIG. 11 shows the virtual numeric keypad 3200 with the “00” key 230 displayed. Referring to FIG. 11, this virtual numeric keypad 3200 has a configuration similar to that of virtual numeric keypad 200a shown in FIG. That is, the virtual numeric keypad 3200 includes a plurality of numeric keys 210, a clear key 220, and a “00” key 230. Each key of the virtual numeric keypad 3200 is displayed in a background area 240 as a window, and a display field 250 for displaying a numerical value (number) corresponding to the input key is displayed in the background area 240.

  FIG. 12 shows a virtual numeric keypad 3200A in which the “00” key 230 is not displayed. Referring to FIG. 12, this virtual numeric keypad 3200A includes a plurality of numeric keys 210a and clear key 220a of 0-9. Each key of the virtual numeric keypad 3200 </ b> A is displayed in a background area 240 that is a window, and a display field 250 is displayed in the background area 240. The arrangement and size of each key of the virtual numeric keypad 3200A are changed in the background area 240. Specifically, among the numeric keys 210a, the “0” key is arranged (moved) below the “1” key, and the clear key 220a is arranged (moved) below the “3” key. Yes. The numeric key 210a and the clear key 220a are both enlarged in key size.

  Note that the hardware configuration of the image forming apparatus according to the present embodiment is the same as that of the first embodiment. Therefore, detailed description thereof will not be repeated.

Software configuration
Referring to FIG. 13, in the image forming apparatus according to the present embodiment, each process except for the processes in steps S3020 and S3030 is the same as each process executed by the computer program shown in FIG. Further, the present embodiment includes step S3020 and step S3030 instead of step S1020, step S1040, step S1050, and step S1030 shown in FIG. Hereinafter, different parts will be described. Since the control structure of the computer program for performing the numerical value display process is the same as that of the first embodiment, detailed description thereof will not be repeated.

  When it is determined in step S1000 that the maximum number of digits that can be input by the input of the “00” key 230 is exceeded, and in step S1010, the maximum value that can be input by the input of the “00” key 230 is determined. When it is determined that the value exceeds the maximum value that can be input by the input of the “00” key 230 in step S3020 for hiding the “00” key 230 and in step S1010, Step S3030 which displays the “00” key 230 and returns the control to Step S1000.

  FIG. 14 is a detailed flow of step S3020 of FIG. Referring to FIG. 14, in this routine, step S4000 for deleting “00” key 230 from the virtual numeric keypad, and after step S4000, the arrangement of numeric key 210 and clear key 220 are changed, and numeric keypad is changed. 210a and clear key 220a, and step S4010 which ends this routine is included.

  FIG. 15 is a detailed flow of step S3030 of FIG. Referring to FIG. 15, in this routine, step S5000 for returning the arrangement of the numeric keys 210a and the clear key 220a to the original state, and after step S5000, the “00” key 230 is displayed on the virtual numeric keypad. And step S5010 to end the routine.

[Operation]
Referring to FIGS. 11 to 15, the image forming apparatus according to the present embodiment operates as follows. Operations other than the operation of switching between display and non-display of the “00” key 230 are the same as those of the image forming apparatus 100 described in the first embodiment. Therefore, detailed description of similar operations will not be repeated.

  If the maximum value that can be input by the input of “00” key 230 is not exceeded (NO in step S1010 shown in FIG. 13), the image forming apparatus displays “00” key 230 on virtual numeric keypad 3200 (step S3030). . On the other hand, if the maximum number of digits that can be input by the input of “00” key 230 is exceeded (YES in step S1000), or if the maximum value that can be input is exceeded (YES in step S1010), “00” key 230 is pressed. Hide. Specifically, after the “00” key 230 is erased from the virtual numeric keypad 3200 (step S4000 in FIG. 14), the arrangement of the numeric keys 210 and the clear key 220 is changed (step S4010 in FIG. 14). That is, the virtual numeric keypad 3200 </ b> A shown in FIG. 12 is displayed on the touch panel display 182.

