JP6552561B2 - Communication apparatus, control method and program - Google Patents

Description

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

  A technique for performing network setting processing for wirelessly connecting a communication device such as a printing device and an external device such as an access point is known.

  Patent Document 1 describes that the communication partner device connects the communication device and the external device by transmitting AP information (SSID or the like) identifying the external device to the communication device.

JP 2015-023440 A

  By the way, in recent years, communication devices capable of using a plurality of frequency bands (for example, 2.4 GHz and 5 GHz) have become widespread. However, conventionally, when a communication apparatus capable of using a plurality of frequency bands does not receive information on a frequency band used for connection with an external device in the network setting process, an appropriate frequency band among the plurality of frequency bands is selected. It was not considered about the control for using and connecting with an external device.

  Therefore, in the present invention, when a communication device capable of using a plurality of frequency bands does not receive information on a frequency band used for connection with an external device, the communication device is appropriately selected from the plurality of frequency bands. The purpose is to connect to an external device using a frequency band.

In order to solve the above problems, a printing apparatus of the present invention is a printing apparatus capable of performing wireless communication in a frequency band of 2.4 GHz and a frequency band of 5 GHz,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band Connection means for wirelessly connecting to the external device by preferentially using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device;
Printing means for performing printing based on the print job;
Have
The setting information includes neither the frequency band information corresponding to the 2.4 GHz frequency band nor the frequency band information corresponding to the 5 GHz frequency band, and the external device according to the 2.4 GHz frequency band When the wireless connection with the external device can not be established, the wireless connection is established with the external device according to the 5 GHz frequency band.
In addition, the printing apparatus of the present invention can execute wireless communication in the frequency band of 2.4 GHz and the frequency band of 5 GHz, and determines the wireless connection to be a slave station that does not determine the communication channel to use and the communication channel to use. A printing apparatus capable of maintaining in parallel a wireless connection to become a master station,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band And a connection means for establishing a wireless connection with the slave station by using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device;
Printing means for performing printing based on the print job;
When the printing apparatus maintains the wireless connection of the printing apparatus to the slave station using the external apparatus and the frequency band of 5 GHz, the wireless connection of the printing apparatus to the former master station can not be established. Control means for controlling
It is characterized by having.
In addition, the printing apparatus of the present invention can execute wireless communication in the 2.4 GHz frequency band and the 5 GHz frequency band, and the first wireless connection via the external device with the first information processing apparatus, A second wireless connection directly to the information processing apparatus 2 without going through the external device, and a printing apparatus capable of maintaining in parallel,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band Connection means for wirelessly connecting to the external device by preferentially using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device;
Printing means for performing printing based on the print job;
Control means for controlling the second wireless connection not to be established when the first wireless connection is established using the 5 GHz frequency band;
It is characterized by having.
Further, the printing apparatus of the present invention is a printing apparatus capable of performing wireless communication in a 2.4 GHz frequency band and a 5 GHz frequency band,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band A connection means for wirelessly connecting to the external device using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device;
Printing means for performing printing based on the print job;
Have
When the setting information includes any one of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the frequency included in the setting information A wireless connection is established with the external device using a frequency band based on band information.

The printing apparatus according to the present invention is a printing apparatus capable of performing wireless communication in the first frequency band and the second frequency band,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
When the setting information does not include any of frequency band information corresponding to the first frequency band and frequency band information corresponding to the second frequency band, the first frequency band information may be transmitted from the second frequency band. A connection means for wirelessly connecting to the external device using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device, printing means for executing printing based on the print job,
Have
The setting information includes neither frequency band information corresponding to the first frequency band nor frequency band information corresponding to the second frequency band, and the external device When wireless connection can not be made, wireless connection is made with the external device by the second frequency band,
When wireless connection is made with the external device by the second frequency band, it is used in wireless connection by the second frequency band between the external device and the printing device by Dynamic Frequency Selection or Transmit Power Control. Channels are changed to other channels.
Further, the printing apparatus of the present invention can execute wireless communication in the first frequency band and the second frequency band, and determines a wireless connection to be a slave station that does not determine the communication channel to be used and the communication channel to be used A printing apparatus capable of maintaining in parallel a wireless connection to become a master station,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
When the setting information does not include any of frequency band information corresponding to the first frequency band and frequency band information corresponding to the second frequency band, the first frequency band information may be transmitted from the second frequency band. And a connection means for establishing a wireless connection with the slave station by using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device, printing means for executing printing based on the print job,
In a state where the printing apparatus maintains a wireless connection with the printing apparatus to the slave station using the second frequency band with the external apparatus, a wireless connection with the printing apparatus to the previous master station is established. Control means for controlling so as not to be
Have
When wireless connection is made with the external device by the second frequency band, it is used in wireless connection by the second frequency band between the external device and the printing device by Dynamic Frequency Selection or Transmit Power Control. Channels are changed to other channels.
Further, the printing apparatus of the present invention can execute wireless communication in the first frequency band and the second frequency band, and the first wireless connection via the external device with the first information processing apparatus, and A second wireless connection directly to the information processing apparatus 2 without going through the external device, and a printing apparatus capable of maintaining in parallel,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
When the setting information does not include any of frequency band information corresponding to the first frequency band and frequency band information corresponding to the second frequency band, the first frequency band information may be transmitted from the second frequency band. A connection means for wirelessly connecting to the external device using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device, printing means for executing printing based on the print job,
Control means for controlling so that the second wireless connection is not established when the first wireless connection is established using the second frequency band;
Have
When wirelessly connected to the external device using the second frequency band, it is used in the wireless connection using the second frequency band between the external device and the printing device by Dynamic Frequency Selection or Transmit Power Control. Channels are changed to other channels.
The printing apparatus according to the present invention is a printing apparatus capable of performing wireless communication in the first frequency band and the second frequency band,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
When the setting information does not include any of frequency band information corresponding to the first frequency band and frequency band information corresponding to the second frequency band, the first frequency band information may be transmitted from the second frequency band. A connection means for wirelessly connecting to the external device using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device, printing means for executing printing based on the print job,
Have
When the setting information includes any one of the frequency band information corresponding to the first frequency band and the frequency band information corresponding to the second frequency band, the frequency included in the setting information Wireless connection with the external device by a frequency band based on band information;
When wireless connection is made with the external device by the second frequency band, it is used in wireless connection by the second frequency band between the external device and the printing device by Dynamic Frequency Selection or Transmit Power Control. Channels are changed to other channels.

  According to the present invention, when a communication device capable of using a plurality of frequency bands does not receive information on a frequency band used for connection with an external device, the communication device can use an appropriate frequency among the plurality of frequency bands. It is possible to connect to an external device using a band.

FIG. 1 is a schematic view of a communication system. It is a schematic block diagram of a portable terminal. It is a schematic block diagram of a printing apparatus. It is an example of a wireless connection profile. 6 is a flowchart illustrating network setting processing by an automatic setting method executed by a printing apparatus. 6 is a flowchart illustrating network setting processing by an automatic setting method executed by a printing apparatus. It is a flowchart which shows the network setting process using the terminal device which a printing apparatus performs. It is a flowchart which shows the network setting process using the terminal device which a printing apparatus performs. It is a flowchart which shows the network setting process using the terminal device which a printing apparatus performs.

  Hereinafter, embodiments of the present invention will be exemplarily described in detail with reference to the drawings. However, the relative arrangement of components, the display screen, and the like described in the present embodiment are not intended to limit the scope of the present invention only to those unless otherwise specified.

First Embodiment
An information processing apparatus and a communication apparatus included in the communication system of the present embodiment will be described. Although a personal computer (PC) is illustrated as an information processing apparatus in the present embodiment, the present invention is not limited to this. Various devices such as a mobile terminal, a smartphone, a tablet terminal, a PDA (Personal Digital Assistant), a digital camera, and the like can be applied as the information processing apparatus. Further, in the present embodiment, a printer is exemplified as the communication apparatus, but the present invention is not limited to this, and various apparatuses can be applied as long as the apparatus can perform wireless communication with the information processing apparatus. For example, if it is a printer, it can apply to an ink jet printer, a full color laser beam printer, a monochrome printer, etc. Further, it can be applied not only to a printer but also to a copying machine, a facsimile machine, a portable terminal, a smartphone, a PC, a tablet terminal, a PDA, a digital camera, a music playback device, a television, and the like. In addition, the present invention is also applicable to a multifunction peripheral having a plurality of functions such as a copying function, a fax function, and a printing function.

  First, the configuration of the information processing apparatus of the present embodiment and the communication apparatus capable of communicating with the information processing apparatus of the present embodiment will be described. Further, although the following configuration is described as an example in the present embodiment, the present embodiment is applicable to an apparatus capable of communicating with a communication apparatus, and in particular, functions are limited as shown in this figure. is not.

  FIG. 2 is a block diagram showing a schematic configuration of the terminal apparatus 200 which is an information processing apparatus of the present embodiment.

  The terminal device 200 includes a main board 201 that performs main control of the device.

  In the main board 201, the CPU 202 is a system control unit and controls the entire terminal device 200. The ROM 203 stores various programs such as a control program executed by the CPU 202 and an embedded operating system (hereinafter, OS) program. In the present embodiment, the control program stored in the ROM 203 performs software control such as scheduling and task switching under the control of the embedded OS stored in the ROM 203. The RAM 204 is configured by a memory such as a static RAM (SRAM), stores program control variables, setting values registered by the user, management data of the terminal device 200, and the like, and is provided with various work buffer areas. The setting information data may be stored not in the RAM 204 but in another storage area such as the ROM 203 or the non-volatile memory 205.

