JP2005161739A - Stencil printing device and stencil printing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stencil printing device which can protect secrecy from leaking when stencil printing is carried out based on information input from an external input device. <P>SOLUTION: The stencil printing device 1 has a printing cylinder 10 which is attachable to/detachable from a printing device main body 9 at a predetermined location, and carries out platemaking printing operation, based on image data transmitted from the external input device 8, wherein the stencil printing device carries out the platemaking printing operation by inputting a code corresponding to a control code transmitted thereto from the external input device 8 together with the image data. Herein the stencil printing device has a confidential mode setting means 41 for setting a confidential mode for protecting the contents of the image data, and when the confidential mode is set, the printing cylinder 10 is located at a location other than the predetermined location after completion of the printing operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a technique for preventing confidential leakage in a stencil printing apparatus connected to an external input device.

  Conventionally, digital thermal stencil printing is known as a simple printing method. In this stencil printing apparatus that performs digital thermal stencil printing, when the next printing is performed after the printing is finished and the original is changed, the evacuation means is operated by pressing the stencil start key, and the used master from the plate cylinder is operated. After the detachment is performed, the plate making means is subsequently operated so that a newly made master is wound around the plate cylinder. This is because if the used master is peeled off from the plate cylinder immediately after printing is completed, the surface of the plate cylinder is left exposed to the atmosphere until a new master plate is wound before the next printing. If this state is left for a long time, the ink remaining on the surface of the plate cylinder and the opening may be transformed, and good printing may not be performed when printing the next plate. It is wound on top to prevent the surface of the plate cylinder from being exposed to the atmosphere.

  Recently, image forming data has been transmitted and received using a communication network. In this case, the image forming data is received from the transmitting side (external input device) that sends the image forming data and image forming is performed. The receiving side (image forming apparatus) to be performed is arranged at a position away from the receiving side. In this way, when information is received from an external input device and image formation is performed, convenience is improved, but the confidentiality of the image formation data is reduced because the transmission side and the reception side are separated from each other. There is a problem. Therefore, when the image formation data is transmitted from the transmission side, security information is transmitted together with the image formation data, and information corresponding to the security information transmitted at the time of output on the reception side is input, and each information matches. For example, Japanese Patent Application Laid-Open Publication No. 2004-259542 discloses a technique for outputting image formation data only to the image data.

JP 2003-115957 A

  When printing is performed based on information from an external input device, confidentiality at the time of printing is maintained by applying the technique disclosed in “Patent Document 1”. However, as described above, in the stencil printing apparatus, the master of the previous plate is still wound on the plate cylinder, so that a third party removes the plate cylinder from the stencil printing apparatus and changes the contents of the master of the previous plate. There is a problem that it can be easily confirmed and confidential information is leaked.

  In addition, in the master of the previous plate left on the plate cylinder, the ink remaining in the image portion (perforated portion) is separated into oil and moisture by contact with air and becomes thin, and the master is discharged. When printing with a new master wound around the plate cylinder, for example, if printing is performed using a new master that is halftone on the entire surface, the image of the previous plate is output as a residual image (ghost). As a result, there is a problem that confidential information is leaked.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a stencil printing apparatus capable of solving the above-described problems and preventing leakage of confidential information when printing is performed based on information from an external input device.

  The stencil printing has a plate cylinder detachable from the printing apparatus main body at a predetermined position and performs plate making printing operation based on image data connected to the external input apparatus and sent from the external input apparatus. In a stencil printing apparatus capable of performing plate-making printing operation by inputting a code corresponding to a management code sent from the external input device together with the image data, a confidentiality protecting the contents of the image data There is a confidential mode setting means for setting a mode, and when the confidential mode is set, the plate cylinder is positioned at a position other than the predetermined position after the printing operation is completed.

