JP5958617B2 - Image forming apparatus and image forming system - Google Patents

Description

  The present invention relates to an image processing apparatus and an image forming system that perform image processing on image data when an instruction from a user is received after the image data is stored in a storage unit of the image processing apparatus.

  2. Description of the Related Art Conventionally, there is a printing apparatus that has a function of acquiring data reference information and acquiring and printing data from a reference destination indicated by the reference information. For example, Patent Document 1 discloses a printing apparatus that acquires URL information for referring to a Web page, acquires print target data (content) from a Web page that is a reference destination of the URL information, and prints the data. Are known.

JP 2004-62573 A

  However, when the printing apparatus fails to acquire data from the Web page, the user again acquires URL information as reference information, and instructs to acquire and print data from the Web page indicated by the URL information. Otherwise, there is a problem that data cannot be acquired from the Web page.

  Accordingly, an object of the present invention is to provide an image processing apparatus that can acquire data from a reference destination even when acquisition of data from the reference destination indicated by the reference information fails.

  An image forming apparatus for solving this problem includes a network interface that transmits and receives data to and from a server, an image forming unit that prints an image on a sheet, a storage unit, and a control unit. Includes a first transmission process for causing the network interface to transmit a request for downloading an HTML file corresponding to the first URL stored in the storage unit to the server, and an HTML corresponding to the first URL received via the network interface. A first storage process for storing the file in the storage unit; a first determination process for determining whether or not a status code indicating a result for the request is a first status code indicating completion of the request; and a result for the request The first determination process determines that the status code is the first status code The first print processing for causing the image forming unit to print an image on a sheet based on the HTML file corresponding to the first URL stored in the storage unit, and the first determination that the status code indicating the result of the request is not the first status code. If it is determined in the process, the second determination process for determining whether or not the status code indicating the result for the request is the second status code indicating that the HTML file corresponding to the first URL has been transferred, and the result for the request When determining in the second determination process that the status code shown is the second status code, the second URL indicating the transfer destination of the HTML file corresponding to the first URL is stored in the storage unit, and the network interface , H corresponding to the second URL stored in the storage unit by the second storage process A second transmission process for transmitting a request for downloading an ML file; a third storage process for storing the HTML file corresponding to the second URL received via the network interface; and a storage section for storing the HTML file. And a second printing process for causing the image forming unit to print an image on a sheet based on the HTML file corresponding to the second URL.

  The image processing apparatus of the present invention acquires image data based on reference information. The reference information is information for specifying a data storage location, and corresponds to, for example, information described by a URL (Uniform Resource Locator). The image processing apparatus of the present invention determines whether or not the HTML file corresponding to the first URL has been transferred, and when determining that the HTML file corresponding to the first URL has been transferred, the transfer destination of the HTML file corresponding to the first URL A request for downloading an HTML file corresponding to the second URL is transmitted to the network interface, and the image forming unit is caused to print an image on a sheet based on the HTML file corresponding to the second URL.

  That is, the image processing apparatus of the present invention acquires an HTML file based on the second URL, and the user can obtain a printed matter printed based on the HTML file corresponding to the second URL. In addition, since it is not necessary for the user to input the second URL again, it is possible to reduce troublesome operations for the user.

  An image forming system including an information processing device and an image forming device according to the present invention includes an information processing device storage unit and an information processing device control unit, and the information processing device control unit includes: First transmission processing for transmitting a request for downloading an HTML file corresponding to the first URL stored in the information processing device storage unit to the server, and an HTML file corresponding to the first URL are stored in the information processing device storage unit A first storage process to be performed; a first determination process for determining whether or not a status code indicating a result for the request is a first status code indicating completion of the request; and a status code indicating a result for the request is the first status code Is determined in the first determination process, the image format is based on the HTML file corresponding to the first URL stored in the storage unit. If the first determination process determines that the status code indicating the result of the request is not the first status code in the first determination process that instructs the apparatus to print an image on paper, the status code indicating the result of the request is the first A second determination process for determining whether or not the HTML file corresponding to one URL has been transferred, and a second determination process for determining that the status code indicating the result of the request is the second status code; If the determination is made in step 2, the second storage process for storing the second URL indicating the transfer destination of the HTML file corresponding to the first URL in the storage unit, and the HTML file corresponding to the second URL stored in the storage unit by the second storage process Corresponding to the second transmission process for transmitting the request for downloading the URL and the second URL Third storage processing for storing the TML file in the information processing device storage unit and second printing for instructing the image forming device to form an image based on the HTML file corresponding to the second URL stored in the information processing device storage unit The image forming apparatus includes: a network interface that transmits and receives data to and from the information processing apparatus; an image forming unit that prints an image on paper; and an image forming apparatus control unit. The control unit receives a first print process for causing the image forming unit to print an image on a sheet in accordance with an instruction for the first print instruction process received via the network interface, and a second print received via the network interface. An image forming system that executes a second printing process that causes the image forming unit to print an image on a sheet in accordance with an instruction of the instruction process. It is out.