  The non-volatile memory 205 is configured by a memory such as a flash memory, and stores data to be retained even when the power is turned off. Specifically, the nonvolatile memory 205 includes network information such as passwords and authentication information for connecting to the network, setting information of the terminal device 200 such as a list of communication devices connected in the past such as MAC addresses and SSIDs, and the like. Remembered. In the present embodiment, connection information for an easy connection mode to be described later is also stored. These data may be stored not in the nonvolatile memory 205 but in other storage areas such as the ROM 203 and the RAM 204. In addition, the CPU 202 may expand the setting information stored in the ROM 303 or the non-volatile memory 205 in the RAM 204 to perform processing using stored data.

  The image memory 206 is configured by a memory such as a DRAM (dynamic RAM), and stores various data such as image data received via the wireless LAN unit 211 and the image data processed by the code decoding processing unit 210.

  The memory configuration of the terminal device 200 is not limited to this form, and the number, characteristics, storage capacity, and the like can be appropriately changed according to the application and purpose. For example, the image memory 206 and the RAM 204 may be shared. Although the image memory 206 is configured by a DRAM or the like, the present invention is not limited to this, and may be configured by a hard disk (hereinafter, HDD), a non-volatile memory, or the like.

  The data conversion unit 207 generates data such as page description language (PDL), and performs data conversion such as color conversion and image conversion on image data.

  The operation unit 208 and the display unit 209 receive various inputs to the terminal device 200 and display various information related to the terminal device 200.

  The coding / decoding processing unit 210 performs various processing such as coding / decoding processing and enlargement / reduction processing on the image data.

  The wireless LAN unit 211 is a unit for realizing wireless LAN communication conforming to a standard such as Wi-Fi (Wireless Fidelity) (registered trademark). The wireless LAN unit 211 performs functions such as beacon detection processing and authentication processing for establishing a wireless LAN connection, and transmission of a print job to a communication apparatus that has established a wireless LAN connection. The wireless LAN unit 211 is connected to the system bus 213 via the bus cable 212. Note that the CPU 202 can control the wireless LAN unit 211 to operate an access point (AP) in the terminal device 200.

  In the present embodiment, the terminal device 200 transmits a print job for causing the printing apparatus 300 to perform printing via the wireless LAN unit 211. Note that the job to be sent is not limited to the print job. For example, a scan job for causing the printing apparatus 300 to scan, a copy job for causing the printing apparatus 300 to perform copying, a setting command for changing the setting of the printing apparatus 300, or the like may be used. Further, if the communication device of the present embodiment is a storage or the like, data (image data, moving image data, etc.) to be saved in the communication device may be transmitted in addition to the job. When a scan job is transmitted to the printing apparatus 300, image data generated by scanning a document based on the scan job is transmitted to the terminal apparatus 200.

  The wireless LAN unit 211 may directly communicate with the printing apparatus 300 by wireless communication, or may communicate via an external apparatus existing outside the terminal apparatus 200 or the printing apparatus 300. Note that the external device includes an access point which is a device such as a router device, and a device capable of relaying communication other than the access point. In this embodiment, the wireless LAN unit 211 uses the IEEE 802.11 series standard (Wi-Fi), but Bluetooth (registered trademark) or the like may be used, for example. In the present embodiment, a method in which the terminal device 200 and the printing device 300 are directly connected without using an external device is referred to as a direct connection method. A method in which the terminal device 200 and the printing device 300 are connected via an external device is referred to as an infrastructure (hereinafter referred to as an infrastructure) connection method. Further, in the present embodiment, the connection via the access point is assumed to be performed by the wireless LAN unit 211.

  The various components 202 to 212 are mutually connected via a system bus 213 managed by the CPU 202.

  The terminal device 200 may include a communication unit other than the wireless LAN unit 211. Further, the terminal device 200 may include a plurality of communication units, and may be communicable by a plurality of types of communication methods. Communication may be directly performed by wireless communication, or may be performed via an access point outside the terminal device 200 installed on the network. Examples of the communication method include Bluetooth Low Energy (registered trademark), NFC (Near Field Communication; ISO / IEC IS 18092), Wi-Fi Aware, and the like. Moreover, you may communicate not by wireless but by wire.

  FIG. 3 is a block diagram showing a schematic configuration of the printing apparatus 300 which is the communication apparatus of the present embodiment.

  The printing apparatus 300 includes a main board 301 that performs main control of the apparatus.

  In the main board 301, a CPU 302 is a system control unit and controls the entire printing apparatus 300. The ROM 303 stores various programs such as a control program executed by the CPU 302 and an embedded OS program. In the present embodiment, the control program stored in the ROM 303 performs software control such as scheduling and task switching under the control of the embedded OS stored in the ROM 303. The RAM 304 is configured by a memory such as an SRAM, and stores program control variables, setting values registered by the user, management data of the printing apparatus 300, setting information of mode change conditions described later, and various work buffer areas. ing. These data may be stored not in the RAM 304 but in other storage areas such as the ROM 303 and the nonvolatile memory 305.

  The nonvolatile memory 305 is configured by a memory such as a flash memory, and stores data that is to be retained even when the power is turned off. Specifically, network information such as password and authentication information for connecting to the network, a list of external devices connected in the past such as MAC address and SSID, menu items such as printing mode, printing of correction information of the recording head, etc. The setting information and the like of the device 300 are stored. The setting information data may be stored not in the non-volatile memory 305 but in another storage area such as the ROM 303 or the RAM 304. The CPU 302 may expand the setting information stored in the ROM 303 or the non-volatile memory 305 in the RAM 304 to perform processing using the setting information.

  The image memory 306 is constituted by a memory such as a DRAM, and stores various data such as image data received via the wireless LAN unit 316 or the like, and image data processed by the encoding / decoding processing unit 312.

  The memory configuration of the printing apparatus 300 is not limited to this form, and the number, characteristics, storage capacity, and the like can be appropriately changed according to the application and purpose. For example, the image memory 306 and the RAM 304 may be shared. Further, the image memory 306 is configured by a DRAM or the like, but is not limited to this, and may be configured by a hard disk (hereinafter, HDD), a non-volatile memory, or the like.

  The data conversion unit 307 performs various image processing such as smoothing processing, recording density correction processing, color correction, and the like on the image data included in the received job via an image processing control unit (not shown). By executing these processes, the data conversion unit 307 converts the image data to be printed into high-definition print data, and outputs the converted print data to the recording unit 314.

  The reading unit 310 optically reads a document by a CIS image sensor (contact image sensor) or the like. The reading control unit 308 performs various types of image processing such as binarization processing and halftoning processing on the image signal read by the reading unit 310 to output high definition image data.

  The operation unit 309 and the display unit 311 receive various inputs to the printing apparatus 300 and display various information related to the printing apparatus 300.

  The code decoding processing unit 312 performs various processes such as a code decoding process and an enlargement / reduction process on the image data.

  The paper supply unit 313 holds a recording medium for printing, and supplies the recording medium to the recording unit 314 under the control of the recording control unit 315. The paper feeding unit 313 has a plurality of paper feeding cassettes.

  The recording control unit 315 controls which portion of the plurality of sheet feeding cassettes the sheet is to be fed. The recording control unit 315 also plays a role of updating the information in the RAM 304 by periodically reading out various information such as the status of the recording unit 314. Specifically, the recording control unit 315 updates information such as the state of the apparatus such as in use, during sleep, and when an error occurs, and information such as the remaining amount of the ink tank.

The recording unit 314 forms (prints) an image on a recording medium with a recording agent such as ink based on print data output from the data conversion unit 307 and print setting information included in the print job (printing). Process).

The wireless LAN unit 316 is a unit for realizing wireless LAN communication conforming to a standard such as Wi-Fi. The wireless LAN unit 316 has functions such as connection information transmission processing and authentication processing for establishing a wireless LAN connection, and reception of a job from a terminal device that has established a wireless LAN connection. The wireless LAN unit 316 is also connected to the system bus 318 via a bus cable 317. The CPU 302 can control the wireless LAN unit 211 to operate an access point in the printing apparatus 300. That is, it is possible to operate the printing apparatus 300 as Group Owner or software AP. Also, in the present embodiment, the connection via the access point is assumed to be performed by the wireless LAN unit 316. The various components 302 to 317 are mutually connected via a system bus 318 managed by the CPU 302.

  The printing apparatus 300 may include a communication unit other than the wireless LAN unit 316. The communication may be directly performed by wireless communication, or may be performed via an access point outside the printing apparatus 300 installed on the network. In the present embodiment, in the case of direct communication, the printing apparatus 300 operates as a GroupOwner or a soft AP. As a communication system, Bluetooth, NFC, Wi-Fi Aware etc. are mentioned, for example. Further, not only wireless communication but also wired communication may be performed by a wired LAN or the like. The printing apparatus 300 receives a job from another external apparatus such as the terminal apparatus 200 via a network using these communication methods. Accept. In the present embodiment, the printing apparatus 300 does not use a channel corresponding to the 5 GHz frequency band but uses a channel corresponding to the 2.4 GHz frequency band in direct communication. However, it is not limited to this form. For example, the printing apparatus 300 performs direct communication using a channel (a channel that is not used by a specific device such as a weather radar) that is not switched by DFS, which will be described later, among channels corresponding to a frequency band of 5 GHz. May be.

