JP2017046282A - Scanner, control program of scanner, and communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scanner and the like which can communicate various kinds of data.SOLUTION: A scanner includes: first determination means that determines whether or not a scan program stored in a storage unit and read request information of a file which is indicated by second information have been received from an information processing device by a second communication; first transmission means that transmits the scan program and second information to the information processing device by the second communication; second determination means that determines whether or not scan instruction information has been received from the information processing device via a communication interface by first communication; scan processing means that, in response to the determination that the scan instruction information has been received by the second determination means, executes scan processing and generates image data; and transmission means that transmits the image data generated by the scan processing means to the information processing device by the first communication.SELECTED DRAWING: Figure 1

Description

  The technology disclosed in the present specification relates to a scanner or the like that can communicate various data.

  Patent Document 1 discloses the following technique. The scanner and the information processing apparatus are connected by USB (abbreviation of Universal Serial Bus). A scan program is stored in the scanner storage. The information processing apparatus executes a scan program read from the scanner storage. Thereby, cooperation between the scanner and the information processing apparatus becomes possible.

JP 2010-87662 A

  In some cases, the scanner and the information processing apparatus are connected via a LAN (abbreviation of Local Area Network) instead of USB. In such a case, since the scan program of Document 1 cannot recognize the network address used in the LAN communication performed between the scanner and the information processing apparatus, the information processing apparatus stores the scan program stored in the scanner storage. Even if it is acquired and executed, there is a possibility that cooperation using the LAN cannot be performed between the scanner and the information processing apparatus. In this specification, the technique which can eliminate such inconvenience is provided.

  (1) A scanner described in the present specification performs a communication interface capable of executing first communication and second communication with an information processing apparatus, a storage unit, and scan processing for reading a document. The scanner includes an image generation unit that generates image data and a control unit. The storage unit stores first information, and the communication interface performs first communication with the first information. Necessary for this, and individual identification information for identifying an individual scanner, and the storage unit stores a scan program that can be executed by the information processing apparatus, and second information. Is file identification information for identifying a file including the first information, the first communication is communication based on the address information included in the first information, and the second communication is a file Sharing pro Communication based on the network, the scan program is a program that can be executed by the information processing apparatus, and is a program for controlling scan processing executed by the scanner, and the control unit stores the scanner in the storage unit. First determination means for determining whether or not the read request information of the file indicated by the stored scan program and second information has been received from the information processing apparatus by the second communication via the communication interface; A first transmission unit configured to transmit the scan program and the second information to the information processing apparatus by the second communication via the communication interface in response to determining that the read request information is received by the determination unit; After transmitting the program to the information processing apparatus, the scan instruction information is sent via the communication interface to the first Second determination means for determining whether or not the information has been received from the information processing apparatus by communication, and generating image data by executing scan processing in response to determination that the second determination means has received the scan instruction information And a scan processing unit that transmits the image data generated by the scan processing unit to the information processing apparatus through the communication interface via the first communication.

  According to the above configuration, communication can be appropriately executed between the scanner and the information processing apparatus by using the first and second communications. As a result, it is possible to execute scan processing with the scanner to generate image data and transmit the generated image data to the information processing apparatus.

  (2) Preferably, in the scanner described in this specification, the storage unit stores the first information in the first area of the storage unit, and the communication interface accesses the first area and The first communication is performed using one information, and the storage unit stores the scan program and the first information copied from the first region in the second area of the storage unit. File identification information for identifying a file including the first information stored in the second area, and the control unit includes: a receiving unit that receives a change instruction input that instructs the scanner to change the first information; In response to accepting the change instruction input, a change means for changing the first information stored in the first area, a third determination means for determining whether or not the first information has been changed, and a third determination Means that the first information was determined to have been changed Depending on, on the second region, and further comprising a storage control means for copying the first information that has changed, the.

  According to the above configuration, the updated first information can be always acquired by the information processing apparatus. Thereby, it is possible to appropriately perform communication between the scanner and the information processing apparatus.

  (3) Preferably, in the scanner described in this specification, the scan program is a program that causes the information processing apparatus to execute the first detection process and the reception process when the information processing apparatus executes the scan program. The 1 detection process is a process for detecting, using the second communication, that the first information included in the file identified by the second information stored in the storage unit of the scanner has been changed. , A process executed using the second communication in response to the first detection process detecting that the first information included in the file identified by the second information has been changed, and the first information The information processing apparatus receives the first information included in the file identified by the two information.

  According to the above configuration, the information processing apparatus can detect that the predetermined information stored in the scanner has been changed. In response to the detection of the predetermined information, the information processing apparatus can receive the predetermined information. As a result, the information processing apparatus can always have the latest predetermined information.

  (4) Preferably, in the scanner described in the present specification, the first detection process uses the second communication, and the last update of the file identified by the second information stored in the storage unit of the scanner Date and time information reception processing received from the scanner, including the latest update date and time of the scan program executed in the information processing apparatus, and the last update date and time of the file identified by the second information received in the date and time information reception processing; Is a process for detecting that the first information included in the file identified by the second information stored in the storage unit has been changed.

  According to the above configuration, it is possible to appropriately detect whether the second information has been changed.

  (5) Preferably, in the scanner described in this specification, the scan program is a program that causes the information processing apparatus to execute a second detection process and a standby process when the information processing apparatus executes the scan program. The second detection process is a process for detecting that communication with the scanner using the second communication is executable, and the standby process is a process for detecting communication with the scanner using the second communication. This is a process of waiting until communication with the scanner using the second communication becomes possible again when the connection is cut off in response to the fact that the second detection process has detected that the execution cannot be performed. In the processing, it is detected by the second detection processing that communication with the scanner using the second communication is possible again, and is included in the file identified by the second information stored in the storage unit First The second information for identifying the file including the first information after the change is acquired by using the second communication in response to the fact that the information is changed by the first detection process. And

  According to the above configuration, it is possible to cause the information processing apparatus to check whether communication with the scanner using the second communication can be executed. Then, the information processing apparatus can be put on standby until communication using the second communication becomes possible again. This makes it possible to reliably execute communication between the scanner and the information processing apparatus.

  (6) Preferably, the scanner described in this specification performs the third detection process, the scan instruction information transmission process, and the interruption process when the scan program is executed by the information processing apparatus. The third detection process is a process for detecting whether or not start information indicating that an instruction to start the scan process has been input to the scanner has been transmitted from the scanner through the first communication. The scan instruction information transmission process is a process of transmitting the scan instruction information to the scanner by the first communication in response to the fact that the start information has been transmitted is detected by the third detection process. The interruption process is performed when the second detection process detects that communication with the scanner using the second communication cannot be performed. In the reception process, the first information included in the file identified by the second information stored in the storage unit is changed after the execution of the third detection process is interrupted by the interruption process. If it is determined in the first detection process that it has not been performed, the execution of the third detection process is resumed.

  According to the above configuration, when the first information is not changed when the communication between the information processing apparatus and the scanner is restored from the impossible state, the communication setting before the interruption is taken over. The communication can be resumed. It becomes possible to reduce the processing load when resuming communication.

  (7) Preferably, in the scanner described in this specification, the second detection process includes a trial process for trying to confirm whether the scan program is stored in the storage unit of the scanner, When it is not possible to confirm that the data is stored in the storage unit of the scanner, it is detected that communication with the scanner using the second communication cannot be performed.

  According to the above configuration, the information processing apparatus can appropriately determine whether or not communication with the scanner can be performed by checking whether or not the scan program is stored in the storage unit of the scanner. .

  (8) Preferably, in the scanner described in this specification, the first transmission unit further transmits execution instruction information for instructing the information processing apparatus to execute the scan program to the information processing apparatus by the second communication. It is characterized by doing.

  According to the above configuration, the scanner can instruct the information processing apparatus to execute the scan program. As a result, the information processing apparatus can appropriately execute the scan program.

