JP2010141854A - Print system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a print system for collectively managing registrations of keywords to restrict printing and preventing a processing burden related to keyword detection or the like from being concentrated to a printing apparatus. <P>SOLUTION: An image forming apparatus 10 has a function as a keyword management device for receiving and storing a registration of a keyword to restrict printing and transferring the stored keyword to a terminal device 30, and the terminal device 30 is in charge of a function of retrieving the keyword transferred from the image forming apparatus 10 out of print data and prohibiting or restricting printing related to the print data (converting a keyword part into an unreadable image) if detected. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a printing system having a function for prohibiting / restricting printing including a keyword such as secret information.

  In this type of conventional system, a secret information keyword group that is subject to printing restrictions is stored in the storage unit of the host device that instructs printing, and whether or not the secret information keyword is included in the print data in the host device. There is a system in which the estimation result is added to the print data and transmitted to the printing apparatus, and the printing apparatus that receives the estimation data replaces the character code of the portion indicated by the estimation result with a concealed character code and prints (for example, (See Patent Document 1).

  Also, a storage unit that stores a group of keywords to be restricted from printing, and a printing apparatus that detects keywords stored in the storage unit from print data and, when detected, temporarily stops printing related to the print data. (For example, refer to Patent Document 2).

JP 2007-213382 A JP 2004-23149 A

  A recent printing apparatus has a function of connecting to a network, and print data can be transmitted from each terminal device connected to the network to be printed.

  In such an environment, in the configuration in which the keyword group to be printed is stored in the storage unit of the host device that instructs printing, it is necessary to register the keyword for each host device, which takes time. In addition, there is a possibility that the registration of a keyword to one of the host devices may be omitted, or the user may delete the keyword from the host device without the administrator's permission, which may cause a security problem.

  On the other hand, the configuration in which the keyword storage unit is provided in the printing apparatus and the keyword detection process is performed in the printing apparatus places a heavy processing burden on the printing apparatus, leading to a decrease in productivity. In particular, when print data is sent from the terminal device in the bitmap format, the keyword cannot be detected by the character code, and the processing load is further increased if the keyword is detected by the OCR process. .

  The present invention is intended to solve the above-described problem, and provides a printing system that can collectively manage registration of keywords that are subject to printing restrictions and that does not concentrate the processing burden related to keyword detection on the printing apparatus. It is intended to provide.

  The gist of the present invention for achieving the object lies in the inventions of the following items.

[1] In a printing system in which a terminal device that transmits print data to a printing device and a keyword management device are connected to be communicable,
The keyword management device includes:
An input unit that receives input of keywords that are subject to printing restrictions,
A storage unit for storing a keyword input from the input unit;
A transmission unit that transmits the keyword stored in the storage unit to the terminal device;
With
The terminal device searches a keyword received from the keyword management device from print data instructed to be printed, and if the keyword is detected, prohibits printing related to the print data or a portion of the detected keyword The printing system converts the print data so as to be unreadable and transmits the converted data to the printing apparatus.

  In the above invention, the keyword management device has a function of receiving and storing a keyword setting and transferring it to the terminal device. When the terminal device searches and detects the received keyword in the print data, It functions to prohibit or restrict printing related to print data. By sharing the functions in this way, a printing system can be provided in which keyword registration can be collectively managed and the processing load related to keyword detection or the like is not concentrated on the printing apparatus. Note that the printing system according to this claim does not include a printing apparatus and is prepared separately.

[2] The input unit is either a print prohibition setting that prohibits printing of print data including a keyword that is subject to print restriction, or a print restriction setting that converts and prints the keyword part so that the keyword part is unreadable. Accept settings for
The storage unit stores the setting received by the input unit,
The transmission unit transmits the setting stored in the storage unit to the terminal device,
If the setting received from the keyword management device is the print prohibition setting for the print data in which the keyword is detected, the terminal device prohibits the printing, and if the setting is the print restriction setting, The printing system according to [1], wherein the conversion is performed and transmitted to the printing apparatus.