  The invention described in claim 2 is a plate cylinder which is detachable from the apparatus main body and winds the master on the outer peripheral surface, a plate making section which performs plate making on the master, and a plate removal which removes the master from the outer peripheral surface of the plate cylinder. A stencil printing apparatus for performing plate-making printing operation based on image data sent from the external input device connected to the external input device, and a management code sent from the external input device together with the image data In a stencil printing apparatus capable of performing plate-making printing operation by inputting a corresponding code, the stencil printing apparatus has a confidential mode setting means for setting a confidential mode for protecting the contents of the image data, and the confidential mode is set. Sometimes, after the printing operation is completed, the plate discharging unit is operated to remove the master used for printing from the outer peripheral surface of the plate cylinder, and then the plate making unit is operated to operate on the outer peripheral surface of the plate cylinder. Characterized in that for winding a plate-making of the master.

  According to a third aspect of the present invention, in the stencil printing apparatus according to the first or second aspect of the present invention, the stencil printing apparatus further includes a display unit, and whether or not to shift to the confidential mode after the printing operation is completed is displayed on the display unit. Thereafter, when shifting to the confidential mode, setting is performed by the confidential mode setting means.

  According to a fourth aspect of the present invention, there is provided a plate cylinder that is detachable from the printing apparatus main body at a predetermined position and winds the master on the outer peripheral surface, a plate making unit that performs plate making on the master, and a master from the outer peripheral surface of the plate cylinder. A stencil printing apparatus for performing plate-making printing operation based on image data sent from the external input device and connected to the external input device, and sent from the external input device together with the image data In a stencil printing apparatus capable of performing plate-making printing operation by inputting a code corresponding to a management code, a confidentiality setting either the first confidential mode or the second confidential mode for protecting the contents of the image data Mode setting means, and when the first confidential mode is set, after the printing operation is completed, the plate cylinder is positioned at a position other than the predetermined position, and the second confidential mode is set. In some cases, after the printing operation is completed, the plate discharging unit is operated to remove the master used for printing from the outer peripheral surface of the plate cylinder, and then the plate making unit is operated to wind an unprinted master on the outer peripheral surface of the plate cylinder. It is characterized by wearing.

  According to a fifth aspect of the present invention, in the stencil printing apparatus according to the fourth aspect of the present invention, the apparatus further comprises a display means, and after the completion of the printing operation, whether or not to shift to any one of the confidential modes is displayed on the display means. In the case of shifting to any one of the confidential modes, the confidential mode setting means performs the setting.

  According to a sixth aspect of the present invention, there is provided a stencil printing apparatus having a plate cylinder detachable from a printing apparatus main body at a predetermined position, image data connected to the stencil printing apparatus and printing, and a specific management code. A stencil printing system having an external input device for output to the stencil printing system capable of performing a plate making printing operation by inputting a code corresponding to the management code on the stencil printing device side, The external input device can output confidential mode information for protecting the contents of the image data by the stencil printing device, and when the confidential mode information is output, the plate cylinder is moved to a position other than the predetermined position after the printing operation is completed. It is located in.

  The invention according to claim 7 is a plate cylinder that is detachable from the apparatus main body and winds the master on the outer peripheral surface, a plate making unit that performs plate making on the master, and a plate removal that removes the master from the outer peripheral surface of the plate cylinder. A stencil printing system, and an stencil printing system comprising: an external input device that outputs image data and a specific management code connected to the stencil printing apparatus to the stencil printing apparatus; In a stencil printing system capable of performing a plate making printing operation by inputting a code corresponding to a management code on the stencil printing apparatus side, the external input device is a secret that allows the stencil printing apparatus to protect the contents of the image data. The mode information can be output, and when the confidential mode information is output, the printing plate is operated after the printing operation is completed and used for printing from the outer peripheral surface of the plate cylinder. After removal of static, it characterized thereby winding a non platemaking master wherein by actuating the perforating section on the outer peripheral surface of the plate cylinder.

