JP5333306B2 - Printing apparatus and program - Google Patents

Description

  The present invention relates to a printing apparatus and a program used in a printing system including a printing apparatus and a terminal device.

  A technique is known in which a terminal can issue a print instruction to a printer located at a remote location.

  For example, by sharing the printer among a plurality of terminals in the network, it is possible to issue a print instruction even for a terminal that is located away from the printer.

  Japanese Patent Application Laid-Open No. 2004-228561 describes a technology that allows printing from a printer that exists in a different LAN (Local Area Network) regardless of the printer that exists in the same network. Specifically, the terminal converts print data into data in an e-mail format and transmits the data to a printer in a different LAN using SMTP.

Japanese Patent Laid-Open No. 10-187370

  However, if it is possible to give a print instruction to a printer located at a location remote from the terminal, there is a risk that unauthorized printing may be performed by using this. For example, a malicious person may cause a large amount of print data to be printed by a printer located at a remote location in order to consume consumables such as printing paper, ink, and toner. Moreover, there is a possibility that a malicious person intentionally sends a suspicious document to a printer located at a remote location. Therefore, it is necessary to suppress such illegal printing.

  Therefore, an object of the present invention is to provide a printing apparatus and a program that can suppress the occurrence of unauthorized printing by enabling printing at least when the terminal device is located at a short distance from the printing apparatus. To do.

  The printing apparatus of the invention made to achieve such an object is a printing apparatus used in a printing system including a printing apparatus and a terminal device, and the first authentication information with a valid period set for each valid period. Generating means, output means for outputting the first authentication information generated by the generating means for providing to the terminal device existing at a short distance from the printing device, and printing of the terminal device Print data receiving means for receiving print data according to instructions; print execution means for executing printing using the print data; and the first authentication information acquired by the terminal device being output to the output means. And an execution control unit that causes the print execution unit to execute printing using the print data when the terminal device is authenticated.

  Accordingly, the terminal device is authenticated based on the first authentication information that can be acquired by being present at a short distance from the printing device. Therefore, printing can be performed at least when the terminal device exists at a short distance from the printing device, and unauthorized printing can be suppressed.

  In the printing apparatus, authentication information receiving means for receiving the first authentication information acquired by the terminal device by being output to the output means, and the first authentication information received by the authentication information receiving means Further comprising: a determination unit that determines whether the authentication information receiving unit is valid at the timing when the first authentication information is received based on the expiration date of the first authentication information. The control unit causes the print execution unit to execute printing using the print data when the determination unit determines that the first authentication information is valid at the timing, and the determination unit If it is determined that the authentication information is not valid at the timing, the print execution unit may be prevented from executing printing using the print data.

  As a result, when it is determined that the first authentication information acquired by the terminal device is not valid at the timing when the authentication information receiving unit receives the first authentication information, printing is not executed, and the terminal device acquires the first authentication information. It is possible to prevent unauthorized printing from being performed later using the first authentication information.

  In the printing apparatus, the generation unit may update the first authentication information when the determination unit determines whether the first authentication information is valid at the timing.

  Thus, since the first authentication information is updated once used for determination, it is possible to prevent printing from being performed many times using the first authentication information acquired by the terminal device.

  In the above-described printing apparatus, the printing system further includes a management server, and the printing apparatus is a printing apparatus that communicates with the terminal device via the management server. A management server that receives print data and the first authentication information, wherein the print data receiving means receives the print data from the management server, and the authentication information receiving means receives the print data from the management server. One piece of authentication information may be received.

  Thereby, in the printing system including the management server, the occurrence of unauthorized printing can be suppressed.

  In the printing apparatus, when the determination unit determines that the first authentication information is valid at the timing, the printing apparatus further includes a print data request unit that requests the print data from the management server. The receiving means may receive the print data when the print data request means requests the print data from the management server.

  Accordingly, when the determination unit determines that the first authentication information is valid, the print data request unit requests the management server for print data, and the print data reception unit receives the print data from the management server. it can.

  In the above printing apparatus, the printing system further includes a management server, the printing apparatus is a printing apparatus that communicates with the terminal device via the management server, and the management server is synchronized with the generation unit. Then, the second authentication information in which the validity period is set is generated for each validity period, and is acquired by outputting the print data and the terminal device to the output unit from the terminal device. Whether the first authentication information is valid and the first authentication information is valid at the timing when the first authentication information is received. The print data receiving unit determines whether the first authentication information is valid at the timing by the management server. Receiving the serial print data, if said first authentication information by the management server is determined not to be valid in the timing may be from the management server to not receive the print data.

  Accordingly, when the first authentication information acquired by the terminal device is determined not to be valid at the timing when the management server receives the first authentication information, printing is not executed, and thus the first authentication information acquired by the terminal device It is possible to prevent unauthorized printing from being performed later using a single authentication information.

  In the printing apparatus, the output unit is a display unit that displays the first authentication information, and the terminal device captures the first authentication information displayed on the display unit by imaging the first authentication information. The first authentication information may be acquired, and the management server may receive an authentication image captured by the terminal device and read the first authentication information from the authentication image.

  Thereby, since the terminal device acquires the first authentication information displayed on the display unit by taking an image, it is possible to save time and effort for the terminal device to input the first authentication information.

