JP2017195643A - Communication apparatus and printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique capable of performing appropriate processing after communicating image data by changing a radio communication interface.SOLUTION: A mobile terminal 50 uses NFC connection to receive a wireless setting value WS1 from a printer 10 (T32). The mobile terminal 50 uses the wireless setting value WS1 to establish Wi-Fi connection with the printer 10 (T44), and uses the Wi-Fi connection to transmit image data to the printer 10 (T50). The mobile terminal 50 displays a selection screen (T60), and disconnects the Wi-Fi connection (T72) if a user selects disconnection. On the other hand, if the user selects continuation, the mobile terminal 50 uses the Wi-Fi connection to transmit image data to the printer 10 (T80).SELECTED DRAWING: Figure 4

Description

  The present specification discloses a technique for performing wireless communication of data between a communication device and a printer.

  Patent Document 1 discloses a system including an initiator that is a wireless communication device that transmits data and a target that is a wireless communication device that receives the data. When the size of data scheduled to be transmitted to the target is equal to or smaller than the threshold value, the initiator transmits the data to the target using NFC. On the other hand, when the size of data scheduled to be transmitted to the target is larger than the threshold value, the initiator hands over the communication method from NFC to Bluetooth (registered trademark) and uses the Bluetooth (registered trademark) wireless connection, Send data to the target. When the initiator finishes transmitting data, the initiator disconnects the wireless connection.

JP 2010-178002 A

  In the technique of Patent Document 1 described above, the initiator always disconnects the wireless connection when the data transmission is completed after the communication method is handed over from NFC to Bluetooth (registered trademark). However, there may be situations where the wireless connection should continue.

  The present specification provides a technique capable of executing appropriate processing after changing the wireless communication interface and executing communication of image data.

  A communication device disclosed in the present specification includes a first wireless communication interface, a second wireless communication interface different from the first wireless communication interface, and a control unit. The control unit includes a set value communication unit, an establishment unit, an image data transmission unit, a determination unit, and a cutting unit. The setting value communication unit communicates wireless setting values with the printer via the first wireless communication interface. The wireless setting value is a setting value for establishing a wireless connection with the printer via the second wireless communication interface. The establishing unit establishes a wireless connection with the printer via the second wireless communication interface using the wireless setting value. The image data transmission unit transmits the first image data representing the first image to be printed to the printer via the second wireless communication interface using a wireless connection. The determination unit determines whether or not a device-side disconnect condition that is predetermined as a condition for disconnecting the wireless connection is satisfied after the first image data is transmitted. The disconnecting unit disconnects the wireless connection when it is determined that the device-side disconnecting condition is satisfied. When it is determined that the device-side disconnect condition is not satisfied, the image data transmitting unit further uses a wireless connection to display the second image representing the second image to be printed via the second wireless communication interface. Is sent to the printer.

According to the above configuration, when the communication device changes from the first wireless communication interface to the second wireless communication interface and transmits the first image data to the printer, the device-side disconnect condition is satisfied. Disconnect the wireless connection. On the other hand, when the device-side disconnect condition is not satisfied, the communication device maintains the wireless connection and transmits the second image data to the printer. As described above, the communication device can execute an appropriate process after changing the wireless communication interface and transmitting the first image data.

  The printer disclosed in this specification includes a first wireless communication interface, a second wireless communication interface different from the first wireless communication interface, a print execution unit, and a control unit. The control unit includes a set value communication unit, an establishment unit, an image data reception unit, a print control unit, a determination unit, and a cutting unit. The setting value communication unit communicates the wireless setting value with the communication device via the first wireless communication interface. The wireless setting value is a setting value for establishing a wireless connection with the communication device via the second wireless communication interface. The establishing unit establishes wireless connection with the communication device via the second wireless communication interface using the wireless setting value. The image data receiving unit receives the first image data from the communication device via the second wireless communication interface using a wireless connection. The print control unit causes the print execution unit to print the first image represented by the first image data. The determination unit determines whether or not a printer-side disconnect condition predetermined as a condition for disconnecting the wireless connection is satisfied after the first image data is received. The disconnecting unit disconnects the wireless connection when it is determined that the printer-side disconnecting condition is satisfied. The image data receiving unit further receives the second image data from the communication device via the second wireless communication interface using the wireless connection when it is determined that the printer-side disconnect condition is not satisfied. . The print control unit further causes the print execution unit to print the second image represented by the second image data.

  According to the above configuration, after the printer changes from the first wireless communication interface to the second wireless communication interface and receives the first image data from the communication device, the printer-side cutting condition is satisfied. Disconnect the wireless connection. On the other hand, when the printer-side disconnect condition is not satisfied, the printer maintains the wireless connection, receives the second image data from the communication device, and executes printing. In this way, the printer can execute an appropriate process after receiving the first image data by changing the wireless communication interface.

  A control method, a computer program, and a computer-readable recording medium storing the computer program for realizing the communication device and / or printer are also novel and useful. A communication system including the above-described communication device and a printer is also new and useful.

1 shows a configuration of a communication system. 2 is a flowchart of processing performed by a CPU of the printer according to the first embodiment. The flowchart of the process of CPU of the portable terminal of 1st Example is shown. The sequence diagram of a 1st example is shown. 6 is a flowchart of processing performed by a CPU of a printer according to a second embodiment. The flowchart of the process of CPU of the portable terminal of 2nd Example is shown. The sequence diagram of 2nd Example is shown.

(First embodiment)
(Configuration of communication system 2)
As shown in FIG. 1, the communication system 2 includes a printer 10 and a mobile terminal 50. Each of the printer 10 and the portable terminal 50 can execute NFC wireless communication (that is, NFC communication), which is a communication method of NFC (Near Field Communication) standard, and is further formulated by Wi-Fi Alliance. Wi-Fi wireless communication (i.e., Wi-Fi communication) that is a communication method that can be executed is possible.

(Configuration of Printer 10)
The printer 10 is a peripheral device (that is, a peripheral device such as a PC (abbreviation of personal computer)) capable of executing a printing function. The printer 10 includes an operation unit 12, a display unit 14, a print execution unit 16, a wireless LAN (abbreviation for Local Area Network) interface 20, an NFC interface 22, and a control unit 30. Hereinafter, the interface is described as “I / F”.

  The operation unit 12 includes a plurality of keys. The user can input various instructions to the printer 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 wireless LAN I / F 20 is an interface for executing Wi-Fi wireless communication. The Wi-Fi system conforms to, for example, the IEEE standard of IEEE (abbreviation of The Institute of Electrical and Electronics Engineers, Inc.) or a standard conforming thereto (for example, 802.11a, 11b, 11g, 11n, etc.). It is a wireless communication system.

  More specifically, the wireless LAN I / F 20 supports a WFD (abbreviation of Wi-Fi Direct) method formulated by Wi-Fi Alliance. Therefore, the control unit 30 can execute Wi-Fi communication via the wireless LAN I / F 20 using a WFD wireless network (hereinafter referred to as “WFDNW”). Details of the WFD method are described in “Wi-Fi Peer-to-Peer (P2P) Technical Specification Version 1.1” created by Wi-Fi Alliance. Details of the WFD method are also disclosed in US Patent Application Publication No. 2013/0260683, which is cited with reference to this document.

The NFC I / F 22 is an interface for executing NFC wireless communication. The NFC method is a wireless communication method in accordance with, for example, an international standard of ISO / IEC21481 or ISO / IEC18092. The NFC I / F 22 is an I / F called an NFC Forum Tag, and functions as an NFC standard IC tag. NF
The CI / F 22 includes a RAM and can store information supplied from the control unit 30. In the modification, the NFC I / F 22 may be an I / F called an NFC forum device that can operate in at least one of the P2P mode, the Reader / Writer mode, and the CE mode.