  When a numerical value can be input using the “00” key 230 by correcting the numerical value (deleting the numerical value), the “00” key 230 is displayed after the “00” key 230 is not displayed. The state is switched (step S3030 in FIG. 13). In this case, after the arrangement of the numeric keys 210a and the clear key 220a is returned to the original state (step S5000 in FIG. 15), the “00” key 230 is displayed. That is, the virtual numeric keypad 3200 shown in FIG. 11 is displayed on the touch panel display 182.

[Effects of the present embodiment]
As is clear from the above description, the following effects can be obtained by using the image forming apparatus according to the present embodiment.

  A virtual numeric keypad 3200 including a plurality of numeric keys 210 is displayed on the touch panel display 182, and at this time, depending on whether or not input using the “00” key 230 is possible, the display of the “00” key 230 on the touch panel display 182 and Toggle hide. Since the “00” key 230 can be switched between display and non-display according to the situation, it is possible to suppress an increase in the key arrangement space by disabling the “00” key 230. On the other hand, by displaying the “00” key 230, the “00” key 230 can input two digits of zero (“0”), and therefore, a numerical value is input using the “00” key 230. As a result, the number of key inputs can be reduced. Therefore, the input operation can be improved. Further, by not displaying the “00” key 230 according to the situation, it is possible to prevent unnecessary display as much as possible when the “00” key 230 is not necessary. Thereby, the confusion of the user who operates the key group displayed on the touch panel display 182 can be prevented. In addition, when the “00” key 230 is not displayed, the operability of these keys can be improved by changing the arrangement of the numeric keys 210 and the clear key 220, so that the input operation can be performed more effectively. Can improve.

(Third embodiment)
In the image forming apparatus according to the present embodiment, control unit 110 determines whether or not input using “00” key 230 is possible, and the display mode of “00” key 230 is changed according to the determination result. Is done. Specifically, when the input of the “00” key 230 is possible, the display mode of the “00” key 230 is not changed, and when the input using the “00” key 230 is not possible, “00”. The display mode of the key 230 is changed.

  FIG. 16 shows the virtual numeric keypad 4200 in a state before the display mode of the “00” key 230 is changed. Referring to FIG. 16, this virtual numeric keypad 4200 has the same configuration as virtual numeric keypad 200a shown in FIG. That is, the virtual numeric keypad 4200 includes a plurality of numeric keys 210, a clear key 220, and a “00” key 230. Each key of the virtual numeric keypad 4200 is displayed in a background area 240 which is a window, and a display field 250 for displaying a numerical value (number) corresponding to the input key is displayed in the background area 240.

  FIG. 17 shows a virtual numeric keypad 4200A in a state where the display mode of the “00” key 230 is changed. Referring to FIG. 17, this virtual numeric keypad 4200A includes a “00” key 230a whose display mode has been changed. The key shape of the “00” key 230a is changed from a rectangular shape to an elliptical shape, and the key size is also reduced.

  Note that the hardware configuration of the image forming apparatus according to the present embodiment is the same as that of the first embodiment. Therefore, detailed description thereof will not be repeated.

Software configuration
Referring to FIG. 18, in the image forming apparatus according to the present embodiment, each process except for the processes in steps S4020 and S4030 is the same as each process executed by the computer program shown in FIG. Further, the present embodiment includes step S4020 and step S4030 instead of step S1020, step S1040, step S1050, and step S1030 shown in FIG. Hereinafter, different parts will be described. Since the control structure of the computer program for performing the numerical value display process is the same as that of the first embodiment, detailed description thereof will not be repeated.

  When it is determined in step S1000 that the maximum number of digits that can be input by the input of the “00” key 230 is exceeded, and in step S1010, the maximum value that can be input by the input of the “00” key 230 is determined. When it is determined that the value exceeds the maximum value that can be input by the input of the “00” key 230 in step S4020 for changing the display mode of the “00” key 230 and in step S1010, And a step S4030 in which the display mode of the “00” key 230 is set to the state before the change and the control is returned to the step S1000.

[Operation]
Referring to FIGS. 16 to 18, the image forming apparatus according to the present embodiment operates as follows. The operations except for the operation of changing the display mode of the “00” key 230 are the same as those of the image forming apparatus 100 shown in the first embodiment. Therefore, detailed description of similar operations will not be repeated.