  The invention according to claim 8 is detachable from the printing apparatus main body at a predetermined position, a plate cylinder on which the master is wound on the outer peripheral surface, a plate making unit for making a plate on the master, and a master from the outer peripheral surface of the plate cylinder. A stencil printing system comprising: a stencil printing apparatus having a stencil removing unit for removing image data; and an external input device that outputs image data and a specific management code connected to the stencil printing apparatus to the stencil printing apparatus. In the stencil printing system capable of performing a stencil printing operation by inputting a code corresponding to the management code on the stencil printing apparatus side, the external input device sends the contents of the image data to the stencil printing apparatus. Either the first confidential mode information or the second confidential mode information can be output, and when the first confidential mode information is output, the first confidential mode information is output after the printing operation is completed. When the plate cylinder is positioned at a position other than the predetermined position, and the second confidential mode information is output, the master used for printing is removed from the outer peripheral surface of the plate cylinder by operating the discharge section after the printing operation is completed. The plate making section is actuated later to wind an unmade master on the outer peripheral surface of the plate cylinder.

  According to the present invention, since it becomes impossible to extract the plate cylinder from the apparatus main body, it becomes impossible to extract the plate cylinder and confirm the contents of the master on the plate cylinder, and confidentiality can be maintained. Moreover, separation of the ink remaining in the perforated part of the master that requires secrecy is suppressed by peeling off the master that requires secrecy and winding a new unfinished master, thereby preventing leaks of secret due to ghost output Can do.

  FIG. 1 shows a stencil printing apparatus that employs a first embodiment of the present invention. In FIG. 1, a stencil printing apparatus 1 includes a printing unit 2, a plate making unit 3, a paper feeding unit 4, a stencil printing unit 5, a paper discharge unit 6, and an image reading unit 7. The stencil printing device 1 includes an external input device. 8 is connected.

  The printing unit 2 disposed almost at the center of the apparatus main body 9 includes a plate cylinder 10 and a press roller 11. A plate cylinder 10 having a porous support plate having a plurality of apertures in which a plurality of apertures are formed and a non-aperture portion on its outer peripheral surface is rotationally driven by a plate cylinder drive motor 12 described later. A plurality of mesh screens made of resin or metal mesh are wound on the aperture of the porous support plate, and can be opened and closed by holding the tip of the master on the non-perforated portion of the porous support plate A clamper is provided. Inside the plate cylinder 10, known ink supply means having an ink roller, a doctor roller, and the like are disposed.

  As shown in FIG. 2, on the outside of one end plate 10a constituting the plate cylinder 10, a gear 17 centering on the support shaft 13 of the plate cylinder 10 also serving as an ink supply pipe is slightly connected to the end plate 10a. It is fixed to a step portion (not shown) of the support shaft 13 with a gap. A distal end portion (not shown) of the support shaft 13 passes through the gear 17 and is supported by a side plate (not shown) of the apparatus main body 9. A dog 25 disposed near the outer peripheral edge of the plate cylinder 10 is attached to the end plate 10a. Outside the one end plate 10a and the other end plate 10b, a handle (not shown) having a substantially U-shape for carrying the plate cylinder 10 is provided on the support shaft 13 so as to straddle the plate cylinder 10 in the axial direction. It is attached. An ink pack (not shown) for replenishing ink to be supplied to the support shaft 13 is attached to a side plate (not shown) on the other end plate 10b side.

  In the vicinity of the gear 17, a gear 18 having a gear portion 18 a and a flange portion 18 b that mesh with the gear 17 and fixed to a support shaft 18 c that is rotatably supported by the apparatus main body 9 is disposed. The gear 18 is disposed such that the flange portion 18b is positioned on the end plate 10a side, and a part of the flange portion 18b is cut away. Each of the gears 17 and 18 is configured to be engageable and disengageable only when the meshing portion and the notch portion of the flange portion 18b coincide with each other, and in other states, the gear 17 is blocked by the flange portion 18b and engaged. Is configured so that it cannot be released. The plate cylinder 10 is configured such that the above-described handle (not shown) can be engaged with a rail member (not shown) of the apparatus main body 9, and the meshing portions of the gears 17 and 18 and the notch portions of the flange portion 18b coincide with each other in FIG. In the state shown, the plate cylinder 10 is extracted in the direction indicated by the white arrow in FIG. 2 so that the plate cylinder 10 can be detached from the apparatus main body 9.

