File transfer system
Patent Information
- Application Number
- JP2022119672
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2022-07-27
- Publication Date
- 2025-10-24
AI Technical Summary
Existing file transfer systems do not clearly identify the source device of transferred files, leading to confusion and potential inconvenience.
A file transfer system that includes a cloud server and multiple image forming apparatuses, where the system adds device-specific information to file names during transfer, allowing users to easily identify the source device through unique character strings.
Enables users to determine the source device of transferred files, reducing confusion and minimizing inconvenience by clearly labeling file names with device-specific information.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a file transfer system that transfers a file stored in another image forming apparatus to a local image forming apparatus via a cloud server. [Background technology]
[0002] Patent document 1 describes a technology that displays a list of image forming devices connected to a cloud server, and if the user is registered on another image forming device on the list, allows the user to remotely operate that image forming device from the image forming device at hand. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] US11178225B2 Summary of the Invention [Problem to be solved by the invention]
[0004] However, while the technology described in Patent Document 1 allows a file to be transferred remotely from another image forming device to a local image forming device, there is a possibility that the image forming device from which the file was transferred may not be known, which could lead to confusion.
[0005] To provide a method for transferring a file stored in an image forming apparatus at a remote location to an image forming apparatus at hand in a state in which the image forming apparatus that transferred the file can be easily identified. [Means for solving the problem]
[0006] According to one aspect of the present invention, there is provided a file transfer system including a cloud server and a plurality of image forming apparatuses connected to the cloud server via a network, and the file transfer system transfers files between the plurality of image forming apparatuses via the cloud server, wherein each of the plurality of image forming apparatuses includes a storage unit that stores the file, a communication unit that transmits and receives files to and from the cloud server, an input receiving unit that receives instructions from a user, a display unit that displays an operation screen, and a device control unit that controls operation of the display unit, the cloud server includes a server-side storage unit that stores a device list indicating a list of the plurality of image forming apparatuses that can be accessed by the cloud server, a server control unit that controls operation of the cloud server, and a data transmission / reception unit that transmits and receives data to and from the plurality of image forming apparatuses, and in a handheld device that is an image forming apparatus operated by a user among the plurality of image forming apparatuses, the device control unit causes the display unit to display the device list received by the communication unit from the cloud server, and the input receiving unit receives instructions from and receives instructions from the user ... and when a selection instruction is received from a remote device that is the image forming device indicated by the selection instruction, the communication unit transmits an access request to the image forming device indicated by the selection instruction, and in the remote device that is the image forming device indicated by the selection instruction, the communication unit transmits a file list indicating a list of files stored in the storage unit to the remote device when the access request is received, and in the remote device, when the communication unit receives the file list, the device control unit displays the file list on the display unit, and when the input receiving unit receives a file selection instruction to select one of the files indicated in the file list, the communication unit transmits the file selection instruction to the remote device, and in the remote device, when the communication unit receives the file selection instruction, it reads out the selected file from the storage unit, and the communication unit transmits the selected file to the cloud server, and in the cloud server, when the data transmission / reception unit receives the selected file, the server control unit transmits the file andThe file name to which the information specific to the remote device that transmitted the file is added is stored in the server-side storage unit, and when the communication unit in the local device receives the file and the file name to which the information specific to the remote device is added from the data transmission / reception unit of the cloud server, the device control unit stores the file and the file name to which the information specific to the remote device is added in the storage unit. Effect of the Invention
[0007] According to the present invention, a user who operates a local device can log in to a remote device in another location and obtain a file in a user box of the remote device via a cloud server. At that time, a character string specific to the source device is added to the file name, so that the user can easily know on the local device which the file was transferred from. [Brief description of the drawings]
[0008] [Figure 1] FIG. 1 illustrates a configuration and an electrical configuration of a file transfer system. [Diagram 2] 13 is a flowchart showing the flow of a file transfer process. [Diagram 3] FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 4] FIG. 4 is a diagram showing an example of display content of a display unit. [Diagram 5] FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 6] FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 7] FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 8] FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 9] FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 10] FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 11]FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 12] FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 13] FIG. 4 is a diagram showing an example of display content of a display unit. [Figure 14] FIG. 4 is a diagram showing an example of display content of a display unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0009] A file transfer system according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the configuration and electrical configuration of a file transfer system according to an embodiment of the present invention. The file transfer system 100 includes multiple image forming devices 1a, 1b, and 1c (hereinafter, collectively referred to as "image forming devices 1" as appropriate) and a cloud server 2. The image forming devices 1 and the cloud server 2 are connected to a network N, and are capable of sending and receiving files. The number of multiple image forming devices in the file transfer system 100 is not limited.