  Another image forming apparatus for solving this problem includes a server and a network interface for transmitting and receiving data, an image forming unit for printing an image on a sheet, a storage unit, and a control unit. The control unit includes a first transmission process for causing the network interface to transmit a request for downloading an HTML file corresponding to the first URL stored in the storage unit to the server, and the first URL received via the network interface. A first storage process for storing an HTML file corresponding to, in a storage unit; a first determination process for determining whether or not a status code indicating a result for a request is a first status code indicating other than completion of the request; If the status code indicating the result of the request is not the first status code, the first determination process is performed. If the determination is made, the first status code is a first print process for causing the image forming unit to print an image on a sheet based on the HTML file corresponding to the first URL stored in the storage unit, and the status code indicating the result for the request is the first status code. And a second determination process for determining whether or not the status code indicating the result of the request is the second status code indicating that the HTML file corresponding to the first URL has been transferred. When the second determination process determines that the status code indicating the result for the request is the second status code, the second storage process for storing the second URL indicating the transfer destination of the HTML file corresponding to the first URL in the storage unit And the second U stored in the storage unit by the second storage process in the network interface. A second transmission process for transmitting a request for downloading an HTML file corresponding to L, a third storage process for storing the HTML file corresponding to the second URL received via the network interface, in a storage unit; And a second printing process for causing the image forming unit to print an image on a sheet based on an HTML file corresponding to the second URL stored in the unit.

  According to another aspect of the present invention, an image forming system including an information processing apparatus and an image forming apparatus includes an information processing apparatus storage unit and an information processing apparatus control unit. The control unit stores a first transmission process for transmitting a request for downloading an HTML file corresponding to the first URL stored in the information processing device storage unit to the server, and an HTML file corresponding to the first URL in the information processing device storage. A first storage process to be stored in the unit, a first determination process for determining whether or not a status code indicating a result for the request is a first status code indicating other than completion of the request, and a status code indicating the result for the request Is determined not to be the first status code in the first determination process, the HTML file corresponding to the first URL stored in the storage unit The first print instruction process for instructing the image forming apparatus to print an image on the sheet and the first determination process that the status code indicating the result for the request is the first status code indicates the result for the request. Second determination processing for determining whether the status code is the second status code indicating that the HTML file corresponding to the first URL has been transferred, and the status code indicating the result for the request is the second status code. In the second determination process, the second URL indicating the transfer destination of the HTML file corresponding to the first URL is stored in the storage unit, and the second URL stored in the storage unit by the second storage process A second transmission process for transmitting a request for downloading an HTML file corresponding to the second U A third storage process for storing the HTML file corresponding to L in the information processing device storage unit, and an instruction for causing the image forming apparatus to form an image based on the HTML file corresponding to the second URL stored in the information processing device storage unit. The image forming apparatus includes a network interface that transmits and receives data to and from the information processing apparatus, an image forming unit that prints an image on paper, and an image forming apparatus control unit. The image forming apparatus control unit receives the first print processing for causing the image forming unit to print an image on a sheet according to the instruction of the first print instruction processing received via the network interface, and the network forming interface. And second print processing for causing the image forming unit to print an image on a sheet in accordance with an instruction of the second print instruction processing. Includes the system.

1 is a block diagram showing an electrical configuration of a printer according to a first embodiment of the present invention. It is a flowchart which shows the procedure of a web page printing process. It is a flowchart which shows the procedure of the retry setting process in a web page printing process. It is a flowchart which shows the procedure of the retry setting process in 2nd Embodiment of this invention. It is a flowchart which shows the procedure of the timing determination process in a retry setting process.

[First Embodiment]
Hereinafter, a first embodiment in which the image processing apparatus of the present invention is embodied will be described in detail with reference to the accompanying drawings. In this embodiment, the present invention is applied to a printer having a function of acquiring print data from a Web page and printing it.

[Printer configuration]
As shown in FIG. 1, the printer 100 (an example of a printing apparatus) according to this embodiment includes a control unit 30 including a CPU 31, a ROM 32, a RAM 33, and an NVRAM (Non Volatile RAM) 34. In addition, the control unit 30 includes an image forming unit 10 that prints an image on paper, an operation panel 40 that displays an operation status and accepts an input operation by a user, a network interface 37, a USB interface 38, and a wireless communication interface. 39 and a timer 35 for measuring time are electrically connected.

  The ROM 32 stores firmware, which is a control program for controlling the printer 100, various settings, initial values, and the like. The RAM 33 and the NVRAM 34 are used as a work area from which various control programs are read or as a storage area for temporarily storing print data. The NVRAM 34 (an example of a storage unit) is used as a storage area for storing various settings set by the user after shipment.