  In the present embodiment, the printing apparatus 300 uses at least one frequency band of 2.4 GHz and 5 GHz for wireless connection based on the standard of the IEEE 802.11 series. The printing apparatus 300 has a communication channel corresponding to an available frequency band. For example, if the 2.4 GHz frequency band is available, the printing apparatus 300 has 13 communication channels assigned to a predetermined frequency band in the 2.4 GHz frequency band. Also, for example, if the frequency band of 5 GHz is available, the printing apparatus 300 has 24 communication channels assigned to a predetermined frequency band of the frequency band of 5 GHz.

  FIG. 1 shows a communication system of the present embodiment. The communication system according to the present embodiment includes a terminal device 200, a printing device 300, and an access point 400. The printing apparatus 300 and the terminal apparatus 200 can communicate with each other through a wireless LAN connection via an access point 400 outside each apparatus. The printing apparatus 300 and the terminal apparatus 200 can also operate as access points by enabling the access points in the respective apparatuses. Therefore, for example, when one of the devices becomes an access point and the other device is connected to the access point, the terminal device 200 and the printing device 300 can also make a direct wireless LAN connection without going through the access point 400. It is. Further, since the terminal device 200 and the printing device 300 both have a wireless LAN function, peer-to-peer (hereinafter, P2P) communication becomes possible by mutual authentication.

  The access point 400 is a router device. A router device is a device that relays data communication between devices (for example, between an information processing device and a communication device). In this embodiment, the router device serves as an access point, and relays data communication between devices connected to the access point of the router device. Note that the communication method used by the router device may be either a wireless communication method or a wired communication method, or both of them. In this embodiment, the router device can communicate at least by the wireless communication method. It has a wireless LAN router function.

  In the present embodiment, the printing apparatus 300 is connected to the access point 400 via a wireless LAN. That is, the terminal device 200 can communicate with the printing device 300 via the access point 400. That is, the terminal device 200 is connected to the printing device 300 by infrastructure connection. By establishing the infrastructure connection, the printing device 300 and the terminal device 200 can communicate with devices belonging to the network formed by the access point 400. When the access point 400 is connected to the Internet, the printing apparatus 300 and the terminal device 200 can also use the Internet via the access point 400.

  In the present embodiment, in order to establish the above-described infrastructure connection, an embodiment will be described in which setting processing (network setting processing) for connecting the printing apparatus 300 and the access point 400 is performed.

  Specifically, for example, there is a method of connecting the printing apparatus 300 and the access point 400 by the terminal apparatus 200 transmitting network setting information to the printing apparatus 300 as a method of network setting processing. Here, the network setting information is, for example, connection information (Service Set Identifier (hereinafter, SSID), a password, and the like) used to connect to the access point 400 which is the connection destination of the printing apparatus 300. The connection information is transmitted from the printing apparatus 300 to the access point 400 when the printing apparatus 300 requests the access point 400 for connection. For example, as a method of network setting processing, there is also a method called Air Station One-Touch Secure System (AOSS), easy wireless start, and Wi-Fi Protected Setup (WPS). These methods are methods of connecting the printing device 300 and the access point 400 by the printing device 300 directly receiving the network setting information from the access point 400 without passing through the terminal device 200, and these methods are automatically It is called a setting method.

  By the way, the wireless connection is a connection performed using a specific frequency band. In recent years, devices capable of using a plurality of frequency bands (for example, 2.4 GHz and 5 GHz) have appeared as the printing device 300. The printing apparatus 300 in this embodiment is also capable of performing wireless connection using a plurality of frequency bands. When connecting with an access point, the printing apparatus 300 first searches for an access point (AP search) using a communication channel corresponding to an available frequency band. Thereafter, the printing apparatus 300 wirelessly connects to the access point by transmitting a connection request to the access point corresponding to the connection information received as described above using the communication channel corresponding to the usable frequency band. .

  Such a printing apparatus 300 can not connect to the access point without knowing which frequency band to use to wirelessly connect to the access point. For example, as a form of the printing apparatus 300, even if it is not known which frequency band should be used, a form in which an AP search is performed using a frequency band that can be used by itself and a connection with an access point is attempted is also conceivable. . However, since the printing apparatus 300 can not generally use a plurality of frequency bands simultaneously, in the above embodiment, the printing apparatus 300 sequentially uses the frequency bands which can be used by itself. In that case, the printing apparatus 300 may try to connect using a frequency band other than the frequency band for connecting to the access point. That is, also in the above-described form, the printing apparatus 300 may take time to connect to the access point or may execute useless processing.

  Because of this, in the network setting process, it is preferable that information (frequency band information) on frequency bands that can be used by the access point to be connected is notified to the printing apparatus 300. The frequency band information is also information on the frequency band used for connection with the access point to be connected.

  However, depending on the network setting process method, the model of the access point to be connected and the type of installed software, and the model of the terminal device 200 that executes the network setting process and the type of installed software, the frequency that the access point to be connected can use Information about the band may not be notified. Specifically, for example, in WPS, whether or not the frequency band information is notified to the printing apparatus 300 depends on the model of the access point side, so that the information is not notified to the printing apparatus 300 is there. Further, for example, depending on the type of OS provided in the terminal device 200, the terminal device 200 may not be able to acquire frequency band information, and thus the information may not be notified to the printing device 300. This causes a problem that the printing apparatus 300 may not be able to specify which frequency band should be used in the network setting process.

  Further, for example, when the access point to be connected corresponds to a plurality of frequencies, a plurality of frequency band information (frequency band information) may be notified. Specifically, for example, both information corresponding to 2.4 GHz and information corresponding to 5 GHz may be notified as frequency band information (frequency band information). Also in this case, there is a problem that the printing apparatus 300 can not specify which frequency band of the plurality of frequency bands should be used in the network setting process.

  Therefore, in the present embodiment, even in the case where the frequency band information is not notified to the printing apparatus 300 in the network setting process, an example will be described in which connection with the access point is attempted using an appropriate frequency band.

  Further, in the present embodiment, even when a plurality of pieces of information on frequency bands that can be used by the access point to be connected are notified to the printing apparatus 300 in the network setting process, an appropriate frequency band is used with the access point The form in which the connection is attempted will be described.

  Specifically, in the above-described case, the printing apparatus 300 tries to connect to the access point by using 2.4 GHz with priority over 5 GHz. In the following, the reason why the printing apparatus 300 tries to connect with the access point using 2.4 GHz prior to 5 GHz in the present embodiment will be described.

  In the present embodiment, the printing apparatus 300 operates simultaneously (in parallel) in a mode for communication by infrastructure connection (infrastructure communication mode) and a mode for communication by direct connection (direct communication mode (P2P mode)). Shall be possible. Therefore, the printing apparatus 300 can establish and maintain the infrastructure connection and the direct connection simultaneously (in parallel).

  The direct connection is a connection in a wireless network established by the printing apparatus 300 or the terminal apparatus 200 as an AP (ie, a master station) and a non-AP apparatus as a client (ie, a slave station). In the present embodiment, it is assumed that a wireless network is constructed with the printing apparatus 300 serving as an AP in direct connection. The direct communication mode includes a WFD (Wi-Fi Direct) mode in which the printing apparatus 300 operates as a GroupOwner, and a soft AP mode in which the printing apparatus 300 operates as a soft AP. In each mode, the SSID and password of the AP to be activated by the printing apparatus 300 are different.

  The infrastructure connection is a connection in a wireless network constructed by the access point 400. The infrastructure connection is a connection in a wireless network established by the access point 400 as an AP (i.e., a master station) and the printing apparatus 300 as a client (i.e., a slave station).

  Further, hereinafter, establishing an infrastructure connection and a direct connection simultaneously (in parallel) and operating simultaneously and concurrently (in parallel) through the infrastructure connection and the direct connection is referred to as a simultaneous operation. In the simultaneous operation, the terminal device 200 to which the printing device 300 is connected by direct connection and the terminal device 200 to which the printing device 300 is connected by infrastructure connection are different from each other. That is, the printing apparatus 300 can be connected to a plurality of apparatuses by simultaneous operation.

  Communication by infrastructure connection and communication by direct connection are performed using a specific frequency band (specific channel). Therefore, in any of the communication by the infrastructure connection and the communication by the direct connection, before communication is started, it is first necessary to determine a channel used for communication and connection between the devices. In the mode in which a plurality of channels are simultaneously assigned to one wireless IC chip for communication, the configuration of each device performing communication and the process executed by each device become complicated. Therefore, for example, when the printing apparatuses 300 operate simultaneously, it is desirable that a common channel be used in communication in each mode. That is, it is desirable that the printing apparatus 300 use only one channel even when operating simultaneously. Therefore, in the present embodiment, the wireless LAN unit 316 has only one wireless IC chip that realizes communication using a predetermined channel, and the printing apparatus 300 does not perform communication using a plurality of channels at the same time.

  If the printing apparatus 300 is operating as a GroupOwner or a soft AP, the channel used for the direct connection can be freely determined by the printing apparatus 300 which is the master station. However, the channel utilized for infrastructure connection is determined by the access point 400 which is the master station in infrastructure connection. Therefore, when simultaneously operating, the printing apparatus 300 preferably determines the channel determined to be used by the access point 400 to be used for infrastructure connection as the channel used for direct connection.