  If the maximum value that can be input by the input of “00” key 230 is not exceeded (NO in step S1010 shown in FIG. 18), the image forming apparatus displays “00” key 230 on virtual ten key 4200 (step S4030). . On the other hand, if the maximum number of digits that can be input by the input of “00” key 230 is exceeded (YES in step S1000), or if the maximum value that can be input is exceeded (YES in step S1010), “00” key 230 Change the display mode. Specifically, the shape of the “00” key 230 is changed from a rectangular shape to an elliptical shape, and the key size is reduced. That is, the virtual numeric keypad 4200 </ b> A shown in FIG. 17 is displayed on the touch panel display 182. The virtual numeric keypad 4200A displays a “00” key 230a whose display mode has been changed.

  When the numerical value is corrected (deletion of numerical value) and the numerical value can be input using the “00” key 230, the “00” key whose original display mode is the “00” key 230a is displayed. The process is returned to 230 (step S4030 in FIG. 18). That is, the virtual numeric keypad 4200 shown in FIG. 16 is displayed on the touch panel display 182.

[Effects of the present embodiment]
As is clear from the above description, the following effects can be obtained by using the image forming apparatus according to the present embodiment.

  When the virtual numeric keypad 4200 including the “00” key 230 is displayed on the touch panel display 182 and the numeric input using the virtual numeric keypad 4200 cannot be performed using the “00” key 230, the display mode of the “00” key 230 is displayed. To change. By changing the display mode of the “00” key 230, the user's misrecognition is suppressed. Thereby, confusion of the user who operates the virtual numeric keypad 4200A displayed on the touch panel display 182 can be prevented. On the other hand, when input using the “00” key 230 is possible, the display mode of the “00” key 230 is set to the state before the change. This facilitates input of the “00” key 230. Since the “00” key 230 can input two digits of zero by a single input operation, the number of key inputs can be reduced by inputting a numerical value using the “00” key 230. As a result, the input operation can be improved effectively.

(Fourth embodiment)
In the image forming apparatus according to the present embodiment, whether or not input using the “00” key 230 is possible is determined by the control unit 110, and a virtual numeric keypad including the “00” key 230 is determined according to the determination result. The display mode is changed. Specifically, when the input of the “00” key 230 is possible, the display mode of the virtual numeric keypad is not changed, and when the input using the “00” key 230 is not possible, the display mode of the virtual numeric keypad is changed. Be changed.

  FIG. 19 shows a virtual numeric keypad 5200 before the display mode is changed. Referring to FIG. 19, this virtual numeric keypad 5200 has a configuration similar to that of virtual numeric keypad 200a shown in FIG. That is, the virtual numeric keypad 5200 includes a plurality of numeric keys 210 to 0 to 9, a clear key 220, and a “00” key 230. Each key of the virtual numeric keypad 5200 is displayed in a background area 240 which is a window, and a display field 250 for displaying a numerical value (number) corresponding to the input key is displayed in the background area 240.

  FIG. 20 shows the virtual numeric keypad 5200A after the display mode is changed. Referring to FIG. 20, this virtual numeric keypad 5200A includes one large “0” key 5210 in which a “00” key 230 (see FIG. 19) and a “0” key are combined. The virtual numeric keypad 5200A further includes a numeric key 210b of numbers 1 to 9 and a clear key 220b. The clear key 220b is arranged (moved) below the “3” key. Both the numeric key 210b and the clear key 220b have an enlarged key size.

  Note that the hardware configuration of the image forming apparatus according to the present embodiment is the same as that of the first embodiment. Therefore, detailed description thereof will not be repeated.

Software configuration
Referring to FIG. 21, in the image forming apparatus according to the present embodiment, each process except the processes in steps S5020 and S5030 is the same as each process executed by the computer program shown in FIG. Further, this embodiment includes step S5020 and step S5030 instead of step S1020, step S1040, step S1050, and step S1030 shown in FIG. Hereinafter, different parts will be described. Since the control structure of the computer program for performing the numerical value display process is the same as that of the first embodiment, detailed description thereof will not be repeated.

