JP5082812B2 - Stencil printing machine - Google Patents

Description

  The present invention relates to a stencil printing apparatus, and more particularly to a stencil printing apparatus capable of performing interrupt printing.

  Conventionally, digital thermal stencil printing is known as a simple printing method. This is because a thermal head having a plurality of fine heating elements is brought into contact with a master obtained by bonding a thermoplastic resin film and a porous support, and the master is placed on a platen roller or the like while energizing the heating elements in a pulsed manner. After the punched image based on the image information is hot-melt perforated and engraved on the thermoplastic resin film of the master by conveying with a conveying means, the perforated master is wound around a porous cylindrical plate cylinder and pressed. By pressing the paper against the outer peripheral surface of the plate cylinder by pressing means such as a roller, the ink supplied to the inner peripheral surface of the plate cylinder is oozed out from the plate cylinder opening portion and the master punching portion, and this ink is transferred to the paper A printed image is obtained on a sheet.

  As a stencil printing apparatus for performing the stencil printing described above, a plate cylinder that is detachable from the apparatus main body and a storage unit that can read and write information specific to the plate cylinder are attached to and detached from the apparatus main body. It is possible to perform printing such as color change, and by displaying information on each plate cylinder on the display section, it is possible to know the contents and state of each plate cylinder, which is suitable for each plate cylinder. A stencil printing apparatus capable of setting various printing conditions and performing operation control is disclosed in, for example, “Patent Document 1”.

JP 2002-79652 A

  In an image forming apparatus such as an electrophotographic copying apparatus, a toner image corresponding to an original image is formed on a latent image carrier for each sheet without using a master, and the formed toner image is transferred to a sheet. Therefore, interrupt image formation in which the document image is changed is frequently performed. On the other hand, in a stencil printing apparatus that performs printing by forming a plate-making image on a master and bringing a sheet into pressure contact with the master, it is necessary to change the plate-making image on the master when the document image is changed. Therefore, interrupt printing is not performed.

For this reason, when a large amount of printing has been executed first, it is necessary to wait until the printing is completed or to cancel the printing in the middle of printing and then perform printing. As a result, if the previous printed material is from someone else, you will need to print it again, and if you forget the remaining number of copies or enter it incorrectly There is a problem that the work efficiency is deteriorated and the paper is excessive or insufficient.
An object of the present invention is to provide a stencil printing apparatus capable of solving the above-described problems and performing interrupt printing.

  The invention described in claim 1 is a stencil printing apparatus that performs printing by winding a master around a plate cylinder, and includes an interrupt printing key that performs interrupt printing and a storage unit that stores the status of the apparatus, and is performing a printing operation. When the interrupt print key is pressed, the printing operation being executed is interrupted, and the printing conditions such as the remaining number of prints at the time of interruption are stored in the storage means. The printing condition is called to continue the printing operation at the time of interruption.

  According to a second aspect of the present invention, in the stencil printing apparatus according to the first aspect, when the interrupt printing key is pressed during a printing operation, the printing operation being executed is interrupted and the printing condition at the time of the interruption is determined. And the original image information is stored in the storage means, and after completion of the interrupt printing, the master used for interrupt printing is discharged from the plate cylinder, and then the master is made based on the original image information stored in the storage means Is wound around the plate cylinder, the printing condition is called from the storage means, and the printing operation at the time of interruption is continued.

According to a third aspect of the present invention, in the stencil printing apparatus according to the first aspect, the plate cylinder is detachable from the apparatus main body and has a display means for displaying, and the interrupt printing key is used during a printing operation. Is pressed, the printing operation being executed is interrupted, the printing conditions at the time of interruption are stored in the storage means, and a display to the effect that the printing cylinder is replaced with a printing cylinder for interruption printing is displayed. is displayed on the display unit, after the interrupt printing is completed calls the print condition from the storage means together with displaying an indication to replace the plate cylinder for interrupt printing to the plate cylinder to said display means, the said apparatus body The printing operation at the time of interruption is continued after the plate cylinder is mounted.

  According to a fourth aspect of the present invention, the stencil printing apparatus according to the third aspect further comprises a plate cylinder identifying means for identifying a plate cylinder and a warning means for giving a warning, and the plate mounted on the apparatus main body after interrupt printing. The cylinder is identified by the plate cylinder identifying means, and if the installed plate cylinder is different from the plate cylinder, a warning is given by the warning means and the start of the printing operation is stopped.