  (9) Preferably, in the scanner described in this specification, the scan program stored in the storage unit is a program described in a language independent of an operating system that controls the information processing apparatus. And

  According to the above configuration, it is possible to cause the information processing apparatus to execute the scan program without depending on the operating system installed in the information processing apparatus.

  (10) Preferably, the scanner described in this specification is characterized in that the scan program stored in the storage unit is a program described in Java (registered trademark) language.

  According to the above configuration, it is possible to cause the information processing apparatus to execute the scan program without depending on the program language describing the scan program.

  (11) Preferably, in the scanner described in this specification, the first information includes setting information indicating the contents of various settings related to scan processing, and the scan instruction information generated by the information processing apparatus is And generated based on setting information.

  According to the above configuration, it is possible to cause the information processing apparatus to generate scan instruction information based on the setting information stored in the scanner.

  (12) Preferably, in the scanner described in this specification, the first information is included in the scan program, and the storage control unit is included in the scan program stored in the second area. The first information is rewritten with the changed first information.

  According to the above configuration, the latest first information can be included in the scan program.

  (13) Preferably, in the scanner described in this specification, the first information is stored in the second area of the storage unit as a specific file separate from the scan program, and the first information and the scan program Is associated so that the first information can be read from the scan program, and the storage control means rewrites the specific file stored in the second area with the changed first information. Features.

  According to the above configuration, the latest first information can be written in a specific file separate from the scan program.

  A control method for realizing the scanner and a computer-readable recording medium storing the computer program are also new and useful.

1 is a diagram illustrating an electrical configuration of a communication system 1. FIG. 3 is a flowchart showing the operation of the MFP. It is a flowchart explaining the content of an IP / setting change monitoring task. It is a flowchart explaining the operation | movement content of a push scan monitoring program. It is a flowchart explaining the operation | movement content of a push scan monitoring program. It is a flowchart explaining the operation | movement content of a push scan monitoring thread | sled. It is a flowchart explaining the operation content of a scan program. It is a flowchart explaining the operation content of a scan program.

<Configuration of communication system>
FIG. 1 shows an electrical configuration of a communication system 1 exemplified as the first embodiment according to the present application. The communication system 1 includes a personal computer (hereinafter also referred to as PC) 9, a multifunction peripheral device (hereinafter also referred to as MFP) 51, and an access point 93. The MFP 51 has a printer function, a scanner function, a copy function, a facsimile function, and the like.

<Configuration of PC9>
A PC (abbreviation for personal computer) 9 includes a CPU (abbreviation for central processing unit) 10, a ROM (abbreviation for read only memory) 11, a RAM (abbreviation for random access memory) 12, a display unit 13, an operation unit 14, and a storage unit. 15, a USB host interface unit (referred to as a USB host IF unit in FIG. 1) 16, a network interface unit (referred to as a network IF unit in FIG. 1) 17, a wireless transmission / reception unit 26, and a wireless antenna unit 27. .

  The CPU 10 controls each unit of the PC 9 by executing a program stored in the ROM 11 or the storage unit 15. The ROM 11 stores programs executed by the CPU 10 and data. The RAM 12 is used as a main storage device for the CPU 10 to execute various processes. The display unit 13 includes a display device such as a liquid crystal display, a display drive circuit that drives the display device, and the like. The operation unit 14 includes a keyboard, a mouse, an interface to which they are connected, and the like. The storage unit 15 is a device that stores various programs and data using a nonvolatile memory such as a hard disk or a flash memory. The storage unit 15 stores programs such as an operating system (referred to as OS) 21 and a file manager program 22. The OS 21 is a program for managing the entire PC 9. An example of the OS 21 is Windows (registered trademark of Microsoft Corporation). The file manager program 22 is a computer program that provides a user interface for handling a file system. The file manager program 22 is a program that performs processing such as moving, copying, deleting, renaming, and searching for files. An example of the file manager program 22 is Explorer (registered trademark of Microsoft Corporation). The USB host interface unit 16 includes a USB host controller (not shown), a jack (not shown) to which a USB cable is connected, and the like. The network interface unit 17 is a part that communicates with the MFP 51 via the LAN 18. The wireless transmission / reception unit 26 is a part that performs wireless communication 95 with the access point 93 via the wireless antenna unit 27.

<Configuration of MFP 51>
The MFP 51 includes a printer 19, a scanner 20, a control unit 30, a storage unit 35, a wireless transmission / reception unit 36, a wireless antenna unit 37, a button input unit 38, a panel 39, a modem 40, a telephone line connection unit 41, a USB interface unit (FIG. 1). In FIG. 1, a USB interface unit (referred to as a LAN_IF unit) 43 and a LAN interface unit (referred to as a LAN_IF unit in FIG. 1) 43 are mainly provided. These components can communicate with each other via the input / output port 44. The control unit 30 includes a CPU 32, a ROM 33, and a RAM 34 connected by a bus. The ROM 33 stores various programs. The CPU 32 executes a program stored in the ROM 33. The RAM 34 is a volatile memory.

  The storage unit 35 is a device that stores various programs and data using a nonvolatile memory such as a hard disk or a flash memory. The storage unit 35 includes an OS 61, a CIFS storage area 62, a communication setting storage area 84, and a scan setting storage area 88. The OS 61 is a program for managing the entire MFP 51.

  An IP address 86 is stored in the communication setting storage area 84. The IP address 86 is information for identifying the MFP 51 on the network. The IP address 86 is information necessary for executing the first communication via the LAN 18. The first communication will be described later. The IP address 86 may change dynamically. For example, the IP address 86 is assigned to the MFP 51 by a DHCP server (not shown), or the user inputs the IP address 86 via the button input unit 38.

  Scan setting information 89 is stored in the scan setting storage area 88. The scan setting information 89 is information indicating various settings when the scanner 20 performs a scan process. The scan setting information 89 is input, for example, when the user operates the button input unit 38. Examples of settings indicated by the scan setting information 89 include resolution, number of color bits, image size, data format, and the like.

  The CIFS storage area 62 is a part of the storage area in the storage unit 35. The CIFS storage area 62 can be accessed from an external device via a network by communication conforming to the CIFS (Common Internet File System) protocol. The CIFS protocol is a file sharing protocol. The CIFS protocol is a protocol that allows file sharing using a Windows OS, a type of OS other than the Windows OS, or an application outside the network. A program for network communication using the CIFS protocol is standardly installed in a Windows OS such as the OS 21. Also, the OS 61 of the MFP 51 is loaded with a program for network communication using the CIFS protocol. That is, the PC 9 can access a file stored in the CIFS storage area 62 using the CIFS protocol and read the file. When the PC 9 accesses a file stored in the CIFS storage area 62 of the MFP 51, the OS 61 of the MFP 51 operates as a CIFS server, and the OS 21 of the PC 9 operates as a CIFS client.

  The CIFS storage area 62 stores a push scan monitoring program 81, a scan program 82, first attribute information 101, and second attribute information 102. The push scan monitoring program 81 and the scan program 82 are programs that can be executed by the PC 9. The push scan monitoring program 81 is a program for the PC 9 to monitor whether the MFP 51 has started a push scan. The scan program 82 is a program for instructing the MFP 51 from the PC 9 to execute scan processing. The push scan monitoring program 81 and the scan program 82 are programs written in a language (eg, Java (registered trademark) language) independent of the operating system that controls the PC 9.