  However, in direct connection using a channel corresponding to 5 GHz, a function called DFS described below is applied. Due to the presence of this function, depending on the device configuration, the printing apparatus 300 cannot execute direct connection using a channel corresponding to 5 GHz, or it is not preferable to execute direct connection using a channel corresponding to 5 GHz. There is. Specifically, for example, the wireless IC chip included in the wireless LAN unit 316 may not be able to operate as a GroupOwner or a soft AP (that is, a parent station) using a channel corresponding to 5 GHz or not preferable. The following describes DFS.

  A device that operates as a Group Owner or a soft AP, or a master station such as an access point, has to execute a technique called DFS (Dynamic Frequency Selection) in communication using a specific frequency band such as 5 GHz. DFS is a technique for controlling communication between devices so as not to affect weather radar and the like. When a specific device such as a weather radar is using a specific frequency, an interference wave is generated by the specific frequency. In some cases, DFS is also a technique for switching the frequency (channel) used by the base unit within a specific frequency band including the specific frequency. Specifically, when the base unit detects an interference wave at a frequency used by the base unit, it first stops communication in the specific frequency band for a predetermined time (for example, one minute). Whether or not the printing apparatus 300 can use a new channel to be used after canceling the communication stop (whether a specific device such as a weather radar is not using a frequency corresponding to the channel) while the communication is stopped. Confirm. When it is confirmed that the channel is available, the base unit cancels the communication stop and restarts communication on the new channel. In addition, in the frequency which a certain parent machine is using for communication, when the said main phone detects an interference wave, a specific device such as a weather radar uses the frequency which the said master is using for communication. It corresponds to the parent machine specifying the presence. A technique called TPC (Transmit Power Control) is also the same technique as DFS.

  When it is detected that a specific device such as a weather radar is using a communication channel in use, it is necessary to execute control to switch the communication channel in use by the master unit in the communication system. is there. The slave side follows this process when the communication channel in use is switched by the master.

  Note that DFS and TPC are applied to communication in a specific frequency band such as 5 GHz and not applied to communication in a frequency band such as 2.4 GHz. That is, the printing apparatus 300 does not switch the channel used for communication in the 2.4 GHz frequency band according to the communication status of a specific apparatus such as a weather radar. This is because a specific device such as a weather radar performs communication using a frequency band of 5.0 GHz but does not perform communication using a frequency band of 2.4 GHz. That is, when communication between devices is performed using a 5 GHz frequency band, channel switching is performed by DFS or TPC. At this time, as described above, when the channel is switched by the DFS, the channel is switched between the channels corresponding to the 5 GHz frequency band.

  When the printing apparatus 300 uses a wireless chip that does not support DFS, when it is a base unit, the communication channel being used cannot be switched by DFS, and direct connection at 5 GHz cannot be performed. Also, as described above, in simultaneous operation, channels used for infrastructure connection and direct connection are shared. The printing apparatus 300 that cannot execute direct connection using 5 GHz has a problem that simultaneous operation cannot be performed if 5 GHz is used in infrastructure connection.

  Further, the printing apparatus 300 uses a wireless chip compatible with DFS, and even if the direct connection at 5 GHz can be performed, the following problems occur. As described above, DFS may change the channel used for direct connection. However, as described above, in simultaneous operation, channels used for infrastructure connection and direct connection are shared, and furthermore, channels used for infrastructure connection can not be determined on the side of printing apparatus 300. That is, even if the channel used for direct connection during simultaneous operation is changed by DFS, the channel used for infrastructure connection cannot be changed on the printing apparatus 300 side, so the channel used for infrastructure connection and direct connection may be shared. become unable. Therefore, there is a problem that the infrastructure connection and the direct connection cannot be maintained in parallel.

  For this reason, even if the printing apparatus 300 can use both 2.4 GHz and 5 GHz frequency bands, it is preferable to use 2.4 GHz with priority given that simultaneous operation is performed.

  Even in the printing apparatus 300 that does not execute the simultaneous operation, the following problems may occur when infrastructure connection is performed using 5 GHz. As described above, when a channel is switched by DFS, communication between apparatuses is stopped for a predetermined time. Therefore, for example, in communication between devices using 5 GHz, delay and packet loss may occur.

  Therefore, when the frequency band information is not notified to the printing apparatus 300 in the network setting process, the printing apparatus 300 according to the present embodiment tries to connect to the access point by using 2.4 GHz in preference to 5 GHz. Also, in the network setting process, when the printer 300 is notified of a plurality of pieces of information on frequency bands that can be used by the access point to be connected, the 2.4 GHz is given priority over 5 GHz to use the access point and the access point. Try to connect.

  On the other hand, there is also a merit of using 5 GHz. For example, in general, communication at 5 GHz has a higher communication speed than communication at 2.4 GHz. Also, in general, communication at 5 GHz is more stable than communication at 2.4 GHz. In addition, although the access point supports 5 GHz, it may not support 2.4 GHz. Therefore, in this embodiment, when only 5 GHz information is notified as frequency band information, or when a user or the like is instructed to use 5 GHz, the printing apparatus 300 uses 5 GHz to communicate with the access point. Try to connect.

  First, network setting processing by the automatic setting method will be described.

  FIG. 5 is a flowchart showing a network setting process by the automatic setting method which the printing apparatus 300 executes in the present embodiment. The flowchart illustrated in FIG. 5 is realized, for example, by the CPU 302 reading out a program stored in the ROM 303, the non-volatile memory 305, or the like to the RAM 304 and executing the program. The process shown in the flowchart of FIG. 5 is started when a user operation (instruction to execute the network setting process) serving as a trigger of the network setting process by the automatic setting method is performed. Specifically, the user operation that triggers the network setting process by the automatic setting method is an operation of pressing a predetermined button of the printing apparatus 300.

  In step S501, the CPU 302 causes the printing apparatus 300 to operate in the automatic setting mode. The automatic setting mode is a mode in which network setting processing is executed by an automatic setting method. When S501 is executed while the printing apparatus 300 is operating in the direct connection mode, the printing apparatus 300 temporarily stops the operation as the AP. In the present embodiment, it is assumed that information regarding the operation mode of the printing apparatus 300 is stored in an operation mode storage area in a predetermined memory. Even when S501 is executed while the printing apparatus 300 is operating in the direct connection mode, information indicating that the direct connection mode is valid is continuously stored in the operation mode storage area. And

  The network setting process by the automatic setting method is executed in a state where not only the printing apparatus 300 but also the access point to be connected to the printing apparatus 300 is operating in the automatic setting mode. Similar to the printing apparatus 300, the access point starts the operation as the automatic setting mode when a predetermined button is pressed by the user.

  When the printing apparatus 300 and the access point start operation in the automatic setting mode, the printing apparatus 300 and the access point issue a signal indicating that the operation is in the automatic setting mode. By acquiring these signals between the devices, each device discovers a device that is a target of network setting processing by the automatic setting method. Then, each device performs connection in order to exchange information (wireless connection profile) for executing network setting processing by the automatic setting method.

  In step S502, the CPU 302 determines whether connection has been made with the access point in the automatic setting mode. If the determination is YES, the CPU 302 proceeds to S503, and if the determination is NO, the CPU 302 proceeds to S504.

  In step S505, the CPU 302 determines whether a predetermined time has elapsed (timed out) after the printing apparatus 300 starts the operation in the automatic setting mode. If the determination is YES, the CPU 302 determines that an error has occurred and ends the process. On the other hand, when the determination is NO, the CPU 302 performs the process of S502 again.

  The access point connected to the printing apparatus 300 operating in the automatic setting mode transmits a wireless connection profile to the printing apparatus 300. The wireless connection profile is information including connection information used for connection with the access point. When the access point has a plurality of SSIDs, the wireless connection profile includes a plurality of profiles corresponding to each SSID. FIG. 4A is an example of a wireless connection profile acquired by AOSS. The wireless connection profile acquired by AOSS includes up to eight profiles. FIG. 4B is an example of the wireless connection profile acquired by the easy wireless start. The wireless connection profile acquired by the easy wireless start includes up to two profiles. FIGS. 4C and 4D show an example of a wireless connection profile acquired by WPS. The wireless connection profile acquired by the WPS includes up to six profiles.

  As shown in FIG. 4, one profile includes “SSID”, “frequency”, “authentication method”, “encryption method”, and “passphrase”. The printing apparatus 300 can be connected to the access point by using each piece of information included in one profile. Specifically, for example, the printing apparatus 300 uses a 2.4 GHz frequency band in order to connect to an access point having the wireless connection profile illustrated in FIG. 4A using the SSID of “AOSS-1”. Use. Note that the information included in the “frequency” is not information indicating a frequency corresponding to each SSID, but may be information indicating a channel corresponding to each SSID, for example. Note that, as described above, the wireless connection profile acquired by WPS may not include information on “frequency” (FIG. 4 (d)), so information on frequency bands usable by the access point is It may not be notified to the printing apparatus 300.

  In step S503, the CPU 302 determines whether a wireless connection profile has been received from the connected access point. If the determination is YES, the CPU 302 proceeds to S504. The wireless connection profile received from the access point includes a plurality of profiles. Therefore, when the CPU 302 receives a wireless connection profile, the CPU 302 identifies the number n of profiles included in the wireless connection profile. If the determination is NO, the CPU 302 proceeds to S506.

  In step S506, the CPU 302 determines whether a predetermined time has elapsed (timed out) after the printing apparatus 300 starts the operation in the automatic setting mode. If the determination is YES, the CPU 302 determines that an error has occurred and ends the process. On the other hand, if the determination is NO, the CPU 302 performs the process of S503 again.

