JP6535628B2 - Printing system - Google Patents

Description

  The present invention relates to an information processing apparatus for writing print data to a portable data storage means such as a USB memory, and a printing apparatus which is connected to the data storage means and reads out print data stored in the data storage means for printing. And, more particularly, to a printing system capable of preventing taking out of confidential data and important data other than print data by data storage means.

  In schools, etc., the printing device in the printing room may be used not only by the teacher but also by the students. Therefore, the teacher's personal computer in the staff room or the staff indoor LAN and the printing device in the printing room Often not connected by a network.

  When printing with a printing apparatus in such a printing room, for example, the print data is stored in a portable data storage means such as a USB memory, moved to the printing room, and inserted into the printing apparatus. Direct printing is performed in which the apparatus reads out print data from the data storage means and prints directly.

  However, in recent years, information leakage due to the loss of portable data storage means such as a USB memory has become a social problem, and there is a demand for a printing system that can prevent the carrying out of confidential data by portable data storage means.

  Therefore, for example, when carrying out the recording of confidential data in a portable data storage means, a person who carries out the confidential data, a network-like position for carrying out the confidential data, a deadline for taking out confidential data, and an encryption The recorded confidential data is recorded in the portable data storage means, and the place where the confidential data recorded in the memory can be decrypted (network location such as host name or IP), the person, the delivery expiration date is limited An invention relating to a confidential leak system has been proposed in which the leakage of confidential data is prevented (see, for example, Patent Document 1).

  In this security leak system, even if the portable data storage means storing the confidential data is lost, the decryption is made permanent by expiring the expiration date of the confidential data registered in the decryption server. To prevent the leakage of confidential data.

JP, 2009-169821, A

  However, since the confidential leak system described in the above-mentioned Patent Document 1 is a method for storing the carry-out date of confidential data and encrypted confidential data in portable data storage means, data storage of confidential data, important data, etc. It is not possible to prevent the act itself which is stored in the means and brought out to the outside.

  Therefore, even if the data storage means storing confidential data, important data, etc. is lost by any chance, the password may be stored in the data storage means even if the data is encrypted or the carry-out expiration date is limited. There is a possibility that the data may be decoded and leaked according to the round-robin method of

  The present invention has been made in view of such problems, and is generated along with bringing out print data by prohibiting storing data other than print data in a portable data storage means such as a USB memory. It is an object of the present invention to provide a printing system capable of preventing the leakage of data such as confidential data accompanying the carrying out of data storage means, without the possibility of bringing out other data which has been taken to the workplace or outside the school.

In order to achieve the above object, according to a first feature of a printing system according to the present invention, an information processing apparatus for writing print data to portable data storage means, and the data storage means connected to the data storage means What is claimed is: 1. A printing system comprising: a printing apparatus that reads out stored print data and performs printing;
The information processing apparatus includes print data writing means for writing and storing print data in the data storage means, and dummy data for prohibiting additional writing to the data storage means after the print data is written. And dummy data writing means for writing and storing data in storage means.
In the printing apparatus, when the data storage unit is connected and a print instruction of the print data stored in the data storage unit is received, the print data and the dummy data are stored in the data storage unit. The printing control means is provided to print the print data only in the case.

  Further, according to a second feature of the printing system according to the present invention, the data storage means is connected to a connection portion provided in the printing apparatus in a state where at least a part of the data storage means is covered by a housing having a predetermined size. It is to

  In a third feature of the printing system according to the present invention, the case is provided with an IC chip in which identification information for identifying the case is registered in advance, and the printing control means When the storage means is connected, the identification information is read out from the IC chip of the housing in which the data storage means is mounted, and printing of print data stored in the data storage means is performed based on the read out identification information. To determine whether to

  According to a first aspect of the printing system of the present invention, in the case of writing print data in a portable data storage means such as a USB memory, the information processing apparatus stores the data after the print data is written. Dummy data for prohibiting additional writing to the data is written to the data storage means.