[0010] The image forming apparatus 1 may be, for example, a multifunction machine having multiple functions such as a copy function, a printer function, a scanner function, and a facsimile function, or may be a printer, a copier, or the like.
[0011] The image forming apparatus 1 is configured to include a control unit 11, an input receiving section 12, an image reading section 13, an image forming section 14, a memory section 15, a communication section 16, and a human sensor 17. The input receiving section 12 is disposed on the front side of the device body. The input receiving section 12 is equipped with hard keys such as a decision key for confirming various operations and settings and a start key, and a display section 121. The input receiving section 12 receives various instructions based on the operation of the above keys by the user. The display section 121 displays an operation screen, messages, etc., and is configured integrally with a touch panel.
[0012] The image reading unit 13 reads an image of a document to obtain the document image. The image forming unit 14 prints the document image read by the image reading unit 13 and data stored in the memory unit 15 on paper. The memory unit 15 is an example of a "memory unit" in the claims, and is a large-capacity storage device, such as an SSD or HDD, that stores image data, various programs, data tables, and the like. The memory unit 15 stores information required for user authentication (user ID, password, etc.), and further stores a user box (part of the memory area of the memory unit 15) in which the user can save data in the image forming device 1. The communication unit 16 is composed of a communication module, etc., and transmits and receives various data to and from external devices via the network N.
[0013] A plurality of human presence sensors 17 are provided on the front side or the like of the image forming apparatus 1. The human presence sensor 17 is, for example, an infrared sensor or a reflective sensor that detects the presence of a person by emitting light such as infrared light and receiving light reflected by a person, and detects, for example, a person standing in front of the image forming apparatus 1.
[0014] When a user transfers a file from image forming device 1a (local device) to image forming device 1b (remote device) located in another location, image forming device 1b halts operation input from other users while the file transfer process is in progress. If image forming device 1b cannot be used for a long period of time, other users will feel inconvenienced. Human presence sensor 17 detects the presence of a user who is trying to use image forming device 1b.
[0015] When image forming apparatus 1b stops accepting operation input and human presence sensor 17 detects the presence of a person for a predetermined period of time (e.g., 1 to 3 minutes) or more, communication unit 16 of image forming apparatus 1b transmits a signal to image forming apparatus 1a indicating that there is a user waiting. When image forming apparatus 1a receives this signal from image forming apparatus 1b, display unit 121 displays a message informing that there is a user who wants to use image forming apparatus 1b.
[0016] The control unit 11 is composed of a processor, a RAM (Random Access Memory), a ROM (Read Only Memory), etc. The processor is a CPU (Central Processing Unit), an MPU, an ASIC, etc. The control unit 11 functions as a control unit 111, an authentication unit 112, and a file name changing unit 113 by the processor executing a control program stored in the ROM, etc. Note that each of the above-mentioned parts of the control unit 11 may be composed of a hardware circuit, regardless of the operation based on the control program.
[0017] Control unit 111 is responsible for overall operational control of image forming apparatus 1. Authentication unit 112 identifies whether or not a user is permitted to access image forming apparatus 1 based on the user's identification information (user ID, etc.) and password. File name change unit 113 reads a user-specified file from storage unit 15, and then adds information specific to image forming apparatus 1 (device name, etc.) to the file name of the file. Control unit 111 is an example of a device control unit in the claims.
[0018] The cloud server 2 has a control unit 21, a storage unit 22, and a data transmission / reception unit 23. The control unit 21 is composed of a processor, RAM, ROM, etc. The processor is a CPU, MPU, ASIC, etc. The control unit 21 functions as a control unit 211 and an authentication unit 212 by the processor executing a control program stored in the ROM, etc. Note that each of the above-mentioned parts of the control unit 21 may be composed of a hardware circuit, regardless of the operation based on the control program.
[0019] The control unit 211 is responsible for controlling the overall operation of the cloud server 2. The authentication unit 212 identifies whether or not a user is permitted to access the cloud server 2 based on the user's identification information (such as a user ID) and password. The control unit 211 is an example of a server control unit in the claims.