  The wireless LAN I / F 20 and the NFC I / F 22 are configured by physically different chips. The communication speed of wireless communication via the wireless LAN I / F 20 (for example, the maximum communication speed is 11 to 600 Mbps) is higher than the communication speed of wireless communication via the NFC I / F 22 (for example, the maximum communication speed is 106 to 424 kbps). Is also fast. The frequency of the carrier wave (for example, 2.4 GHz band and 5.0 GHz band) in the wireless communication via the wireless LAN I / F 20 is the frequency of the carrier wave (for example, 13.56 MHz band) in the wireless communication via the NFC I / F 22. Different. In addition, the maximum distance (for example, 100 m) that can be wirelessly communicated via the wireless LAN I / F 20 is larger than the maximum distance (for example, 10 cm) that can be wirelessly communicated via the NFC I / F 22.

  The control unit 30 includes a CPU 32 and a memory 34. The CPU 32 is a processor that executes various processes in accordance with programs stored in the memory 34. In FIG. 1, the memory 34 further stores a user ID list. However, the user ID list is used in a second embodiment described later.

(Configuration of mobile terminal 50)
The portable terminal 50 is a portable terminal device such as a cellular phone (for example, a smartphone), a PDA, a notebook PC, a tablet PC, a portable music playback device, a portable video playback device, and the like. The portable terminal 50 includes an operation unit 52, a display unit 54, a wireless LAN I / F 60, an NFC I / F 62, and a control unit 70.

  The operation unit 52 includes a plurality of keys. The user can input various instructions to the portable terminal 50 by operating the operation unit 52. The display unit 54 is a display for displaying various information. The wireless LAN I / F 60 and NFC I / F 62 are the same as the wireless LAN I / F 20 and NFC I / F 22 of the printer 10, respectively.

  The control unit 70 includes a CPU 72 and a memory 74. The CPU 72 is a processor that executes various processes in accordance with programs stored in the memory 74. The above programs include an OS (Operation System) program and a printer application. Hereinafter, the application is abbreviated as “application”.

  The printer application is a program for causing the printer 10 to execute a printing function. The printer application may be installed on the portable terminal 50 from a server on the Internet, or may be installed on the portable terminal 50 from a medium shipped with the printer 10.

(WFD method)
Next, the WFD method will be described. In the WFD standard, the three states of a WFD device are a Group Owner state (hereinafter referred to as “G / O state”), a client state (hereinafter referred to as “CL state”), and a device state. Is defined. The WFD device can selectively operate in one of the above three states.

  A WFD device in a G / O state (that is, a G / O device) is a device that forms a wireless network (that is, a WFDNW) in which the WFD device operates as a master station. A CL state WFD device (that is, a CL device) is a device that operates as a slave station of the WFDNW. A WFD device in a device state (that is, a device device) is a device that does not belong to the WFDNW.

  The WFDNW to which both the G / O device and the CL device belong is formed by one of the following two procedures, for example. In the first procedure, the pair of device devices execute wireless communication called G / O negotiation. Thereby, one of the pair of device devices is determined to be in the G / O state (that is, the G / O device), and the other is determined to be in the CL state (that is, the CL device). Then, the G / O device forms a WFDNW and establishes a connection with the CL device. Thereby, a WFDNW to which both the G / O device and the CL device belong is formed. In the second procedure, the device apparatus spontaneously shifts to the G / O state without executing the G / O negotiation, and forms the WFDNW. In this case, after the WFDNW is formed, the other device devices do not execute the G / O negotiation, shift to the CL state, and establish a connection with the G / O device. Thereby, a WFDNW to which both the G / O device and the CL device belong is formed.

The G / O device can execute wireless communication of the target data with the CL device without passing through other devices. The target data is data including information on the network layer of the OSI reference model and information on an upper layer (for example, application layer) than the network layer, and includes, for example, image data representing an image to be printed. In addition, the G / O device can relay wireless communication of target data between a pair of CL devices. As described above, in the WFDNW, each device can execute wireless communication of target data without using an access point (hereinafter referred to as “AP”) configured separately from each device. . That is, it can be said that the WFD method is a wireless communication method in which an AP is not used.

  In addition, the G / O device cannot execute wireless communication of the target data with a device device that does not belong to the WFDNW, but performs wireless communication of connection data with the device device to connect the device device. Can be established. As a result, the G / O device can cause the device device to participate in the WFDNW.

  The connection data is data including information of a lower layer (for example, physical layer, data link layer, etc.) than the network layer of the OSI reference model (that is, data not including information of the network layer). The connection data includes, for example, a probe request / response signal, provision discovery request / response signal, authentication request / response signal, association request / response signal, WSC Exchange, 4-way handshake, and the like. In the following, Request and Response are abbreviated as “Req.” And “Res.”, Respectively.

The Probe Req. Signal is a signal for searching for a device (for example, a G / O device, AP) that operates as a master station of the wireless network, and the Probe Res. Signal is a response signal. Provision Discovery Req. Signal is a WPS (short for Wi-Fi Protected Setup) method (for example,
(Push button method, PIN code method, etc.), and the Provision Discovery Res. Signal is a response signal. The Authentication Req. Signal is a signal for confirming the authentication method, and the Authentication Res. Signal is a response signal thereof. The Association Req. Signal is a signal for requesting connection, and the Association Res. Signal is a response signal. WSC Exchange is a signal for supplying various information such as passwords. 4-Way Handshake is a signal for executing authentication.

(Processing executed by CPU 32 of printer 10; FIG. 2)
Next, processing executed by the CPU 32 of the printer 10 will be described with reference to FIG. When the printer 10 is turned on, the printer 10 is not connected to any wireless network and is in a device state of the WFD standard. When the printer 10 is turned on, the CPU 32 stores a value indicating the device status in the memory 34 as a value indicating the status of the printer 10 (hereinafter referred to as “WFD status value”).

  Further, the CPU 32 generates a wireless setting value to be used by the WFDNW when the printer 10 is powered on. The wireless setting value includes an SSID (abbreviation of service set identifier), BSSID (abbreviation of basic service set identifier), an authentication method, an encryption method, and a password. The SSID and BSSID are identification information for identifying the WFDNW. More specifically, the SSID is a WFDNW network identifier, and the BSSID is the MAC address of the printer 10. The authentication method, encryption method, and password are information for executing device authentication, data encryption, and the like in the WFDNW.

  The CPU 32 generates an SSID and a password by randomly generating a character string. However, the BSSID, the authentication method, and the encryption method are predetermined information, and are not information generated by the CPU 32. The CPU 32 stores the generated wireless setting value in the memory 34 and further supplies the generated wireless setting value to the NFC I / F 22. Thereby, the wireless setting value is stored in the RAM in the NFC I / F 22.

In S <b> 10, the CPU 32 monitors whether a connection according to the NFC method (hereinafter referred to as “NFC connection”) is established between the NFC I / F 22 of the printer 10 and the NFC I / F 62 of the portable terminal 50. The NFC I / F 22 of the printer 10 periodically transmits a request signal for establishing an NFC connection to the outside. Similarly, the NFC I / F 62 of the portable terminal 50 also periodically transmits a request signal to the outside. When the distance between the pair of NFC I / Fs 22 and 62 is equal to or less than the maximum distance (for example, 10 cm) that allows NFC communication, one NFC I / F receives a request signal from the other I / F and sends a response signal. Transmit to the other I / F. Thereby, an NFC connection is established between the pair of NFC I / Fs 22 and 62. The NFC I / F 22 of the printer 10 supplies information indicating that the NFC connection has been established to the control unit 30. As a result, the CPU 32 determines YES in S10, and proceeds to S12.

