JP2011130117A - Multifunction peripheral, multifunction peripheral control system, program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To implement a multifunction peripheral in which alternative processing can be performed even when a network connection to a server performing various processing cannot be established. <P>SOLUTION: A multifunction peripheral 1 is connected to an information processor 51 via a network 50, and the information processor 51 has an application which performs prescribed processing in accordance with a call request of the multifunction peripheral. The multifunction peripheral 1 includes a web browser part 5 for generating a call request for calling the application, a first communication part 6 for transmitting the call request to the information processor 51, and a control application part 9 having a backup application for acquiring and storing the application from the information processor 51 when communication with the information processor 51 is possible. If communication with the information processor 51 cannot be established, the control application part 9 performs the stored application. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a multifunction peripheral connected to an information processing apparatus that performs various processes via a network.

  Conventionally, a multi-function peripheral (MFP) having a plurality of functions such as a copy function, a scan function, a print function, and a FAX transmission / reception function is known. In recent years, such a multifunction peripheral is connected to a server such as a PC (personal computer) via a communication network to perform various kinds of processing. For example, when a multifunction device copies a document, the scanned image is transmitted to a server connected via a network, the image processing application operating on the server is called from the multifunction device, and the server performs image processing. An image that has been subjected to image processing is printed by a multifunction peripheral. As a result, the high processing capability and memory resources of the server can be utilized.

  In addition, in order to restrict the use of the MFP by unintended users such as outsiders, when the user is authenticated according to the user authentication application on the PC connected to the MFP via the network, and the authentication is successful Some MFPs can be used for the first time. Such a multifunction machine is provided with an authentication information input device for acquiring authentication information such as an ID and a password from the user in order to authenticate the user. The authentication information acquired by the authentication information input device is collated with information registered in advance in the user account database on the PC, and if the collation results match, the authentication succeeds, and if they do not coincide, the authentication fails.

  However, if processing such as user authentication depends on an external server, if the network connection is cut for some reason, processing such as user authentication cannot be performed, and the functions of the multifunction device cannot be used. Japanese Patent Application Laid-Open No. 2004-228688 includes a second authentication unit that is different from the first authentication unit performed on the server via the network, and the second authentication is performed even when the network connection with the server is disconnected. A multi-function machine that performs user authentication using a means is disclosed.

Japanese Patent Laying-Open No. 2006-092018 (released on April 6, 2006)

  However, in the configuration of Patent Document 1, the application of the first authentication means operating on the server and the application of the second authentication means operating inside the multifunction peripheral are different applications, and their detailed specifications are different. It is necessary to develop an application in accordance with each of the first authentication means and the second authentication means. Therefore, for example, when the contents of the first authentication means on the server are updated due to a specification change or the like (program version upgrade or user addition / deletion, etc.), it is necessary to update the second authentication means on the multifunction peripheral separately. There is a problem that the development and update work increases. Further, for example, the user operability may be reduced due to a difference in user interface (UI) between the first authentication unit and the second authentication unit, that is, a difference in an operation screen and an input operation procedure displayed on the multifunction peripheral. Problems such as lowering occur.

  The present invention has been made in view of the above-described problems, and its purpose is to replace an MFP in a multifunction device so as not to impair user convenience even when a network connection with a server that performs various processes cannot be established. The object is to realize a multifunction machine capable of performing processing.

  A multifunction peripheral according to the present invention is a multifunction peripheral connected to an information processing apparatus via a network. In order to solve the above problem, the information processing apparatus performs predetermined processing according to a call request of the multifunction peripheral. And a predetermined screen data is transmitted to the multi-function peripheral as a response. The multi-function peripheral generates a call request for calling the first application of the information processing apparatus, and the call request. A communication unit that transmits information to the information processing device, a storage unit, a storage unit that stores the screen data received from the information processing device as a response to the call request, and a screen corresponding to the response. A display unit for displaying and an application execution unit for executing a second application for performing a predetermined process, and the communication unit communicates with the information processing apparatus. When the call request cannot be transmitted to the information processing apparatus, the application execution unit sends a response to the call request using the screen data stored in the storage unit by executing the second application. And the display unit displays a screen corresponding to the response generated by the application execution unit.

  A multifunction device control system according to the present invention is a multifunction device control system including a multifunction device and an information processing apparatus connected to the multifunction device via a network. The processing device executes a first application that performs predetermined processing in accordance with a call request from the multifunction device, and transmits predetermined screen data to the multifunction device as a response. The multifunction device is configured to transmit the first application of the information processing device. A request unit for generating a call request for calling, a communication unit for transmitting the call request to the information processing device, a storage unit, and the screen data received from the information processing device as a response to the call request. A storage unit that stores data, a display unit that displays a screen corresponding to the response, and an application execution that executes a second application that performs a predetermined process When the communication unit cannot establish communication with the information processing apparatus and cannot transmit the call request to the information processing apparatus, the application execution unit executes the second application to store the memory. A response to the call request is generated using the screen data stored in the unit, and the display unit displays a screen corresponding to the response generated by the application execution unit.

  According to the above configuration, when the multifunction peripheral cannot establish communication with the information processing apparatus and cannot transmit a call request to the information processing apparatus, the multifunction apparatus sets the application execution unit to call the first application of the information processing apparatus instead of calling the first application. By executing the two applications, an alternative process of the first application can be performed. In addition, the multifunction device stores the screen data acquired when the first application is called, and when the substitute processing is performed by the second application, uses the stored screen data to the request unit. Generates a response. Therefore, the second application can display the same screen on the display unit as when the first application responds, for example, and the multifunction peripheral can also display the first application even when the second application performs an alternative process. Similar operability can be provided to the user.

  The MFP includes an authentication information acquisition unit, the call request includes authentication information input by a user, and the first application performs user authentication using the authentication information included in the call request. When the user authentication by the first application is successful, the authentication information acquisition unit stores the authentication information that has been successfully authenticated in the storage unit as an authentication history, and the second application responds to the call request. An application that performs user authentication using the authentication information included and the authentication history stored in the storage unit, and the communication unit cannot establish communication with the information processing apparatus, and If transmission to the information processing apparatus is not possible, the application execution unit executes the second application to execute the user. Authenticate, it may be configured to generate a response to the call request by using the screen data stored in the storage unit in response to the success or failure of the user authentication.

  According to the above configuration, when the MFP cannot establish communication with the information processing apparatus and cannot perform user authentication by the first application of the information processing apparatus, instead of calling the first application of the information processing apparatus. Alternative user authentication can be performed by causing the application execution unit to execute the second application. In addition, the multifunction device stores authentication information when user authentication is performed by the first application as an authentication history, and the second application performs authentication on the authentication information input by the user using the stored authentication history. User authentication can be performed. Then, when the alternative user authentication is performed by the second application, the multifunction peripheral generates a response to the request unit using the stored screen data according to the success or failure of the user authentication. Therefore, even when the first application (for example, the user list) of the information processing apparatus is changed, alternative user authentication can be performed without changing the second application of the multifunction peripheral, and the same user as the first application Authentication processing and operability can be provided to the user.

  The application execution unit changes a part of the screen data stored in the storage unit by executing the second application, and is displayed on the display unit when the first application is called. The screen may be different.

  According to the above configuration, a part of the screen displayed to the user, for example, the background color or the character color, is different between when the process is performed by the first application and when the process is performed by the second application. be able to. Therefore, the MFP cannot establish communication with the information processing apparatus, and can notify the user that an alternative process is being performed by the second application.

  A multifunction peripheral according to the present invention is a multifunction peripheral connected to an information processing apparatus via a network. In order to solve the above problem, the information processing apparatus performs predetermined processing according to a call request of the multifunction peripheral. The MFP is capable of executing the application, and the MFP is configured to generate a call request for calling the application of the information processing apparatus, and a communication for transmitting the call request to the information processing apparatus. A storage unit that acquires the application from the information processing apparatus and saves the application in the storage unit when the communication unit is communicable with the information processing apparatus, and application execution that can execute the stored application And the communication unit cannot establish communication with the information processing device and cannot transmit the call request to the information processing device. If not, the application execution unit is characterized by executing the application stored in the storage unit.

  A multifunction device control system according to the present invention is a multifunction device control system including a multifunction device and an information processing device connected to the multifunction device via a network, and the information processing device calls the multifunction device. An application that performs predetermined processing in accordance with the request, and is capable of executing the application, wherein the MFP is configured to generate a call request for calling the application of the information processing apparatus; A communication unit that transmits to the device, a storage unit, a storage unit that acquires the application from the information processing device and stores the application in the storage unit when communication with the information processing device is possible, and a stored application An executable application execution unit, and the communication unit cannot establish communication with the information processing apparatus and If you can not send to the serial information processing apparatus, the application execution unit is characterized by executing the application stored in the storage unit.

  According to the above configuration, the multifunction peripheral acquires and saves the application of the information processing apparatus, and when communication with the information processing apparatus is possible, the multifunction peripheral transmits a call request to the information processing apparatus and the information processing apparatus When the communication with the information processing apparatus cannot be established and the call request cannot be transmitted to the information processing apparatus, the stored application is executed to perform a predetermined process. For this reason, when the MFP can communicate with the information processing apparatus, it can generally perform processing by executing an application using the high processing capability of the information processing apparatus, and communication with the information processing apparatus cannot be established. Can perform the same processing by executing the saved application. Therefore, even when communication with the information processing apparatus cannot be established, the multifunction peripheral can provide the user with the same operability as when the application is executed on the information processing apparatus, and does not impair user convenience. Further, according to the above configuration, application maintenance management (change, version upgrade, etc.) only needs to be performed on the information processing apparatus, and the multifunction peripheral acquires the application of the information processing apparatus, thereby You can update the application saved in.