  A home position sensor 26 and a confidential mode position sensor 27 are disposed on the circular path of the dog 25 that moves as the plate cylinder 10 rotates. Each of the sensors 26 and 27 is attached to the apparatus main body 9 and outputs a signal to the control means 24 described later when the dog 25 passes through the detection unit. The home position sensor 26 is disposed at a position where the dog 25 is detected at a position where the meshing portions of the gears 17 and 18 coincide with the notches of the flange portion 18b.

  A timing pulley 19 is fixed to a position between the position where the support shaft 18 c is rotatably supported by the apparatus main body 9 and the position where the gear 18 is fixed. The timing pulley 19 is attached to the apparatus main body 9. The plate cylinder drive motor 12 is connected to a pinion 20 attached to an output shaft of the plate cylinder drive motor 12 by a timing belt 21. An encoder 22 is attached to the output shaft of the plate cylinder driving motor 12, and the rotation angle of the plate cylinder driving motor 12 is detected by a pulse detection sensor 23 attached to the apparatus body 9, and the detected angle signal is shown in the figure. Is input to the control means 24 described later via a pulse counter and a comparator.

  Below the plate cylinder 10, there is disposed a press roller 11 having a pair of arm members 11a supported by a swinging means (not shown) in a swingable manner so that both ends of the support shaft are rotatably supported. The press roller 11 is configured such that the peripheral surface of the press roller 11 can be freely contacted and separated from the outer peripheral surface of the plate cylinder 10 by swinging each arm member 11a.

  A plate making unit 3 is disposed on the upper right side of the printing unit 2. The plate making unit 3 has a well-known configuration having a thermal head 15 and a platen roller 16 that perform punch plate making on the master 14, a master cutting means, a master conveying roller pair, and the like. The master 14 made by the plate making unit 3 is attached to the plate cylinder 10. After being sent, the paper is wound on the outer peripheral surface of the plate cylinder 10.

  A paper feeding unit 4 is disposed on the lower right side of the printing unit 2. The paper feed unit 4 has a known configuration including a paper feed tray on which the paper P is stacked, a paper feed roller, a separation roller pair, a registration roller pair, and the like. The paper P separated and fed from the paper feed unit 4 is a plate cylinder 10. And is sent toward the contact portion with the press roller 11.

  A plate discharging unit 5 is disposed on the upper left side of the printing unit 2. The plate removal unit 5 has a known configuration including an upper plate release member, a lower plate release member, a plate release box, a compression plate, and the like. The used master 14 is peeled off from the outer peripheral surface of the plate cylinder 10 and stored in the plate release box. To do.

  A paper discharge unit 6 is disposed on the lower left side of the printing unit 2. The paper discharge unit 6 has a known configuration including a peeling claw, a paper discharge conveying member, a paper discharge tray, and the like. The paper P on which the image is transferred in the printing unit 2 is peeled off from the outer peripheral surface of the plate cylinder 10 by the peeling claw. After that, the sheet is conveyed to a sheet discharge conveying member and discharged onto a sheet discharge tray.

  An image reading unit 7 is disposed on the upper part of the apparatus main body 9. The image reading unit 7 has a known configuration including a contact glass, a scanning unit, an imaging lens, an image sensor, an ADF unit, and the like. In the present embodiment, the external input device 8 is connected, and the stencil printing apparatus 1 performs the plate-making printing operation based on information from the external input device 8, so that the image reading unit 7 is not substantially used.

  FIG. 3 shows an operation panel of the stencil printing apparatus 1. In the figure, an operation panel 28 provided on the upper front surface of the apparatus body 9 has a plate making start key 29, a printing start key 30, a test printing key 31, a continuous key 32, a clear / stop key 33, a numeric keypad 34, on its upper surface. In addition to known configurations such as enter key 35, program key 36, mode clear key 37, printing speed setting key 38, display device 39 comprising 7 segment LEDs, display device 40 comprising LCD, etc., a confidential mode setting for setting the confidential mode A secret mode key 41 is provided as means.

