JP2013010187A - Stencil printing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a user-friendliness while properly protecting secret information in a stencil printing apparatus.SOLUTION: The stencil printing apparatus includes: a panel unit 100 for receiving input such as secret setting instructions, printing instructions, and authentication information, from a user; a secret mode setting unit 90 for receiving the secret setting instructions to a first print drum 45, setting a secret mode to prohibit printing using a plate-made stencil wound on the first print drum 45 when receiving the instructions, and recording the authentication information of the user issuing the instructions on a first memory 45; and a print control unit 92, upon receiving the printing instructions by the first print drum 45 using the panel unit 100 when the secret mode is set in the first print drum 45, for comparing the authentication information of the user issuing the instructions with the authentication information recorded in the first memory 45, and permitting the printing by the first print drum 45 if both authentication information is coincident with each other.

Description

  The present invention relates to a stencil printing apparatus that includes a printing drum and winds a stencil sheet that has already been made on the printing drum to perform printing.

  Conventionally, a printing paper is inserted between a printing drum that rotates with a pre-made stencil sheet wound around an outer peripheral surface, and a press roller that rotates while being pressed against the printing drum, and ink in the printing drum is made into a pre-made stencil. There has been proposed a stencil printing apparatus that performs printing by extruding from a hole in a base paper and transferring ink onto a printing paper.

  In the stencil printing apparatus, a stencil-made stencil sheet that has been punched based on the data of a document to be printed is created and subjected to a printing process. Therefore, after printing, the stencil-made stencil sheet remains in the apparatus. Therefore, in Patent Document 1, when a document having confidential information is printed, a confidentiality mode is provided to protect the confidential information from a malicious third party. When this mode is set, the confidential information is prepressed. There has been proposed a stencil printing apparatus in which a stencil sheet is discarded and a new unstenciled stencil sheet is wound around a plate cylinder.

  Further, in Patent Document 2, when the confidentiality mode is set, an instruction for stencil is issued next, and the removal of the drum on which the stencil sheet has been wound is restricted until the stencil sheet is replaced, In addition, a stencil printing apparatus that prohibits execution of printing processing has been proposed.

JP 59-198185 A Japanese Patent No. 3566367

  However, in the conventional stencil printing apparatus, once the confidentiality mode is set, the stencil sheet is always replaced before the next printing starts. While there is a merit that it is possible to effectively limit the increase, there is a demerit that the user's usability deteriorates because the increase in printing by the authorized user with respect to the confidential information is similarly limited.

  In view of the circumstances described above, an object of the present invention is to provide a stencil printing apparatus capable of ensuring user convenience while appropriately protecting confidential information.

  The stencil printing apparatus of the present invention comprises a printing drum, and in the stencil printing apparatus that performs printing by winding a stencil sheet after making a plate, the stencil is wound around the printing drum in accordance with an instruction from a user. A confidential mode setting unit for setting a confidential mode for prohibiting printing using a stencil sheet, a recording medium for recording authentication information of a user who has set the confidential mode in the confidential mode setting unit, and printing for accepting a print instruction from the user An instruction receiving unit, an authentication information input receiving unit that receives input of authentication information from the user, and a pre-printed stencil sheet that is prohibited from printing by the print instruction receiving unit when the confidential mode is set. When the print instruction by the print drum is received, the authentication information of the user who issued the print instruction received by the authentication information input receiving unit is recorded on the recording medium. And a print permission unit that permits printing by a printing drum on which a prepressed stencil sheet that is prohibited from printing if the two pieces of authentication information match each other is compared with the certificate information. To do.

  Here, the recording medium may be provided directly on the main body of the stencil printing apparatus, or when the printing drum can be extracted from or inserted into the main body of the stencil printing apparatus. It may be provided integrally with the printing drum.

  The stencil printing apparatus includes a plurality of printing drums, and the stencil printing apparatus performs the printing with a part or all of the plurality of printing drums, wherein the confidential mode setting in the confidential mode setting unit includes a plurality of printing drums. It is made by specifying which printing drum of the drum is used to prohibit printing using the stencil stencil sheet, and the print permission unit is set to the confidential mode by the confidential mode setting unit. When the print instruction by the specified print drum is received when the authentication information is set, the authentication information of the user who has issued the print instruction received by the authentication information input reception unit corresponds to the specified print drum on the recording medium. Compared with the authentication information recorded, the printing using the specified printing drum may be permitted as long as the authentication information matches.

