JP2017229101A - Communication device, control method of communication device, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To limit services available for an external device at a time of Wi-Fi Direct connection regarding a plurality of services which the external device has.SOLUTION: A user sets a service as a service to be provided for an external service or a service not to be provided at a time of Wi-Fi Direct connection regarding each of a plurality of services that the external device has.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a communication device, a communication device control method, and a program.

  A standard called Wi-Fi Direct (registered trademark) has been established by Wi-Fi Alliance. In Wi-Fi Direct, a protocol for determining whether a communication apparatus such as a printing apparatus or a PC operates as an access point or a client is defined. By executing this protocol, a communication device to be an access point and a communication device to be a client can be automatically determined. By using this Wi-Fi Direct, it is not necessary to prepare an access point separately, and communication devices can directly perform wireless communication.

  FIG. 1 is a diagram for briefly explaining the processing sequence of Wi-Fi Direct. The printing apparatus and the mobile terminal are examples of information processing apparatuses that support Wi-Fi Direct.

  First, the printing device and the mobile terminal each perform device search in order to specify a communication partner (step S101). When the communication partner is specified by the device search, it is determined which is the access point (Group Owner) and which is the client (Client) (step S102). This process of step S102 is called role determination. In FIG. 1, it is assumed that, as a result of the role determination in step S102, the printing apparatus becomes Group Owner and the mobile terminal becomes Client.

  Next, by using WPS (Wi-Fi Protected Setup) established by Wi-Fi Alliance, by providing parameters for connecting from the printing device that is GroupOwner to the mobile terminal that is Client, Parameters are shared with the portable terminal (step S103). Then, secure connection is performed using the parameters (step S104). Until the processing in step S104 is completed, the communication is executed as data link layer communication of the OSI reference model.

  When the secure connection is completed, addressing for performing IP communication between the printing apparatus and the portable terminal is performed (step S105). At this time, the printing device that is GroupOwner operates as a DHCP server and assigns an IP address to the mobile terminal that is Client. Note that the processing after step S105 enables communication at a higher layer than the network layer of the OSI reference model.

  By performing the above processing, wireless communication is established between the printing apparatus and the portable terminal. By using this wireless communication, the printing apparatus and the portable terminal can directly communicate without preparing a separate access point. Patent Document 1 describes that audio data and photo data are transmitted and received using this Wi-Fi Direct.

JP 2012-199884 A

  The communication device can easily establish wireless communication with an external device by Wi-Fi Direct. The communication apparatus can use various services (for example, printing and storage) provided by the external apparatus using wireless communication established by Wi-Fi Direct.

  However, depending on the environment in which Wi-Fi Direct is used, there is a case where it is not desired to provide a specific service. For example, in the case of a printing apparatus, there is a case where it is desired to prohibit the use of a print service using Wi-Fi Direct in order to limit the use of the print function only when a print job is input from a PC using a wired LAN. Patent Document 1 describes that audio data and photo data are transmitted and received using Wi-FiDirect, but prohibiting the use of these functions is not taken into consideration.

  Therefore, an object of the present invention is to provide a communication device that can set a service to be provided to an external device among a plurality of services.

  In order to solve the above-described problems, a communication device provided by the present invention is a communication device that has a Wi-Fi Direct function and provides a service to an external device that is wirelessly connected by the Wi-Fi Direct function. Setting means for setting a service to be provided to an external device and a service not to be provided to the external device, and a display means for displaying a connection screen related to the Wi-Fi Direct function among a plurality of services of the communication device. The connection screen includes an instruction object that instructs the communication device to execute a connection process for establishing a wireless connection by the Wi-Fi Direct function. Based on the setting result by the setting means, the service provided by the communication device to the external device is a user. There characterized in that it is displayed in a discriminable state.

  According to the present invention, it is possible to set a service to be provided to an external device among a plurality of services.

It is a figure which shows the processing sequence of Wi-Fi Direct. 2 is a diagram illustrating a hardware configuration of a printing apparatus 200. FIG. 2 is a diagram illustrating a software configuration of the printing apparatus 200. FIG. It is a figure which shows the hardware constitutions of the portable terminal. It is a sequence diagram which shows the flow of the whole process. 6 is a diagram illustrating a screen displayed by the printing apparatus 200. FIG. It is a figure which shows the screen which the portable terminal 400 displays. 6 is a flowchart illustrating processing executed by the printing apparatus. 6 is a diagram illustrating a screen displayed by the printing apparatus 200. FIG. It is a flowchart which shows a connection process. 10 is a flowchart showing processing executed by the mobile terminal 400.

