JP2022031284A - Program and portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program of portable terminal capable of discovering an image processing system appropriately in a communication network.

SOLUTION: A terminal program makes a portable terminal execute first retrieval processing (S13) for retrieving an image processing system by first method, second retrieval processing (S23) for retrieving the image processing system by second method different from the first method, in response to determination that the image processing system was not detected by the first retrieval processing (S14:No), first storage processing (S17) for storing device information identifying the image processing system, detected by first or second retrieval processing, as specific device information, and operation instruction processing (S18) for instructing the image processing system, identified by the specific device information, to execute image processing operation. One of the first and second methods is retrieval of the image processing system by broadcast, and the other is retrieval of the image processing system by unicast.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a program of a mobile terminal that causes an image processing device to execute an image processing operation.

For example, Patent Document 1 discloses a terminal program of a portable terminal that causes an image processing device capable of communicating through a communication network to perform an image processing operation. More specifically, the terminal program of Patent Document 1 causes an image processing device designated by the user to execute an image processing operation designated by the user. The image processing operation is, for example, a printing operation for recording an image on a sheet, a scanning operation for reading an image recorded on a document, and the like.

The terminal program described in Patent Document 1 broadcasts transmission request information requesting transmission of device information to a communication network, and selects a desired image processing device from among image processing devices that transmit device information as a response to the transmission request information. Let the user specify. This makes it possible for the user to specify a desired image processing device from among the image processing devices capable of communicating.

Japanese Unexamined Patent Publication No. 2017-02726

However, since the broadcast transmission request information cannot cross the router, it is not possible to specify an image processing device to which a different network address is assigned. Further, when the traffic of the communication network is heavy, the broadcast transmission request information may not reach the image processing device, or the returned device information may not reach the mobile terminal. As described above, if only one method for searching the image processing device is implemented, there is a possibility that the image processing device cannot be found.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a program of a mobile terminal capable of appropriately discovering an image processing device in a communication network.

Various disclosures are made herein. The program, which is one of the disclosure examples, can be executed by a mobile terminal including a communication interface, an input interface, and a memory. The program has a first search process for searching for an image processing device capable of performing an image processing operation in a communication network to which the communication interface is connected by a first method, and the image processing device in the first search process. Depending on the first determination process for determining whether or not the image processing device was detected and the determination that the image processing device was not detected in the first determination process, the image processing device is used in a second method different from the first method. The second search process for searching the image, the first storage process for storing the device information for identifying the image processing device detected in the first search process or the second search process in the memory as designated device information, and the above. The image processing device identified by the designated device information stored in the memory is made to execute the operation instruction processing for transmitting the operation instruction information instructing the execution of the image processing operation through the communication interface to the mobile terminal. The program has, in one of the first search process and the second search process, a first transmission process of broadcasting transmission request information requesting transmission of the device information to the communication network through the communication interface, and the first transmission process. As a response to the transmission request information transmitted in the transmission process, the mobile terminal is made to execute a first reception process of receiving the device information from the image processing device through the communication interface. In the other of the first search process and the second search process, the program receives a user operation for inputting address information for identifying the image processing device in the communication network as a first reception process through the input interface. The second transmission process of unicasting the transmission request information through the communication interface and the second transmission process of unicasting the transmission request information to the image processing device identified by the address information that received the input in the first reception process. As a response to the transmission request information, the mobile terminal is made to execute a second reception process of receiving the device information from the image processing device through the communication interface. In the first determination process, the program determines whether or not the device information is received before the first time elapses after the transmission request information is transmitted in the first search process.

According to the above configuration, when the image processing device cannot be detected by the first method, the image processing device is searched by a second method different from the first method, so that the image processing device connected to the communication network can be detected. The possibility increases.

As an example, when the image processing device cannot be detected by broadcasting the transmission request information, the transmission request information is unicast to the image processing device identified by the address information specified by the user. This increases the possibility that the desired image processing device can be appropriately detected even when the image processing device to which a different network address is assigned is specified or the traffic of the communication network is heavy. As another example, if the image processing device identified by the address information specified by the user cannot be detected, the transmission request information is broadcast to the communication network. This increases the possibility that the image processing device can be appropriately detected even if the address information is erroneously input.

Note that "broadcast" means that a relay device (for example, a switch, a router, etc.) transmits transmission request information sent to a communication network by a mobile terminal terminal by designating a broadcast address to all devices in the communication network. It may be pointed out that the mobile terminal sequentially unicasts the transmission request information to all the devices in the communication network.

FIG. 1 is a schematic diagram of a system 100 according to the present embodiment. FIG. 2A is a block diagram of the MFP 10, and FIG. 2B is a block diagram of the mobile terminal 50. FIG. 3 is an example of a history list stored in the memory 62. FIG. 4 is a flowchart of the main process. FIG. 5 is a flowchart of the alternative search process A. FIG. 6 is a flowchart of the alternative search process B. 7A and 7B are display examples of the display 53, in which FIG. 7A shows a main screen and FIG. 7B shows a device selection screen. 8A and 8B are display examples of the display 53, in which FIG. 8A shows a switching confirmation screen and FIG. 8B shows a history selection screen. 9A and 9B are display examples of the display 53, in which FIG. 9A shows a guide screen and FIG. 9B shows an address input screen. 10A and 10B are display examples of the display 53, in which FIG. 10A shows an error screen and FIG. 10B shows a selection confirmation screen. FIG. 11 is a flowchart of the main process according to the modified example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings as appropriate. It is needless to say that the embodiments described below are merely examples of the present invention, and the embodiments of the present invention can be appropriately changed without changing the gist of the present invention. For example, the execution order of each process described later can be appropriately changed without changing the gist of the present invention.

FIG. 1 is a schematic diagram of a system 100 according to the present embodiment. The system 100 shown in FIG. 1 includes MFPs 10A, 10B, 10C, and 10D (hereinafter, these may be collectively referred to as "MFP10") and a mobile terminal 50. The MFP 10 and the mobile terminal 50 are configured to be communicable through a communication network. The communication network may be, for example, a wired LAN, a wireless LAN 102, 103, or a combination thereof. Further, in the present embodiment, the following processing will be described on the premise that a fixed IP address is assigned to each device in advance, but it may be dynamically assigned by DHCP or the like.