  FIG. 4 is a block diagram of the control means 24 that controls the operation of the stencil printing apparatus 1. The control means 24 disposed in the apparatus main body 9 is constituted by a known microcomputer having a CPU, a ROM, a RAM and the like inside. The control means 24 detects the angle signal of the plate cylinder drive motor 12 detected by the pulse detection sensor 23 and sent via a pulse counter and a comparator (not shown), each output signal from the home position sensor 26 and the confidential mode position sensor 27, operation An operation signal from the panel 28 and various information signals from the external input device 8 are input, and the control means 24 prints the printing unit 2, the plate making unit 3, the paper feeding unit 4, the plate discharging unit 5, and the paper discharging unit 6 based on each signal. Control each of the operations.

  The external input device 8 is a personal computer having software, a driver, and the like that can cause the stencil printing apparatus 1 to perform printing. Image data to be printed on the stencil printing apparatus 1, various plate making conditions, and printing. It is configured to be able to input conditions and the like. In order to maintain confidentiality during printing, a management code is output to the stencil printing apparatus 1 together with the above-described data. The stencil printing apparatus 1 that has received the management code is configured so that the stencil printing operation can be performed only after the code corresponding to the management code is input.

Based on the above configuration, the operation of the stencil printing apparatus 1 will be described below.
The operator outputs a specific management code to the stencil printing apparatus 1 together with image data to be printed, various plate making conditions and printing conditions from the external input device 8. After the output is completed, the operation panel 28 of the stencil printing apparatus 1 is operated, and a code corresponding to the management code sent from the external input device 8 is input using the numeric keypad 34 or the like. Here, when the management code sent from the external input device 8 matches the code entered on the operation panel 28, that fact is displayed on the display device 40, and the stencil printing apparatus 1 enters the plate making standby state.

  After the stencil printing apparatus 1 enters the plate-making standby state, when the plate-making start key 29 is pressed, the plate cylinder driving motor 12 is operated to rotate the plate cylinder 10 at a low speed and the plate discharging unit 5 is operated. The used master 14 is peeled off from the outer peripheral surface of the plate cylinder 10. Thereafter, when the plate cylinder 10 rotates and the home position sensor 26 detects the dog 25, the operation of the plate cylinder drive motor 12 stops, the plate cylinder 10 is positioned at the home position, and the plate discharging operation is completed.

  After completion of the plate discharging operation, the thermal head 15 and the platen roller 16 of the plate making unit 3 are operated, and the plate making operation based on the image data sent from the external input device 8 to the master 14 is performed. At this time, the plate cylinder 10 occupies the plate feeding position shown in FIG. 1, and the clamper on the outer peripheral surface is opened. When the leading end of the master 14 made by the plate reaches the clamper, the clamper is closed, and the master 14 made by the plate making is held by the plate cylinder 10. Thereafter, the plate cylinder driving motor 12 is operated to rotate the plate cylinder 10 at a peripheral speed substantially the same as the plate making speed, and the master 14 thus made is wound around the plate cylinder 10. Then, when the master 14 is transported by a predetermined length, the master cutting means is activated to cut the master 14. The cut master 14 is wound up by the plate cylinder 10 to complete the winding operation.

  After the winding operation is completed, the sheet feeding unit 4 is operated and the plate cylinder driving motor 12 is operated, so that one sheet P is fed from the sheet feeding unit 4 and the plate cylinder 10 is rotationally driven at a low speed. The fed paper P is temporarily stopped by a pair of registration rollers, and then sent toward the contact position between the plate cylinder 10 and the press roller 11 at a timing corresponding to the plate making image of the master 14 wound around the plate cylinder 10. It is done. As the press roller 11 swings, the paper P is pressed against the master 14 on the plate cylinder 10 and an image is transferred to the surface thereof. By this pressing, the ink supplied from the inside of the plate cylinder 10 is distributed to the porous support plate and the master 14, and so-called printing is performed. After the plate P is peeled off from the plate cylinder 10 by the peeling claw, it is transported by the paper discharge conveying member and discharged onto the paper discharge tray. When the plate printing operation is completed, the stencil printing apparatus 1 is in a print standby state. It becomes a state.