  The CPU 31 (an example of an acquisition unit, a determination unit, a re-acquisition unit, a reason determination unit, a setting unit, a detection unit, and a speed determination unit) stores the processing result in the RAM 33 according to a control program read from the ROM 32 and signals sent from various sensors. Alternatively, each component of the printer 100 is controlled while being stored in the NVRAM 34.

  The network interface 37 and the USB interface 38 are interfaces that enable communication with other devices. The printer 100 receives data transmitted from other devices via these interfaces.

  In this embodiment, the printer 100 can communicate with the personal computer (PC) 200 in which the printer driver 210 for the printer 100 is incorporated and the Web server 300 that stores the Web page via the network interface 37. Yes. The printer 100 constitutes a printing system 900 together with communication devices such as the PC 200 and the Web server 300.

  In addition, other devices may be used via the USB interface 38. For example, when a flash memory is attached to the USB interface 38, the flash memory can be used as a storage area. Further, when a keyboard is mounted, an input operation can be performed using the keyboard.

  The image forming unit 10 only needs to be able to print an image on a sheet, and the image forming method may be an electrophotographic method or an ink jet method. Further, color printing may be possible, or monochrome printing may be dedicated.

  The operation panel 40 also includes various buttons that accept user input and a touch panel screen that displays character information, buttons, and the like. Examples of the various buttons include an OK button for instructing the start of the printing operation, a cancel button for instructing the cancellation of the printing operation, and a character button for the user to input a Web page URL.

[Printer Control]
Next, control of the printer 100 will be described. The printer 100 according to the first embodiment acquires URL information for referring to a Web page, acquires print target data (content) from the Web page based on the URL information, and prints the content. have.

  When performing web page printing, the user first operates the operation panel 40 to input a web page printing execution instruction. When the execution instruction is input, the printer 100 displays an input screen that prompts the user to input a URL. The user inputs the URL information of the Web page on the input screen. For example, when printing information on a Web page stored in a predetermined directory of the Web server 300 (see FIG. 1), URL information including the directory path is input. Thereafter, the OK button on the operation panel 40 is pressed.

  When the OK button is pressed, the printer 100 temporarily stores the input URL information in the RAM 33, accesses a predetermined directory of the Web server 300 based on the URL information, and stores the print target data in its own memory area. Download to. Then, the downloaded print target data is printed. Note that the printer 100 erases the temporarily stored URL information from the RAM 33 when printing the print target data.

  However, the print target data to be downloaded cannot always be downloaded to the memory area of the own machine if a predetermined directory of the Web server 300 is accessed. Therefore, the printer 100 determines whether or not the print target data has been downloaded normally. When the print target data cannot be downloaded normally, the status code and the input Web code when the print target data cannot be downloaded normally are determined. The URL information of the page is stored in the memory area.

  Then, the printer 100 analyzes the status code stored in the memory area, and uses the URL information of the Web page stored in the memory area to determine a time for accessing a predetermined directory of the Web server 300, an access interval, and the like. Set (hereinafter referred to as retry setting). Thereafter, the printer 100 accesses a predetermined directory of the Web server 300 based on the retry setting (hereinafter referred to as retry, an example of a reacquisition unit).

[Status code]
(1) Status code when successfully downloaded The printer 100 determines that the print target data has been downloaded normally in response to a request to download the print target data to its own memory area. This is when the printer 100 receives the following status code.

200: OK
206: Partial Content
“200: OK” is a status code indicating completion of the request. When the status code of “200: OK” is received, the printer 100 can determine that the print target data has been successfully downloaded. Further, when the print target data is divided and downloaded, the status code “206: Partial Content” is received, so the printer 100 may determine that the print target data has been successfully downloaded.

(2) Status code when data cannot be downloaded normally On the other hand, the printer 100 determines that the data to be printed could not be downloaded normally in response to a request to download the data to be printed into its own memory area. This is when the printer 100 receives the following status code.

1XX: Processing is being continued for the request 3XX: Additional processing is required to complete the request 4XX: Incomplete request from the client 5XX: Server error The above status code is an example of a status code, However, it is not limited to these. X is a number from 0 to 9. Also, since the status code of 2XX other than the status codes of 200 and 206 is not a response to the request to download the print target data to its own memory area, the printer 100 downloads the print target data normally. You may judge that it was not possible.

  In the present embodiment, the following status code, which is described using the following status code, is specifically described as the status code when the print target data cannot be normally downloaded.

301: Moved Permanently
302: Found
303: See Other
307: Temporary Redirect
403: Forbidden
404: Not Found
408: Request Timeout
503: Service Unavailable
(3) Status code that can be immediately retried When the status code of “301 Moved Permanently”, “302 Found”, “303 See Other” and “307 Temporary Redirect” is received, the Web server 300 based on the input URL information There is a high possibility that there is no print target data in the predetermined directory. In this case, the information received from the Web server 300 may include URL information indicating the transfer destination of the print target data. If URL information indicating the transfer destination of the print target data is included, this URL information is temporarily stored in the RAM 33, the transfer destination directory is accessed, and the print target data is downloaded to the memory area of the own machine. Can do. Therefore, a retry setting is performed so as to access a predetermined directory of the Web server 300 based on URL information indicating a transfer destination of print target data. Note that since it is unlikely that a status code similar to the previously received status code will be received, it may be retried immediately after setting retry settings.