  In the printing apparatus, the management server receives identification information for identifying the printing apparatus that prints the print data from the terminal apparatus, and stores the identification information in association with the print data. A management server, further comprising: a storage unit that stores the identification information; and an identification information transmission unit that transmits the identification information to the management server, wherein the print data reception unit corresponds to the identification information. It is good to receive print data.

  Accordingly, since the print data receiving unit receives the print data corresponding to the identification information received from the terminal device by the management server, the print data corresponding to the identification information is surely obtained even when there are a plurality of printing devices. Can be received.

  In addition, the program of the invention made to achieve such an object is used in a printing system including a printing device and a terminal device, and for a printing device provided with a print execution means for executing printing using print data. A generating means for generating the first authentication information with a validity period set for each validity period, the generation to provide the computer to the terminal device located at a short distance from the printing apparatus. Output means for outputting the first authentication information generated by the means, print data receiving means for receiving the print data according to a print instruction of the terminal device, and obtaining the terminal device by outputting to the output means Execution for causing the print execution means to execute printing using the print data when the terminal device is authenticated based on the first authentication information. Characterized in that to function as a control means.

  Accordingly, the terminal device is authenticated based on the first authentication information that can be acquired by being present at a short distance from the printing device. Therefore, printing can be performed at least when the terminal device exists at a short distance from the printing device, and unauthorized printing can be suppressed.

  The printing apparatus according to the present invention can suppress the occurrence of unauthorized printing by enabling printing at least when the terminal device is at a short distance from the printing apparatus.

It is explanatory drawing for demonstrating the outline | summary of 1st embodiment. 2 is a block diagram illustrating a configuration of a printer. FIG. 2 is a block diagram showing a configuration of a management server 20. FIG. It is a flowchart which shows a portable terminal process. 6 is a flowchart illustrating printer processing. It is a flowchart which shows a one-time password process. It is a flowchart which shows a polling printing process. It is a flowchart which shows a management server process. It is explanatory drawing for demonstrating the outline | summary of 2nd embodiment.

  Hereinafter, embodiments will be described with reference to the drawings.

(Outline of the first embodiment)
First, an outline of the first embodiment will be described with reference to FIG. FIG. 1 is an explanatory diagram for explaining the outline of the first embodiment.

  The printing system according to the present embodiment includes a printer 10, a management server 20, and a mobile terminal 30. The printer 10, the management server 20, and the mobile terminal 30 can communicate with each other via the Internet 40.

  The printer 10 generates a one-time password every time a certain period elapses. The one-time password has a valid period, and when the valid period elapses, the one-time password is updated to a new one-time password. The one-time password is displayed on the display unit 110 of the printer 10 together with the expiration date. The display unit 110 also displays the printer ID of the printer 10. Here, the description will be continued assuming that the printer ID of the printer 10 is “XYZ” and the currently valid one-time password is “Iroha”.

  The mobile terminal 30 captures the printer ID “XYZ” and the one-time password “Iroha” displayed on the display unit 110, and transmits mail data with the captured image and the print job attached thereto to the management server 20.

  When the management server 20 receives mail data from the portable terminal 30, it determines that a print job registration request has been received.

  Then, the management server 20 determines whether there is an image data attached file in the mail data and whether the printer ID and the one-time password can be read from the image data.

  Here, the portable terminal 30 transmits mail data to which the captured image obtained by photographing the printer ID and the one-time password and the print job are attached to the management server 20. Therefore, the management server 20 determines that the attached file of the image data exists in the mail data and that the printer ID and the one-time password can be read from the image data, and determines the printer ID from the image data (captured image). Read out (XYZ) and one-time password (Iroha).

  Then, it is determined whether or not the read printer ID “XYZ” is registered in a printer database (hereinafter referred to as printer DB) in the management server 20. When determining that the read printer ID “XYZ” is not registered in the printer DB, the management server 20 transmits an error notification to the mobile terminal 30.

  When determining that the read printer ID “XYZ” is registered in the printer DB, the management server 20 sets the print job attached to the mail data to the read printer ID “XYZ” and the one-time password “Iroha”. In association therewith, it is registered in a job database (hereinafter referred to as job DB) in the management server 20.

  The printer 10 inquires of the management server 20 whether a print job exists. This print job inquiry includes the printer ID “XYZ”. The printer 10 makes this inquiry to the management server 20 at regular intervals.

  Upon receiving a print job inquiry from the printer 10, the management server 20 determines whether a print job with the printer ID “XYZ” exists in the job DB, and returns a print job presence. At this time, the one-time password “Iroha” corresponding to the printer ID “XYZ” is also returned together with the notification that there is a job.

  When the printer 10 receives a notification that there is a print job from the management server 20, the printer 10 determines whether the one-time password “Iroha” received together with this notification is valid. Specifically, it is determined whether or not the received one-time password “Iroha” matches the currently valid one-time password (one-time password currently displayed on the display unit).

  If the printer 10 determines that the received one-time password “Iroha” is valid, it makes a print job acquisition request to the management server 20. This print job acquisition request includes the printer ID “XYZ”. Note that if the printer 10 determines that the received one-time password “Iroha” is not valid, it does not make a print job acquisition request.