  When the stencil printing apparatus 1 enters a print standby state, a printing operation is performed continuously. After completion of the printing operation, the plate cylinder 10 is rotationally driven at a set peripheral speed, which is higher than that at the time of printing, and the paper P is continuously fed from the paper feeding unit 4. The fed paper P is continuously printed by the printing unit 2, then sent to the paper discharge unit 6 and discharged onto the paper discharge tray. When printing of the preset number of prints is completed, the operation of the stencil printing apparatus 1 is stopped after the plate cylinder 10 is positioned at the home position.

  In the configuration described above, once the plate making start key 29 is pressed and the plate making operation is performed, the master 14 that has been made is kept wound around the plate cylinder 10 until the next plate making operation is performed. For this reason, when the prepressed image is a confidential image, it is necessary to prevent the contents of the image from being easily known. In such a case, the confidential mode key 41 is pressed.

  The operator presses the confidential mode key 41 after the printing operation is completed when the engraved content requires confidentiality. When the confidential mode key 41 is pressed, this signal is input to the control means 24, and the control means 24 that receives the signal operates the plate cylinder drive motor 12. When the plate cylinder 10 is rotated by the operation of the plate cylinder drive motor 12, and the dog 25 is detected by the confidential mode position sensor 27, this detection signal is sent to the control means 24. The operation of the drive motor 12 is stopped.

  By this series of operations, the plate cylinder 10 is positioned at a position shifted by the distance L in FIG. 2 from the home position, and the meshing portions with the gears 17 and 18 and the notch portions of the flange portion 18b are displaced, whereby the main body 9 of the apparatus. The plate cylinder 10 cannot be extracted from the plate. As a result, it becomes impossible to extract the plate cylinder 10 and confirm the contents of the master 14 on the plate cylinder 10, and confidentiality can be maintained. When the confidentiality key 41 is pressed, only the input of the plate making start key 29 is valid from the operation panel 28, and the input from other keys is ignored. This makes it impossible to confirm the contents of the master 14 by printing or trial printing.

  Next, a second embodiment will be described. The second embodiment is different from the first embodiment described above only in that a gear 18 that does not have the flange portion 18b is used as the stencil printing apparatus 1, and the other configurations are the same. is there.

  In the second embodiment, since the gear 18 does not have the flange portion 18b, the plate cylinder 10 can be extracted from the apparatus main body 9 even when the plate cylinder 10 is stopped at a position other than the home position. Therefore, it is necessary to maintain the confidentiality of the master 14 even if the plate cylinder 10 is extracted from the apparatus main body 9. The form is demonstrated below.

  As in the first embodiment, when the confidential mode key 41 is pressed by the operator, this signal is input to the control means 24. Upon receiving the signal, the control means 24 operates the plate cylinder driving motor 12 and the plate discharging unit 5 in the same manner as during the plate discharging operation, and peels the master 14 that requires confidentiality from the outer peripheral surface of the plate cylinder 10. The peeled master 14 is accommodated in a plate removal box of the plate removal unit 5.

  After the plate removal operation, the control means 24 operates the plate cylinder drive motor 12 and the plate making unit 3 in the same manner as the plate making operation, and winds a new master 14 around the outer peripheral surface of the plate cylinder 10. However, at this time, the operation of the thermal head 15 is stopped, and the unprinted master 14 is wound around the outer peripheral surface of the plate cylinder 10. When the winding operation is completed, the plate cylinder 10 is positioned at the home position, and the operation of the stencil printing apparatus 1 is stopped.

  As a result of this series of operations, an unprinted master 14 is wound around the outer peripheral surface of the plate cylinder 10 in place of the confidential master 14, and the contents of the master 14 on the plate cylinder 10 are extracted even if the plate cylinder 10 is extracted. It becomes impossible to confirm the confidentiality. Further, the master 14 requiring confidentiality is peeled off and a new unfinished master 14 is wound, so that separation of the ink remaining in the perforated portion of the master 14 requiring confidentiality is suppressed, and confidential leakage due to ghost output is prevented. Can be prevented. In this embodiment as well, when the confidentiality key 41 is pressed, only the input of the plate making start key 29 is valid and the input from other keys is ignored.