The MFPs 10A and 10B and the mobile terminal 50 belong to the wireless LAN 102. That is, the mobile terminal 50 can wirelessly communicate with the MFPs 10A and 10B through the access point 102A. The network address of the wireless LAN 102 is "192.168.1.0/24". More specifically, the IP address "192.168.1.160" is assigned to the MFP 10A, the IP address "192.168.1.204" is assigned to the MFP 10B, and the IP address "192" is assigned to the mobile terminal 50. It is assumed that ".168.1.15" is assigned.

Further, the MFPs 10C and 10D belong to the wireless LAN 103. The network address of the wireless LAN 103 is "192.168.2.0/24". More specifically, it is assumed that the MFP10C is assigned the IP address "192.168.2.24" and the MFP10D is assigned the IP address "192.168.2.211". That is, the wireless LANs 102 and 103 are communication networks to which different network addresses are assigned. Further, different SSIDs are assigned to the access points 102A and 103A.

Further, the access points 102A and 103A are connected to the router 104. That is, the wireless LANs 102 and 103 are connected to each other through the router 104. As a result, the mobile terminal 50 can wirelessly communicate with the MFPs 10C and 10D through the access point 102A, the router 104, and the access point 103A. The "wireless communication" of the present embodiment is not limited to the wireless section between the devices at both ends (for example, the mobile terminal 50 and the MFP 10D), and a part (for example, the MFP 10 and the access point 102A). The section between the access points 102A and 103A and the router 104) may be a wired section.

As shown in FIG. 2A, the MFP 10 mainly includes a printer 11, a scanner 12, a display 23, an input I / F 24, a communication I / F 25, a CPU 31, a memory 32, and a communication bus 33. Prepare for. The components constituting the MFP 10 are connected to each other through the communication bus 33. The MFP 10 is an example of an image processing device.

The printer 11 is hardware that executes a printing operation of recording an image represented by image data on a sheet. As the recording method of the printer 11, a known method such as an inkjet method or an electrophotographic method can be adopted. The scanner 12 is hardware that performs a scanning operation that reads an image recorded on a document and generates image data. The print operation and the scan operation are examples of image processing operations. The MFPs 10A, 10B, 10C, and 10D may be used as long as they can execute at least one image processing operation. Further, the image processing operations that the MFPs 10A, 10B, 10C, and 10D can perform may be different.

The display 23 is a liquid crystal display, an organic EL display, or the like, and includes a display screen for displaying various information.

The input I / F 24 is a user interface that accepts an input operation by the user. Specifically, the input I / F 24 has a button, and outputs various operation signals associated with the pressed button to the CPU 31. Further, the input I / F 24 may have a film-like touch sensor superimposed on the display screen of the display 23. The operation of designating an object displayed on the display screen of the display 23 and the operation of inputting a character string or a number string are examples of user operations. The "object" is, for example, a character string, an icon, a button, a link, a radio button, a check box, a pull-down menu, or the like displayed on the display 23.

The input I / F 24 realized as a touch sensor outputs position information indicating a position on the display screen touched by the user. The term "touch" in the present specification includes all operations of bringing the input medium into contact with the display screen. Further, even if the input medium does not touch the display screen, the "hover" or "floating touch" that brings the input medium close to the position where the distance from the display screen is very small is used as the above-mentioned concept of "touch". May be included. Further, the input medium may be a user's finger, a stylus, or the like. The user operation of tapping the position of the object displayed on the display 23 is an example of the user operation of designating the object.

The communication I / F 25 is an interface capable of communicating with an external device through the communication network 101. That is, the MFP 10 transmits various information to the external device through the communication I / F25, and receives various information from the external device through the communication I / F25. The specific communication procedure of the communication I / F 25 is not particularly limited, but for example, Wi-Fi (registered trademark) can be adopted.

The CPU 31 controls the overall operation of the MFP 10. The CPU 31 acquires and executes various programs described later from the memory 32 based on various information output from the input I / F 24, various information received from the external device through the communication I / F 25, and the like. The CPU 31 and the memory 32 form an example of a controller.

The memory 32 stores the OS 34 and the device program 35. The device program 35 may be a single program or a collection of a plurality of programs. Further, the memory 32 stores data or information necessary for executing the device program 35. The memory 32 is composed of, for example, a RAM, a ROM, an EEPROM, an HDD, a portable storage medium such as a USB memory attached to and detached from the MFP 10, a buffer included in the CPU 31, or a combination thereof.

The memory 32 may be a computer-readable storage medium. A computer-readable storage medium is a non-transitional medium. In addition to the above examples, the non-transitory medium also includes recording media such as a CD-ROM and a DVD-ROM. The non-transitory medium is also a tangible medium. On the other hand, an electric signal that carries a program downloaded from a server on the Internet is a signal medium that can be read by a computer, which is a kind of medium that can be read by a computer, but is a storage that can be read by a non-transitory computer. Not included in the medium. The same applies to the memory 62 of the mobile terminal 50 described later.

As shown in FIG. 2B, the mobile terminal 50 mainly includes a display 53, an input I / F 54, a communication I / F 55, a CPU 61, a memory 62, and a communication bus 63. The display 53, the input I / F 54, the communication I / F 55, the CPU 61, the memory 62, and the communication bus 63 included in the mobile terminal 50 are the display 23, the input I / F 24, the communication I / F 25, the CPU 31, and the memory included in the MFP 10. Since the configuration is the same as that of 32 and the communication bus 33, the description thereof will be omitted. The CPU 61 and the memory 62 are examples of the controller.

The mobile terminal 50 is, for example, a mobile phone, a smartphone, a tablet terminal, or the like. More specifically, the display 53 of the mobile terminal 50 preferably has a display screen size of 12 inches or less, more preferably 8 inches or less. Further, it is desirable that the input I / F 54 of the mobile terminal 50 is a touch sensor superimposed on the display screen of the display 53.

The memory 62 stores the OS 64 and the terminal program 65. Further, the memory 62 can store a history list, for example, as shown in FIG. The history list contains one or more history records. The history record is registered in the history list by the terminal program 65 in S64 described later. The history record includes, for example, a device ID, a history IP address, a connection flag, and time information.

The device ID is an example of device information that identifies the MFP 10. The device ID may be, for example, the MAC address assigned to the communication I / F25, the model name of the MFP10, or the like. In this embodiment, the MFP10A is identified by the device ID "MFP-A", the MFP10B is identified by the device ID "MFP-B", the MFP10C is identified by the device ID "MFP-C", and the MFP10D is the device ID "MFP". -D "identified. The historical IP address is an example of historical address information assigned to the MFP 10 identified by the device ID.