  The MFP further includes a job transmission unit that stores a history of jobs executed by the MFP while the communication unit cannot establish communication with the information processing apparatus, and the job transmission unit includes the communication unit. After establishing communication with the information processing apparatus, the history may be transmitted to the information processing apparatus.

  According to the above configuration, the information processing apparatus can obtain a history of jobs executed by the multifunction peripheral while the communication unit cannot establish communication with the information processing apparatus. Can be saved.

  A multifunction peripheral according to the present invention is a multifunction peripheral connected to an information processing apparatus via a network, and in order to solve the above problem, a call that functions as a web browser and calls the first application of the information processing apparatus. A web browser unit that generates a request, a communication unit, and a first web server unit that functions as a web server. The information processing apparatus includes a second web server unit that functions as a web server. When the communication unit can communicate with the information processing device, the communication unit transmits the call request generated by the web browser unit to the second web server unit of the information processing device, and the second web server unit The first application is executed in accordance with the call request from the multi-function peripheral, and the communication unit cannot establish communication with the information processing apparatus. Cannot be transmitted to the information processing apparatus, the communication unit transmits the call request to the first web server unit, and the first web server unit replaces the first application in response to the call request. It is characterized by running an application.

  A multifunction peripheral control system according to the present invention is a multifunction peripheral control system that includes a multifunction peripheral and an information processing apparatus connected to the multifunction peripheral via a network. The multifunction peripheral functions as a web browser and functions as a web browser. A web browser unit that generates a call request for calling a first application of the information processing device, a communication unit, and a first web server unit that functions as a web server, wherein the information processing device functions as a web server. When the communication unit includes a web server unit and can communicate with the information processing device, the communication unit transmits the call request generated by the web browser unit to the second web server unit of the information processing device. The second web server unit executes the first application in accordance with the call request from the multifunction device, and the communication unit performs the information processing. When communication with the device cannot be established and the call request cannot be transmitted to the information processing device, the communication unit transmits the call request to the first web server unit, and the first web server unit responds to the call request. Accordingly, a second application that is an alternative to the first application is executed.

  According to the above configuration, when the multifunction peripheral includes the first web server unit and communication with the information processing apparatus cannot be established and a call request cannot be transmitted to the information processing apparatus, the first web server unit is An alternative function of the second web server portion of the second can be executed. Moreover, the 1st web server part functions as a web server like the 2nd web server part, and can process the call request which the web browser part produced | generated. Therefore, the same communication protocol (for example, HTTP (hypertext transfer protocol)) can be used in communication between the web browser unit and the second web server unit and communication between the web browser unit and the first web server unit. The second and first applications executed by the first and second web server units can be made compatible. Therefore, even when communication with the information processing apparatus cannot be established in the multifunction peripheral, it becomes easier to provide the user with the same operability as when the first application is executed on the information processing apparatus. The convenience of is not impaired.

  The multi-function device may be realized by a computer. In this case, a program that causes the multi-function device to be realized by a computer by causing the computer to operate as the communication unit, the storage unit, and the application execution unit, A program that causes a computer to realize a multifunction peripheral by operating the computer as the communication unit, the web browser unit, and the first web server unit, and a computer-readable recording medium that records the program are also disclosed in the present invention. It falls into the category.

  According to the MFP according to the present invention, when the MFP cannot establish communication with the information processing apparatus and cannot transmit a call request to the information processing apparatus, the MFP executes the application instead of calling the first application of the information processing apparatus. By causing the unit to execute the second application, it is possible to perform an alternative process of the first application. The second application can display the same screen on the display unit as when, for example, the first application responds, and the multi-function device can also display the first application when the second application performs an alternative process. Similar operability can be provided to the user.

  Further, according to the multifunction peripheral according to the present invention, when the multifunction peripheral can communicate with the information processing apparatus, generally, the multifunction peripheral can perform processing by executing an application using the high processing capability of the information processing apparatus. If communication with the information processing apparatus cannot be established, the stored application can be executed to perform the same processing. Therefore, even when communication with the information processing apparatus cannot be established, the multifunction peripheral can provide the user with the same operability as when the application is executed on the information processing apparatus, and does not impair user convenience. Further, application maintenance management only needs to be performed on the information processing apparatus, and the multifunction peripheral can update the application stored in the multifunction peripheral by acquiring the application of the information processing apparatus.

  Further, according to the MFP according to the present invention, the MFP includes the first web server unit, and when the communication with the information processing apparatus cannot be established and the call request cannot be transmitted to the information processing apparatus, the first web server The unit can execute an alternative function of the second web server unit of the information processing apparatus. Moreover, the 1st web server part functions as a web server like the 2nd web server part, and can process the call request which the web browser part produced | generated. Therefore, the same communication protocol (for example, HTTP (hypertext transfer protocol)) can be used in communication between the web browser unit and the second web server unit and communication between the web browser unit and the first web server unit. The second and first applications executed by the first and second web server units can be made compatible. Therefore, even when communication with the information processing apparatus cannot be established in the multifunction peripheral, it becomes easier to provide the user with the same operability as when the first application is executed on the information processing apparatus. The convenience of is not impaired.

1 is a block diagram illustrating a schematic configuration of a multifunction machine control system according to an embodiment of the present invention. FIG. It is a block diagram which shows schematic structure of a control application part. 6 is a diagram illustrating an example of an initial operation screen displayed on a display unit of a multifunction peripheral. FIG. (A) is a figure which shows an example of the HTML code of an authentication information input screen, (b) is a figure which shows the authentication information input screen which drawn the HTML code shown to (a) by the web browser part. 6 is a diagram illustrating an example of an operation screen after successful authentication displayed on the display unit of the multifunction peripheral. FIG. 5 is a flowchart illustrating a flow in which a multifunction machine performs processing in cooperation with an application on an information processing apparatus. It is a block diagram which shows schematic structure of the multifunctional device control system which concerns on other embodiment of this invention. It is a block diagram which shows schematic structure of a control application part. 6 is a flowchart illustrating a flow of user authentication processing of the multifunction machine. 6 is a flowchart illustrating a flow of user authentication processing of the multifunction machine.

  Hereinafter, embodiments of the present invention will be described in detail.

[Embodiment 1]
<Configuration of MFP control system>
FIG. 1 is a block diagram illustrating a schematic configuration of a multifunction machine control system according to the present embodiment. As shown in FIG. 1, the multifunction device control system of this embodiment includes a multifunction device 1 and an information processing device 51, and these devices are connected via a network 50. Of course, the number of multifunction devices 1 included in the multifunction device control system may be plural, and the number of information processing devices 51 may be plural.

  As the network to which the multifunction device 1 and the information processing apparatus 51 are connected, the Internet, a telephone line, a serial cable, or another communication line such as a wired line or a wireless line can be used. The MFP 1 and the information processing apparatus 51 communicate with each other using HTTP (Hypertext Transfer Protocol), which is a protocol used for requesting and transmitting a web page.

  The multifunction device 1 receives the operation screen data from the information processing apparatus 51 and displays the operation screen indicated by the operation screen data. Then, the multifunction device 1 executes a job (for example, processing of a scan job, a print job, etc.) according to the instruction according to the instruction input on the operation screen.

  The information processing device 51 is a computer device that includes an arithmetic processing unit such as a CPU and a dedicated processor, and a storage unit such as a RAM, a ROM, and an HDD, and functions as a web server device for a plurality of multifunction devices 1. It is. As illustrated in FIG. 1, the information processing apparatus 51 includes a second communication unit 52, a second web server unit 53, and an external application unit 54.

  The second communication unit 52 communicates with the multifunction device 1 via a LAN, an Internet line, or the like. The second communication unit 52 communicates with the multi-function device 1 using an HTTP communication protocol.

  The second web server unit 53 receives a request from the multi-function device 1 via the second communication unit 52, and transmits an HTML file, image data, print data, etc. according to the request via the second communication unit. It is a block having a function of returning to the multifunction device 1.

  The external application unit 54 is a block that performs an operation according to a predetermined application in response to an instruction from the second web server unit 53.

  For example, when the request from the multifunction device 1 is an operation screen transmission request, the external application unit 54 performs an operation according to the operation screen transmission application. Specifically, the external application unit 54 reads out HTML data of the operation screen indicated by the transmission request from the storage unit and sends it to the second web server unit 53.

  In addition, when the request from the multifunction device is a print data transmission request, the external application unit 54 performs an operation according to the print application. Specifically, the external application unit 54 acquires print data designated from the folder at the address indicated by the transmission request, and sends the print data to the second web server unit 53.

  Furthermore, when the request from the multifunction device 1 is a user authentication request, the external application unit 54 performs an operation according to the authentication application. Specifically, the external application unit 54 performs an authentication process using a user name, a password, or the like indicated by the authentication request, and sends HTML data indicating the authentication result to the second web server unit 53.

  In the present embodiment, the external application unit 54 combines HTML data to be accessed by the first web server unit 8 inside the multifunction device 1 in order to execute the functions of the multifunction device 1 (for example, a scan function and a print function). Transmit to machine 1. Thereby, the multi-function device 1 can execute various functions according to the control command from the internal first web server unit 8 instead of the control command from the information processing apparatus 51 having the external application unit 54. Since communication between the multifunction device 1 and the information processing device 51 is performed by HTTP, even if there is a firewall that blocks communication of control commands between the multifunction device 1 and the information processing device 51, The machine 1 can normally execute various functions according to the input from the user on the operation screen received from the information processing apparatus 51.