  In S504, the CPU 302 initializes the wireless connection profile counter variable m. Specifically, 1 is assigned to the wireless connection profile counter variable m. The wireless connection profile counter variable m is information stored in the non-volatile memory 305 or the like.

  In S505, the CPU 302 determines whether the m-th profile among the n profiles is a profile indicating that the access point to be connected corresponds to 2.4 GHz. Specifically, the CPU 302 includes information indicating “2.4 GHz” and information indicating “channel corresponding to 2.4 GHz” in the “frequency” region of the m-th profile among the n profiles. It is determined whether or not. When the determination is YES, the CPU 302 proceeds to S508, and when the determination is NO, the CPU 302 proceeds to S511.

  In S511, the CPU 302 determines whether the m-th profile among the n profiles is a profile indicating that the access point to be connected corresponds to 5 GHz. Specifically, the CPU 302 determines whether or not information indicating “5 GHz” or “channel corresponding to 5 GHz” is included in the “frequency” region in the m-th profile among the n profiles. judge. If the determination is YES, the CPU 302 proceeds to S512, and if the determination is NO, the CPU 302 proceeds to S513.

  If S507 is NO and S511 is NO, the m-th profile of the n profiles does not include information on the frequency band. That is, frequency band information is not notified depending on the mth profile among the n profiles. As described above, in this embodiment, 2.4 GHz is preferentially used in such a case.

  Therefore, in S513, the CPU 302 searches for an access point having an SSID corresponding to the m-th profile among the n profiles using a channel corresponding to 2.4 GHz.

  In S514, the CPU 302 determines whether or not an access point having an SSID corresponding to the m-th profile is found among the n profiles in the search in S513. When the determination is YES, the CPU 302 proceeds to S508, and when the determination is NO, the CPU 302 proceeds to S515.

  In S515, the CPU 302 searches for an access point having an SSID corresponding to the m-th profile among the n profiles using a channel corresponding to 5 GHz.

  In S516, the CPU 302 determines whether or not an access point having an SSID corresponding to the m-th profile is found among the n profiles in the search in S515. If the determination is YES, the CPU 302 proceeds to S512. If the determination is NO, the CPU 302 ends the processing as an error has occurred.

  As described above, in the present embodiment, by using the search in S513 (search using 2.4 GHz) earlier than the search in S515 (search using 5 GHz), 2.4 GHz is preferentially used. Is realized.

  In S508, the CPU 302 is the m-th storage area (a storage area for 2.4 GHz) in the storage area of the connection point of the access point connectable by 2.4 GHz, which is a storage area in a predetermined memory such as the non-volatile memory 305. Save your profile.

  In S512, the CPU 302 stores the m-th profile in the storage area (storage area for 5 GHz) of the connection information of the access point which is a storage area in a predetermined memory such as the non-volatile memory 305 and can be connected by 5 GHz. To do.

  In S509, the CPU 302 increments the wireless connection profile counter variable m.

  In S510, the CPU 302 determines whether the incremented wireless connection profile counter variable m exceeds the number n of profiles included in the wireless connection profile. If the determination is YES, the CPU 302 proceeds to S517. If the determination is NO, the CPU 302 proceeds to S507 again. By repeating the process, each of the profiles included in the wireless connection profile is stored in the 2.4 GHz storage area or the 5 GHz storage area.

  The processing after S517 will be described with reference to FIG. The flowchart illustrated in FIG. 6 is realized, for example, by the CPU 302 reading out a program stored in the ROM 303, the non-volatile memory 305, or the like to the RAM 304 and executing the program.

  In S517, the CPU 302 determines whether information is stored in the 2.4 GHz storage area. That is, it is determined whether or not the access point to be connected is an access point that can be connected by 2.4 GHz. If the determination is YES, the CPU 302 proceeds to S518, and if the determination is NO, the CPU 302 proceeds to S523.

  In S518, the CPU 302 tries to connect with the access point to be connected using the information stored in the 2.4 GHz storage area and the channel corresponding to 2.4 GHz. At this time, when a plurality of profiles are stored in the 2.4 GHz storage area, connection is attempted using these in order. Although the order of the profile used at this time is not particularly limited, for example, profiles of an authentication method or an encryption method having a high security level may be used with priority. Specifically, for example, the profile of the authentication method of “WPA2-PSK” may be used in preference to the profile of the authentication method of “OPEN”. Further, specifically, for example, the priority of the encryption method may be set as “AES”> “TKIP”> “WEP 128”> “WEP 64”. In addition, although the CPU 302 tries to connect to the connection target access point by sequentially using a plurality of channels corresponding to 2.4 GHz one by one until the connection succeeds, the order of channels to be used is not particularly limited.

  In S519, the CPU 302 determines in S518 whether the connection with the access point to be connected is successful. If the determination is YES, the CPU 302 proceeds to S520, and if the determination is NO, the CPU 302 proceeds to S523.

  In S520, the CPU 302 stores the profile used for the successful connection in a predetermined memory such as the non-volatile memory 305. At this time, since the 2.4 GHz connection between the printing apparatus 300 and the access point is completed, and the 2.4 GHz infrastructure connection can be established, the CPU 302 operates the printing apparatus 300 in the 2.4 GHz infrastructure connection mode. Let

  In S521, the CPU 302 determines whether or not the operation mode storage area includes information indicating that the direct connection mode is enabled. If the determination is YES, the CPU 302 proceeds to S522, and if the determination is NO, the CPU 302 ends the process.

  In step S522, the CPU 302 causes the printing apparatus 300 to operate in the direct connection mode. At this time, when the printing apparatus 300 is operating in the infrastructure connection mode, the simultaneous operation is performed. As described above, the channel used in the simultaneous operation is the channel used in the infrastructure connection mode. Even if the channel used in the direct connection mode before the network setting process is executed and the channel used in the infrastructure connection mode are different, in the direct connection mode after the network setting process is executed The latter is used.

  When S517 is NO, the profile is included in the 5 GHz storage area. Therefore, in step S523, the CPU 302 attempts connection with the access point to be connected using the information stored in the 5 GHz storage area and the channel corresponding to 5 GHz. At this time, when a plurality of profiles are stored in the storage area for 5 GHz, connection is attempted using these in order. Although the order of the profile used at this time is not particularly limited, for example, profiles of an authentication method or an encryption method having a high security level may be used with priority. In addition, although the CPU 302 tries to connect to the connection target access point by sequentially using a plurality of channels corresponding to 2.4 GHz one by one until the connection succeeds, the order of channels to be used is not particularly limited.

  In S524, the CPU 302 determines in S523 whether or not the connection with the access point to be connected is successful. If the determination is YES, the CPU 302 proceeds to S525, and if the determination is NO, the CPU 302 proceeds to S521.

  In S525, the CPU 302 stores the profile used for the successful connection in a predetermined memory such as the non-volatile memory 305. At this time, since the 5 GHz connection between the printing apparatus 300 and the access point is completed and the 5 GHz infrastructure connection can be established, the CPU 302 operates the printing apparatus 300 in the 5 GHz infrastructure connection mode.

  In step S526, the CPU 302 determines whether the operation mode storage area includes information indicating that the direct connection mode is enabled. If the determination is YES, the CPU 302 proceeds to S527. If the determination is NO, the CPU 302 ends the processing.

  In S522, the CPU 302 invalidates the direct connection mode. That is, the information included in the operation mode storage area is rewritten to information indicating that the direct connection mode is invalid. This is because, as mentioned above, simultaneous operation using 5 GHz causes several problems. At this time, the CPU 302 may display on the display unit 311 a screen for notifying the user that the direct connection mode is to be invalidated.

  The printing apparatus 300 can operate in the direct connection mode by directly receiving a predetermined operation from the user via the operation unit 309. However, in the present embodiment, the printing apparatus 300 does not operate in the direct connection mode (that is, does not perform simultaneous operation) when operating in the infrastructure connection mode of 5 GHz. Therefore, when the predetermined operation is accepted while the printing apparatus 300 is operating in the 5 GHz infrastructure connection mode, the CPU 302 displays a screen for confirming whether the infrastructure connection mode may be canceled. It may be displayed on the part 311. Then, when it is confirmed by the user operation that the infrastructure connection mode may be canceled, the CPU 302 cancels the infrastructure connection mode of 5 GHz and operates the printing apparatus 300 in the direct connection mode. Note that releasing the 5 GHz infrastructure connection mode is equivalent to disconnecting the 5 GHz connection with the access point. Further, instead of such a form, for example, when operating in the infrastructure connection mode at 5 GHz, a configuration may be adopted in which a predetermined operation for operating the printing apparatus 300 in the direct connection mode is not received.

  Next, network setting processing using the terminal device 200 will be described.

  FIG. 7 is a flowchart showing a network setting process using the terminal device 200 executed by the printing apparatus 300 in the present embodiment. The flowchart illustrated in FIG. 7 is realized, for example, by the CPU 302 reading out a program stored in the ROM 303, the non-volatile memory 305, or the like to the RAM 304 and executing the program. The process illustrated in the flowchart illustrated in FIG. 7 is started when a user operation (instruction to execute the network setting process) serving as a trigger for the network setting process using the terminal device 200 is performed on the printing apparatus 300. The

  In step S701, the CPU 302 operates the printing apparatus 300 in a predetermined mode called a setup mode based on the user operation that triggers the network setting process. The setup mode is a mode for the printing apparatus 300 to accept network setting processing. When S701 is performed in a state where the printing apparatus 300 is operating in the direct connection mode, the printing apparatus 300 temporarily suspends the operation as the AP. Then, while the printing apparatus 300 is operating in the direct connection mode, even if S701 is executed, information indicating that the direct connection mode is valid is continuously stored in the operation mode storage area. In addition, with the user operation that triggers the network setting process, for example, an operation on a predetermined screen for operating the printing apparatus 300 in the setup mode or changing the printing apparatus 300 in the initial setting state from the power off state to the power on state This is a transition operation. The initial setting state is a state in which the printing apparatus 300 has never executed the network setting process.

