JP2013009416A - Wireless communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent different wireless setting information from being set to a multifunction machine and a telephone call device.SOLUTION: When an instruction is input in order to change wireless setting information WS1 which is currently set to the multifunction machine 10 to wireless setting information WS2, a multifunction machine 10 transmits the WS2 to a telephone call device 70 by utilizing wireless connection according to the WS1. The telephone call device 70 transmits a connection completion notice 122 to the multifunction machine 10 when changing the WS1 which is currently set to the telephone call device 70 to the WS2 (S96). The multifunction machine 10 newly sets the WS2 when receiving the connection completion notice 122, or maintains the WS1 when not receiving the connection completion notice 122.

Description

  The present specification discloses a wireless communication device that performs wireless communication with another wireless communication device.

  For example, Patent Document 1 discloses a wireless telephone that performs wireless communication between a parent device and a child device. The master unit and the slave unit directly perform wireless communication without using an access point. That is, Patent Document 1 discloses an ad hoc wireless communication technique. A technique in which a pair of wireless communication devices perform wireless communication indirectly via an access point is also known. That is, infrastructure wireless communication technology is also known.

JP-A-6-69870

  In order for the pair of wireless communication devices to appropriately communicate with each other in both the ad hoc wireless communication technology and the infrastructure wireless communication technology, the same wireless setting information (for example, authentication method, encryption, etc.) Method). That is, in a state where different wireless setting information is set in the pair of wireless communication devices, the pair of wireless communication devices cannot appropriately perform wireless communication. The present specification provides a technique for suppressing the occurrence of an event in which a pair of wireless communication devices cannot appropriately perform wireless communication.

  The present specification discloses a first wireless communication apparatus that is wirelessly connected to a second wireless communication apparatus. The first wireless communication apparatus includes a communication unit, a first transmission unit, and a setting unit. The communication unit communicates the specific data with the second wireless communication apparatus using a wireless connection according to the wireless setting information for communicating specific data. The first transmission unit changes the first wireless setting information currently set in the first wireless communication device to the second wireless setting information as wireless setting information for communicating the specific data. When an instruction to do so is input, the second wireless setting information is transmitted to the second wireless communication device using the first wireless connection according to the first wireless setting information. When the second wireless communication device changes the first wireless setting information currently set in the second wireless communication device to the second wireless setting information, the setting unit transmits the second wireless communication device to the first wireless communication device. When a predetermined signal to be transmitted is received, second wireless setting information is newly set as wireless setting information for communicating the specific data. The setting unit maintains the first wireless setting information as wireless setting information for communicating the specific data when the predetermined signal is not received.

  Temporarily, after the first wireless communication device transmits the second wireless setting information to the second wireless communication device, the second wireless setting information is obtained from the first wireless setting information regardless of whether the predetermined signal is received. When the configuration for changing the setting of the wireless setting information (hereinafter referred to as “specific configuration”) is adopted, the following problems may occur. In a situation where the first wireless communication apparatus does not receive the predetermined signal, it is not guaranteed that the second wireless communication apparatus appropriately changes the setting from the first wireless setting information to the second wireless setting information. Therefore, in the specific configuration described above, the first wireless communication device changes the setting to the second wireless setting information, but the second wireless communication device does not change the setting and does not change the first wireless setting information. Can occur. In this case, since different wireless setting information is set in the first and second wireless communication devices, the first and second wireless communication devices cannot wirelessly communicate the specific data. On the other hand, the first wireless communication device disclosed in the present specification, when the predetermined signal is received, that is, the second wireless communication device changes the setting to the second wireless setting information. If it is confirmed, the setting is changed to the second wireless setting information. On the other hand, if the first wireless communication device does not receive the predetermined signal, that is, if it is not confirmed that the second wireless communication device changes the setting to the second wireless setting information, the first wireless communication device Maintain wireless configuration information. Thereby, it can suppress that different radio | wireless setting information is set to the 1st and 2nd radio | wireless communication apparatus. Therefore, compared with the specific configuration described above, it is possible to suppress the occurrence of an event in which the first and second wireless communication apparatuses cannot wirelessly communicate the specific data.

  When the second wireless setting information is wireless setting information for wireless communication via the access point, the first wireless communication apparatus performs the second communication with the access point instead of the first wireless connection. A trial unit that tries to establish a second wireless connection according to the wireless setting information may be further included. The setting unit is for communicating the specific data when the success information indicating that the attempt is successful is received from the access point and when the predetermined signal is received. As the wireless setting information, second wireless setting information may be newly set. Even if the same second wireless setting information is set in the first and second wireless communication devices, the second wireless connection is not properly established between the first wireless communication device and the access point. The first and second wireless communication apparatuses cannot wirelessly communicate the specific data via the access point. In order to suppress the occurrence of such an event, in the above technique, the first wireless communication device receives the success information from the access point, that is, the first wireless communication device and the access point. When it is confirmed that the second wireless connection is established between the two, the setting is changed to the second wireless setting information. According to this configuration, it is possible to more effectively suppress the occurrence of an event in which the first and second wireless communication devices cannot wirelessly communicate the specific data.

  Even if the above instruction is input, the first transmission unit may not transmit the second wireless setting information to the second wireless communication device when the success information is not received from the access point. According to this configuration, when the success information is not received from the access point, the first wireless communication device does not transmit the second wireless setting information to the second wireless communication device. The first wireless setting information is maintained without changing the setting of the second wireless setting information. As a result, since the second wireless communication apparatus does not transmit the predetermined signal to the first wireless communication apparatus, the first wireless communication apparatus also does not change the setting in the second wireless setting information, The first wireless setting information is maintained. The first and second wireless communication apparatuses can wirelessly communicate the specific data using the first wireless connection according to the first wireless setting information.

  When the first transmission unit receives success information from the access point, the first transmission unit reconstructs the first wireless connection instead of the second wireless connection established by the above-described trial, and reconstructs the first wireless connection. The second wireless setting information may be transmitted to the second wireless communication device by using one wireless connection.

  The setting unit may receive the predetermined signal from the second wireless communication device using the reconstructed first wireless connection.

  When the second wireless communication apparatus tries to establish a wireless connection according to the second wireless setting information with the access point, the second wireless communication apparatus When receiving success information from the access point, it may be a signal transmitted to the first wireless communication apparatus. According to this configuration, the first wireless communication device can change the setting when it is confirmed that a wireless connection is established between the second wireless communication device and the access point.

  The predetermined signal may be a signal transmitted to the first wireless communication device when the second wireless communication device receives the second wireless setting information.

  The setting unit may receive the predetermined signal from the second wireless communication device via the access point using the second wireless connection established by the trial. That the first wireless communication device receives the predetermined signal in this configuration means that the first and second wireless communication devices can perform wireless communication according to the second wireless setting information. . That is, according to this configuration, when it is confirmed that the first and second wireless communication devices can perform wireless communication according to the second wireless setting information, the first wireless communication device changes the setting. Can be done.

  When the first wireless communication device receives success information from the access point, the first wireless communication device uses the second wireless connection established by the above-described trial to send a specific signal to the second signal via the access point. You may further provide the 2nd transmission part which transmits to a radio | wireless communication apparatus. The predetermined signal may be a signal that is transmitted to the first wireless communication apparatus via the access point when the second wireless communication apparatus receives the specific signal.

  When the second wireless communication apparatus tries to establish a wireless connection according to the second wireless setting information with the access point, the second wireless communication apparatus When receiving the success information from the access point, it may be a signal transmitted to the first wireless communication apparatus via the access point.

  The second wireless communication device may be an accessory of the first wireless communication device. Further, the first wireless setting information may be wireless setting information for allowing the first wireless communication device and the second wireless communication device to directly perform wireless communication without using an access point.

  In the first wireless communication device, the communication unit receives the specific data from the second wireless communication device by using a wireless connection according to the wireless setting information for communicating the specific data. In this case, a print control unit that causes the print execution unit to print using the specific data may be further provided.