  In the above invention, selection setting for prohibiting printing or limiting printing is performed by the keyword management device, the setting information is transmitted from the keyword management device to the terminal device, and the terminal device uses the setting information received from the keyword management device. Therefore, printing prohibition or printing restriction is performed.

[3] When the terminal device prohibits printing related to the print data in which the keyword is detected or performs the conversion, the terminal device notifies the user of the terminal device to that effect [1] or The printing system according to [2].

  In the above invention, the user is notified that printing has been performed with printing prohibited or restricted. As a result, the user can recognize that the keyword subject to printing restriction is included and correct the document, or can confirm that printing has been prohibited or restricted.

[4] including the printing apparatus,
The printing system according to any one of [1] to [3], wherein the keyword management device is incorporated in the printing device.

  In the above invention, the printing apparatus and the keyword management apparatus are configured as an integrated apparatus. Hardware resources are saved and the system configuration is simplified.

[5] When the keyword is detected from the print data instructed to be printed, the terminal device includes user information of the user who made the instruction, information on the print data, and date / time information on the instruction. Send the detection information to the printing device,
The printing system according to [4], wherein the printing device includes a log storage unit that stores the detection information received from the terminal device.

  In the above invention, a history of printing that has been prohibited or restricted is stored in the printing apparatus.

  According to the printing system of the present invention, it is possible to collectively manage registration of keywords that are subject to printing restrictions, and the processing burden related to keyword detection and the like is not concentrated on the printing apparatus, thereby preventing a decrease in printing productivity. Is done.

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

  FIG. 1 shows a system configuration example of a printing system 5 according to an embodiment of the present invention. An image forming apparatus 10 having a function as a keyword management apparatus for setting, storing and transferring keywords and a function as a printing apparatus, and instructing the image forming apparatus 10 to create print data and print the print data (request) ) Are connected to a network 2 such as a LAN (Local Area Network). Although two image forming apparatuses 10 are connected to the network 2 here, one image forming apparatus 10 may be used.

  The printing system 5 can register in advance a keyword that should be restricted for confidentiality and the like, and prohibits printing related to print data including the registered keyword or makes an unreadable keyword part. It has a function to print after conversion to (print restriction). Note that “convert to an unreadable image” includes conversion to a character string whose meaning cannot be recognized. In the printing system 5, the image forming apparatus 10 has a function of receiving and storing keyword settings and transferring the stored keywords to the terminal device 30. The transferred keyword is searched from the print data, The functions are distributed so that the terminal device 30 has a function of prohibiting or restricting printing related to the print data when it is detected (a keyword censor function).

  FIG. 2 shows an example of an electrical schematic configuration of the image forming apparatus 10. The image forming apparatus 10 is configured as a multifunction machine having a copy function for reading a document image, printing the corresponding image on paper, and outputting it, a scanner function, a printer function, a facsimile function, and the like. The image forming apparatus 10 includes a scanner 13, a printer unit 14, a facsimile unit 15, and a ROM (Read Only) via a bus 12 to a central processing unit (CPU) 11 that performs overall control of the operation of the image forming apparatus 10. Memory) 16, RAM (Random Access Memory) 17, non-volatile memory 18, display unit 19, operation unit 21, image processing unit 22, network I / F unit 23, and a large-capacity non-volatile storage device The hard disk device 24 is connected.

  Various programs are stored in the ROM 16, and the functions of the image forming apparatus 10 are realized by the CPU 11 executing processes according to these programs. The RAM 17 is a random access used as a work memory for temporarily storing various data when the CPU 11 executes a program, an image memory for storing image data, a communication buffer for temporarily storing data related to transmission and reception, and the like. -It is memory.

  The nonvolatile memory 18 is a rewritable memory that retains the stored contents even when the power is turned off. The nonvolatile memory 18 stores various setting contents such as setting information indicating whether printing is prohibited or restricted, whether to share keywords with other image forming apparatuses 10, user information, user authentication information, and department management. In addition to information, device information, and system information, recognition information for determining whether or not received print data is generated by a printer driver having a keyword censoring function is stored.