  When it is determined in step S1000 that the maximum number of digits that can be input by the input of the “00” key 230 is exceeded, and in step S1010, the maximum value that can be input by the input of the “00” key 230 is determined. When it is determined that the maximum number is exceeded, in step S5020 for changing the display mode of the virtual numeric keypad 5200 and in step S1010, it is determined that the maximum value that can be input by the input of the “00” key 230 is not exceeded. Step S5030 including setting the display mode of 5200A to the state before change (virtual numeric keypad 5200) and returning the control to Step S1000 is included.

[Operation]
Referring to FIGS. 19 to 21, the image forming apparatus according to the present embodiment operates as follows. Note that operations other than the operation of changing the display mode of the virtual numeric keypad are the same as those of the image forming apparatus 100 described in the first embodiment. Therefore, detailed description of similar operations will not be repeated.

  If the maximum value that can be input by the input of “00” key 230 is not exceeded (NO in step S1010), the image forming apparatus displays virtual numeric keypad 5200 shown in FIG. 19 on touch panel display 182 (step S5030 in FIG. 21). ). On the other hand, when the maximum number of digits that can be input by the input of “00” key 230 is exceeded (YES in step S1000) or the maximum value that can be input is exceeded (YES in step S1010), the display shown in FIG. The virtual numeric keypad 5200A whose form has been changed is displayed on the touch panel display 182. By changing the display mode, one large “0” key 5210 in which the “00” key 230 (see FIG. 19) and the “0” key are combined is displayed on the virtual numeric keypad 5200A.

  When numerical values can be input using the “00” key 230 by correcting numerical values (deleting numerical values), the display mode of the virtual numeric keypad is restored to the original state (step S5030 in FIG. 21). ). That is, the virtual numeric keypad 5200 shown in FIG. 19 is displayed on the touch panel display 182.

[Effects of the present embodiment]
As is clear from the above description, the following effects can be obtained by using the image forming apparatus according to the present embodiment.

  Even when input using the “00” key 230 is impossible, it may be possible to input a numerical value using the “0” key. When input using the “00” key 230 is not possible, the display mode is changed to a virtual numeric keypad 5200A including one large “0” key 5210 in which the “00” key 230 and the “0” key are combined. , The operability of input using the “0” key can be improved. Further, since the “00” key 230 is changed to the “0” key 5210, unnecessary display can be avoided as much as possible when the “00” key 230 is not necessary. Thereby, confusion of the user who operates the virtual numeric keypad 5200A displayed on the touch panel display 182 can be prevented.

(Fifth embodiment)
In the image forming apparatus according to the present embodiment, as in the fourth embodiment, the control unit 110 determines whether or not input using the “00” key is possible. The display mode of the virtual numeric keypad including the “00” key is changed. However, this embodiment is different from the fourth embodiment in that the “00” key is changed to a clear key.

  FIG. 22 shows a virtual numeric keypad 6200 before the display mode is changed. Referring to FIG. 22, this virtual numeric keypad 6200 includes a plurality of numeric keys 210c 0 to 9 and a “00” key 230b. The “00” key 230b is arranged below the “3” key.

  FIG. 23 shows the virtual numeric keypad 6200A after the display mode is changed. Referring to FIG. 23, in this virtual numeric keypad 6200 A, “00” key 230 b shown in FIG. 22 is changed to clear key 6220.

  If input using the “00” key 230b is not possible, it may be possible to input a numerical value using the “00” key 230b by pressing the clear key. For example, when “123” is input in a mode in which “1000” can be input, “00” cannot be input using the “00” key 230b, but a clear key for clearing (deleting) one digit. Can be operated (input). By the clear key input operation, the input numerical value becomes “12”. Correcting incorrect input is also a candidate for the next operation performed by the user who has entered a numerical value close to the maximum number of digits so that the “00” key 230b cannot be pressed (input operation). Therefore, when input using the “00” key 230 b is not possible, the erroneous input can be easily corrected by changing the “00” key 230 b to the clear key 6220. That is, it is possible to provide a function that can easily return one digit when an erroneous input is made. In addition, according to the above configuration, the display space of each key can be expanded, and confusion of the user who operates the key group displayed on the touch panel display 182 can be effectively prevented.