  The push scan monitoring program 81 includes IP address information 91 and scan setting information 111. The IP address information 91 is information obtained by copying the IP address 86 stored in the communication setting storage area 84 to the push scan monitoring program. The scan setting information 111 is information obtained by copying the scan setting information 89 stored in the scan setting storage area 88. The “information obtained by copying the IP address 86 into the program” may take various forms. The IP address 86 may be physically copied to the program in the form of hard coding as the IP address information 91, or information indicating the file path indicating the storage area where the IP address 86 is stored is the IP address information 91. The program may be hard-coded. When a read instruction is given from the external device to the file path indicating the storage area in which the IP address 86 is stored by communication using the CIFS protocol, the CPU 32 reads the IP address 86 from the storage area and reads the read IP address. 86 is transmitted to the external device by communication using the CIFS protocol. The same applies to “information obtained by copying the scan setting information 89 into the program”.

  The scan program 82 includes IP address information 92 and scan setting information 112. The IP address information 92 is information obtained by copying the IP address 86 stored in the communication setting storage area 84 to the scan program 82. The scan setting information 112 is information obtained by copying the scan setting information 89 stored in the scan setting storage area 88 to the scan program 82.

  The first attribute information 101 includes a program name and a time stamp as various information related to the push scan monitoring program 81. The program name is information for identifying the push scan monitoring program 81. In other words, the program name is information for identifying a file containing an IP address. The time stamp is information indicating the date and time when the push scan monitoring program 81 was last updated.

  The second attribute information 102 includes a program name and a time stamp as various information related to the scan program 82. Since the content of the second attribute information 102 is the same as the content of the first attribute information 101 described above, description thereof is omitted here.

  The LAN interface unit 43 is a part that communicates with the PC 9 via the LAN 18. The LAN interface unit 43 can execute the first communication and the second communication with the PC 9. The first communication is communication based on the IP protocol, and transmits either the IP address information 91 stored in the push scan monitoring program 81 or the IP address information 92 stored in the scan program 82. First, various information is transmitted from the PC 9 to the MFP 51, and various information is transmitted from the MFP 51 to the PC 9 using the IP address 86 stored in the communication setting storage area 84 as a transmission source. The second communication is communication performed based on the above-described CIFS protocol with the MFP 51 serving as a CIFS server and the PC 9 serving as a CIFS client.

  The USB interface unit 42 is a part that performs USB communication. The wireless transmission / reception unit 36 is a part that performs wireless communication 94 with the access point 93 via the wireless antenna unit 37. The button input unit 38 is a key for executing each function of the first MFP 51. The button input unit 38 may be configured integrally with the panel 39 as a touch panel. The panel 39 displays various images. The printer 19 is a part that executes printing on printing paper. The scanner 20 is a part that scans a paper document and generates image data. The modem 40 modulates manuscript data to be transmitted by the facsimile function into a signal that can be transmitted to the telephone line network 100 and transmits it via the telephone line connection unit 41, or from the telephone line network 100 via the telephone line connection unit 41. Is received and demodulated into document data.

<Operation of MFP (part 1)>
The operation of the MFP 51 will be described using the flow of FIG. When the MFP 51 is turned on, the flow of FIG. 2 starts. In S10, the CPU 32 of the MFP 51 generates an IP / setting change monitoring task. This IP / setting change monitoring task is a task that remains resident as it is started, and operates in parallel with the processing from S15 onward.

<IP / setting change monitoring task>
The contents of the IP / setting change monitoring task will be described with reference to FIG. In S <b> 110, the CPU 32 reads the IP address 86 stored in the communication setting storage area 84 and the scan setting information 89 stored in the scan setting storage area 88. The IP address 86 is information set for the MFP 51 and is information for identifying the MFP 51 on the IP network.

  In S <b> 115, the CPU 32 performs a process of embedding the IP address 86 read in S <b> 110 and the scan setting information 89 in the push scan monitoring program 81 stored in the CIFS storage area 62. Specifically, the IP address 86 read in S110 is overwritten and copied to the IP address information 91 included in the push scan monitoring program 81. In S115, the CPU 32 overwrites and copies the scan setting information 89 read in S110 to the scan setting information 112 included in the scan program 82.

  In S <b> 120, the CPU 32 performs a process of embedding the IP address 86 and the scan setting information 89 read in S <b> 110 in the scan program 82 stored in the CIFS storage area 62. The specific processing content is the same as S115.

  In S <b> 125, the CPU 32 determines whether the IP address or scan setting set in the MFP 51 has been changed. Specifically, it is detected whether or not the IP address 86 stored in the communication setting storage area 84 or the scan setting information 89 stored in the scan setting storage area 88 has been changed. When a negative determination is made (S125: NO), the process returns to S125, and when an affirmative determination is made (S125: YES), the process returns to S110.

<Operation of MFP (part 2)>
Returning to FIG. 2, the description of the operation of the MFP will be continued. In S15, the CPU 32 generates a first server task. The first server task is a task for providing a server function to the PC 9. The first server task executes processing based on various instructions transmitted from the PC 9.

<CIFS server task>
In S20, the CPU 32 generates a CIFS server task. The CIFS server task is a resident task that is executed using the second communication based on the CIFS protocol, and operates in parallel with the processing from S20 onward.

  By executing the CIFS server task in the MFP 51 and the CIFS client program and the file manager program 22 provided in the OS 21 of the PC 9, the user of the PC 9 changes the file stored in the CIFS storage area 62 of the MFP 51 to the file manager provided in the PC 9. Using the program 22, it is possible to perform the same operation as a file stored in the PC 9. This will be specifically described below.

  The setting area of the storage unit 35 of the MFP 51 stores a push scan monitoring program file name and a scan program file name corresponding to the push scan monitoring program 81 and the scan program 82 stored in the CIFS storage area 62. Note that the program file name of each program includes an extension indicating that the file is a program file. The extension indicating the program file is an OS-independent extension that is commonly used by a plurality of OSs. Of course, it may be an extension used by Windows or an OS other than Windows. Examples of extensions indicating program files that are commonly used by a plurality of OSs are “class”, “pl”, “exe”, and the like.

  The user of the PC 9 activates the file manager program 22 of the PC 9 by operating the operation unit 14 via the operation unit 14, and the user further converts the CIFS storage area 62 of the MFP 51 into the CIFS client program via the file manager program 22. When the mount operation is performed, the file manager program 22 requests the MFP 51 to return the file name stored in the CIFS storage area 62 of the MFP 51 through the second communication via the CIFS client program. Upon receiving the request, the CIFS server task of the MFP 51 refers to the setting area of the storage unit 35 and transmits the push scan monitoring program file name, the scan program file name, and the autorun instruction file name to the PC 9 by the second communication. To do. Details of the auto-run instruction file name will be described later. The file manager program 22 acquires each file name via the CIFS client program and displays it on the display unit 13 together with a file icon with each file name.

  Even when the file manager program is started with the CIFS storage area 62 mounted on the CIFS client program, the file manager program 22 requests the MFP 51 to return a file name. The mounting of the CIFS storage area 62 to the CIFS client program may be performed by the automount function of the OS 21.

  When the user of the PC 9 performs an operation such as double-clicking a file icon via the operation unit 14, the file manager program 22 displays instruction information for requesting reading of the file corresponding to the double-clicked file icon as CIFS client. This is transmitted to the MFP 51 by the second communication via the program.

  Upon receiving the request, the CIFS server task of the MFP 51 refers to the setting area of the storage unit 35 and reads the file requested to be read. When the instruction information requesting reading of the scan program file is received, the scan program 82 is read. Then, the CIFS server task of the MFP 51 transmits the scan program 82 to the PC 9 by the second communication. Here, the file manager program 22 recognizes that the file name assigned to the double-clicked file icon includes an extension indicating that the file is a program file. When the file manager program 22 acquires the scan program 82 via the CIFS client program, the file manager program 22 causes the scan program 82 to be executed.

  Note that the CPU 32 of the MFP 51 reads out the program existing in the CIFS storage area 62, transmits it to the PC 9, and executes it by the CPU 10 of the PC 9, such as “CPU 10 reads out and executes the program in the CIFS storage area 62”. And for convenience.