  For example, the external application unit 54 accesses a control application inside the multifunction device 1 when a button for executing a function (for example, a scan function or a print function) of the multifunction device 1 is pressed on the operation screen. HTML data in which a loopback address for writing is generated is transmitted to the multifunction device 1 via the second web server unit 53 and the second communication unit 52. Alternatively, when the external application unit 54 receives an HTTP request (call request) indicating a call for calling a function of the multi-function device 1 from the multi-function device 1, the external application unit 54 uses the URL to access the web server unit 9 inside the multi-function device 1. HTML data describing an HTTP redirect indicating the change may be transmitted to the multi function device 1.

<Configuration of MFP>
Next, the configuration of the multifunction machine 1 will be described. The multifunction device 1 is a device capable of executing a plurality of functions such as a copy function, a scan function, a print function, a facsimile transmission / reception function, and an image data transmission function. Only the functions characteristic of this embodiment will be described, and descriptions of other functions will be omitted.

  As shown in FIG. 1, the multifunction device 1 includes an image reading unit 2, an image forming unit 3, an operation unit 4, a web browser unit (request unit) 5, a first communication unit 6, and a device control unit. 7, a first web server unit 8, and a control application unit (application execution unit) 9.

  The operation unit 4 is a user interface that notifies the user of information and receives input from the user. The operation unit 4 includes a display unit 10 such as a liquid crystal display, and an input unit 11 configured with a touch panel. The input unit 11 may include various input keys.

  The image reading unit 2 includes a scanner and a document transport unit that transports a document to the position of the scanner, and reads characters and images printed on the document as image data.

  The image forming unit 3 is for printing an image (character / photo / graphic) corresponding to input image data on a sheet such as paper, and includes a photosensitive drum, a charging device, an exposure device, a developing device, It includes a printing function including a transfer device, a fixing device, and a paper tray.

  The first communication unit 6 is an interface for performing communication with an external device such as the information processing device 51. In the present embodiment, as described above, the first communication unit 6 communicates with the information processing apparatus 51 using HTTP.

  The web browser unit 5 is a general-purpose or performs an operation according to software of a commercially available web browser. The web browser unit 5 can communicate not only with the second web server unit 53 included in the information processing apparatus 51 but also with the first web server unit 8 inside the multifunction device 1 using HTTP.

  In the present embodiment, the web browser unit 5 requests operation screen data, print data, user authentication processing, and the like, and executes various functions (for example, a scan function and a print function) of the multifunction machine 1. When the control command is not requested, the information processing apparatus 51 communicates with the first web server unit 8. On the other hand, the web browser unit 5 communicates with the first web server unit 8 inside the multifunction device 1 when requesting a control command for executing various functions of the multifunction device 1 (for example, a scan function and a print function). It is set to be. A specific example of this setting will be described later.

  The first web server unit 8 receives a request (HTTP request) from the web browser unit 5 and executes an application corresponding to the request. The first web server unit 8 operates in accordance with a general (commercially available) web server program such as “Appweb”.

  The control application unit 9 executes processing according to a web application that runs on the web server. The control application unit 9 includes a general (or commercially available) web application execution environment such as “EJscript”. “EJscript” is a program that provides a server-side JavaScript (registered trademark) execution environment, and can execute a web application described in JavaScript (registered trademark). The control application unit 9 stores various applications. FIG. 2 is a block diagram showing a schematic configuration of the control application unit 9. The control application unit 9 includes an application that can be executed by the control application unit 9 such as a backup application, and includes a storage unit that stores data and other applications. The control application unit 9 has a control application such as a copy application for executing the functions of the multifunction peripheral. When it is necessary to execute various functions (for example, a scan function, a print function, a copy function, etc.) of the multifunction device 1, the control application unit 9 executes a control application for executing the function and gives a control instruction. This is sent to the device control unit 7. Thereby, the function of the multifunction device 1 can be executed.

  The device control unit 7 controls various functions of the multifunction device 1. Specifically, the device control unit 7 controls the operation of each unit such as the image reading unit 2, the image forming unit 3, the operation unit 4, and the first communication unit 6.

  For example, the device control unit 7 controls the operation of the image reading unit 2 to acquire scan image data. The device control unit 7 controls the operation of the image forming unit 3 to form and output an image indicated by the input image data on a sheet. Further, the device control unit 7 uses the first communication unit 6 to store the input image data in a specified external resource, or attach the input image data to an e-mail and specify Send to address.

  When the multi-function device 1 is activated, the device control unit 7 activates the web browser unit 5 to perform an initial operation on a preset URL (in this embodiment, the second web server unit 53 of the information processing apparatus 51). (The URL requesting the transmission of the screen) is executed. The device control unit 7 receives a control instruction from the control application 9 and performs control according to the control instruction.

  The device control unit 7 includes an Open I / F unit 71 that can accept a control command that does not depend on the model of the multifunction device 1. The Open I / F unit 71 publishes control commands (API: Application Programming Interface) for controlling various functions of the multifunction device 1 to the control application unit 9 and receives control commands from the control application unit 9. The received control command is converted into a command that can be recognized by the device control unit 7.

  The Open I / F unit 71 includes a conversion table storage unit (not shown) that stores a conversion table in which control commands disclosed to the outside are associated with commands that can be recognized by the device control unit 7. Command conversion processing is performed according to the conversion table.

  In this way, the Open I / F unit 71 can accept a common control command that does not depend on the type of the multifunction device. As a result, a common application for operating the control application unit 9 can be used regardless of the multifunction peripheral. Therefore, when the control application unit 9 is operated according to a new application, it is only necessary to install the same application for each multifunction device, and it is not necessary to change the application for each multifunction device. Thereby, it is possible to easily develop an application for operating the control application unit 9.

<User authentication process>
The multifunction device 1 performs user authentication in order to restrict use by an unintended user such as an outsider, and some functions can be used when the authentication is successful. The multifunction device 1 is connected via a network 50 to a server 51 that executes an authentication application in order to authenticate a user.

  Assume that user authentication is required when the MFP 1 executes document copy processing. In a state where the user has not been authenticated yet (standby state), the multifunction device 1 displays an initial operation screen on the display unit 10. FIG. 3 is a diagram illustrating an example of an initial operation screen displayed on the display unit 10 of the multifunction machine 1. Since the copy process cannot be executed at a stage where the user is not authenticated, the copy button 61 is displayed, for example, in a shaded manner to indicate that selection is not possible. The HTML code of the initial operation screen is generated by the external application unit 54 of the information processing apparatus 51 (see FIG. 1), transmitted to the multi-function device 1, interpreted by the web browser unit 5, and displayed on the display unit 10.

  The user instructs the multifunction peripheral 1 to copy the document by pressing the authentication button 62 on the operation screen via the touch panel. The input unit 11 outputs a user instruction input to the web browser unit 5. The authentication button instructs to call an authentication application by the external server 51, and instructs to access the URL “http: //xxx.123.123.123/app/auth”. Here, “xxx.123.123.123” is the IP (Internet Protocol) address of the server 51, and “app / auth” indicates the URI of the authentication application on the server 51. The web browser unit 5 outputs an HTTP request for accessing the URL “http: //xxx.123.123.123/app/auth” to the first communication unit 6. The first communication unit 6 transmits an HTTP request to the server 51 with the IP “xxx.123.123.123” via the network 50 in accordance with the HTTP request.

  When receiving the HTTP request from the multifunction device 1, the second communication unit 52 of the server 51 outputs the HTTP request to the second web server unit 53 provided in the server 51. The second web server unit 53 operates according to a general (commercially available) web server program such as “Appweb”. The second web server unit 53 that has received the HTTP request from the multifunction device 1 transmits a call for calling the authentication application indicated by the URI “app / auth” to the external application unit 54 in accordance with the HTTP request.

  The external application unit 54 executes a plurality of applications that perform various processes. In the present embodiment, the external application unit 54 includes a general (commercially available) web application execution environment such as “EJscript”. “EJScript” is a program that provides a server-side JavaScript (registered trademark) execution environment, and executes a web application described in Java Script (registered trademark) on the server side (on the server 51) to generate a result. However, the application may be described or compiled in another programming language as long as it can be executed by both the external application unit 54 and the control application unit 9.

  An authentication application described in JavaScript (registered trademark) is executed by the external application unit 54 and generates data of an authentication information input screen that prompts the user to input authentication information to be displayed on the display unit 10 of the multifunction device 1. Specifically, the authentication application generates an HTML code shown in FIG. The second web server unit 53 receives the HTML code from the authentication application, and outputs it to the second communication unit 52 as an HTTP response (response). The second communication unit 52 transmits an HTTP response to the multifunction device 1 via the network 50.

  The first communication unit 6 of the multifunction device 1 outputs the HTTP response received from the server 51 to the web browser unit 5 on the multifunction device 1. The web browser unit 5 interprets the received HTTP response, generates authentication information input screen data according to the HTML code included in the HTTP response, and causes the display unit 10 to display the authentication information input screen. FIG. 4B is a diagram showing an authentication information input screen in which the HTML code shown in FIG. In this way, the multifunction device 1 acquires screen information to be displayed on the display unit 10 from an application operating on the external server 51.

  In order to perform user authentication, the user inputs a user ID (login name) and a password in the input box of the authentication information input screen shown in FIG. 5, the user ID and password are transmitted to the information processing apparatus 51 as an HTTP request. In this case, as shown in FIG. 4A, the authentication information entered by the user for the URL “http: //xxx.123.123.123/app/auth” specified in the action attribute in the form element. (User ID and password) are transmitted by the HTTP request as arguments by the GET method. Note that an HTTP request may be made using the POST method.