(4) Status code that can be retried in a short time In addition, when the status code “503: Service Unavailable” is received, the load on the Web server 300 is high, or the Web server 300 is temporarily maintained. There is a high possibility that it is not available. For this reason, if there is no interval before retrying, there is a high possibility that a status code similar to the previously received status code will be received, resulting in poor access efficiency. Therefore, retry setting is performed so that retry is performed at an interval before retrying.

(5) Status codes that require a long time to retry On the other hand, when the status codes of “403: Forbidden” and “404: Not Found” are received, there is a high possibility that the Web server 300 has an access right setting error or the like. At this time, it is expected that it takes about one hour or more in consideration of the time to correct the setting after the administrator of the Web server 300 is contacted. For this reason, if there is no interval before retrying, there is a high possibility that a status code similar to the previously received status code will be received, resulting in poor access efficiency.

  Also, when the status codes of “403: Forbidden” and “404: Not Found” are received, “403: Forbidden” and “404: Not Found” are compared with the status codes of “503: Service Unavailable”. ”Tends to take longer to recover from the status. Therefore, by setting the interval until retry to be longer than the status code of “503: Service Unavailable”, the interval until retry is set appropriately, and the print target data is stored in the memory area of the own machine. Can be downloaded.

(6) Status code related to communication speed When a status code of “408: Request Timeout” is received, the server is likely to time out while waiting for a request from the client. At this time, since access to the Web server 300 is concentrated, there is a high possibility that the communication speed is reduced. This status code does not necessarily reduce the possibility of receiving a similar status code just because the interval until retry is set longer. In addition, the higher the communication speed, the lower the possibility of receiving a similar status code. Therefore, if the communication speed is set to retry when the communication speed exceeds a predetermined communication speed, there is a high possibility that the print target data can be downloaded to the memory area of the own machine.

[Web page printing process]
Next, Web page printing processing for realizing the above-described Web page printing function will be described with reference to the flowchart of FIG. The Web page printing process is executed by the CPU 31 in response to accepting the pressing of the OK button after the URL information is input.

  In the Web page printing process, first, the CPU 31 acquires URL information input by the user and temporarily stored in the RAM 33, and acquires print target data based on the URL information (S101, an example of an acquisition unit). ). That is, it accesses a reference Web page stored in the URL information, and downloads print target data.

  Next, the CPU 31 determines whether or not the Web page has been successfully acquired (S102, an example of a determination unit). The determination in S102 is executed depending on whether the print target data is stored in the RAM 33 and the status code “200: OK” or “206: Partial Content” is received.

  When the CPU 31 determines that the Web page has been successfully acquired (S102: YES), the print target data stored in the RAM 33 is converted to print data such as bitmap data (S103), and the print data is sent to the image forming unit 10. In step S104, an image is printed on a sheet based on the web page printing process.

  On the other hand, when the CPU 31 determines that the Web page has not been acquired normally (S102: NO), that is, when a status code other than “200: OK” or “206: Partial Content” is received, the RAM 33 Is stored in the NVRAM 34 (S105, an example of a receiving unit). Then, a retry setting process is executed (S106), and the Web page printing process is terminated. After the URL information or the like is stored in the NVRAM 34, the URL information or the like can be deleted from the RAM 33.

  Note that after executing the retry setting process, the CPU 31 executes the retry in a process different from the Web page printing process according to the retry setting, but may execute the retry in the Web page printing process according to the retry setting. (An example of a reacquisition part).

[Retry setting process]
Next, the retry setting process (an example of the reason determination unit and the setting unit) in S106 during the Web page printing process will be described with reference to the flowchart of FIG.

  When the printer 100 fails to download the print target data based on the input URL information, it is troublesome for the user to input the URL information again. Further, since the user does not know the reason why the download failed, even if the user inputs the URL information again, the download may further fail. For this reason, it is difficult to download the print target data at an appropriate timing. Therefore, the printer 100 sets a retry timing by retry setting processing.

  In the retry setting process, first, the CPU 31 acquires a status code from the NVRAM 34 (S201), and determines whether there is URL information indicating a transfer destination of the print target data (S202, an example of a reason determination unit and an authentication unit). . The determination in S202 is executed based on whether or not the status codes “301 Moved Permanently”, “302 Found”, “303 See Other”, and “307 Temporary Redirect” are received.

  When it is determined that there is URL information indicating the transfer destination of the print target data (S202: YES), the CPU 31 refers to the URL information indicating the transfer destination and sets the retry immediately (S206, setting unit). Example), the retry setting process is terminated.