  Upon receiving a print job acquisition request from the printer 10, the management server 20 returns a print job corresponding to the printer ID “XYZ”.

  When the printer 10 receives the print job, the printer 10 prints the print job.

  Thus, in order for the mobile terminal 30 to cause the printer 10 to execute printing, at least the mobile terminal 30 needs to acquire the one-time password displayed on the display unit 110 of the printer 10. That is, if the mobile terminal 30 is present in front of the printer 10, printing can be performed. Therefore, printing from a terminal that does not exist in front of the printer 10 can be prevented, and unauthorized printing can be suppressed.

  Even if the mobile terminal 30 acquires a one-time password, the mobile terminal 30 cannot execute printing unless the one-time password is valid. That is, the portable terminal 30 cannot execute printing using the one-time password at the timing when the one-time password expires. Therefore, it is possible to prevent the one-time password acquired by the mobile terminal 30 from being taken home and misused.

  Next, the first embodiment will be described in detail.

(Printer configuration)
First, the configuration of the printer 10 will be described with reference to FIG. FIG. 2 is a block diagram illustrating the configuration of the printer 10.

  The printer 10 includes an operation key 105, a display unit 110, a print execution unit 115, a network interface 120, a CPU 125, a ROM 130, and a RAM 135.

  The printer user can perform various processes such as a printing process by operating the operation keys 105.

  The display unit 110 is a display for displaying various information. The display unit 110 displays the printer ID “XYZ” and the currently valid one-time password together with the expiration date.

  The print execution unit 115 executes print processing according to the print instruction.

  The network interface 120 is an interface for the printer 10 to communicate with the management server 20 and the mobile terminal 30 via the Internet 40.

  The CPU 125 controls the entire configuration of the printer 10.

  The ROM 130 stores a printer processing program, a one-time password processing program, and a polling print processing program. The CPU 125 performs printer processing described later according to the printer processing program. Further, the CPU 125 performs a one-time password process described later according to the one-time password processing program. Further, the CPU 125 performs a polling print process described later according to the polling print process program.

  The RAM 135 is used as a storage area for storing data created when the CPU 125 performs various processes, and is also used as a storage area when the CPU 125 performs various processes. The RAM 135 stores a currently valid one-time password. When the date and time reaches the expiration date and the one-time password is updated, the RAM 135 stores the updated one-time password as the currently valid one-time password instead of the stored one-time password. The RAM 135 stores the printer ID “XYZ” of the printer 10.

(Management server configuration)
Next, the configuration of the management server 20 will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of the management server 20.

  The management server 20 includes a CPU 205, a ROM 210, a RAM 215, a reading unit 220, a network I / F 225, a printer DB 230, and a job DB 235.

  The CPU 205 performs overall control of all configurations of the management server 20.

  The ROM 210 stores a management server processing program. The CPU 205 performs later-described management server processing according to the management server processing program.

  The RAM 215 is used as a storage area for storing data created when the CPU 205 performs various processes, and is also used as a storage area when the CPU 205 performs various processes.

  The reading unit 220 reads a printer ID and a one-time password by performing OCR (Optical Character Recognition) on the captured image received from the mobile terminal 30.

  The network interface 225 is an interface for the management server 20 to communicate with the printer 10 and the portable terminal 30 via the Internet 40.

  A printer ID is registered in the printer DB 230. Upon receiving the printer ID registration request from the printer 10, the management server 20 registers the printer ID “XYZ” in the printer DB 230. When the printer ID is registered in the printer DB 230, the printer 10 can execute printing in the printing system according to the present embodiment.

  In the job DB 235, the print job received from the portable terminal 30 and the printer ID and the one-time password read by the reading unit 220 from the captured image received together with the print job are registered in association with each other.

(Mobile device processing)
Next, the portable terminal process which the portable terminal 30 performs is demonstrated based on FIG. FIG. 4 is a flowchart showing the portable terminal process.

  The portable terminal process is started by a CPU (not shown) included in the portable terminal 30 when the portable terminal 30 is turned on.

  First, the mobile terminal 30 determines whether there is an input (S310), and repeats the process of S310 until it is determined that there is an input. Specifically, the mobile terminal 30 determines whether an instruction output by pressing a button (not shown) of the mobile terminal 30 is input.

  When it is determined that there is an input (S310: Yes), the portable terminal 30 determines whether the input instruction is a photography instruction (S315).

  If it is determined that the instruction is a photography instruction, the portable terminal 30 performs a photography process (S320), and returns to S310. The captured image is stored in a memory (not shown) included in the mobile terminal 30. When the user of the mobile terminal 30 causes the printer 10 to execute printing using the printing system according to the present embodiment, the user captures the printer ID and the one-time password displayed on the display unit 110.

  On the other hand, if it is determined that the instruction is not a photography instruction, the mobile terminal 30 determines whether the input instruction is a mail creation instruction (S325).

  If it is determined that it is not a mail creation instruction, the portable terminal 30 performs other processing according to the instruction (S330), and returns to S310. On the other hand, if it is determined that it is a mail creation instruction, the portable terminal 30 proceeds to S333.

