JP5924168B2 - Image forming apparatus, control method thereof, control program thereof, and image forming system - Google Patents

Description

  The present invention relates to an image forming apparatus, a control method therefor, a control program therefor, and an image forming system, and more particularly, to an image forming apparatus that executes a print job according to an instruction from an external device, a control method therefor, and a control program therefor. .

  Conventionally, in an image forming apparatus, when an operation on a remote panel is accepted, a screen is shared between a display panel (also referred to as a main body panel) of the image forming apparatus and a remote panel. In this case, since the same operation screen is displayed on the display panel and the (one or more) remote panels, it is displayed to a plurality of users. For this reason, only one user can operate the screen.

  As a technique for simultaneously operating a plurality of screens as screens for operating the image forming apparatus, for example, Japanese Unexamined Patent Application Publication No. 2007-318519 discloses. In this document, the image forming apparatus searches for and installs a driver and an operation tool for printing suitable for a mobile terminal used for operation on the network, and the user searches for and installs the driver and the operation tool. The trouble of doing can be omitted.

JP 2007-318519 A

  However, according to the technique described in Patent Document 1, it is necessary to previously install a driver for printing and an operation tool on the portable terminal, and depending on the performance on the terminal side, sufficient operability may not be obtained. It was.

  Moreover, in order to cope with a new portable terminal, it becomes necessary to update the driver and the operation tool each time.

  The present invention has been conceived in view of the actual situation, and its purpose is to enable simultaneous remote operation by a plurality of users, and to use the mobile terminal for remote operation regardless of the performance of the mobile terminal. It is to provide an image forming apparatus capable of doing so.

The image forming apparatus according to an aspect of the present invention is an image forming apparatus which generates screen data to be displayed on the screen of the mobile terminal, creating a body panel, the screen data to be displayed on the main panel and the mobile terminal screen An image forming apparatus from a portable terminal , a screen creating unit that holds the screen data, a display unit that displays the screen data held in the holding unit, a transmission unit that transmits the screen data to the portable terminal, A reception unit that receives update information indicating screen update for operation , and the screen creation unit receives the reception unit when a condition for transitioning the screen of the main body panel for operating the image forming apparatus is satisfied. based by creating a screen data based on the received update information is held by the holding unit is a transmission to the mobile terminal to the transmission unit, after the transmission unit transmits the screen data to the portable terminal, the establishment of the condition by Create the screen data of the main body panel Te, it is held by the holding portion, and wherein the Rukoto is displayed on the display unit.

Preferably, the apparatus further includes detection means for detecting an access signal from the mobile terminal, and the screen creation unit displays the screen displayed on the screen of the mobile terminal when the detection means detects only one mobile terminal. As data, screen data indicating a screen similar to the screen of the main body panel is created.
An image forming apparatus according to another aspect of the present invention is an image forming apparatus that creates screen data to be displayed on a screen of a mobile terminal, and the main body panel and screen data to be displayed on the screen of the main body panel and the mobile terminal. A screen creation unit to be created, a holding unit that holds screen data, a display unit that displays screen data held in the holding unit, a transmission unit that transmits screen data to a mobile terminal, and a screen from two or more mobile terminals A receiving unit that receives update information indicating an update of the screen, and the screen creation unit creates screen data based on reception of the update information by the receiving unit when a condition for transitioning the screen of the main body panel is satisfied. The data is stored in the holding unit, and after the transmission unit transmits the screen data to the portable terminal, the screen data of the main body panel is created based on the establishment of the condition and is held in the holding unit.

  Preferably, the screen creation unit creates screen data in descending order of priority between two or more portable terminals, and causes the holding unit to hold the screen data.

  Preferably, the screen creation unit creates screen data in the order in which two or more portable terminals are accessed, and causes the holding unit to hold the screen data.

  Preferably, the screen creation unit is configured to display a screen based on reception of the update information by the reception unit when a condition for transitioning the screen of the main body panel is satisfied in a state where the reception unit receives the update information from two or more portable terminals. Update time by the receiving unit is calculated on the condition that the time required to create the data is calculated and the calculated time is not more than a predetermined time which is a threshold set for screen transition in the main body panel. The screen data based on the reception is generated and held in the holding unit.

Preferably, the condition for shifting the screen of the main body panel is a condition for shifting the main body panel to the sleep state.
Preferably, the screen data of the main body panel is screen data for displaying one of the plurality of layers, and the screen data displayed on the screen of the mobile terminal is displayed on two or more of the plurality of layers. Screen data including the contents.
Preferably, when the screen data to be transmitted to the mobile terminal is held in the holding unit, the display unit lowers the brightness of the screen than when the screen data to be displayed on the display unit is held. .

An image forming apparatus control method according to an aspect of the present invention is an image forming apparatus control method executed by a computer of an image forming apparatus that creates screen data to be displayed on a screen of a mobile terminal. The apparatus includes a main body panel, a screen creation unit that creates screen data to be displayed on the screen of the main body panel and the mobile terminal, a holding unit that holds the screen data, and a display unit that displays the screen data held in the holding unit. The control method includes a step of receiving update information indicating update of the screen for operating the image forming apparatus from the portable terminal , and a condition for transitioning the screen of the main body panel for operating the image forming apparatus is established. The screen data based on the update information is created and held in the holding unit, and the screen data based on the update information held in the holding unit is stored in the portable terminal. Transmitting, after the transmission of the screen data to the mobile terminal, to create a screen data of the main body panel based on establishment of the condition, the step of holding the holding portion, the screen data of the main body panel held by the holding portion And a step of displaying on the display unit .
An image forming apparatus control method according to another aspect of the present invention is a control method for an image forming apparatus executed by a computer of an image forming apparatus that creates screen data to be displayed on a screen of a mobile terminal. The forming apparatus includes a main body panel, a screen creating unit that creates screen data to be displayed on the screens of the main body panel and the mobile terminal, a holding unit that holds the screen data, and a display unit that displays the screen data held in the holding unit. The control method creates a screen data based on the update information when a step for receiving update information indicating screen update from two or more portable terminals and a condition for transitioning the screen of the main body panel are satisfied. And holding in the holding unit, transmitting the screen data based on the update information held in the holding unit to the mobile terminal, and transmitting the screen data to the mobile terminal Later, creates the screen data of the main body panel based on establishment of the condition, characterized in that it comprises a step of holding the holding portion.
Preferably, in the step of creating the screen data based on the update information and holding it in the holding unit, the control method creates the screen data in the descending order of priority between the two or more portable terminals and holds it in the holding unit Let
Preferably, in the control method, in the step of creating the screen data based on the update information and holding it in the holding unit, the screen data is created and held in the holding unit in the order in which two or more portable terminals are accessed.
Preferably, in the control method, in the step of creating the screen data based on the update information and holding it in the holding unit, a condition for transitioning the screen of the main body panel in a state where the update information is received from two or more portable terminals is If it is established, the time estimated to be required to create the screen data based on the reception of the update information is calculated, and the calculated time is equal to or less than a predetermined time that is a threshold set for screen transition in the main body panel. As a condition, screen data based on reception of update information is created and held in the holding unit.