  The image forming apparatus 10 has a function of determining whether the printer driver installed in the terminal device 30 is a printer driver (compatible printer driver) that should be permitted to print, and not performing printing from other than the compatible printer driver. is doing. The above authentication information is used for the determination. That is, the printer driver installed in the terminal device 30 is a driver authentication of a predetermined format generated from the model of the corresponding printer (image forming apparatus 10) and the type of function of the printer driver (such as the presence or absence of a keyword censor function). This driver authentication code is also transmitted when a print instruction signal or print data is transmitted to the image forming apparatus 10. The image forming apparatus 10 determines whether or not the print data is from the printer driver (compatible printer driver) that should be permitted to print by comparing the received driver authentication code with the previous authentication information. Decide not to.

  The scanner unit 13 performs a function of optically reading a document and acquiring image data. The scanner unit 13 sequentially moves, for example, a light source that irradiates light on a document, a line image sensor that receives the reflected light for one line in the width direction, and a reading position in units of lines in the length direction of the document. An optical path composed of a lens, a mirror, and the like for guiding the reflected light from the document to the line image sensor to form an image, a conversion unit for converting the analog image signal output from the line image sensor into digital image data, etc. It is prepared for.

  The printer unit 14 has a function of printing an image corresponding to image data on a recording sheet. Here, it has a recording paper transport device, a photosensitive drum, a charging device, a laser unit, a developing device, a transfer separation device, a cleaning device, and a fixing device, and forms an image by an electrophotographic process. It is configured as a so-called laser printer. Other types of printers may be used.

  The facsimile unit 15 performs communication control for facsimile transmission and facsimile reception, outgoing call (dial), incoming call, connection with a telephone line, and the like.

  The display unit 19 performs various operation screens, setting screens, guidance screens, a function for displaying warnings, a function for displaying log information, and the like, and includes a liquid crystal display (LCD). The operation unit 21 is configured by various operation switches such as a touch panel, a numeric keypad, and a start button that are provided on the screen of the liquid crystal display and detects a pressed coordinate position, and has a function as an input unit that receives various operations from the user. Fulfill. A keyword setting registration operation and a print prohibition / print restriction selection operation are received from the user or the administrator through the operation unit 21. It should be noted that the keyword input and the setting of whether printing is prohibited or restricted may be received from the administrator terminal via the network 2.

  The image processing unit 22 performs rasterization processing that converts print data received from the terminal device 30 into image data (bitmap data), compression encryption processing that compresses and encrypts image data, and compression and encryption of image data that has been encrypted. A restoration decoding process for decoding and decompression, an image rotation process, and the like are performed.

  The network I / F unit 23 performs a function of communicating with other image forming apparatuses 10 and terminal devices 30 via the network 2 to transmit and receive various data and information. Information exchange with other image forming apparatuses 10 (information exchange for keyword sharing) is also performed through the network I / F unit 23.

  In addition to storing various files such as image data and print data, the hard disk device 24 stores a keyword storage unit 25 that stores keywords set through the operation unit 21 and log information about a print job received from the terminal device 30. It functions as the log storage unit 26. Further, print data received from the terminal device 30 (print job job data), print information, and the like are also stored.

  The log information to be stored includes the processing date / time of the print job including the keyword (job transmission date / time from the terminal device 30 or job reception date / time at the image forming apparatus 10), job name or job ID, and terminal device of the job transmission source. ID, user name or login name to user's terminal, login password name to user's terminal, number of copies, print job contents (print paper size, print layout, staple, punch setting information, print image) information Etc. are included.

  FIG. 3 is a block diagram illustrating a schematic configuration of the terminal device 30. The terminal device 30 is configured by installing a predetermined program on a general-purpose PC (Personal Computer). The terminal device 30 is connected to a CPU 31 via a bus 32 by connecting a ROM 33, a RAM 34, a network I / F unit 35, an operation unit 36, a display device 37, a hard disk device 38, a nonvolatile memory 39, and the like. Composed.