  Note that the single unit of the first wireless communication apparatus is also novel and useful. The single unit of the second wireless communication device is also new and useful. Also, a control method, a computer program, and a computer-readable storage medium for storing the computer program for realizing the first wireless communication device are novel and useful. A control method, a computer program, and a computer-readable storage medium storing the computer program for realizing the second wireless communication apparatus are also novel and useful. A wireless communication system including the first wireless communication device and the second wireless communication device is also novel and useful.

1 shows a configuration of a wireless communication system according to an embodiment. FIG. 3 shows a sequence diagram of processing executed by each device of the first embodiment. FIG. 3 shows a sequence diagram continued from FIG. 2. FIG. 4 shows a sequence diagram continued from FIG. 3. The sequence diagram of the process which each device of 2nd Example performs is shown. FIG. 10 shows a sequence diagram of processing executed by each device of the third embodiment. FIG. 10 shows a sequence diagram of processing executed by each device of the third embodiment.

(First embodiment)
(System configuration)
A first embodiment will be described with reference to the drawings. As shown in FIG. 1, the wireless communication system 2 includes a plurality of PCs 4, 5, an AP (access point) 6, a multi-function device 10, and a call device 70. The PC 4 and the PC 5 can communicate with each other wirelessly via the AP 6. The multi-function device 10 and the call device 70 can communicate with each other wirelessly via the AP 6 or without the AP 6. That is, the multi-function device 10 and the telephone device 70 can execute infrastructure wireless communication or ad hoc wireless communication. In the present embodiment, wireless communication is performed based on the IEEE standard of IEEE (The Institute of Electrical and Electronics Engineers, Inc.) and standards conforming thereto (802.11a, 11b, etc.). . Accordingly, wireless setting information WS1 and WS2 described later are wireless setting information that conforms to the above-described standard.

(Configuration of multi-function device 10)
The configuration of the multi-function device 10 will be described in detail. The multi-function device 10 can execute multi-functions such as a print function, a scanner function, and a copy function. The multi-function device 10 includes an operation unit 12, a display unit 14, a print execution unit 16, a scan execution unit 18, a wireless interface 20, a wired interface 22, a storage unit 30, and a control unit 50. . The operation unit 12 includes a plurality of keys. The user can input various instructions to the multi-function device 10 by operating the operation unit 12. The display unit 14 is a display for displaying various information. The print execution unit 16 is a printing mechanism such as an inkjet method or a laser method. The scan execution unit 18 is a scan mechanism such as a CCD or CIS. The wireless interface 20 is an interface for executing wireless communication. The wired interface 22 is an interface for executing wired communication.

  The storage unit 30 includes a ROM 32, an NVRAM (nonvolatile memory) 36, and a VRAM (volatile memory) 40. The ROM 32 stores a program 34 for the control unit 50 to execute various processes. The NVRAM 36 includes a main setting area 38. The setting area 38 stores wireless setting information for the multi-function device 10 to wirelessly communicate FAX data with the calling device 70. The wireless setting information includes an authentication method, an encryption method, a password, and the like. The state in which the specific wireless setting information is stored in the setting area 38 is the wireless setting information for the multi-function device 10 to wirelessly communicate FAX data, and the specific wireless setting information is stored in the multi-function device 10. It is in a set state. The VRAM 40 includes a temporary setting area 42. The temporary setting area 42 temporarily stores the other wireless setting information in the process of changing the wireless setting information stored in the main setting area 38 to another wireless setting information. To store.

  The control unit 50 executes various processes according to the program 34 stored in the ROM 32. When the control unit 50 executes processing according to the program 34, the functions of the communication unit 52, the first transmission unit 54, the setting unit 56, the trial unit 58, the second transmission unit 60, and the print control unit 62 are performed. Realized. The communication unit 52 transmits / receives FAX data to / from the call device 70. The first transmission unit 54 transmits wireless setting information based on various information (authentication method, encryption method, password, etc.) input by the user's setting change operation to the call device 70. The setting unit 56 changes the wireless setting information currently set in the multi-function device 10 to new wireless setting information, or maintains the wireless setting information currently set in the multi-function device 10. The trial unit 58 tries the wireless communication using the wireless setting information based on the user's setting change operation. The second transmission unit 60 transmits a connection completion notification (a connection completion notification 310 in FIG. 6 and a connection completion notification 320 in FIG. 7), which will be described later, to the calling device 70 via the AP 6. The print control unit 62 controls the operation of the print execution unit 16.

(Configuration of calling device 70)
The call device 70 is an accessory of the multi-function device 10. That is, the call device 70 is not shipped alone but shipped with the multi-function device 10. The call device 70 includes a microphone 72, a speaker 74, a PSTN interface 76, a wireless interface 78, a control unit 80, and a storage unit 90. The PSTN interface 76 is connected to a PSTN (Public Switched Telephone Network) 8 which is a general public line network. The wireless interface 78 is an interface for executing wireless communication. The control unit 80 executes various processes according to a program (not shown) stored in the storage unit 90. The storage unit 90 includes an NVRAM (nonvolatile memory) 91 and a VRAM (volatile memory) 93. The NVRAM 91 includes a main setting area 92. The setting area 92 stores wireless setting information for the telephone device 70 to wirelessly communicate FAX data with the multi-function device 10. When the specific wireless setting information is stored in the setting area 92, the specific wireless setting information is set in the calling device 70 as wireless setting information for the telephone device 70 to wirelessly communicate FAX data. It is in a state. The VRAM 93 includes a temporary setting area 94. The temporary setting area 94 temporarily stores the other wireless setting information in the process of changing the wireless setting information stored in the main setting area 92 to another wireless setting information. To store.

  The telephone function is realized by the telephone device 70 executing the process. For example, the user of the multi-function device 10 and the calling device 70 can use the calling device 70 to make a call to another telephone connected to the PSTN 8. In this case, the calling device 70 transmits voice data corresponding to the voice input to the microphone 72 to the other telephone set via the PSTN interface 76. Further, when the voice data transmitted from the other telephone is received by the PSTN interface 76, the calling device 70 causes the speaker 74 to output a voice corresponding to the voice data.

  In addition, the multi-function device 10 and the telephone device 70 cooperate to execute the processing, thereby realizing the FAX function. For example, when image data (that is, FAX data) is received by the PSTN interface 76, the calling device 70 wirelessly transmits the image data to the multi-function device 10. When the wireless interface 20 receives image data transmitted wirelessly from the call device 70, the multi-function device 10 causes the print execution unit 16 to execute printing according to the image data. As a result, a FAX reception operation is executed. In addition, the multi-function device 10 wirelessly transmits image data (that is, FAX data) generated by the scan execution unit 18 executing the scan to the call device 70. When the image data transmitted wirelessly from the multi-function device 10 is received by the wireless interface 78, the calling device 70 transmits the image data to a destination in the PSTN 8 designated in advance by the user. As a result, a FAX transmission operation is executed.

(Processing executed by each device 10, 70)
Next, with reference to FIG. 2 to FIG. 4, the contents of processing executed by the devices 10 and 70 will be described. In the present embodiment, when the multi-function device 10 and the call device 70 can execute ad hoc wireless communication, the user can change the setting in the multi-function device 10 to change to the wireless setting of the infrastructure. An example of executing the operation will be described. In other words, the setting change operation for the user to change to a state where not only wireless communication between the multi-function device 10 and the calling device 70 but also wireless communication between the multi-function device 10 and the PCs 4 and 5 can be executed. An example of executing is described.