[0020] The storage unit 22 is a large-capacity storage device, for example, an SSD or HDD, and stores files. The files are, for example, files transmitted from an external device connected to the network N. The data transmission / reception unit 23 is composed of a communication module and the like, and transmits and receives various files to and from the external device via the network N. The storage unit 22 is an example of a server-side storage unit in the claims.
[0021] Fig. 2 is a flowchart showing the flow of file transfer processing in this embodiment. Fig. 4 to Fig. 14 are diagrams showing example screens displayed by display unit 121. Hereinafter, the image forming device 1 that is directly operated by the user is called a local device, and the image forming device 1 located at a different location from the local device is called a remote device.
[0022] When a user wants to transfer his / her own file in a remote device to a remote device, the user logs in to the cloud from the input receiving unit 12 of the remote device (S10). Figure 3 shows a login screen for the cloud server 2 displayed on the display unit 121 of the remote device.
[0023] When the control unit 111 is causing the display unit 121 to display the login screen D1, the user inputs a user ID and password via the touch panel, and when the input reception unit 12 receives a transmission instruction by pressing the OK button 51, the communication unit 16 transmits the user ID and password to the cloud server 2. In the cloud server 2, the data transmission / reception unit 23 receives the user ID and password, and the authentication unit 212 identifies whether or not the user is permitted to access the cloud server 2 based on the user ID and password. In other words, when the user ID and password match the legitimate user ID and password stored in advance, the authentication unit 212 identifies the user as permitted to access the cloud server 2.
[0024] When the authentication unit 212 of the cloud server 2 permits the login, the data transmission / reception unit 23 of the cloud server 2 transmits a cloud operation screen (an image showing a cloud operation screen; hereinafter, simply referred to as a cloud operation screen) to the remote device. FIG. 4 is a diagram showing an example of a cloud operation screen D2 displayed on the display unit 121 of the remote device. When the user presses the device check button 52, the input reception unit 12 receives an instruction to transmit a device list showing a list of image forming devices 1 that can access the cloud server 2. In accordance with this transmission instruction, the data transmission / reception unit 23 of the cloud server 2 transmits the device list to the remote device (S21). When the communication unit 16 of the remote device receives the device list, the control unit 111 causes the display unit 121 to display the device list (S11).
[0025] 5 is a diagram showing an example of a screen displaying a device list of image forming devices 1 that can access the cloud server 2, displayed on the display unit 121 of the remote device. The user visually checks the list display screen D3 and selects the image forming device 1 from which the file is to be transferred, from the device list displayed on the list display screen D3. When the user selects a device with a device name of "AAA1000", for example, and touches the check box 53 for the device name "AAA1000", the input reception unit 12 receives an instruction to select the device, and the control unit 111 causes the display unit 121 to display a check mark at the display position of the check box 53 on the list display screen D3.
[0026] When the user presses the connection button 54, the input reception unit 12 receives an access instruction, and the communication unit 16 of the remote device makes an access request to the image forming device 1 (remote device) indicated by the selection instruction (S12).
[0027] In the remote device, when the communication unit 16 receives the access request from the handheld device, the input reception unit 12 stops receiving input from other users (S30). At this time, the control unit 111 causes the display unit 121 to display a usage suspension screen D4. Fig. 6 shows an example of a screen displayed by the display unit 121 of the remote device while the handheld device is accessing the remote device.
[0028] Furthermore, the communication unit 16 of the remote device transmits a login screen D5 to the handheld device (S31). When the communication unit 16 of the handheld device receives the login screen D5, the control unit 111 causes the display unit 121 to display the login screen D1 (S13). Fig. 7 shows an example of the login screen D1 for the remote device displayed on the display unit 121 of the handheld device. At this time, the user inputs a user ID and password for logging in to the remote device into the input receiving unit 12.
[0029] When the user presses the OK button 55 after inputting the user ID and password, an authentication request is accepted by the input acceptance unit 12. The communication unit 16 of the handheld device transmits the input user ID and password, as well as an authentication request, to the remote device (S13).
[0030] In the remote device, when the communication unit 16 receives the user ID, password, and authentication request, the authentication unit 112 identifies whether or not the user is permitted to log in to the remote device based on the user ID and password. If the user ID and password match the legitimate user ID and password stored in advance, the authentication unit 112 identifies the user as permitted to log in to the remote device.
[0031] When the authentication unit 112 of the remote device identifies the user as a user permitted to log in to the remote device based on the user ID and password and permits the user to log in to the remote device, the communication unit 16 transmits a user box screen D6 to the local device (S33). Note that the user box screen D6 includes information indicating the file name and file format as accompanying information.