  The ROM 33 stores a startup program executed by the CPU 31 and various fixed data. The nonvolatile memory 39 stores user information and user ID of a user who uses the terminal device 30, user authentication information, identification information (terminal ID) of the terminal device, an IP address, and the like.

  In addition to the OS (Operating System) program, the hard disk device 38 stores various application programs 41 and printer drivers 40 that operate on the OS. The printer driver 40 and the application program 41 are read from the hard disk device 38 and developed in the RAM 34 at the time of execution. The CPU 31 executes those programs expanded on the RAM 34.

  The operation unit 36 includes a keyboard, a mouse (pointing device), and the like, and receives a document input operation, a file to be printed, a print instruction, and the like from the user. The display device 37 is configured by a liquid crystal display or the like, and fulfills a function of displaying various screens such as an operation screen, a setting screen, and a warning screen according to display data created by the printer driver 40 and the application program 41. The network I / F unit 35 performs a function of transmitting / receiving various data to / from an apparatus such as the image forming apparatus 10 through the network 2.

  In the terminal device 30, when the CPU 31 executes the application program 41, a function for creating a document, an image, or the like, a function for receiving a print instruction from the user, and a function for instructing the printer driver 40 to print are provided. In addition, the CPU 31 executes the program of the printer driver 40 to create a print data in a format suitable for the image forming apparatus 10 specified as the output destination from the file to be printed. A function for receiving setting information such as whether printing is prohibited or printing restricted, a function for storing the received keyword and setting information in the hard disk device 38, and a keyword transferred from the image forming apparatus 10 and stored in the hard disk device 38. A function to search or instruct print data for the print data according to the setting information transferred from the image forming apparatus 10 when it is searched from the designated print data (print file) and detected. A function for creating log information related to printing execution, printing prohibition and printing restriction, Function of transmitting print data and log information through the workpiece 2 to the image forming apparatus 10, various operation functions to warn or display or accepted from the user of is provided about printing.

  4 to 6 show the flow of printing in the printing system 5. In the image forming apparatus 10, when an input operation of a keyword subject to printing restriction is performed by the administrator through the operation unit 21, the CPU 11 stores the input keyword in the keyword storage unit 25 of the hard disk device 24 (step S 101). ). A large number of keywords can be input and stored in the keyword storage unit 25.

  Next, when a keyword subject to print restriction is detected from the print data, whether printing related to the print data is prohibited (print prohibition setting), or only the relevant keyword portion of the print data is unreadable The administrator receives selection / setting of whether to convert to an image and print (print restriction setting). Further, a setting (sharing setting) as to whether or not the keyword is shared by the plurality of image forming apparatuses 10 is received, and the received setting contents are stored in the nonvolatile memory 18 (step S102).

  The image forming apparatus 10 that shares the keyword can be designated. As a designation method, a common group name (or group number is acceptable) is assigned to a plurality of image forming apparatuses 10 sharing a keyword, and a device to be shared by the group name is designated, or shared by any one unit If another image forming apparatus 10 as a partner is set, there is a method of exchanging information between the other set image forming apparatuses 10 and sharing a keyword (setting of an information exchange group).

  If “keyword sharing” is set (step S103; Yes), each of the image forming apparatuses 10 stores them with the other image forming apparatuses 10 designated as sharing targets. The keywords are exchanged and shared (step S104). In other words, all keywords stored in each image forming apparatus 10 to be shared are stored in the keyword storage unit 25 as keywords to be restricted.

  Also, if a keyword is set for one unit and sharing is set for another image forming device, the keyword set for one unit is applied to all image forming devices that are set for sharing. Form may be sufficient.

  In the case of “no sharing setting” (step S103; No), no keyword information is exchanged with other image forming apparatuses 10. In this case, for printing performed by the image forming apparatus 10, only the keyword input by the image forming apparatus 10 is a target of the keyword censor function.