[Modification]
In the above embodiment, an example in which the present invention is applied to an MFP that is an example of an image forming apparatus has been described. However, the present invention is not limited to such an embodiment. As long as the touch panel display is provided, the image forming apparatus may be other than the MFP. For example, an image forming apparatus such as a copier or a printer may be used.

  In the said embodiment, although the example which comprised the touchscreen display from the touchscreen integrated liquid crystal display device was shown, this invention is not limited to such embodiment. The display panel constituting the touch panel display may be a display panel other than the liquid crystal display panel (liquid crystal display). Examples of the display panel other than the liquid crystal display panel include a display panel made of an organic EL or the like. Further, the touch panel display may have a configuration in which a display panel and a touch panel are overlapped, or may have a configuration in which a display panel and a touch panel are integrally formed, for example. Any method of input detection in the touch panel display may be used.

  In the above-described embodiment, an example in which the image forming apparatus is a high-speed machine capable of high-speed printing has been described, but the present invention is not limited to such an embodiment. The image forming apparatus may be an apparatus other than a high speed machine. The number of copies that can be input may be other than “99999 copies”.

  In the above-described embodiment, an example in which a numerical value (“00”) input with the “00” key is highlighted in bold is shown, but the present invention is not limited to such an embodiment. The highlighted display of the numerical value input by the “00” key may be other than the bold display. For example, the numerical value input by the “00” key may be displayed in a different color from the numerical values input by other numerical keys, or may be highlighted by a method such as lighting the numerical value. Furthermore, the numerical value input by the “00” key may be highlighted by highlighting or highlighting. It should be noted that the numerical value input by the “00” key may be a normal display as the numerical values input by other numerical keys.

  As a method for suppressing erroneous input of numerical values (input errors) using the virtual numeric keypad, for example, in addition to numerical value highlighting, a numerical value input after input of a numerical value is read out by voice. When a “00” key is input, A method of ringing may be used. That is, it is possible to make it easy to recognize an erroneous input by hearing or the like other than vision. For example, in the copy mode, when a copy start is performed in a state in which the number of copies equal to or greater than a preset number has been input, a pop-up message is displayed that confirms whether the number of copies is large but printing is allowed. You may do it.

  In the above embodiment, the key layout, key size, shape, etc. of the other keys (eg, numeric keys) of the virtual numeric keypad are changed in accordance with the display and non-display of the “00” key. Also good. Furthermore, the background area which is the window of the virtual numeric keypad may be reduced according to the key arrangement, key size and shape, and the like. With this configuration, it is possible to easily suppress an increase in the key arrangement space, so that the virtual numeric keypad can be displayed in a space-saving manner for performing other displays on the touch panel display.

  In the above embodiment, whether or not “00” can be input using the “00” key is determined based on whether or not the maximum number of digits that can be input by inputting the “00” key is exceeded, and “00” Although an example of performing based on whether or not the maximum value that can be input by the key input is exceeded is shown, the present invention is not limited to such an embodiment. Whether or not “00” can be input using the “00” key may be determined based on whether or not the maximum number of digits that can be input by the input of the “00” key is exceeded. It may be performed based on whether or not the maximum value that can be input by the input of the “” key is exceeded.

  In the above-described embodiment, an example in which the “00” key is used as a specific key for inputting a plurality of specific numbers is shown, but the present invention is not limited to such an embodiment. In addition to the “00” key, for example, a “000” key may be used. Also, as shown in FIG. 24, a virtual numeric keypad 7200 (200) in which both “00” key 230 and “000” key 270 are displayed may be used.

  In the above embodiment, the specific key for inputting a plurality of specific numbers may be other than the “00” key and the “000” key. In other words, the specific key may be a key for inputting a number other than zero (“0”) as a specific number. For example, a “99” key or the like for inputting “9” in a plurality of digits may be used. In the copy mode, if the maximum number of copies that can be input is, for example, “9999”, and if it is desired to copy a larger number of copies, the maximum number of copies that can be input is input for the time being. In that case, displaying the “99” key can improve the numerical value input operation.