  The best mode for carrying out the present invention will be described below with reference to the drawings. The following embodiments do not limit the invention according to the claims, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention.

(Embodiment 1)
FIG. 2 is a diagram illustrating a hardware configuration of the printing apparatus 200. The printing apparatus 200 is an example of a communication apparatus that can perform wireless communication.

  A control unit 201 including a CPU 202 controls the operation of the entire printing apparatus 200. The CPU 202 reads a control program stored in the ROM 204 and performs various controls such as communication control. The RAM 203 is used as a temporary area such as a main memory or work area for the CPU 202. The HDD 205 stores data, various programs, or various information tables. The HDD 205 can store image data transmitted from an external device.

  A printer I / F 206 connects a printer 207 (printer engine) and the control unit 201. The printer 207 executes print processing on a sheet fed from a paper feed cassette (not shown) based on print data input via the printer I / F 206.

  A scanner I / F 208 connects the scanner 209 and the control unit 201. The scanner 209 reads a placed document and generates image data. The image data generated by the scanner 209 is printed by the printer 207, stored in the HDD 205, or transmitted to an external device via the wireless LAN I / F 212 or the wired LAN I / F 213.

  The operation panel I / F 210 connects the operation panel 211 and the control unit 201. The operation panel 211 includes a liquid crystal display unit having a touch panel function, a keyboard, various function keys, and the like. The user can check the screen displayed on the operation panel 211 and can input various instructions to the printing apparatus 200 using the touch panel.

  The wireless LAN I / F 212 performs wireless communication with an external device such as a portable terminal or a PC. Through this wireless communication, the printing apparatus 200 receives print data from the external apparatus, and the printer 207 executes print processing based on the received print data. Further, the image data generated by the scanner 209 can be transmitted to an external device via the wireless LAN I / F 212.

  The wired LAN I / F 213 is connected to a LAN cable (not shown) and can communicate with an external device (not shown).

  In the printing apparatus 200, one CPU 202 uses a single memory (RAM 203) to execute each process shown in a flowchart to be described later, but other modes may be used. For example, a plurality of CPUs and a plurality of memories may be cooperated to execute each process shown in a flowchart described later.

  FIG. 3 is a diagram illustrating a software configuration of the printing apparatus 200. Each functional unit illustrated in FIG. 3 is realized by the CPU 202 executing a control program stored in the ROM 204 or the HDD 205.

  The operation control unit 301 controls the operation panel 211. For example, an operation screen is displayed on the operation panel 211 or an input of a user instruction via the displayed operation screen is accepted. Further, the received user instruction is notified to other functional units, or the operation screen to be displayed is updated according to the received user instruction.

  The storage unit 302 stores designated data in the RAM 203 or the HDD 205 or reads stored data according to instructions from other functional units.

  The wireless communication unit 303 controls wireless communication executed by the wireless LAN I / F 212. The wired communication unit 304 controls communication performed by the wired LAN I / F 213.

  The service unit 305 provides a service to an external device such as a mobile terminal or a PC. In the present embodiment, the service unit 305 includes a print service 306 and a storage service 307. The service provided by the service unit 305 can be used by an external device (for example, a portable terminal 400 described later) after connecting with Wi-Fi Direct.

  A print service 306 provides a print service to an external device. Specifically, print data received from an external device is input to the printer 207, and the printer 207 is caused to execute print processing based on the print data.

  The storage service 307 provides a storage service to an external device. Specifically, an electronic file such as image data received from an external device is stored in a memory such as the HDD 205.

  In the present embodiment, the print service 306 and the storage service 307 are described as examples of services provided by the service unit 305, but other services may be provided.

  FIG. 4 is a diagram illustrating a hardware configuration of the mobile terminal 400. The portable terminal 400 is also an example of a communication device that can perform wireless communication like the printing device 200. The mobile terminal 400 is a device such as a smartphone, a mobile phone, a tablet, or a digital camera.