  As described above, the wireless setting value is stored in advance in the RAM in the NFC I / F 22 of the printer 10. When the NFC connection is established, the NFC I / F 62 of the portable terminal 50 reads the wireless setting value from the NFC I / F 22 of the printer 10. That is, the CPU 72 of the mobile terminal 50 receives the wireless setting value from the printer 10 via the NFC I / F 62. In other words, the CPU 32 of the printer 10 transmits the wireless setting value to the portable terminal 50 via the NFC I / F 22 by storing the wireless setting value in the RAM in the NFC I / F 22 in advance. Hereinafter, the wireless setting value transmitted from the printer 10 to the portable terminal 50 and the SSID within the wireless setting value are referred to as “target wireless setting value” and “target SSID”, respectively.

  In S12, the CPU 32 spontaneously shifts the state of the printer 10 to the G / O state without executing the G / O negotiation. Specifically, the CPU 32 changes the WFD state value in the memory 34 from a value indicating the device state to a value indicating the G / O state. In step S12, the CPU 32 forms a WFDNW to which only the printer 10 that is a G / O device belongs.

  In S <b> 14, the CPU 32 monitors reception of a Probe Req. Signal including the target SSID from the portable terminal 50 via the wireless LAN I / F 20. When receiving the Probe Req. Signal including the target SSID, the CPU 32 determines YES in S14 and proceeds to S16. On the other hand, if the Probe 32 does not receive the Probe Req. Signal including the target SSID even after a predetermined time has elapsed after finishing S12, the CPU 32 determines NO in S14, skips S16 to S32, and skips S40. Proceed to

  In S16, the CPU 32 establishes a Wi-Fi connection with the mobile terminal 50 via the wireless LAN I / F 20. Specifically, the CPU 32 executes transmission of a Probe Res. Signal, reception of an Authentication Req. Signal, transmission of an Authentication Res. Signal, and the like. In these communication processes, the CPU 32 executes authentication and encryption according to the authentication method, encryption method, and password in the target wireless setting value. That is, the CPU 32 establishes a Wi-Fi connection with the portable terminal 50 using the target wireless setting value. As a result, a Wi-Fi connection is established between the wireless LAN I / F 20 of the printer 10 and the wireless LAN I / F 60 of the portable terminal 50. That is, the printer 10 causes the portable terminal 50 to participate as a CL device in the WFDNW in which the printer 10 is a G / O device. Thereby, a WFDNW to which both the printer 10 and the portable terminal 50 belong is formed.

  Note that the CPU 32 periodically transmits a survival confirmation signal to the portable terminal 50 via the wireless LAN I / F 20 in a state where the portable terminal 50 participates in the WFDNW. The CPU 32 can monitor that the portable terminal 50 leaves the WFDNW by monitoring the reception of the response signal to the survival confirmation signal.

In S18, the CPU 32 receives image data from the portable terminal 50 via the wireless LAN I / F 20 using the Wi-Fi connection (that is, using WFDNW). Image data has a relatively large data size. The communication speed of NFC communication is slower than the communication speed of WFD communication. Therefore, if a configuration in which wireless communication of image data is executed using NFC communication between the printer 10 and the portable terminal 50 is employed, a long time is required for wireless communication of image data. On the other hand, in the present embodiment, the printer 10 and the portable terminal 50 perform wireless communication of image data using Wi-Fi communication, and therefore can quickly perform wireless communication of image data.

  Next, in S <b> 20, the CPU 32 supplies the image data to the print execution unit 16. Thereby, the print execution unit 16 prints the image represented by the image data on the print medium. When the printing of the image is completed, the CPU 32 proceeds to S22.

  In S <b> 22, the CPU 32 transmits a print completion notification to the portable terminal 50 via the wireless LAN I / F 20 using Wi-Fi connection. The print completion notification is a command for notifying that printing has been completed.

  Next, the CPU 32 repeatedly executes the monitoring process of S30 and the monitoring process of S32 until it determines YES in S30 or S32. In S30, the CPU 32 monitors whether image data (for example, image data different from the image data in S18) is received from the portable terminal 50 via the wireless LAN I / F 20. When receiving image data from the portable terminal 50, the CPU 32 determines YES in S30 and executes S20 and S22 again.

  In S <b> 32, the CPU 32 monitors that the mobile terminal 50 is detached from the WFDNW. As described above, the CPU 32 periodically transmits a survival confirmation signal to the portable terminal 50 via the wireless LAN I / F 20. If the CPU 32 does not receive a response signal to the survival confirmation signal from the portable terminal 50, the CPU 32 determines that the portable terminal 50 has left the WFDNW (YES in S32), and proceeds to S40.

  In S40, the CPU 32 changes the state of the printer 10 from the G / O state to the device state. That is, the CPU 32 changes the WFD state value in the memory 34 from a value indicating the G / O state to a value indicating the device state. As a result, the WFDNW disappears.

  Next, in S42, the CPU 32 generates a new wireless setting value and stores the new wireless setting value in the memory 34 instead of the old wireless setting value. Even in S42, the CPU 32 generates an SSID and a password by randomly generating a character string. Therefore, the SSID and password generated in S42 are generally different from the SSID and password generated when the power is turned on (or when executing S42 in the past).

  Next, in S <b> 44, the CPU 32 supplies a new wireless setting value to the NFC I / F 22. As a result, the new wireless setting value is stored in the RAM of the NFC I / F 22 instead of the old wireless setting value. When S44 ends, the process returns to S10.

(Processing executed by CPU 72 of portable terminal 50; FIG. 3)
Next, processing executed by the CPU 72 of the mobile terminal 50 will be described with reference to FIG. The CPU 72 starts the process of FIG. 3 when an operation for starting the printer application and a predetermined operation are executed by the operation unit 52. The predetermined operation includes selection of image data in the memory 74 of the portable terminal 50 (that is, image data representing an image to be printed).

In S50, the CPU 72 monitors that the NFC connection is established (see S10 in FIG. 2). The NFC I / F 62 of the portable terminal 50 supplies information indicating that the NFC connection has been established to the control unit 70. As a result, the CPU 72 determines YES in S50, and receives the target wireless setting value from the printer 10 via the NFC I / F 62 in S52. CPU
72 stores the target wireless setting value in the memory 74.

  Next, in S54, the CPU 72 transmits a Probe Req. Signal including the target SSID to the printer 10 via the wireless LAN I / F 60 (see S14 in FIG. 2). Next, in S56, the CPU 72 establishes a Wi-Fi connection with the printer 10 via the wireless LAN I / F 60 (see S16 in FIG. 2). Specifically, the CPU 72 executes reception of a Probe Res. Signal, transmission of an Authentication Req. Signal, reception of an Authentication Res. Signal, and the like. The CPU 72 performs authentication and encryption according to the authentication method, encryption method, and password in the target wireless setting value. That is, the CPU 72 establishes a Wi-Fi connection with the printer 10 using the target wireless setting value. Thereby, the portable terminal 50 participates in WFDNW as CL apparatus.

  In S58, the CPU 72 transmits image data to the printer 10 via the wireless LAN I / F 60 using Wi-Fi connection (see S18 in FIG. 2). The image data is image data selected by the predetermined operation.

  Next, in S70, the CPU 72 monitors reception of a print completion notification from the printer 10 via the wireless LAN I / F 60 using Wi-Fi connection (see S22 in FIG. 2). When the CPU 72 receives a print completion notification, the CPU 72 determines YES in S70 and proceeds to S72.

  In S <b> 72, the CPU 72 displays a selection screen on the display unit 54. The selection screen includes a button indicating “continue” and a button indicating “disconnect” (see T60 in FIG. 3). When the user desires to perform further printing according to image data different from the transmitted image data, the user selects the button indicating “Continue”. When the user does not wish to perform further printing, “cut” is selected. Select the button indicating.