  At the shipping stage of the multi-function device 10 and the call device 70 (which may be referred to as “initial state”), the same setting area 38 for the multi-function device 10 and the main setting area 92 for the call device 70 are the same. Wireless setting information WS1 (hereinafter simply described as “WS1”) is stored in advance. That is, at the shipping stage, WS1 is set for each of the multi-function device 10 and the telephone device 70. WS1 is wireless setting information for allowing the multi-function device 10 and the calling device 70 to directly perform wireless communication without using the AP 6. That is, WS1 is ad hoc wireless setting information. Therefore, as shown in FIG. 2, a wireless connection (ad hoc wireless connection) according to WS1 is established between the multi-function device 10 and the telephone device 70. In a state where a wireless connection according to WS1 is established, the multi-function device 10 and the call device 70 can wirelessly communicate FAX data.

  While the wireless connection according to WS1 is established, the control unit 80 of the call device 70 receives the FAX data 100 via the PSTN interface 76 (S2). In this case, the control unit 80 transmits the FAX data 100 to the multi-function device 10 using a wireless connection according to WS1 (S4). Thereby, the communication unit 52 of the multi-function device 10 receives the FAX data 100 using the wireless connection according to WS1 (S6). In this case, the print control unit 62 of the multi-function device 10 causes the print execution unit 16 to execute printing using the FAX data 100 (S8). As a result, a print medium on which an image represented by the FAX data 100 is formed can be provided to the user. FIG. 2 shows an example in which the FAX data 100 is transmitted from the telephone device 70 to the multi-function device 10 (that is, an example of a FAX reception operation from the PSTN 8), but wireless connection in accordance with WS1 is performed. In the constructed state, FAX data (that is, FAX data generated by the scan execution unit 18) can be transmitted from the multi-function device 10 to the call device 70. That is, it is possible to execute a FAX transmission operation to the PSTN 8.

  The user performs a setting change operation on the operation unit 12 of the multi-function device 10, whereby WS1 stored in the setting area 38 is changed to different wireless setting information WS2 (hereinafter simply referred to as “WS2”). An instruction to change to is input to the multi-function device 10 (S10). The setting change operation includes an operation for inputting various information (authentication method, encryption method, password, etc.) included in WS2. In the present embodiment, WS2 is wireless setting information for the wireless communication between the multi-function device 10 and the calling device 70 via the AP 6 indirectly. That is, WS2 is infrastructure wireless setting information. When the above instruction is input, the setting unit 56 stores WS2 in the temporary setting area 42 in a state where WS1 is maintained in the main setting area 38 (S12). In S12, the setting unit 56 further determines that a wireless connection should be established by using WS2 stored in the temporary setting area 42 instead of WS1 stored in the main setting area 38. To do. Thereby, the wireless connection according to WS1 is disconnected between the multi-function device 10 and the calling device 70 (S14). Subsequently, the trial unit 58 wirelessly transmits a connection request 102 to the AP 6 in order to establish a wireless connection according to WS2 with the AP 6 (S16). The connection request 102 includes information based on WS2 (authentication method, encryption method, authentication data necessary for authentication, etc.).

  Upon receiving the connection request 102, the AP 6 performs authentication based on the connection request 102 (S18). This authentication includes, for example, authentication relating to whether or not the AP 6 supports the authentication method and encryption method included in the WS 2, authentication relating to whether or not the password included in the WS 2 is registered in the AP 6, and the like. Therefore, in order for the authentication of S18 to succeed, the user needs to input the authentication method and the encryption method supported by the AP 6 when executing the operation of S10. In order for the authentication of S18 to succeed, the user registers a specific password in the AP 6 in advance before executing the operation of S10, and when executing the operation of S10, the specific password is registered. You need to enter the same password.

  When the authentication in S18 fails, the AP 6 wirelessly transmits an NG notification 104 indicating that the authentication has failed to the multi-function device 10. As an example in which the authentication in S18 fails, if the user does not input the authentication method and the encryption method supported by AP6 when executing the operation in S10, the above-mentioned identification registered in advance in AP6 For example, when a password different from the password is entered. The setting unit 56 receives the NG notification 104 (S20). In this case, the control unit 50 of the multi-function device 10 causes the display unit 14 to display a screen indicating that the setting cannot be changed (S22). Next, the setting unit 56 deletes WS2 stored in the temporary setting area 42 and determines that the wireless connection according to WS1 should be reconstructed (S24). In this case, the multi-function device 10 maintains WS1 without changing the setting from WS1 to WS2, and the telephone device 70 also maintains WS1. Thereby, the wireless connection according to WS1 is reconstructed between the multi-function device 10 and the telephone device 70 (S26).

  When the multi-function device 10 transmits the connection request 102 in S16, for example, when the power of the AP 6 is turned off, the AP 6 cannot receive the connection request 102. For example, even when the distance between the AP 6 and the multi-function device 10 is large, the AP 6 cannot receive the connection request 102. That is, in these cases, the AP 6 cannot execute the authentication of S18 and does not transmit information indicating the authentication result (NG notification 104 or OK notification 110 in FIG. 3 described later) to the multi-function device 10. Even if the setting is changed from WS1 to WS2 in such a situation, the multi-function device 10 and the telephone device 70 cannot communicate wirelessly via the AP 6. Therefore, although not shown, the setting unit 56 performs the processing of S22 to S26 when the NG notification 104 or the OK notification 110 is not received even after a predetermined time has elapsed since the connection request 102 was transmitted in S16. Execute.

  When the authentication of S18 is successful, as shown in FIG. 3, the AP 6 wirelessly transmits an OK notification 110 indicating that the authentication is successful to the multi-function device 10. Thereby, the setting unit 56 receives the OK notification 110 (S32). In this case, a wireless connection according to WS2 is established between the multi-function device 10 and the AP 6 (S34). Next, the setting unit 56 determines that the wireless connection according to WS1 should be reconstructed instead of the wireless connection according to WS2 (S40). Thereby, the wireless connection according to WS2 established between the multi-function device 10 and the AP 6 is disconnected (S42). Subsequently, the wireless connection according to WS1 is reconstructed between the multi-function device 10 and the calling device 70 (S44). Next, the first transmission unit 54 transmits WS2 to the call device 70 using the wireless connection according to the reconstructed WS1 (S46). Thereby, the control part 80 of the telephone device 70 receives WS2 (S48).

  When receiving the WS2, the control unit 80 of the calling device 70 stores WS2 in the temporary setting area 94 in a state where WS1 is maintained in the main setting area 92 (S50). In S50, the control unit 80 further determines that a wireless connection should be established by using WS2 stored in the temporary setting area 94 instead of WS1 stored in the main setting area 92. To do. Thereby, the wireless connection according to WS1 is disconnected (S52). Subsequently, the control unit 80 of the calling device 70 wirelessly transmits a connection request 112 including information based on WS2 to the AP 6 in order to establish a wireless connection according to WS2 with the AP 6 (S54).

  Upon receiving the connection request 112, the AP 6 performs authentication based on the connection request 112 (S56). This authentication is the same as the authentication in S18 of FIG. Therefore, when the authentication of S18 is successful, the authentication of S56 is normally successful. However, for example, when information for prohibiting establishment of a wireless connection between the AP 6 and the calling device 70 is registered in advance in the AP 6 (for example, as a MAC address for prohibiting establishment of a wireless connection, If the MAC address of the calling device 70 is registered in advance in the AP 6), the authentication in S56 may fail. In this case, the AP 6 wirelessly transmits an NG notification 114 indicating that the authentication has failed to the calling device 70. Thereby, the control part 80 of the telephone device 70 receives the NG notification 114 (S58). In this case, the control unit 80 deletes WS2 stored in the temporary setting area 94 and determines that the wireless connection according to WS1 should be reconstructed (S60). Thereby, the wireless connection according to WS1 is reconstructed between the multi-function device 10 and the telephone device 70 (S62). Furthermore, the control unit 80 transmits an NG notification 116 indicating that the authentication has failed to the multi-function device 10 by using the wireless connection according to the reconfigured WS1 (S64). Thereby, the setting unit 56 receives the NG notification 116 (S66). In this case, the control unit 50 of the multi-function device 10 causes the display unit 14 to display a screen indicating that the setting cannot be changed (S68). Further, the setting unit 56 deletes WS2 stored in the temporary setting area 42 (S70). In this case, the multi-function device 10 maintains WS1 without changing the setting from WS1 to WS2, and the telephone device 70 also maintains WS1.