  After shifting to S333, the mobile terminal 30 performs a new mail creation process (S333).

  Then, the portable terminal 30 proceeds to S335, determines whether there is an input (S335), and repeats the process of S335 until it is determined that there is an input. The mobile terminal 30 determines whether an instruction output by pressing a button (not shown) of the mobile terminal 30 is input.

  When the portable terminal 30 determines that there is an input (S335: Yes), it determines whether the input instruction is an attachment instruction (S340).

  If it is determined that the instruction is an attachment instruction (S340: Yes), the mobile terminal 30 performs an attachment process (S345). Specifically, when the input instruction is a document attachment instruction, the mobile terminal 30 attaches a print job to the mail created in S333. If the input instruction is an image attachment instruction, the image taken in S320 is attached to the mail created in S333. Then, the process returns to S335.

  On the other hand, if it is determined that the instruction is not an attachment instruction (S340: No), the portable terminal 30 determines whether the input instruction is a mail transmission instruction (S350).

  If it is determined that the instruction is a mail transmission instruction, the portable terminal 30 performs a mail transmission process (S355). When a document attachment instruction and an image attachment instruction are input (S340: Yes), a mail with the print job and the image taken in S320 attached is transmitted to the destination. Then, the process returns to S335.

  On the other hand, if it is determined that the instruction is not a mail transmission instruction (S340: No), the portable terminal 30 determines whether the input instruction is an end instruction (S360).

  If it is determined that it is an end instruction (S360: Yes), the portable terminal 30 returns to S310.

  On the other hand, if it is determined that the instruction is not an end instruction (S360: No), the portable terminal 30 performs other processing according to the input instruction (S365), and returns to S335.

  The portable terminal 30 repeats the portable terminal process until the power is turned off.

(Printer processing)
Next, printer processing executed by the printer 10 will be described with reference to FIG. FIG. 5 is a flowchart showing the printer process.

  The printer process starts when the printer 10 is turned on.

  First, the printer 10 transmits a registration request for the printer ID “XYZ” to the management server 20 (S410).

  Then, the printer 10 displays the printer ID “XYZ” on the display unit 110 (S415).

  Then, the printer 10 starts up a one-time password processing program (S420). The one-time password process is a process for generating a one-time password, which will be described in detail later.

  Then, the printer 10 starts up a polling print processing program (S425). The polling printing process is a process of polling the management server at regular intervals and executing printing in a predetermined case, details of which will be described later.

(One-time password processing)
Next, the one-time password process will be described with reference to FIG. FIG. 6 is a flowchart showing the one-time password process.

  The one-time password processing starts when the one-time password processing program is started in S420 of FIG.

  First, the printer 10 generates a one-time password (S510).

  Then, the generated one-time password is displayed on the display unit 110 together with the expiration date (S515). For example, when the validity period of the one-time password is 5 minutes, the validity period is calculated 5 minutes after the current time and displayed on the display unit.

  Then, the printer 10 counts down the validity period until the validity period (S520).

  Then, when the down-count ends and the time reaches the expiration date, the process returns to S510, and the one-time password is updated (S510).

  The updated one-time password is displayed together with the expiration date (S515), and is counted down until the expiration date (S520).

  In the one-time password process, the processes of S510 to S520 are repeated until the printer 10 is turned off.

(Polling print processing)
Next, the polling printing process will be described with reference to FIG. FIG. 7 is a flowchart showing the polling printing process.

  The polling printing process starts when the polling printing process program is started in S425 of FIG.

  First, the printer 10 waits for a predetermined time (S610). The printer 10 issues a print job inquiry to the management server 20 every time this predetermined time elapses (S615). Therefore, it is preferable to set this fixed time so that a print job inquiry can be made a plurality of times within the valid period of the one-time password. For example, if the one-time password is valid for 5 minutes, it is preferable to wait for about 30 seconds to 1 minute (S610). Note that the time required for the polling printing process (S610 to S670) is extremely short and is not considered here, but this fixed time may be set in consideration of this.

  Then, the printer 10 inquires of the management server 20 whether the print job exists using the printer ID “XYZ” (S615).

  Then, the printer 10 determines whether there is a reply from the management server 20 (S620).

  When it is determined that there is a reply (S620: Yes), the process proceeds to S625. On the other hand, when it is determined that there is no reply (S620: No), the process of S620 is repeated until it is determined that there is a reply.

  After shifting to S625, the printer 10 determines whether there is a print job (S625). That is, it is determined whether the reply from the management server 20 is a notification that there is a print job (S625).

  If it is determined that there is no print job (S625: No), the process returns to S610. On the other hand, if it is determined that there is a print job (S625: Yes), the printer 10 determines whether the one-time password received from the management server 20 together with the notification that there is a print job is valid (S630). Specifically, the printer 10 determines whether the currently valid one-time password stored in the RAM 135 matches the one-time password received from the management server 20 (S630).

  If it is determined that the one-time password is valid (S630: Yes), the printer 10 updates the one-time password (S635).

  Then, the printer 10 updates the one-time password displayed on the display unit 110 to a new one-time password (S640). At this time, the expiration date is not changed, and the expiration date displayed in S515 of FIG. 6 is displayed as it is.