  Here, the autorun instruction file name will be described. The CIFS storage area 62 of the storage unit 35 stores an autorun instruction file name corresponding to the autorun instruction file. The auto-run instruction file name is a file name indicating an auto-run instruction file used in the Windows OS. Of course, it may be a file name used not only by Windows but also by an OS other than Windows. An example of a file name indicating the auto-run instruction file is “autorun.inf”. In this embodiment, the push scan monitoring program file name is written in the autorun instruction file.

  When the file name received by the CIFS client program includes the autorun instruction file name, the OS 21 does not require an operation such as a double click by the user, and sends instruction information for requesting reading of the autorun instruction file to the MFP 51. Send. The CIFS server task of the MFP 51 that has received the request refers to the setting area of the storage unit 35 and reads the autorun instruction file. Then, the CIFS server task of the MFP 51 transmits the autorun instruction file to the PC 9 by the second communication. When the OS 21 acquires the autorun instruction file, the OS 21 transmits instruction information for requesting reading of the program file written in the autorun instruction file to the MFP 51, and executes the program read and returned by the MFP 51. That is, in this embodiment, the OS 21 acquires the autorun instruction file in which the push scan monitoring program file name is written, so that the push scan monitoring program 81 in the CIFS storage area 62 can be operated by the user to the file manager program 22. Read and execute without making it mandatory. Execution that does not require user operation may be rephrased as automatic execution.

  Of course, even when the user of the PC 9 performs an operation of double-clicking the push scan monitoring program file name via the file manager program 22, the file manager program 22 acquires the push scan monitoring program 81 from the MFP 51, The push scan monitoring program 81 can be executed.

  When the push-run monitoring program 81 is automatically executed by the auto-run instruction file, in order to make it easy for the user to recognize a program that requires an operation, the scan program 82 includes “double-click OK: scan program.exe”, etc. A file name suggesting an operation from the user may be associated.

  In this embodiment, the IP address information 91 and the scan setting information 111 included in the push scan monitoring program 81 are also transmitted to the PC 9. Further, the IP address information 92 and the scan setting information 112 included in the scan program 82 are also transmitted to the PC 9.

<Operation of MFP (3)>
Returning to FIG. 2, the description of the operation of the MFP will be continued. In S25, the CPU 32 determines whether or not an IP address change instruction has been input. Specifically, it is determined whether a new IP address has been assigned from a DHCP server (not shown) or a new IP address has been input via the button input unit 38. When a negative determination is made (S25: NO), the process proceeds to S40, and when an affirmative determination is made (S25: YES), the process proceeds to S30. In S <b> 30, the CPU 32 updates the IP address 86 stored in the communication setting storage area 84.

  In S40, the CPU 32 determines whether or not push scan instruction information has been input. The push scan instruction information is information for instructing to read an original set on the scanner 20 to generate image data and to transmit it to the PC 9. The push scan instruction information is input by the user via the button input unit 38, for example. The push scan instruction information also includes information indicating the contents of image data processing. The image data processing is processing performed by the PC 9. The content of the image data processing can be selected by the user. Examples of the contents of the image data processing include file storage, application processing, file transmission, and mail attachment.

  File saving is a process of saving the generated image data in the storage unit 15 of the PC 9. The application process is a process for transferring the generated image data to a predetermined application provided in the PC 9 via the push scan monitoring program 81. The application may be an application that processes the transferred image data, or may be an application that transmits the transferred image data to another device. File transmission is a process of transmitting the generated image data from the PC 9 to the external storage apparatus connected to the PC 9 via the push scan monitoring program 81. The external storage device may be a cloud storage connected to the Internet. The file transmission may be a process of transferring the generated image data to the file transmission application provided in the PC 9 via the push scan monitoring program 81. The mail attachment is a process in which the generated image data is attached to a mail via the push scan monitoring program 81 and transmitted from the PC 9. The mail attachment may be a process of transferring the generated image data to a mail application provided in the PC 9 via the push scan monitoring program 81.

  If a negative determination is made in S40 (S40: NO), the process proceeds to S50, and if a positive determination is made (S40: YES), the process proceeds to S45. In S45, the CPU 32 transmits push scan request information to the PC 9. The push scan request information is transmitted by the first communication based on the IP address. The push scan request information is information indicating that push scan instruction information has been input to the MFP 51. The push scan request information includes the contents of the push scan instruction information. When the push scan request information is received by the communication program for performing the first communication provided in the PC 9, the push scan request information is transferred to the push scan monitoring program 81 executed in the PC 9.

  In S50, the CPU 32 determines whether scan instruction information has been received from the PC 9. The scan instruction information is information for instructing the MFP 51 to execute a scan process. That is, the scan instruction information is pull scan execution instruction information. The scan instruction information is transmitted by the first communication based on the IP address. The scan instruction information is information transmitted from the PC 9 in S345 described later. The scan instruction information is received by the first server task generated in S15. If a negative determination is made in S50 (S50: NO), the process returns to S25, and if an affirmative determination is made (S50: YES), the process proceeds to S55. The scan instruction information is transmitted from the scan program 82 executed on the PC 9 to the MFP 51 via a communication program for performing the first communication provided in the PC 9. Note that the scan instruction information may be equivalent to the scan instruction information transmitted to the MFP 51 when the PC 9 executes a general scanner driver (not shown).

  In S55, the CPU 32 causes the scanner 20 to execute a scanning process. Thereby, image data can be generated. In S60, the CPU 32 transmits the image data to the PC 9. The image data is transmitted by the first communication. Then, the process returns to S25.

<Operation of Push Scan Monitoring Program 81>
The operation content of the push scan monitoring program 81 will be described using the flow of FIG. In S210, the CPU 10 acquires a path in which the original file of the push scan monitoring program 81 itself is stored. That is, the path of the CIFS storage area 62 of the MFP 51 is acquired. Specifically, the combination of the server name of the MFP 51 as the CIFS server and the folder path of the CIFS storage area 62 is acquired. As an example of such a combination, “HYPERLINK“ ¥¥¥¥ MFP51 ¥¥ ScanFolder ¥¥ ”¥¥ MFP51 ¥ ProgramFolder ¥ Scan” may be mentioned. In this case, “¥¥ MFP51” is the server name, and HYPERLINK “¥¥¥¥ MFP51 ¥¥ ScanFolder ¥¥” “ProgramFolder ¥ Scan” is the folder path. In S <b> 212, the CPU 10 acquires the last update date and time of the push scan monitoring program 81 developed in the RAM 12 of the PC 9 and temporarily stores it in the storage unit 15. Note that the push scan monitoring program 81 inquires the OS 9 about the path where the original file is stored, and acquires the path output by the OS 9. Alternatively, if the push scan monitoring program 81 is a C language program compliant with POSIX (Portable Operating System Interface), the push scan monitoring program 81 itself is obtained by applying the path information in the first argument of the process to the realpath function. The path where the original file is stored may be obtained.

  In S215, the CPU 10 starts up a push scan monitoring thread (FIG. 6). The processing content of the push scan monitoring thread will be described later.

  In S220, the CPU 10 executes trial processing. The trial process is a process of trying whether or not it is possible to confirm that the original file of the push scan monitoring program 81 developed in the RAM 12 of the PC 9 is stored in the CIFS storage area 62 of the MFP 51. The trial process is executed using the second communication based on the CIFS protocol. Specifically, an attempt is made to open the target file in the READ mode. When the trial process is successful (S220: Success), it can be determined that communication with the MFP 51 using the second communication based on the CIFS protocol is executable. Then, the process proceeds to S260.