  At this time, the recording medium is a non-volatile memory provided integrally with each of the plurality of printing drums, and when the confidential mode setting unit receives the confidential mode setting instruction, the authentication information of the user who has set the confidential mode is displayed. The information is recorded on a recording medium provided integrally with the specified printing drum, and when the print permission unit is set to the confidential mode by the confidential mode setting unit, the identification is performed by the print instruction receiving unit. When the print instruction by the specified print drum is received, the authentication information of the user who issued the print instruction received by the authentication information input receiving unit is recorded on the recording medium provided integrally with the specified print drum. If the authentication information matches the authentication information, printing by the specified printing drum may be permitted.

  The stencil printing apparatus further includes a confidentiality cancellation instruction receiving unit that receives a confidentiality cancellation instruction from a user, and when the confidential mode setting unit is set to the confidential mode, the confidentiality cancellation instruction receiving unit instructs the confidentiality cancellation instruction. If the authentication information is received, the authentication information input accepting unit accepts the authentication information of the user who issued the instruction to compare with the authentication information recorded on the recording medium. And the authentication information recorded on the recording medium may be deleted.

  According to the stencil printing apparatus of the present invention, in a stencil printing apparatus that includes a printing drum and winds a stencil sheet that has been made pre-printed on the printing drum, the stencil printing machine is wound around the printing drum in accordance with an instruction from a user. A confidential mode setting unit for setting a confidential mode for prohibiting printing using a pre-made stencil sheet, a recording medium for recording authentication information of a user who has set the confidential mode in the confidential mode setting unit, and a print instruction from the user A print instruction receiving unit that accepts input of authentication information from a user, an authentication information input receiving unit that receives input of authentication information from a user, and a preprinted stencil sheet that is prohibited from printing by the print instruction receiving unit when the confidential mode is set. When the print instruction by the mounted printing drum is received, the authentication information of the user who issued the print instruction received by the authentication information input receiving unit is recorded on the recording medium. Compared with the authentication information, the printing permission section that permits printing by the printing drum on which the stencil-made stencil sheet that is prohibited from printing if the two authentication information matches, is provided. Even after the confidential mode has been set for the stencil sheet, the user who has authority to dispose of the stencil sheet can print again using the stencil sheet. Yes, it is possible to improve the convenience of the user compared to the conventional stencil printing apparatus, in which the confidential information is appropriately protected and the re-printing using the stencil sheet is impossible once the confidentiality mode is set. it can.

  At this time, when the recording medium is a non-volatile memory provided integrally with the printing drum, the printing drum in which the confidential mode is set is extracted from the main body of the stencil printing apparatus and inserted into the main body of another stencil printing apparatus. Even in this case, based on the authentication information recorded on the recording medium, it is possible to continue prohibiting printing using the stencil paper that has been pre-rolled on the printing drum. Can be protected. In addition, the printing drum with the confidential mode set can be replaced with another printing drum with the confidential mode not set, and printing can be performed by the stencil printing apparatus, thereby improving user convenience.

  The stencil printing apparatus includes a plurality of printing drums, and the stencil printing apparatus performs the printing with a part or all of the plurality of printing drums, wherein the confidential mode setting unit has a plurality of confidential mode settings. The printing permission unit is determined by the confidential mode setting unit by specifying which printing drum of which printing drums are used to prohibit printing using the stencil stencil sheet. When a printing instruction by the specified printing drum is accepted when the confidential mode is set, the authentication information of the user who has issued the printing instruction received by the authentication information input receiving unit is recorded on the recording medium as the specified printing drum. If the two pieces of authentication information match each other as compared with the authentication information recorded corresponding to the Even if the confidential mode is set for the printing drum and printing using the stencil-made stencil sheet wound around the printing drum is prohibited, printing is executed by another printing drum. It is possible to improve user convenience.