  Here, even if the status code is received, there is not necessarily a problem with the Web server 300 or the communication speed. For example, the status code may include a transfer destination URL as described above, and control suitable for the status code cannot be performed even if control for solving the trouble of the Web server 300 is performed. Therefore, when the status code is a status code including the URL of the transfer destination, the retry is immediately executed with reference to the URL information indicating the transfer destination. Note that an embodiment with only the status code determined in S202 may be used.

  On the other hand, when it is determined that there is no URL information indicating the transfer destination of the print target data (S202: NO), the CPU 31 determines whether it is a temporary error (S203, an example of a reason determination unit and an authentication unit). The determination in S203 is executed based on whether or not the status code “503: Service Unavailable” has been received.

  If it is a temporary error (S203: YES), the CPU 31 sets the retry to be 10 minutes later (S204, an example of a setting unit), and ends the retry setting process. On the other hand, if the error is not a temporary error (S203: NO), the CPU 31 sets the retry to be one hour later (S205, an example of a setting unit), and ends the retry setting process.

  That is, when the error is a temporary error (S203: YES), the retry interval is set to be shorter than when the error is not a temporary error (S203: NO).

[Effect of the first embodiment]
As described above in detail, when the CPU 31 determines that the Web page cannot be acquired normally (S102: NO), the printer 100 of the first embodiment stores the status code and the input URL information in the NVRAM 34. Store (S105) and execute the retry setting process (S106). When the retry setting process is executed, the Web page printing process is executed according to the retry setting. Therefore, if the CPU 31 determines that the Web page has not been acquired normally (S102: NO), the CPU 31 downloads the print target data corresponding to the URL information stored in the NVRAM 34 according to the retry setting. Therefore, the CPU 31 can acquire the print target data corresponding to the URL information even when determining that the Web page cannot be normally acquired.

  If it is determined that there is URL information indicating the transfer destination of the print target data (S202: YES), there is no problem with the Web server 300, the communication speed, and the like, so the CPU 31 immediately executes the retry. (S206, an example of a setting unit), and the retry setting process ends. If it is a temporary error (S203: YES), the CPU 31 sets the retry to be 10 minutes later (S204, an example of a setting unit), and ends the retry setting process. On the other hand, if the error is not a temporary error (S203: NO), the CPU 31 sets the retry to be one hour later (S205, an example of a setting unit), and ends the retry setting process. For this reason, it is possible to retry by an appropriate method according to the reason why acquisition of print target data has failed.

Further, the determination as to whether there is URL information indicating the transfer destination of the print target data (S202) is “301 Moved Permanently”, “302 Found”, “303”.
It is executed depending on whether or not the status codes “See Other” and “307 Temporary Redirect” have been received. The determination as to whether the error is a temporary error is executed based on whether or not the status code “503: Service Unavailable” is received. For this reason, the reason for failure is determined from the status code, and the reason for failure can be determined appropriately. This increases the possibility that the print target data can be reacquired by an appropriate method according to the reason for the failure.

  When a status code of “301 Moved Permanently”, “302 Found”, “303 See Other” or “307 Temporary Redirect” is received, a predetermined directory of the Web server 300 based on the input URL information is accessed. There is a high possibility that there was no data to be printed. In this case, the information received from the Web server 300 may include URL information indicating the transfer destination of the print target data. If URL information indicating the transfer destination of the print target data is included, this URL information is temporarily stored in the RAM 33, the transfer destination directory is accessed, and the print target data is downloaded to the memory area of the own machine. Can do. For this reason, there is a high possibility that the print target data can be reacquired based on the URL information indicating the transfer destination.

  When the error is a temporary error (S203: YES), the retry interval is set to be shorter than when the error is not a temporary error (S203: NO). For this reason, the printer 100 can retry earlier when it is a temporary error (S203: YES) than when it is not a temporary error (S203: NO).

[Second Embodiment]
The second embodiment of the present invention differs from the first embodiment in the retry setting process. In the second embodiment, the retry setting process includes a timing determination process, but the Web page printing process is the same as that in the first embodiment. In the retry setting process of the first embodiment, the retry interval is changed according to the status code. In the retry setting process of the second embodiment, when downloading of print target data fails due to a timeout, the print target data is downloaded at a predetermined communication speed that does not cause a timeout.

[Retry setting process]
A retry setting process (an example of a reason determining unit and an example of a setting unit) of the second embodiment during the Web page printing process will be described with reference to the flowchart of FIG.

  In the retry setting process, first, the CPU 31 acquires a status code from the NVRAM 34 (S301), and determines whether or not a timeout has occurred (S302, an example of a reason determination unit). The determination in S302 is executed based on whether or not the status code “408: Request Timeout” has been received.

  When determining that the time-out has not occurred (S302: NO), the CPU 31 ends the retry setting process.