The connection flag is information indicating whether or not communication has been possible with the MFP 10 identified by the device ID. In the connection flag, the first value "ON" corresponding to the communication with the MFP 10 or the second value "OFF" corresponding to the failure to communicate with the MFP 10 is set. The time information is information indicating the time when the second value "OFF" is set in the connection flag. That is, the time information is included only in the history record in which the second value "OFF" is set in the corresponding connection flag.

Although not shown, the memory 62 stores mode information. The mode information is information indicating whether or not communication with an external device is permitted through the communication I / F 55 (hereinafter, may be referred to as "Wi-Fi mode"). In the mode information, a third value "ON" corresponding to permitting communication with an external device or a fourth value "OFF" corresponding to not permitting communication with an external device is set. The set value of the mode information may be switched by a user operation through the input I / F 54, or may be switched by the terminal program 65, for example.

That is, the communication I / F55 monitors the beacon signal transmitted from the access point 102A when the third value “ON” is set in the mode information, and the transmission source responds to the reception of the beacon signal. Connect to access point 102A. Then, the mobile terminal 50 can communicate with the external device through the communication I / F 55 connected to the access point 102A. On the other hand, the communication I / F55 does not monitor the beacon signal when the fourth value "OFF" is set in the mode information. That is, the communication I / F 55 is not connected to the access point 102A. As a result, the mobile terminal 50 cannot communicate with the external device through the communication I / F 55.

Although not shown, the memory 62 can store the designated device ID. The designated device ID is an example of designated device information that identifies the MFP 10 (hereinafter, referred to as “designated device”) designated by the user through the input I / F 54. That is, the designated device ID is a device ID received from the designated device. Further, although not shown, the memory 62 may be provided with a data folder. For example, photo data, document data, presentation data, spreadsheet data, and the like may be stored in the data folder. The various data stored in the data folder are data that can be the target of the print operation.

[Operation of system 100]
The operation of the system 100 according to the present embodiment will be described with reference to FIGS. 4 to 6. At the start of the main process, it is assumed that three history records are registered in the history list as shown in FIG.

The flowchart of the present specification basically shows the processing of the CPUs 31 and 61 according to the instructions described in the program. That is, the processes such as "determination", "extraction", "selection", "calculation", "determination", "specification", and "control" in the following description represent the processes of the CPUs 31 and 61. The processing by the CPUs 31 and 61 also includes hardware control via the OS 34 and 64. Further, the "data" in the present specification is represented by a computer-readable bit string. Data having the same substantial meaning and different formats are treated as the same data. The same applies to "information" in the present specification.

[Main processing]
First, the terminal program 65 executes the main process shown in FIG. 4 in response to being activated by the user. First, the terminal program 65 causes the display 53 to display the main screen shown in FIG. 7 (A) (S11). The main screen includes operation icons 111 and 112 and switching icons 113. The operation icon 111 corresponds to the print operation, and the operation icon 112 corresponds to the scan operation. The switching icon 113 corresponds to an instruction to switch the designated device. When the designated device ID is not stored in the memory 62, the switching icon 113 describes an “unselected” character string indicating that the designated device is not designated. Then, the terminal program 65 accepts the user operation for the main screen through the input I / F 54 (S12).

Next, the terminal program 65 searches for an MFP 10 capable of communicating through the wireless LAN 102 to which the communication I / F 55 is connected in response to the reception of the designation of the switching icon 113 through the input I / F 54 (S12: switching) (S12: switching). S13). This process is an example of a first search process for searching the MFP 10 that can be a designated device by the first method, and is realized by using, for example, SNMP (abbreviation of Simple Network Management Protocol). More specifically, the terminal program 65 broadcasts transmission request information to the wireless LAN 102 through the communication I / F 55. The process of S13 is an example of the first transmission process. Then, the terminal program 65 waits for the execution of the processing after S14 until the first time elapses after the transmission request information is transmitted in S13.

As an example, the terminal program 65 may set the broadcast address “192.168.2.155” as the destination address of the IP packet including the transmission request information and send it to the wireless LAN 102. Upon receiving the IP packet for which the broadcast address is set, the access point 102A and the router 104 transmit the IP packet to all the devices belonging to the wireless LAN 102. However, the router 104 does not relay the transmission request information broadcast in the wireless LAN 102 to the device belonging to the wireless LAN 103.

As another example, the terminal program 65 sets a plurality of transmission requests in which one of all the IP addresses "192.168.1.1" to "192.168.1.254" in the wireless LAN 102 is set as the destination address. The information may be sequentially transmitted to the access point 102A through the communication I / F55. That is, the terminal program 65 may unicast the transmission request information to all the devices belonging to the wireless LAN 102.

On the other hand, although not shown, the device program 35 of the MFPs 10A and 10B receives transmission request information from the mobile terminal 50 through the communication I / F25. Then, the device program 35 of the MFPs 10A and 10B transmits the device ID of its own device to the mobile terminal 50 through the communication I / F 25 as a response to the transmission request information. However, depending on the traffic of the wireless LAN 102, if the MFPs 10A and 10B cannot receive the transmission request information before the first time elapses after the transmission request information is transmitted, or if the device ID returned by the MFPs 10A and 10B is a mobile terminal. It may not reach 50. Further, the MFPs 10C and 10D belonging to the wireless LAN 103 do not receive the transmission request information transmitted in S13.

Next, the terminal program 65 receives the device ID transmitted as a response to the transmission request information from the MFPs 10A and 10B through the communication I / F55. Then, the terminal program 65 associates the received device ID with the source address of the IP packet including the device ID (that is, the IP address of the MFP 10 of the source of the device ID) and temporarily stores it in the memory 62. .. This process is an example of the first reception process.

However, as described above, the terminal program 65 may receive the device ID from both the MFPs 10A and 10B, may receive the device ID from only one of the MFPs 10A and 10B, or may receive the device ID from only one of the MFPs 10A and 10B. The device ID may not be received from. Then, the terminal program 65 determines whether or not one or more device IDs have been received according to the elapse of the first time after the transmission request information is transmitted (S14). The fact that the device ID is received by the time when the first time elapses is an example of the detection of the MFP 10 identified by the device ID. The process of S14 is an example of the first determination process.