  At this time, the recording medium is a non-volatile memory provided integrally with each of the plurality of printing drums, and when the confidential mode setting unit receives the confidential mode setting instruction, the authentication information of the user who has set the confidential mode is displayed. The information is recorded on a recording medium provided integrally with the specified printing drum, and when the print permission unit is set to the confidential mode by the confidential mode setting unit, the identification is performed by the print instruction receiving unit. When the print instruction by the specified print drum is received, the authentication information of the user who issued the print instruction received by the authentication information input receiving unit is recorded on the recording medium provided integrally with the specified print drum. If the authentication information is compared with the authentication information and if the specified print drum is permitted to be printed, the confidential mode is set. Even when the printed drum is pulled out from the main body of the stencil printing apparatus and inserted into the main body of another stencil printing apparatus, it is wound around the printing drum based on the authentication information recorded on the recording medium. It is possible to continue prohibiting printing using the stencil-made stencil sheet, and to appropriately protect confidential information. In addition, the printing drum with the confidential mode set can be replaced with another printing drum with the confidential mode not set, and printing can be performed by the stencil printing apparatus, thereby improving user convenience.

  The stencil printing apparatus further includes a confidentiality cancellation instruction receiving unit that receives a confidentiality cancellation instruction from a user, and when the confidential mode setting unit is set to the confidential mode, the confidentiality cancellation instruction receiving unit instructs the confidentiality cancellation instruction. If the authentication information is received, the authentication information input accepting unit accepts the authentication information of the user who issued the instruction to compare with the authentication information recorded on the recording medium. If the authentication information recorded on the recording medium is to be deleted, for example, the pre-made stencil sheet is recognized as having confidential information, and its use is restricted by setting the confidential mode. However, if the information is no longer confidential information, the printing dossier on which the pre-made stencil paper that has been prohibited from printing by setting the confidential mode is wound is used. Printing by beam can also be allowed for the third party, thereby improving the convenience for the user.

1 is an overall schematic configuration diagram of an embodiment of a stencil printing apparatus according to the present invention. The block diagram which shows schematic structure of one Embodiment of the stencil printing apparatus of this invention The figure which shows the structure of the control part of one Embodiment of the stencil printing apparatus of this invention. Flowchart for explaining the secret release processing by the secret mode setting unit Flow chart for explaining the flow of processing by the print control unit

  Hereinafter, an embodiment of the stencil printing apparatus of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of the stencil printing apparatus.

  The stencil printing apparatus 1 according to the present embodiment is a stencil printing apparatus that can selectively perform one-color printing and two-color printing. As shown in FIG. 1, an image that reads an image of a document and outputs image data. In the first and second plate making units 30 and 35, and the first and second plate making units 30 and 35 for performing plate making processing on the stencil sheet M based on the image data read by the reading unit 10 and the image reading unit 10, plate making is performed. The first and second printing units 40 and 50 that print on the printing paper P using the stencil sheet M that has been made, the paper feeding unit 20 that feeds the printing paper P to the first printing unit 40, and the first printing Conveying belt unit 44 for conveying printing paper P discharged from unit 40 toward second printing unit 50, paper discharge unit 70 for discharging printed printing paper, and used stencil sheet M ' And a plate removal portion 80.

  The image reading unit 10 includes a line image sensor that photoelectrically reads image information of an original, scans the original with the line image sensor, and outputs image data.

  The first plate making unit 30 has a thermal head 31 in which a plurality of heating elements are arranged in a line, and performs a plate making process on the stencil sheet M fed from a stencil sheet roll using the thermal head 31. Is. Similarly to the first plate making unit 30, the second plate making unit 35 has a thermal head 36, and performs the plate making process on the stencil sheet M fed from the stencil sheet roll using the thermal head 36. is there.

  The first printing unit 40 presses the printing paper P and the first printing drum 41 with a predetermined press pressure against the first printing drum 41 having a cylindrical shape such as a perforated metal plate or a mesh structure. A first press roller 42 and a first stripping claw 43 for stripping the printed printing paper P from the first printing drum 41 are provided. A pre-made stencil sheet M perforated in the first plate making unit 30 is wound around and attached to the outer periphery of the first printing drum 41.