  Therefore, when printing is performed by writing print data to the data storage unit, the user can not store data other than the print data by the dummy data in the data storage unit to which the print data has been written. It is possible to prevent the taking out and leakage of other data.

  Further, in the printing apparatus, when the data storage unit is connected and there is a print instruction of the print data stored in the data storage unit, the print data and the dummy data for prohibiting additional writing exist in the data storage unit. Print the print data only if.

  Therefore, printing is not performed not only when print data is stored in the data storage unit, but also when dummy data is not written even if print data is stored, so by appropriately operating this printing system. It is possible to prevent data other than print data from leaking to the outside.

  Further, according to a second aspect of the printing system according to the present invention, the data storage means is connected to the connection portion provided in the printing apparatus in a state where at least a part of the data storage means is covered by a housing having a predetermined size. Therefore, it is possible to prevent the data storage means from being carried away or taken out by mistake.

  Further, according to the third aspect of the printing system according to the present invention, the case is provided with an IC chip in which identification information for identifying the case is registered in advance, and the printing control means of the printing apparatus If the data storage means is connected, read out the identification information from the IC chip of the housing on which the data storage means is mounted, and print the print data stored in the data storage means based on the read out identification information It is determined whether or not.

  Therefore, when the housing is removed from the data storage means, the print data can not be printed, so that the use of the data storage means removed from the housing can be prevented as much as possible.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the structure of the whole printing system of Embodiment 1 which concerns on this invention. 5 is a flowchart showing a processing procedure on the information processing apparatus side configuring the printing system of the first embodiment according to the present invention. It is a flowchart which shows the process sequence by the side of the printing apparatus which comprises the printing system of Embodiment 1 which concerns on this invention. It is a conceptual diagram which shows the structure of the printing data only memory (data storage means) which comprises the printing system of Embodiment 2 which concerns on this invention. It is a conceptual diagram which shows the structure of the memory for exclusive use of printing data (data storage means) which comprises the printing system of Embodiment 3 which concerns on this invention. It is a flowchart which shows the process sequence by the side of the printing apparatus which comprises the printing system of Embodiment 3 which concerns on this invention.

  Hereinafter, the printing systems of Embodiments 1 to 3 according to the present invention will be described in detail with reference to the drawings. In the embodiment described below, the printing system according to the present invention is described by applying to a school, but this is merely an example of the present invention, and the printing system according to the present invention is not limited to the following. .

Embodiment 1
FIG. 1 is a system configuration diagram showing the configuration of a printing system according to a first embodiment of the present invention.

  As shown in FIG. 1, the printing system 1 according to the embodiment of the present invention is, for example, provided in a staff room A of a school, and a plurality of information processing apparatuses 10 connected by a staff indoor LAN 30; The printing apparatus 20 is separated from the staff indoor LAN 30 and not connected.

  Therefore, when printing print data processed by each information processing apparatus 10 with the printing apparatus 20, the print data is stored in the print data dedicated memory 40 which is portable data storage means such as a USB memory in the staff room A Then, it is carried to the printing room B, and the printing data dedicated memory 40 is inserted into the printing apparatus 20 in the printing room B and printing is performed.

(Configuration of information processing apparatus 10)
The information processing apparatus 10 is a so-called general-purpose personal computer, and is an external interface (I) to which the CPU 11, the memory 12, the program storage unit 13, the display unit 14, the data input unit 15, and the print data memory 40 are connected. / F) unit 16 is provided.

  The CPU 11 controls the entire operation of the information processing apparatus 10. In the first embodiment, the print data writing unit 11a and the dummy data according to the present invention are executed by executing the printer driver program 13b or the like stored in the program storage unit 13. It also functions as the writing means 11b.

  The memory 12 temporarily stores data input by the user through the data input unit 15, data processed by the CPU 11, and the like.

  The program storage unit 13 stores an operation system (OS) program, various application programs 13 a such as a document creation application program, and a printer driver program 13 b for causing the printing apparatus 20 to execute printing.