  Then, the printer 10 transmits a print job acquisition request to the management server 20 using the printer ID “XYZ” (S645).

  The printer 10 determines whether there is a reply from the management server 20 (S650), and repeats the process of S650 until it is determined that there is a reply.

  If the printer 10 determines that there is a reply from the management server 20 (S650: Yes), the printer 10 receives a print job from the management server 20 and executes a printing process (S655). Then, the process returns to S610.

  On the other hand, if it is determined in S630 that the one-time password is not valid (S630: No), the printer 10 transmits a one-time password mismatch notification to the management server 20 (S660). Note that the printer ID “XYZ” is included in the one-time password mismatch notification.

  Then, the printer 10 updates the one-time password (S665).

  Then, the printer 10 updates the one-time password displayed on the display unit 110 to a new one-time password (S670). At this time, the expiration date is not changed, and the expiration date displayed in S515 of FIG. 6 is displayed as it is. Then, the process returns to S610.

  As described above, when it is determined whether the one-time password is valid (S630), the one-time password is updated (S635, S665). Therefore, since the portable terminal 30 cannot perform printing many times using the acquired one-time password, it is possible to further suppress the occurrence of unauthorized printing.

  If it is determined that the one-time password is valid (S630: Yes), the printer 10 transmits a print job acquisition request to the management server 20 (S645). Accordingly, when the printer 10 determines that the one-time password is not valid, the printer 10 does not receive a print job from the management server 20, so that unnecessary processing can be omitted and processing can proceed efficiently.

  In the polling printing process, the processes of S610 to S670 are repeated until the printer 10 is turned off.

(Management server processing)
Next, the management server process will be described with reference to FIG. FIG. 8 is a flowchart showing the management server process.

  The management server 20 starts management server processing when the power is turned on.

  First, the management server 20 determines whether there is a reception command (S710), and repeats the processing of S710 until it is determined that there is a reception command.

  If it is determined that there is a reception command (S710: Yes), the management server 20 determines whether the reception command is a printer ID registration request (S715).

  If it is determined that the received command is a printer ID registration request (S715: Yes), the management server 20 registers the printer ID included in the registration request in the printer DB 230 (S720). Then, the process returns to S710.

  When the printer 10 is turned on, the printer ID “XYZ” is registered in the printer DB 230 in response to the registration request in S410 in FIG.

  On the other hand, if it is determined that the received command is not a printer ID registration request (S715: No), the management server 20 determines whether the received command is a print job inquiry (S725).

  When it is determined that the received command is a print job inquiry (S725: Yes), the management server 20 determines whether a print job corresponding to the printer ID included in the print job inquiry exists in the job DB 235 ( S730). If it is determined that a print job exists (S730: Yes), the management server 20 transmits a print job presence notification to the printer 10 together with the one-time password stored in association with the print job (S735). Then, the process returns to S710. On the other hand, if it is determined that there is no print job (S730: No), the management server 20 transmits a notification that there is no print job to the printer 10 (S740). Then, the process returns to S710.

  On the other hand, if it is determined in S725 that the received command is not a print job inquiry (S725: No), the management server 20 determines whether the received command is a print job acquisition request (S745).

  If it is determined that the received command is a print job acquisition request (S745: Yes), the management server 20 returns a print job corresponding to the printer ID included in the print job acquisition request to the printer that has transmitted the print job acquisition request. Then, the print job transmitted from the job DB 235 is deleted (S750). Then, the process returns to S710.

  On the other hand, when determining that the received command is not a print job acquisition request (S745: No), the management server 20 determines whether the received command is a print job registration request (S755). That is, it is determined whether mail data has been received (S755).

  If it is determined that the received command is a print job registration request (S755: Yes), the management server 20 determines whether there is an attached file of image data in the received mail data (S757).

  If it is determined that there is no attached file of image data (S757: No), the management server 20 performs error processing (S765). The error process of S765 is a process of transmitting an error notification that the print job cannot be registered to the terminal device (mobile terminal 30) that has transmitted the print job registration request (S765). Then, the process returns to S710.

  On the other hand, if it is determined that there is an attached file of image data (S757: Yes), the management server 20 determines whether the attached image data can be OCR to read the printer ID and the one-time password (S758). . That is, the management server 20 attaches image data to which a character string that matches the regularity of the printer ID stored in the management server 20 and a character string that matches the regularity of the one-time password stored in the management server 20 are attached. To determine if it exists.

  When there are a plurality of attached files of image data, the management server 20 determines whether all the image data can be OCRed and the printer ID and one-time password can be read out. Then, image data from which the printer ID and one-time password can be read is recognized as a captured image, and other attached files are recognized as a print job. If there is one attached file of image data, it is determined whether the image ID can be OCRed and the printer ID and one-time password can be read out. If the printer ID and the one-time password can be read, the image data is recognized as a captured image, and the other attached file is recognized as a print job.

  If it is determined that the printer ID and the one-time password cannot be read (S758: No), the management server 20 performs error processing (S765). Then, the process returns to S710.

  On the other hand, when determining that the printer ID and the one-time password can be read (S758: Yes), the management server 20 performs OCR on the attached image data and reads the printer ID and the one-time password (S759).