  Similar to the first printing unit 40, the second printing unit 50 is configured to press the cylindrical second printing drum 51 and the printing paper P against the second printing drum 51 with a predetermined press pressure. A press roller 52 and a second peeling claw 53 for peeling the printed printing paper P from the second printing drum 51 are provided. A pre-made stencil sheet M perforated in the second plate making unit 35 is wound around and attached to the outer periphery of the second printing drum 51.

  The paper supply unit 20 includes a paper supply base 21 on which the print paper P is placed, and a primary paper supply roller 22 that takes out the print paper P one by one from the paper supply base 21 and sends it to the secondary paper supply roller 23. The leading end of the printing paper P that is disposed downstream of the primary paper feeding roller 22 in the transport direction and is transported by the primary paper feeding roller 22 is temporarily stopped, and the printing paper P is transferred to the first printing drum at a predetermined timing. A secondary paper feed roller 23 is provided between 41 and the first press roller 42.

  The paper discharge unit 70 is a paper discharge feeding belt unit 72 that conveys the printed printing paper P to the paper discharge tray 71, and a paper discharge on which the printed printing paper P conveyed by the paper discharge feeding belt unit 72 is stacked. A stand 71 is provided.

  The plate discharging unit 80 includes a plate discharging box 81 into which the used stencil sheet M ′ peeled off from the first and second printing units 40 and 50 is sent, and a used stencil printing plate from the first and second printing units 40 and 50. A plate discharge roller 82 that peels off the base paper M ′ and feeds it into the plate discharge box 81 is provided.

  Further, as shown in FIG. 2, each of the above-described units is connected to a control unit 90, and the control unit 90 controls each unit. Although not shown in FIG. 1, the stencil printing apparatus 1 is provided with a panel unit 100 as shown in FIG. The panel unit 100 is a liquid crystal touch panel or the like, and includes a display unit that displays an operation state of the stencil printing apparatus 1, various setting states, functions that can be selected / designated, a security setting instruction, a security release instruction, and printing by a user. It functions as an input unit that receives various instructions such as instructions and also receives an input of authentication information from the user. The panel unit 100 corresponds to the confidentiality cancellation instruction receiving unit, the print instruction receiving unit, and the authentication information input receiving unit of the present invention.

  Here, the stencil printing apparatus 1 has a function of performing processing such as printing by selectively using one or both of the first and second printing drums 41 and 51, and the user can use the panel unit 100. 1, one or both of the first and second printing drums 41 and 52 can be selected to input various instructions such as a confidentiality setting instruction, a confidentiality cancellation instruction, and a printing instruction. For example, when a secret setting instruction is input only to the first printing drum 41 or when both the first and second printing drums 41 and 51 are set to the secret setting, the second printing drum 51 is set. Only the secrecy cancellation instruction can be input, or a printing instruction using only the second printing drum 51 can be input.

  In the stencil printing apparatus 1, when printing is performed using only the first printing drum 41 (one color printing), the printing paper P is first printed by the first printing unit 40, and then the printing paper. P is once transported to the second printing unit 50, but is transported to the paper discharge unit 70 as it is without further printing in the second printing unit 50 and is discharged. Similarly, when printing is performed using only the second printing drum 51, the printing paper P is first fed to the first printing unit 40, but printing is performed in the first printing unit 40. Without being conveyed to the second printing unit 50 as it is, printing is first performed by the second printing unit 50 and then discharged. On the other hand, when printing is performed using both the first and second printing drums 41 and 51 (two-color printing), the printing paper P on which the first color is printed by the first printing unit 40 is used. Second color printing is further performed by the second printing unit 50.

  Then, in the control unit 90 of the stencil printing apparatus 1, as shown in FIG. 3, a confidential mode setting unit 91 that sets a confidential mode in one or both of the first and second printing drums 41 and 51, And a print control unit 92 that controls printing by one or both of the first and second printing units 40 and 50. Although not shown in FIG. 1, the first and second printing drums 41 and 51 include a first memory 45 and a second memory corresponding to each printing drum, as shown in FIG. 55 is provided. The first and second memories 45 and 55 are non-volatile memories, and, as will be described later, the authentication information of the user who issued the security setting instruction is recorded when the security setting instruction for the print drum is received. It becomes. Further, since the first and second memories 45 and 55 are integrally provided in the corresponding printing drums, when the printing drum is extracted from or inserted into the apparatus main body, the apparatus main body together with the printing drum is provided. It will be extracted from or inserted into.