  The display unit 14 is a display unit such as a liquid crystal display, and displays an operation system (OS) program, various application programs 13a, various data when the printer driver program 13b is executed, an operation state, and the like.

  The data input unit 15 is a keyboard, a mouse or the like operated by the user, and inputs various data as a basis of print data.

  The external interface (I / F) unit 16 is connected with various external devices such as a print data dedicated memory 40 which is data storage means of the present invention.

(Configuration of printing device 20)
The printing apparatus 20 is a stand-alone printing apparatus separated from the staff indoor LAN 30 as described above, and the CPU 21, the memory 22, the program storage unit 23, the operation panel unit 24, the printing unit 25, and the external interface (I / F) unit 26 and the like are provided.

  The CPU 21 controls the entire operation of the printing apparatus 20, and particularly functions as a printing control unit 21a.

  The memory 22 temporarily stores print data read from the print data dedicated memory 40 and various data such as the print format and the number of print sheets input by the user using the operation panel unit 24.

  The program storage unit 23 stores a program for the CPU 21 to control the entire operation of the printing apparatus 20 and to function as the print control unit 21 a.

  The operation panel unit 24 includes a key input unit 24a having a power key, a numeric keypad for setting the number of printed sheets, various setting keys for setting a printing format, etc., and a display for displaying an input or printing status by the key input unit 24a. And 24b.

  The printing unit 25 discharges ink from an ink head of each color such as, for example, an inkjet method, that is, black, cyan, magenta, yellow, etc. to form an image. Alternatively, it may be a stencil printing apparatus for printing by a stencil master. In the first embodiment, since the printing apparatus 20 is not connected to the staff indoor LAN 30, the CPU 21 reads the print data stored in the print data dedicated memory 40 connected to the external interface (I / F) unit 26 and will be described later. Printing is performed based on the control of the CPU 21.

  The external interface (I / F) unit 26 is connected with various external devices such as the print data dedicated memory 40.

  The staff indoor LAN 30 is a network connecting a plurality of information processing apparatuses 10 in the staff room A, and is not connected to the printing apparatus 20 in the printing room B.

  The print data dedicated memory 40 functions as a print data storage unit, and is a memory such as a USB memory or a memory card specialized for storing print data to be printed by the printing apparatus 20, and is portable and can read and write data. If it is memory, it does not matter in particular.

(Operation of Printing System of Embodiment 1 According to the Present Invention)
Next, the operation of the printing system 1 according to the first embodiment of the present invention configured as described above will be described with reference to a flowchart.

  FIG. 2 is a flowchart showing the processing procedure on the side of the information processing apparatus 10 constituting the printing system 1 according to the embodiment of the present invention. In the following description, it is assumed that the print data dedicated memory 40 is connected to the external I / F unit 16 of the information processing apparatus 10.

  As shown in FIG. 2, in the information processing apparatus 10, the CPU 11 performs various information processing by executing various application programs 13a stored in the program storage unit 13 (step S101). It is determined whether or not there is an instruction to store (write) data to an external device connected to the / F unit 16 (step S103).

  Here, when there is an instruction to store data for an external device connected to external I / F unit 16 (step S103; YES), the external device connected to external I / F unit 16 stores print data in CPU 11 It is determined whether it is the dedicated print data dedicated memory 40 (step S105).

  Here, the determination as to whether the external device connected to the external I / F unit 16 is the print data dedicated memory 40 can be made, for example, the hardware name of the external device connected to the external I / F unit 16, etc. Whether the data of the file name “dummy data” of dummy data is stored in addition to the print data in the external device connected to the external I / F unit 16 or based on whether or not it is that of the print data dedicated memory 40 Furthermore, it is determined whether the remaining capacity of the external device connected to the external I / F unit 16 is zero or not. The process of step S105 may be omitted.

  When it is determined that the external device connected to the external I / F unit 16 is not the print data dedicated memory 40 (step S105; NO), a storage (write) error is displayed, such as displaying a storage (write) error on the display unit 14 The output is performed (step S109), and the process is ended.