  In each of the above embodiments, the confidential mode is set by pressing the confidential mode key 41 at the will of the operator after the printing operation is completed. However, in this case, the secret mode should have been set, but it is not actually set, and there is a risk that the secret will be leaked. Therefore, after the printing operation is completed, a display such as “Do you want to keep confidential? Press the confidential mode key if you want to do it?” Is displayed on the display device 40 that functions as a display means. When the mode key 41 is not used, the clear / stop key 33 is pressed.

  Further, as the third embodiment, the stencil printing apparatus 1 having both the configurations of the first embodiment and the second embodiment is used, and any one of the security operations (the position of the plate cylinder 10 is determined). Alternatively, the master 14 on the plate cylinder 10 may be discarded or the unprinted master 14 may be wound). In this case, as the confidential mode setting means, a configuration in which any confidentiality operation can be selected every time the confidential mode key 41 is pressed, or a select key for selecting any confidentiality operation instead of the confidential mode key 41 is provided. It can also be set as the structure to be used. Also in this embodiment, as described above, the confidential mode can be surely set by performing a display for selecting whether or not to perform the confidentiality maintaining operation on the display device 40 after the printing operation is completed.

  In each of the above-described embodiments, the confidential mode is set on the stencil printing apparatus 1 side after printing is completed. However, the configuration as a stencil printing system that sets the confidential mode on the external output apparatus 8 side is adopted. Also good. In this case, the confidential mode setting information is output together with image data to be printed, various plate making conditions and printing conditions, and a specific management code, and is input to the control means 24. When the setting information of the confidential mode is input, the control unit 24 causes the same confidentiality holding operation as that of the above-described embodiments to be performed after the printing operation of the stencil printing apparatus 1 is completed. Of course, it is possible to select any confidentiality holding operation in the confidential mode setting information as in the third embodiment.

1 is a schematic front view of a stencil printing apparatus adopting a first embodiment of the present invention. It is the schematic of the plate cylinder drive mechanism principal part used for the 1st Embodiment of this invention. It is a figure explaining the operation panel used for the 1st Embodiment of this invention. It is a block diagram of the control means used for the 1st Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stencil printing apparatus 3 Plate making part 5 Plate discharging part 8 External input device 9 Apparatus main body 10 Plate cylinder 14 Master 40 Display means (display apparatus which consists of LCD)
41 Confidential mode setting means (confidential mode key)

Claims (8)