  When the security setting instruction 91 is received from the user by the panel unit 100, the confidential mode setting unit 91 applies to one or both of the first and second printing drums 41 and 51 selected in the confidential setting instruction. When the security setting instruction is received, a confidential mode is set to prohibit printing using the stencil sheet that has been made on the printing drum and the authentication information of the user who issued the security setting instruction is printed. It is recorded in a memory provided in the drum.

  Here, the user authentication information may correspond to individual users or may correspond to a predetermined user group. Information that can distinguish at least a specific user or user group from other users or user groups is sufficient.

  The authentication information of the user who issued the confidential setting instruction displays a screen on which authentication information can be input on the panel unit 100 when accepting the confidential setting instruction from the user, and the authentication information is input from the user on the screen. Can be received. Before accepting the confidential setting instruction from the user, the user authentication information is acquired as information for specifying the user who operates the apparatus, and the information can identify the user who performs the operation of the confidential setting instruction. If the information is accepted, the information may be acquired as it is as the authentication information of the user who issued the confidential setting instruction. Further, here, the case where the user authentication information is acquired based on the user input to the screen displayed on the panel unit 100 is illustrated, but for example, the apparatus main body is provided with a card reader, and the user can The user authentication information may be acquired by reading the user authentication information from the ID card possessed.

  In addition, when the confidential mode is set by the above-described processing, the confidential mode setting unit 91 receives a confidential release instruction that instructs the user to cancel the set confidential mode. The authentication information of the user who issued the confidentiality cancellation instruction received by 100 is compared with the authentication information recorded in the memory provided in the printing drum, and if the authentication information matches, the confidential mode is set. The function of canceling and deleting the authentication information recorded in the memory provided in the printing drum is provided.

  Here, the authentication information of the user who issued the confidentiality cancellation instruction is also authenticated by the panel unit 100 when receiving the confidentiality cancellation instruction from the user, as in the case of acquiring the authentication information of the user who issued the confidentiality setting instruction. A screen on which information can be input can be displayed, and the screen can be obtained by a method such as receiving input of authentication information from the user on the screen.

  Further, the confidential mode setting unit 91 outputs the confidentiality cancellation instruction when the user who has issued the confidentiality cancellation instruction is an administrator of the stencil printing apparatus, regardless of whether or not both authentication information matches. The authentication information recorded in the memory provided in the printing drum may be deleted even when the user authentication information is the administrator authentication information registered and stored in advance. .

  Here, the secret cancellation process by the secret mode setting unit 91 will be described with reference to the flowchart shown in FIG. For example, when a confidential mode is set to prohibit printing using a stencil sheet that has been pre-rolled around one of the first and second printing drums 41 and 51 (specific printing drum), When the declassification instruction is accepted by the panel unit 100 (S10), a screen on which authentication information can be input is displayed on the panel unit 100, and the declassification instruction is issued by accepting input of authentication information from the user on that screen. User authentication information is obtained. Then, the print control unit 92 compares the received user authentication information with the authentication information recorded in the memory provided in the specific print drum, and determines whether or not the two authentication information matches. (S11). Therefore, when the print control unit 92 determines that the authentication information matches, the confidential mode setting unit 91 cancels the setting of the confidential mode and is recorded in the memory provided in the specific printing drum. The authentication information is deleted (S12). On the other hand, if the print control unit 92 determines that the two pieces of authentication information do not match, the user authentication information received by the panel unit 100 by the print control unit 92 and the administrator authentication registered and stored in advance. The information is further compared, and it is determined whether or not the two pieces of authentication information match (S13). Therefore, when the print control unit 92 determines that the authentication information matches, the confidential mode setting unit 91 cancels the setting of the confidential mode and is recorded in the memory provided in the specific printing drum. The authentication information is deleted (S12). On the other hand, if the print control unit 92 determines that the authentication information does not match, the confidential mode is maintained as it is (S14), and the process ends.