  On the other hand, when it is determined that the external device connected to the external I / F unit 16 is the print data dedicated memory 40 (step S105; YES), the CPU 11 continues the data stored in the memory 40 (print data dedicated) It is determined whether it is print data (step S107).

  Here, it is determined whether the data stored in the (print data dedicated) memory 40 is print data, for example, a printing device such as a PostScript language or LIPS language, or a dedicated language for a specific printing device This determination can be made based on whether or not the data is described in a page description language that can be printed in S.20. Here, when the CPU 11 converts the data created by the execution of the application program 13a into print data by executing the printer driver program 13b for the printing apparatus 20, the data stored in the print data dedicated memory 40 is the print data. This can also be determined by the presence or absence of execution of the printer driver program 13b.

  That is, when the CPU 11 executes the printer driver program 13 b for the printing apparatus 20 and tries to write data expressed in page description language in the print data dedicated memory 40, the data stored in the print data dedicated memory 40. Is determined to be print data.

  On the other hand, instead of writing data to the print data dedicated memory 40 by executing the printer driver program 13b, if the user of the information processing apparatus 10 is arbitrary data, for example, if it is a school etc. When the confidential data is not printed but copied to the print data dedicated memory 40, it is determined that the data stored in the print data dedicated memory 40 is not print data.

  If the CPU 11 determines that the data stored in the memory 40 is not print data (step S107; NO), the external device connected to the external I / F unit 16 is not the print data dedicated memory 40. In the same manner as in the case where it is determined (step S105; NO), a storage (write) error is displayed on the display unit 14 such as displaying a storage (write) error (step S109), and the processing is ended.

  On the other hand, when the external device connected to the external I / F unit 16 is the print data dedicated memory 40 (step S105; YES) and the data stored in the (print data dedicated) memory 40 is print data (step S107; YES), the CPU 11 first functions as the print data writing means 11a, erases all the data already stored in the print data dedicated memory 40, ie, the print data and the dummy data (step S111) Are stored (step S113).

  Next, the CPU 11 functions as the dummy data writing unit 11b to calculate the free capacity (remaining capacity) of the print data dedicated memory 40 after storing new print data (step S115), and calculates dummy data for the calculated free capacity. It is generated and stored in the print data dedicated memory 40 (step S117).

  As a result, since the print data dedicated memory 40 stores the print data to be printed by the printing device 20 and the dummy data for the free space after storing the print data, the remaining capacity of the print data dedicated memory 40 is 0. It becomes.

  Therefore, in the information processing apparatus 10, it becomes impossible to store data other than print data to be printed by the printing apparatus 20 in the print data dedicated memory 40, that is, data other than print data is not stored. It is possible to prevent carrying out or leakage of data other than print data to be printed by the printing apparatus 20 via the print data dedicated memory 40.

  FIG. 3 is a flowchart showing the processing procedure on the side of the printing apparatus 20 constituting the printing system of the third embodiment according to the present invention.

  As shown in FIG. 3, on the printing apparatus 20 side, the CPU 21 functions as the printing control means 21a of the present invention. For example, the user operates the key input unit 24a of the operation panel unit 24 to perform direct printing, ie external I / I. It is determined whether there is a print instruction of print data stored in the print data dedicated memory 40 connected to the F unit 26 (step S201).

  Here, when there is a print instruction of the print data stored in the print data dedicated memory 40 connected to the external I / F unit 26 (step S201; YES), the CPU 21 of the printing apparatus 20 performs the print control of the present invention. It functions as means 21a, and determines whether print data is stored in the print data dedicated memory 40 (step S203).

  The determination as to whether or not print data is stored in the print data dedicated memory 40 can be made, for example, by executing the printer driver program 13b for the printing apparatus 20 in the data stored in the print data dedicated memory 40 by the CPU 21. It can be determined whether or not data of the file format of print data of the converted page description language is stored.

  Then, when print data that can be printed by the printing device 20 is not stored in the print data dedicated memory 40 (step S203; NO), the CPU 21 of the printing device 20 displays a data read error on the display unit 24b, etc. A reading error is output (step S209), and the printing process is ended.