  In S260, the CPU 10 determines that the IP address information 91 or the scan setting information 111 included in the push scan monitoring program 81 stored in the CIFS storage area 62 is included in the currently executed push scan monitoring program 81. It is determined whether the address information 91 or the scan setting information 111 has been changed to a different value. Specifically, the first attribute information 101 stored in the CIFS storage area 62 is acquired using the second communication based on the CIFS protocol. Then, the last update date and time of the push scan monitoring program 81 stored in the CIFS storage area 62 is read from the first attribute information 101. Then, it is determined whether or not the last update date and time read from the first attribute information 101 matches the last update date and time temporarily stored in S212. If they do not match, the IP address information 91 or the scan setting information 111 included in the push scan monitoring program 81 stored in the CIFS storage area 62 is included in the currently executed push scan monitoring program 81. It can be determined that the IP address information 91 or the scan setting information 111 has been changed to a different value.

  When a negative determination is made in S260 (S260: NO), the process proceeds to S262. In S262, the CPU 10 waits for a predetermined time (eg, 1 second). Then, the process returns to S220. On the other hand, when a positive determination is made in S260 (S260: YES), the process proceeds to S265. In S265, the CPU 10 outputs end request information to the push scan monitoring thread activated in S215.

  In S <b> 270, the CPU 10 replaces the process of the push scan monitoring program 81 being executed with the process of the push scan monitoring program 81 stored in the CIFS storage area 62. Specifically, the CPU 10 executing the push scan monitoring program 81 reads and executes the push scan monitoring program 81 stored in the CIFS storage area 62, and ends the executed push scan monitoring program 81. The program of the process after replacement has the same program path as the process before replacement. However, the process program after the replacement is the program updated in S115. Therefore, the algorithm of the process after replacement is the same as the algorithm of the process before replacement. The IP address information 91 used in the process after replacement is different from the IP address information 91 used in the process before replacement, or the scan setting information 111 used in the process after replacement is used in the process before replacement. This is different from the scan setting information 111 that has been stored. Both the IP address information 91 and the scan setting information 111 may be different.

  On the other hand, if the trial process fails in S220 (S220: failure), it can be determined that communication with the MFP 51 using the second communication based on the CIFS protocol is not executable. An example of such a determination is when the LAN 18 cable is disconnected. Then, the process proceeds to S225 (FIG. 5).

  In S225, the CPU 10 outputs suspend request information to the push scan monitoring thread. The suspend request information is information for interrupting the process of the push scan monitoring thread. In S230, the CPU 10 determines whether or not it is possible to confirm again that the read source program of the push scan monitoring program 81 developed in the RAM 12 is stored in the CIFS storage area 62 of the MFP 51. If a negative determination is made (S230: NO), the process returns to S230, and if an affirmative determination is made (S230: YES), the process proceeds to S235.

  In S235, the CPU 10 determines whether or not the IP address information 91 or the scan setting information 111 included in the push scan monitoring program 81 stored in the CIFS storage area 62 has been changed. When an affirmative determination is made (S235: YES), the process proceeds to S265 (FIG. 4), and when a negative determination is made (S235: NO), the process proceeds to S240.

  In S240, the CPU 10 outputs the resume request information to the push scan monitoring thread. The resume request information is information for resuming the processing of the push scan monitoring thread. Thereby, the CIFS storage area 62 can be remounted on the screen of the file manager. In addition, the CIFS storage area 62 can be remounted with the same drive name as that used before interrupting the push scan monitoring thread in S225 (eg, D drive). The remount of the CIFS storage area 62 may be automatically performed using a mechanism called mDNS (abbreviation of Multicast Domain Name System) and ServiceDiscovery. Further, the remount may be realized using a program called Bonjour (registered trademark).

  In S245, the CPU 10 waits for a predetermined time (eg, 1 second). Then, the process returns to S220.

<Operation of push scan monitoring thread>
The operation content of the push scan monitoring thread will be described with reference to the flow of FIG. The push scan monitoring thread is a program activated in S215. The push scan monitoring thread is a program for monitoring whether or not the push scan instruction information (see S45 in FIG. 2) is transmitted from the MFP 51.

  In S415, the CPU 10 determines whether or not the termination request information issued in S265 has been received. When an affirmative determination is made (S415: YES), the push scan monitoring thread is terminated, and when a negative determination is made (S415: NO), the process proceeds to S420.

  In S420, the CPU 10 determines whether suspend request information has been received. The suspend request information is information output from the push scan monitoring program 81 in S225. If a negative determination is made (S420: NO), the process proceeds to S430. If an affirmative determination is made (S420: YES), the process proceeds to S422. In S422, the CPU 10 suspends the process of the push scan monitoring thread.

  In S425, the CPU 10 determines whether or not resume request information has been received. The resume request information is information output from the push scan monitoring program 81 in S240. If an affirmative determination is made (S425: YES), the process proceeds to S430, and if a negative determination is made (S425: NO), the process proceeds to S427. In S427, the CPU 10 determines whether or not the termination request information issued in S265 has been received. If it is determined that the termination request information issued in S265 has been received (S427: YES), the push scan monitoring thread is terminated, and if it is determined that it has not been received (S427: NO), Return to S425.

  In S430, the CPU 10 performs an inquiry process for inquiring of the MFP 51 about the presence or absence of a push scan request. That is, inquiry information for inquiring whether or not the input of push scan instruction information has been accepted by the MFP 51 is transmitted using the first communication. The MFP 51 that has received the inquiry information transmits the push scan request information to the PC 9 using the first communication if the push scan instruction information is input. In the first communication in which information is transmitted from the PC 9 to the MFP 51 by the push scan monitoring program 81, the IP address indicated by the IP address information 91 included in the push scan monitoring program 81 is used as the destination IP address. In the first communication in which information is returned from the MFP 51 to the MFP 9, the IP address is used as the source IP address.

  In S435, the CPU 10 determines whether or not push scan request information has been received. The push scan request information is information output from the MFP 51 using the first communication in S45. If a negative determination is made in S435 (S435: NO), the process proceeds to S440. In S440, the CPU 10 waits for a predetermined time (eg, 0.5 seconds). Then, the process returns to S415.

  On the other hand, when a positive determination is made in S435 (S435: YES), the process proceeds to S450. In S450, the CPU 10 reads and executes the scan program 82 stored in the CIFS storage area 62. As a result, the scan program 82 is executed in the back-end mode in S310 described later. In S455, the CPU 10 executes processing according to the push scan instruction information included in the push scan request information. Specifically, the processing indicated by the push scan instruction information is executed among file storage, application processing, file transmission, mail attachment, and the like. When the process according to the push scan instruction information is executed in S455, the process returns to S415.

<Operation of Scan Program 82>
The operation content of the scan program 82 will be described with reference to the flowcharts of FIGS. The scan program 82 can operate in two modes depending on the activation method. The scan program 82 operates in a stand-alone mode when activated by a user operation via the file manager program 22. When the scan program 82 is activated by the push scan monitoring program 81 in S450, the scan program 82 operates in the back-end mode. In S310, the CPU 10 determines the content of the activation trigger. More specifically, it is determined whether or not the push scan monitoring program 81 has been activated. When the activation trigger is not activation by the push scan monitoring program 81 (S310: NO), that is, when the activation trigger is a user operation, the process proceeds to S315. On the other hand, when the activation is performed by the push scan monitoring program 81 (S310: YES), the process proceeds to S355.

  In S355, the CPU 10 reads the IP address information 92 and the scan setting information 112 embedded in the scan program 82. These pieces of information are embedded in the scan program 82 in S120.

  In S365, the CPU 10 generates scan instruction information. The scan instruction information includes the scan setting information 112 read in S355. Then, the scan instruction information is transmitted to the MFP 51 by the first communication. The transmitted scan instruction information is received by the MFP 51 in S50 described above.