  When the confidential mode is set by the confidential mode setting unit 91, the printing control unit 92 receives a printing instruction from a printing drum on which a stencil sheet that has been pre-printed is prohibited. The authentication information of the user who issued the print instruction received by the panel unit 100 is compared with the authentication information recorded in the memory provided in the printing drum, and if the authentication information matches, the printing is prohibited. Printing by the printing drum on which the stencil-made stencil sheet that has been made is wound is permitted, and if it does not match, it is left as it is. The print control unit 92 corresponds to the print permission unit of the present invention.

  Here, the flow of processing by the print control unit 92 will be described with reference to the flowchart shown in FIG. First, when a printing instruction is received from one or both of the first and second printing drums 41 and 51 by the panel unit 100 (S20), the confidential mode is set to one of the printing drums used for executing the printing. It is determined whether or not (S21). Therefore, if the confidential mode is not set for any of the printing drums used for printing, the printing operation is executed as it is (S24).

  Here, the printing operation performed in the case of two-color printing will be briefly described. First, ink is supplied to the inside of the first and second printing drums 41 and 51 by the ink supply pump, and the first and second printing drums 41 and 51 are rotationally driven. Then, the printing paper P1 is fed out from the paper feed tray 21 by the primary paper feed roller 22 at a predetermined timing in synchronization with the rotation of the first and second printing drums 41 and 51, and the secondary paper is fed at a predetermined timing. It is conveyed from the left to the right in FIG. 1 by the paper roller 23, and is supplied between the first printing drum 41 and the first press roller 42. Then, the printing paper P1 is pressed against the printing paper P1 by the first press roller 42 against the stencil stencil sheet M wound around the outer peripheral surface of the first printing drum 41, whereby the first color stencil is printed on the printing paper P1. Printing is performed.

  When the first printing drum 41 rotates by a predetermined angle and the first stencil printing on the printing paper P1 is completed, the one-color printed printing paper P2 is removed by the peeling claw 43 from the first printing drum. The one-color-printed printing paper P2 peeled off from the paper 41 is transported to the second printing section 50 by the transport belt section 44, and the second printing drum 51 and the second press at a predetermined timing. Supplied between the rollers 52.

  Then, the printing surface of the one-color printed printing paper P2 is pressed against the stencil stencil sheet M wound around the outer peripheral surface of the second printing drum 51 by the second press roller 52 to perform one-color printing. The second color stencil printing is performed on the printing surface of the finished printing paper P2. When the second printing drum 51 is rotated by a predetermined angle and the second color stencil printing on the printing surface of the one-color printed printing paper P2 is completed, the two-color printed printing paper P3 is peeled off by the nail 53. Is peeled off from the second printing drum 51, and the two-color printed printing paper P <b> 3 that has been peeled off is transported to the paper discharge tray 71 by the paper discharge feed belt 72 and stacked on the paper discharge tray 71.

  On the other hand, in step S21, when the confidential mode is set for any of the printing drums (specific printing drums) used for execution of printing, a screen for inputting authentication information is displayed on the panel unit 100. By receiving the input of authentication information from the user on the screen, the authentication information of the user who issued the print instruction is acquired. The print control unit 92 compares the received user authentication information with the authentication information recorded in the memory provided in the specific print drum, and determines whether or not the two authentication information matches. (S22). Therefore, when the print control unit 92 determines that the authentication information matches, the print operation as described above is executed as it is (S24). On the other hand, when the print control unit 92 determines that the authentication information does not match, the print control unit 92 receives the user authentication information received by the panel unit 100 and the administrator authentication registered and stored in advance. The information is further compared, and it is determined whether or not both pieces of authentication information match (S23). Therefore, if the print control unit 92 determines that the two pieces of authentication information match, the process proceeds to S24, and the printing operation is executed. If it is determined that they do not match, the printing operation is not executed. (S25), the process ends. If the printing operation is not executed due to a mismatch of authentication information, the authentication information can be entered while the authentication screen is displayed until a certain time elapses. If not, the display of the authentication screen may be stopped, and the process may return to S20 again to confirm whether there is a print instruction.