  On the other hand, when print data that can be printed by the printing device 20 is stored in the printing data dedicated memory 40 (step S203; YES), the CPU 21 of the printing device 20 subsequently determines that the free space of the printing data dedicated memory 40 is It is determined whether it is 0 (step S205).

  Specifically, in the information processing apparatus 10, it is determined by processing of steps S115 and S117 shown in FIG. 2 whether or not dummy data in which the free space of the print data dedicated memory 40 is 0 is stored. Here, 0 of the free space in the print data dedicated memory 40 is the meaning of free space in which additional data can not be written to the print data dedicated memory 40, and the free space of the print data dedicated memory 40 is strictly 0. It does not mean that.

  Then, when the free space of the print data dedicated memory 40 is not 0, that is, when the dummy data is not stored (step S205; NO), the external device connected to the printing device 20 is shown in FIG. It means that the print data dedicated memory 40 in which the print data converted by the process of steps S111 to S117 shown is stored is not stored.

  Therefore, when the CPU 21 of the printing apparatus 20 determines that the print data is not stored in the print data dedicated memory 40 (step S203; NO), the data is displayed on the display unit 24b when the determination is NO in step S205. The read error is output, for example, by displaying the read error (step S209), and the process is ended.

  On the other hand, it is determined that print data is stored in the print data dedicated memory 40 (step S203; YES), and the free space of the print data dedicated memory 40 is 0 (dummy data is stored). In the case (step S205; YES), the external device connected to the external I / F unit 26 stores the print data printable by the printing device 20 in the information processing device 10 in step S113 shown in FIG. It is the print data dedicated memory 40 in which the dummy data of the full available capacity (remaining capacity) is stored by the processing of steps S115 and S117.

  Therefore, when it is determined as YES in step S205, the CPU 21 of the printing device 20 reads the print data stored in the print data dedicated memory 40, causes the printing unit 25 to execute printing (step S207), and ends the processing.

  As described above, according to the printing system 1 of the embodiment of the present invention, in the information processing apparatus 10, when printing is performed by the printing apparatus 20, the print data is stored in the print data dedicated memory 40 as writing. Dummy data for prohibiting additional writing is written in the print data dedicated memory 40 after the print data is written. The dummy data has been described by calculating the free space of the print data dedicated memory 40 and taking the data of the free space as an example, but it is not limited to the format if it is ensured that additional writing can be prohibited. .

  Therefore, in the information processing apparatus 10 of the printing system 1 according to the embodiment of the present invention, data other than print data and dummy data can not be stored in the print data dedicated memory 40. It is possible to prevent the taking out and leakage of data such as important data and confidential data.

  For example, when the spreadsheet data describing the results of all the classes is written as print data in the print data dedicated memory 40 to print the analysis result of the class deviation value, the other print data is printed in the print data dedicated memory 40 Since data can not be stored, it is possible to prevent taking out or leakage of data such as important data or confidential data other than print data.

  On the other hand, in the printing apparatus 20, when the print data dedicated memory 40 is connected to the external I / F unit 26, and the printing apparatus 20 directly instructs printing of the print data stored in the print data dedicated memory 40, printing is performed. Only when the print data is stored in the data dedicated memory 40 and the free space is 0, the print data is printed, while printing is not performed in other cases.

  Therefore, in the printing apparatus 20 of the printing system 1 according to the embodiment of the present invention, print data printable by the printing apparatus 20 is stored in the information processing apparatus 10 in step S113 shown in FIG. Since the print data can be printed only when the print data dedicated memory 40 storing the dummy data full of the free space (remaining capacity) is connected to the external I / F unit 26, Printing can also be prevented.

  In the description of processing on the side of the printing apparatus 20 in FIG. 3, it is determined in step S203 whether print data is stored in the print data dedicated memory 40, and in step S205 whether the free space is 0 or not. Although the present invention is described above, the present invention is not limited to this. First, the process of determining whether the free space is 0 or not is executed, and then the process of determining whether print data is stored is performed. Of course, it may be done at the same time.