  When the multi-function device 10 transmits the connection request 102 in S16 of FIG. 2, the AP 6 is powered on, but when the calling device 70 transmits the connection request 112 in S54 of FIG. When the power of the AP 6 is turned off, the AP 6 cannot receive the connection request 112. For example, even when the distance between the AP 6 and the call device 70 is large, the AP 6 cannot receive the connection request 112. Although not shown in the drawings, in consideration of these cases, the control unit 80 of the calling device 70 does not receive an NG notification 114 or an OK notification described later even if a predetermined time has elapsed since the connection request 112 was transmitted in S54. When 120 (see FIG. 4) is not received, the processing of S60 to S64 is executed.

  When the authentication of S56 is successful, as shown in FIG. 4, the AP 6 wirelessly transmits an OK notification 120 indicating that the authentication is successful to the call device 70. Thereby, the control part 80 of the telephone device 70 receives the OK notification 120 (S82). In this case, a wireless connection according to WS2 is established between the calling device 70 and the AP 6 (S84). Next, the control unit 80 determines that the wireless connection according to WS1 should be reconstructed instead of the wireless connection according to WS2 (S86). Thereby, the wireless connection according to WS2 established between the calling device 70 and the AP 6 is disconnected (S88). Further, the wireless connection according to WS1 is reconstructed between the multi-function device 10 and the calling device 70 (S90). Subsequently, the control unit 80 transmits a connection completion notification 122 indicating that the wireless connection with the AP 6 is established to the multi-function device 10 by using the wireless connection according to the reconstructed WS1 (S92). . Further, the control unit 80 deletes WS1 stored in the main setting area 92 and newly stores WS2 in the main setting area 92 (S96). As a result, WS2 is newly set in the call device 70 as wireless setting information for the call device 70 to wirelessly communicate FAX data. That is, the connection completion notification 122 transmitted in S92 is a notification transmitted when the call device 70 changes the setting from WS1 to WS2.

  The setting unit 56 of the multi-function device 10 receives the connection completion notification 122 from the call device 70 (S94). In this case, the setting unit 56 deletes WS1 stored in the main setting area 38 and newly stores WS2 in the main setting area 38 (S98). Thereby, WS2 is newly set in the multi-function device 10 as wireless setting information for the multi-function device 10 to wirelessly communicate FAX data.

  When S96 and S98 are finished, the wireless connection according to WS1 is disconnected (S99). Next, the trial unit 58 wirelessly transmits a connection request 124 including information based on WS2 to AP6 in order to establish a wireless connection according to WS2 with AP6 (S100). Since the authentication in S18 of FIG. 2 has been successful once, the AP 6 normally transmits an OK notification 126 to the multi-function device 10 wirelessly. Thereby, the setting unit 56 receives the OK notification 126 (S102). Thereby, a wireless connection according to WS2 is established between the multi-function device 10 and the AP 6 (S104). In this case, the control unit 50 of the multi-function device 10 causes the display unit 14 to display a screen indicating that a wireless connection has been established with the AP 6 (S106).

  Further, the control unit 80 of the call device 70 wirelessly transmits a connection request 128 including information based on WS2 to the AP 6 in order to establish a wireless connection according to WS2 with the AP 6 (S108). Since the authentication in S56 of FIG. 3 has been successful once, the AP 6 normally transmits an OK notification 130 to the call device 70 wirelessly. Thereby, the control unit 80 receives the OK notification 130 (S110). Thereby, the wireless connection according to WS2 is established between the calling device 70 and the AP 6 (S112).

  As described above, a wireless connection according to WS2 is established between the multi-function device 10 and the AP 6 (S104), and a wireless connection according to WS2 is established between the calling device 70 and the AP 6 (see FIG. S112). In this state, the multi-function device 10 and the telephone device 70 can wirelessly communicate FAX data via the AP 6. For example, the control unit 80 of the call device 70 receives the FAX data 140 via the PSTN interface 76 (S114). In this case, the control unit 80 transmits the FAX data 140 to the multi-function device 10 via the AP 6 using the wireless connection according to WS2 (S116). Thereby, the communication part 52 receives the FAX data 140 using the wireless connection according to WS2 (S118). In this case, the print control unit 62 causes the print execution unit 16 to perform printing using the FAX data 140 (S120). Note that FIG. 4 shows an example of a FAX reception operation from the PSTN 8, but a FAX transmission operation to the PSTN 8 can be executed in a state where a wireless connection according to WS2 is established. .

  The wireless communication system 2 of the first embodiment has been described in detail. For example, after the multi-function device 10 transmits WS2 to the call device 70 (after S46 in FIG. 3), the multi-function device 10 transmits the FAX data regardless of whether or not the connection completion notification 122 in FIG. 4 is received. A configuration (hereinafter referred to as “comparison configuration example”) in which the wireless setting information for wireless communication (wireless setting information in the setting area 38) is changed from WS1 to WS2 is conceivable. In the configuration of the above comparative example, the multi-function device 10 changes the setting from WS1 to WS2, but the call device 70 maintains the WS1 without changing the setting (for example, the NG notification 114 in FIG. 3 3 or when the NG notification 114 of FIG. 3 and the OK notification 120 of FIG. 4 are not received). In this case, since different wireless setting information is set in the multi-function device 10 and the call device 70, the multi-function device 10 and the call device 70 cannot wirelessly communicate FAX data. That is, the FAX reception operation and FAX transmission operation are not realized. In order to suppress the occurrence of such a problem, in this embodiment, the telephone device 70 uses wireless setting information (wireless setting information in the setting area 92) for wirelessly communicating FAX data as WS1. When changing from WS2 to WS2, a connection completion notification 122 is transmitted to the multi-function device 10 (S92 in FIG. 4). The multi-function device 10 changes the setting from WS1 to WS2 when the connection completion notification 122 is received from the call device 70 (S98 in FIG. 4). On the other hand, when the connection completion notification 122 is not received (when the NG notification 114 of FIG. 3 is received or when the NG notification 114 and the connection completion notification 122 are not received), the multi-function device 10 receives the WS1 to WS2. WS1 is maintained without changing the setting. Thereby, it can suppress that different radio | wireless setting information is set to the multi-function device 10 and the telephone device 70. FIG. Therefore, it is possible to suppress the occurrence of an event in which the multi-function device 10 and the calling device 70 cannot wirelessly communicate FAX data as compared with the configuration of the comparative example.

  When the setting of the multi-function device 10 is changed from WS1 to WS2, the call device 70 is also changed from WS1 to WS2 (S96 and S98 in FIG. 4). That is, the user can change the setting of the calling device 70 without performing a setting change operation on the calling device 70. Even if the operability of the calling device 70 is inferior due to a case where the display unit (not shown) of the calling device 70 is smaller than the display unit 14 of the multi-function device 10, the user can set more. The setting of the telephone device 70 can be changed using a user interface that is easy to do (that is, the user interface of the multi-function device 10).

  The multi-function device 10 tries to establish a wireless connection according to WS2 with the AP 6 before changing the setting from WS1 to WS2 (S16 in FIG. 2). The multi-function device 10 changes the setting from WS1 to WS2 when the OK notification 110 of FIG. 3 is received from the AP 6 and when the connection completion notification 122 is received. When it is confirmed that a wireless connection according to WS2 is established between the multi-function device 10 and the AP 6, the setting change is performed from WS1 to WS2, so that the multi-function device 10 and the call device 70 are faxed. It is possible to effectively suppress the occurrence of an event in which data cannot be wirelessly communicated.