An image forming apparatus control program according to an aspect of the present invention is an image forming apparatus control program executed by a computer of an image forming apparatus that creates screen data to be displayed on a screen of a portable terminal. The apparatus includes a main body panel, a screen creation unit that creates screen data to be displayed on the screen of the main body panel and the mobile terminal, a holding unit that holds the screen data, and a display unit that displays the screen data held in the holding unit. The control program creates screen data based on the update information when a step for receiving update information indicating screen update from the mobile terminal and a condition for transitioning the screen of the main body panel are satisfied. It is held by the holding portion Te, comprising the steps of Ru to display the screen data of the main body panel held by the holding unit on the display unit, which is held in the holder Based on new information, creating and transmitting screen data for operating the image forming apparatus to the mobile terminal, after the transmission of the screen data to the portable terminal, the screen data of the main body panel based on establishment of the condition And a step of holding the holding unit.
An image forming apparatus control program according to another aspect of the present invention is an image forming apparatus control program executed by a computer of an image forming apparatus that creates screen data to be displayed on a screen of a mobile terminal. The forming apparatus includes a main body panel, a screen creating unit that creates screen data to be displayed on the screens of the main body panel and the mobile terminal, a holding unit that holds the screen data, and a display unit that displays the screen data held in the holding unit. The control program includes a step of receiving update information indicating screen update from two or more portable terminals, and a screen based on the update information when a condition for transitioning the screen of the main body panel is satisfied. Creating data and holding the data in the holding unit; and transmitting screen data based on the update information held in the holding unit to the mobile terminal. And flop, after the transmission of the screen data to the mobile terminal, to create a screen data of the main body panel based on establishment of the condition, characterized in that to execute the steps of holding the holding portion.
Preferably, in the step of causing the computer to create screen data based on the update information and hold it in the holding unit, the control program creates and holds the screen data in descending order of priority between the two or more mobile terminals. To hold the part.
Preferably, in the step of causing the computer to generate screen data based on the update information and holding it in the holding unit, the program creates screen data for the two or more portable terminals in the order of access and holds them in the holding unit Let
Preferably, the program causes the screen of the main body panel to transition while receiving update information from two or more portable terminals in the step of causing the computer to generate screen data based on the update information and holding the screen data in the holding unit. When the condition is satisfied, a time that is predicted to be required to generate screen data based on reception of update information is calculated, and the calculated time is a predetermined threshold that is set for screen transition in the main body panel. Screen data based on reception of update information is created on the condition that it is less than or equal to the time, and is held in the holding unit.

An image forming system according to the present invention is an image forming system that includes a mobile terminal and the above-described image forming apparatus that creates screen data to be displayed on the screen of the mobile terminal. An update information transmitting unit that transmits update information indicating screen update is included .

  According to the present invention, when the condition for transitioning the screen of the main body panel is satisfied, the screen data for the mobile terminal is generated and transmitted to the mobile terminal, and then the screen data of the main body panel is generated and the main body panel The screen of is transitioned.

  Thereby, in the image forming apparatus, the holding unit can be used for both the display of the main body panel and the display of the portable terminal. This enables simultaneous use by multiple users while minimizing the hardware resources used as a holding unit in the image forming device, and also generates screen data for display of mobile terminals on the main body panel side. Therefore, the mobile terminal can be used as a remote terminal without being affected by the performance of the mobile terminal.

It is a schematic diagram which shows the whole structure containing the terminal device according to embodiment of this invention. It is a schematic diagram which shows the structure of MFP (Multi-Function Peripheral) 1 operated by the terminal device 2 according to embodiment of this invention. It is a schematic diagram which shows the structure of the terminal device 2 according to embodiment of this invention. It is an external view of the operation panel 110 of MFP1 operated by the terminal device 2 according to the embodiment of the present invention. Fig. 11 is a schematic diagram for explaining internal data exchange of MFP 1 operated by terminal device 2 according to the embodiment of the present invention. It is a figure which shows an example of the user interface (tab display mode) provided in the terminal device 2 according to embodiment of this invention. It is a figure which shows the other example of the user interface (tab display mode) provided in the terminal device 2 according to the embodiment of the present invention. It is a figure which shows an example of the screen displayed by 2nd graphic data. It is a figure which shows the other example of the screen displayed by 2nd graphic data. It is a figure which shows the further another example of the screen displayed by 2nd graphic data. FIG. 10 is a sequence diagram illustrating a procedure for updating display contents on the operation panel 110 in accordance with an operation on the operation panel 110. 6 is a diagram showing an example of a screen displayed on operation panel 110 of MFP 1. FIG. FIG. 10 is a sequence diagram showing a procedure for updating a display screen on the terminal device 2 in response to an operation from the terminal device 2. It is a figure which shows an example of the screen after the update with respect to the screen of FIG. It is a figure which shows an example of the screen after the update with respect to the screen of FIG. It is a figure which shows an example of the screen after the update with respect to the screen of FIG. 6 is a diagram for explaining transmission of screen data to be displayed on touch panel 208 from MFP 1 to terminal device 2. FIG. 6 is a diagram for explaining transmission of screen data to be displayed on touch panel 208 from MFP 1 to terminal device 2. FIG. 6 is a diagram for explaining transmission of screen data to be displayed on touch panel 208 from MFP 1 to terminal device 2. FIG. 6 is a diagram for explaining transmission of screen data to be displayed on touch panel 208 from MFP 1 to terminal device 2. FIG. 4 is a flowchart of processing for display control of an operation panel 110 and a touch panel 208 in the MFP 1. It is a figure which shows another example of the screen of 2nd graphic data. It is a figure which shows typically an example of the information which specifies the priority of a terminal device.

  Hereinafter, an image forming apparatus according to the present invention will be described with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected about the component which show | plays the same effect | action and function, and the description is not repeated.

<A. Overall configuration>
First, the overall configuration including the terminal device according to the embodiment of the present invention will be described.