[0032] In the remote device, when the communication unit 16 receives the user box screen D6, the control unit 111 causes the display unit 121 to display the user box screen D6 (S14). Fig. 8 is a diagram showing an example of the user box screen D6 of the remote device. A user box is a storage area created for each user in the storage unit 15 of the image forming device 1, and temporarily stores scanned images read by the image reading unit 13, received facsimile data, etc. The user box screen D6 is a screen showing a list of each file stored in the user box for an authenticated user.
[0033] The user visually checks the user box screen D6, selects a desired file from the user box, and, for example, touches a check box indicating the desired file, for example, the check box 56 of the device name "doc0001." When the user touches the check box 56, the input acceptance unit 12 accepts a file selection instruction, and the control unit 111 causes the display unit 121 to display a check mark in the check box 56.
[0034] When the user presses upload button 57, a file transmission instruction is received by input receiving unit 12. Communication unit 16 transmits the file name of the file indicated by the file selection instruction together with the file transmission instruction to the remote device. In the remote device, when communication unit 16 receives the file transmission instruction and the file name, file name change unit 113 reads the file indicated by the file name from storage unit 15, changes the file name by adding a device-specific character string (identification information indicating the remote device), and communication unit 16 transmits the file with the changed file name to cloud server 2 (S36).
[0035] In addition, when the control unit 111 of the remote device causes the display unit 121 to display the user box screen D6 (S14), the control unit 111 may cause the user box screen D6 to be displayed in a display form (e.g., grayed-out display) indicating that a file selection instruction is not accepted for files other than a predetermined file format among the files shown in the file list on the user box screen D6. The predetermined file format is, for example, the PRN format. At this time, the input acceptance unit 12 accepts a file selection instruction only for files shown in the file list that have the predetermined file format.
[0036] In the cloud server 2, when the data transmission / reception unit 23 receives the file with the changed file name, the control unit 211 stores the file in the storage unit 22 (S22). While the communication unit 16 of the remote device is transmitting the user-specified file to the cloud, the control unit 111 of the handheld device displays, on the display unit 121, a window D7 indicating that the file is being uploaded. Fig. 9 is a diagram showing an example of the window D7 displayed on the display unit 121 of the handheld device.
[0037] The character string unique to the device is, for example, the model number or device name (such as "AAA1000") of the image forming device 1, and is a character string that can identify the device from which the file was transferred. Furthermore, in addition to the character string unique to the device, the file name change unit 113 may add to the file name the date and time when the file was read from the storage unit 15. This allows the user, when acquiring a file on a local device, to determine from the file name which remote device the file was sent from and further, at what point in time the file was read from the storage unit 15 of the remote device.
[0038] In this embodiment, as described above, the remote device includes the file name changing unit 113, the file name changing unit 113 changes the file name by adding a character string specific to the device, and the communication unit 16 transmits the file with the changed file name to the cloud server 2 (S36). Alternatively, the remote device may not include the file name changing unit 113, and the cloud server 2 may include a file name changing unit similar to the file name changing unit 113, the remote device may transmit the read file and its file name from its communication control unit 16 to the cloud server 2, and when the data transmission / reception unit 23 of the cloud server 2 receives the file and its file name, the file name changing unit of the cloud server 2 may add information specific to the remote device that transmitted the file to the file name of the received file, and the control unit 211 may store the file and the file name to which the information specific to the remote device is added in the storage unit 22. In this case, for example, the control unit 21 functions as the control unit 211, the authentication unit 212, and the file name changing unit by executing a control program including file name changing.
[0039] Also, while the user is logged in to the remote device via the handheld device, the human presence sensor 17 of the remote device detects the presence or absence of a person in front of the remote device. If the human presence sensor 17 of the remote device detects a person and the above-mentioned predetermined time or more has passed (S34; YES), the communication unit 16 of the remote device transmits information to the handheld device to notify that a user who wants to use the remote device is waiting (S35).
[0040] In the handheld device, when the communication unit 16 receives the information, the control unit 111 displays a message D8 on the display unit 121 to the user who is using the handheld device. Fig. 10 is a diagram showing an example of a display screen on which the message D8 is displayed on the display unit 121 of the handheld device at this time. By visually checking this message, the user operating the handheld device can know that there is a user who wants to use the remote device.