Second Embodiment
In the printing system 1 of the first embodiment, in the information processing apparatus 10, the print data dedicated memory 40 can not store data other than the print data and the dummy data. Therefore, printing using the print data dedicated memory 40 is performed. Although it is possible to prevent taking out and leakage of data such as important data and confidential data other than data, since the print data dedicated memory 40 is portable, it is not possible to prevent bringing out and leakage of the print data itself by the print data dedicated memory 40. Therefore, when the print data is important data or confidential data, it can be stored as print data in the print data dedicated memory 40. Therefore, it is possible to carry out or leak the important data or confidential data using the print data dedicated memory 40. It can not prevent.

  Therefore, in the printing system 1 according to the second embodiment of the present invention, it is possible to prevent carry-out and leakage of important data and confidential data using the print data dedicated memory 40 as much as possible.

  FIG. 4 is a conceptual view showing the structure of the print data dedicated memory 40 constituting the printing system 1 of the second embodiment according to the present invention.

  As shown in FIG. 4, the print data dedicated memory 40 constituting the printing system 1 according to the second embodiment of the present invention has a predetermined size (volume) which is portable but difficult to carry out outside the school or company. At least a portion of the case (case) 50 is covered, and at least a portion of the case (50) is connected to the external interface portion 26 of the printing apparatus 20 in a state of being covered by the case 50. In addition, the recessed part which can receive the housing | casing 50 needs to be formed in the circumference | surroundings of the external interface part 26 of the printing apparatus 20 in this embodiment.

  Here, the predetermined size (volume) is, for example, not less than a size of about A5 size which is difficult to put in a pocket of clothes.

  Also, the print data dedicated memory 40 has a predetermined weight of the print data dedicated memory 40 at the same time as the predetermined size or instead of the predetermined size, for example, about 1 kg or more. Also good. The configuration except that the case (case) 50 is attached to the print data dedicated memory 40 is the same as that of the printing system 1 of the first embodiment described above.

  Therefore, according to the printing system 1 of the second embodiment of the present invention, as in the printing system 1 of the first embodiment, carrying out of data such as important data and confidential data other than print data via the print data dedicated memory 40 Not only can leakage be prevented as much as possible, but since the housing 50 having a predetermined size or weight of the print data dedicated memory 40 is attached, it is possible to further prevent the print data dedicated memory 40 from being accidentally returned.

Third Embodiment
The print data dedicated memory 40 according to the second embodiment of the present invention is at least partially covered by the casing 50 having a predetermined size or weight, so that the print data dedicated memory 40 is further prevented from being taken away by mistake. Although it is possible, if the housing 50 is removed from the print data dedicated memory 40, it is difficult to prevent the print data dedicated memory 40 from being taken out.

  Therefore, in the printing system 1 according to the third embodiment of the present invention, when the housing 50 is removed from the print data dedicated memory 40, printing can not be performed by the printing device 20 of the printing room B, and an alarm sound or the like is generated. It was constructed in

  FIG. 5 is a conceptual view showing the structure of the print data dedicated memory 40 constituting the printing system 1 of the third embodiment according to the present invention.

  As shown in FIG. 5, in the printing system 1 according to the third embodiment, the housing 50 having a predetermined size (volume) or weight to which the print data dedicated memory 40 is attached is an IC such as an RFID (radio frequency identifier) type A chip 51 is incorporated. In the IC chip 51, for example, identification information (ID) for identifying the housing 50 is registered in advance.

  FIG. 6 is a flowchart showing the processing procedure on the side of the printing apparatus 20 constituting the printing system of the third embodiment according to the present invention. The same processes as those of the printing apparatus 20 of the printing system according to the first embodiment shown in FIG.