Next, the terminal program 65 causes the display 53 to display the device selection screen shown in FIG. 7B in response to the determination that one or more device IDs have been received (S14: Yes) (S15). .. FIG. 7B is a device selection screen when device IDs are received from both the MFPs 10A and 10B. The device selection screen includes device icons 121 and 122. The device icons 121 and 122 correspond to one of a set of device IDs and IP addresses temporarily stored in the memory 62. The corresponding device ID and IP address are described in the device icons 121 and 122. Then, the terminal program 65 accepts the user operation for the device selection screen through the input I / F 54 (S16).

Next, the terminal program 65, for example, receives the designation of the device icon 121 through the input I / F 54 (S16: Yes), and receives the device ID “MFP-A” corresponding to the designated device icon 121. , Stored in the memory 62 as the designated device ID (S17). If the designated device ID is already stored in the memory 62, the terminal program 65 overwrites the designated device ID with a new designated device ID. S17 is an example of the first storage process. Then, the terminal program 65 re-executes the processing after S11. The main screen displayed here is different from FIG. 7A in that the designated device ID “MFP-A” is described in the switching icon 113.

On the other hand, the terminal program 65 sets the mode information according to the determination that the device ID has not been received by the time when the first time elapses after the transmission request information is transmitted in S13 (S14: No). Judgment (S19). The process of S19 is an example of the fifth determination process. Then, the terminal program 65 displays the switching confirmation screen shown in FIG. 8A on the display 53 in response to the determination that the fourth value “OFF” is set in the mode information (S19: OFF). Let (S20). The switching confirmation screen includes a message "Wi-Fi mode is OFF. Do you want to switch it ON?", A [Yes] icon 131, and a [No] icon 132. Then, the terminal program 65 accepts the user operation for the switching confirmation screen through the input I / F 54 (S21).

Next, the terminal program 65 sets the third value “ON” in the mode information stored in the memory 62 in response to the reception of the designation of the [Yes] icon 131 through the input I / F 54 (S21: Yes). (S22). The process of S22 is an example of a switching process of switching the set value of the mode information from the fourth value “OFF” to the third value “ON”. Then, the terminal program 65 re-executes the processing after S13. On the other hand, the terminal program 65 does not execute the process of S22 but re-executes the processes after S11 in response to the reception of the designation of the [No] icon 132 through the input I / F 54 (S21: No).

Further, the terminal program 65 executes the alternative search process A (S23) in response to the determination that the third value “ON” is set in the mode information (S19: ON). The alternative search process A is a process of searching the MFP 10 by a method different from that of the first search process. The details of the alternative search process A will be described with reference to FIG.

[Alternative search process A]
First, the terminal program 65 determines whether or not a history record is registered in the history list (S31). The process of S31 is an example of the second determination process. Next, the terminal program 65 causes the display 53 to display the history selection screen shown in FIG. 8B in response to the determination that the history record is registered in the history list (S31: Yes). ). Then, the terminal program 65 accepts the user operation for the history selection screen through the input I / F 54 (S33). The process of S33 is an example of the third reception process.

The history selection screen includes history icons 141, 142, 143 and a [Cancel] icon 144. The history icons 141 to 143 correspond to one of a plurality of history records registered in the history list. The device ID and the history IP address included in the corresponding history record are described in the history icons 141 to 143. The [Cancel] icon 144 corresponds to an instruction not to select a history record.

Next, the terminal program 65 reads, for example, the history record corresponding to the designated history icon 142 from the history list in response to the reception of the designation of the history icon 142 through the input I / F 54 (S33: history). .. Next, the terminal program 65 transmits the transmission request information in which the history IP address “192.168.2.84” of the read history record is set as the destination address to the access point 102A through the communication I / F55 (S34). .. This transmission request information is relayed to the MFP 10C by the access point 102A, the router 104, and the access point 103A. That is, the terminal program 65 unicasts the transmission request information to the MFP 10C identified by the historical IP address. The process of S34 is an example of the fourth transmission process.

Next, the terminal program 65 waits for the execution of the processing after S35 until the third time elapses after the transmission request information is transmitted in S34. The third hour is a predetermined time longer than the first hour. Then, the terminal program 65 receives the device ID “MFP-C” from the MFP 10C through the communication I / F 55 as a response to the transmission request information transmitted in S34 (S35). The process of S35 is an example of the fourth reception process, and the process of S32 to S35 is an example of the third search process of searching the MFP 10 by the third method.

Next, the terminal program 65 sets the first value "ON" in the connection flag of the history record read from the history list in response to receiving the device ID "MFP-C" from the MFP 10C (S35: Yes). (S36). Further, the terminal program 65 stores the device ID “MFP-C” received in S35 in the memory 62 as the designated device ID (S37). The process of S36 is an example of the first setting process, and S37 is an example of the first storage process. Then, the terminal program 65 returns to S11 in FIG. 4 and causes the display 53 to display the main screen in which the designated device ID “MFP-C” is described in the switching icon 113.

On the other hand, the terminal program 65 has accepted the designation of the [Cancel] icon 144 on the history selection screen through the input I / F 54 in response to the determination that the history record is not registered in the history list (S31: None). According to (S33: Cancellation), or according to the fact that the device ID "MFP-C" was not received by the third time after the transmission request information was transmitted in S34 (S35: No). The second value “OFF” is set in the connection flag of the history record read from the history list (S38). Further, the terminal program 65 acquires time information indicating the current time from a system clock (not shown) and sets it in the history record. The process of S38 is an example of the second setting process.

Next, the terminal program 65 causes the guide screen shown in FIG. 9A to be displayed on the display 53 (S39). On the guide screen, the message "The MFP cannot be found. Do you want to search by specifying the IP address?", The [Yes] icon 151, which is an example of the first object, and the example of the second object [ No] This is an example of the first screen including the icon 152. The message on the guide screen is an example of a message prompting the input of the IP address, and the specific wording is not limited to this. Then, the terminal program 65 accepts the user operation for the guide screen through the input I / F 54 (S40). The process of S39 is an example of the first display process, and the process of S40 is an example of the second reception process.

Next, the terminal program 65 executes the alternative search process B in response to the reception of the designation of the [Yes] icon 151 through the input I / F 54 (S40: Yes) (S41). On the other hand, the terminal program 65 returns to S11 in FIG. 4 and returns to the main screen in response to the reception of the designation of the [No] icon 152 through the input I / F 54 (S40: No) without executing the process of S41. Is displayed on the display 53. The alternative search process B is a process of searching the MFP 10 by a method different from that of the first search process and the third search process. The details of the alternative search process B will be described with reference to FIG.