  In S367, the CPU 10 receives the image data from the MFP 51 using the first communication. The image data is transmitted by the MFP 51 in S60 described above. In S370, the CPU 10 temporarily stores the received image data in the storage unit 15. In the first communication in which information is transmitted from the PC 9 to the MFP 51 by the scan program 82, the IP address indicated by the IP address information 92 included in the scan program 82 is used as the destination IP address. In the first communication in which information is returned from the MFP 51 to the MFP 9, the IP address is used as the source IP address.

  In S375, the CPU 10 outputs information indicating that the received image data is stored in the storage unit 15 to the program that has activated the scan program 82, and ends the flow. That is, the push scan monitoring program 81 is notified that the received image data has been stored in the storage unit 15, and the flow ends. Upon receiving the notification, the push scan monitoring program 81 reads the image data stored in the storage unit 15 and executes the process of S455.

  On the other hand, if a negative determination is made in S310 (S310: NO), the process proceeds to S315. In S <b> 315, the CPU 10 displays a dialog prompting the user to input an operation on the display unit 13. At this time, the CPU 10 reads the setting value indicated by the scan setting information 112 embedded in the scan program 82 as the scan setting value, and temporarily stores it.

  In S320, the CPU 10 receives an instruction input from the user. Then, the input instruction content is determined. When the end is instructed (S320: end), the scan program 82 is ended. When setting change is instructed (S320: setting change), the scan setting value temporarily stored in S315 is changed (S325). Then, the process returns to S315. When file writing is instructed (S320: file writing), the image data generated by the scanning process is stored in the storage unit 15. Then, the process returns to S315. If cancellation is instructed (S320: cancel), a process of canceling acceptance of the scan process is executed, and the process returns to S315. If scanning is instructed (S320: scan), the process proceeds to S345.

  In S345, the CPU 10 generates scan instruction information. The scan instruction information includes a scan setting value. Then, the scan instruction information is transmitted to the MFP 51 by the first communication. The transmitted scan instruction information is received by the MFP 51 in S50 described above. In S347, the CPU 10 receives the image data from the MFP 51 using the first communication. Then, the process returns to S315.

<Effect>
According to the MFP 51 described in this specification, the specific information indicating the file including the IP address assigned to the MFP 51, the push scan monitoring program 81, and the scan program 82 are stored in the first based on the CIFS protocol. It is possible to cause the PC 9 to acquire it through the communication 2. Here, as an example of “a file including an IP address assigned to the MFP 51”, a push scan monitoring program 81 and a scan program 82 may be mentioned. Examples of the specific information include first attribute information 101 and second attribute information 102. The CIFS protocol is a protocol independent of the OS of the PC 9. Therefore, the push scan monitoring program 81, the scan program 82, and the specific information can be surely acquired by the PC 9. The PC 9 acquires the IP address of the MFP 51 using the specific information. The PC 9 can communicate the scan instruction information (S345, S365) and the image data (S347, S367) with the MFP 51 using the first communication based on the IP address. As described above, the following effects can be obtained. First, the push scan monitoring program 81 and the scan program 82 stored in the MFP 51 can be surely executed by the PC 9. Therefore, it is possible to avoid the failure of the scanning process. Second, it is possible to cause the PC 9 to execute a scan process only by executing the second communication based on the CIFS protocol between the PC 9 and the MFP 51. Since it is not necessary to install the push scan monitoring program 81 and the scan program 82 in the PC 9 in advance, the convenience for the user can be improved.

  According to the MFP 51 described in this specification, the IP address 86 stored in the communication setting storage area 84 of the MFP 51 and the scan setting information 89 stored in the scan setting storage area 88 are changed (S30). Can be detected (S125). Then, the changed IP address 86 and the scan setting information 89 can be overwritten and copied to the push scan monitoring program 81 and the scan program 82 (S115, S120). It can be acquired by the PC 9. Therefore, even when the IP address assigned to the MFP 51 changes dynamically, it is possible to cause the PC 9 to appropriately execute the scanning process. Even when the scan setting of the MFP 51 is changed, it is possible to cause the PC 9 to execute a scan process with the changed setting.

  According to the MFP 51 described in this specification, the last update date and time of the push scan monitoring program 81 and the scan program 82 stored in the CIFS storage area 62 of the MFP 51 is notified to the PC 9 using the second communication. (S260). Then, the last update date and time of the push scan monitoring program 81 and the scan program 82 executed on the PC 9 and the last update date and time of the push scan monitoring program 81 and the scan program 82 stored in the CIFS storage area 62 are stored in the PC 9. Comparison can be made (S260). If the two do not match, it can be determined that the IP address and scan setting information have been changed (S260). Then, the changed IP address and scan setting information can be received by the PC 9 (S270). Thereby, the latest IP address and scan setting information can always be acquired by the PC 9.

  According to the MFP 51 described in this specification, the PC 9 can detect whether or not the second communication based on the CIFS protocol between the PC 9 and the MFP 51 can be executed (S220). When it is detected that the second communication cannot be executed (S220: NO), the push scan monitoring thread process can be interrupted by the PC 9 until the second communication is possible again (S225). If the PC 9 detects that the IP address or the scan setting information has been changed (S235: YES) when the second communication is restored (S230: YES), the change is made. The later IP address and scan setting information can be received by the PC 9 (S270). This makes it possible to reconnect the second communication using the latest IP address and scan setting information. When the PC 9 detects that the IP address or the scan setting information has not been changed (S235: NO) when returning to the state where the second communication can be executed (S230: YES), the process is interrupted. Using the previously used IP address and scan setting information, the PC 9 can restart the push scan monitoring thread (S240). Thereby, the update process of the IP address and the scan setting information can be omitted, so that the push scan monitoring thread can be restarted quickly.

  According to the MFP 51 described in this specification, the trial process can be executed by the PC 9 (S220). The trial process is a process of trying to check whether it is possible to confirm that the read source program of the push scan monitoring program 81 developed in the RAM 12 of the PC 9 is stored in the CIFS storage area 62 of the MFP 51. If the trial process fails (S220: failure), it can be determined that the second communication based on the CIFS protocol is not executable. This makes it possible for the PC 9 to reliably determine whether the second communication can be executed.

  According to the MFP 51 described in this specification, the autorun instruction file names of the push scan monitoring program 81 and the scan program 82 can be transmitted to the PC 9. As a result, the push scan monitoring program 81 and the scan program 82 can be appropriately executed by the MFP 51.

  According to the MFP 51 described in this specification, the push scan monitoring program 81 and the scan program 82 are described in a language independent of the operating system that controls the PC 9 (for example, Java (registered trademark) language). As a result, the push scan monitoring program 81 and the scan program 82 can be executed by the PC 9 without depending on the OS installed in the PC 9.

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

<Modification>
The IP address information 91 and 92 and the scan setting information 111 and 112 are not limited to the form incorporated in the push scan monitoring program 81 and the scan program 82, but may exist as specific files separate from these programs. Good. The IP address 86 stored in the communication setting storage area 84 and the scan setting information 89 stored in the scan setting storage area 88 may be copied to the specific file. The specific file may be stored in the CIFS storage area 62. The specific file and the scan program 82 may be associated with each other. Based on this association, the specific file may be read from the scan program 82. An example of the association is a method of creating a link with a path. In S120, the IP address 86 and the scan setting information 89 may be embedded in the specific file. As a result, the changed IP address and scan setting information can be read without executing the program restart (S270).

  The determination in S260 is based on the IP address information 91 or the scan setting information 111 included in the push scan monitoring program 81 being executed, and the IP address information 92 or the scan setting information included in the scan program 82 stored in the CIFS storage area 62. 112 may be compared. This is because the IP address information 91 and the scan setting information 111 included in the push scan monitoring program 81 are updated in S115, and the IP address information 92 and the scan setting information 112 included in the scan program 82 are also updated in S120. Because.