  On the other hand, if the CPU 31 determines that a time-out has occurred (S302: YES), the CPU 31 executes a timing determination process (S303, an example of a setting unit), and ends the retry setting process.

[Timing determination process]
Next, the timing determination process (an example of a setting unit) in S203 during the retry setting process will be described with reference to the flowchart of FIG.

  In the timing determination process, the communication speed with the Web server 300 is acquired by executing Ping, and when a predetermined communication speed stored in advance in the NVRAM 34 is reached, a predetermined directory of the Web server 300 is accessed. The predetermined communication speed is, for example, an average value of communication speeds when a status code such as “200: OK” is received.

  Here, Ping is a diagnostic command for a network using Echo Message / Echo Reply Message, a communication protocol used on the Internet, called ICMP (Internet Control Message Protocol). When Ping is executed, an Echo request packet is transmitted to the designated IP address of the Web server 300, and the Echo request packet is returned as it is from the Web server 300 to the printer 100. At this time, the communication speed can be obtained based on the data amount of the Echo request packet and the time from when the Echo request packet is transmitted until the Echo request packet is returned.

  In the timing determination process, first, the CPU 31 executes Ping, accesses the Web server 300 by transmitting an Echo request packet to the Web server 300 (S401), transmits the Echo request packet to the Web server 300, and then selects Echo. The response time until the request packet is returned is measured (S402).

  Next, the CPU 31 obtains the communication speed based on the data amount of the Echo request packet and the response time from when the Echo request packet is transmitted until the Echo request packet is returned, and detects the communication speed (S403, detection). Part).

  Then, the CPU 31 determines whether or not the communication speed detected in S403 is equal to or higher than the predetermined communication speed (S404, an example of a speed determination unit), and determines that the detected communication speed is less than the predetermined communication speed. In the case (S404: NO), S401 to S403 are repeated until the detected communication speed becomes equal to or higher than the predetermined communication speed.

  On the other hand, if the CPU 31 determines that the communication speed detected in S403 is equal to or higher than the predetermined communication speed (S404: YES), the CPU 31 sets to retry immediately (S405), and ends the timing determination process.

[Effects of Second Embodiment]
As described above in detail, when the printer 100 of the second embodiment determines that the detected communication speed is equal to or higher than the predetermined communication speed (S404: YES), the printer 100 is set to immediately execute a retry ( S405), the timing determination process is terminated. For this reason, when the communication is not congested, that is, when the communication speed is equal to or higher than the predetermined communication speed, the retry is performed, and the possibility that the print target data can be acquired increases.

[Modification]
In addition, this embodiment is only a mere illustration and does not limit this invention at all. Therefore, the present invention can be variously improved and modified without departing from the scope of the invention. For example, the printer is not limited as long as it has a printing function, and can be applied even to a multifunction machine or a copying machine.

  The present invention can also be applied to image processing apparatuses such as PCs, smartphones, and servers. For example, in the Web page printing process, the print target data is acquired based on the URL information (S101), it is determined whether or not the Web page has been normally acquired (S102), and the print target data stored in the RAM 33 is a bit. Converting print data such as map data (S103), storing the status code temporarily stored in the RAM 33 and the input URL information in the NVRAM 34 (S105), and executing the retry setting process (S106) It may be performed by the image processing apparatus.

  In this embodiment, printing of a print job stored in the printer is started by operating the operation panel 400, but the present invention is not limited to this. For example, printing may be started according to a print command from the mobile terminal or authentication by a card reader or the like.

  In this embodiment, the URL information of the Web page is input in the printer 100, but the present invention is not limited to this. For example, URL information of a Web page may be input from the PC 200 and the URL information of the Web page may be transmitted from the PC 200 to the printer 100. The information processing apparatus that transmits the URL information of the Web page to the printer is not limited to the PC, and may be a mobile terminal such as a smartphone. Further, a portable storage medium such as a USB may store the URL information, and the printer 100 may read the URL information from the USB.

  In the present embodiment, 3XX and 4XX have been described as the status codes when the print target data has not been successfully downloaded. However, 2XX other than 200 and 206 may be used. For example, if a 2XX status code other than 200 and 206 is received, it is not an error when accessing a predetermined directory of the Web server 300 based on the URL information, and the Web page printing process may be terminated.

  In this embodiment, the time for accessing the predetermined directory of the Web server 300 based on the URL information by the status code is set immediately, 10 minutes later, or 1 hour later. The access interval may be changed by lengthening or shortening the periodic access cycle.

  In the present embodiment, when acquisition of a Web page fails, URL information is read from the RAM 33 and stored in a nonvolatile state in the NVRAM 34 (S105), but is not limited to this configuration. Any configuration may be used as long as URL information is stored until the retry is completed after acquisition of the Web page fails. For example, the URL information may be continuously stored in the temporary storage unit such as the RAM 33 until the retry is completed after the URL information is input. For example, the URL information may be stored in a flash memory attached to the USB interface 38.