  FIG. 1 is a schematic diagram showing an overall configuration including a terminal device according to an embodiment of the present invention. Referring to FIG. 1, it is assumed that a multi-function peripheral (MFP) connected to network NW is arranged. It is assumed that a wireless repeater 3 for exchanging data with the terminal device 2 through wireless communication (typically, wireless LAN, Bluetooth (registered trademark), etc.) is connected to the network NW.

  The MFP 1 is provided with an operation panel 110 for performing various operations. The user operates the operation panel 110 to give various commands to the MFP 1.

  The terminal device 2 is typically a mobile phone or a smartphone owned by the user. The user operates the terminal device 2 owned by the user to operate the MFP 1. That is, as will be described later, an operation screen displayed on the operation panel 110 is displayed on each terminal device 2 in a display mode suitable for the terminal device 2. Then, the user gives various commands to the MFP 1 by the same operation method as operating the operation panel 110 of the MFP 1.

  Thereby, the user can operate MFP 1 at a position away from MFP 1.

<B. Configuration of MFP 1>
Next, the configuration of the MFP 1 shown in FIG. 1 will be described. FIG. 2 is a schematic diagram showing a configuration of MFP 1 operated by terminal device 2 according to the embodiment of the present invention.

  Referring to FIG. 2, MFP 1 includes a processor 100, a main memory 102, a scanner 104, a print engine 106, a network interface (I / F) 108, an operation panel 110, and a nonvolatile memory 112. .

  The processor 100 is typically configured to include an arithmetic device such as a CPU (Central Processing Unit), and implements processing according to the present embodiment by executing a program stored in advance. More specifically, the display operation logic 120 is generated by executing a program on the processor 100 and provides processing as described later.

  The main memory 102 is typically a volatile storage device such as a DRAM (Dynamic Random Access Memory), and holds a program executed by the processor 100, data necessary for executing the program, and the like. The main memory 102 stores image data to be displayed on the operation panel 110. This portion may be mounted as a VRAM (Video Random Access Memory) independently from the main memory 102.

  The nonvolatile memory 112 typically includes a storage device such as a hard disk device or a flash memory, and stores an operation screen displayed on the operation panel 110, attribute information associated therewith, customization information set by the user, and the like.

  The network interface 108 is typically a communication unit for transmitting and receiving data to and from the terminal device 2 (FIG. 1) via the network NW. For example, a LAN adapter and driver software for controlling the LAN adapter are provided. Including. The print engine 106 is a part for performing print processing, and includes a control device for controlling the operation of each unit in addition to a hardware configuration related to print processing.

  The operation panel 110 is a man-machine interface that accepts operations from the user and presents various information to the user. More specifically, the operation panel 110 includes a touch panel (display and pressure sensitive unit) and various operation keys.

<C. Configuration of Terminal Device 2>
Next, the configuration of the terminal device 2 shown in FIG. 1 will be described. FIG. 3 is a schematic diagram showing a configuration of terminal apparatus 2 according to the embodiment of the present invention.

  Referring to FIG. 3, the terminal device 2 is a computer, and includes a CPU 200, a main memory 202, a nonvolatile memory 204, an input unit 206, a touch panel 208, a network interface 210, a wireless communication unit 212, Audio output unit 214. These components are connected to each other via a bus 216.

  The CPU 200 executes various programs including an operating system. The terminal device 2 may be configured to operate under a general-purpose operating system. The main memory 202 functions as a working memory for the CPU 200 to execute a program, and temporarily holds a program developed for execution and various variables necessary for execution. The nonvolatile memory 204 typically stores a program executed by the hard disk or the flash memory CPU 200.

  The input unit 206 includes a group of keys arranged on the surface of the terminal device 2 and receives user operations. The touch panel 208 serving as a display unit displays various types of information to be presented to the user in accordance with commands from the CPU 200 and outputs commands in response to user operations to the CPU 200.

  The network interface 210 exchanges data with various devices including the MFP 1 via the wireless repeater 3 (FIG. 1). The wireless communication unit 212 includes a transmission / reception circuit for performing wide-area communication using a public line.

  The audio output unit 214 is typically a speaker or the like, and provides various types of audio information to the user.

  Typically, the display operation module 220 is dynamically generated by the CPU 200 executing a program, and provides a function for remotely operating the image forming apparatus 1 having the operation panel 110 as described later. The program for providing such a display operation module 220 may be installed in the nonvolatile memory 204 in advance, but may be installed using various methods afterwards.

  For example, a method of installing the program in the terminal device 2 via a storage medium such as a CD-ROM (Compact Disk-Read Only Memory) or a flash memory storing the program, or a method of distributing the program to the terminal device 2 via a network is considered. It is done.

  Furthermore, a program for realizing a remote operation may be downloaded from the MFP 1 to the terminal device 2. In this case, various programs corresponding to the model of the MFP 1 can be provided to the terminal device 2, and the model-dependent processing can be more easily handled.

  The terminal device 2 may be realized as a personal computer using a general-purpose architecture.

<D. Operation panel 110 and internal data exchange>
Next, an overview of operation panel 110 of MFP 1 and data exchange with terminal device 2 according to the present embodiment will be described.

  FIG. 4 is an external view of operation panel 110 of MFP 1 operated by terminal device 2 according to the embodiment of the present invention. Referring to FIG. 4, operation panel 110 has a display unit and a touch panel as an operation unit provided substantially at the center, and a key group including start key 111 is provided as an operation unit on both sides thereof. On this touch panel, an operation screen for operating the MFP 1 is displayed. On the operation panel 110 of the MFP 1, one operation screen is always displayed. On this operation screen, various types of information are displayed, and operation objects (icons) are arranged so that the user can perform a touch operation. When the user touches any operation object, a corresponding command is issued internally, and a transition to another operation screen or various setting operations are performed.

  The MFP 1 is configured to output image data indicating display contents on the operation panel 110 to the terminal device 2 as it is. The MFP 1 is also configured to accept a command from the terminal device 2.

  FIG. 5 is a schematic diagram for explaining internal data exchange of MFP 1 operated by terminal device 2 according to the embodiment of the present invention. Referring to FIG. 5, display operation logic 120 (FIG. 2) refers to operation screen data stored in main memory 102 and outputs image data to a touch panel (display 110 a) of operation panel 110. The display operation logic 120 accepts a corresponding operation command in response to a user operation on the touch panel (the pressure sensitive unit 110b or the key group 110c) of the operation panel 110. The display operation logic 120 appropriately updates the operation screen displayed on the operation panel 110 according to the operation command, or issues various internal commands according to the operation command.