  In the claims, the second information is defined as “file identification information for identifying a file including the first information”. This definition includes the concept that the second information itself is the first information. That is, in this embodiment, as an example of the second information, “first attribute information 101 for identifying the push scan monitoring program 81 including the IP address” or “second for identifying the scan program 82 including the IP address”. The attribute information 102 ”has been described. However, the first attribute information 101 and the second attribute information 102 may include an IP address.

  The “storage unit” recited in the claims may take various forms. That is, an example of the storage unit in the claims is not limited to the storage unit 35 in FIG. The ROM 33, the RAM 34, a buffer (not shown) in the CPU 32, and the like are examples of the storage unit in the claims.

  The CIFS storage area 62 of the MFP 51 may be operated with USB bus power. As a result, even when the MFP 51 is turned off when the PC 9 is started up, the push scan monitoring program file name, the scan program file name, the autorun instruction file name, and the program file can be received.

  In this embodiment, the IP address is used as an example of the first information in the claims, but the present invention is not limited to this form. The first information may be various information such as a USB serial number.

  Although the form which performs 1st communication and 2nd communication via LAN18 was demonstrated, it is not restricted to this form. The first communication and the second communication may be performed via the wireless communication 94 and 95.

  Further, an example has been described in which each process of the present invention is realized by the CPUs 10 and 32 executing various programs stored in the storage units 15 and 35 in the PC 9 and the MFP 51 of the above-described embodiment. However, the configuration of the control unit is not limited to this, and part or all of the configuration may be realized by hardware such as an integrated circuit (also referred to as an IC (Integrated Circuit)).

  Furthermore, the present invention can be realized not only as the PC 9 and the MFP 51 but also as a program for causing the PC 9 and the MFP 51 to execute processing. Then, the program may be provided by being recorded 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 PC 9 and the MFP 51 through a communication network, in addition to a CD-ROM, a DVD-ROM, and the like. And the program memorize | stored in the memory | storage part of the server may be distributed through communication networks, such as the internet, as the information or signal which shows the said program.

<Notes in this specification>
Note that “data” and “information” in this specification are common in that they are bits or bit strings that can be handled by a computer. “Data” refers to data that can be handled by the computer without taking into account the meaning of each bit. On the other hand, “information” refers to information that the operation of the computer branches depending on the semantic content indicated by each bit. Furthermore, the “instruction” is a control signal for prompting the destination apparatus to perform the next operation, and may include information or itself has a property as information. There is also.

  In addition, even if the format (for example, text format, binary format, flag format, etc.) is changed for each computer, “data” and “information” have the same data and information as long as they are recognized as the same meaning content. Are treated as For example, information indicating “two” is stored as text information “0x32” in ASCII code in one computer, and binary format information “10” in binary notation in another computer. May be.

  However, the distinction between the above “data” and “information” is not strict, and exceptional handling is allowed. For example, data may be temporarily treated as information, or information may be temporarily treated as data. Also, what is handled as data in a certain device may be handled as information in another device. Furthermore, information may be extracted from the data, or data may be extracted from the information.

  The storage units 15 and 35 may be computer-readable storage media. A computer-readable storage medium is a non-transitory medium. Non-transitory media include recording media such as CD-ROM and DVD-ROM in addition to the above examples. A non-transitory medium is also a tangible medium. On the other hand, an electrical signal that carries a program downloaded from a server on the Internet is a computer-readable signal medium that is a kind of computer-readable medium, but a non-transitory computer-readable storage. Not included in the media.

  The program stored in the storage unit 35 of the MFP 51 is executed by the CPU 32. However, in this specification, the operation of each program may be described with the CPU 32 omitted. That is, in the following description, a description that “the program A executes the process A” may indicate that “the CPU 32 executes the process A described in the program A”. The same applies to PC9.

  Moreover, the program memorize | stored in the memory | storage parts 35 and 15 judges an event, and operate | moves according to a judgment result. However, in this specification, the operation of each program may be described by omitting the determination. That is, in the following description, the description to the effect that “the control program executes process A according to condition A” is “whether or not the control program is condition A. The control program makes an affirmative determination. In response to this, the processing A may be executed.

  The programs stored in the storage units 35 and 15 specify, extract, or select data and the like. The program specifies data and the like, for example, specifies data that satisfies a condition from a plurality of data and stores the data itself or information for identifying the data in a predetermined storage area. Refers to processing. The information for identifying data or the like is, for example, identification information for identifying the data or the like, an index of an array in which the data or the like is stored, a pointer of a storage area in which the data or the like is stored, or the like. The same applies to the process of extracting or selecting data or the like by the program.

  Moreover, the program memorize | stored in the memory | storage parts 35 and 15 acquires data. The acquisition of data or the like by the program may refer to a process of reading data from a storage area in which data is stored, for example. The acquisition of data or the like by the program may refer to a process of receiving data transmitted from an external device, for example. The acquisition of data or the like by the program may refer to, for example, a process for requesting a return of data from external data and receiving the data returned from the external device. The acquisition of data or the like by a program may refer to a process of receiving data output by another program such as an OS. The acquisition of data or the like by a program may refer to, for example, a process of requesting data output from another program and receiving data output from another program.

<Example of code correspondence>
The PC 9 is an example of an information processing apparatus. The LAN interface unit 43 is an example of a communication interface. The scanner 20 is an example of an image generation unit. The MFP 51 is an example of a scanner. The IP address and scan setting information are examples of first information. The push scan monitoring program 81 and the scan program 82 are examples of scan programs. The first attribute information 101 and the second attribute information 102 are examples of second information. The CIFS protocol is an example of a file sharing protocol. The CPU 32 is an example of a control unit. The CPU that executes S50 is an example of a second determination unit. The CPU that executes S55 is an example of a scan processing unit. The CPU that executes S60 is an example of a transmission unit. The communication setting storage area 84 is an example of a first area. The CIFS storage area 62 is an example of a second area. The CPU that executes S25 is an example of a reception unit. The CPU that executes S30 is an example of a changing unit. The CPU that executes S125 is an example of a third determination unit. The CPU that executes S115 and S120 is an example of a storage control unit. The CPU that executes S260 is an example of a first detection process. The CPU that executes S270 is an example of a reception process. The CPU that executes S260 is an example of date and time information reception processing. The CPU that executes S220 is an example of a second detection process. The CPU that executes S230 is an example of a standby process. The CPU that executes S435 is an example of a third detection process. The CPU that executes S365 is an example of scan instruction information transmission processing. The CPU that executes S422 is an example of interruption processing. The push scan request information is an example of start information. The auto-run instruction file name is an example of execution instruction information. The scan setting information 111 and 112 is an example of setting information.

  9: PC, 20: Scanner, 32: CPU, 43: LAN interface unit, 51: MFP, 62: CIFS area, 81: Push scan monitoring program, 82: Scan program, 84: Communication setting storage area

Claims (15)