  Next, in S74, the CPU 72 determines whether a button indicating “continue” is selected or a button indicating “disconnect” is selected. If the CPU 72 determines that the button indicating “Continue” has been selected (YES in S74), it executes S58, S70, S72, and S74 again. When the user selects a button indicating “Continue”, the user further selects new image data from the memory 74. In S <b> 58 executed again, the CPU 72 transmits the newly selected image data to the printer 10. On the other hand, when the CPU 72 determines that the button indicating “disconnect” has been selected (NO in S74), the CPU 72 proceeds to S80.

  In S80, the CPU 72 leaves the mobile terminal 50 from the WFDNW (see YES in S32 of FIG. 2). In a state where the portable terminal 50 is participating in the WFDNW, the CPU 72 transmits a response signal to the printer 10 when receiving a survival confirmation signal from the printer 10. In S80, the CPU 72 leaves the WFDNW by shifting from the state in which the response signal is transmitted to the state in which the response signal is not transmitted. In addition, the CPU 72 deletes the target wireless setting value from the memory 74. When S80 is executed, the Wi-Fi connection between the wireless LAN I / F 20 of the printer 10 and the wireless LAN I / F 60 of the portable terminal 50 is disconnected. That is, in S80, the CPU 72 disconnects the mobile terminal 50 from the WFDNW and disconnects the Wi-Fi connection. When S80 ends, the process of FIG. 3 ends.

In S80 described above, the CPU 72 causes the portable terminal 50 to leave the WFDNW without transmitting a disconnection signal for disconnecting the Wi-Fi connection to the printer 10. Instead, in the modified example, the CPU 72 transmits a disconnection signal for disconnecting the Wi-Fi connection to the printer 10 to disconnect the Wi-Fi connection, so that the portable terminal 50 is connected to the WF.
You may make it detach | leave from DNW.

(Specific example: FIG. 4)
A specific example of this embodiment will be described with reference to FIG. Each process of FIG. 4 is implement | achieved by the flowchart of FIG.2 and FIG.3. In FIG. 4, thin line arrows indicate NFC communication, and thick line arrows indicate Wi-Fi communication. A broken arrow does not indicate any data communication, but indicates that the Wi-Fi connection is disconnected.

  At T10, the printer 10 is turned on. At T12, the printer 10 generates the wireless setting value WS1 (processing when the power is turned on in FIG. 2).

  At T20, the print application is activated and a predetermined operation is executed on the portable terminal 50 (trigger of processing in FIG. 3). Then, the user of the mobile terminal 50 brings the mobile terminal 50 close to the printer 10. Thereby, at T30, an NFC connection is established between the printer 10 and the portable terminal 50 (YES in S10 of FIG. 2, YES in S50 of FIG. 3). At T32, the wireless setting value WS1 is transmitted from the printer 10 to the portable terminal 50 (S52 in FIG. 3).

  At T40, the printer 10 shifts from the device state to the G / O state, and forms a WFDNW to which only the printer 10 belongs (S12 in FIG. 2). At T42, a Probe Req. Signal is transmitted from the portable terminal 50 to the printer 10 (YES in S14 of FIG. 2, S54 of FIG. 3). At T44, a Wi-Fi connection is established between the printer 10 and the portable terminal 50 (S16 in FIG. 2 and S56 in FIG. 3).

  At T50, image data is transmitted from the portable terminal 50 to the printer 10 (S18 in FIG. 2, S58 in FIG. 3). In T52, the printer 10 executes image printing (S20 in FIG. 2). At T54, a print completion notification is transmitted from the printer 10 to the portable terminal 50 (S22 in FIG. 2, YES in S70 in FIG. 3).

  At T60, the portable terminal 50 displays a selection screen (S72 in FIG. 3). Then, the portable terminal 50 determines whether or not the cutting condition is satisfied according to the selection result on the selection screen (S74 in FIG. 3). When the button indicating “disconnect” is selected (NO in S74 of FIG. 3), the portable terminal 50 determines that the disconnect condition is satisfied, and proceeds to case A. On the other hand, when the button indicating “Continue” is selected (YES in S74 of FIG. 3), the portable terminal 50 determines that the cutting condition is not satisfied and proceeds to Case B.

  In case A, at T70, the portable terminal 50 leaves the WFDNW (YES in S32 of FIG. 2, S80 of FIG. 3). Thereby, in T72, the Wi-Fi connection between the printer 10 and the portable terminal 50 is disconnected. At T74, the printer 10 shifts from the G / O state to the device state (S40 in FIG. 2). At T76, the printer 10 newly generates a wireless setting value WS2 (S42 and S44 in FIG. 2).

  In case B, image data is transmitted from the portable terminal 50 to the printer 10 at T80 (YES in S30 of FIG. 2, S58 of FIG. 3). In T82, the printer 10 executes image printing (S20 in FIG. 2). At T84, a print completion notification is transmitted from the printer 10 to the portable terminal 50 (S22 in FIG. 2, YES in S70 in FIG. 3). Thereafter, at T90, the portable terminal 50 displays a selection screen (S72 in FIG. 3). The portable terminal 50 determines again whether or not the cutting condition is satisfied according to the selection result on the selection screen (S74 in FIG. 3). Then, the above case A or case B is executed again according to the determination result.

(Effects of the first embodiment)
According to the present embodiment, the portable terminal 50 receives the wireless setting value WS1 from the printer 10 via the NFC I / F 62 (T32 in FIG. 4), and then uses the wireless setting value WS1 to establish a wireless LAN I / F 60. Is established with the printer 10 (T42, T44). Then, the portable terminal 50 transmits image data to the printer 10 via the wireless LAN I / F 60 using the Wi-Fi connection (T50). The portable terminal 50 displays the selection screen after the T50 image data is transmitted (T60). And the portable terminal 50 judges whether a cutting condition is satisfy | filled according to a user's selection result. That is, when the selection result is “disconnect”, the mobile terminal 50 determines that the disconnect condition is satisfied, and disconnects the Wi-Fi connection (T70, T72). Thereby, the portable terminal 50 does not need to transmit a response signal with respect to the survival confirmation signal. That is, the processing load on the mobile terminal 50 can be reduced. On the other hand, when the selection result is “continue”, the portable terminal 50 determines that the disconnection condition is not satisfied, maintains the Wi-Fi connection, uses the Wi-Fi connection, and uses the wireless LAN I / The image data is transmitted to the printer 10 via F60 (T80).

  As described above, according to the present embodiment, the portable terminal 50 changes the I / F for wireless communication from the NFC I / F 62 to the wireless LAN I / F 60, and transmits the image data of T50. Appropriate processing can be executed depending on whether or not the condition is satisfied (that is, according to the user's intention).

(Correspondence)
The portable terminal 50 is an example of “communication device”. The NFC I / F 62 and the wireless LAN I / F 60 are examples of the “first wireless communication interface” and the “second wireless communication interface” of the “communication device”, respectively. Wi-Fi connection is an example of “wireless connection”. The image data of T50 and the image data of T80 in FIG. 4 are examples of “first image data” and “second image data”, respectively. The print completion notification is an example of “predetermined notification”. Selecting “Disconnect” on the selection screen of T60 is an example of “the device-side disconnect condition is satisfied”.

  The process of S52, the process of S54 (and S56), the process of S58, the process of S70, the process of S72, the process of S74, and the process of S80 are each “set value communication unit” of “communication device”. , “Establishment unit”, “image data transmission unit”, “notification reception unit”, “display control unit”, “determination unit”, and “cutting unit”.