[Alternative search process B]
First, the terminal program 65 displays the address input screen shown in FIG. 9B on the display 53 (S51). The address input screen includes a text box 161 that displays the IP address entered by the user, its own IP address "192.168.1.15/24", a non-connectable device "192.168.2.84", and [ It is an example of the second screen including the [decision] icon 162. The local IP address indicates the IP address assigned to the communication I / F55. The unconnectable device indicates the history IP address of the history record in which the first value "OFF" is set in the connection flag. Then, the terminal program 65 accepts the user operation for the address input screen through the input I / F 54 (S52). S51 is an example of the second display process, and the process of S52 is an example of the first reception process.

The terminal program 65 displays, for example, an IP address (hereinafter, referred to as “input IP address”) input through a software keyboard (not shown) in the text box 161. Further, the terminal program 65 temporarily stores the input IP address displayed in the text box 161 in the memory 62 in response to the reception of the designation of the [OK] icon 162 through the input I / F 54 (S52: Yes). .. Next, the terminal program 65 determines whether or not the second value “OFF” is set in the connection flag of the history record including the input IP address as the history IP address (S53). The process of S53 is an example of the third determination process.

As an example, the terminal program 65 inputs the IP address "192.168.2.84" and the designation of the [OK] icon 162 in response to the reception through the input I / F54 (S52: Yes). It is determined that the second value "OFF" is set in the connection flag of the history record including the IP address as the history IP address (S53: Yes). The terminal program 65 in this case is acquired from a system clock (not shown) from the time "2017.4.10 17:50" indicated by the time information of the history record including the IP address "192.168.2.84". Calculate the elapsed time to the current time indicated by the time information. Next, the terminal program 65 determines whether or not the calculated elapsed time is equal to or longer than a predetermined threshold time (for example, 1 hour, 24 hours, etc.) (S54). The process of S54 is an example of the fourth determination process.

Next, the terminal program 65 does not execute the processing after S57 in response to the determination that the calculated elapsed time is less than the threshold time (S54: No), and the error screen shown in FIG. 10A is shown. Is displayed on the display 53 (S55). The error screen contains the message "The specified MFP was not found. Please search again." And the [OK] icon 170. Then, the terminal program 65 accepts the user operation for the error screen through the input I / F 54 (S56).

Then, the terminal program 65 re-executes the processing after S51 in response to the reception of the designation of the [OK] icon 170 through the input I / F 54 (S56: Yes). On the other hand, the terminal program 65 uses the input IP address "192.168.2.84" according to the determination that the elapsed time is equal to or longer than the threshold time (S54: No), and performs the processing after S57, which will be described later. Execute.

As another example, the terminal program 65 accepts the input of the IP address "192.168.2.160" and the designation of the [OK] icon 162 through the input I / F 54 (S52: Yes). , It is determined that the first value "ON" is set in the connection flag of the history record including the input IP address as the history IP address (S53: No), and the processing after S57 is executed. As yet another example, the terminal program 65 uses the input IP address as the history IP address in response to the reception of the input of the IP address "192.168.1.204" through the input I / F54 (S52: Yes). It is determined that the included history record is not registered in the history list (S53: No), and the processing after S57 is executed.

Next, the terminal program 65 transmits the transmission request information in which the input IP address (for example, 192.168.1.204) received in S52 is set as the destination address to the access point 102A through the communication I / F55. (S57). This transmission request information is relayed to the MFP 10B by the access point 102A. That is, the terminal program 65 unicasts the transmission request information to the MFP 10B identified by the input IP address. The process of S57 is an example of the second transmission process.

Next, the terminal program 65 waits for the execution of the processing after S58 until the second time elapses after the transmission request information is transmitted in S57. The second time is a predetermined time longer than the first time. Further, the second time may be the same as the third time. Then, the terminal program 65 receives the device ID “MFP-B” from the MFP 10B through the communication I / F 55 as a response to the transmission request information transmitted in S57 (S58). The process of S58 is an example of the second reception process, and the process of S51 to S58 is an example of the second search process of searching the MFP 10 by the second method. Then, the terminal program 65 has the device ID "MFP" by the time the second time elapses.
-B ”is received (S58: Yes), and the processes of S63 and subsequent steps are executed without executing the processes of S59 to S62.

More specifically, the terminal program 65 stores the device ID “MFP-B” received in S58 in the memory 62 as the designated device ID (S63). Further, the terminal program 65 registers a new history record in the history list (S64). The history record registered in S64 includes the device ID "MFP-B" received in S58, and has a history of the source IP address "192.168.1.204" of the IP packet including the device ID "MFP-B". It is included as an IP address and includes a connection flag for which the first value "ON" is set. The process of S63 is an example of the first storage process, and the process of S64 is an example of the second storage process. Then, the terminal program 65 returns to S11 in FIG. 4 and causes the display 53 to display the main screen in which the designated device ID “MFP-B” is described in the switching icon 113.

On the other hand, the terminal program 65 does not receive the device ID "MFP-B" by the time when the second time elapses after the transmission request information is transmitted in S57 (S58: No), and the input IP address. The transmission request information is broadcast to the communication network to which "192.168.1.204" belongs (that is, the wireless LAN 102) through the communication I / F55 (S59). The process of S59 is an example of the third transmission process. Then, the terminal program 65 waits for the execution of the processing after S60 until the first time elapses after the transmission request information is transmitted in S59. The process of S60 is an example of the third reception process.

Next, in response to receiving the device ID “MFP-B” from the MFP 10B through the communication I / F 55, for example, the terminal program 65 responds to the transmission request information transmitted in S59 (S60: Yes), FIG. The selection confirmation screen shown in (B) is displayed on the display 53 (S61). The selection confirmation screen includes the message "The MFP-B was found. Do you want to specify it?", The [Yes] icon 181 and the [No] icon 182. Then, the terminal program 65 accepts the user operation for the selection confirmation screen through the input I / F 54.

Next, the terminal program 65 executes the above-mentioned S63 and subsequent processes in response to the reception of the designation of the [Yes] icon 181 through the input I / F 54 (S62: Yes). On the other hand, the terminal program 65 responds that the device ID has not been received by the time when the first time elapses after the transmission request information is transmitted in S59 (S60: No), or [No] on the selection confirmation screen. In response to the fact that the designation of the icon 182 is accepted through the input I / F54 (S62: No), the processes of S63 and S64 are not executed, and the processes of S11 and subsequent steps are executed again. In S60, the device ID is not always received from the MFP 10B identified by the input IP address. Further, when a plurality of device IDs are received in S60, the user may be made to select one of the received plurality of device IDs.