  In the information processing apparatus 51, a user list in which user IDs and passwords of available users are described is registered in advance. When the authentication application operating in the external application unit 54 of the information processing apparatus 51 receives the authentication information from the multi-function device 1, the user list is included in the user list by referring to the user list. If it is, it is determined that the user authentication has succeeded, and otherwise, it is determined that the user authentication has failed.

  If the user authentication fails, the authentication application generates an HTML code of an authentication information input screen that prompts re-input of the user ID and password, and transmits the generated HTML code to the multifunction device 1 as an HTTP response.

  If the user authentication is successful, the authentication application transmits an HTTP response indicating the authentication success to the multifunction device 1. Specifically, if user authentication is successful, the authentication application generates an HTML code of an operation screen for executing a function that requires authentication, and transmits the generated HTML code as an HTTP response to the MFP 1. The web browser unit 5 of the multifunction device 1 interprets the received HTML code and displays it on the display unit 10.

  If the user authentication is successful, the authentication application transmits an HTTP request for calling a backup application operating on the control application unit 9 to the first web server unit 8 of the multifunction machine 1. The backup application of the multifunction device 1 cooperates with the authentication application, downloads (acquires) the authentication application itself of the information processing apparatus 51 and the user list to the multifunction device 1, and stores them in the storage unit in the control application unit 9. At the same time, the backup application downloads an application for generating an initial operation screen on the information processing apparatus 51 (or an HTML code for the initial operation screen) and stores it in the storage unit in the control application unit 9. The control application unit 9 operates as a storage unit that executes the backup application and stores the application of the information processing apparatus 51.

  FIG. 5 is a diagram illustrating an example of an operation screen after successful authentication displayed on the display unit 10 of the multifunction device 1. On the operation screen after successful authentication, the user can select a function that requires authentication in order to execute it, that is, the user can select the copy button 61. Further, information 63 indicating that the user authentication is successful and the authenticated user ID are displayed on the operation screen after successful authentication. The user can cause the multi-function device 1 to execute the copy function by selecting the copy button 61 that can be selected via the touch panel.

  When the user selects the copy button 61, the web browser unit 5 outputs an HTTP request for accessing the URL “http://127.0.0.1/copy” set in the copy button 61 to the first communication unit 6.

  Here, since “127.0.0.1” is a reserved IP address indicating itself, the HTTP request is a loopback call in which the multifunction device 1 calls the application of the URI “copy” possessed by the multifunction device 1 itself. . The first communication unit 6 transfers the HTTP request to the first web server unit 8 inside the multifunction device 1 because the destination of the HTTP request is a loopback call indicating itself.

  The first web server unit 8 interprets the HTTP request and calls an application indicated by the URI “copy” operating on the control application unit 9, that is, a copy application. The copy application generates an HTML code for the copy operation screen, and transmits the HTML code to the web browser unit 5 via the first web server unit 8 as an HTTP response.

  The copy operation screen is an operation screen for the user to set information specified by the user when executing the copy. On the copy operation screen, the user can input or select setting items such as the number of copies, paper size, and enlargement / reduction ratio. When the user selects a “copy execution” button provided on the copy operation screen, an HTTP request including information such as the set number of copies is output from the web browser unit 5 to the first communication unit 6. . This HTTP request is for accessing the URL “http://127.0.0.1/copy”, and information indicating that “Copy execution” has been selected (for example, the variable “exe” specified in the form element). Is set to "1") and setting information such as the number of copies is included as an argument by the GET method.

  The first communication unit 6 transmits this HTTP request, which is a loopback call, to the first web server unit 8 in the multifunction device 1. The first web server unit 8 calls the copy application specified by the URL “http://127.0.0.1/copy”, and sets the information indicating that “copy execution” has been selected, the number of copies, etc. Pass information to the copy application. When the copy application includes information indicating that “execute copy” is selected, the copy application inputs a control command to execute copy according to the setting information to the device control unit 7.

  The device control unit 7 receives a control command for executing copying by the Open I / F unit 71, and converts the control command into a command that can be recognized by the device control unit 7. The device control unit 7 executes a copy process according to the converted command. The processing performed by the device control unit 7 in accordance with the converted command and the processing performed by the image reading unit 2 and the image forming unit 3 are the same as those in the prior art, and thus detailed description thereof is omitted.

  When the copy process is completed, the device control unit 7 transmits a command for notifying the copy application of the control application unit 9 that the copy has been completed via the Open I / F unit 71. The Open I / F unit 71 converts the command from the device control unit 7 into a control command that can be recognized by the copy application, and passes the control command to the copy application.

  The copy application that has received the notification of the completion of copying generates an HTML code indicating to the user that the copying has been completed, and the first web server unit 8 sends the HTML code as an HTTP response via the first communication unit 6 to the web. Transmit to the browser unit 5.

  The web browser unit 5 interprets the HTTP response and displays an operation screen indicating that the copying is completed on the display unit 10. The operation screen is set by HTML so as to request the initial operation screen shown in FIG. 3 after a predetermined time has elapsed since it was displayed. 51 requests the second web server unit 53 to transmit an initial operation screen.

  In addition, you may make it preserve | save the information with which user authentication was successful in the cookie (cookie) of the web browser part 5 for the predetermined time. According to this configuration, the multifunction device 1 can be used without inputting the user ID and password again to perform other processing within a predetermined time after successful user authentication. . In addition, transmission / reception of user IDs and passwords may be performed using HTTP encrypted by SSL (Secure Sockets Layer) in consideration of security.

  According to the present embodiment, data for user authentication (user ID and password) is stored in the information processing device 51 outside the multi-function device 1, and the data on the information processing device 51 is changed or updated, whereby the user Can be managed. Therefore, when managing users of a plurality of multi-function peripherals by the information processing apparatus 51, they can be managed centrally on the information processing apparatus 51. Therefore, it is possible to reduce labor related to management of user information and the like. The authentication application described above is an example of processing performed by the information processing apparatus 51, and other applications can be registered in the information processing apparatus 51 and called from the multifunction machine 1. For example, an image processing application is registered in the external application unit 54 of the information processing apparatus 51, the image processing application is called from the multifunction device 1, the scanned image is processed by the information processing apparatus 51, and the image processed image is combined. It is possible to perform printing on the machine 1. As a result, the high processing capability and memory resources of the server can be utilized. In addition, by updating each application such as an authentication application or an image processing application on the information processing apparatus 51 to a new one, each application used by the multifunction machine 1 can be upgraded.

  Moreover, the web browser part 5 communicates with the 1st web server part 8 and the 2nd web server part 53 by HTTP similarly to a general web browser. Similarly, the first web server unit 8 and the second web server unit 53 start a server application in the same manner as a general web server, and communicate with the web browser unit 5 by HTTP. Therefore, the web browser unit 5 can use general (commercially available) web browser software as it is, and does not need to be customized for the multifunction device 1. Similarly, the first web server unit 8 and the second web server unit 53 can use general web server software as they are, and need not be customized for the multifunction device 1. Therefore, even when it is necessary to upgrade the web browser software or web server software, a new version of the web browser software or web server software can be used without modification. Therefore, maintenance management of the multifunction machine 1 and the information processing apparatus 51 can be easily performed.

<User authentication process when connection cannot be established>
Next, a case where a connection cannot be established between the multifunction machine 1 and the information processing apparatus 51 will be described. Assume that the initial operation screen shown in FIG. 3 is displayed on the display unit 10 and the user selects the authentication button 62 at a stage where user authentication has not yet been completed. The first communication unit 6 (see FIG. 1) sends an HTTP request including an access request to the URL “http: //xxx.123.123.123/app/auth” (authentication application on the information processing device 51) to the information processing device. 51.

  If the connection between the MFP 1 and the information processing apparatus 51 via the network 50 cannot be established due to some cause, the first communication unit 6 cannot obtain a normal response from the information processing apparatus 51. If the connection cannot be established within a predetermined time, the first communication unit 6 stops the connection to the information processing apparatus 51, and the URL “http: //xxx.123.123.123/app” of the HTTP request is concerned. The IP address “xxx.123.123.123” of “/ auth” is rewritten to the loopback address “127.0.0.1”, and the HTTP request is transmitted to the first web server unit 8 in the MFP 1.

  The first web server unit 8 that has received the HTTP request calls the authentication application stored in the control application unit 9 by the backup application when the user authentication has been successful before. In the present embodiment, the authentication application is described in JavaScript (registered trademark), and can be executed by the control application unit 9 as in the information processing apparatus 51. Therefore, the authentication application on the control application unit 9 can display the authentication information input screen shown in FIG.

  Next, when the user inputs authentication information in order to perform user authentication, the first communication unit 6 tries to transmit an HTTP request to the information processing apparatus 51. If the connection cannot be established within a predetermined time, the first communication unit 6 stops the connection to the information processing apparatus 51 and sends the HTTP request to the first in the multifunction device 1 as in the previous case. 1 Transmit to the web server unit 8. The first web server unit 8 calls the authentication application stored in the control application unit 9, and the authentication application on the control application unit 9 refers to the user list that is also stored in the control application unit 9, Authenticate.

  If the user authentication is successful, the authentication application on the control application unit 9 transmits an HTTP response indicating successful authentication to the web browser unit 5. Specifically, when user authentication is successful, the authentication application generates an HTML code of an operation screen for executing a function that requires authentication, and transmits the generated HTML code to the first communication unit 6 as an HTTP response. The first communication unit 6 of the multifunction device 1 outputs the HTTP response to the web browser unit 5. Since the subsequent processing is the same, description thereof is omitted.