A communication interface capable of executing the first communication and the second communication with the information processing apparatus;
A storage unit;
An image generation unit that generates image data by performing a scanning process of reading an original;
A control unit;
A scanner comprising:
The storage unit stores first information, the first information is necessary for the communication interface to perform the first communication, and individual identification information for identifying an individual of the scanner And
The storage unit stores a scan program that can be executed by the information processing apparatus, and second information,
The second information is file identification information for identifying a file including the first information,
The first communication is communication performed based on address information included in the first information,
The second communication is communication based on a file sharing protocol,
The scan program is a program that can be executed by the information processing apparatus, and is a program for controlling the scan processing executed by the scanner,
The control unit controls the scanner,
It is determined whether the scan program stored in the storage unit and the file read request information indicated by the second information are received from the information processing apparatus by the second communication via the communication interface. First determination means;
In response to determining that the read request information has been received by the first determination unit, the scan program and the second information are transmitted to the information processing apparatus by the second communication via the communication interface. First transmitting means for transmitting;
Second determination means for determining, after transmitting the scan program to the information processing apparatus, whether scan instruction information is received from the information processing apparatus by the first communication via the communication interface;
In response to determining that the scan instruction information has been received by the second determination unit, a scan processing unit that executes the scan process to generate image data;
Transmitting means for transmitting the image data generated by the scan processing means to the information processing apparatus by the first communication via the communication interface;
A scanner characterized by functioning. The storage unit stores the first information in a first area of the storage unit,
The communication interface accesses the first area, performs the first communication using the first information,
The storage unit stores the scan program and the first information copied from the first region in a second region of the storage unit,
The second information is file identification information for identifying a file including the first information stored in the second area,
The control unit controls the scanner,
Receiving means for receiving a change instruction input for instructing a change of the first information;
A changing unit that changes the first information stored in the first area in response to the receiving unit receiving a change instruction input;
Third determining means for determining whether or not the first information has been changed;
Storage control means for copying the changed first information to the second area in response to the first information being determined to be changed by the third determining means;
The scanner according to claim 1, further comprising: The scan program is a program that, when executed by the information processing apparatus, causes the information processing apparatus to execute a first detection process and a reception process;
The first detection process uses the second communication to detect that the first information included in the file identified by the second information stored in the storage unit of the scanner has been changed. Processing,
The reception process is executed using the second communication in response to the first detection process detecting that the first information included in the file identified by the second information has been changed. The scanner according to claim 1, wherein the information processing apparatus receives the first information included in a file identified by the second information. In the first detection process, the second communication is used to receive from the scanner the latest update date and time of the file identified by the second information stored in the storage unit of the scanner. Including
When the last update date and time of the scan program being executed in the information processing apparatus and the last update date and time of the file identified by the second information received in the date and time information reception process do not match, the storage unit The scanner according to claim 3, wherein the scanner detects that the first information included in the file identified by the stored second information has been changed. The scan program is a program that, when executed by the information processing apparatus, causes the information processing apparatus to execute a second detection process and a standby process,
The second detection process is a process of detecting that communication with the scanner using the second communication can be performed,
The standby processing is performed when the connection is disconnected in response to detection by the second detection processing that communication with the scanner using the second communication cannot be performed. A process of waiting until communication with the scanner using communication becomes possible again,
In the reception process, it is detected by the second detection process that communication with the scanner using the second communication is possible again, and the second stored in the storage unit. Second information for identifying the file including the first information after the change is detected in response to the first detection process detecting that the first information included in the file identified by the information has been changed. Obtaining using the second communication;
The scanner according to claim 3 or 4, characterized by the above. The scan program is a program that, when executed by the information processing apparatus, causes the information processing apparatus to further execute a third detection process, a scan instruction information transmission process, and an interruption process,
The third detection process is a process for detecting whether or not start information indicating that an instruction to start the scan process has been input to the scanner has been transmitted from the scanner through the first communication.
The scan instruction information transmission process is a process of transmitting the scan instruction information to the scanner through the first communication in response to detection by the third detection process that the start information has been transmitted. And
The interruption process is a process of interrupting the execution of the third detection process when the second detection process detects that communication with the scanner using the second communication cannot be executed. And
In the reception process, after execution of the third detection process is interrupted by the interruption process, the first information included in the file identified by the second information stored in the storage unit is not changed. The scanner according to claim 5, wherein the execution of the third detection process is resumed when it is determined in the first detection process. The second detection process includes a trial process for trying to confirm whether the scan program is stored in the storage unit of the scanner,
When it cannot be confirmed that the scan program is stored in the storage unit of the scanner, it is detected that communication with the scanner using the second communication cannot be performed. The scanner according to claim 5 or 6.   The first transmission means further transmits execution instruction information for instructing the information processing apparatus to execute the scan program to the information processing apparatus by the second communication. The scanner according to any one of the above.   9. The scan program stored in the storage unit is a program written in a language independent of an operating system that controls the information processing apparatus. Scanner.   The scanner according to claim 9, wherein the scan program stored in the storage unit is a program written in a Java (registered trademark) language. The first information includes setting information indicating contents of various settings related to the scan processing,
The scanner according to claim 1, wherein the scan instruction information generated by the information processing apparatus is generated based on the setting information. The first information is included in the scan program,
12. A storage control means for rewriting the first information included in the scan program stored in the second area of the storage unit with the changed first information. The scanner according to any one of the above. The first information is stored in the second area of the storage unit as a specific file separate from the scan program,
The first information and the scan program are associated with each other so that the first information can be read from the scan program,
The scanner according to claim 1, further comprising storage control means for rewriting the specific file stored in the second area with the changed first information. A communication interface capable of executing the first communication and the second communication with the information processing apparatus;
A storage unit;
An image generation unit that generates image data by performing a scanning process of reading an original;
A control unit;
A scanner control program read by a scanner comprising:
Because
The storage unit stores first information, the first information is necessary for the communication interface to perform the first communication, and individual identification information for identifying an individual of the scanner And
The storage unit stores a scan program that can be executed by the information processing apparatus, and second information,
The second information is file identification information for identifying a file including the first information,
The first communication is communication performed based on address information included in the first information,
The second communication is communication based on a file sharing protocol,
The scan program is a program that can be executed by the information processing apparatus, and is a program for controlling the scan processing executed by the scanner,
The control unit
It is determined whether the scan program stored in the storage unit and the file read request information indicated by the second information are received from the information processing apparatus by the second communication via the communication interface. First determination means;
In response to determining that the read request information has been received by the first determination unit, the scan program and the second information are transmitted to the information processing apparatus by the second communication via the communication interface. First transmitting means for transmitting;
Second determination means for determining, after transmitting the scan program to the information processing apparatus, whether scan instruction information is received from the information processing apparatus by the first communication via the communication interface;
In response to determining that the scan instruction information has been received by the second determination unit, a scan processing unit that executes the scan process to generate image data;
Transmitting means for transmitting the image data generated by the scan processing means to the information processing apparatus by the first communication via the communication interface;
A control program characterized by functioning as a function. A communication system comprising a scanner and an information processing device,
The scanner is
A first communication interface capable of executing first communication and second communication with an information processing device;
A storage unit;
An image generation unit that generates image data by performing a scanning process of reading an original;
With
The storage unit stores first information, the first information is necessary for the first communication interface to perform the first communication, and an individual for identifying the individual scanner Identification information,
The storage unit stores a scan program that can be executed by the information processing apparatus, and second information,
The second information is file identification information for identifying a file including the first information,
The first communication is communication performed based on address information included in the first information,
The second communication is communication based on a file sharing protocol,
The scan program is a program that can be executed by the information processing apparatus, and is a program for controlling the scan processing executed by the scanner,
The information processing apparatus includes a second communication interface capable of executing the first communication and the second communication with the scanner,
The information processing apparatus transmits the scan program stored in the storage unit and the file read request information indicated by the second information to the scanner through the second communication via the second communication interface. First transmitting means for
The scanner is
First determination means for determining whether or not the read request information is received from the information processing apparatus by the second communication via the first communication interface;
In response to determining that the read request information has been received by the first determination unit, the scan program and the second information are transmitted to the information process by the second communication via the first communication interface. Second transmitting means for transmitting to the device;
With
The information processing apparatus further includes third transmission means for transmitting scan instruction information to the scanner through the first communication via the second communication interface after receiving the scan program and the second information. Prepared,
The scanner is
A second determination for determining whether or not the scan instruction information is received from the information processing apparatus by the first communication via the first communication interface after transmitting the scan program to the information processing apparatus; Means,
In response to determining that the scan instruction information has been received by the second determination unit, a scan processing unit that executes the scan process to generate image data;
Transmitting means for transmitting the image data generated by the scan processing means to the information processing apparatus by the first communication via the first communication interface;
Further comprising
The communication system, wherein the scanner further comprises receiving means for receiving the image data via the second communication interface.

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