Returning to FIG. 4 again, the terminal program 65 receives the designation of the operation icon 111 through the input I / F 54 in the state where the designated device ID is stored in the memory 62 (S12: operation), and the operation icon. An operation instruction process for causing the designated device to execute the print operation corresponding to 111 is executed (S18). Although the flowchart of the operation instruction process for instructing the print operation is omitted, for example, the following process is executed.

First, the terminal program 65 accepts a user operation for designating one of a plurality of data stored in the data folder of the memory 62 (hereinafter, referred to as “designated data”) through the input I / F 54. Further, the terminal program 65 may accept a user operation for specifying execution conditions (for example, sheet size, image quality, etc.) of the print operation through the input I / F 54, or a state in which the image indicated by the designated data is recorded on the sheet. A preview screen indicating the above may be displayed on the display 53. Then, the terminal program 65 transmits the print instruction information to the designated device through the communication I / F 55. The print instruction information is an example of the operation instruction information instructing the execution of the print operation targeting the designated data. The print instruction information includes, for example, designated data and condition information indicating an execution condition specified by the user.

On the other hand, the device program 35 of the MFP 10 receives print instruction information from the mobile terminal 50 through the communication I / F 25. Then, the apparatus program 35 causes the printer 11 to execute the print operation according to the received print instruction information. That is, the printer 11 records the image indicated by the designated data included in the print instruction information on the sheet according to the execution conditions indicated by the condition information.

Further, the terminal program 65 receives the designation of the operation icon 112 through the input I / F 54 in the state where the designated device ID is stored in the memory 62 (S12: operation), and the scan corresponding to the operation icon 112. The operation instruction process for causing the designated device to execute the operation is executed (S18). Although the flowchart of the operation instruction process for instructing the scan operation is omitted, for example, the following process is executed.

First, the terminal program 65 accepts a user operation for specifying an execution condition of a scan operation (for example, a reading resolution, a save destination of scan data, etc.) through an input I / F 54. Next, the terminal program 65 transmits scan instruction information to the designated device through the communication I / F 55. The scan instruction information is an example of the operation instruction information instructing the execution of the scan operation. The scan instruction information includes, for example, condition information indicating an execution condition specified by the user.

On the other hand, although not shown, the device program 35 of the MFP 10 receives scan instruction information from the mobile terminal 50 through the communication I / F 25. Then, the apparatus program 35 causes the scanner 12 to execute the scanning operation according to the received scanning instruction information. That is, the scanner 12 reads the original set in the ADF or the contact glass (not shown) at the reading resolution shown in the scan instruction information, and generates scan data. Then, the device program 35 saves the scan data generated by the scanner 12 in a storage destination (for example, a USB memory (not shown), a mobile terminal 50) indicated by the scan instruction information.

[Action and effect of this embodiment]
According to the above embodiment, when the MFP10 cannot be detected in the first search process (S13), the MFP10 is searched by the second search process (S51 to S58) different from the first search process. That is, when the MFP 10 cannot be detected by broadcasting the transmission request information, the transmission request information is unicast to the MFP 10 identified by the IP address specified by the user through the address input screen. This increases the possibility that the desired MFP 10 can be appropriately detected even when the MFPs 10C and 10D to which different network addresses are assigned are specified, or even when the traffic of the wireless LAN 102 is large.

Further, according to the above embodiment, when the MFP 10 cannot be detected by the second search process, the transmission request information is broadcast to the communication network including the input IP address. This increases the possibility that the desired MFP 10 can be detected even if the IP address is erroneously input through the address input screen. Note that S59 is not limited to broadcasting the transmission request information. As another example, the terminal program 65 may transmit (that is, multicast) transmission request information to each device identified by the IP address in which the last digit of the input IP address is replaced with 0 to 9. ..

Further, according to the above embodiment, since the waiting time in S35 and S58 is longer than the waiting time in S14, the probability that the MFP10 can be detected in the second detection process and the third detection process is compared with the first detection process. Can be made higher. In S14, S35, S58, and S60, the terminal program 65 retransmits the transmission request information (that is, S13, S34, S57, when the device ID cannot be received by the time when the predetermined standby time elapses. The retry of S59) may be executed. Then, the terminal program 65 may increase the number of retries in S35 and S58 more than in S14 and S60. That is, the terminal program 65 may have at least one of the waiting time and the number of retries in S35 and S58 different from those in S14 and S60.

Further, according to the above embodiment, when the MFP 10 cannot be detected in the first search process, the third search process using the history list is executed prior to the second search process. As a result, the MFP 10 identified by the IP address can be detected without re-inputting the IP address input in the past S52. That is, it is possible to reduce the operational burden on the user who inputs the IP address of the desired MFP 10. The registration of the history record is not limited to the timing when the designated device is designated in the second search process, and may be the timing when the designated device is designated in the first search process.

Further, according to the above embodiment, when the MFP 10 cannot be detected in the first search process, the user can be made to recognize the possibility that the MFP 10 can be detected by inputting the IP address through the guide screen. As a result, the possibility of detecting the MFP 10 is further increased. Further, since the IP address assigned to the mobile terminal 50 and the IP address of the MFP 10 that could not be detected in the past third search process are notified to the user through the address input screen, the MFP 10 can be detected by the second search process. The sex is further enhanced.

Further, it is highly possible that the MFP 10 whose threshold time has not elapsed since the second value “OFF” is set in the connection flag does not respond even if the transmission request information is unicast again in S57. On the other hand, the MFP 10 for which the threshold time has elapsed since the second value "OFF" was set in the connection flag may be in a state where the device ID can be transmitted. Therefore, as in the above embodiment, whether to unicast the transmission request information to the MFP 10 identified by the historical IP address according to the elapsed time since the second value "OFF" is set in the connection flag (S54). It is desirable to judge whether or not.

Further, according to the above embodiment, when the fourth value "OFF" is set in the mode information, the first search process is retried after switching the mode information to the third value "ON". The possibility of detecting the MFP 10 is further increased. However, the execution timing of the processes of S19 to S22 is not limited to the above-mentioned example. As another example, the terminal program 65 may execute the processes of S19 to S22 prior to S13.