  The CPU 401 reads the control program stored in the ROM 403 and controls the operation of the entire portable terminal 400. The RAM 402 is used as a temporary area such as a main memory or work area for the CPU 401. The flash memory 404 is a nonvolatile memory for storing data, various programs, or various information tables.

  The operation unit 405 includes a liquid crystal display unit having a touch panel function and hard keys. The user can check the screen displayed on the operation unit 405 and can input various instructions to the printing apparatus 200 using the touch panel.

  A wireless LAN I / F 406 performs wireless communication with an external apparatus such as the printing apparatus 200. For example, the wireless LAN I / F 406 can transmit image data stored in a memory such as the flash memory 404 to the printing apparatus 200 as print data.

  In the portable terminal 400, one CPU 401 uses one memory (RAM 402) to execute each process shown in a flowchart described later, but other modes may be used. For example, a plurality of CPUs and a plurality of memories may be cooperated to execute each process shown in a flowchart described later.

  Next, the processing flow of the entire communication system according to the present embodiment will be described with reference to the sequence diagram of FIG. The communication system according to the present embodiment includes the mobile terminal 400 and the printing apparatus 200. The printing apparatus 200 includes a print service 306 and a storage service 307.

  First, in step S501, the portable terminal 400 and the printing apparatus 200 execute a connection process based on Wi-Fi Direct. The connection process executed in step S501 is the same as the process described with reference to FIG. 1, and the mobile terminal 400 and the printing apparatus 200 can directly perform wireless communication through this connection process.

  In step S <b> 502, the mobile terminal 400 inquires of the printing apparatus 200 about available services (services provided by the printing apparatus 200). Upon receiving this inquiry, the printing apparatus 200 responds to the portable terminal 400 with a service (a service provided by the printing apparatus 200) that can be used in step S503.

  In the present embodiment, not all services provided in the printing apparatus 200, that is, the print service 306 and the storage service 307 are responded in step S503. In the present embodiment, in the printing apparatus 200, a service provided to an external apparatus and a service not provided are set in advance by the user. If the service is provided, the service set in step S503 is responded. If the service is not provided, the service set is not responded in step S503.

  A setting screen 600 in FIG. 6 is a setting screen for the user to set whether to provide a service to an external device for each of the services provided by the printing apparatus 200, and is displayed on the operation panel 211 of the printing apparatus 200. Is done. The setting on the setting screen 600 is applied when using a service using Wi-Fi Direct. In the setting screen 600, it is set that the print service is provided to an external apparatus (use of the service is permitted), and the storage service is not overwhelmed by the external apparatus (use of the service is not permitted). This setting can be changed by the user using an icon 601 and an icon 602, respectively. When the user presses the icon 603 after making a desired setting, the contents set on the setting screen 600 are stored in the memory such as the HDD 205 by the storage unit 302.

  In this embodiment, the setting screen 600 can be set by any user. However, by introducing a user authentication function to the printing apparatus 200, only a specific user (for example, a user having administrator authority) can set the setting screen 600. You may enable it to set.

  In step S504, the mobile terminal 400 that has received the response in step S503 displays a list of available services. The service selection screen 700 in FIG. 7A is an example of a screen displayed in step S504, and is displayed on the operation unit 405 of the mobile terminal 400.

  The service selection screen 700 in FIG. 7A is displayed when a response indicating that the print service and the storage service are available services is received in step S503. On the service selection screen 700, the user can select a desired service from the print service and the storage service using the icon 701 and the icon 702.

  On the other hand, when the response received in step S503 is only the print service, the service selection screen 710 in FIG. 7B is displayed on the operation unit 405 of the portable terminal 400. Unlike the service selection screen 700, the service selection screen 710 does not display storage services.

  When the user selects a desired service on the screen selected in step S504, the service selected by the user in step S505 is used. When the user selects a print service, the portable terminal 400 transmits print data to the printing apparatus 200 in step S505, and the printer 207 of the printing apparatus 200 executes printing based on the print data. If the user selects a storage service, the electronic file selected by the user in step S505 is transmitted from the portable terminal 400 to the printing apparatus 200, and the electronic file received by the printing apparatus 200 in a predetermined storage area such as the HDD 205 is stored. accumulate.