  Then, the management server 20 determines whether the read printer ID exists in the printer DB 230 (S760).

  When determining that the printer ID exists in the printer DB 230 (S760: Yes), the management server 20 associates the read one-time password and printer ID with the print job attached to the mail data and registers them in the job DB 230. (S770). Then, the process returns to S710.

  On the other hand, when it is determined that the printer ID does not exist in the printer DB 230 (S760: No), the management server 20 performs error processing (S765). Then, the process returns to S710.

  On the other hand, if it is determined in S755 that the received command is not a print job registration request (S755: No), the management server 20 determines whether the received command is a one-time password mismatch notification (S775).

  If it is determined that the received command is a one-time password mismatch notification (S775: Yes), the management server 20 performs error processing (S777). The error processing in S777 is processing for transmitting an error notification that the one-time password is not valid to the terminal device (mobile terminal 30) that has transmitted the print job registration request.

  Then, the print job corresponding to the printer ID included in the one-time password mismatch notification is deleted from the job DB 235 (S780). Then, the process returns to S710.

  On the other hand, when it is determined that the received command is not a one-time password mismatch notification (S775: No), the management server 20 performs other processing according to the received command (S785). Then, the process returns to S710.

  The management server process repeats the processes of S710 to S785 until the power of the management server 20 is turned off.

(Outline of the second embodiment)
Next, an outline of the second embodiment will be described with reference to FIG. FIG. 9 is an explanatory diagram for explaining the outline of the second embodiment.

  In the present embodiment, the management server 20 generates a one-time password in synchronization with the printer 10, and the management server 20 further determines whether the one-time password acquired by the mobile terminal 30 is valid. Is different. Hereinafter, points different from the first embodiment will be mainly described. It is assumed that the printer ID of the printer 10 is “XYZ” and the currently valid one-time password is “Iroha”.

  The mobile terminal 30 captures the printer ID “XYZ” and the one-time password “Iroha” displayed on the display unit 110, and transmits mail data with the captured image and the print job attached thereto to the management server 20.

  When the management server 20 receives the mail data from the portable terminal 30, the management server 20 reads the printer ID “XYZ” and the one-time password “Iroha” from the captured image attached to the mail data.

  Then, the management server 20 determines whether the read printer ID “XYZ” is registered in the printer DB in the management server 20.

  When determining that the printer ID “XYZ” is not registered in the printer DB, the management server 20 transmits an error notification to the mobile terminal 30.

  When determining that the printer ID “XYZ” is registered in the printer DB, the management server 20 determines whether the read one-time password “Iroha” is valid. Specifically, when the printer ID is the ID of the printer 10, the read one-time password “Iroha” and the current one-time password generated by the management server 20 based on the current time using the same algorithm as the printer 10. Is matched.

  The generation of the one-time password of the management server 20 will be described in detail. The one-time password is a random character string derived based on the current time. The management server 20 and the printer 10 have a clock with the same time. The management server 20 and the printer 10 are set such that the update time of the one-time password is, for example, every 5 minutes from 0:00. The management server 20 and the printer 10 generate a one-time password based on the current time when the power is turned on, and update the one-time password at a predetermined update time.

  If the management server 20 determines that the one-time password “Iroha” is valid, the management server 20 associates the print job attached to the mail data with the read printer ID “XYZ” and the one-time password “Iroha”, and manages them. Register in the job DB in the server 20. If the management server 20 determines that the one-time password “Iroha” is not valid, the management server 20 transmits an error notification to the portable terminal 30 and does not register the print job in the job DB.

  The printer 10 transmits a print job acquisition request including the printer ID “XYZ” to the management server 20. The printer 10 makes a print job acquisition request to the management server 20 at regular intervals.

  When receiving the print job acquisition request from the printer 10, the management server 20 determines whether there is a print job corresponding to the printer ID “XYZ”. If a print job exists, the print job is returned to the printer 10.

  When the printer 10 receives the print job, the printer 10 prints the print job.

  Thus, in the second embodiment, the management server 20 generates a one-time password in synchronization with the printer 10, and the management server 20 determines whether the one-time password acquired by the mobile terminal 30 is valid. Therefore, compared with the first embodiment, since the process shifts to the one-time password determination process earlier, the mobile terminal can be more reliably authenticated. For example, if the mobile terminal 30 acquires a one-time password immediately before the expiration date, the one-time password may be updated when the one-time password is determined. In this case, the mobile terminal 30 cannot execute printing. Even in such a case, according to the second embodiment, since the process proceeds to the one-time password determination process earlier, it is possible to avoid a situation in which the mobile terminal 30 that should be authenticated is not authenticated.

  In the embodiment, the printer 10 is a “printing device”, the mobile terminal 30 is a “terminal device”, S510 to S520, S635, and S665 are “generating means”, the display unit 110 is “output means”, and S655. Are “print data receiving means”, the print execution unit 115 and S655 are “print execution means”, S630 is “execution control means”, S625 is “authentication information receiving means”, and S630 is “determination means”. S645 corresponds to “print data request means”, the RAM 135 corresponds to “storage means”, and S615 corresponds to “identification information transmission means”.

(Modification)
In addition, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various aspect can be taken in the range which does not deviate from the summary of this invention.