A stencil printing apparatus having a plate cylinder detachable from a printing apparatus main body at a predetermined position and connected to an external input device and performing a plate making printing operation based on image data sent from the external input device, wherein the image data In the stencil printing apparatus capable of performing plate-making printing operation by inputting a code corresponding to the management code sent from the external input device,
And a confidential mode setting means for setting a confidential mode for protecting the contents of the image data. When the confidential mode is set, the plate cylinder is positioned at a position other than the predetermined position after the printing operation is completed. Stencil printing device. A plate cylinder that is detachable from the apparatus main body and winds the master on the outer peripheral surface, a plate making unit that performs plate making on the master, and a plate discharging unit that removes the master from the outer peripheral surface of the plate cylinder, and external input A stencil printing apparatus that performs plate-making printing operation based on image data that is connected to the apparatus and sent from the external input device, by inputting a code corresponding to a management code sent from the external input device together with the image data In a stencil printing apparatus capable of performing plate-making printing operation,
A confidential mode setting means for setting a confidential mode for protecting the content of the image data is provided, and when the confidential mode is set, the printing plate is operated after the printing operation is completed, and printing is performed from the outer peripheral surface of the plate cylinder. A stencil printing apparatus, wherein after removing a used master, the plate making unit is operated to wind an unmade master on the outer peripheral surface of the plate cylinder. In the stencil printing apparatus according to claim 1 or 2,
A display unit that displays whether or not to shift to the confidential mode after the printing operation is completed, and then when the mode is shifted to the confidential mode, setting is performed by the confidential mode setting unit. A stencil printing device. A plate cylinder that is detachable from the printing apparatus main body at a predetermined position and winds the master on the outer peripheral surface, a plate making unit that performs plate making on the master, and a plate discharging unit that removes the master from the outer peripheral surface of the plate cylinder. A stencil printing apparatus connected to an external input apparatus and performing a plate making printing operation based on image data sent from the external input apparatus, and a code corresponding to a management code sent from the external input apparatus together with the image data In a stencil printing apparatus capable of performing plate-making printing operation by inputting,
There is a confidential mode setting means for setting either the first confidential mode or the second confidential mode for protecting the content of the image data, and when the first confidential mode is set, the printing cylinder is moved to the predetermined state after the printing operation is completed. When the second confidential mode is set at a position other than the position, the plate making part is operated after the printing operation is completed, and the master used for printing is removed from the outer peripheral surface of the plate cylinder, and then the plate making part is operated. A stencil printing apparatus, wherein an unprinted master is wound around the outer peripheral surface of the plate cylinder. In the stencil printing apparatus according to claim 4,
The display unit has a display unit, and after the printing operation is completed, whether or not to shift to any one of the confidential modes is displayed on the display unit, and then set to the one of the confidential modes by the confidential mode setting unit. Is carried out. A stencil printing apparatus. A stencil printing apparatus having a plate cylinder detachable from the printing apparatus main body at a predetermined position, and an external input device for outputting image data and a specific management code connected to the stencil printing apparatus to the stencil printing apparatus. In a stencil printing system capable of performing a plate-making printing operation by inputting a code corresponding to the management code on the stencil printing apparatus side,
The external input device can output confidential mode information for protecting the contents of the image data by the stencil printing device, and when the confidential mode information is output, the plate cylinder is moved to a position other than the predetermined position after the printing operation is completed. A stencil printing system, characterized in that the stencil printing system is located on a stencil. A stencil printing apparatus having a plate cylinder that is detachable from the apparatus main body and winds the master on the outer peripheral surface, a plate making unit that performs plate making on the master, and a plate discharging unit that removes the master from the outer peripheral surface of the plate cylinder; A stencil printing system having image data connected to the stencil printing apparatus and an external input device for outputting a specific management code to the stencil printing apparatus, wherein the code corresponding to the management code is In a stencil printing system capable of performing plate making printing operation by inputting on the stencil printing apparatus side,
The external input device can output confidential mode information that protects the contents of the image data to the stencil printing device. When the confidential mode information is output, the plate cylinder is operated after the printing operation is completed to operate the plate cylinder. After the master used for printing is removed from the outer peripheral surface of the stencil, the stencil printing system is characterized in that the plate making unit is operated to wind the unmade master on the outer peripheral surface of the plate cylinder. A plate cylinder that is detachable from the printing apparatus main body at a predetermined position and winds the master on the outer peripheral surface; a plate making unit that performs plate making on the master; and a plate discharging unit that removes the master from the outer peripheral surface of the plate cylinder A stencil printing system comprising: a stencil printing apparatus; and an external input device that outputs image data and a specific management code connected to the stencil printing apparatus to the stencil printing apparatus, and corresponds to the management code In the stencil printing system capable of performing the plate making printing operation by inputting the code made on the stencil printing apparatus side,
The external input device can output either the first confidential mode information or the second confidential mode information that causes the stencil printing apparatus to protect the contents of the image data. When the first confidential mode information is output, a printing operation is performed. After completion, the plate cylinder is positioned at a position other than the predetermined position, and when the second confidential mode information is output, the master is used for printing from the outer peripheral surface of the plate cylinder by operating the discharge section after the printing operation is completed. The stencil printing system is characterized by operating the plate making unit after removing the stencil and winding an unprinted master on the outer peripheral surface of the plate cylinder.

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