  As described above, the printing apparatus 200 can set a service to be provided to an external apparatus and a service not to be provided on the setting screen 600 for a plurality of services included in the printing apparatus 200. In the external device (for example, the portable terminal 400), only the service set to be provided to the external device can be used when connecting to Wi-Fi Direct.

  In step S503, it is described that only available services are responded. However, unusable services may also be responded. Specifically, a response that the print service can be used and the storage service cannot be used may be returned in step S503. In this case, since the portable terminal 400 can grasp the presence of the storage service, the service selection screen 720 in FIG. 7C is displayed in step S504. On the service selection screen 720, the storage service that is notified that it cannot be used is displayed in an invalid state (for example, displayed in grayout) that does not accept the user's selection, such as the icon 721.

  Next, processing executed by the printing apparatus 200 when performing Wi-Fi Direct connection will be described with reference to the flowchart of FIG. Each step shown in the flowchart of FIG. 8 is processed by the CPU 202 developing and executing a program stored in a memory such as the ROM 204 in the RAM 203. In the printing apparatus 200, it is assumed that whether or not each service provided in the printing apparatus 200 is provided to an external apparatus is set in advance by the user on the setting screen 600 in FIG.

  First, in step S801, the operation panel 211 displays a reception screen. The reception screen displayed in step S801 is a screen for receiving an execution instruction for executing a connection process based on Wi-Fi Direct from the user. An example of the reception screen displayed in step S801 will be described with reference to FIG.

  A reception screen 900 in FIG. 9A is an example of a reception screen displayed in step S801. The reception screen 900 is a screen that is displayed when the setting screen 600 is set in advance to “provide” the print service to the external device and the storage service to “do not provide” to the external device. When the user selects the icon 901, connection processing based on Wi-Fi Direct is executed. Although both the available service and the unusable service are displayed on the reception screen 900, only the available service may be displayed and the unusable service may not be displayed.

  Further, the area 902 of the reception screen 900 displays that the print service can be used and the storage service cannot be used in accordance with the setting on the setting screen 600. In the present embodiment, the user of the portable terminal 400 causes the connection process to be executed by instructing the execution of the connection process on both the printing apparatus 200 and the portable terminal 400, and wireless communication between the printing apparatus 200 and the portable terminal 400 is performed. Establish. That is, the user may see the reception screen 900 without knowing the setting on the setting screen 600, and even such a user confirms whether the desired service can be used by checking the area 902. be able to. If the contents of the area 902 are not displayed, the connection processing based on Wi-Fi Direct is executed to establish wireless communication, and then the service is actually used at the timing when the service (a service set as unavailable) is used. You will know that the service is not available. By displaying the area 902, the user can confirm whether or not the desired service can be used at a timing prior to executing the connection processing, thereby preventing execution of useless connection processing. it can.

  Of course, the display content of the area 902 changes according to the setting content of the setting screen 600. If the setting screen 600 is set to provide both the print service and the storage service to the external apparatus, the area 902 displays that both the print service and the storage service can be used.

  In addition, when all of a plurality of services provided in the printing apparatus 200 are set as services that are not provided to an external apparatus by the setting screen 600, even if connection processing based on Wi-Fi Direct is executed and wireless communication is established, An external device (for example, the portable terminal 400) cannot use any service. That is, since it is useless even if the connection process is executed, when all of the plurality of services provided in the printing apparatus 200 are set as services that are not provided to the external apparatus, the operation panel 211 displays the reception screen of FIG. 9B. 910 is displayed. In the reception screen 910, the printing apparatus 200 is controlled so as not to execute the connection process by displaying the icon 911 in an invalid state (for example, displayed in gray out) in which an operation from the user is not received. Thereby, it is possible to prevent the user from instructing execution of useless connection processing.

  Returning to the flowchart of FIG. When the operation panel 211 displays a reception screen in step S801, in step S802, the CPU 202 determines whether or not to execute a connection process. When an instruction to execute the connection process is received from the user (the user selects the icon 901), in step S802, the CPU 202 determines that the connection process is to be executed, and the process proceeds to step S803. On the other hand, if the connection process execution instruction has not been received from the user, the process waits until it is received.