  On the other hand, in the terminal device 30, an application program and a printer driver are installed (step S201). Further, the image forming apparatus 10 that is a transmission destination (output destination) of print data is set by a user operation (step S202).

  Next, the CPU 11 of the image forming apparatus 10 searches for a terminal device 30 in which a printer driver (compatible printer driver) that can support the image forming apparatus 10 and supports the keyword censor function is installed (step). S105). Specifically, the terminal device 30 connected to the network 2 is inquired about information or permission code indicating the type and version of the installed printer driver (in this case, the above-mentioned driver authentication code is inquired). The terminal device 30 in which the compatible printer driver is installed is specified based on the acquired information.

  As a result of the search, if there is no terminal device 30 having a compatible printer driver (step S106; No), the process related to printing is terminated. If there is a terminal device 30 equipped with a compatible printer driver (step S106; Yes), all the keywords registered in the keyword storage unit 25 and the nonvolatile memory 18 are stored for all the corresponding terminal devices 30. The setting information indicating whether the print prohibition setting or the print restriction setting is set is transmitted (step S107).

  Each terminal device 30 receives the keyword and setting information transferred from the image forming apparatus 10 and stores them in the hard disk device 38 (step S203). The processing so far corresponds to preparation before printing.

  When the user instructs printing from the application of the terminal device 30 after completion of the pre-preparation (step S204; Yes), the printer driver 40 converts the print data designated as the printing target and is designated as the output destination. Print data (print file) in a format suitable for the image forming apparatus 10 is created (step S205). Here, print data in a predetermined page script language (PDL) format that expresses characters, graphics, and the like by vector data is created.

  Next, the printer driver 40 retrieves the keyword that has been transferred from the image forming apparatus 10 and stored in the hard disk device 38 from the previously created print data (step S206), and if no keyword is detected (step S206). (S207; No), the print data and log information are transmitted to the output image forming apparatus 10 (step S208), and the process is terminated. The print data to be transmitted is added with the device ID of the terminal device 30, the above-described driver authentication code for determining whether or not the printer driver is compatible.

  In this case, the log information includes information indicating that no keyword has been detected, print job processing date and time (job transmission date and time from the terminal device 30), job name or job ID, and job transmission source terminal device. ID, user name or login name to user's terminal, login password name to user's terminal, number of copies, print job contents (print paper size, print layout, staple, punch setting information, print image) information Etc. are included. As the processing date and time, the reception date and time on the image forming apparatus 10 side may be used without transmitting the transmission date and time from the terminal device 30. The image forming apparatus 10 may store both the transmission date and time and the reception date and time of the job as log information.

  When a keyword is detected (step S207; Yes), it is checked whether the setting information notified from the image forming apparatus 10 is a print prohibition setting or a print restriction setting (step S209). (Step S209; prohibited), the transmission of the print data with the detected keyword is stopped (prohibited) (Step S210). Further, a warning message is displayed on the display device 37 of the terminal device 30 indicating that printing has been stopped because a keyword subject to printing restriction has been detected (step S211). Further, log information indicating that printing has been canceled is transmitted to the image forming apparatus 10 designated as the output destination (step S212), and the processing is terminated.

  The log information in this case includes information indicating that printing has been canceled due to the detection of a keyword, print job cancellation date and time, job name or job ID, ID of the terminal device of the job transmission source, user name or user The login name to the terminal, the login password name to the user terminal, the number of copies, the contents of the print job (print paper size, print layout, staple, punch setting information, print image), and the like are included. The stop date / time may not be transmitted from the terminal device 30 but the reception date / time at the image forming apparatus 10 may be used. Further, the image forming apparatus 10 may store both the job cancellation date and time and the reception date and time as log information.

  If the setting information received from the image forming apparatus 10 is a print restriction setting (step S209; restriction), the printer driver 40 converts the print data so that the detected keyword portion is unreadable (see FIG. Step S213). For example, the corresponding keyword portion is painted in black or replaced with a symbol such as “*” to convert the keyword into meaningless content.