  In this embodiment, the predetermined communication speed is stored in advance in the NVRAM 34. However, the data amount of the print target data is acquired, and the larger the data amount of the print target data, the higher the predetermined communication speed. You may set as follows. At this time, the NVRAM 34 stores a table in which the amount of data to be printed is associated with the communication speed. For example, in the case of an HTML file, after downloading the source text, the source text is analyzed, and the data amount of the image data linked to the HTML is acquired. Then, the communication speed corresponding to the data amount of the image data is acquired from the table, and it is determined whether or not the current communication speed exceeds the communication speed acquired from the table. When the current communication speed exceeds the communication speed acquired from the table, the print target data is downloaded to the memory area of the own machine.

  In this embodiment, when the status code of “200: OK” or “206: Partial Content” is received in S103, the CPU 31 determines that the Web page has been successfully acquired (S103). : YES), other embodiments may be used. For example, printing target data is being downloaded, or one of the status codes “301 Moving Permanent”, “302 Found”, “303 See Other”, “307 Temporary Redirect”, “403: Forbidden”, or “404: Not Found” is received When it does, it may be judged that the Web page has not been acquired normally (S103: NO).

  In the retry setting process of the second embodiment, it is determined whether or not a timeout has occurred depending on whether or not the status code of “408: Request Timeout” has been received (S302). Also good. For example, when accessing the reference Web page stored in the URL information, the timer 35 is started and a status code of “200: OK” or “206: Partial Content” is received within a predetermined time. If not, it may be determined that a timeout has occurred. This makes it possible to accurately determine whether the lack of time is the reason for the failure.

10 Image forming unit 30 Control unit 100 Printer 110 Memory area 200 PC
300 Web Server 900 Printing System

Claims (9)