Further, the specific key for inputting a plurality of digits of zero may be other than “00” key and “000” key. Specifically, for example, a key for inputting a plurality of digits of zero by a combination with other numeric keys can be used. Referring to FIG. 25, for example, “0 ^x ” key 280 is displayed on virtual numeric keypad 8200 (200) instead of “00” key. The “ ^0x ” key 280 is a key for continuously inputting zero (“0”) in combination with other numeric keys. After the “0 ^x ” key 280 is input, the number of times that zero (“0”) is to be continuously input is designated by the numeric key. For example, after pressing the "0 ^x" key 280, and presses the "2" key, the entry "00", and presses the "3" key, it is entered as "000". After the “ ^0x ” key 280 is input, only the number keys that can be input among a plurality of number keys are displayed (becomes active). Referring to FIG. 26, when “0 ^x ” key 280 is pressed, for example, “0 ^x ” key 280 is highlighted and becomes a virtual numeric keypad 8200 ^{</ b} > A (200) on which enterable numeric keys are displayed. Since numeric keys that cannot be input are not displayed, confusion for the user is prevented and an easy-to-understand operation is possible.

In the above, a predetermined time after the input of "0 ^x" key 280 is not pressed another key, or, if you close the virtual numeric keypad without pressing another key, so as to be numeric input as "0" Also good. With this configuration, the “0” key can be eliminated, and space can be saved more effectively.

  In the first embodiment, when the user presses the “00” key (touches the key) when the “00” key cannot be input, the “00” key is used for the touch panel display. Although an example of displaying a message window for notifying the user that the input operation cannot be performed has been shown, the present invention is not limited to such an embodiment. For example, the message window may not be displayed even when the user presses the “00” key (touches the key) while the input operation of the “00” key is not possible.

  In the third embodiment, the example has been described in which the display mode of the “00” key is changed from a rectangular shape to an elliptical shape, but the present invention is not limited to such an embodiment. The display mode of the “00” key may be changed to a shape other than the elliptical shape. For example, the display mode of the “00” key may be changed to another shape such as a circular shape or a triangular shape. Alternatively, the key shape may be reduced and the key size may be reduced.

  Note that embodiments obtained by appropriately combining the techniques disclosed above are also included in the technical scope of the present invention.

  The embodiment disclosed herein is merely an example, and the present invention is not limited to the embodiment described above. The scope of the present invention is indicated by each claim in the claims after taking into account the description of the detailed description of the invention, and all modifications within the meaning and scope equivalent to the wording described therein are intended. Including.

DESCRIPTION OF SYMBOLS 100 Image forming apparatus 110 Control part 120 Scanner part 130 Image processing part 140 Image forming part 150 User authentication part 160 FAX communication part 170 Network I / F
180 Operation panel 182 Touch panel display 200, 200a, 200b, 1200, 2200,
3200, 3200A, 4200, 4200A,
5200, 5200A, 6200, 6200A,
7200, 8200, 8200A Virtual numeric keypad 230, 230a, 230b “00” key 250 display field

Claims (11)