  The multi-function device 10 does not receive the OK notification 110 of FIG. 3 from the AP 6 (when the NG notification 104 of FIG. 2 is received, or receives the NG notification 104 of FIG. 2 and the OK notification 110 of FIG. 3). If not, the process of S46 of FIG. 3 for transmitting WS2 to the call device 70 is not executed. Accordingly, since the call device 70 does not receive WS2, the call device 70 maintains WS1 without changing the setting from WS1 to WS2. In this case, since the multi-function device 10 also maintains WS1, the multi-function device 10 and the call device 70 can wirelessly communicate FAX data using a wireless connection according to WS1.

  In the present embodiment, the telephone device 70 tries to establish a wireless connection according to WS2 with the AP 6 before changing the setting from WS1 to WS2 (S54 in FIG. 3). When the call device 70 receives the OK notification 120 of FIG. 4 from the AP 6, the call device 70 transmits the connection completion notification 122 of FIG. 4 to the multi-function device 10. According to this configuration, the multi-function device 10 can change the setting from WS1 to WS2 when it is confirmed that a wireless connection according to WS2 is established between the calling device 70 and the AP 6.

  As is clear from the above description, the multi-function device 10 and the telephone device 70 are examples of “first wireless communication device” and “second wireless communication device”, respectively. WS1 and WS2 are examples of “first wireless setting information” and “second wireless setting information”, respectively. The FAX data 100 and 140 is an example of “specific data”. The connection completion notification 122 in FIG. 4 is an example of “predetermined signal”. 3 is an example of “success information” received by the first wireless communication device and “success information” received by the second wireless communication device, respectively. It is.

(Second embodiment)
A second embodiment will be described with reference to FIG. Here, the description will focus on differences from the first embodiment. As in the case of the first embodiment, a wireless connection according to WS1 is established between the multi-function device 10 and the telephone device 70. The user gives an instruction to change WS1 stored in the main setting area 38 of the multi-function device 10 to WS2 by applying a setting change operation to the operation unit 12 of the multi-function device 10. (S210). When the above instruction is input, the setting unit 56 stores WS2 in the temporary setting area 42, and determines that a wireless connection should be established using WS2 instead of WS1 (S212). Thereby, the wireless connection according to WS1 is disconnected between the multi-function device 10 and the calling device 70 (S214).

  Subsequently, the trial unit 58 wirelessly transmits a connection request 200 including information based on WS2 to the AP 6 (S216). In this case, the AP 6 performs the same authentication as in the first embodiment, and when the authentication is successful, transmits an OK notification 202 to the multi-function device 10 wirelessly. Although not shown, the AP 6 wirelessly transmits an NG notification to the multi-function device 10 as in the first embodiment when the authentication fails. Processing when the multi-function device 10 receives an NG notification (see S22 to S26 in FIG. 2) is the same as that in the first embodiment. Further, the processing when the multi-function device 10 receives neither the NG notification nor the OK notification 202 (see S22 to S26 in FIG. 2) is the same as that in the first embodiment.

  When the setting unit 56 receives the OK notification 202 (S232), a wireless connection according to WS2 is established between the multi-function device 10 and the AP 6 (S234). Next, the setting unit 56 determines that the wireless connection according to WS1 should be reconstructed instead of the wireless connection according to WS2 (S240). Thereby, the wireless connection according to WS2 established between the multi-function device 10 and the AP 6 is disconnected (S242). Further, the wireless connection according to WS1 is reconstructed between the multi-function device 10 and the calling device 70 (S244). Subsequently, the first transmission unit 54 transmits WS2 to the call device 70 by using the wireless connection according to the reconstructed WS1 (S246). In the second embodiment, the processes up to S246 are substantially the same as those in the first embodiment. In the following, differences from the first embodiment will be described.

  For example, when WS2 is transmitted from the multi-function device 10 to the calling device 70 (when S246 is executed), if the power of the calling device 70 is turned off, the calling device 70 receives WS2. I can't. In consideration of such a case, the setting unit 56 monitors whether a response is received from the calling device 70 until a predetermined time elapses after WS2 is transmitted in S246 (S250). If no response is received after the predetermined time has elapsed, the control unit 50 causes the display unit 14 to display a screen indicating that the setting cannot be changed (S252). Further, the setting unit 56 deletes WS2 stored in the temporary setting area 42 (S254). In this case, the multi-function device 10 maintains WS1 without changing the setting from WS1 to WS2, and the telephone device 70 also maintains WS1.

  When WS2 is received, the control unit 80 of the calling device 70 transmits a reception completion notification 212 indicating that WS2 has been received to the multi-function device 10 using a wireless connection according to WS1 (S292). ). In this case, the control unit 80 deletes WS1 stored in the main setting area 92 and newly stores WS2 in the main setting area 92 (S296). As a result, WS2 is newly set in the call device 70 as wireless setting information for the call device 70 to wirelessly communicate FAX data. That is, the reception completion notification 212 transmitted in S292 is a notification transmitted when the call device 70 changes the setting from WS1 to WS2.

  The setting unit 56 of the multi-function device 10 receives the reception completion notification 212 from the call device 70 (S294). In this case, the setting unit 56 deletes WS1 stored in the main setting area 38 and newly stores WS2 in the main setting area 38 (S298). Thereby, WS2 is newly set in the multi-function device 10 as wireless setting information for the multi-function device 10 to wirelessly communicate FAX data. Although not shown, after S296, the control unit 80 of the call device 70 executes the processing of S108 and S110 of FIG. 4 as in the first embodiment. Thereby, a wireless connection according to WS2 is established between the calling device 70 and the AP 6. Further, after S298, the trial unit 58 of the multi-function device 10 executes the processes of S100, S102, and S106 of FIG. 4 as in the first embodiment. Thereby, a wireless connection according to WS2 is established between the multi-function device 10 and the AP 6. As a result, the multi-function device 10 and the telephone device 70 are in a state in which FAX data can be wirelessly communicated via the AP 6. In the second embodiment, the case where the authentication is successful when the call device 70 executes a connection request to the AP 6 is described as an example.

  The wireless communication system 2 according to the second embodiment has been described in detail. In the present embodiment, the call device 70 generates a reception completion notification 212 when changing wireless setting information (wireless setting information in the setting area 92) for wirelessly transmitting FAX data from WS1 to WS2. It transmits to the functional device 10 (S292). When the reception completion notification 212 is received from the call device 70, the multi-function device 10 changes the setting from WS1 to WS2 (S298). On the other hand, when the reception completion notification 212 is not received, the multi-function device 10 maintains WS1 without changing the setting from WS1 to WS2 (S254). Thereby, it can suppress that different radio | wireless setting information is set to the multi-function device 10 and the telephone device 70. FIG. Therefore, after the multi-function device 10 transmits WS2 to the call device 70 (after S246 in FIG. 5), the multi-function device 10 transmits the FAX data regardless of whether or not the reception completion notification 212 in FIG. 5 is received. Compared with a configuration in which wireless setting information for wireless communication (wireless setting information in the setting area 38) is changed from WS1 to WS2, the multi-function device 10 and the calling device 70 can wirelessly communicate FAX data. It is possible to suppress the occurrence of an event that cannot be performed. In the present embodiment, the reception completion notification 212 is an example of a “predetermined signal”.

(Third embodiment)
A third embodiment will be described with reference to FIGS. Here, the description will focus on differences from the first and second embodiments. As in the case of the first embodiment, a wireless connection according to WS1 is established between the multi-function device 10 and the telephone device 70. The user gives an instruction to change WS1 stored in the main setting area 38 of the multi-function device 10 to WS2 by applying a setting change operation to the operation unit 12 of the multi-function device 10. (S310). In the third embodiment, the processes up to S310 are substantially the same as those in the first and second embodiments. Hereinafter, differences from the first embodiment and the second embodiment will be described. When the setting change operation is executed by the user (S310), the first transmission unit 54 transmits WS2 to the call device 70 using the wireless connection according to WS1 (S312). Although not shown, the multi-function device 10 changes the setting from WS1 to WS2 when a response to the transmission of WS2 is not received, similarly to the processing of S250 to S254 in FIG. 5 of the second embodiment. WS1 is maintained without performing.