  If the connection cannot be established within a predetermined time, the first communication unit 6 sends an HTTP request for starting a job recording application operating on the control application unit 9 of the multifunction device 1 to the first function of the multifunction device 1. 1 Transmit to the web server unit 8. Normally, the multifunction device 1 transmits a history of executed jobs (processing such as scanning or printing) to the information processing device 51, and the information processing device 51 stores a history of jobs and user authentication in a database. Thereby, the usage frequency of the multifunction device 1 for each user or for each process (for example, recording of the number of printed sheets for each user) can be confirmed. The job recording application stores the job executed in the multifunction device 1 and the history of user authentication while the connection between the multifunction device 1 and the information processing device 51 cannot be established, and the connection with the information processing device 51 is restored. Later, a job and user authentication history is transmitted to the information processing apparatus 51. Thereby, the information processing apparatus 51 can obtain the usage history of the multifunction device 1 while the connection with the multifunction device 1 was disconnected. The started job recording application stores the executed job and the history of user authentication, for example, tries to connect to the information processing device 51 every predetermined period, and when the connection with the information processing device 51 is established, The job and user authentication history is transmitted to the information processing apparatus 51, and the process ends. As a result, the information processing apparatus 51 can accurately store the usage history record.

  In the present embodiment, the multi-function device 1 can perform user authentication even when a connection with the information processing apparatus 51 cannot be established by an authentication application stored on the control application unit 9. Since the MFP 1 downloads and uses the authentication application and the user list on the information processing apparatus 51, maintenance management (change, version upgrade, etc.) of the authentication application and the user list is performed only on the information processing apparatus 51. Good. Further, even when the connection with the information processing apparatus 51 cannot be established, the user authentication is performed using the same authentication application. Therefore, the user is authenticated regardless of whether the information processing apparatus 51 performs authentication or the MFP 1 performs authentication. The operability (operation screen and input operation procedure) is the same, and the convenience of the user can be improved.

  In addition, the above-described authentication application is an example, and when another application on the information processing apparatus 51 is used, the application is downloaded into the multifunction machine 1 and a connection with the information processing apparatus 51 cannot be established. You may comprise so that the application downloaded on the control application part 9 of the multifunction device 1 may be executed. Further, the multifunction device 1 may activate the backup application at an arbitrary timing such as a predetermined time or a predetermined time interval when the multifunction device 1 is activated, and the activated backup application is stored on the information processing apparatus 51. A plurality of predetermined applications may be downloaded and stored in the multifunction device 1. The information processing apparatus 51 has a backup permission application that operates in the external application unit 54 and permits reading of the application of the external application unit 54 (sends the application itself to the multifunction device 1). You may comprise so that a backup permission application may be called and the application of the information processing apparatus 51 may be acquired.

<Cooperation processing flow>
Next, a processing flow when the multifunction device 1 calls an application on the information processing apparatus 51 will be described. FIG. 6 is a flowchart illustrating a flow in which the multifunction machine 1 according to the present embodiment performs processing in cooperation with an application on the information processing apparatus 51.

  When there is a user instruction input, the web browser unit 5 generates an HTTP request according to the user instruction input and inputs it to the first communication unit 6 (S1).

  The first communication unit 6 tries to connect to the information processing apparatus 51 based on the HTTP request, and when the connection is established (Yes in S2), transmits the HTTP request to the information processing apparatus 51 (S3).

  Based on the HTTP request, the information processing apparatus 51 calls an application (or web content such as HTML) as necessary to execute predetermined processing, and generates an HTTP response. The information processing apparatus 51 transmits this HTTP response to the first communication unit 6 of the multifunction machine 1 (S4).

  The first communication unit 6 that has received the HTTP response outputs the HTTP response to the web browser unit 5 and further calls the backup application of the control application unit 9 (S5).

  The backup application acquires a predetermined application (or web content) and related data from the information processing apparatus 51, and stores it in the control application unit 9 (S6).

  If the connection cannot be established within a predetermined time (No in S2), the first communication unit 6 rewrites the destination of the received HTTP request into a loopback call indicating the first web server unit 8 of the multifunction device 1, An HTTP request is transmitted to the first web server unit 8 (S7).

  If the application (or web content) specified in the HTTP request is stored in the control application unit 9 (Yes in S8), the first web server unit 8 calls the application (or web content) and performs a predetermined process. The process is executed and an HTTP response is generated. The first web server unit 8 transmits this HTTP response to the first communication unit 6 of the multifunction machine 1 (S9).

  If the application (or web content) specified in the HTTP request is not stored in the control application unit 9 (No in S8), the first web server unit 8 generates an HTTP response notifying the connection error, and the multifunction device 1 to the first communication unit 6 (S10).

[Embodiment 2]
In the present embodiment, a description will be given of a multi-function device that executes a repair mode when a connection cannot be established via a network. For convenience of explanation, members and configurations having the same functions as those in the drawings described in the first embodiment are given the same reference numerals, and detailed descriptions thereof are omitted.

<Configuration of MFP control system>
As in the first embodiment, the multi-function device 21 according to the present embodiment transmits an HTTP request to the information processing apparatus 51 connected via the network, and performs processing such as user authentication. The multi-function device 21 performs processing and screen display according to the processing result of the information processing device 51.

  When the MFP 21 of the present embodiment is connectable (communicable) with the information processing apparatus 51, data such as HTML of various operation screens generated by the information processing apparatus 51, authentication information input by the user, and the like. When the connection with the information processing apparatus 51 cannot be established (when communication is not possible) stored in the multifunction device 21, using the stored HTML data of various operation screens, authentication information, etc. Perform user authentication.

  FIG. 7 is a block diagram showing a schematic configuration of the MFP control system of the present embodiment. As shown in FIG. 7, the multifunction device 21 includes an image reading unit 2, an image forming unit 3, an operation unit 4, a web browser unit 5, a first communication unit 22, a device control unit 7, 1 web server unit 8 and control application unit (application execution unit) 23.

  FIG. 8 is a block diagram illustrating a schematic configuration of the control application unit 23. The control application unit 23 includes applications that can be executed by the control application unit 23 such as a screen data storage application, an authentication information acquisition application, a relief mode execution application, and a job recording application, and includes a storage unit that stores data. Further, the control application unit 23 has a control application such as a copy application for causing the multifunction peripheral to execute a function.

<User authentication process>
As in the first embodiment, it is assumed that user authentication is required when executing copy processing of a document. When the MFP 21 is activated, the web browser unit 5 sends an HTTP request for accessing a predetermined URL of the information processing device 51 via the first communication unit 22 in order to obtain an initial operation screen from the information processing device 51. To the information processing apparatus 51.

  The information processing apparatus 51 that has received the HTTP request generates an HTML code for the initial operation screen and transmits it to the multi-function device 21 as an HTTP response.

  The first communication unit 22 of the multi-function device 21 that has received the HTTP response from the information processing device 51 outputs the HTTP response to the web browser unit 5, and at the same time includes the HTTP response from the information processing device 51 as information. An HTTP request addressed to the screen data storage application stored in the control application unit 23 of the machine 21 is generated and output to the first web server unit 8. That is, the HTTP request addressed to the screen data storage application includes the HTML code of the initial operation screen and the URL of the information processing apparatus 51 for acquiring the initial operation screen as information.

  The first web server unit 8 that has received the HTTP request from the first communication unit 22 calls the screen data storage application of the control application unit 23 according to the request.

  The screen data storage application uses the HTML code (screen data) of the initial operation screen included in the HTTP request from the first communication unit 22 and the URL (or its URI) of the information processing apparatus 51 for acquiring the initial operation screen. The data is stored in the storage unit of the control application unit 23 in association with each other. Further, when the argument is set when the web browser unit 5 accesses the URL of the information processing apparatus 51, the argument is stored in association with the screen data and the URL.

  On the other hand, the web browser unit 5 that has received the HTTP response from the information processing apparatus 51 interprets the HTTP response and displays the initial operation screen shown in FIG. 3 on the display unit 10.

  The user instructs the MFP 21 (see FIG. 7) to copy the original by pressing the authentication button 62 (see FIG. 3) on the operation screen via the touch panel. The input unit 11 outputs a user instruction input to the web browser unit 5. The authentication button instructs to call an authentication application by the external server 51, and instructs to access the URL “http: //xxx.123.123.123/app/auth”. The web browser unit 5 outputs an HTTP request for accessing the URL “http: //xxx.123.123.123/app/auth” to the first communication unit 22. The first communication unit 22 transmits an HTTP request to the server 51 with the IP “xxx.123.123.123” via the network 50 in accordance with the HTTP request.

  When receiving the HTTP request from the multifunction device 21, the second communication unit 52 of the server 51 outputs the HTTP request to the second web server unit 53 provided in the server 51. The second web server unit 53 that has received the HTTP request from the multi-function device 21 transmits a call for calling the authentication application indicated by the URI “app / auth” to the external application unit 54 in accordance with the HTTP request.

  The external application unit 54 executes a plurality of applications that perform various processes. The authentication application is executed by the external application unit 54 and generates data of an authentication information input screen that prompts input of authentication information to be displayed on the display unit 10 of the multi-function device 21. Specifically, the authentication application generates an HTML code shown in FIG. The second web server unit 53 receives an HTML code from the authentication application, and outputs it to the second communication unit 52 as an HTTP response. The second communication unit 52 transmits an HTTP response to the multifunction device 21 via the network 50.

  The first communication unit 22 of the multi-function device 21 outputs this HTTP response to the web browser unit 5 at the same time as acquiring the initial operation screen, and at the same time includes the HTTP response from the information processing device 51 as information. An HTTP request addressed to the screen data storage application stored in the control application unit 23 of the machine 21 is generated and output to the first web server unit 8.