  Image data output from the display operation logic 120 to the operation panel 110 is output to the terminal device 2 in parallel. That is, the display operation logic 120 can output the same image data to the operation panel 110 and the terminal device 2. Note that image data is transmitted from the display operation logic 120 to the terminal device 2 through the network interface 108 (FIG. 2).

  In addition, the operation command from the terminal device 2 can be (logically) superimposed on the operation command transmission path from the operation panel 110 to the display operation logic 120. That is, the display operation logic 120 accepts an operation command issued when the user operates the terminal device 2 in addition to an operation command issued when the user operates the operation panel 110 without distinction. Therefore, the terminal device 2 can issue an operation command similar to the operation command issued when the user operates the operation panel 110 by emulating an internal command issued by the operation panel 110.

<E. User interface provided by terminal device 2>
(First graphic data)
Next, a user interface provided in terminal device 2 according to the present embodiment will be illustrated.

  FIG. 6 is a diagram showing an example of a user interface (tab display mode) provided in terminal device 2 according to the embodiment of the present invention.

  FIG. 6 shows a screen 500 having the same configuration as the screen displayed on operation panel 110. The screen 500 is a screen on which one of the four tabs “basic”, “document specification”, “image quality / density”, and “application” is selected, and the setting contents belonging to the item corresponding to the tab are displayed. is there.

  Screen 500 includes a start button 501 operated to cause MFP 1 to start image formation with the contents set on screen 500. Since the operation panel 110 includes the start key 111, the start button 501 on the screen 500 may be omitted when a screen corresponding to the screen 500 is displayed on the operation panel 110. That is, there is no change in the function between the screen 500 and the screen displayed on the operation panel 110, such as omitting software buttons that are not required to be displayed by keys or the like provided on the operation panel 110. The display may differ depending on the range.

  When an operation for switching the item to be selected is performed on such a screen 500, the screen displayed on the operation panel 110 or the touch panel 208 is updated.

  For example, when the “original specification” item is selected, the displayed screen is switched to a screen that displays setting contents belonging to the item “original specification”.

  In addition, when an operation for selecting or canceling the displayed setting content (menu) on the screen 500 as shown in FIG. 6 is performed, the displayed screen displays the selection state of the menu. Switch to a screen that has been updated to change. For example, the screen 500 shown in FIG. 6 includes four menus of “single side”, “double side”, “2 in 1”, and “4 in 1” as the setting contents of <both sides / page aggregation>, in which “single side” is selected. Shows. In the example of FIG. 6, the selected state is realized by displaying the menu with a bold line. When an operation for switching the menu to be selected from “single side” to “double side” is performed, the display screen is switched as shown in FIG.

  The screen 510 shown in FIG. 7 shows a state in which “both sides” is selected from the four menus of <both sides / page aggregation>.

  In this specification, graphic data for displaying a screen displayed in the tab display mode (a screen similar to the screen to be displayed on the operation panel 110 of the MFP 1) is also referred to as “first graphic data”.

(Second graphic data)
In the present embodiment, two or more terminal devices 2 can access the MFP 1 simultaneously. In such a case, the MFP 1 displays a screen including a plurality of tabs (tab display mode screen) similar to that displayed on the operation panel 110 of the MFP 1 for some of the plurality of terminal devices 2. However, for the remaining terminal devices 2, a screen including more menus than the screen is displayed. In this specification, the graphic data for displaying such a screen is also referred to as “second graphic data”.

  8 to 10 are diagrams illustrating examples of screens displayed by the second graphic data.

  A screen 600 in FIG. 8 displays all menus to be displayed on each of the four tabs of “basic”, “original specification”, “image quality / density”, and “application” on the screen 500 on one screen.

  As in the screen 600 of FIG. 8, the screen 700 of FIG. 9 has a single menu to be displayed on each of the four tabs “basic”, “document specification”, “image quality / density”, and “application” of the screen 500. Display on screen. In this embodiment, the screen 500 in FIG. 6 and the screen 600 in FIG. 8 are color screens (screens including three or more colors), whereas the screen 700 in FIG. 9 is a monochrome screen (white and black). Etc.).

  A screen 800 in FIG. 10 is a partial menu among the menus to be displayed on each of the four tabs of “basic”, “original specification”, “image quality / density”, and “application” of the screen 500, specifically, “ It is a screen that displays only menus belonging to the “Basic” tab. When the screen 800 is displayed on the terminal device 2, the user of the terminal device 2 can make print settings only for the menu belonging to the “basic” tab.

<F. Processing procedure>
FIG. 11 is a sequence diagram illustrating a procedure for updating display contents on the operation panel 110 in accordance with an operation on the operation panel 110.

  Referring to FIG. 11, when the user touches any position on operation panel 110 (sequence SQ400), MFP 1 converts it to an operation coordinate position indicating which position on the operation screen is touched (sequence). SQ402).

  Then, MFP 1 executes a setting process corresponding to the operation coordinate position and updates the display content according to the process (sequence SQ404). The update of the display content here means generation of screen data to be displayed on the screen after the update (in this specification, image data to be displayed on the screen is also referred to as screen data).

  Then, MFP 1 updates the display content of operation panel 110 (sequence SQ406).

FIG. 12 is a diagram illustrating an example of a screen displayed on the operation panel 110 of the MFP 1.
A screen 400 in FIG. 12 shows a part of a menu arranged in two or more layers, similarly to the screen 500 in FIG.

  Specifically, in the MFP 1, four menus of “basic”, “original specification”, “image quality / density”, and “application” are set as the first layer. Under these, a menu showing specific setting contents is set.

  For example, under the “basic” menu, there are four menus of “color”, “paper”, “magnification”, and “double-side / page aggregation” as the second layer.

  On the screen 400, software buttons for setting four menus included in the “basic” menu are displayed.

Next, the update of the screen in the terminal device 2 will be described.
When the user operates the terminal device 2 to start a program related to remote operation according to the present embodiment, the terminal device 2 validates the network interface 210 (FIG. 3) and tries to connect to the MFP 1. Then, the terminal device 2 determines whether it is connected to the MFP 1. If it is not connected to the MFP 1, connection is attempted until it is connected.

  When connected to the MFP 1, the terminal device 2 acquires image data (synonymous with graphic data in this specification) indicating the display content on the operation panel 110 at that time from the MFP 1. The image data acquired here differs depending on how many terminal devices 2 are accessing the MFP 1 at that time. Specifically, image data on any of the screens shown in FIG. 6 or FIGS. 8 to 10 is transmitted to the terminal device 2. Which image data is transmitted to the terminal device 2 will be described later.