  The control unit 80 of the call device 70 receives WS2 (S314). When the WS2 is received, the control unit 80 transmits a reception completion notification 302 indicating that the WS2 has been received to the multi-function device 10 by using a wireless connection according to the WS1 (S316). In this case, the control unit 80 stores WS2 in the temporary setting area 94, and determines that a wireless connection should be established using WS2 instead of WS1 (S322). The setting unit 56 of the multi-function device 10 receives the reception completion notification 302 (S318). In this case, the setting unit 56 stores WS2 in the temporary setting area 42 and determines that a wireless connection should be established using WS2 instead of WS1 (S320). Thereby, the wireless connection according to WS1 is disconnected between the multi-function device 10 and the calling device 70 (S324).

  Subsequently, the trial unit 58 wirelessly transmits a connection request 304 including information based on WS2 to the AP 6 (S326). In this case, the AP 6 performs the same authentication as in the first embodiment, and when the authentication is successful, transmits an OK notification to the multi-function device 10 wirelessly. In addition, the control unit 80 of the call device 70 also wirelessly transmits a connection request 306 including information based on WS2 to the AP 6 (S328). In this case, the AP 6 performs the same authentication as in the first embodiment, and when the authentication is successful, transmits an OK notification to the call device 70 wirelessly. Note that pattern 1 in FIG. 6 shows each process executed when both the multi-function device 10 and the calling device 70 receive an OK notification. Pattern 2 in FIG. 7 shows each process executed when only the multi-function device 10 receives the OK notification, and pattern 3 shows each process executed when only the telephone device 70 receives the OK notification. Indicates processing.

(Pattern 1)
As shown in pattern 1 of FIG. 6, when both the multi-function device 10 and the call device 70 receive an OK notification, a wireless connection according to WS2 is established between the multi-function device 10 and the AP 6. (S340), a wireless connection according to WS2 is established between the calling device 70 and the AP 6 (S342). When the second transmission unit 60 of the multi-function device 10 receives an OK notification from the AP 6, the second transmission unit 60 transmits a connection completion notification 310 to the call device 70 via the AP 6 using the wireless connection according to WS 2. (S344). Thereby, the control part 80 of the telephone device 70 receives the connection completion notification 310 (S346). In this case, the control unit 80 transmits a reception completion notification 312 indicating that the connection completion notification 310 has been received to the multi-function device 10 via the AP 6 using a wireless connection according to WS2 (S348). . Further, the control unit 80 deletes WS1 stored in the main setting area 92 and newly stores WS2 in the main setting area 92 (S354). As a result, WS2 is newly set in the call device 70 as wireless setting information for the call device 70 to wirelessly communicate FAX data. That is, the reception completion notification 312 transmitted in S348 is a notification transmitted when the call device 70 changes the setting from WS1 to WS2.

  The setting unit 56 of the multi-function device 10 receives the reception completion notification 312 (S350). In this case, the setting unit 56 deletes WS1 stored in the main setting area 38 and newly stores WS2 in the main setting area 38 (S352). Thereby, WS2 is newly set in the multi-function device 10 as wireless setting information for the multi-function device 10 to wirelessly communicate FAX data. The multi-function device 10 and the calling device 70 can wirelessly communicate FAX data via the AP 6 by using the wireless connection according to WS2 constructed in S340 and S342.

(Pattern 2)
As shown in pattern 2 of FIG. 7, when only the multi-function device 10 receives an OK notification, a wireless connection according to WS2 is established between the multi-function device 10 and the AP 6 (S360). The wireless connection according to WS2 is not established between the calling device 70 and the AP 6. The control unit 80 of the calling device 70 is stored in the temporary setting area 94 when an OK notification is not received from the AP 6 (when an NG notification is received or when neither an NG notification nor an OK notification is received). WS2 is deleted, and it is determined that a wireless connection according to WS1 should be established (S362). However, at this time, the wireless connection according to WS1 is not established between the multi-function device 10 and the calling device 70. This is because the multi-function device 10 establishes a wireless connection according to WS2 with the AP 6.

  As in the case of pattern 1, the second transmission unit 60 of the multi-function device 10 transmits a connection completion notification 320 to the call device 70 via the AP 6 using the wireless connection according to WS2 (S364). ). However, as described above, since the wireless connection according to WS2 is not established between the calling device 70 and the AP 6, the calling device 70 cannot receive the connection completion notification 320, and as a result, The reception completion notification is not transmitted to the multi-function device 10. In consideration of such a case, the setting unit 56 monitors whether a response is received from the call device 70 until a predetermined time elapses after the connection completion notification 320 is transmitted in S364 (S366). In pattern 2, since the response is not received even after the predetermined time has elapsed, the control unit 50 causes the display unit 14 to display a screen indicating that the setting cannot be changed (S368). Furthermore, the setting unit 56 deletes WS2 stored in the temporary setting area 42 and determines that the wireless connection according to WS1 should be reconstructed (S370). Thereby, in the case of the pattern 2, the multi-function device 10 maintains WS1 without changing the setting from WS1 to WS2, and the telephone device 70 also maintains WS1. Therefore, the wireless connection according to WS1 is reconstructed between the multi-function device 10 and the calling device 70 (S372).

(Pattern 3)
As shown in pattern 3 in FIG. 7, when only the calling device 70 receives the OK notification, a wireless connection according to WS2 is established between the calling device 70 and the AP 6 (S380). A wireless connection according to WS2 is not established between the functional unit 10 and the AP 6. The control unit 50 of the multi-function device 10 is incapable of changing the setting when an OK notification is not received from the AP 6 (when an NG notification is received or when neither an NG notification nor an OK notification is received). The screen shown is displayed on the display unit 14 (S384). Further, the setting unit 56 deletes WS2 stored in the temporary setting area 42 and determines that the wireless connection according to WS1 should be reconstructed (S386). However, at this time, the wireless connection according to WS1 is not established between the multi-function device 10 and the calling device 70. This is because the calling device 70 establishes a wireless connection according to WS2 with the AP 6.

  As described above, in the case of pattern 3, the multi-function device 10 cannot transmit a connection completion notification to the call device 70 via the AP 6 by using the wireless connection according to WS2. In consideration of such a case, the control unit 80 of the call device 70 monitors whether the connection completion notification is received from the multi-function device 10 until a predetermined time has elapsed after the OK notification is received from the AP 6. (S382). In Pattern 3, since the connection completion notification is not received even after the predetermined time has elapsed, the control unit 80 deletes WS2 stored in the temporary setting area 94 and re-establishes the wireless connection according to WS1. It is determined that it should be constructed (S388). Thereby, in the case of pattern 3, the multi-function device 10 maintains WS1 without changing the setting from WS1 to WS2, and the telephone device 70 also maintains WS1. Therefore, the wireless connection according to WS1 is reconstructed between the multi-function device 10 and the telephone device 70 (S390).

(Pattern 4)
Although not shown, there may be a pattern in which neither the multi-function device 10 nor the call device 70 receives an OK notification. In this case, as in the case of Pattern 3, the setting unit 56 of the multi-function device 10 determines that the WS2 stored in the temporary setting area 42 should be deleted and the wireless connection according to WS1 should be reconstructed. (S386). Similarly to the case of Pattern 2, the control unit 80 of the call device 70 deletes WS2 stored in the temporary setting area 94 and determines that the wireless connection according to WS1 should be reconstructed ( S362). Thereby, in the case of the pattern 4, the multi-function device 10 maintains WS1 without changing the setting from WS1 to WS2, and the calling device 70 also maintains WS1. Therefore, the wireless connection according to WS1 is reconstructed between the multi-function device 10 and the telephone device 70.