  For example, although the embodiment has been described with the printer 10 as an example, the present invention is not limited to this, and a multifunction machine may be used. The mobile terminal 30 may be a personal computer.

  Further, the printer 10 may directly communicate with the portable terminal 30 without using the management server 20. That is, a printing system that does not include the management server 20 may be used. In this case, the mobile terminal 30 captures the printer ID and the one-time password displayed on the printer 10, and sends the captured image to the printer 10 together with the print job. Upon receiving the mail data, the printer 10 determines whether there is image data. If there is image data, the printer 10 determines whether the printer ID and the one-time password can be read out. This process is the same as S757 and S758 of the management server 20. When determining that the printer ID and the one-time password can be read, the printer 10 reads the printer ID and the one-time password, and determines whether the printer ID stored in the RAM 135 matches the read printer ID. If it is determined that the printer ID stored in the RAM 135 matches the read printer ID, the printer 10 determines whether the currently valid one-time password stored in the RAM 135 matches the read one-time password. Judgment is made, and printing data is printed if they match. On the other hand, if it is determined that the currently valid one-time password stored in the RAM 135 does not match the read one-time password, the printer 10 does not print the print job.

  A printing system including a plurality of printers may be used. In this case, in the second embodiment, the management server 20 may generate a one-time password when receiving a print job acquisition request including a printer ID from the printer. More specifically, all printers included in the printing system store a printer ID and a token unique to the printer ID in association with each other. The management server 20 stores the printer ID and the corresponding token in association with each other for all printers. The one-time password is generated based on the token and the current time. The management server 20 receives a job acquisition request including a printer ID from the printer. When receiving the job acquisition request, the management server 20 reads a token corresponding to the printer ID included in the job acquisition request, and generates a one-time password based on the read token and the current time. Then, it is determined whether the one-time password read from the mail data received from the portable terminal 30 matches the generated password. If they match, the print job is returned to the printer.

  Further, although the management server 20 transmits a print job notification and a one-time password in response to a print job inquiry from the printer 10, the present invention is not limited to this. For example, the management server 20 may transmit a print job and a one-time password in response to a print job inquiry from the printer 10. In this case, the printer 10 determines whether or not the received one-time password is valid, and executes printing when it is determined that it is valid. On the other hand, if it is determined that it is not valid, printing is not executed.

  In the first embodiment, the management server 20 may determine whether the one-time password is valid. That is, the printer 10 transmits the printer ID and the currently valid one-time password to the management server 20, and the management server 20 receives the one-time password received from the mobile terminal 30 and the one-time password received from the printer 10. You may determine whether they match.

  Further, although it has been described that the portable terminal 30 acquires the printer ID and the one-time password by photographing the display on the display unit 110 of the printer 10, the portable terminal 30 may be manually input.

  Further, the display unit 110 has been described as a means for the printer 10 to provide the printer ID and the one-time password to the portable terminal 30, but the present invention is not limited to this. Any means for notifying the terminal located at a short distance from the printer 10 may be used. For example, Bluetooth, infrared (IrDA), 24 GHz short-range wireless, or the like may be used.

  In addition, the printer 10 displays a QR code including the printer ID and one-time time password information on the display unit 110, and the mobile terminal 30 captures the QR code displayed on the display unit 110 and stores it in the management server. You may send it. In this case, the management server 20 includes a QR code reader, and reads the printer ID and the one-time password with the QR code reader.

  Further, the case where the mobile terminal 30 transmits a print job to the management server 20 has been described as an example. However, the present invention is not limited to this, and the mobile terminal 30 describes the position (URL) of the print job in the mail body, Alternatively, mail data attached with a photographed image obtained by photographing a one-time password may be transmitted. In this case, the management server 20 determines whether there is a character string that comes to the URL syntax in the mail body. When the read printer ID is registered in the printer DB 230, the management server 20 acquires a print job according to the URL described in the mail text, and registers it in the job DB 235.

  Further, although an example in which the mobile terminal 30 transmits mail data to the management server 20 has been described, the present invention is not limited thereto, and any protocol that can transmit a print job and a captured image to the management server 20 may be used.

DESCRIPTION OF SYMBOLS 10 Printer 20 Management server 30 Portable terminal 115 Print execution part 125 CPU

Claims (9)