Further, the processing when the fourth value "OFF" is set in the mode information is not limited to the above-mentioned example. As another example, the terminal program 65 may execute the alternative search process A (S23) while executing S22 in response to the designation of the [Yes] icon 131 in S21. In this case, the processing of S22 may be before S57, regardless of whether it is before or after S51 & S52. This further increases the possibility of detecting the MFP 10 by the second search process.

In the above embodiment, an example of executing the second search process when the MFP 10 cannot be detected by the first search process has been described, but the execution order of the search process is not limited to the above example. Further, the MFP 10 may be searched by a method different from the first search process, the second search process, and the third search process. As another example, when the MFP 10 cannot be detected by the second search process, the first search process may be executed. The main process according to the modified example will be described with reference to FIG. However, the same reference numbers are assigned to the processes common to those in FIGS. 4 and 6, and detailed description thereof will be omitted.

First, the terminal program 65 causes the display 53 to display the address input screen shown in FIG. 9B in response to the reception of the designation of the switching icon 113 on the main screen through the input I / F 54 (S12: switching). (S51). Next, the terminal program 65 receives the input of the IP address and the designation of the [OK] icon 162 through the input I / F 54 (S52: Yes), and the MFP 10 is identified by the input IP address. Unicast the transmission request information to (S57). Next, the terminal program 65 responds to receiving the device ID from the MFP 10 through the communication I / F55 by the time when the second time elapses after unicasting the transmission request information (S58: Yes). The ID is stored in the memory 62 as the designated device ID (S17).

On the other hand, the terminal program 65 responds that the device ID is not received by the time when the second time elapses after unicasting the transmission request information (S58: No), and the transmission request information is sent to the wireless LAN 102 through the communication I / F55. Is broadcast (S13). Next, the terminal program 65 causes the display 53 to display the device selection screen shown in FIG. 7 (B) (S15). The device selection screen includes a device icon corresponding to the device ID received from the broadcast of the transmission request information to the elapse of the first time. Then, the terminal program 65 assigns the device ID corresponding to the designated device icon to the designated device ID in response to the reception of the user operation for designating one of the device icons through the input I / F 54 (S16: Yes). Is stored in the memory 62.

That is, in the main process according to the modification, the transmission request information is broadcast to the wireless LAN 102 when the MFP 10 identified by the IP address specified by the user cannot be detected through the address input screen. This increases the possibility that the MFP 10 can be detected even if the IP address is erroneously input. Of the processes shown in FIGS. 4 to 6, the processes not shown in FIG. 11 can be applied to modified examples.

Further, in the MFP 10 and the mobile terminal 50 of the above embodiment, an example in which each process executed by the controller of the present invention is realized by executing various programs stored in the memories 32 and 62 by the CPUs 31 and 61. explained. However, the configuration of the controller is not limited to this, and a part or all of the controller may be realized by hardware such as an integrated circuit.

Further, the present invention can be realized not only as the MFP 10 and the mobile terminal 50, but also as a program for causing the MFP 10 and the mobile terminal 50 to execute processing. Then, the program may be recorded and provided on a non-transitory recording medium. The non-transitory recording medium may include a storage unit mounted on a server that can be connected to the MFP 10 and the mobile terminal 50 through a communication network, in addition to a CD-ROM, a DVD-ROM, and the like. Then, the program stored in the storage unit of the server may be distributed through a communication network such as the Internet as information or a signal indicating the program.

10 ... MFP
11 ... Printer 12 ... Scanner 23, 53 ... Display 24, 54 ... Input I / F
25, 55 ... Communication I / F
31,61 ... CPU
32, 62 ... Memory 35 ... Device program 50 ... Mobile terminal 65 ... Terminal program 102, 103 ... Wireless LAN
102A, 103A ... Access point 104 ... Router

Claims (14)