According to a fifth aspect of the present invention, in the stencil printing apparatus according to the first aspect, the plate cylinder is detachable from the main body of the apparatus, and display means for displaying, and the first interrupt printing as the interrupt printing. And interrupt print setting means for setting the second interrupt print, and when the interrupt print key is pressed during the printing operation after the first interrupt print is set by the interrupt print setting means. Interrupts the printing operation being executed and stores the printing conditions and document image information at the time of interruption in the storage means, and after completion of interrupt printing, the master used for interrupt printing is discharged from the plate cylinder, and A master made on the basis of the document image information stored in the storage means is wound around the plate cylinder, and the printing condition is called from the storage means to mark the interruption. When the interruption print key is pressed during the printing operation after the interruption printing setting means sets the second interruption printing by continuing the operation, the printing operation being executed is interrupted and at the time of interruption. The printing condition is stored in the storage means, and further, a display to the effect that the plate cylinder is to be replaced with an interrupt printing plate cylinder is displayed on the display means. A display to the effect that the cylinder is to be replaced is displayed on the display unit, and the printing condition is called from the storage unit, and the printing operation at the time of interruption is continued after the plate cylinder is mounted on the apparatus main body. .

  According to a sixth aspect of the present invention, in the stencil printing apparatus according to any one of the first to fifth aspects, a paper feed tray on which paper to be printed is further stacked, and whether or not paper is present on the paper feed tray. Paper presence / absence detection means for detecting, and when the paper presence / absence detection means detects paper when the interrupt print key is pressed during a printing operation, the apparatus user is prompted to confirm the paper. Features.

  According to a seventh aspect of the present invention, in the stencil printing apparatus according to any one of the first to sixth aspects, a paper discharge tray on which printed paper is further stacked, and the presence or absence of paper on the paper discharge tray are determined. A paper discharge presence / absence detection means for detecting, and when the paper discharge presence / absence detection means detects paper when the interrupt print key is pressed during a printing operation, the apparatus user is prompted to confirm the paper. It is characterized by that.

  According to the present invention, interrupt printing can be performed without waiting for completion of the printing operation even when a large amount of printing operation is performed as the preceding printing, so that the printing work efficiency can be greatly improved. In addition, since the printing conditions of the preceding printing are stored in the storage means, it is possible to prevent a condition setting error such as the remaining number of prints when resuming printing.

  FIG. 1 shows a stencil printing apparatus adopting an embodiment of the present invention. Since this stencil printing apparatus has a configuration related to the double-sided printing apparatus disclosed in Japanese Patent Application Laid-Open No. 2003-200355, description of each part is omitted as much as possible.

  In FIG. 1, a stencil printing apparatus 1 includes a printing unit 2, a plate making unit 3, a paper feeding unit 4, a plate discharging unit 5, a paper discharging unit 6, an image reading unit 7, a refeed unit 9 having an auxiliary tray 8, and a switching member 10. Etc.

  The printing unit 2 disposed almost at the center of the apparatus main body 42 includes a plate cylinder 11 and a press roller 12. The plate cylinder 11 is rotatably supported by the apparatus main body 42 and is driven to rotate by a plate cylinder driving means (not shown). The plate cylinder 11 has an openable / closable clamper 13 on the outer peripheral surface thereof, and the divided pre-made master 14 made by the plate making unit 3 is wound around the outer peripheral surface of the plate cylinder 11 at the time of duplex printing. The divided master-making master 14 is formed with a first master-making image corresponding to the front image and a second master-making image corresponding to the back image, and an un-made part is formed between the master-making images. On the plate cylinder 11, the divided plate-making master 14 is wound so that the first plate-making image corresponds to the front surface area shown in FIG. 1, the second plate-making image corresponds to the same back surface area, and the non-plate making portion corresponds to the same intermediate area. Be dressed. The plate cylinder 11 is configured to be detachable from the apparatus main body 42.

  A press roller 12 is disposed below the plate cylinder 11. Both ends of the press roller 12 made of an elastic material having water repellency such as fluororesin are rotatably supported by an arm member (not shown). The arm member (not shown) is swingably supported by a swing means (not shown). Yes. The press roller 12 selectively occupies the separation position shown in FIG. 1 where the circumferential surface is separated from the plate cylinder 11 and the pressure contact position where the circumferential surface is in pressure contact with the divided plate-making master 14 on the plate cylinder 11. In the vicinity of the peripheral surface of the press roller 12, a cleaning roller 16 that performs cleaning by contacting the peripheral surface of the press roller 12 is disposed. The cleaning roller 16 is rotationally driven by a driving unit (not shown).

  In the vicinity of the right side of the press roller 12, a refeed guide member 17 is provided for transporting the surface-printed paper P sent from the refeed unit 9 along the peripheral surface of the press roller 12. A re-feeding registration roller 18 is disposed below the press roller 12 and feeds the paper P stored on the auxiliary tray 8 in contact with the peripheral surface of the press roller 12. A refeed conveyance unit 19 having an auxiliary tray 8 on the upper surface is disposed on the lower left side of the press roller 12, and a refeed positioning member 20 is provided integrally therewith. A sheet receiving plate 21 that is movable along the upper surface of the auxiliary tray 8 is disposed above the refeed conveyance unit 19. The auxiliary tray 8, the refeed guide member 17, the refeed registration roller 18, the refeed positioning member 20, the refeed conveyance unit 19, and the sheet receiving plate 21 constitute a refeed unit 9.