  The screen data storage application called by the first web server unit 8 includes the HTML code of the authentication information input screen and the URL “http: //xxx.123.123.123/app/auth” (or URI “app / auth” of the authentication application). ]) In association with each other and stored in the storage unit of the control application unit 23.

  On the other hand, the web browser unit 5 that has received the HTTP response from the information processing apparatus 51 interprets the HTTP response and displays the authentication information input screen shown in FIG. 4B on the display unit 10.

  In order to perform user authentication, the user inputs a user ID (login name) and a password in the input box of the authentication information input screen shown in FIG. 5, authentication information (user ID and password) is transmitted to the information processing apparatus 51 as an HTTP request.

  When the authentication application operating in the external application unit 54 of the information processing apparatus 51 receives authentication information from the multifunction device 1, the user included in the authentication information is referred to the user list registered in advance in the information processing apparatus 51. If the user list includes the password pair, it is determined that the user authentication is successful, and otherwise, it is determined that the user authentication has failed.

  If the user authentication fails, the authentication application generates an HTML code of an authentication information input screen that prompts re-input of the user ID and password, and transmits the generated HTML code to the multifunction device 1 as an HTTP response. When user authentication fails, information of a predetermined keyword (character string) indicating that user authentication has failed is included in, for example, a header of this HTTP response.

  Similarly, the first communication unit 22 of the multi-function peripheral 21 outputs the HTTP response to the web browser unit 5 and simultaneously generates an HTTP request addressed to the screen data storage application including the HTTP response from the information processing device 51 as information. And output to the first web server unit 8. Similarly, the screen data storage application called by the first web server unit 8 includes the HTML code of the authentication information input screen that prompts re-input of the user ID and password, and the URL “http: // of the authentication application of the information processing apparatus 51. xxx.123.123.123 / app / auth ”(or URI“ app / auth ”) is stored in the storage unit of the control application unit 23 in association with each other. Further, when the argument is set when the web browser unit 5 accesses the URL of the information processing apparatus 51, the argument is stored in association with the screen data and the URL. Further, information indicating that the screen data is an operation screen shown to the user when the user authentication fails is stored in association with the screen data.

  If the user authentication is successful, the authentication application transmits an HTTP response indicating the authentication success to the multi-function device 21. As a specific example, when the user authentication is successful, the authentication application generates an HTML code of an operation screen for executing a function requiring authentication as shown in FIG. Send to. If the user authentication is successful, the HTTP response includes, for example, a header with a predetermined keyword (character string) indicating that the user authentication was successful, the authenticated user ID, and the password. As a result, the first communication unit 22 that has received this HTTP response can identify that the user authentication has been successful. Note that the user ID and password may be encrypted by a predetermined encryption method (for example, MD5, SHA-1, etc.).

  The first communication unit 22 of the multi-function device 21 outputs this HTTP response to the web browser unit 5. In addition, the first communication unit 22 of the multifunction device 21 checks whether or not the HTTP response includes a predetermined keyword indicating that the user authentication is successful, and the predetermined keyword indicating that the user authentication is successful. Is included, an HTTP request addressed to the authentication information acquisition application stored in the control application unit 23 is generated and output to the first web server unit 8. This HTTP request includes an HTTP response from the information processing apparatus 51 as information.

  The authentication information acquisition application receives the HTTP request from the first communication unit 22, and stores the combination of the user ID and password included in the HTTP request as a user list in the multifunction device 21 as a user list in the control application unit 23. To remember. Further, the authentication information acquisition application uses the screen data (HTML code and image of the operation screen) included in the HTTP request as the operation screen shown to the user when the user authentication is successful, and the user when the user authentication is successful. Are stored in correspondence with the information indicating that the operation screen shown in FIG.

  Further, the web browser unit 5 of the multi-function device 21 interprets the HTML code received from the first communication unit 22 and causes the display unit 10 to display an operation screen as shown in FIG.

  As described above, the screen data storage application receives, as data, the HTTP response received from the information processing apparatus 51 by the first communication unit 22 of the multifunction machine 1 as a data, and the screen included in the HTTP response from the information processing apparatus 51. The data (for example, HTML code of the operation screen) and the information (URL or URI) of the application of the information processing apparatus 51 that has transmitted the HTTP response are stored in the storage unit of the control application unit 23 in association with each other. The stored data is used as alternative display data when the MFP 21 cannot establish a connection with the information processing apparatus 51, and is displayed on the display unit 10 by the web browser unit 5.

  The authentication information acquisition application receives, as data, an HTTP response indicating that the user authentication received from the information processing apparatus 51 by the first communication unit 22 of the multifunction device 1 is an HTTP request, and the authentication included in the HTTP request is received. The successful user ID and password pair is stored in the storage unit of the control application unit 23 as a user list in the multifunction device 21. This user list in the multifunction device 21 is used for user authentication as an alternative user list when the multifunction device 21 cannot establish a connection with the information processing apparatus 51. The registered user ID and password set may be set to be valid only within a predetermined time. The authentication information acquisition application may be configured to acquire authentication information and store it in the storage unit of the control application unit 23 not only when the user authentication is successful, but also when executing a job (such as a copy process) after the user authentication is successful. Good.

  Further, the control application unit 23 may have a configuration having a screen data acquisition application (not shown). For example, when the multifunction device 21 is turned on and the multifunction device 21 is activated, the device control unit 7 calls the screen data acquisition application of the control application unit 23 via the Open I / F unit 71. The called screen data acquisition application transmits an HTTP request for accessing a predetermined URL to the information processing apparatus 51 via the first web server unit and the first communication unit 22. The information processing apparatus 51 that has received the HTTP request generates an HTML code of a screen corresponding to the URL, and transmits the generated HTML code to the multifunction device 21 as an HTTP response. The first communication unit 22 of the multi-function device 21 that has received the HTTP response from the information processing device 51 sends the HTTP response from the information processing device 51 to the control application unit 23 of the multi-function device 21 via the first web server unit 8. Output to stored screen data acquisition application. The screen data acquisition application stores the HTML code (screen data) of the screen corresponding to the URL included in the received HTTP response and the URL (or its URI) in association with each other in the storage unit. In this way, the information processing apparatus 51 can be accessed when the multifunction device 21 is activated, and the screen data can be stored in the multifunction device 21. The screen data acquisition application may be called at an arbitrary timing. For example, the device control unit 7 may call the screen data acquisition application at a predetermined time or at a predetermined time interval. Further, when each application or screen data included in the information processing device 51 is updated, the information processing device 51 transmits an update notification to the multifunction device 21, and the multifunction device 21 that receives the update notification calls the screen data acquisition application. It may be configured to.

<User authentication process when connection cannot be established>
Next, a case where a connection cannot be established between the multifunction device 21 and the information processing apparatus 51 will be described. Assume that the initial operation screen shown in FIG. 3 is displayed on the display unit 10 and the user selects the authentication button 62 at a stage where user authentication has not yet been completed. The first communication unit 22 (see FIG. 7) sends an HTTP request including an access request to the URL “http: //xxx.123.123.123/app/auth” (authentication application on the information processing device 51) to the information processing device. 51.

  If the connection between the MFP 1 and the information processing apparatus 51 via the network 50 cannot be established due to some cause, the first communication unit 22 cannot obtain a normal response from the information processing apparatus 51. If the connection cannot be established within a predetermined time, the first communication unit 22 stops the connection to the information processing apparatus 51 and selects a rescue mode execution application that operates on the control application unit 23 of the multifunction device 21. An HTTP request to be called is transmitted to the first web server unit 8 of the multifunction device 21. The HTTP request transmitted to the first web server unit 8 includes information of an HTTP request for calling an authentication application on the information processing device 51 transmitted from the web browser unit 5, that is, authentication on the information processing device 51. Contains information such as the URL of the application.

  The first web server unit 8 that has received the HTTP request from the first communication unit 22 calls the rescue mode execution application on the control application unit 23.

  The relief mode execution application stores a history of authentication information stored in the control application unit 23 (a combination of a user ID and a password that has been successfully authenticated before) when the MFP 21 cannot establish a connection with the information processing apparatus 51. (User list) is used to perform alternative user authentication. In addition, the relief mode execution application, when the MFP 21 cannot establish a connection with the information processing device 51, stores the screen data stored in the control application unit 23 (previously received from the information processing device 51, by the web browser unit 5. Using the HTML code or the like of the operation screen displayed on the display unit 10, alternative screen data is provided to the web browser unit 5 and displayed on the display unit 10.

  When the user selects the authentication button 62 (see FIG. 3), the HTTP request received by the relief mode execution application includes information on the URL of the authentication application on the information processing apparatus 51. The relief mode execution application checks whether the URL (or URI) included in the HTTP request matches the application information (URL or URI) stored in the control application unit 23 in the past, and stores the matching information. If there is application information, the screen data stored correspondingly is acquired, and the acquired screen data is transmitted to the web browser unit 5 as an HTTP response. In this case, the data on the authentication information input screen shown in FIG. 4B is transmitted to the web browser unit 5. In order to notify the user that the current process is being executed in the relief mode, the relief mode execution application indicates to the screen data transmitted to the web browser section 5 that the relief mode is being executed. Part of the screen display may be changed. The display indicating that the rescue mode is being executed may be performed, for example, by changing the background color of the screen, adding, changing or blinking an image (icon) displayed on the screen, adding or changing characters. The display indicating that the rescue mode is being executed (change of the background color of the screen, etc.) is changed by the screen data storage application to the screen data when the screen data storage application stores the screen data in the storage unit. May be added.