A program that can be executed by a mobile terminal having a communication interface, an input interface, and a memory.
The program
In the communication network to which the communication interface is connected, the first search process for searching an image processing device capable of executing an image processing operation by the first method, and
The first determination process for determining whether or not the image processing device is detected in the first search process, and
A second search process for searching the image processing device by a second method different from the first method in response to the determination that the image processing device was not detected in the first determination process.
A first storage process for storing device information for identifying the image processing device detected in the first search process or the second search process in the memory as designated device information.
The image processing device identified by the designated device information stored in the memory causes the mobile terminal to execute an operation instruction process for transmitting operation instruction information instructing execution of the image processing operation through the communication interface. ,
The program
In one of the first search process and the second search process,
The first transmission process of broadcasting the transmission request information requesting the transmission of the device information to the communication network through the communication interface, and
As a response to the transmission request information transmitted in the first transmission process, the mobile terminal is made to execute the first reception process of receiving the device information from the image processing device through the communication interface.
In the other of the first search process and the second search process,
A first reception process that accepts a user operation for inputting address information that identifies the image processing device in the communication network through the input interface.
A second transmission process of unicasting the transmission request information to the image processing device identified by the address information received in the first reception process through the communication interface.
As a response to the transmission request information transmitted in the second transmission process, the mobile terminal is made to execute a second reception process of receiving the device information from the image processing device through the communication interface.
In the first determination process, a program for determining whether or not the device information is received before the first time elapses after the transmission request information is transmitted in the first search process. The program
In the first search process, the mobile terminal is made to execute the first transmission process and the first reception process.
The program according to claim 1, wherein in the second search process, the first reception process, the second transmission process, and the second reception process are executed by the mobile terminal. The mobile terminal is equipped with a display.
The program
A first screen including a message prompting the input of the address information, the first object, and the second object is displayed on the display in response to the determination that the image processing device has not been detected in the first determination process. The first display process to make
The second reception process that accepts the user operation for the first screen through the input interface,
In response to the reception of the designation of the first object in the second reception process, the mobile terminal is made to execute the second search process.
The program according to claim 2, wherein the second search process is not executed in response to the acceptance of the designation of the second object in the second reception process. The program
In response to the fact that the device information is not received in the second reception process before the second time elapses after the transmission request information is transmitted in the second transmission process.
A third transmission process of multicasting the transmission request information to a device identified by a plurality of address information including a part of the address information received in the first reception process.
As a response to the transmission request information transmitted in the third transmission process, the mobile terminal is made to execute a third reception process of receiving the device information from the image processing device through the communication interface.
The program according to claim 2 or 3, wherein in the first storage process, the device information received in the third reception process is stored in the memory as the designated device information. The program according to claim 4, wherein the second hour is longer than the first hour. The program
In the second search process, the address information received in the first reception process in response to the reception of the device information in the second reception process is stored in the memory as historical address information. Let the mobile terminal execute the storage process
A second determination process for determining whether or not the history address information is stored in the memory in response to the determination that the image processing device was not detected in the first determination process.
In response to the determination that the history address information is not stored in the second determination process, the mobile terminal is made to execute the second search process.
In response to the determination that the historical address information is stored in the second determination process, a third search process for searching the image processing device by a third method different from the first method and the second method is performed. Let the mobile terminal execute it,
In the third search process,
A third reception process that accepts a user operation that specifies one of the historical address information stored in the memory through the input interface, and
A fourth transmission process of unicasting the transmission request information through the communication interface to the image processing device identified by the history address information designated in the third reception process.
As a response to the transmission request information transmitted in the fourth transmission process, the mobile terminal is made to execute a fourth reception process of receiving the device information from the image processing device through the communication interface.
In the first storage process, the device information that identifies the image processing device detected by the first search process, the second search process, or the third search process is stored in the memory as the designated device information. The program according to any one of claims 2 to 5. The mobile terminal is equipped with a display.
The memory stores a connection flag in association with the historical address information.
The program
In response to the fact that the device information was received in the fourth reception process before the third time elapses after the transmission request information was transmitted in the fourth transmission process.
The first setting process for setting the first value to the connection flag associated with the history address information for which the designation was accepted in the third reception process, and the first setting process.
The mobile terminal is made to execute the first storage process.
In response to the fact that the device information is not received in the fourth reception process before the third time elapses after the transmission request information is transmitted in the fourth transmission process.
A second setting process for setting a second value in the connection flag associated with the history address information for which a designation has been accepted in the third reception process, and a second setting process.
Let the mobile terminal execute the second search process,
In the second search process,
The second display process of displaying the second screen including the history address information in which the second value is set in the corresponding connection flag among the history address information stored in the memory is displayed on the display.
The program according to claim 6, wherein the mobile terminal executes the first reception process while the second screen is displayed on the display. The program according to claim 7, wherein in the second display process, the second screen including the address information assigned to the communication interface is displayed on the display. The program is used in the second search process.
A second determination of whether or not the historical address information that matches the address information input received in the first reception process and has the second value set in the corresponding connection flag is stored in the memory. 3 Judgment processing and
In response to the determination that the memory is not stored in the third determination process, the mobile terminal is made to execute the second transmission process.
The program according to claim 7 or 8, wherein the second transmission process is not executed in response to the determination that the memory is stored in the third determination process. The program
In the second setting process, the time information indicating the execution time of the second setting process is stored in the memory in association with the history address information.
In the second search process,
A fourth judgment process for determining whether or not the elapsed time from the time indicated by the corresponding time information is equal to or longer than the threshold time according to the determination that the time is stored in the third judgment process.
In response to the determination in the fourth determination process that the time is equal to or longer than the threshold time, the mobile terminal is made to execute the second transmission process.
The program according to claim 9, wherein the second transmission process is not executed in response to the determination that the time is less than the threshold time in the fourth determination process. The memory stores mode information in which a third value corresponding to permitting or a fourth value corresponding to not permitting communication with an external device connected to the communication network is set in the communication interface. And
The program
After executing the first search process, the mobile terminal is made to execute the fifth determination process for determining the set value of the mode information.
Depending on the determination that the image processing device was not detected in the first determination process and the determination that the image processing device is the fourth value in the fifth determination process, the set value of the mode information is set from the fourth value. The program according to any one of claims 2 to 10, wherein the mobile terminal is made to execute the switching process for switching to the third value prior to the second transmission process. The memory stores mode information in which a third value corresponding to permitting or a fourth value corresponding to not permitting communication with an external device connected to the communication network is set in the communication interface. And
The program
After executing the first search process, the mobile terminal is made to execute the fifth determination process for determining the set value of the mode information.
The mobile terminal is made to execute the second search process in response to the determination that the image processing device was not detected in the first determination process and the determination that the image processing device is the third value in the fifth determination process. ,
According to the determination that the image processing apparatus was not detected in the first determination process and the determination that the fourth value is obtained in the fifth determination process.
Switching processing for switching the set value of the mode information from the fourth value to the third value, and
The program according to any one of claims 2 to 10, wherein the mobile terminal is made to execute the first search process again after executing the switching process. A program that can be executed by a mobile terminal equipped with a communication interface and memory.
The program
In the communication network to which the communication interface is connected, the first search process for searching an image processing device capable of executing an image processing operation by the first method, and
The first determination process for determining whether or not the image processing device is detected in the first search process, and
A second search process for searching the image processing device by a second method different from the first method in response to the determination that the image processing device was not detected in the first determination process.
A first storage process for storing device information for identifying the image processing device detected in the first search process or the second search process in the memory as designated device information.
The image processing device identified by the designated device information stored in the memory causes the mobile terminal to execute an operation instruction process for transmitting operation instruction information instructing execution of the image processing operation through the communication interface. program. Communication interface and
Input interface and
With memory
A mobile terminal equipped with a controller
The controller
In the communication network to which the communication interface is connected, the first search process for searching an image processing device capable of executing an image processing operation by the first method, and
The first determination process for determining whether or not the image processing device is detected in the first search process, and
A second search process for searching the image processing device by a second method different from the first method in response to the determination that the image processing device was not detected in the first determination process.
A first storage process for storing device information for identifying the image processing device detected in the first search process or the second search process in the memory as designated device information.
The operation instruction processing for transmitting the operation instruction information instructing the execution of the image processing operation to the image processing device identified by the designated device information stored in the memory is executed through the communication interface.
The controller
In one of the first search process and the second search process,
The first transmission process of broadcasting the transmission request information requesting the transmission of the device information to the communication network through the communication interface, and
As a response to the transmission request information transmitted in the first transmission process, the first reception process of receiving the device information from the image processing device through the communication interface is executed.
In the other of the first search process and the second search process,
A first reception process that accepts a user operation for inputting address information that identifies the image processing device in the communication network through the input interface.
A second transmission process of unicasting the transmission request information to the image processing device identified by the address information received in the first reception process through the communication interface.
As a response to the transmission request information transmitted in the second transmission process, a second reception process of receiving the device information from the image processing device through the communication interface is executed.
In the first determination process, a mobile terminal that determines whether or not the device information has been received before the first time elapses after the transmission request information is transmitted in the first search process.

Images