  The wireless communication system 2 according to the third embodiment has been described in detail. In this embodiment, the call device 70 generates a reception completion notification 312 when changing wireless setting information (wireless setting information in the setting area 92) for wireless communication of FAX data from WS1 to WS2. It transmits to the functional device 10 (S348 in FIG. 6). When the reception completion notification 312 is received from the telephone device 70, the multi-function device 10 changes the setting from WS1 to WS2 (S352 in FIG. 6). On the other hand, when the reception completion notification 312 is not received (in the case of pattern 2 to pattern 4), the multi-function device 10 maintains WS1 without changing the setting from WS1 to WS2. In the case of Pattern 2 to Pattern 4, the telephone device 70 also maintains WS1. Thereby, it can suppress that different radio | wireless setting information is set to the multi-function device 10 and the telephone device 70. FIG. Therefore, regardless of whether or not the reception completion notification 312 in FIG. 6 is received, the multi-function device 10 obtains wireless setting information (wireless setting information in the setting area 38) for wirelessly communicating FAX data from WS1. Compared with the configuration changed to WS2, it is possible to suppress the occurrence of an event in which the multi-function device 10 and the calling device 70 cannot wirelessly communicate FAX data.

  In the present embodiment, the multi-function device 10 receives the reception completion notification 312 from the call device 70 via the AP 6 using the wireless connection according to WS2. The fact that the multi-function device 10 receives the reception completion notification 312 means that the multi-function device 10 and the call device 70 can perform wireless communication according to WS2. That is, according to the present embodiment, when it is confirmed that the multi-function device 10 and the telephone device 70 can perform wireless communication according to WS2, the multi-function device 10 can change the setting from WS1 to WS2. In the present embodiment, the reception completion notification 312 is an example of a “predetermined signal”. The connection completion notification 310 is an example of a “specific signal”.

(Modification of the third embodiment)
In the third embodiment, the multi-function device 10 transmits the connection completion notification 310 to the call device 70 when the OK notification is received from the AP 6, and the call device 70 receives the connection completion notification 310. The reception completion notification 312 is transmitted to the multi-function device 10. In this modification, a configuration opposite to that of the third embodiment is adopted. That is, when an OK notification is received from the AP 6, the control unit 80 of the calling device 70 transmits a connection completion notification to the calling device 70 via the AP 6 using the wireless connection according to WS 2. When the connection completion notification is received, the second transmission unit 60 of the multi-function device 10 transmits the reception completion notification to the call device 70 via the AP 6 using the wireless connection according to WS2. When the connection completion notification is received from the call device 70, the setting unit 56 of the multi-function device 10 erases WS1 stored in the main setting area 38 and newly stores WS2 in the main setting area 38. To do. Thereby, WS2 is newly set in the multi-function device 10 as wireless setting information for the multi-function device 10 to wirelessly communicate FAX data. In addition, when the reception completion notification is received from the multi-function device 10, the control unit 80 of the calling device 70 deletes WS1 stored in the main setting area 92 and newly adds WS2 to the main setting area 92. To store. As a result, WS2 is newly set in the call device 70 as wireless setting information for the call device 70 to wirelessly communicate FAX data. In the present modification, the connection completion notification transmitted from the call device 70 to the multi-function device 10 is an example of a “predetermined signal”.

Modifications of the above embodiments are listed below.
(1) Each of the above embodiments discloses an example in which the setting is changed from the ad hoc wireless setting information WS1 to the infrastructure wireless setting information WS2. However, the technology of each of the above embodiments can also be applied to a configuration in which the setting is changed from the infrastructure wireless setting information WS2 to the ad hoc wireless setting information WS1. Further, the present invention can be applied to a configuration in which setting change is performed from infrastructure wireless setting information WS2 to infrastructure wireless setting information WS3. Similarly, the technology of each of the embodiments described above can also be applied to the case where the setting is changed from the ad hoc wireless setting information WS1 to the ad hoc wireless setting information WS4. When the setting is changed from WS2 to WS1 and when the setting is changed from WS1 to WS4, a process of trying to configure a wireless connection with AP 6 (for example, S16 in FIG. 2, FIG. 3). S54, etc.) are not executed. That is, when WS1 is received, the calling device 70 may transmit a reception completion notification to the multi-function device 10 and change the setting from WS2 to WS1. The multi-function device 10 may change the setting from WS2 to WS1 when a reception completion notification is received. Further, when WS4 is received, the calling device 70 may transmit a reception completion notification to the multi-function device 10 and change the setting from WS1 to WS4. The multi-function device 10 may change the setting from WS1 to WS4 when a reception completion notification is received from the call device 70. In the present modification, the reception completion notification transmitted from the calling device 70 to the multi-function device 10 is an example of “predetermined signal”.

(2) In each of the above embodiments, the target data communicated between the multi-function device 10 and the call device 70 is FAX data. That is, generally speaking, FAX data is an example of “specific data”. However, the “specific data” is not limited to FAX data, but is voice data (for example, voice data of answering machine), image data other than FAX data communicated via PSTN 8, and other types of data (for example, text data). It may be.

(3) Also, in each of the above embodiments, in S10 of FIG. 2, S210 of FIG. 5, and S310 of FIG. 6, the setting change for inputting WS2 via the operation unit 12 of the multi-function device 10 The operation is performed. However, for example, when the multi-function device 10 is connected to a wired LAN via the wired interface 22, WS2 is input via an operation unit of a specific PC (not shown) connected to the wired LAN. A setting change operation may be executed. In this case, the specific PC may transmit WS2 to the multi-function device 10 via the wired LAN. The multi-function device 10 may determine that an instruction for changing WS1 to WS2 is input when WS2 is received from the specific PC.

(4) Also, in the first embodiment, as shown in FIG. 4, the telephone device 70 changes the setting from WS1 to WS2 after transmitting the connection completion notification 122 (after S92) (S96). Instead of this configuration, the calling device 70 may execute the process of S96 first and then execute the process of S92. Similarly, in the second embodiment, the calling device 70 may execute the process of S296 of FIG. 5 first and then execute the process of S292. Similarly, in the third embodiment, the calling device 70 may execute the process of S354 of FIG. 6 first and then execute the process of S348. That is, generally speaking, the “predetermined signal” is transmitted to the first wireless communication device before the second wireless communication device changes the first wireless setting information to the second wireless setting information. Alternatively, after the second wireless communication device changes the first wireless setting information to the second wireless setting information, it may be transmitted to the first wireless communication device.

(5) In the first embodiment, it is assumed that the call device 70 receives WS2 transmitted from the multi-function device 10 in S46 of FIG. 3 (S48, S50 in FIG. 3). As an example, the call device 70 may transmit a reception completion notification to the multi-function device 10 when receiving the WS 2. The multi-function device 10 stores WS2 in the main setting area 38 when the reception completion notification is received from the call device 70 and the connection completion notification 122 is received (S94 in FIG. 4) (FIG. 4). (S98) may be executed. The multi-function device 10 does not need to execute the process of storing WS2 in the main setting area 38 (the process of S98 in FIG. 4) when the reception completion notification is not received or when the connection completion notification is not received. Good.

(6) Further, in each of the above embodiments, the case where the call device 70 is an accessory device of the multi-function device 10 has been described as an example, but the present invention is not limited thereto. For example, a PC may be used instead of the call device 70. Specifically, when the multi-function device 10 and the PC perform wireless communication according to WS 1, the user may execute a setting change operation in the multi-function device 10. Thereby, the multi-function device 10 and the PC may execute the processes of the above-described embodiments and change the settings. In this case, for example, print data for the PC to instruct the multi-function device 10 to execute printing is an example of “specific data”.

(7) In each of the above-described embodiments, the case where the telephone device 70 is connected to the PSTN 8 has been described as an example. That is, the multi-function device 10 may be connected to the PSTN 8 and the user may execute a setting change operation on the multi-function device 10.

  Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

  WS1: Wireless setting information, WS2: Wireless setting information, 2: Wireless communication system, 10: Multi-function device, 70: Call device, 122: Connection completion notification, 212: Reception completion notification, 310: Connection completion notification, 312: Reception Completion notice

The present invention is a first wireless communication device that is wirelessly connected to a second wireless communication device, wherein the second wireless communication device uses wireless connection according to wireless setting information for communicating specific data. The first wireless setting information currently set in the first wireless communication device is used as the wireless setting information for communicating the specific data with the communication unit that communicates the specific data with the wireless communication device. When the instruction for changing to the second wireless setting information is input, the second wireless setting information is changed to the second wireless setting information by using the first wireless connection according to the first wireless setting information. Communication with the specific data when a predetermined signal is received from the second wireless communication device using the first wireless connection and the first transmission unit that transmits to the second wireless communication device; The second wireless setting as the wireless setting information for When the predetermined signal is not received from the second wireless communication device using the first wireless connection, the wireless setting information for communicating the specific data is set. A setting unit for maintaining the first wireless setting information, wherein the predetermined signal is the first wireless that is currently set in the second wireless communication device by the second wireless communication device; The setting unit, which is a signal to be transmitted to the first wireless communication device using the first wireless connection when changing the setting information to the second wireless setting information. Is a wireless communication device.
In addition, the present invention is a second wireless communication device that is wirelessly connected to the first wireless communication device, and uses the wireless connection according to wireless setting information for transmitting specific data, and The first wireless setting information currently set in the second wireless communication device as the wireless setting information for communicating the specific data with the communication unit that communicates the specific data with one wireless communication device And receiving a second wireless setting information different from the first wireless information from the first wireless communication device by using the first wireless connection according to the second wireless communication device, and the second wireless communication device. If the currently set first wireless setting information is not changed to the second wireless setting information, the second wireless communication is performed without transmitting a predetermined signal to the first wireless communication device. The first wireless setting information currently set in the device When changing to the second wireless setting information, the first wireless connection is used to transmit the predetermined signal to the first wireless communication device, and the predetermined signal is changed to the first wireless setting information. When transmitting to the wireless communication device, the second wireless communication information is newly set as the wireless setting information for communicating the specific data, and the predetermined signal is transmitted to the first wireless communication device. And a setting unit that maintains the first wireless setting information as the wireless setting information for communicating the specific data when not transmitting to the second wireless communication device.
In this specification , the 1st radio | wireless communication apparatus wirelessly connected with a 2nd radio | wireless communication apparatus is disclosed as one form . The first wireless communication apparatus includes a communication unit, a first transmission unit, and a setting unit. The communication unit communicates the specific data with the second wireless communication apparatus using a wireless connection according to the wireless setting information for communicating specific data. The first transmission unit changes the first wireless setting information currently set in the first wireless communication device to the second wireless setting information as wireless setting information for communicating the specific data. When an instruction to do so is input, the second wireless setting information is transmitted to the second wireless communication device using the first wireless connection according to the first wireless setting information. When the second wireless communication device changes the first wireless setting information currently set in the second wireless communication device to the second wireless setting information, the setting unit transmits the second wireless communication device to the first wireless communication device. When a predetermined signal to be transmitted is received, second wireless setting information is newly set as wireless setting information for communicating the specific data. The setting unit maintains the first wireless setting information as wireless setting information for communicating the specific data when the predetermined signal is not received.

Claims (13)

A first wireless communication device wirelessly connected to a second wireless communication device,
Using a wireless connection according to wireless setting information for communicating specific data, a communication unit that communicates the specific data with the second wireless communication device,
As the wireless setting information for communicating the specific data, an instruction for changing the first wireless setting information currently set in the first wireless communication device to the second wireless setting information is input. A first transmitter configured to transmit the second wireless setting information to the second wireless communication device using a first wireless connection according to the first wireless setting information,
When the second wireless communication device changes the first wireless setting information currently set in the second wireless communication device to the second wireless setting information, the first wireless communication device When the predetermined signal to be transmitted to is received, the second wireless setting information is newly set as the wireless setting information for communicating the specific data,
A setting unit that maintains the first wireless setting information as the wireless setting information for communicating the specific data when the predetermined signal is not received;
A first wireless communication apparatus comprising: When the second wireless setting information is wireless setting information for wireless communication via an access point, the second wireless setting information is exchanged with the access point instead of the first wireless connection. Further comprising a trial unit for attempting to establish a second wireless connection according to
The setting unit receives the success information indicating that the trial is successful from the access point, and the wireless setting information for communicating the specific data when the predetermined signal is received. The first wireless communication apparatus according to claim 1, wherein the second wireless setting information is newly set.   The first transmission unit does not transmit the second wireless setting information to the second wireless communication device when the success information is not received from the access point even if the instruction is input. The 1st radio | wireless communication apparatus of 2.   When the success information is received from the access point, the first transmission unit reconstructs the first wireless connection instead of the second wireless connection established by the trial, 4. The first wireless communication apparatus according to claim 2, wherein the second wireless setting information is transmitted to the second wireless communication apparatus using the constructed first wireless connection. 5.   5. The first wireless communication apparatus according to claim 4, wherein the setting unit receives the predetermined signal from the second wireless communication apparatus using the reconfigured first wireless connection.   The predetermined signal is transmitted when the second wireless communication apparatus attempts to establish a wireless connection according to the second wireless setting information with the access point. The first wireless communication apparatus according to any one of claims 2 to 5, wherein the apparatus transmits a signal to the first wireless communication apparatus when receiving the success information from the access point.   6. The device according to claim 2, wherein the predetermined signal is a signal that the second wireless communication apparatus transmits to the first wireless communication apparatus when receiving the second wireless setting information. The first wireless communication apparatus according to one item.   The said setting part receives the said predetermined signal from the said 2nd radio | wireless communication apparatus via the said access point using the said 2nd radio | wireless connection constructed | assembled by the said trial. The first wireless communication apparatus. When the success information is received from the access point, a specific signal is transmitted to the second wireless communication device via the access point using the second wireless connection established by the trial. A second transmission unit for transmitting,
9. The signal according to claim 8, wherein the predetermined signal is a signal that is transmitted to the first wireless communication device via the access point when the second wireless communication device receives the specific signal. The first wireless communication device described.   The predetermined signal is transmitted when the second wireless communication apparatus attempts to establish a wireless connection according to the second wireless setting information with the access point. The first wireless communication device according to claim 8, wherein the device transmits a signal to the first wireless communication device via the access point when the device receives the success information from the access point. The second wireless communication device is an accessory of the first wireless communication device;
The first wireless setting information is wireless setting information for direct wireless communication between the first wireless communication device and the second wireless communication device without passing through the access point. Item 11. The first wireless communication apparatus according to any one of Items 2 to 10.   When the communication unit receives the specific data from the second wireless communication device using the wireless connection according to the wireless setting information for communicating the specific data, the specific data The first wireless communication apparatus according to any one of claims 1 to 11, further comprising a print control unit that causes the print execution unit to execute printing using data. A computer program for a first wireless communication device wirelessly connected to a second wireless communication device,
In the computer mounted on the first wireless communication device, each of the following processes:
A communication process for communicating the specific data with the second wireless communication device using a wireless connection according to wireless setting information for communicating specific data;
As the wireless setting information for communicating the specific data, an instruction for changing the first wireless setting information currently set in the first wireless communication device to the second wireless setting information is input. A first transmission process for transmitting the second wireless setting information to the second wireless communication device using a first wireless connection according to the first wireless setting information,
When the second wireless communication device changes the first wireless setting information currently set in the second wireless communication device to the second wireless setting information, the first wireless communication device When the predetermined signal to be transmitted to is received, the second wireless setting information is newly set as the wireless setting information for communicating the specific data,
A setting process for maintaining the first wireless setting information as the wireless setting information for communicating the specific data when the predetermined signal is not received;
A computer program that executes

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