(Second embodiment)
Differences from the first embodiment will be described. In this embodiment, the memory 34 of the printer 10 stores a user ID list in which one or more user IDs are described. The user ID is identification information for identifying the user of the mobile terminal 50, and is set to the printer application by the user when the printer application is installed in the mobile terminal 50. In other words, it can be said that the user ID is identification information for identifying the mobile terminal 50.

The administrator of the printer 10 can register the user ID set in the portable terminal 50 in the printer 10 (that is, the user ID list) by operating the operation unit 12 of the printer 10. For example, if the user of the portable terminal 50 is a user who frequently uses the printer 10 (hereinafter referred to as “permanent user”), the administrator registers the user ID in the printer 10. For example, if the user of the portable terminal 50 is a user who uses the printer 10 temporarily (hereinafter referred to as “temporary user”), the administrator does not register the user ID in the printer 10. Accordingly, as will be described in detail later, when the permanent user causes the printer 10 to execute printing, the printer 10 does not disconnect the Wi-Fi connection after the end of printing (that is, in FIG. 5 described later). S22A is executed through YES in S21). As a result, the permanent user can cause the printer 10 to execute printing a plurality of times using the Wi-Fi connection. On the other hand, when the temporary user causes the printer 10 to execute printing, the printer 10 mainly disconnects the Wi-Fi connection after the printing is finished (that is, S40 is executed through NO in S21 described later). ) As a result, the processing load on the printer 10 can be reduced.

(Processing executed by CPU 32 of printer 10; FIG. 5)
The CPU 32 of the printer 10 executes the process of FIG. 5 instead of the process of FIG. In FIG. 5, the processing at power-on and the processing in S <b> 10 to S <b> 16 are the same as in FIG. 2. S18A is substantially the same as S18 of FIG. However, in S18A, the CPU 32 receives not only the image data but also the user ID set in the printer application of the portable terminal 50. S20 is the same as S20 of FIG.

  Next, in S21, the CPU 32 determines whether or not the user ID received in S18A is already registered in the user ID list in the memory 34. If the CPU 32 determines that the user ID has already been registered in the user ID list (YES in S21), in S22A, an inquiry notification is carried via the wireless LAN I / F 20 using the Wi-Fi connection. It transmits to the terminal 50 and progresses to S30A. The inquiry notification is a notification for displaying a selection screen on the portable terminal 50 and inquiring the user about “continue” and “disconnect”. S30A is substantially the same as S30 in FIG. However, in the case of YES in S30A, the CPU 32 receives not only the image data but also the user ID. S32 is the same as S32 of FIG.

  If the CPU 32 determines that the user ID has not been registered in the user ID list (NO in S21), it skips S22A to S32 and proceeds to S40. S40 to S44 are the same as S40 to S44 of FIG. When S40 is executed after NO in S21, the CPU 32 of the printer 10 extinguishes the WFDNW while the portable terminal 50 is participating in the WFDNW. That is, the printer 10 disconnects the Wi-Fi connection. In this case, since the portable terminal 50 does not receive the survival confirmation signal from the printer 10, it can know that the WFDNW has disappeared, that is, the Wi-Fi connection has been disconnected. On the other hand, when S40 is executed after YES in S32, the portable terminal 50 has already left the WFDNW. That is, the portable terminal 50 disconnects the Wi-Fi connection. As described above, in this embodiment, the printer 10 may actively disconnect the Wi-Fi connection (NO in S21), and the mobile terminal 50 may actively disconnect the Wi-Fi connection. (Yes in S21, YES in S32).

(Processing executed by CPU 72 of portable terminal 50; FIG. 6)
CPU72 of the portable terminal 50 performs the process of FIG. 6 instead of the process of FIG. S50 to S56 are the same as S50 to S56 of FIG. S58A is substantially the same as S58 of FIG. However, in S58A, the CPU 72 transmits not only the image data but also the user ID set in the printer application of the portable terminal 50 (see S18A in FIG. 5).

In S70A, the CPU 72 monitors reception of an inquiry notification from the printer 10 via the wireless LAN I / F 60 using Wi-Fi connection (see S22A in FIG. 5). When receiving an inquiry notification from the printer 10, the CPU 72 determines YES in S70A and proceeds to S72. S72 to S80 are the same as S72 to S80 of FIG. On the other hand, if the CPU 72 does not receive an inquiry notification (refer to NO in S21 of FIG. 5) from the printer 10 even after a predetermined time has elapsed after finishing S58A, the CPU 72 determines NO in S70A and proceeds to S70B. move on. In S70B, the CPU 72 monitors the disappearance of the WFDNW. If the WFDNW does not disappear (NO in S70B), that is, if a survival confirmation signal is received from the printer 10, the process returns to S70A. On the other hand, if the WFDNW disappears (YES in S70B), that is, if no survival confirmation signal is received from the printer 10 for a predetermined period, the CPU 72 skips S72 to S80 and ends the process of FIG. To do.

(Specific example: FIG. 7)
Next, a specific example of this embodiment will be described with reference to FIG. Each process in FIG. 7 is realized by the flowcharts in FIGS. 5 and 6. T10 to T52 are substantially the same as T10 to T52 in FIG. However, in T50A, the image data and the user ID are transmitted from the portable terminal 50 to the printer 10 (S18A in FIG. 5 and S58A in FIG. 6).

  When the printing of T52 is completed, the printer 10 determines whether or not the cutting condition is satisfied depending on whether or not the user ID of T50A has been registered in the user ID list (S21 in FIG. 5). If the user ID is not registered in the user ID list (NO in S21 in FIG. 5), the printer 10 determines that the cutting condition is satisfied and proceeds to Case C. On the other hand, if the user ID has already been registered in the user ID list (YES in S21 in FIG. 5), the printer 10 determines that the cutting condition is not satisfied, and proceeds to Case D.

  In case C, the printer 10 extinguishes the WFDNW at T100 (S40 in FIG. 5). Thereby, in T102, the Wi-Fi connection between the printer 10 and the portable terminal 50 is disconnected. That is, the printer 10 mainly disconnects the Wi-Fi connection. In T104, the printer 10 newly generates a wireless setting value WS2 (S42 and S44 in FIG. 5).

  In case D, an inquiry notification is transmitted from the printer 10 to the portable terminal 50 at T110 (YES in S22A in FIG. 5 and S70A in FIG. 6). Thereby, in T120, the portable terminal 50 displays a selection screen (S72 of FIG. 6). Then, the portable terminal 50 determines whether or not the cutting condition is satisfied according to the selection result on the selection screen (S74 in FIG. 6). When the button indicating “disconnect” is selected (NO in S74 of FIG. 6), the portable terminal 50 determines that the disconnect condition is satisfied, and proceeds to case D1. On the other hand, when the button indicating “continue” is selected (YES in S74 of FIG. 6), the portable terminal 50 determines that the cutting condition is not satisfied, and proceeds to case D2.

  T130 to T136 of case D1 are the same as T70 to T76 of case A in FIG. That is, in case D1, the mobile terminal 50 mainly disconnects the Wi-Fi connection.

  T140 to T150 of case D2 are substantially the same as T80 to T90 of case B of FIG. However, at T140, the image data and the user ID are transmitted from the portable terminal 50 to the printer 10 (YES in S30A of FIG. 5, S58A of FIG. 6). When the printing of T142 is completed, the printer 10 determines again whether or not the cutting condition is satisfied depending on whether or not the user ID of T140 has been registered in the user ID list (S21 in FIG. 5). At T144, an inquiry notification is transmitted from the printer 10 to the portable terminal 50 (S22A in FIG. 5 and YES in S70A in FIG. 6). The portable terminal 50 determines again whether or not the cutting condition is satisfied according to the selection result on the selection screen of T150. Then, according to the determination result, the above case D1 or case D2 is executed again.