A network interface for sending and receiving data to and from the server;
An image forming unit for printing an image on paper;
A storage unit;
A control unit,
The control unit
A first transmission process for causing the network interface to transmit a request for downloading an HTML file corresponding to a first URL stored in the storage unit to the server;
A first storage process for storing, in the storage unit, an HTML file corresponding to the first URL received via the network interface;
A first determination process for determining whether or not a status code indicating a result of the request is a first status code indicating completion of the request;
When it is determined in the first determination process that the status code indicating the result for the request is the first status code, an image is stored in the image forming unit based on the HTML file corresponding to the first URL stored in the storage unit. A first printing process for printing on the paper;
When it is determined in the first determination process that the status code indicating the result for the request is not the first status code, the status code indicating the result for the request indicates that the HTML file corresponding to the first URL has been transferred. A second determination process for determining whether it is a second status code;
When the second determination process determines that the status code indicating the result for the request is the second status code, the storage unit stores a second URL indicating the transfer destination of the HTML file corresponding to the first URL. A second storage process;
A second transmission process for causing the network interface to transmit a request for downloading an HTML file corresponding to the second URL stored in the storage unit by the second storage process;
A third storage process for storing the HTML file corresponding to the second URL received via the network interface in the storage unit;
An image forming apparatus that executes a second printing process for causing the image forming unit to print an image on a sheet based on an HTML file corresponding to the second URL stored in the storage unit. As the storage unit,
A volatile volatile storage;
A non-volatile non-volatile storage unit;
With
The controller is
In the first storage process, an HTML file corresponding to the first URL is stored in the volatile storage unit,
A first erasure process for erasing an HTML file corresponding to the first URL from the storage unit when it is determined in the first determination process that a status code indicating a result of the request is not the first status code; Item 2. The image forming apparatus according to Item 1. As the storage unit,
A volatile volatile storage;
A non-volatile non-volatile storage unit;
With
The controller is
Performing a fourth storage process for storing a status code indicating a result of the request in the volatile storage unit;
A status code indicating a result for the request is stored in the nonvolatile storage unit when it is determined in the first determination process that a status code indicating a result for the request is not the first status code. The image forming apparatus according to claim 1. The controller is
The image forming apparatus according to any one of claims 1 to 3, wherein a fifth storage process is executed to store the first URL transmitted from an external information processing apparatus in the storage unit. An input unit for inputting the first URL;
The controller is
5. The image forming apparatus according to claim 1, wherein a sixth storage process is executed to store the first URL input from the input unit in the storage unit. 6. A portable storage medium interface connected to the portable storage medium;
The controller is
A reading process of reading the first URL from the portable storage medium connected to the portable storage medium interface;
The image forming apparatus according to claim 1, wherein a seventh storage process for storing the first URL read by the read process in the storage unit is executed. In an image forming system including an information processing apparatus and an image forming apparatus,
Information processing device
An information processing device storage unit;
An information processing device control unit,
The information processing device control unit
A first transmission process for transmitting a request for downloading an HTML file corresponding to a first URL stored in the information processing device storage unit to a server;
A first storage process for storing an HTML file corresponding to the first URL in the information processing device storage unit;
A first determination process for determining whether or not a status code indicating a result of the request is a first status code indicating completion of the request;
When it is determined in the first determination process that the status code indicating the result for the request is the first status code, an image is stored in the image forming apparatus based on the HTML file corresponding to the first URL stored in the storage unit. A first print instruction process for instructing to print on the paper;
When it is determined in the first determination process that the status code indicating the result for the request is not the first status code, the status code indicating the result for the request indicates that the HTML file corresponding to the first URL has been transferred. A second determination process for determining whether it is a second status code;
When the second determination process determines that the status code indicating the result for the request is the second status code, the storage unit stores a second URL indicating the transfer destination of the HTML file corresponding to the first URL. A second storage process;
A second transmission process for transmitting a request for downloading an HTML file corresponding to the second URL stored in the storage unit by the second storage process;
A third storage process for storing an HTML file corresponding to the second URL in the information processing device storage unit;
Executing a second print instruction process for instructing the image forming apparatus to form an image based on an HTML file corresponding to the second URL stored in the information processing apparatus storage unit;
The image forming apparatus
A network interface for transmitting and receiving data to and from the information processing apparatus;
An image forming unit for printing an image on paper;
An image forming apparatus control unit;
The image forming apparatus control unit
A first print process for causing the image forming unit to print an image on a sheet in accordance with an instruction of the first print instruction process received via the network interface;
An image forming system that executes a second print process for causing the image forming unit to print an image on a sheet in accordance with an instruction of the second print instruction process received via the network interface. A network interface for sending and receiving data to and from the server;
An image forming unit for printing an image on paper;
A storage unit;
A control unit,
The control unit
A first transmission process for causing the network interface to transmit a request for downloading an HTML file corresponding to a first URL stored in the storage unit to the server;
A first storage process for storing, in the storage unit, an HTML file corresponding to the first URL received via the network interface;
First determination processing for determining whether a status code indicating a result of the request is a first status code indicating other than completion of the request;
When it is determined in the first determination process that the status code indicating the result for the request is not the first status code, an image is displayed on the image forming unit based on the HTML file corresponding to the first URL stored in the storage unit. A first printing process for printing on paper;
If it is determined in the first determination process that the status code indicating the result for the request is the first status code, the HTML file corresponding to the first URL is transferred as the status code indicating the result for the request A second determination process for determining whether or not the second status code indicates
When the second determination process determines that the status code indicating the result for the request is the second status code, the storage unit stores a second URL indicating the transfer destination of the HTML file corresponding to the first URL. A second storage process;
A second transmission process for causing the network interface to transmit a request for downloading an HTML file corresponding to the second URL stored in the storage unit by the second storage process;
A third storage process for storing the HTML file corresponding to the second URL received via the network interface in the storage unit;
An image forming apparatus that executes a second printing process for causing the image forming unit to print an image on a sheet based on an HTML file corresponding to the second URL stored in the storage unit. In an image forming system including an information processing apparatus and an image forming apparatus,
Information processing device
An information processing device storage unit;
An information processing device control unit,
The information processing device control unit
A first transmission process for transmitting a request for downloading an HTML file corresponding to a first URL stored in the information processing device storage unit to a server;
A first storage process for storing an HTML file corresponding to the first URL in the information processing device storage unit;
First determination processing for determining whether or not a status code indicating a result of the request is a first status code indicating other than completion of the request;
If it is determined in the first determination process that the status code indicating the result for the request is not the first status code, an image is sent to the image forming apparatus based on the HTML file corresponding to the first URL stored in the storage unit. A first print instruction process for instructing printing on paper;
If it is determined in the first determination process that the status code indicating the result for the request is the first status code, the HTML file corresponding to the first URL is transferred as the status code indicating the result for the request A second determination process for determining whether or not the second status code indicates
When the second determination process determines that the status code indicating the result for the request is the second status code, the storage unit stores a second URL indicating the transfer destination of the HTML file corresponding to the first URL. A second storage process;
A second transmission process for transmitting a request for downloading an HTML file corresponding to the second URL stored in the storage unit by the second storage process;
A third storage process for storing an HTML file corresponding to the second URL in the information processing device storage unit;
Executing a second print instruction process for instructing the image forming apparatus to form an image based on an HTML file corresponding to the second URL stored in the information processing apparatus storage unit;
The image forming apparatus
A network interface for transmitting and receiving data to and from the information processing apparatus;
An image forming unit for printing an image on paper;
An image forming apparatus control unit;
The image forming apparatus control unit
A first print process for causing the image forming unit to print an image on a sheet in accordance with an instruction of the first print instruction process received via the network interface;
An image forming system that executes a second print process for causing the image forming unit to print an image on a sheet in accordance with an instruction of the second print instruction process received via the network interface.

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