  FIG. 13 is a sequence diagram illustrating a procedure for updating the display screen in the terminal device 2 in response to an operation from the terminal device 2. FIG. 13A shows a sequence when the screen of the first graphic data (FIG. 6) is displayed on the terminal device 2, and FIG. 13B shows the second graphic on the terminal device 2. The sequence when the data screen (FIGS. 8 to 10) is displayed is shown.

  First, referring to FIG. 13A, when the user touches any position on touch panel 208 (sequence SQ100), information on the touched position is transmitted to CPU 200 of terminal device 2 (sequence SQ102). The CPU 200 of the terminal device 2 changes the position touched by the user to the operation coordinate position indicating which position on the operation screen is touched based on the relationship between the display position and the size of the displayed main display area. Conversion is performed (sequence SQ104). CPU 200 of terminal device 2 transmits the operation coordinate position to MFP 1 (sequence SQ106).

  When MFP 1 receives the operation coordinate position from terminal device 2, MFP 1 executes a corresponding setting process and updates the display content on operation panel 110 according to the process (sequence SQ108). The display content after the update corresponds to the display content that has been changed over the entire screen with respect to the display content before the update. That is, the MFP 1 generates image data for the entire screen when updating the display content.

  CPU 200 of terminal device 2 acquires image data indicating the display content after switching (updated operation screen) on operation panel 110 from MFP 1 (sequence SQ110). Subsequently, CPU 200 of terminal device 2 displays the acquired image data (updated operation screen) on touch panel 208 (sequence SQ112).

  The screen displayed on the touch panel 208 of the terminal device 2 is updated, for example, from the screen 500 in FIG. 6 to the screen 510 in FIG. 7 by the procedure described with reference to FIG.

  Next, with reference to FIG. 13B, a sequence for updating the screen when the image of the second graphic data is displayed on the terminal device 2 will be described. In the sequence shown in FIG. 13B, the sequences SQ108, 110, and 112 are changed to the sequences SQ109, 111, and 113, respectively, as compared with the sequence shown in FIG. .

  Referring to FIG. 13B, when the user touches any position on touch panel 208 (sequence SQ100), information on the touched position is transmitted to CPU 200 of terminal device 2 (sequence SQ102). The CPU 200 of the terminal device 2 changes the position touched by the user to the operation coordinate position indicating which position on the operation screen is touched based on the relationship between the display position and the size of the displayed main display area. Conversion is performed (sequence SQ104). CPU 200 of terminal device 2 transmits the operation coordinate position to MFP 1 (sequence SQ106).

  When MFP 1 receives the operation coordinate position from terminal device 2, MFP 1 executes a corresponding setting process and the like, and determines the display position of the selected mark on touch panel 208 according to the process (sequence SQ109).

  The selected mark is an image indicating that a set item is selected from the menu displayed on the touch panel 208. In the present embodiment, the graphic data to be additionally displayed to indicate that the menu setting is completed with respect to the second graphic data is constituted by the image data for displaying the selected mark.

  Then, MFP 1 transmits the selected mark image, the determined display position, and the selected mark display instruction to terminal device 2 (sequence SQ111).

  CPU 200 of terminal device 2 displays the image of the selected mark received from MFP 1 so as to overlap the already displayed screen at the designated display position (sequence SQ113).

  FIG. 14 to FIG. 16 are diagrams showing examples of the updated screens with respect to FIG. 8 to FIG. 10, respectively.

  In the screen 610 of FIG. 14, each of the menus of “auto color” “A4” “× 1.00” “single side” “original A4” “character” “(density) 5” is compared with the screen 600 of FIG. A filled circular image is displayed on the upper right of. This circular image is an example of the “selected mark”. This means that the terminal device 2 on which the screen 600 of FIG. 8 is displayed has been operated to select these menus. That is, the screen 610 corresponds to a display in which these circular images are displayed on the screen 600 of FIG.

  Note that the screen 610 in FIG. 14 may be displayed when all of the menus on which the circular images are superimposed are selected at a time and the screen 610 is displayed, or every time a part of these menus is selected. In addition, a selection mark may be added and displayed on the upper right of the selected menu, and as a result, it may be displayed on the touch panel 208.

  In the screen 710 of FIG. 15, each of the menus of “auto color”, “A4”, “× 1.00”, “single side”, “original A4”, “character”, and “(density) 5” is compared with the screen 700 of FIG. The above circular image is displayed on the upper right of the screen. This means that an operation for selecting these menus has been performed on the terminal device 2 on which the screen 700 of FIG. 9 is displayed. That is, the screen 710 corresponds to a display in which these circular images are displayed on the screen 700 in FIG.

  In the screen 810 of FIG. 16, the above circular image is displayed on the upper right of each of the menus “Auto Color”, “A4”, “× 1.00”, and “One Side” as compared with the screen 800 of FIG. Yes. This means that an operation for selecting these menus has been performed on the terminal device 2 on which the screen 800 of FIG. 10 is displayed. That is, the screen 810 corresponds to a display in which these circular images are displayed on the screen 800 of FIG.

<G. Outline of processing>
FIGS. 17 to 20 are diagrams for explaining transmission of screen data to be displayed on the touch panel 208 from the MFP 1 to the terminal device 2.

  First, referring to FIG. 17, in MFP 1, screen data to be displayed on touch panel 208 of terminal device 2 is temporarily stored in VRAM for operation panel 110, and transmitted to terminal device 2 from the VRAM. In the terminal device 2, the screen data received from the MFP 1 is stored in the VRAM for the touch panel 208 and displayed on the touch panel 208.

  That is, in the MFP 1, the VRAM of the operation panel 110 is also used as a memory that holds screen data to be displayed on the touch panel 208.

  In MFP 1, the screen to be displayed on touch panel 208 is also displayed on operation panel 110 as indicated by “A” in FIG. 17.

  In the MFP 1, when screen data to be displayed on the touch panel 208 is stored in the VRAM of the operation panel 110, the operation panel 110 should be displayed by turning off the operation panel 110 as shown in FIG. 18. It is preferable to reduce the brightness of the screen (such as an operation screen based on an operation on the operation panel 110).

  Further, in the MFP 1, after the screen data stored in the VRAM of the operation panel 110 is transmitted to the touch panel 208, the MFP 1 is erased from the VRAM as shown in FIG. Thereby, if another screen data is subsequently written in the VRAM of the operation panel 110, a screen different from the screen displayed on the touch panel 208 is displayed on the operation panel 110. In the MFP 1, screen data that does not need to be displayed on the touch panel 208, such as a screen to be displayed on the operation panel 110, is not transmitted to the terminal device 2.