[0041] In the cloud server 2, when the communication unit 16 receives the file with the changed file name and the control unit 211 stores the file in the storage unit 22, the communication unit 16 transmits a user box screen D9 showing a list of files stored in the user box of the cloud server 2 at this time to the remote device (S22). In the remote device, when the communication unit 16 receives the user box screen D9, the control unit 111 displays the user box screen D9 on the display unit 121. FIG. 11 is an example of the user box screen D9 displayed on the display unit 121 of the remote device after the file specified by the user is uploaded from the remote device to the cloud server 2, and shows a screen showing a list of files stored in the cloud server 2. Icons 56 to 58 indicate the files uploaded from the remote device and stored in the storage unit 22 of the cloud server 2.
[0042] At this time, the user selects the icon of the file that the user wishes to transfer to the remote device, touches the icon of the selected file, and presses download button 59. In the case of FIG. 11, the file indicated by icon 58 has been selected by the user. When the user presses download button 59 in this state, input acceptance unit 12 accepts a file designation instruction, and communication unit 16 transmits the file designation instruction to cloud server 2.
[0043] When the data transmission / reception unit 23 of the cloud server 2 receives the above-mentioned file designation instruction, the control unit 211 reads out the file specified by the above-mentioned file designation instruction from the memory unit 22, and the data transmission / reception unit 23 transmits the read out file to the local device (S22).
[0044] In the remote device, when the communication unit 16 receives a file from the cloud server 2, the control unit 111 stores the received file in the area of the currently logged-in user box in the storage unit 15 (S15). As shown in FIG. 12, while the data transmission / reception unit 23 of the cloud server 2 is transmitting a user-specified file to the remote device, the control unit 111 of the remote device displays a display screen D10 indicating that downloading is in progress on the display unit 121. After storing the file in the storage unit 15, the control unit 111 of the remote device displays a file list D11 indicating a list of files stored in the user box of the user in the storage unit 15 of the remote device on the display unit 121. FIG. 13 is a diagram showing an example of a display screen displaying the file list D11 indicating a list of files stored in the user box of the user in the storage unit 15 of the remote device.
[0045] As shown in file list D11 in Fig. 13, the file names of the transferred files include the device name of the source device ("AAA1000" or "BBB1500"). This allows the user to immediately know the source device of these files. In addition, as shown in Fig. 14, control unit 111 may change the background color of the file name for each source device, or change the text color of the file name to display it on display unit 121, thereby allowing the user to easily distinguish the source device.
[0046] As described above, according to this embodiment, a user operating a local device can log in to a remote device in another location and obtain a file in a user box of the remote device via cloud server 2. At that time, file name changing unit 113 of the remote device adds a character string specific to the source device to the file name, so that the user can easily know on the local device which is the source device of the file.
[0047] Also, while a user logs in from the handheld device to the remote device and is performing a file transfer process, the input receiving unit 12 of the remote device stops receiving input. At this time, since the image forming device 1 is provided with a human sensor 17, the presence of a user who is about to use the remote device is detected. Furthermore, when the human sensor 17 of the remote device detects a person for a predetermined period of time or longer, the communication unit 16 of the remote device outputs information to the handheld device to notify that a user who wants to use the remote device is waiting. A message based on that information is displayed on the display unit 121 of the handheld device, so that the user can know that someone is about to use the remote device by visually checking the display.