(Effect of the second embodiment)
Similarly to the first embodiment, the mobile terminal 50 changes the I / F for wireless communication from the NFC I / F 62 to the wireless LAN I / F 60 and transmits the image data of T50A in FIG. Appropriate processing can be executed (see cases D1 and D2 in FIG. 7) depending on whether or not the condition is satisfied (that is, according to the user's intention).

In the present embodiment, the printer 10 transmits the wireless setting value WS1 via the NFC I / F 22.
Is transmitted to the portable terminal 50 (T32 in FIG. 7), and then the Wi-Fi connection via the wireless LAN I / F 20 is established with the portable terminal 50 using the wireless setting value WS1 (T42, T44). Then, the printer 10 receives image data from the portable terminal 50 via the wireless LAN I / F 20 using the Wi-Fi connection (T50A). After receiving the image data of T50A, the printer 10 determines whether or not the cutting condition is satisfied by determining whether or not the user ID of T50A has been registered in the user ID list. That is, when the user ID is not registered in the user ID list, the printer 10 determines that the disconnection condition is satisfied, and disconnects the Wi-Fi connection (T100, T102). As a result, the printer 10 does not need to send a survival confirmation signal to the portable terminal 50. That is, the processing load on the printer 10 can be reduced. On the other hand, if the user ID is already registered in the user ID list, the printer 10 determines that the disconnection condition is not satisfied, maintains the Wi-Fi connection, and uses the Wi-Fi connection. Image data is received from the portable terminal 50 via the wireless LAN I / F 20 (T140).

  As described above, according to the present embodiment, the printer 10 changes the I / F for wireless communication from the NFC I / F 22 to the wireless LAN I / F 20 and receives the image data of T50A, and then satisfies the cutting condition. Appropriate processing can be executed depending on whether or not the user ID is registered (that is, whether or not the user ID is already registered).

(Correspondence)
The NFC I / F 22 and the wireless LAN I / F 20 are examples of the “first wireless communication interface” and the “second wireless communication interface” of the “printer”, respectively. The image data of T50A and the image data of T140 in FIG. 7 are examples of “first image data” and “second image data”, respectively. The inquiry notification is an example of “predetermined notification”. That the user ID is not registered in the user ID list is an example of “the printer-side cutting condition is satisfied”.

  Supplying the wireless setting value to the NFC I / F 22 when the printer 10 is turned on or S44 in FIG. 5 (that is, as a result, the wireless setting value is transmitted to the portable terminal 50) is “printer”. This is an example of processing executed by the “setting value communication unit”. The processing of S18A (and S30A) in FIG. 5 is an example of processing executed by the “image data receiving unit” and “identification information receiving unit” of “printer”. In addition, the processes of S14 (and S16), S20, S21, and S40 of FIG. 5 are respectively performed as “establishment unit”, “printing control unit”, “determination unit”, “determination unit”, “ It is an example of the process performed by the cutting | disconnection part.

  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 modifications of the above embodiment are listed below.

(Modification 1) In the first and second embodiments, the printer 10 spontaneously shifts to the G / O state to form a WFDNW (S12 in FIGS. 2 and 5), and the portable terminal 50 is a WFDNW as a CL device. (S54 and S56 in FIGS. 3 and 6). Instead of this, the following (Modification 1-1) or (Modification 1-2) may be employed.

(Modification 1-1) When the printer application is activated, the mobile terminal 50 spontaneously shifts to the G / O state and forms a WFDNW. At this time, the portable terminal 50 generates a wireless setting value to be used in the WFDNW. When the NFC connection is established between the printer 10 and the portable terminal 50, the portable terminal 50 transmits the wireless setting value to the printer 10 using the NFC connection. Even in this configuration, the printer 10 and the portable terminal 50 can establish a Wi-Fi connection using the wireless setting value. That is, the printer 10 can participate as a CL device in the WFDNW in which the mobile terminal 50 operates as a G / O device. In other words, the “setting value communication unit” of “communication device” may transmit the wireless setting value to the printer, and the “establishment unit” of “communication device” may print to the wireless network whose communication device is the master station. In order to participate as a slave station, a wireless connection with the printer may be established. In addition, the “setting value communication unit” of “printer” may receive a wireless setting value from the communication device, and the “establishment unit” of “printer” may connect the printer to the wireless network where the communication device is a master station. In order to participate as a slave station, a wireless connection may be established with a communication device.

  In the above (Modification 1-1), when it is determined that the disconnection condition is satisfied, the mobile terminal 50 may disconnect the Wi-Fi connection by extinguishing the WFDNW. Further, when the printer 10 determines that the disconnection condition is satisfied, the printer 10 may be disconnected from the WFDNW to disconnect the Wi-Fi connection. That is, the “disconnection unit” of the “communication device” may disconnect the wireless connection by deleting the wireless network when it is determined that the device-side disconnect condition is satisfied. The “cutting unit” of “printer” may disconnect the wireless connection by disconnecting the printer from the wireless network when it is determined that the printer-side cutting condition is satisfied.

(Modification 1-2) The printer 10 and the portable terminal 50 may execute WFD G / O negotiation. In this case, as a result of the negotiation, one of the printer 10 and the portable terminal 50 is a G / O device, and the other is a CL device. For example, when the printer 10 is a G / O device, the wireless setting value is transmitted from the printer 10 to the portable terminal 50 by NFC communication as in the first and second embodiments. Further, for example, when the portable terminal 50 is a G / O device, the wireless setting value is transmitted from the portable terminal 50 to the printer 10 by NFC communication as in the above (Modification 1-1). Generally speaking, a wireless network may be formed by spontaneously becoming one of the “communication device” and the “printer” as a master station, and the “communication device” and the “printer” By performing the negotiation, a wireless network may be formed.

(Modification 2) In the first and second embodiments, the portable terminal 50 displays a selection screen (S72 in FIGS. 3 and 6), and whether or not the cutting condition is satisfied according to the selection result of the user. Is determined (S74 in FIGS. 3 and 6). Instead of this, the following (Modification 2-1) or (Modification 2-2) may be employed.

(Modification 2-1) Information indicating “continuation” or “disconnection” may be registered in advance in the memory 74 of the portable terminal 50 by the user. In this case, the mobile terminal 50 may determine whether or not the cutting condition is satisfied according to the information in the memory 74 in S74 of FIGS. 3 and 6 without displaying the selection screen. In the present modification, information indicating “disconnect” is registered in the memory 74 as an example that “the device-side disconnect condition is satisfied”.

(Modification 2-2) In the second embodiment, when the printer 10 determines that the user ID has already been registered (YES in S21 in FIG. 5), the printer 10 does not send an inquiry notification to the portable terminal 50. If information indicating “continue” is transmitted to the portable terminal 50 and it is determined that the user ID is unregistered (NO in S21 of FIG. 5), information indicating “disconnected” may be transmitted to the portable terminal 50. Good. In this case, the portable terminal 50 may determine whether or not the cutting condition is satisfied according to the information received from the printer 10 in S74 of FIGS. 3 and 6 without displaying the selection screen. . In the present modification, receiving information indicating “disconnect” from the printer 10 is an example of “the device-side disconnect condition is satisfied”.

As described above, the selection screen is not displayed in the above (Modification 2-1) and (Modification 2-2). Accordingly, the “communication device” may not include the “display control unit”.

(Modification 3) In the second embodiment, the printer 10 determines whether or not the cutting condition is satisfied depending on whether or not the user ID has been registered in the user ID list (S21 in FIG. 5). . Instead of this, the following (Modification 3-1) or (Modification 3-2) may be employed.

(Modification 3-1) In the memory 34 of the printer 10, information indicating “continuation” or “disconnection” may be registered in advance by the user instead of the user ID list. In this case, the printer 10 may determine whether the cutting condition is satisfied according to the information in the memory 34 in S21 of FIG. In the present modification, information indicating “cut” is registered in the memory 34 is an example of “the printer-side cut condition is satisfied”.