  If the connection cannot be established within a predetermined time, the first communication unit 22 sends an HTTP request for starting the job recording application operating on the control application unit 23 of the multifunction device 21 to the first function of the multifunction device 21. 1 Transmit to the web server unit 8. Normally, the multifunction device 21 transmits the history of the executed job (processing such as scanning or printing) to the information processing device 51, and the information processing device 51 stores the job and user authentication history in a database. Thereby, the usage frequency of the multifunction device 21 for each user or for each process can be confirmed. The job recording application stores the job executed by the multifunction device 21 and the history of user authentication while the connection between the multifunction device 21 and the information processing device 51 cannot be established, and the connection with the information processing device 51 is restored. Later, a job and user authentication history is transmitted to the information processing apparatus 51. Thereby, the information processing apparatus 51 can obtain the usage history of the multifunction device 21 while the connection with the multifunction device 21 was disconnected. The started job recording application stores the executed job and the history of user authentication, for example, tries to connect to the information processing device 51 every predetermined period, and when the connection with the information processing device 51 is established, The job and user authentication history is transmitted to the information processing apparatus 51, and the process ends. As a result, the information processing apparatus 51 can accurately store the usage history record.

  Next, when a user inputs a user ID and a password and inputs authentication information in order to perform user authentication, the first communication unit 22 that has received an HTTP request including the authentication information from the web browser unit 5 Attempts to send an HTTP request to the information processing device 51. If the connection cannot be established within a predetermined time, the first communication unit 22 stops the connection to the information processing device 51 and performs the control on the control application unit 23 of the multifunction device 21 as in the previous case. An HTTP request for calling an operating relief mode execution application is transmitted to the first web server unit 8 of the multi-function device 21. This HTTP request transmitted to the first web server unit 8 includes information of an HTTP request for calling an authentication application on the information processing apparatus 51 transmitted from the web browser unit 5 and includes authentication information (user ID) input by the user. And password).

  The first web server unit 8 that has received the HTTP request from the first communication unit 22 calls the rescue mode execution application on the control application unit 23.

  The relief mode execution application performs alternative user authentication when authentication information is included in the HTTP request. At this time, the set of user ID and password included in the HTTP request is in the history of authentication information stored in the control application unit 23 (the user list storing the set of user ID and password that has been successfully authenticated before). If it is included, it is assumed that user authentication has succeeded. If it is not included, it is assumed that user authentication has failed.

  When the alternative user authentication is unsuccessful, the rescue mode execution application acquires screen data associated with information indicating the operation screen shown to the user when the user authentication is unsuccessful from the control application unit 23. Then, an HTTP response including the screen data is generated, and the HTTP response is transmitted to the web browser unit 5 via the first communication unit 22.

  Alternatively, if the user authentication fails, the rescue mode execution application may generate operation screen data that permits the copy operation by limiting the number of copies, and may return an HTTP response to the web browser unit 5. By configuring as described above, the multifunction device 21 is a legitimate user, but it is possible to ensure the convenience of the user whose user ID and password are not recorded in the user list on the multifunction device 21.

  When the alternative user authentication is successful, the rescue mode execution application acquires screen data associated with information indicating the operation screen shown to the user when the user authentication is successful from the control application unit 23. Then, an HTTP response including the screen data is generated, and the HTTP response is transmitted to the web browser unit 5 via the first communication unit 22. As a result, the user who has succeeded in the alternative user authentication can continuously cause the multifunction device 21 to execute the process. Since the subsequent processing is the same, description thereof is omitted.

  Even when the connection with the information processing apparatus 51 cannot be established, the multi-function device 21 according to the present embodiment can perform an alternative user authentication process using the screen data and authentication information previously acquired from the information processing apparatus 51. . Further, since the multifunction device 21 uses the screen data acquired from the information processing device 51, the same operation screen and operation procedure as those of the information processing device 51 can be provided to the user. Therefore, user operability is not impaired even in alternative user authentication processing. Further, even when the authentication application of the information processing apparatus 51 is updated (or changed), the information processing apparatus 51 performs the alternative user authentication process performed in the multifunction peripheral 21 without changing the application of the multifunction peripheral 21 or the like. The same operation screen and operation procedure as that provided can be provided to the user.

<User authentication processing flow>
Next, taking a user authentication process as an example, a processing flow when the multifunction device 21 calls an application on the information processing apparatus 51 will be described. FIG. 9 and FIG. 10 are flowcharts showing the flow of user authentication processing of the multifunction device 21 in this embodiment.

  When a user authentication start instruction is input, the web browser unit 5 obtains an HTTP request for accessing a predetermined URL for acquiring the authentication information input screen from the information processing apparatus 51 in order to acquire the authentication information input screen. It produces | generates and inputs into the 1st communication part 22 (S21).

  The first communication unit 22 tries to connect to the information processing device 51 based on the HTTP request, and when the connection is established (Yes in S22), the first communication unit 22 transmits the HTTP request to the information processing device 51 (S23).

  Based on the HTTP request, the information processing apparatus 51 generates an HTTP response including data on the authentication information input screen. The information processing apparatus 51 transmits this HTTP response to the first communication unit 22 of the multifunction machine 21 (S24).

  The first communication unit 22 that has received the HTTP response outputs the HTTP response to the web browser unit 5, and further calls the screen data storage application of the control application unit 23 (S25).

  The screen data storage application stores the authentication information input screen data included in the HTTP response received by the first communication unit 22 in the storage unit of the control application unit 23 (S26).

  When the connection cannot be established within a predetermined time (No in S22), the first communication unit 22 calls the rescue mode execution application of the control application unit 23 (S27). In addition, the first communication unit 22 activates the job recording application of the control application unit 23 (S28). The started job recording application stores the executed job and the history of user authentication, attempts to connect to the information processing apparatus 51 every predetermined period, and executes when the connection with the information processing apparatus 51 is established. The processed job and user authentication history are transmitted to the information processing apparatus 51, and the process is terminated.

  The rescue mode execution application checks whether screen data corresponding to a predetermined URL for acquiring the authentication information input screen from the information processing apparatus 51 is stored in the control application unit 23. When screen data corresponding to a predetermined URL is stored in the control application unit 23 (Yes in S29), the rescue mode execution application generates an HTTP response including the screen data (authentication information input screen data), The first web server unit 8 transmits this HTTP response to the first communication unit 22 of the multifunction machine 21 (S30).

  The first communication unit 22 that has received the HTTP response outputs the HTTP response to the web browser unit 5 (S31).

  When the screen data corresponding to the predetermined URL is not stored in the control application unit 23 (No in S29), the rescue mode execution application generates an HTTP response notifying the connection error, and the first communication unit of the multifunction device 21 22 (S32), and the process ends.

  After S26 or S31, the web browser unit 5 shows the received authentication information input screen to the user, and accepts input of authentication information by the user (S33). When the user inputs authentication information, the web browser unit 5 generates an HTTP request for accessing the authentication application of the information processing apparatus 51 and inputs the HTTP request to the first communication unit 22 in order to perform user authentication processing (S34). ). This HTTP request includes authentication information (user ID and password) input by the user.

  Based on the HTTP request, the first communication unit 22 tries to connect to the information processing apparatus 51. When the connection is established (Yes in S35), the first communication unit 22 transmits the HTTP request to the information processing apparatus 51 (S36).

  Based on the HTTP request, the information processing apparatus 51 calls an authentication application to execute user authentication processing, and generates an HTTP response corresponding to the result of user authentication. The information processing apparatus 51 transmits this HTTP response to the first communication unit 22 of the multifunction machine 21 (S37).

  When the HTTP response received by the first communication unit 22 indicates successful user authentication (Yes in S38), the first communication unit 22 calls the authentication information acquisition application of the control application unit 23 (S39). In addition, the first communication unit 22 outputs the received HTTP response to the web browser unit 5.

  The authentication information acquisition application stores authentication information (a combination of a user ID and a password) that has been successfully authenticated as a user list in the multifunction device 21 in the storage unit of the control application unit 23. In addition, the authentication information acquisition application indicates that the screen data (such as the HTML code of the operation screen) included in the HTTP response received by the first communication unit 22 is an operation screen that is shown to the user when the user authentication is successful. The information is stored in the storage unit of the control application unit 23 in association with the information (S40).

  When the HTTP response received by the first communication unit 22 indicates a failure of user authentication (No in S38), the first communication unit 22 calls the screen data storage application of the control application unit 23. The screen data storage application indicates that the screen data (such as the HTML code of the operation screen) included in the HTTP response received by the first communication unit 22 is an operation screen that indicates to the user when the user authentication fails. The information is stored in the storage unit of the control application unit 23 in association with the information shown (S41). Further, the first communication unit 22 outputs the received HTTP response to the web browser unit 5, and accepts re-input of authentication information by the user (returns to S33).

  If the connection cannot be established within the predetermined time (No in S35), the first communication unit 22 calls the rescue mode execution application of the control application unit 23 and passes the authentication information input by the user (S42). Also, the first communication unit 22 activates the job recording application of the control application unit 23 (S43). The started job recording application stores the executed job and the history of user authentication, attempts to connect to the information processing apparatus 51 every predetermined period, and executes when the connection with the information processing apparatus 51 is established. The processed job and user authentication history are transmitted to the information processing apparatus 51, and the process is terminated.

  The relief mode execution application checks whether or not the authentication information input by the user is included in the user list stored in the control application unit 23, and if it is included, the user authentication is determined to be successful. Otherwise, it is determined that the user authentication has failed.