  In FIG. 19, the operation panel 110 displays a screen indicated by “A”, and the touch panel 208 displays a screen indicated by “B” (different from the screen indicated by “A”). The state is shown. Further, when the storage contents of the VRAM of the operation panel 110 are rewritten, the display contents on the operation panel 110 are indicated by “C” without changing the display contents on the touch panel 208 as shown in FIG. To the screen).

<H. Processing flow>
FIG. 21 is a flowchart of processing for display control of operation panel 110 and touch panel 208 in MFP 1.

  In step S10, the processor 100 of the MFP 1 determines whether or not the terminal device 2 is being used (that is, some operation has been performed on the touch panel 208 of the terminal device 2). The process proceeds to step S20, and if it is determined that it is not used, the process is terminated. Note that the process of FIG. 21 is executed at specific times. Further, it is determined that the terminal device 2 is being used when an operation other than the touch operation of the touch panel 208 is performed, such as vibration is applied to the terminal device 2 main body.

  In step S20, the processor 100 determines whether or not the operation panel 110 is in use. If it is determined that it is in use, the process proceeds to step S60. If it is determined that it is not in use, the process proceeds to step S30. The operation panel 110 being in use means, for example, that the operation panel 110 has not shifted to the sleep state. The MFP 1 shifts to a sleep state when the operation panel 110 is not operated for a predetermined time, or when image formation or image processing is not performed in the MFP 1. At this time, the operation panel 110 also enters the sleep state and is turned off. In such a case, NO is determined in step S20, and the process proceeds to step S30.

  In step S30, the processor 100 transmits screen data to the terminal device 2 in accordance with the processing described with reference to FIG. 12 according to the operation in the terminal device 2, and advances the processing to step S40.

  In step S40, the processor 100 performs an operation such as setting on the job according to the information transmitted from the terminal device 2, and advances the process to step S50.

  In step S50, the processor 100 determines whether or not the input for the job from the terminal device 2 has been completed, and proceeds to step S140 if it is determined that the input has been completed. On the other hand, if it is determined that the process has not been completed, the process returns to step S20, and screen data is transmitted to the terminal apparatus 2 in accordance with the operation from the terminal apparatus 2 until the process is completed. Thereby, in terminal device 2, screen data transmitted from MFP 1 in response to an operation on touch panel 208 is displayed on touch panel 208. Further, the display content is updated as necessary by repeating Steps S20 to S50 or performing Steps S100 and S110, which will be described later, until input for the job is completed.

  In step S60, the processor 100 determines whether or not a display screen transition occurs on the operation panel 110. If it is determined that a transition occurs, the processor 100 proceeds to step S80, and if it does not occur, the process proceeds to step S70. Proceed. The transition of the display screen means that the screen to be displayed on the operation panel 110 is updated by an operation on the operation panel 110 or a change in the state of the MFP 1. For example, when the operation panel 110 is operated to change the tab to be selected with respect to the screen 500 in FIG. 6, the display screen of the operation panel 110 displays a menu of the newly selected tab. As updated. In addition, when an error such as a jam occurs on the operation panel 110 and the error needs to be notified, the display screen of the operation panel 110 is updated to notify the error.

  In step S70, the processor 100 determines whether or not the job being executed in the MFP 1 has been completed. If it is determined that the job has been completed, the processor 100 proceeds to step S80, and if the job is not being executed or is being executed. If it is determined that it has not, the process returns to step S60.

  In step S80, the processor 100 turns off the backlight of the operation panel 110 and proceeds to step S90.

  In step S90, the processor 100 clears the stored contents of the VRAM of the operation panel 110, and advances the process to step S100.

  In step S100, the processor 100 creates (draws) screen data of a screen (simple operation screen in FIG. 21) to be displayed on the touch panel 208 of the terminal device 2, and advances the process to step S110. The screen data created here is written in the VRAM of the operation panel 110. The screen data created here is screen data corresponding to the operation in the terminal device 2 detected in step S10.

  In the present embodiment, it is assumed that the screen of the second graphic data is displayed on the terminal device 2. That is, the simple operation screen in FIG. 21 corresponds to the second graphic data screen.

  In step S110, the processor 100 transmits the screen data stored in the VRAM of the operation panel 110 to the terminal device 2, and proceeds to step S120.

  The data transmitted here may be the second graphic data, or for the terminal device 2 to which the second graphic data has already been transmitted, the above selected mark and its display position. There can be.

  In step S120, the processor 100 stores the information transmitted to the terminal device 2 in a buffer, and proceeds to step S130. As information stored here, for example, whether or not the second graphic data has already been sent, and if it has been sent, the selected mark has already been sent, and if it is sent, what is the display position? Such as whether or not correct position information has been sent. In particular, when the position information of the selected mark is transmitted to the terminal device 2 next time, the position information is used to determine whether or not it is necessary to transmit an instruction to change the display position of the mark.

  In step S130, the processor 100 clears the stored contents of the VRAM of the operation panel 110 into which the screen data has been written in step S100, and advances the process to step S140.

  In step S140, the processor 100 creates (draws) screen data to be displayed on the operation panel 110, and advances the process to step S150. The screen data created here is the screen data to be displayed after the transition of the transition detected in step S60.

  In step S150, the processor 100 resumes lighting of the backlight of the operation panel 110, displays the screen data created in step S140 on the operation panel 110, and ends the processing.

  Through the display control process described above, the MFP 1 uses the VRAM for the operation panel 110 for the operation panel 110 and the touch panel 208 of the terminal device 2. As a result, even when the number of terminal devices 2 that access the MFP 1 increases, it is not necessary to increase the number or capacity of the VRAMs provided in the MFP 1, and thus the MFP 1 can be manufactured at a lower cost.

  The screen drawing for the touch panel 208 of the terminal device 2 is performed when the operation panel 110 is not used or when the display is updated on the operation panel 110 even when the operation panel 110 is used. . Thereby, in MFP 1, it is possible to avoid as much as possible the display of operation panel 110 itself from causing discomfort to the user of MFP 1 due to interference such as temporarily stopping for drawing the screen of touch panel 208.

  When the MFP 1 performs screen drawing on the touch panel 208, the brightness of the display on the operation panel 110 is controlled to decrease as described in step S80. Thereby, even if the display screen of the touch panel 208 that does not need to be displayed on the operation panel 110 is stored in the VRAM of the operation panel 110, the display can be made invisible (or difficult to see) to the user.