  Next, in step S803, the wireless LAN I / F 212 executes a connection process based on Wi-Fi Direct. Details of this connection processing will be described later with reference to FIG. Through the connection process in step S803, wireless communication is established between the printing apparatus 200 and the external apparatus (for example, the portable terminal 400). In the following description, it is assumed that wireless communication has been established with the mobile terminal 400.

  In step S <b> 804, the CPU 202 determines whether an inquiry about available services has been received from the portable terminal 400. This inquiry is transmitted by the portable terminal 400 in step S1103 of FIG. When the CPU 202 determines that an inquiry about available services has been received from the portable terminal 400, the process proceeds to step S805. On the other hand, if the CPU 202 determines that an inquiry about available services has not been received from the portable terminal 400, the CPU 202 waits until it is received.

  In step S805, the wireless LAN I / F 212 responds with a usable service in response to the received inquiry (corresponding to step S503 in FIG. 5). This response is made based on the setting on the setting screen 600 of FIG. In the present embodiment, the service set to be provided to the external device on the setting screen 600 is returned as a usable service in step S805, and the service set to be not provided to the external device on the setting screen 600 is not responded to in step S805. .

  Next, the connection process described in step S803 in FIG. 8 will be described using the flowchart in FIG. Each step shown in the flowchart of FIG. 10 is processed by the CPU 202 developing and executing a program stored in a memory such as the ROM 204 in the RAM 203.

  First, in step S1001, the wireless LAN I / F 212 executes device search. Device search is processing for specifying a connection destination. In the present embodiment, the external device also performs device search in response to a user operation. In the device search in step S1001, an external device that is executing this device search is specified as a connection destination. In the following description, it is assumed that the portable terminal 400 is specified as the connection destination.

  In step S1002, the wireless LAN I / F 212 determines which of the mobile terminal 400 and the printing apparatus 200 is an access point (GroupOwner) and which is a client (Client). This process is called role determination.

  In step S1003, the wireless LAN I / F 212 shares parameters with the printing apparatus 200 using WPS. Through the processing in step S1003, parameters are shared between the portable terminal 400 and the printing apparatus 200.

  Next, in step S1004, the wireless LAN I / F 212 executes secure connection using the parameters shared in step S1003. Until the processing of step S1004 is completed, the communication is executed as data link layer communication of the OSI reference model.

  Next, in step S <b> 1005, the wireless LAN I / F 212 executes IP connection with the printing apparatus 200. In step S1005, addressing for performing IP communication between the mobile terminal 400 and the printing apparatus 200 is performed. At this time, the device that is the Group Owner assigns an IP address to the device that is the Client. By executing these processes described with reference to FIG. 10, wireless communication is established between the mobile terminal 400 and the printing apparatus 200. In step S1005 and subsequent steps (steps S804 and S805 in FIG. 8), higher-layer communication than the network layer of the OSI reference model is possible.

  Next, processing executed by the mobile terminal 400 when Wi-Fi Direct connection is performed will be described with reference to the flowchart of FIG. Each step shown in the flowchart of FIG. 11 is processed by the CPU 401 expanding and executing a program stored in a memory such as the ROM 403 in the RAM 402.

  When receiving an instruction to execute a connection process from the user, in step S1101, the wireless LAN I / F 406 executes a connection process based on Wi-Fi Direct. Since this connection process is the same as the connection process executed in the printing apparatus 200 described with reference to FIG. 10, detailed description thereof is omitted. In the present embodiment, it is assumed that wireless communication is established between the portable terminal 400 and the printing apparatus 200 by the connection process in step S1101.

  When the connection process in step S1101 is completed, in step S1102, the wireless LAN I / F 406 inquires the printing apparatus 200 about available services (corresponding to step S502 in FIG. 5). In this embodiment, the inquiry executed in step S1102 is a process executed in response to the establishment of wireless communication by the connection process in step S1101, and is automatically executed without requiring a user instruction. . Note that the processing in step S1102 is not limited to this, and may be executed after confirming whether or not to execute a service inquiry to the user.

  In step S <b> 1103, the CPU 401 determines whether a response to an inquiry about available services has been received from the printing apparatus 200. If the CPU 401 determines that a response has been received, the process proceeds to step S1104. On the other hand, if the CPU 401 determines that no response has been received, the CPU 401 waits until a response is received.