  In S702, the CPU 302 executes an AP search, which is a process for searching for access points present around the printing apparatus 300, using a channel corresponding to 2.4 GHz. Thereby, an access point connectable by 2.4 GHz is searched.

  In S703, the CPU 302 executes the AP search using a channel corresponding to 5 GHz. Thereby, an access point connectable by 5 GHz is searched.

  In S704, the CPU 302 stores the result of the AP search in S702 and S703 in a memory such as the RAM 304. The result of the AP search is, for example, a list of access points found by the AP search, connection information for connecting to the access point, information of the frequency or channel used for searching for the access point, and the like. Thus, the CPU 302 can specify which access point has been found using which frequency or channel. That is, the CPU 302 can identify the frequencies and channels available to the access point found by the AP search.

  In step S705, the CPU 302 validates a predetermined access point in the printing apparatus 300 that is valid only in the setup mode. The predetermined access point has an SSID including a predetermined character string.

  The network setting process using the terminal device 200 is executed by the terminal device 200 using a setup program, which is a program for executing the network setting process. The terminal device 200 searches the predetermined access point when a user operation (instruction to execute the network setting process) serving as a trigger for the network setting process is performed on the screen displayed by the setup program. Then, when the terminal device 200 finds the predetermined access point, the terminal device 200 directly connects the printing device 300 with the printing device 300 via the predetermined access point using the connection information stored in advance in the setup program. .

  In S705, the CPU 302 determines whether the printing apparatus 300 has made a direct connection with the terminal apparatus 200 via the predetermined access point. When the determination is YES, the CPU 302 proceeds to S707, and when the determination is NO, the CPU 302 proceeds to S708.

  In step S708, the CPU 302 determines whether a predetermined time has elapsed (timed out) after the printing apparatus 300 starts the operation in the setup mode. If the determination is YES, the CPU 302 determines that an error has occurred and ends the process. On the other hand, if the determination is NO, the CPU 302 performs the process of S706 again.

  In step S <b> 707, the CPU 302 transmits the AP search result to the terminal device 200.

In S709, the CPU 302 determines whether network setting information has been received from the terminal device 200. The network setting information transmitted from the terminal device 200 may be information for connecting to the access point included in the AP search result transmitted by the printing device 300. Moreover, the information for connecting with the access point contained in the AP search result which the terminal device 200 performed may be sufficient. Alternatively, the information may be information for connecting to an access point specified by the user via the terminal device 200. In the present embodiment, the network setting information transmitted from the terminal device 200 includes information indicating a channel used by the access point to be connected as frequency band information. The CPU 302 can specify whether the channel corresponds to the 2.4 GHz frequency band or the 5 GHz frequency band by referring to the information on the channel.
Further, the printing apparatus 300 may receive the network setting information in a plurality of times instead of collectively. When the determination is YES, the CPU 302 proceeds to S711, and when the determination is NO, the CPU 302 proceeds to S710.

  In step S710, the CPU 302 determines whether a predetermined time has elapsed (timed out) after the printing apparatus 300 starts the operation in the setup mode. If the determination is YES, the CPU 302 determines that an error has occurred and ends the process. On the other hand, if the determination is NO, the CPU 302 performs the process of S709 again.

  In step S711, the CPU 302 invalidates a predetermined access point in the printing apparatus 300 that is valid only in the setup mode. That is, the CPU 302 once disconnects from the terminal device 200.

  In S712, the CPU 302 determines whether the network setting information received from the terminal device 200 includes information indicating that the frequency used by the access point to be connected is 2.4 GHz. When the determination is YES, the CPU 302 proceeds to S713, and when the determination is NO, the CPU 302 proceeds to S714.

  In step S713, the CPU 302 stores the network setting information received from the terminal device 200 in the 2.4 GHz storage area.

  In S <b> 714, the CPU 302 determines whether or not the network setting information received from the terminal device 200 includes information indicating that the frequency used by the connection target access point is 5 GHz. If the determination is YES, the CPU 302 proceeds to S715, and if the determination is NO, the CPU 302 proceeds to S716.

  In S715, the CPU 302 saves the network setting information received from the terminal device 200 in the 5 GHz storage area.

  When S712 is NO determination and S714 is NO determination, the network setting information received from the terminal device 200 does not include information regarding the frequency used by the access point to be connected. As described above, in this embodiment, 2.4 GHz is preferentially used in such a case, so in S716, the CPU 302 specifies that the frequency used by the access point to be connected is 2.4 GHz. .

  The processes after S717 will be described with reference to FIG. The flowchart shown in FIG. 8 is realized, for example, when the CPU 302 reads a program stored in the ROM 303, the nonvolatile memory 305, or the like into the RAM 304 and executes it.

  At S717, the CPU 302 determines whether or not network setting information is stored in the 2.4 GHz storage area. That is, it is determined whether or not the access point to be connected is an access point that can be connected by 2.4 GHz. If the determination is YES, the CPU 302 proceeds to S718, and if the determination is NO, the CPU 302 proceeds to S724.

  In S718, the CPU 302 stores the network setting information stored in the 2.4 GHz storage area in a predetermined memory such as the nonvolatile memory 305.

  In step S719, the CPU 302 attempts connection with the access point to be connected using the network setting information stored in the 2.4 GHz storage area and a channel corresponding to 2.4 GHz. In the present embodiment, as described above, since the frequency band information is information indicating a channel, among the channels corresponding to 2.4 GHz, connection with an access point to be connected is performed using a channel indicated by the information. Try.

  In S720, the CPU 302 determines in S719 whether or not the connection with the connection target access point is successful. If the determination is YES, the CPU 302 proceeds to S721, and if the determination is NO, the CPU 302 proceeds to S722. If the connection with the access point to be connected is successful, the 2.4 GHz connection between the printing apparatus 300 and the access point is completed, and the infrastructure connection with 2.4 GHz can be established. Therefore, the CPU 302 causes the printing apparatus 300 to operate in the 2.4 GHz infrastructure connection mode.

  In S722, the CPU 302 displays on the display unit 311 a screen indicating that the connection with the connection target access point has failed. At this time, the CPU 302 may transmit, to the terminal device 200, information for displaying on the display unit 209 a screen indicating that the connection with the access point to be connected has failed. Further, the CPU 302 may advance to S 725 and try to connect with the access point to be connected using a channel corresponding to 5 GHz. In addition, the CPU 302 may try to connect with the access point to be connected using a channel other than the channel used in S719 among the channels corresponding to 2.4 GHz.

  In S721, the CPU 302 determines whether or not the operation mode storage area includes information indicating that the direct connection mode is valid. When the determination is YES, the CPU 302 proceeds to S723, and when the determination is NO, the process ends.

  In step S723, the CPU 302 operates the printing apparatus 300 in the direct connection mode. This process is the same as S522.

  If S717 is NO, the network setting information is included in the 5 GHz storage area. Therefore, in S724, the CPU 302 stores the network setting information stored in the storage area for 5 GHz in a predetermined memory such as the nonvolatile memory 305.

  In S725, the CPU 302 tries to connect to the access point to be connected using the network setting information stored in the 5 GHz storage area and the channel corresponding to 5 GHz. In this embodiment, as described above, since the frequency band information is information indicating a channel, a connection with an access point to be connected is attempted using the channel indicated by the information among the channels corresponding to 5 GHz.

  In S726, the CPU 302 determines whether or not the connection with the access point to be connected is successful in S725. If the determination is YES, the CPU 302 proceeds to S727, and if the determination is NO, the CPU 302 proceeds to S728. If the connection with the access point to be connected is successful, the 5 GHz connection between the printing apparatus 300 and the access point is completed, and an infrastructure connection with 5 GHz can be established. Therefore, the CPU 302 operates the printing apparatus 300 in an infrastructure connection mode at 5 GHz.

  In S728, the CPU 302 causes the display unit 311 to display a screen indicating that the connection with the connection target access point has failed. At this time, information for displaying on the display unit 209 a screen indicating that the connection with the access point to be connected has failed may be transmitted to the terminal device 200. Further, the CPU 302 may proceed to S719 and try to connect to the access point to be connected using a channel corresponding to 2.4 GHz. Further, the CPU 302 may try to connect to the access point to be connected using a channel that is not the channel used in S728 among the channels corresponding to 5 GHz.

  In S727, the CPU 302 determines whether or not the operation mode storage area includes information indicating that the direct connection mode is valid. When the determination is YES, the CPU 302 proceeds to S729, and when the determination is NO, the process ends.

  In S729, the CPU 302 invalidates the direct connection mode. This process is the same as S522.

  Next, a mode in which network setting processing via the terminal device 200 is appropriately executed by a method different from the above mode will be described.