A printing device used in a printing system including a printing device and a terminal device,
Generating means for generating the first authentication information in which the validity period is set for each validity period;
An output means for outputting the first authentication information generated by the generating means for providing to the terminal device existing at a short distance from the printing apparatus ;
Authentication information receiving means for receiving the first authentication information acquired by the terminal device by being output to the output means;
Whether the first authentication information received by the authentication information receiving means is valid at the timing when the authentication information receiving means receives the first authentication information is indicated in the expiration date of the first authentication information. A judging means for judging based on;
Print data receiving means for receiving print data according to a print instruction of the terminal device;
Print execution means for executing printing using the print data;
When it is determined that the first authentication information acquired by the terminal device being output to the output unit is valid at the timing, the print execution unit is caused to execute printing using the print data. An execution control unit that does not cause the print execution unit to execute printing using the print data when it is determined that the first authentication information is not valid at the timing ;
The generating unit, when determining whether or not the first authentication information by said determining means is valid to said timing is determined, the printing apparatus characterized users update the first authentication information . The printing system further includes a management server, and the printing device is a printing device that communicates with the terminal device via the management server, and the management server receives the print data and the first data from the terminal device. A management server that receives the authentication information of
The print data receiving means receives the print data from the management server;
The printing apparatus according to claim 1 , wherein the authentication information receiving unit receives the first authentication information from the management server. When the determination unit determines that the first authentication information is valid at the timing, the determination unit further includes a print data request unit that requests the print data from the management server,
The printing apparatus according to claim 2 , wherein the print data receiving unit receives the print data when the print data request unit requests the print data from the management server. The printing system further includes a management server, and the printing device is a printing device that communicates with the terminal device via the management server, and the management server synchronizes with the generation unit and the validity period. there generates a second authentication information set for each of the expiration date, and, from said terminal apparatus, and the print data, a management server before Symbol you receive a first authentication information, and
The print data receiving unit, when the first authentication information Ru is determined to be valid on the timing to receive the print data from the management server, the first authentication information is not valid in the timing If that will be determined that, the printing apparatus according to any one of claims 1 to 3 characterized in that it does not receive the print data from the management server.   A printing device used in a printing system including a printing device and a terminal device,
  Generating means for generating the first authentication information in which the validity period is set for each validity period;
  An output means for outputting the first authentication information generated by the generating means for providing to the terminal device existing at a short distance from the printing apparatus;
  Print data receiving means for receiving print data according to a print instruction of the terminal device;
  Print execution means for executing printing using the print data;
  When the terminal device is authenticated based on the first authentication information acquired by the terminal device being output to the output unit, the print execution unit is caused to execute printing using the print data. Execution control means,
  The printing system further includes a management server, and the printing device is a printing device that communicates with the terminal device via the management server, and the management server synchronizes with the generation unit and the validity period. Is generated for each expiration date, and the print data and the first authentication acquired by outputting the terminal device to the output unit from the terminal device. And determining whether the first authentication information is valid at the timing when the first authentication information is received based on the expiration date of the second authentication information. A server,
  The print data receiving means receives the print data from the management server when the management server determines that the first authentication information is valid at the timing, and the management server receives the first data When the authentication information is determined not to be valid at the timing, the printing data is not received from the management server. The output means is a display means for displaying the first authentication information,
The terminal device acquires the first authentication information by imaging the first authentication information displayed on the display means,
The printing apparatus according to claim 2, wherein the management server receives an authentication image captured by the terminal device and reads the first authentication information from the authentication image. The management server is a management server that receives identification information for identifying the printing apparatus that prints the print data from the terminal device, and stores the identification information in association with the print data.
Storage means for storing the identification information;
An identification information transmitting means for transmitting the identification information to the management server,
The printing apparatus according to claim 2, wherein the print data receiving unit receives the print data corresponding to the identification information. A program for a printing apparatus that is used in a printing system including a printing apparatus and a terminal apparatus, and includes a print execution unit that executes printing using print data,
Computer
Generating means for generating the first authentication information in which the validity period is set for each validity period;
An output means for outputting the first authentication information generated by the generating means for providing to the terminal device existing at a short distance from the printing apparatus;
Authentication information receiving means for receiving the first authentication information acquired by the terminal device by being output to the output means;
Whether the first authentication information received by the authentication information receiving means is valid at the timing when the authentication information receiving means receives the first authentication information is indicated in the expiration date of the first authentication information. Judging means for judging based on
Print data receiving means for receiving the print data according to a print instruction of the terminal device;
When it is determined that the first authentication information acquired by the terminal device being output to the output unit is valid at the timing, the print execution unit is caused to execute printing using the print data. , When it is determined that the first authentication information is not valid at the timing, the print execution unit functions as an execution control unit that does not execute printing using the print data ,
The generating unit, when determining whether or not the at the determination unit first authentication information is valid in the timing is determined, the program characterized users update the first authentication information. A program for a printing apparatus that is used in a printing system including a printing apparatus and a terminal apparatus, and includes a print execution unit that executes printing using print data,
Computer
Generating means for generating the first authentication information in which the validity period is set for each validity period;
An output means for outputting the first authentication information generated by the generating means to provide to the terminal device existing at a short distance from the printing apparatus;
Print data receiving means for receiving print data according to a print instruction of the terminal device;
Print execution means for executing printing using the print data;
When the terminal device is authenticated based on the first authentication information acquired by the terminal device being output to the output unit, the print execution unit is caused to execute printing using the print data. Function as an execution control means,
The printing system further includes a management server, and the printing device is a printing device that communicates with the terminal device via the management server, and the management server synchronizes with the generation unit and the validity period. Is generated for each expiration date, and the print data and the first authentication acquired by outputting the terminal device to the output unit from the terminal device. And determining whether the first authentication information is valid at the timing when the first authentication information is received based on the expiration date of the second authentication information. A server,
The print data receiving means receives the print data from the management server when the management server determines that the first authentication information is valid at the timing, and the management server receives the first data If authentication information is determined not to be valid in the timing, characterized in that it does not receive the print data from the management server program.