[0048] The present invention is not limited to the configuration of the above embodiment, and various modifications are possible. In addition, in the above embodiment, the configuration and processing shown in the above embodiment using Figures 1 to 14 are merely one embodiment of the present invention, and the present invention is not limited to the configuration and processing. [Explanation of symbols]
[0049] 100 File Transfer System 1, 1a, 1b, 1c Image forming device 11 Control unit 111 Control section 112 Authentication Department 113 File name change section 12 Input reception section 121 Display section 13 Image reading unit 14 Image forming section 15 Storage section 16 Communications Department 17 Human Sensor 2. Cloud Server 21 Control unit 211 Control Unit 212 Authentication Department 22 Memory section 23 Communications Department N Network
Claims
1. A file transfer system comprising a cloud server and a plurality of image forming devices connected to the cloud server via a network, the system transferring files between the plurality of image forming devices via the cloud server, Each of the plurality of image forming devices a storage unit that stores the file; a communication unit that transmits and receives files to and from the cloud server; an input receiving unit that receives an instruction input from a user; a display unit that displays an operation screen; a device control unit that controls the operation of the display unit, The cloud server a server-side storage unit that stores a device list indicating a list of a plurality of image forming devices that can be accessed by the cloud server; a server control unit that controls the operation of the cloud server; a data transmission / reception unit that transmits and receives data to and from the plurality of image forming devices, In a handheld device which is an image forming device operated by a user among the plurality of image forming devices, the device control unit causes the display unit to display the device list received by the communication unit from the cloud server; When the input receiving unit receives a selection instruction to select one of the image forming devices shown in the device list, the communication unit transmits an access request to the image forming apparatus indicated by the selection instruction; In the remote device which is the image forming device indicated by the selection instruction, When the communication unit receives the access request, the communication unit transmits a file list of the files stored in the storage unit to the remote device; In the handheld device, When the communication unit receives the file list, the device control unit causes the display unit to display the file list; When the input receiving unit receives a file selection instruction to select one of the files shown in the file list, the communication unit transmits the file selection instruction to the remote device; In the remote device, When the communication unit receives the file selection instruction, the device control unit reads the selected file from the storage unit; the communication unit transmits the selected file to the cloud server; In the cloud server, When the data transmission / reception unit receives the selected file, the server control unit stores the file and a file name to which information specific to the remote device that transmitted the file is added in the server-side storage unit; In the handheld device, When the communication unit receives the file and the file name to which the information specific to the remote device is added from the data transmission / reception unit of the cloud server, A file transfer system in which the device control unit stores the file and the file name to which information specific to the remote device is added in the storage unit.
2. Each of the plurality of image forming devices a file name changing unit that changes the file name of the file; In the remote device, When the communication unit receives the file selection instruction, the file name changing unit reads the selected file from the storage unit and adds information specific to the remote device to the file name of the selected file; the communication unit transmits the selected file and the file name to which the information specific to the remote device is added to the cloud server; In the cloud server, 2. The file transfer system of claim 1, wherein the data transmission / reception unit receives the file name with the information specific to the remote device added along with the selected file, and the server control unit stores the selected file and the file name with the information specific to the remote device added in the server-side memory unit.
3. The cloud server a file name changing unit that changes the file name of the file; 2. The file transfer system of claim 1, wherein when the data transmission / reception unit receives the selected file, the file name change unit adds information specific to the remote device that sent the selected file to the file name of the selected file, and the server control unit stores the selected file and the file name with the information specific to the remote device added in the server-side memory unit.
4. In the handheld device, When the communication unit receives the file list and the device control unit causes the display unit to display the file list, the device control unit, among the files shown in the file list, displays a file other than a predetermined file format in a display form indicating that the file selection instruction will not be accepted; The file transfer system according to claim 1 , wherein the input receiving unit receives the file selection instruction only for files in the predetermined file format among the files shown in the file list.
5. Each of the plurality of image forming devices further comprising an authentication unit that performs login authentication of a user; In the handheld device, When the input receiving unit receives the selection instruction and user identification information used for access authentication to the remote device, the communication unit transmits the user identification information together with the access request to the image forming apparatus indicated by the selection instruction via the cloud server; In the remote device, when the communication unit receives the user identification information together with the access request, the authentication unit performs an authentication process; The file transfer system of claim 1, wherein the communication unit, when permitting login of the user indicated by the user identification information, transmits a list of files stored in the memory unit to the local device via the cloud server.
6. 6. The file transfer system according to claim 1, wherein the information specific to the remote device is a character string indicating the device name of the remote device.
7. 7. The file transfer system according to claim 6, wherein the file name changing unit of the remote device further adds, to the file name of the selected file, a character string indicating the date and time when the selected file was read from the storage unit of the remote device.
8. In the handheld device, The device control unit After storing the file received from the cloud server and the file name to which the information specific to the remote device is added in the storage unit, When the display unit is caused to display a list of files stored in the storage unit, 2. The file transfer system according to claim 1, wherein, for a file transmitted from said remote device, information indicating said remote device that is the transmission source of said file is further displayed.
9. 9. The file transfer system of claim 8, wherein the device control unit of the local device, when displaying the file list on the display unit, displays the files sent from the remote device in different display formats depending on the remote device from which the files are transferred.
10. Each of the plurality of image forming devices further includes a human presence sensor, In the remote device, the input receiving unit stops receiving operation inputs while communicating with the handheld device via the cloud server; The file transfer system of claim 1, wherein when the time that the human presence sensor has detected a person exceeds a predetermined time, the communication unit transmits information indicating that there is a waiting user to the local device via the cloud server.