  FIG. 9 is a flowchart showing a network setting process performed by the printing apparatus 300 in the present embodiment. The flowchart shown in FIG. 9 is realized, for example, when the CPU 302 reads a program stored in the ROM 303, the nonvolatile memory 305, or the like into the RAM 304 and executes it. Further, the process illustrated in the flowchart illustrated in FIG. 9 is started when a user operation (instruction for executing the network setting process) that triggers the network setting process is performed on the printing apparatus 300.

  Since S901 to S916 are the same as S701 to S716, the description will be omitted.

  When the determination in S 914 is NO, the network setting information received from the terminal device 200 does not include frequency band information. Therefore, the CPU 302 determines whether the AP search result stored in S904 includes the information included in the network setting information received from the terminal device 200. The information included in the network setting information received from the terminal device 200 is, for example, an SSID, an authentication method, an encryption method, a MAC address, and the like. When the determination is YES, the CPU 302 proceeds to S918, and when the determination is NO, the CPU 302 proceeds to S916. When the determination is YES, the CPU 302 identifies frequency information corresponding to the information included in the network setting information received from the terminal device 200 from the AP search result.

  In S918, the CPU 302 determines whether the frequency information corresponding to the information included in the network setting information received from the terminal device 200 and specified from the AP search result is 2.4 GHz. If the determination is YES, the CPU 302 proceeds to S913, and if the determination is NO, the CPU 302 proceeds to S915.

  The processing after S913 and S915 is the same as the processing shown in FIG.

  Although the above describes the mode in which the network setting information for setting the infrastructure connection mode is received from the terminal device 200, the network setting information for setting the direct connection mode may be received. In that case, the printing apparatus 300 notifies the terminal device 200 of connection information for connection with the access point in the printing apparatus 300 that is activated in the direct connection mode, and then activates the access point. Connect directly.

  In addition, it is preferable that the terminal device 200 transmit, as network setting information for setting the infrastructure connection mode, information for connecting to an access point to which the terminal device 200 was connected before the network setting process. Accordingly, since the printing apparatus 300 is connected to the access point, if the terminal apparatus 200 is reconnected to the access point, an infrastructure connection is established between the terminal apparatus 200 and the printing apparatus 300.

  With the above configuration, in the network setting process, when the frequency band information is not notified to the printing apparatus 300, the connection with the access point is attempted by using 2.4 GHz with priority over 5 GHz. Can do. Also, in the network setting process, when the printer 300 is notified of a plurality of pieces of information on frequency bands that can be used by the access point to be connected, the 2.4 GHz is given priority over 5 GHz to use the access point and the access point. Can try to connect.

(Other embodiments)
In the above description, the printing apparatus 300 corresponds to at least one of the frequency bands of 2.4 GHz and 5 GHz, but is not limited to this form. That is, the frequency band to which the printing apparatus 300 is compatible may be a frequency band other than 2.4 GHz and 5 GHz. The printing apparatus 300 may support three or more frequency bands.

  In the above description, when the frequency band information is not received in the network setting process or when a plurality of frequency band information is received, the printing apparatus 300 preferentially uses a channel corresponding to the 2.4 GHz frequency band and the AP. I was connected. However, it is not limited to this form. For example, in the above-described case, the printing apparatus 300 preferentially selects a channel that is not switched by DFS (a channel that is not used by a specific device such as a weather radar) among channels corresponding to the frequency band of 5 GHz. You may use and connect with AP.

  In the above, in the network setting process using the terminal device 200, in the state where the printing device 300 is operating in the setup mode and the printing device 300 and the terminal device 200 are connected by Wi-Fi, the network setting information The form of receiving has been described. However, the present invention is not limited to this form. For example, in a state where the printing apparatus 300 and the terminal apparatus 200 are connected by a communication method other than Wi-Fi, the setting information is received via the communication method other than Wi-Fi. It may be. That is, for example, in response to the operation serving as a trigger of the operation in the setup mode being performed, the printing apparatus 300 starts the operation in a state in which communication with the host terminal 102 is possible by a communication method other than WLAN. Also good. A communication method other than WLAN is, for example, Bluetooth Classic (registered trademark), Bluetooth Low Energy (registered trademark), or NFC.

  The embodiment described above is also realized by performing the following processing. That is, software (program) for realizing the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (CPU, MPU, etc.) of the system or apparatus reads and executes the program. It is processing to do. Also, the program may be executed by one computer or may be linked and executed by a plurality of computers. Also, it is not necessary to implement all of the above processing by software, and part or all of the processing may be realized by hardware such as an ASIC. Also, the CPU is not limited to the one performing all the processing with one CPU, and a plurality of CPUs may perform the processing while appropriately coordinating.

200 Terminal device 300 Printing device

Claims (42)