  Further, a warning message is displayed on the display device 37 of the terminal device 30 indicating that printing is restricted because a keyword subject to printing restriction has been detected (the keyword part has been replaced with an unreadable image) (step). S214). Further, the converted print data and log information indicating that printing is restricted are transmitted to the image forming apparatus 10 designated as the output destination (step S215), and the process is terminated. The print data to be transmitted is added with the device ID of the terminal device 30, the above-described driver authentication code for determining whether or not the printer driver is compatible.

  Further, the log information in this case includes information indicating that printing is restricted (the keyword portion is unreadable) due to the detection of the keyword, processing date / time of the print job (job transmission date / time from the terminal device 30) ), Job name or job ID, ID of terminal device of job transmission source, user name or login name to user terminal, login password name to user terminal, number of prints, print job contents (print paper size, print Layout, stapling, punch setting information, print image) information, and the like. As the processing date and time, the reception date and time on the image forming apparatus 10 side may be used without transmitting the transmission date and time from the terminal device 30. The image forming apparatus 10 may store both the transmission date and time and the reception date and time of the job as log information.

  When the image forming apparatus 10 receives print data from the terminal device 30 (step S108; Yes), based on the driver authentication code added to the print data, the print data has the compatible printer driver. It is determined whether or not it is transmitted from. If it has not been transmitted from the terminal device 30 having a compatible printer driver (step S109; No), printing is rejected (step S110) and the process is terminated. In this case, a notification that printing has been rejected may be transmitted to the terminal device 30.

  If it is confirmed that the print data is transmitted from the terminal device 30 having the compatible printer driver (step S109; Yes), printing based on the print data is executed (step S111). In the printed matter, the keyword portion is an unreadable image (black solid or the like).

  When the image forming apparatus 10 receives the log information (step S112; Yes), the image forming apparatus 10 stores the received log information in the log storage unit 26 (step S113). Thereafter, when an operation related to the display of log information is received from the operation unit 21 (step S114; Yes), the log information stored in the log storage unit 26 is displayed on the display unit 19 (step S115), and the process is terminated. Only a part of the log information can be specified and displayed. For example, it is possible to narrow down by processing date and time, user name, and the like.

  By displaying the log information, the administrator or the like can recognize a history of printing in which a keyword is detected and printing is prohibited or restricted. For example, an administrator can warn a user who frequently performs print-restricted printing. The log information can be printed out.

  As described above, since the keywords are collectively managed on the image forming apparatus 10 side, even if there are a plurality (a large number) of terminal apparatuses 30 requesting the image forming apparatus 10 to print via the network 2, the keywords are managed for each terminal apparatus 30. There is no need to register keywords, and the labor of registration is reduced. In addition, there is no possibility that the registration of a keyword with respect to any one of the terminal devices 30 will occur, or the user will not delete the keyword from the terminal device 30 without the administrator's permission, thereby improving security.

  Even when printing is requested from the plurality of terminal devices 30 to the same image forming apparatus 10, processing such as searching for a keyword from print data is performed by each terminal device 30. The processing burden is not excessive, and the productivity is not reduced due to keyword detection.

  Furthermore, even when a keyword is detected and printing is prohibited, log information is saved, so it is possible to know who is instructing when to print a document that is prohibited from printing, and the administrator can Appropriate action can be taken.

  Although various embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to that shown in the embodiments, and there are changes and additions within the scope not departing from the gist of the present invention. Is included in the present invention.

  For example, in the embodiment, a function as a keyword management device (a function for receiving keyword input, a function for storing an input keyword, a function for sharing a keyword, and a setting related to printing prohibition setting / printing restriction setting are received and set. Are stored in the image forming apparatus 10. However, the image forming apparatus 10 may be configured as an individual apparatus such as a server. In this case, the keyword registration operation is performed from the administrator terminal via the network 2 or is directly input from an input device such as a keyboard of the keyword management device. Further, if there is only one keyword management device, the keyword sharing function is unnecessary.