A touch panel display;
In response to an input from the touch panel display, a control means for controlling the operation of the device itself;
Display control means for performing control to display a key group including a plurality of numeric keys on the touch panel display,
The key group further includes a specific key for inputting a plurality of specific numbers,
The display control means includes
In the numerical value input using the key group, determination means for determining whether input using the specific key is possible,
An image forming apparatus comprising: a switching unit configured to switch the specific key to either a state in which an input operation is possible or a state in which an input operation is not possible in accordance with a determination result of the determination unit. The determination means includes means for determining whether or not a maximum value that can be input by the input of the specific key is exceeded,
When it is determined that the maximum value that can be input by the input of the specific key is exceeded, the switching unit disables the input operation of the specific key, and sets the maximum value that can be input by the input of the specific key. The image forming apparatus according to claim 1, wherein when it is determined that the number does not exceed, the specific key is set in a state in which an input operation is possible. The determination means includes
First means for determining whether or not a maximum number of digits that can be input by input of the specific key is exceeded;
Second means for determining whether or not a maximum value that can be input by the input of the specific key is exceeded,
The switching means is
When it is determined by the first means that the maximum number of digits that can be input by input of the specific key is exceeded, or the maximum number of digits that can be input by input of the specific key by the first means does not exceed If it is determined that the second means exceeds the maximum value that can be input by the input of the specific key, the specific key is set in a state in which an input operation is disabled,
2. The image formation according to claim 1, wherein when the second means determines that the maximum value that can be input by the input of the specific key does not exceed, the specific key is set in a state in which an input operation is possible. apparatus.   When the input operation of the specific key is switched to a disabled state, the touch panel display displays a notification screen for notifying the user that the input operation using the specific key cannot be performed in response to the user pressing the specific key. The image forming apparatus according to claim 1, further comprising a notification unit for displaying the image on the screen. A touch panel display;
In response to an input from the touch panel display, a control means for controlling the operation of the device itself;
Display control means for performing control to display a key group including a plurality of numeric keys on the touch panel display,
The key group further includes a specific key for inputting a plurality of specific numbers,
The display control means includes
In the numerical value input using the key group, determination means for determining whether input using the specific key is possible,
An image forming apparatus comprising: a switching unit for switching between display and non-display of the specific key according to a determination result of the determination unit. The determination means includes means for determining whether or not a maximum value that can be input by the input of the specific key is exceeded,
When it is determined that the maximum value that can be input by the input of the specific key is exceeded, the switching unit is determined not to display the specific key and not exceed the maximum value that can be input by the input of the specific key. The image forming apparatus according to claim 5, wherein the specific key is displayed in the case of a failure. The determination means includes
First means for determining whether or not a maximum number of digits that can be input by input of the specific key is exceeded;
Second means for determining whether or not a maximum value that can be input by the input of the specific key is exceeded,
The switching means is
When it is determined by the first means that the maximum number of digits that can be input by input of the specific key is exceeded, or the maximum number of digits that can be input by input of the specific key by the first means does not exceed If it is determined that the maximum value that can be input by the input of the specific key is determined by the second means, the specific key is hidden.
The image forming apparatus according to claim 5, wherein the specific key is displayed when it is determined by the second means that the maximum value that can be input by the input of the specific key is not exceeded. A touch panel display;
In response to an input from the touch panel display, a control means for controlling the operation of the device itself;
Display control means for performing control to display a key group including a plurality of numeric keys on the touch panel display,
The key group further includes a specific key for inputting a plurality of specific numbers,
The display control means includes
In the numerical value input using the key group, determination means for determining whether input using the specific key is possible,
An image forming apparatus comprising: a switching unit configured to switch a display mode of the specific key to either a changed state or a state before the change according to a determination result of the determination unit. The determination means includes means for determining whether or not a maximum value that can be input by the input of the specific key is exceeded,
When it is determined that the maximum value that can be input by the input of the specific key is exceeded, the switching unit changes the display mode of the specific key, and sets the maximum value that can be input by the input of the specific key. The image forming apparatus according to claim 8, wherein when it is determined that the number does not exceed, the display mode of the specific key is set to a state before change. The determination means includes
First means for determining whether or not a maximum number of digits that can be input by input of the specific key is exceeded;
Second means for determining whether or not a maximum value that can be input by the input of the specific key is exceeded,
The switching means is
When it is determined by the first means that the maximum number of digits that can be input by input of the specific key is exceeded, or the maximum number of digits that can be input by input of the specific key by the first means does not exceed If it is determined that the second means exceeds the maximum value that can be input by the input of the specific key, the display mode of the specific key is changed,
The image forming apparatus according to claim 8, wherein when the second means determines that the maximum value that can be input by the input of the specific key does not exceed, the display mode of the specific key is set to the state before the change. . The image forming apparatus according to claim 1, wherein the specific key is a numeric key for inputting two digits of zero.

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