<I. Other modified examples>
In the present embodiment described above, drawing of the screen for the terminal device 2 is performed at the screen transition timing of the main body panel (the operation panel 110 of the MFP 1 main body), thereby reducing the waiting time on the terminal device 2 side. The LED backlight can be turned off without any sense of incongruity for the user who operates the MFP 1 main body.

  The screen displayed on the operation panel 110 displays a part of a menu arranged in a hierarchical structure (FIG. 6 and the like), whereas the screen displayed on the terminal device 2 is a second graphic. As explained as data, the screen (FIG. 8 etc.) was used to display all menus simultaneously.

  The MFP 1 may change the type of screen displayed on the terminal device 2 according to the number of terminal devices that have already accessed the MFP 1 when the terminal device 2 has accessed. For example, when the terminal device 2 has accessed the MFP 1, if no other terminal device has accessed the MFP 1, that is, if the number of the terminal devices 2 accessing the MFP 1 is only one, The terminal device 2 may display a screen similar to that displayed on the operation panel 110 (a screen created in such a manner as to display a part of a menu arranged in a hierarchical structure).

  In such a case, it is assumed that the number of times of updating the screen in the terminal device 2 is larger than in the case of displaying the screen shown in FIG. That is, it is predicted that the processing load of the processor 100 for creating the screen data to be displayed on the terminal device 2 may be larger than when the screen illustrated in FIG. 8 or the like is displayed. In this regard, by limiting to the case where the number of terminal devices 2 accessing the MFP 1 is “1”, it is possible to avoid as much as possible the situation in which the burden on the processor 100 is greatly increased and the display on the operation panel 110 is hindered. can do.

  On the other hand, another example of what is displayed as the second graphic data screen can be given. FIG. 22 is a diagram showing still another example of the second graphic data screen.

  Referring to FIG. 22, on screen 900, software keys 901 to 905 that allow one-touch selection of a combination of a plurality of menus and the display on terminal device 2 are returned to the screen as shown in FIG. 6. The software key 906 is included. For example, the MFP 1 can create a screen including, as software keys 901 to 905, a combination of menus instructed to be executed with high frequency in the MFP 1, and can transmit the screen to the terminal device 2.

  In the present embodiment, when the processor 100 receives screen update requests from two or more terminal devices 2, the processor 100 may draw the screens in the order in which the requests are received and transmit them to each terminal device 2. The screens may be drawn and transmitted to each terminal device 2 according to the above order. In the latter case, the MFP 1 stores information (priority table) for specifying the priority order of terminal devices as shown in FIG. 23, for example. FIG. 23 shows a state where the information is stored in the order of higher priority IDs of a plurality of terminal devices.

  Then, the processor 100 refers to the information, draws a screen in order of the terminal device 2 with the highest priority, and transmits it to each terminal device 2 in step S30 or step S100.

  Further, in MFP 1, when operation panel 110 is in use, two or more terminal devices from the reception of a screen update request from a certain terminal device 2 in step S 10 to the execution of the processing in step S 80 and subsequent steps. When receiving the display update request from 2, the processor 100 creates screen data corresponding to all the display update requests accumulated so far in step S100. However, the processor 100 may create only part of the screen data in some cases, and may create the other screen data the next time step S100 is executed.

  Specifically, for example, it is assumed that the MFP 1 has a threshold value that defines an upper limit of the time from turning off the backlight of the operation panel 110 in step S80 to relighting in step S150. Then, in step S100, the processor 100 calculates a predicted value of the time required for creating the screen data corresponding to each display update request, and the sum of the predicted values of the creation times of the screen data of all the display update requests is calculated as described above. When the upper limit of the time from turning off to relighting is exceeded, some display update requests are selected so that the upper limit is not exceeded, and screen data is created only for that. Thereby, the MFP 1 can efficiently create the screen data of the terminal device 2.

  Further, in the present embodiment, transition of the display screen of the operation panel 110 has been cited as a condition for proceeding from step S60 to step S80. The screen transition here may be an update of the display content of the operation panel 110 as described above, or may be a transition of the operation panel 110 to the sleep state. In the latter case, turning off the backlight in step S80 can more reliably avoid giving a sense of discomfort to the user of the operation panel 110.

  Each embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. In addition, the invention described in the embodiment and each modification is intended to be carried out independently or in combination as much as possible.

  1 MFP, 2 terminal device, 3 wireless repeater, NW network.

Claims (20)