  With the above configuration, according to the stencil printing apparatus 1 of the above-described embodiment, the confidential mode setting unit 91 has set the confidential mode for the stencil sheet that has been wound around a specific printing drum. In addition, when the print control unit 92 receives a print instruction from the print drum in which the confidential mode is set, the authentication information of the user who issued the print instruction is received from the panel unit 100 and recorded in advance corresponding to the print drum. Compared with the authentication information that has been prepared, if both authentication information match, printing by the printing drum is permitted. However, if the user is authorized to dispose of the stencil sheet, the stencil sheet can be printed again using the stencil sheet. It is possible to improve the convenience for the user.

  Further, since the authentication information of the user who has authority to dispose of the stencil sheet after making the stencil is stored in a nonvolatile memory provided integrally with the printing drum, the printing drum in which the confidential mode is set is stored in the stencil printing apparatus 1. Even if it is extracted from the main body of the printer and inserted into the main body of another stencil printing machine, the pre-made stencil sheet wound around the printing drum is used based on the authentication information recorded on the recording medium. Printing can still be prohibited, and confidential information can be properly protected. In addition, the printing drum with the confidential mode set can be replaced with another printing drum with the confidential mode not set, and printing can be performed by the stencil printing apparatus 1, thereby improving user convenience.

  In the above embodiment, the case where the stencil printing apparatus 1 is provided with two printing drums has been exemplified. However, the stencil printing apparatus provided with one or three or more printing drums is also made in the same manner. Set the confidential mode for each printing drum on which stencil paper is wound, record the authentication information of the user who issued the confidential setting instruction, and then print to the printing drum for which the confidential mode is set User authentication can be performed when an instruction or a confidentiality cancellation instruction is received, and printing can be permitted only when the authentication is successful.

  In the above embodiment, the secret mode setting unit 91 sets and cancels the secret mode for each printing drum. However, the secret mode setting unit 91 sets and cancels the secret mode for the entire apparatus. It may be. At this time, when the authentication information for releasing the confidential mode is not integrally attached to the individual print drums by the non-volatile memory or the like, some of the print drums are extracted from the main body of the stencil printing apparatus 1 and separated. In such a case, a mechanism that locks the printing drum to prevent the printing drum from being removed from the apparatus main body is assumed. It is good to have.

  As this locking mechanism, for example, a notch-shaped recess provided in the printing drum and a hook that is controlled to rotate by a solenoid provided on the main body side of the stencil printing apparatus 1 are provided. By sending a control signal to the solenoid from the position, the position to be engaged with the notch-shaped recess and the position to be separated are taken, and when the hook and the recess are engaged, the printing drum is the stencil printing device. It can be designed so that it cannot be removed from one body.

DESCRIPTION OF SYMBOLS 1 Stencil printing apparatus 10 Image reading part 20 Paper feed part 30 1st plate making part 35 2nd plate making part 40 1st printing part 41 1st printing drum 42 1st press roller 44 Conveying belt part 45 1st Memory 50 Second printing unit 51 Second printing drum 52 Second press roller 55 Second memory 70 Paper discharge unit 80 Plate discharging unit 90 Control unit 91 Confidential mode setting unit 92 Print control unit 100 Panel unit

Claims (1)

In a stencil printing apparatus comprising a printing drum, and performing printing by winding a stencil sheet after making a stencil on the printing drum,
A confidential mode setting unit for setting a confidential mode for prohibiting printing using the stencil-made stencil sheet wound around the printing drum according to an instruction from the user;
A recording medium for recording authentication information of a user who has set the confidential mode in the confidential mode setting unit;
A print instruction receiving unit for receiving a print instruction from the user;
An authentication information input receiving unit that receives input of authentication information from the user;
When the confidential mode is set, if the printing instruction is received by the printing drum on which the stencil sheet that has been pre-printed prohibited by the printing instruction receiving unit is wound, the authentication information input receiving unit The authentication information of the user who issued the received printing instruction is compared with the authentication information recorded on the recording medium, and if the authentication information matches, the pre-printed stencil sheet prohibited from printing is wound. A stencil printing apparatus comprising: a print permission unit that permits printing by a mounted printing drum.

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