A printing apparatus capable of performing wireless communication in a 2.4 GHz frequency band and a 5 GHz frequency band,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band A connection means for wirelessly connecting to the external device using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device;
Printing means for performing printing based on the print job;
Have
The setting information includes neither the frequency band information corresponding to the 2.4 GHz frequency band nor the frequency band information corresponding to the 5 GHz frequency band, and the external device according to the 2.4 GHz frequency band And a wireless connection with the external device using the 5 GHz frequency band. Wireless connection which can execute wireless communication in a frequency band of 2.4 GHz and a frequency band of 5 GHz and which does not determine a communication channel to be used; wireless connection which is a master station which determines a communication channel to be used; A printer capable of maintaining the
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band And a connection means for establishing a wireless connection with the slave station by using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device;
Printing means for performing printing based on the print job;
When the printing apparatus maintains the wireless connection of the printing apparatus to the slave station using the external apparatus and the frequency band of 5 GHz, the wireless connection of the printing apparatus to the former master station can not be established. Control means for controlling
A printing apparatus comprising: Wireless communication in a 2.4 GHz frequency band and a 5 GHz frequency band can be performed, and the first wireless connection via the external device with the first information processing device and the external to the second information processing device A printing device capable of maintaining in parallel a direct second wireless connection not via the device,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band Connection means for wirelessly connecting to the external device by preferentially using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device;
Printing means for performing printing based on the print job;
Control means for controlling the second wireless connection not to be established when the first wireless connection is established using the 5 GHz frequency band;
A printing apparatus comprising: A printing apparatus capable of performing wireless communication in a 2.4 GHz frequency band and a 5 GHz frequency band,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band A connection means for wirelessly connecting to the external device using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device;
Printing means for performing printing based on the print job;
Have
When the setting information includes any one of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the frequency included in the setting information A printing apparatus wirelessly connected to the external apparatus by a frequency band based on band information.   In the wireless connection with the external device, the external device is a master station that determines a communication channel to be used in the wireless connection with the external device, and the communication that the printing device uses in the wireless connection with the external device. The printing apparatus according to claim 1, wherein the printing apparatus is a slave station that does not determine a channel.   The method further comprises: a first specifying step of specifying a communication channel used by the printing apparatus as a wireless connection as the slave station as a communication channel used by the printing apparatus as a wireless connection as the master station. Item 3. The printing apparatus according to Item 2.   The printing apparatus further includes a second specifying step that specifies a communication channel used in the first wireless connection as a communication channel used in the second wireless connection. Item 4. A printing apparatus according to item 3.   When one of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band is included in the setting information, the frequency included in the setting information The printing apparatus according to any one of claims 1 to 3, wherein the printing apparatus is wirelessly connected to the external apparatus by a frequency band based on band information.   When the setting information includes the frequency band information corresponding to the frequency band of 2.4 GHz and the frequency band information corresponding to the frequency band of 5 GHz, the 2.4 GHz of the frequency band of 5 GHz. 4. The printing apparatus according to claim 2, wherein a wireless connection is established with the external apparatus using a frequency band preferentially.   When the setting information does not include both frequency band information corresponding to the 2.4 GHz frequency band and frequency band information corresponding to the 5 GHz frequency band, the external device in the 2.4 GHz frequency band When the external device is not found as a result of searching the external device in the 2.4 GHz frequency band, the setting information is searched by searching the external device with the frequency of 5 GHz. When neither the frequency band information corresponding to the 2.4 GHz frequency band nor the frequency band information corresponding to the 5 GHz frequency band is included, the 2.4 GHz frequency band is prioritized over the 5 GHz frequency band. The printing apparatus according to claim 1, wherein the printing apparatus is wirelessly connected to the external apparatus.   11. The printing apparatus according to claim 1, wherein the setting information is directly received from the external apparatus without using an apparatus other than the external apparatus.   The printing apparatus according to claim 11, wherein the setting information is received by any one of an air station one-touch secure system, an easy radio start, and a Wi-Fi protected setup.   The printing apparatus according to any one of claims 1 to 12, wherein the setting information is received from an apparatus other than the external apparatus.   When wirelessly connected to the external device using the 5 GHz frequency band, it is used in the wireless connection using the 5 GHz frequency band between the external device and the printing device through Dynamic Frequency Selection or Transmit Power Control. The printing apparatus according to claim 1, wherein the channel is changed to another channel.   The setting information includes connection information for wireless connection with the external device, information about an authentication method used for wireless connection with the external device, and information about an encryption method used for wireless connection with the external device. The printing apparatus according to any one of claims 1 to 14, comprising at least one.   The printing apparatus according to claim 1, wherein the frequency band information is information relating to a communication channel used for wireless connection with the external apparatus.   17. A printing apparatus according to any one of claims 1 to 16, further comprising printing means for printing on a recording medium by means of ink.   When the setting information includes frequency band information corresponding to the 2.4 GHz frequency band and a plurality of profile information corresponding to the 2.4 GHz frequency band, the security level is higher among the plurality of profile information. 18. A wireless connection with the external apparatus is established by preferentially using a higher authentication method profile or a higher security level encryption method profile. The printing apparatus as described in. A printing apparatus capable of performing wireless communication in a first frequency band and a second frequency band, comprising:
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
When the setting information does not include any of frequency band information corresponding to the first frequency band and frequency band information corresponding to the second frequency band, the first frequency band information may be transmitted from the second frequency band. Connection means for wirelessly connecting to the external device by preferentially using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device, printing means for executing printing based on the print job,
Have
The setting information includes neither frequency band information corresponding to the first frequency band nor frequency band information corresponding to the second frequency band, and the external device When wireless connection can not be made, wireless connection is made with the external device by the second frequency band,
When wirelessly connected to the external device using the second frequency band, it is used in the wireless connection using the second frequency band between the external device and the printing device by Dynamic Frequency Selection or Transmit Power Control. A printing apparatus characterized in that a channel being changed can be changed to another channel. A wireless connection capable of performing wireless communication in the first frequency band and the second frequency band and serving as a slave station that does not determine a communication channel to be used; a wireless connection serving as a parent station that determines a communication channel to be used; A printer capable of maintaining the
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
When the setting information does not include any of frequency band information corresponding to the first frequency band and frequency band information corresponding to the second frequency band, the first frequency band information may be transmitted from the second frequency band. And a connection means for establishing a wireless connection with the slave station by using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device, printing means for executing printing based on the print job,
In a state where the printing apparatus maintains a wireless connection with the printing apparatus to the slave station using the second frequency band with the external apparatus, a wireless connection with the printing apparatus to the previous master station is established. Control means for controlling so as not to be
Have
When wireless connection is made with the external device by the second frequency band, it is used in wireless connection by the second frequency band between the external device and the printing device by Dynamic Frequency Selection or Transmit Power Control. A printing apparatus characterized in that the channel being switched can be changed to another channel. The wireless communication in the first frequency band and the second frequency band can be performed, the first wireless connection via the external device with the first information processing device, and the external to the second information processing device A printing device capable of maintaining in parallel a direct second wireless connection not via the device,
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
When the setting information does not include any of frequency band information corresponding to the first frequency band and frequency band information corresponding to the second frequency band, the first frequency band information may be transmitted from the second frequency band. Connection means for wirelessly connecting to the external device by preferentially using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device, printing means for executing printing based on the print job,
Control means for controlling so that the second wireless connection is not established when the first wireless connection is established using the second frequency band;
Have
When wireless connection is made with the external device by the second frequency band, it is used in wireless connection by the second frequency band between the external device and the printing device by Dynamic Frequency Selection or Transmit Power Control. A printing apparatus characterized in that the channel being switched can be changed to another channel. A printing apparatus capable of performing wireless communication in a first frequency band and a second frequency band, comprising:
Setting receiving means for receiving setting information used in processing for wireless connection with an external device;
When the setting information does not include any of frequency band information corresponding to the first frequency band and frequency band information corresponding to the second frequency band, the first frequency band information may be transmitted from the second frequency band. Connection means for wirelessly connecting to the external device by preferentially using the frequency band of
Job receiving means for receiving a print job via a wireless connection with the external device, printing means for executing printing based on the print job,
Have
When any one of the frequency band information corresponding to the first frequency band and the frequency band information corresponding to the second frequency band is included in the setting information, the frequency included in the setting information Wireless connection with the external device by a frequency band based on band information;
When wirelessly connected to the external device using the second frequency band, it is used in the wireless connection using the second frequency band between the external device and the printing device by Dynamic Frequency Selection or Transmit Power Control. A printing apparatus characterized in that a channel being changed can be changed to another channel.   In the wireless connection with the external device, the external device is a master station that determines a communication channel to be used in the wireless connection with the external device, and the communication that the printing device uses in the wireless connection with the external device. 23. The printing apparatus according to claim 19, wherein the printing apparatus is a slave station that does not determine a channel.   The method further comprises: a first specifying step of specifying a communication channel used by the printing apparatus as a wireless connection as the slave station as a communication channel used by the printing apparatus as a wireless connection as the master station. Item 21. The printing apparatus according to Item 20.   The printing apparatus further includes a second specifying step that specifies a communication channel used in the first wireless connection as a communication channel used in the second wireless connection. Item 22. The printing device according to Item 21.   When any one of the frequency band information corresponding to the first frequency band and the frequency band information corresponding to the second frequency band is included in the setting information, the frequency included in the setting information The printing apparatus according to any one of claims 19 to 21, wherein the printing apparatus is wirelessly connected to the external apparatus by a frequency band based on band information.   When the setting information includes the frequency band information corresponding to the first frequency band and the frequency band information corresponding to the second frequency band, the first frequency band may include the first frequency band information. The printing apparatus according to claim 20 or 21, wherein a wireless connection is established with the external apparatus using a frequency band preferentially. If the setting information does not include any of frequency band information corresponding to the first frequency band and frequency band information corresponding to the second frequency band, the external device is selected in the first frequency band. When the external device is not found as a result of searching and searching for the external device in the first frequency band, the setting information is searched by searching for the external device in the second frequency band . If neither the frequency band information corresponding to the first frequency band nor the frequency band information corresponding to the second frequency band is included, the first frequency band is prioritized over the second frequency band. The printing apparatus according to any one of claims 19 to 27, wherein the printing apparatus is wirelessly connected to the external apparatus.   The printing apparatus according to any one of claims 19 to 28, wherein the setting information is received directly from the external apparatus without going through an apparatus other than the external apparatus.   30. The printing apparatus according to claim 29, wherein the setting information is received by a setting method of any one of an Air Station One-Touch Secure System, an easy wireless start, and a Wi-Fi Protected Setup.   The printing apparatus according to any one of claims 19 to 30, wherein the setting information is received from a device other than the external device.   The printing apparatus according to any one of claims 19 to 31, wherein the first frequency band is a frequency band of 2.4 GHz.   The printing apparatus according to any one of claims 19 to 31, wherein the second frequency band is a 5 GHz frequency band.   The setting information includes connection information for wireless connection with the external device, information about an authentication method used for wireless connection with the external device, and information about an encryption method used for wireless connection with the external device. 34. A printing device according to any of claims 19 to 33, comprising at least one.   35. The printing apparatus according to claim 19, wherein the frequency band information is information regarding a communication channel used for wireless connection with the external apparatus.   36. A printing apparatus according to any one of claims 19 to 35, further comprising printing means for printing on a recording medium by means of ink.   When the setting information includes frequency band information corresponding to the first frequency band and a plurality of profile information corresponding to the first frequency band, the security level is higher among the plurality of profile information. 37. The wireless connection with the external device is established by preferentially using an authentication method profile or an encryption method profile having a higher security level. Printing device. A control method of a printing apparatus capable of executing wireless communication in a 2.4 GHz frequency band and a 5 GHz frequency band,
A setting reception step of receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band A connection step of wirelessly connecting to the external device by preferentially using the frequency band of
A job receiving step of receiving a print job via a wireless connection with the external device;
A printing step of executing printing based on the print job;
Have
The setting information includes neither the frequency band information corresponding to the 2.4 GHz frequency band nor the frequency band information corresponding to the 5 GHz frequency band, and the external device according to the 2.4 GHz frequency band And a wireless connection with the external device using the 5 GHz frequency band when the wireless connection is impossible. Wireless connection which can execute wireless communication in a frequency band of 2.4 GHz and a frequency band of 5 GHz and which does not determine a communication channel to be used; wireless connection which is a master station which determines a communication channel to be used; A control method of a printing apparatus capable of maintaining the
A setting reception step for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band Establishing a wireless connection between the external device and the slave station by preferentially using the frequency band of
A job receiving step of receiving a print job via a wireless connection with the external device;
A printing step of executing printing based on the print job;
When the printing apparatus maintains the wireless connection of the printing apparatus to the slave station using the external apparatus and the frequency band of 5 GHz, the wireless connection of the printing apparatus to the former master station can not be established. Control steps to control,
A control method characterized by comprising: The wireless communication in the frequency band of 2.4 GHz and the frequency band of 5 GHz can be performed, and the first wireless connection via the external device with the first information processing device and the external of the second information processing device A method for controlling a printing apparatus capable of maintaining a second direct wireless connection not via the apparatus in parallel,
A setting reception step for receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band A connection step of wirelessly connecting to the external device using the frequency band of
A job receiving step of receiving a print job via a wireless connection with the external device;
A printing step of executing printing based on the print job;
A control step of controlling so that the second wireless connection is not established when the first wireless connection is established using the 5 GHz frequency band;
A control method characterized by comprising: A printing apparatus capable of performing wireless communication in a 2.4 GHz frequency band and a 5 GHz frequency band,
A setting reception step of receiving setting information used in processing for wireless connection with an external device;
If the setting information does not include any of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band, the 2.4 GHz frequency band from the 5 GHz frequency band A connection step of wirelessly connecting to the external device using the frequency band of
A job receiving step of receiving a print job via a wireless connection with the external device;
A printing step of executing printing based on the print job;
Have
When one of the frequency band information corresponding to the 2.4 GHz frequency band and the frequency band information corresponding to the 5 GHz frequency band is included in the setting information, the frequency included in the setting information A control method comprising wireless connection with the external device by a frequency band based on band information.   A program that causes a computer to function as each unit of the printing apparatus according to any one of claims 1 to 37.

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