(Modification 3-2) The printer 10 determines that the cutting condition is satisfied when the free space in the memory 34 is less than the predetermined value in S21 of FIG. 5, and the free space in the memory 34 is determined to be the predetermined value. When it is above, it may be determined that the cutting condition is not satisfied. According to this configuration, the printer 10 shifts from the G / O state to the device state when the free space in the memory 34 is less than the predetermined value (that is, the Wi-Fi connection is disconnected). Can free up more space. In the present modification, the free capacity in the memory 34 being less than a predetermined value is an example of “the printer-side cutting condition is satisfied”.

(Modification 4) In the first and second embodiments, the portable terminal 50 executes the determination in S74 of FIGS. 3 and 6 every time image data is transmitted to the printer 10. Instead, when the portable terminal 50 determines that the cutting condition is not satisfied after transmitting the first image data to the printer 10 (NO in S74), the portable terminal 50 transmits the second and subsequent image data to the printer 10. After that, the Wi-Fi connection may be maintained without executing the determination of S74. That is, the “determination unit” of the “communication device” does not need to determine again whether or not the device-side disconnect condition is satisfied after the second image data is transmitted.

(Modification 5) In the second embodiment, the printer 10 executes the determination in S21 of FIG. 5 every time it receives image data from the portable terminal 50. Instead, when the printer 10 determines that the cutting condition is not satisfied after receiving the first image data from the portable terminal 50 (YES in S21), the printer 10 receives the second and subsequent image data from the portable terminal 50. After the reception, the Wi-Fi connection may be maintained until the portable terminal 50 leaves the WFDNW without executing the determination of S21. That is, the “determination unit” of the “printer” does not have to determine again whether the printer-side cutting condition is satisfied after the second image data is received.

(Modification 6) In the first embodiment, the printer 10 may not send a print completion notification to the portable terminal 50. In this case, in FIG. 3, after executing S58, the portable terminal 50 may execute S72 without executing S70. That is, the “communication device” may not include the “notification receiving unit”.

(Modification 7) In FIG. 5 of the second embodiment, the printer 10 executes the determination of S21 after the printing is completed (that is, after the end of S20). Alternatively, the printer 10 may execute the determination in S21 before printing is completed. That is, the “determination unit” of “printer” may determine whether the printer-side cutting condition is satisfied before the printing of the first image is completed.

(Modification 8) In S12 of FIGS. 2 and 5, the printer 10 forms a wireless network by shifting to the G / O state of the WFD standard. Instead, the printer 10 may form a wireless network in which the printer 10 operates as an AP by activating so-called Soft AP. In this modification, an AP realized by SoftAP is
It is an example of a “master station”.

(Modification 9) The “first wireless communication interface” is not limited to the I / F for executing NFC communication, and for example, for executing BlueTooth (registered trademark) communication, transfer jet communication, infrared communication, etc. It may be an I / F. Further, the “second wireless interface” is not limited to an I / F for executing Wi-Fi communication, and may be, for example, an I / F for executing BlueTooth (registered trademark) communication.

(Modification 10) The “communication device” is not limited to the portable terminal 50, and may be a printer, a scanner, a copier, a multi-function device, a PC, a server, or the like. The “printer” may further include not only a printing function but also a scanning function, a FAX function, a telephone function, and the like.

(Modification 11) In the first and second embodiments, the CPU 32 of the printer 10 or the CPU 72 of the portable terminal 50 executes the program (that is, software), thereby realizing the processes shown in FIGS. Instead, at least one of the processes in FIGS. 2 to 7 may be realized by hardware such as a logic circuit.

  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.

  2: communication system, 10: printer, 12: operation unit, 14: display unit, 16: print execution unit, 20: wireless LAN I / F, 22: NFC I / F, 30: control unit, 32: CPU, 34: memory , 50: mobile terminal, 52: operation unit, 54: display unit, 60: wireless LAN I / F, 62: NFC I / F, 70: control unit, 72: CPU, 74: memory

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.
The following features are the elements described in the claims at the beginning of the application.
(Item 1)
Communication equipment,
A first wireless communication interface;
A second wireless communication interface different from the first wireless communication interface;
A control unit,
The controller is
A setting value communication unit that communicates a wireless setting value with a printer via the first wireless communication interface, wherein the wireless setting value establishes a wireless connection with the printer via the second wireless communication interface. The set value communication unit, which is a set value for
An establishing unit that establishes the wireless connection with the printer via the second wireless communication interface using the wireless setting value;
An image data transmission unit that transmits first image data representing a first image to be printed to the printer via the second wireless communication interface using the wireless connection;
A determination unit that determines whether or not a device-side disconnection condition that is predetermined as a condition for disconnecting the wireless connection is satisfied after the first image data is transmitted;
A cutting unit for cutting off the wireless connection when it is determined that the device-side cutting condition is satisfied,
The image data transmission unit further uses the wireless connection to output a second image to be printed via the second wireless communication interface when it is determined that the device-side disconnect condition is not satisfied. A communication device that transmits second image data representing the above to the printer.
(Item 2)
The communication device according to Item 1, wherein the determination unit further determines again whether the device-side disconnect condition is satisfied after the second image data is transmitted.
(Item 3)
The control unit further includes:
A display control unit that causes a display screen of the communication device to display a selection screen for allowing the user to select whether or not to disconnect the wireless connection after the first image data is transmitted;
The determination unit
In the selection screen, when the user selects that the wireless connection should be disconnected, it is determined that the device-side disconnect condition is satisfied,
Item 3. The communication device according to Item 1 or 2, wherein when the user selects that the wireless connection should not be disconnected on the selection screen, the device-side disconnect condition is determined not to be satisfied.
(Item 4)
The set value communication unit receives the wireless set value from the printer via the first wireless communication interface;
The establishing unit establishes the wireless connection with the printer in order to allow the communication device to participate as a slave station in a wireless network in which the printer is a master station.
4. The item according to claim 1, wherein the disconnecting unit disconnects the wireless device by disconnecting the communication device from the wireless network when it is determined that the device-side disconnect condition is satisfied. Communication equipment.
(Item 5)
The control unit further includes:
A notification receiving unit configured to receive a predetermined notification from the printer via the second wireless communication interface using the wireless connection, and the predetermined notification is a print completion of the first image; The notification receiving unit, which is a notification transmitted from the printer,
The determination unit determines whether or not the device-side disconnect condition is satisfied after the first image data is transmitted to the printer and the predetermined notification is received from the printer. The communication device according to any one of Items 1 to 4.
(Item 6)
The communication device according to any one of Items 1 to 5, wherein the first wireless communication interface is an interface for executing wireless communication by an NFC method which is a communication method of NFC (Near Field Communication) standard.
(Item 7)
A computer program for a communication device,
In the computer mounted on the communication device, the following processes, that is,
A setting value communication process for communicating a wireless setting value with a printer via a first wireless communication interface of the communication device, wherein the wireless setting value is a second wireless communication interface of the communication device; The setting value communication process, which is a setting value for establishing a wireless connection with the printer via the second wireless communication interface different from the first wireless communication interface;
An establishing process for establishing the wireless connection with the printer via the second wireless communication interface using the wireless setting value;
A first image data transmission process for transmitting first image data representing a first image to be printed to the printer via the second wireless communication interface using the wireless connection;
A determination process for determining whether or not a device-side disconnect condition predetermined as a condition for disconnecting the wireless connection is satisfied after the first image data is transmitted;
When it is determined that the device-side disconnect condition is satisfied, a disconnection process for disconnecting the wireless connection;
When it is determined that the device-side disconnect condition is not satisfied, the second image data representing the second image to be printed is transmitted through the second wireless communication interface using the wireless connection. A second image data transmission process to be transmitted to the printer;
A computer program that executes
(Item 8)
A printer,
A first wireless communication interface;
A second wireless communication interface different from the first wireless communication interface;
A print execution unit;
A control unit,
The controller is
A setting value communication unit that communicates a wireless setting value with a communication device via the first wireless communication interface, wherein the wireless setting value is a wireless connection via the second wireless communication interface. The set value communication unit, which is a set value for establishing
An establishing unit for establishing the wireless connection with the communication device via the second wireless communication interface using the wireless setting value;
An image data receiving unit that receives the first image data from the communication device via the second wireless communication interface using the wireless connection;
A print control unit that causes the print execution unit to print the first image represented by the first image data;
A determination unit that determines whether or not a printer-side disconnect condition that is predetermined as a condition for disconnecting the wireless connection is satisfied after the first image data is received;
A cutting unit for cutting off the wireless connection when it is determined that the printer-side cutting condition is satisfied,
When it is determined that the printer-side disconnect condition is not satisfied, the image data receiving unit further uses the wireless connection to connect the second communication communication device to the second communication device via the second wireless communication interface. Receive image data,
The print control unit further causes the print execution unit to print a second image represented by the second image data.
(Item 9)
The printer further includes:
A memory for storing identification information for identifying an external device;
The control unit further includes:
An identification information receiving unit that receives specific identification information for identifying the communication device from the communication device via the second wireless communication interface using the wireless connection;
The determination unit
When the specific identification information is not stored in the memory, it is determined that the printer-side cutting condition is satisfied,
Item 9. The printer according to Item 8, wherein when the specific identification information is stored in the memory, the printer-side cutting condition is determined not to be satisfied.
(Item 10)
The set value communication unit transmits the wireless set value to the printer via the first wireless communication interface;
The establishing unit establishes the wireless connection with the communication device in order to allow the communication device to participate as a slave station in a wireless network in which the printer is a master station,
10. The printer according to item 8 or 9, wherein the disconnecting unit disconnects the wireless connection by deleting the wireless network when it is determined that the printer-side disconnecting condition is satisfied.