  In step S1104, the operation unit 405 of the portable terminal 400 displays available services based on the received response. When a response indicating that the print service and the storage service are available services is received from the printing apparatus 200, the operation unit 405 displays a service selection screen 700 in FIG. On the other hand, when the received response is only the print service, the operation unit 405 displays the service selection screen 710 in FIG. Unlike the service selection screen 700, the service selection screen 710 does not display storage services. As described above, the operation unit 405 displays based on the response received from the printing apparatus 200 so that the user can distinguish between services that the portable terminal 400 can use and services that cannot be used.

  The user can select and use a desired service from the services displayed in step S1104. When the user instructs use of a desired service on the service selection screen 700 or the like, a service use request is transmitted to the printing apparatus 200, and the printing apparatus 200 executes the instructed service.

  As described above, according to the present embodiment, the service provided by the printing apparatus 200 includes a service provided to an external apparatus when Wi-Fi Direct is connected (a service that can be used by the external apparatus) and a service that is not provided to the external apparatus. (Services that cannot be used by external devices) can be set.

  In addition, the printing apparatus 200 displays, on a reception screen that accepts an instruction to execute a connection process based on Wi-Fi Direct, from a user so that the user can distinguish between services that can be used for services provided by the printing apparatus 200 and services that cannot be used. . As a result, the user can grasp whether or not the desired service can be used at a timing prior to the actual execution of the connection process, so that the connection process is wastefully executed in a setting where the desired service cannot be used. Can be prevented.

(Other embodiments)
In the above-described embodiment, as described in the setting screen 600 of FIG. 6, the configuration in which the user sets whether to provide a service to the external apparatus for each of the services provided in the printing apparatus 200 has been described. The present invention is not limited to this, and the printing apparatus 200 may determine whether or not to provide a service to an external device based on whether or not the printing apparatus 200 has a capability of providing a service. For example, it is determined that the print service 306 is not provided to the external device when the toner or the sheet runs out, or the storage service 307 is not provided to the external device when the free space in the storage area is less than a predetermined capacity. May be determined.

  Moreover, although the printing apparatus 200 and the portable terminal 400 demonstrated performing Wi-Fi Direct as wireless communication in embodiment mentioned above, wireless communication is not restricted to Wi-Fi Direct. The present invention can be applied to any wireless communication in which a plurality of communication devices can directly communicate, such as Wi-Fi Direct.

  The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

200 Printing device 202 CPU
211 Operation panel 212 Wireless LAN I / F
305 Service unit 306 Print service 307 Storage service 400 Portable terminal 401 CPU
405 Operation unit 406 Wireless LAN I / F

Claims (7)

A communication device that has a Wi-Fi Direct function and provides a service to an external device wirelessly connected by the Wi-Fi Direct function,
Of the plurality of services of the communication device, setting means for setting a service provided to an external device and a service not provided to the external device;
Display means for displaying a connection screen related to the Wi-Fi Direct function, and the user can use the communication device to execute a connection process for establishing a wireless connection by the Wi-Fi Direct function on the connection screen. In addition, on the connection screen, the service provided to the external device by the communication device is displayed in a state that can be identified by the user on the connection screen based on the setting result by the setting unit. A communication device.   2. The communication apparatus according to claim 1, wherein when the setting unit sets that all of the plurality of services are not provided, the instruction object is displayed in an invalid state in which an instruction from a user is not accepted. .   The communication apparatus according to claim 1, wherein the plurality of services include at least a print service.   The communication apparatus according to claim 1, wherein the plurality of services include at least a storage service.   The communication apparatus according to claim 1, wherein the communication apparatus is a printing apparatus that performs printing on a sheet. A method for controlling a communication device that has a Wi-Fi Direct function and provides a service to an external device wirelessly connected by the Wi-Fi Direct function,
A setting step of setting a service provided to an external device and a service not provided to the external device among a plurality of services of the communication device;
A display step for displaying a connection screen relating to the Wi-Fi Direct function,
The connection screen includes an instruction object for a user to instruct the communication apparatus to execute a connection process for establishing a wireless connection by the Wi-Fi Direct function. A method for controlling a communication device, characterized in that a service provided by the communication device to an external device is displayed in a state that can be identified by a user based on a result of setting by the user.   A program for causing a computer to execute the control method of the communication device according to claim 6.

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