  As shown in FIG. 6, in the CPU 21 of the printing apparatus 20 of the printing system 1 according to the third embodiment of the present invention, the user operates the key input unit 24a of the operation panel unit 24 to connect to the external I / F unit 26. If an instruction for direct printing of print data stored in the print data dedicated memory 40 is issued (step S201; YES), the process of determining whether the print data is stored in step S203 and the free space of step S205 are Before the determination process whether or not it is 0, communication such as short distance communication is performed with the IC chip 51 provided on the housing 50 to read identification information (ID) from the IC chip 51 and the print data memory 40 is read. It is determined whether the housing 50 is mounted (step S301).

  If the identification information (ID) read from the IC chip 51 matches the identification information of the housing 50 (step S301; YES), this means that the housing 50 is attached to the print data dedicated memory 40, so the third embodiment In the same manner as the printing device 20 of the first embodiment described above, the CPU 21 of the printing device 20 determines whether the print data in step S203 is stored or not, and whether the free space in step S205 is 0 or not. The determination process is performed, and the subsequent process is continued.

  On the other hand, when the identification information (ID) can not be read from the IC chip 51 or when the read identification information (ID) does not match the identification information of the housing 50 (step S301; NO), the memory for print data only The CPU 50 of the printing apparatus 20 according to the third embodiment causes the display unit 24b to read data on the display unit 24b, because the housing 50 is removed from the housing 40, another housing 50 is mounted, or the like. Is displayed, and a reading error is output (step S209), and the process is ended.

  Therefore, according to the printing system 1 of the third embodiment of the present invention, as in the printing system 1 of the second embodiment, it is possible not only to prevent bringing out or leakage of data such as important data or confidential data other than print data as much as possible. The housing 50 having a predetermined size or weight can also prevent the print data memory 40 from being carried away by mistake, and also print using the print data memory 40 with the housing 50 removed or remodeled. It can prevent.

  Therefore, it is expected that the user will not remove or remodel the housing 50 from the print data dedicated memory 40. In this respect, it is possible to prevent the print data dedicated memory 40 from being accidentally brought out or remodeled, etc. .

  Further, in the printing system 1 according to the third embodiment, communication such as short distance communication is performed with the IC chip 51 provided on the housing 50 of the memory for print data only 40 at the entrance or entrance of the school. If a gate or the like having a readable communication means is provided, and it is attempted to carry out the print data dedicated memory 40 with the housing 50 by mistake, an alarm is generated at the gate, etc. It is also possible to prevent taking 40 further.

1 ... printing system 10 ... information processing device 11 ... CPU
11a: print data writing means 11b: dummy data writing means 12: memory, 13: program storage unit 13a: application program 13b: printer driver program 14: display unit 15: data input unit 16: external interface (I / F) unit 20 ... Printing device 21 ... CPU
21a ... printing control means 22 ... memory 23 ... program storage unit 24 ... operation panel unit 24a ... key input unit 24b ... display unit 25 ... printing unit 25 ... data input unit 26 ... external interface (I / F) unit 30 ... staff room LAN
40: Memory for exclusive use of print data (data storage means)
50 ... Case (case)
51 ... IC chip

Claims (3)

A printing system comprising: an information processing apparatus for writing print data to a portable data storage means; and a printing device connected to the data storage means for reading out print data stored in the data storage means and printing There,
The information processing apparatus is
Print data writing means for writing and storing print data in the data storage means;
Dummy data writing means for writing and storing in the data storage means dummy data for prohibiting additional writing to the data storage means after the print data is written;
The printing device is
When the data storage unit is connected and there is a print instruction of the print data stored in the data storage unit, the printing is performed only when the print data and the dummy data are stored in the data storage unit. A printing system comprising printing control means for printing data.   The printing system according to claim 1, wherein the data storage unit is connected to a connection provided in the printing apparatus in a state where at least a part of the data storage unit is covered by a housing having a predetermined size. In the case of
An IC chip in which identification information for identifying the case is registered in advance is provided.
When the data storage means is connected, the print control means reads the identification information from the IC chip of the housing on which the data storage means is mounted, and the data storage means is read based on the read out identification information. The printing system according to claim 2, wherein it is determined whether or not printing of the print data stored in is performed.

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