Claims (10)

Communication equipment,
A first wireless communication interface;
A second wireless communication interface different from the first wireless communication interface;
A control unit,
The controller is
A setting value communication unit that communicates a wireless setting value with a printer via the first wireless communication interface, wherein the wireless setting value establishes a wireless connection with the printer via the second wireless communication interface. The set value communication unit, which is a set value for
An establishing unit that establishes the wireless connection with the printer via the second wireless communication interface using the wireless setting value;
An image data transmission unit that transmits first image data representing a first image to be printed to the printer via the second wireless communication interface using the wireless connection;
A determination unit that determines whether or not a device-side disconnection condition that is predetermined as a condition for disconnecting the wireless connection is satisfied after the first image data is transmitted;
A cutting unit for cutting off the wireless connection when it is determined that the device-side cutting condition is satisfied,
The image data transmission unit further uses the wireless connection to output a second image to be printed via the second wireless communication interface when it is determined that the device-side disconnect condition is not satisfied. A communication device that transmits second image data representing the above to the printer.   The communication device according to claim 1, wherein the determination unit further determines again whether the device-side disconnect condition is satisfied after the second image data is transmitted. The control unit further includes:
A display control unit that causes a display screen of the communication device to display a selection screen for allowing the user to select whether or not to disconnect the wireless connection after the first image data is transmitted;
The determination unit
In the selection screen, when the user selects that the wireless connection should be disconnected, it is determined that the device-side disconnect condition is satisfied,
3. The communication device according to claim 1, wherein when the user selects that the wireless connection should not be disconnected on the selection screen, the communication device determines that the device-side disconnect condition is not satisfied. The set value communication unit receives the wireless set value from the printer via the first wireless communication interface;
The establishing unit establishes the wireless connection with the printer in order to allow the communication device to participate as a slave station in a wireless network in which the printer is a master station.
4. The device according to claim 1, wherein, when it is determined that the device-side disconnect condition is satisfied, the disconnecting unit disconnects the communication device from the wireless network and disconnects the wireless connection. 5. The communication device described. The control unit further includes:
A notification receiving unit configured to receive a predetermined notification from the printer via the second wireless communication interface using the wireless connection, and the predetermined notification is a print completion of the first image; The notification receiving unit, which is a notification transmitted from the printer,
The determination unit determines whether or not the device-side disconnect condition is satisfied after the first image data is transmitted to the printer and the predetermined notification is received from the printer. The communication device according to any one of claims 1 to 4.   The communication device according to any one of claims 1 to 5, wherein the first wireless communication interface is an interface for performing wireless communication by an NFC method which is a communication method of NFC (Near Field Communication) standard. . A computer program for a communication device,
In the computer mounted on the communication device, the following processes, that is,
A setting value communication process for communicating a wireless setting value with a printer via a first wireless communication interface of the communication device, wherein the wireless setting value is a second wireless communication interface of the communication device; The setting value communication process, which is a setting value for establishing a wireless connection with the printer via the second wireless communication interface different from the first wireless communication interface;
An establishing process for establishing the wireless connection with the printer via the second wireless communication interface using the wireless setting value;
A first image data transmission process for transmitting first image data representing a first image to be printed to the printer via the second wireless communication interface using the wireless connection;
A determination process for determining whether or not a device-side disconnect condition predetermined as a condition for disconnecting the wireless connection is satisfied after the first image data is transmitted;
When it is determined that the device-side disconnect condition is satisfied, a disconnection process for disconnecting the wireless connection;
When it is determined that the device-side disconnect condition is not satisfied, the second image data representing the second image to be printed is transmitted through the second wireless communication interface using the wireless connection. A second image data transmission process to be transmitted to the printer;
A computer program that executes A printer,
A first wireless communication interface;
A second wireless communication interface different from the first wireless communication interface;
A print execution unit;
A control unit,
The controller is
A setting value communication unit that communicates a wireless setting value with a communication device via the first wireless communication interface, wherein the wireless setting value is a wireless connection via the second wireless communication interface. The set value communication unit, which is a set value for establishing
An establishing unit for establishing the wireless connection with the communication device via the second wireless communication interface using the wireless setting value;
An image data receiving unit that receives the first image data from the communication device via the second wireless communication interface using the wireless connection;
A print control unit that causes the print execution unit to print the first image represented by the first image data;
A determination unit that determines whether or not a printer-side disconnect condition that is predetermined as a condition for disconnecting the wireless connection is satisfied after the first image data is received;
A cutting unit for cutting off the wireless connection when it is determined that the printer-side cutting condition is satisfied,
When it is determined that the printer-side disconnect condition is not satisfied, the image data receiving unit further uses the wireless connection to connect the second communication communication device to the second communication device via the second wireless communication interface. Receive image data,
The print control unit further causes the print execution unit to print a second image represented by the second image data. The printer further includes:
A memory for storing identification information for identifying an external device;
The control unit further includes:
An identification information receiving unit that receives specific identification information for identifying the communication device from the communication device via the second wireless communication interface using the wireless connection;
The determination unit
When the specific identification information is not stored in the memory, it is determined that the printer-side cutting condition is satisfied,
The printer according to claim 8, wherein when the specific identification information is stored in the memory, the printer-side cutting condition is determined not to be satisfied. The set value communication unit transmits the wireless set value to the printer via the first wireless communication interface;
The establishing unit establishes the wireless connection with the communication device in order to allow the communication device to participate as a slave station in a wireless network in which the printer is a master station,
The printer according to claim 8 or 9, wherein the disconnecting unit disconnects the wireless connection by erasing the wireless network when it is determined that the printer-side disconnecting condition is satisfied.

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