  When the user authentication by the rescue mode execution application is successful (Yes in S44), the rescue mode execution application displays screen data associated with information indicating that the operation screen is displayed to the user when the user authentication is successful. Obtained from the control application unit 23. The relief mode execution application generates an HTTP response including the screen data, and transmits the HTTP response to the web browser unit 5 via the first communication unit 22 (S45).

  When the user authentication by the rescue mode execution application fails (No in S44), the rescue mode execution application displays screen data associated with information indicating that the operation screen is displayed to the user when the user authentication fails. Obtained from the control application unit 23. The rescue mode execution application generates an HTTP response including the screen data, and transmits the HTTP response to the web browser unit 5 via the first communication unit 22 (S46).

  After S46, the web browser unit 5 displays an authentication information input screen on the display unit 10, and accepts re-input of authentication information by the user (returns to S33).

  After S40 or S45, the web browser unit 5 displays an operation screen on which the user authentication has been completed on the display unit 10 based on the screen data included in the received HTTP response (S47).

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  Finally, each block of the MFPs 1 and 21 and the information processing apparatus 51, particularly the web browser unit 5, the first communication unit 6 and 22, the first web server unit 8, the control application unit 9 and 23, and the second communication unit 52. The second web server unit 53 and the external application unit 54 may be configured by hardware logic, or may be realized by software using a CPU (central processing unit) as follows.

  That is, the MFPs 1 and 21 and the information processing apparatus 51 include a CPU that executes instructions of a control program for realizing each function, a ROM (read only memory) that stores the program, and a RAM (random access memory) that expands the program. ), A storage device (recording medium) such as a memory for storing the program and various data. The object of the present invention is to enable a computer to read program codes (execution format program, intermediate code program, source program) of control programs for the multifunction machines 1 and 21 and the information processing apparatus 51, which are software for realizing the functions described above. The recording medium recorded in the above is supplied to the multifunction devices 1 and 21 and the information processing apparatus 51, and the computer (or CPU or MPU (microprocessor unit)) reads and executes the program code recorded on the recording medium. Is also achievable.

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, a CD-ROM (compact disc read-only memory) / MO (magneto-optical) / Disk systems including optical disks such as MD (Mini Disc) / DVD (digital versatile disk) / CD-R (CD Recordable), card systems such as IC cards (including memory cards) / optical cards, or mask ROM / EPROM ( An erasable programmable read-only memory) / EEPROM (electrically erasable and programmable read-only memory) / semiconductor memory system such as a flash ROM can be used.

  Further, the MFPs 1 and 21 and the information processing apparatus 51 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN (local area network), ISDN (integrated services digital network), VAN (value-added network), CATV (community antenna television) communication. A network, a virtual private network, a telephone line network, a mobile communication network, a satellite communication network, etc. can be used. In addition, the transmission medium constituting the communication network is not particularly limited. For example, IEEE (institute of electrical and electronic engineers) 1394, USB, power line carrier, cable TV line, telephone line, ADSL (asynchronous digital subscriber loop) line Wireless such as IrDA (infrared data association) and remote control such as remote control, Bluetooth (registered trademark), 802.11 wireless, HDR (high data rate), mobile phone network, satellite line, terrestrial digital network, etc. But it is available. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention can be used in a multifunction device control system including a multifunction device connected to an information processing apparatus that performs various processes via a network.

1, 21 MFP 2 Image reading unit 3 Image forming unit 4 Operation unit 5 Web browser unit (request unit)
6, 22 1st communication part (communication part)
7 device control unit 8 first web server unit 9 control application unit (application execution unit, storage unit)
10 Display unit 11 Input unit 23 Control application unit (application execution unit, storage unit, authentication information acquisition unit, job transmission unit)
50 Network 51 Information Processing Device 52 Second Communication Unit 53 Second Web Server Unit 54 External Application Unit 61 Copy Button 62 Authentication Button 63 Information 71 Open I / F Unit

Claims (12)

In a multifunction peripheral connected to an information processing device via a network,
The information processing apparatus executes a first application that performs predetermined processing in accordance with a call request from the multifunction device, and transmits predetermined screen data to the multifunction device as a response.
A request unit that generates a call request for calling the first application of the information processing device, a communication unit that transmits the call request to the information processing device, a storage unit, and a response to the call request received from the information processing device A storage unit that stores the screen data in the storage unit, a display unit that displays a screen according to the response, and an application execution unit that executes a second application that performs a predetermined process,
When the communication unit cannot establish communication with the information processing apparatus and cannot transmit the call request to the information processing apparatus, the application execution unit is stored in the storage unit by executing the second application. A multifunction device that generates a response to the call request using the screen data, and the display unit displays a screen corresponding to the response generated by the application execution unit. An authentication information acquisition unit;
The call request includes authentication information input by the user,
The first application is an application that performs user authentication using the authentication information included in the call request,
When the user authentication by the first application is successful, the authentication information acquisition unit stores the authentication information in which the user authentication is successful in the storage unit as an authentication history,
The second application is an application that performs user authentication using the authentication information included in the call request and the authentication history stored in the storage unit,
When the communication unit cannot establish communication with the information processing apparatus and cannot transmit the call request to the information processing apparatus, the application execution unit performs user authentication by executing the second application, and The multifunction device according to claim 1, wherein a response to the call request is generated using the screen data stored in the storage unit according to success or failure of authentication.   The application execution unit changes a part of the screen data stored in the storage unit by executing the second application. When the first application is called, the screen displayed on the display unit is changed. The multifunction device according to claim 1, wherein the multifunction device is made different. In a multifunction peripheral connected to an information processing device via a network,
The information processing apparatus has an application that performs a predetermined process in accordance with a call request of the multifunction device, and can execute the application.
A request unit that generates a call request for calling the application of the information processing device, a communication unit that transmits the call request to the information processing device, a storage unit, and the information when communication with the information processing device is possible A storage unit that acquires the application from a processing device and stores the application in the storage unit, and an application execution unit that can execute the stored application,
When the communication unit cannot establish communication with the information processing apparatus and cannot transmit the call request to the information processing apparatus, the application execution unit executes the application stored in the storage unit. Multifunction machine. A job transmission unit for storing a history of jobs executed by the MFP while the communication unit cannot establish communication with the information processing apparatus;
5. The composite according to claim 1, wherein the job transmission unit transmits the history to the information processing device after the communication unit establishes communication with the information processing device. Machine. In a multifunction peripheral connected to an information processing device via a network,
A web browser unit that functions as a web browser and generates a call request for calling the first application of the information processing apparatus, a communication unit, and a first web server unit that functions as a web server;
The information processing apparatus includes a second web server unit that functions as a web server,
When the communication unit can communicate with the information processing apparatus,
The communication unit transmits the call request generated by the web browser unit to the second web server unit of the information processing apparatus,
The second web server unit causes the first application to be executed in accordance with the call request from the multifunction device,
When the communication unit cannot establish communication with the information processing apparatus and cannot transmit the call request to the information processing apparatus,
The communication unit transmits the call request to the first web server unit,
The first web server unit executes a second application as an alternative to the first application in response to the call request. In a multifunction device control system including a multifunction device and an information processing apparatus connected to the multifunction device via a network,
The information processing apparatus executes a first application that performs predetermined processing in accordance with a call request from the multifunction device, and transmits predetermined screen data to the multifunction device as a response.
The multifunction device includes a request unit that generates a call request for calling the first application of the information processing device, a communication unit that transmits the call request to the information processing device, a storage unit, and the response as a response to the call request. A storage unit that stores the screen data received from the information processing apparatus in the storage unit; a display unit that displays a screen according to the response; and an application execution unit that executes a second application that performs predetermined processing. ,
When the communication unit cannot establish communication with the information processing apparatus and cannot transmit the call request to the information processing apparatus, the application execution unit is stored in the storage unit by executing the second application. A multifunction machine control system, wherein a response to the call request is generated using the screen data, and the display unit displays a screen corresponding to the response generated by the application execution unit. In a multifunction device control system including a multifunction device and an information processing apparatus connected to the multifunction device via a network,
The information processing apparatus has an application that performs a predetermined process in accordance with a call request of the multifunction device, and can execute the application.
The MFP can communicate with a request unit that generates a call request for calling the application of the information processing device, a communication unit that transmits the call request to the information processing device, a storage unit, and the information processing device. A storage unit that obtains the application from the information processing apparatus and stores the application in the storage unit, and an application execution unit that can execute the stored application.
When the communication unit cannot establish communication with the information processing apparatus and cannot transmit the call request to the information processing apparatus, the application execution unit executes the application stored in the storage unit. Multifunction machine control system. In a multifunction device control system including a multifunction device and an information processing apparatus connected to the multifunction device via a network,
The multifunction device includes a web browser unit that functions as a web browser and generates a call request for calling the first application of the information processing apparatus, a communication unit, and a first web server unit that functions as a web server.
The information processing apparatus includes a second web server unit that functions as a web server,
When the communication unit can communicate with the information processing apparatus,
The communication unit transmits the call request generated by the web browser unit to the second web server unit of the information processing apparatus,
The second web server unit causes the first application to be executed in accordance with the call request from the multifunction device,
When the communication unit cannot establish communication with the information processing apparatus and cannot transmit the call request to the information processing apparatus,
The communication unit transmits the call request to the first web server unit,
The first web server unit executes a second application as an alternative to the first application in response to the call request, and a multifunction device control system.   A program for causing a computer to function as the communication unit, the storage unit, and the application execution unit included in the multifunction machine according to claim 1.   A program for causing a computer to function as the communication unit, the web browser unit, and the first web server unit included in the multifunction machine according to claim 6.   The computer-readable recording medium which recorded the program of Claim 10 or 11.

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