In an image forming apparatus that creates screen data to be displayed on the screen of a mobile terminal,
The main body panel,
A screen creation unit for creating screen data to be displayed on the screen of the main body panel and the mobile terminal;
A holding unit for holding the screen data;
A display unit for displaying the screen data held in the holding unit;
A transmission unit for transmitting the screen data to the mobile terminal;
A receiving unit that receives update information indicating an update of the screen for operating the image forming apparatus from the portable terminal;
The screen creation unit creates screen data based on reception of the update information by the reception unit when the condition for transitioning the screen of the main body panel for operating the image forming apparatus is satisfied and holds the screen data The transmission unit to transmit to the mobile terminal, and after the transmission unit transmits the screen data to the mobile terminal, the screen data of the main body panel is created based on the establishment of the condition, wherein is held by the holding portion, and wherein the Rukoto is displayed on the display unit, the image forming apparatus. It further comprises detection means for detecting an access signal from the mobile terminal,
The screen creation unit displays a screen similar to the screen of the main body panel as screen data to be displayed on the screen of the mobile terminal when the detection unit detects only one mobile terminal. The image forming apparatus according to claim 1, which creates data . In an image forming apparatus that creates screen data to be displayed on the screen of a mobile terminal,
The main body panel,
A screen creation unit for creating screen data to be displayed on the screen of the main body panel and the mobile terminal;
A holding unit for holding the screen data;
A display unit for displaying the screen data held in the holding unit;
A transmission unit for transmitting the screen data to the mobile terminal;
A receiving unit that receives update information indicating update of the screen from two or more of the mobile terminals,
The screen creation unit creates screen data based on reception of the update information by the reception unit and holds the screen data in the holding unit when a condition for transitioning the screen of the main body panel is satisfied, and the transmission unit An image forming apparatus, wherein after the screen data is transmitted to the portable terminal, the screen data of the main body panel is created based on the establishment of the condition and is held in the holding unit. The image forming apparatus according to claim 3 , wherein the screen creation unit creates the screen data in descending order of priority between two or more portable terminals, and holds the screen data in the holding unit. The image forming apparatus according to claim 3 , wherein the screen creation unit creates the screen data in the order in which two or more portable terminals are accessed and holds the screen data in the holding unit. The screen creation unit is configured to receive the update information by the reception unit when a condition for transitioning the screen of the main body panel is satisfied in a state where the reception unit receives the update information from two or more portable terminals. Calculate the time expected to be required to create the screen data based on the condition that the calculated time is equal to or less than a predetermined time that is a threshold set for the screen transition in the main body panel by creating a screen data based on the reception of the update information by the receiving unit is held in the holding unit, an image forming apparatus according to any one of claims 3 to 5. The image forming apparatus according to claim 1 , wherein the condition for transitioning the screen of the main body panel is a condition for transitioning the main body panel to a sleep state. The screen data of the main body panel is screen data for displaying one of a plurality of layers,
The image formation according to any one of claims 1 to 7 , wherein the screen data displayed on the screen of the mobile terminal is screen data including contents displayed in two or more layers of the plurality of layers. apparatus. When the screen data to be transmitted to the mobile terminal is held in the holding unit, the display unit lowers the brightness of the screen than when the screen data to be displayed on the display unit is held. The image forming apparatus according to any one of claims 1 to 8 , wherein: A method of controlling the image forming apparatus executed by a computer of the image forming apparatus for creating screen data to be displayed on a screen of a mobile terminal,
The image forming apparatus includes:
The main body panel,
A screen creation unit for creating screen data to be displayed on the screen of the main body panel and the mobile terminal;
A holding unit for holding the screen data;
A display unit for displaying the screen data held in the holding unit,
The control method is:
Receiving update information indicating an update of the screen for operating the image forming apparatus from the portable terminal;
Creating a screen data based on the update information and holding it in the holding unit when a condition for transitioning the screen of the main body panel for operating the image forming apparatus is satisfied;
Transmitting screen data based on the update information held in the holding unit to the mobile terminal;
After transmitting the screen data to the mobile terminal, creating screen data of the main body panel based on the establishment of the condition, and holding the data in the holding unit ;
And a step of displaying the screen data of the main body panel held by the holding unit on the display unit . A method of controlling the image forming apparatus executed by a computer of the image forming apparatus for creating screen data to be displayed on a screen of a mobile terminal,
The image forming apparatus includes:
The main body panel,
A screen creation unit for creating screen data to be displayed on the screen of the main body panel and the mobile terminal;
A holding unit for holding the screen data;
A display unit for displaying the screen data held in the holding unit,
The control method is:
Receiving update information indicating update of the screen from two or more of the mobile terminals;
When the condition for transitioning the screen of the main body panel is satisfied, creating the screen data based on the update information and holding it in the holding unit;
Transmitting screen data based on the update information held in the holding unit to the mobile terminal;
An image forming apparatus comprising: after the transmission of the screen data to the portable terminal, creating screen data of the main body panel based on the establishment of the condition and holding the screen data in the holding unit. Control method.   In the step of creating the screen data based on the update information and holding the screen data in the holding unit, the screen data is created in descending order of priority between the two or more portable terminals, and held in the holding unit. The method of controlling an image forming apparatus according to claim 11.   The step of creating screen data based on the update information and holding the screen data in the holding unit creates the screen data in the order in which the two or more portable terminals are accessed, and holds the screen data in the holding unit. 11. A method for controlling an image forming apparatus according to 11.   In the step of creating screen data based on the update information and holding the screen data in the holding unit, a condition for transitioning the screen of the main body panel while the update information is received from the two or more portable terminals is established A time that is predicted to be required to generate screen data based on reception of the update information is calculated, and the calculated time is equal to or less than a predetermined time that is a threshold set for screen transition in the main body panel 14. The image forming apparatus control method according to claim 11, wherein screen data based on reception of the update information is generated and held in the holding unit on condition that the update information is received. A control program for the image forming apparatus executed by a computer of the image forming apparatus for creating screen data to be displayed on the screen of the mobile terminal,
The image forming apparatus includes:
The main body panel,
A screen creation unit for creating screen data to be displayed on the screen of the main body panel and the mobile terminal;
A holding unit for holding the screen data;
A display unit for displaying the screen data held in the holding unit,
The control program is stored in the computer.
Receiving update information indicating an update of the screen from the mobile terminal;
When a condition for transitioning the screen of the main body panel is satisfied, screen data based on the update information is created and held in the holding unit ,
A step of screen data of the body panel held by the holding unit Ru is displayed on the display unit,
Transmitting screen data for operating the image forming apparatus to the portable terminal based on the update information held in the holding unit;
An image forming apparatus that, after transmitting the screen data to the portable terminal, creates screen data of the main body panel based on the establishment of the condition and holds the screen data in the holding unit. Control program. A control program for the image forming apparatus executed by a computer of the image forming apparatus for creating screen data to be displayed on the screen of the mobile terminal,
The image forming apparatus includes:
The main body panel,
A screen creation unit for creating screen data to be displayed on the screen of the main body panel and the mobile terminal;
A holding unit for holding the screen data;
A display unit for displaying the screen data held in the holding unit,
The control program is stored in the computer.
Receiving update information indicating update of the screen from two or more of the mobile terminals;
When the condition for transitioning the screen of the main body panel is satisfied, creating the screen data based on the update information and holding it in the holding unit;
Transmitting screen data based on the update information held in the holding unit to the mobile terminal;
An image forming apparatus that, after transmitting the screen data to the portable terminal, creates screen data of the main body panel based on the establishment of the condition and holds the screen data in the holding unit. Control program.   In the step of creating the screen data based on the update information and holding the screen data in the holding unit, the screen data is created in descending order of priority between the two or more portable terminals, and held in the holding unit. A control program for an image forming apparatus according to claim 16.   The step of creating screen data based on the update information and holding the screen data in the holding unit creates the screen data in the order in which the two or more portable terminals are accessed, and holds the screen data in the holding unit. A control program for an image forming apparatus according to claim 17.   In the step of creating screen data based on the update information and holding the screen data in the holding unit, a condition for transitioning the screen of the main body panel while the update information is received from the two or more portable terminals is established A time that is predicted to be required to generate screen data based on reception of the update information is calculated, and the calculated time is equal to or less than a predetermined time that is a threshold set for screen transition in the main body panel The control program for an image forming apparatus according to claim 16, wherein screen data based on reception of the update information is created and held in the holding unit on the condition that the update information is received. An image forming system comprising: a portable terminal ; and the image forming apparatus according to any one of claims 1 to 9, which creates screen data to be displayed on a screen of the portable terminal.
The portable terminal is
An image forming system, comprising: an update information transmitting unit configured to transmit update information indicating update of the screen to the image forming apparatus .

Images