  In the embodiment, keywords and setting information are transferred from the image forming apparatus 10 to all the terminal devices 30. However, the terminal device 30 receiving the keyword and setting information from the image forming apparatus 10 transfers them to the other terminal devices 30. It may be configured to transfer to the terminal device 30. For example, the terminal device 30 that has received the transfer from the image forming apparatus 10 searches the terminal device 30 that has not yet received the transfer from the image forming apparatus 10 and has the image forming apparatus 10 as the output destination, and corresponds. You may be comprised so that it may transfer to the terminal device 30.

  The log information only needs to be transmitted and stored from the terminal device 30 to the image forming apparatus 10 when a keyword is detected in the print data, and in the case of printing without printing prohibition or printing restriction by the keyword. The log information may not be left.

  Moreover, the configuration may be such that a keyword sharing function is not provided.

  In the embodiment, the image forming apparatus 10 has been described as an example. However, a facsimile function, a copy function, or the like may be omitted, and a printer apparatus may be used.

It is explanatory drawing which shows the system configuration example of the printing system concerning embodiment of this invention. 1 is a block diagram showing a schematic configuration of an image forming apparatus of a printing system according to an embodiment of the present invention. It is a block diagram which shows schematic structure of the terminal device of the printing system which concerns on embodiment of this invention. It is a sequence diagram which shows the flow of the printing process in the printing system which concerns on embodiment of this invention. FIG. 5 is a sequence diagram showing a continuation of FIG. 4. FIG. 6 is a sequence diagram illustrating a continuation of FIGS. 4 and 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 ... Network 5 ... Printing system 10 ... Image forming apparatus 11 ... CPU
12 ... Bus 13 ... Scanner unit 14 ... Printer unit 15 ... Facsimile unit 16 ... ROM
17 ... RAM
DESCRIPTION OF SYMBOLS 18 ... Non-volatile memory 19 ... Display part 21 ... Operation part 22 ... Image processing part 23 ... Network I / F part 24 ... Hard disk apparatus 25 ... Keyword memory | storage part 26 ... Log storage part 30 ... Terminal device 31 ... CPU
32 ... Bus 33 ... ROM
34 ... RAM
35 ... Network I / F unit 36 ... Operation unit 37 ... Display device 38 ... Hard disk device 39 ... Non-volatile memory 40 ... Printer driver 41 ... Application program

Claims (5)

In a printing system in which a terminal device that transmits print data to a printing device and a keyword management device are connected to be communicable,
The keyword management device includes:
An input unit that receives input of keywords that are subject to printing restrictions,
A storage unit for storing a keyword input from the input unit;
A transmission unit that transmits the keyword stored in the storage unit to the terminal device;
With
The terminal device searches a keyword received from the keyword management device from print data instructed to be printed, and if the keyword is detected, prohibits printing related to the print data or a portion of the detected keyword The printing system converts the print data so as to be unreadable and transmits the converted data to the printing apparatus. The input unit sets either a print prohibition setting that prohibits printing of print data including a keyword that is subject to print restriction, or a print restriction setting that converts and prints the keyword part to be unreadable. Accept,
The storage unit stores the setting received by the input unit,
The transmission unit transmits the setting stored in the storage unit to the terminal device,
If the setting received from the keyword management device is the print prohibition setting for the print data in which the keyword is detected, the terminal device prohibits the printing, and if the setting is the print restriction setting, The printing system according to claim 1, wherein the conversion is performed and transmitted to the printing apparatus. 3. The terminal device according to claim 1, wherein when the terminal device prohibits printing related to the print data in which the keyword is detected or performs the conversion, the terminal device notifies the user of the terminal device to that effect. Printing system. Including the printing device;
The printing system according to any one of claims 1 to 3, wherein the keyword management device is incorporated in the printing device. When the keyword is detected from the print data instructed to print, the terminal device includes user information of the user who has made the instruction, information on the print data, and date / time information related to the instruction Sending information to the printing device;
The printing system according to claim 4, wherein the printing apparatus includes a log storage unit that stores the detection information received from the terminal device.

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