  On the left side of the contact position between the plate cylinder 11 and the press roller 12, the switching member 10 is disposed on the conveyance path of the paper P. The switching member 10 is rotatably supported by the apparatus main body 42 at the downstream end portion in the paper conveyance direction, and is moved by a moving means (not shown), and is indicated by a first position indicated by a solid line and a two-dot chain line in FIG. Selectively occupying the second position. The paper P that has passed between the plate cylinder 11 and the press roller 12 is guided to the paper discharge unit 6 when the switching member 10 occupies the first position, and the switching member 10 occupies the second position. Is guided to the auxiliary tray 8.

  A plate making unit 3 is disposed on the upper right side of the printing unit 2. The plate making unit 3 includes a master holding member 23 that holds a master roll obtained by winding a master 22 in a roll shape, a platen roller 24, a thermal head 25, a master cutting unit 26, a master stock unit 27, a tension roller pair 28, and a reverse roller pair. In the plate making unit 3, the divided plate-making master 14 is created.

  A sheet feeding unit 4 is disposed below the plate making unit 3. The paper feed unit 4 has a known configuration including a paper feed tray 43, a paper feed roller, a separation roller, a separation pad, a registration roller pair, and the like. A paper feed tray 43 on which a large number of sheets P can be stacked is supported by the apparatus main body 42 so as to be movable up and down, and is moved up and down by a lifting means (not shown). The paper feed tray 43 having a casing shape has a sensor 44 as a paper presence / absence detecting means for detecting the presence / absence of the paper P therein, and a pair of side fences are disposed on the upper surface thereof.

  The plate discharging unit 5 disposed on the upper left side of the printing unit 2 has a well-known configuration including an upper plate discharging member, a lower plate discharging member, a plate discharging box, a compression plate, and the like. Is peeled off from the outer peripheral surface of the plate and discarded inside the plate removal box.

  A paper discharge unit 6 is disposed below the plate discharge unit 5. The paper discharge unit 6 includes a peeling claw 31, a paper discharge transport unit 32, a paper discharge tray 33, a peeling fan 34, and the like. The front end of the peeling claw 31 is provided so as to be close to and away from the outer peripheral surface of the plate cylinder 11 by a swinging means (not shown), and the paper P from the outer peripheral surface of the plate cylinder 11 when occupied. To peel off. The paper discharge conveyance unit 32 includes a driving roller, a driven roller, an endless belt, a suction fan, and the like, and conveys the printed paper P on the upper surface of the endless belt in the arrow direction of FIG. The paper discharge tray 33 has one end fence and a pair of side fences, and the printed paper P is stacked on the upper surface thereof. The paper discharge tray 33 is provided with a sensor 45 as a paper discharge presence / absence detecting means for detecting the presence or absence of the printed paper P. The peeling fan 34 is disposed above the peeling claw 31 and is blown toward the outer peripheral surface of the plate cylinder 11 to finish the surface printing process and is peeled off from the outer peripheral surface of the plate cylinder 11 by the switching member 10. The leading edge of the sheet P to be peeled off and the sheet P peeled off from the outer peripheral surface of the plate cylinder 11 by the peeling claw 31 after finishing the back surface printing process is raised by air blowing.

  An image reading unit 7 is disposed on the upper part of the apparatus main body. The image reading unit 7 focuses a contact glass (not shown), a pressure plate (not shown) provided so as to be able to contact with and separate from the contact glass, a reflection mirror and a fluorescent lamp (not shown) that scan and read a document image, and a scanned image, respectively. The lens includes a lens (not shown), an image sensor (not shown) that processes a focused image, and the like.

  FIG. 2 shows an operation panel of the stencil printing apparatus 1. In the figure, an operation panel 15 includes a plate making start key 35, a printing start key 36, a clear / stop key 37, a numeric keypad 38, a display device 39 comprising a 7-segment LED, a display device 40 comprising an LCD as a display means, and duplex printing. A double-sided print key 41 that is pressed when performing interrupt printing, an interrupt print key 46 that is pressed when performing interrupt printing, a selection setting key 50, and the like are provided.

  FIG. 3 is a block diagram of control means used in the stencil printing apparatus 1. In the figure, the control means 30 is a microcomputer having a CPU 47, a ROM 48, a RAM 49 and the like inside, and based on the operation signals from the operation panel 15 and signals from various sensors including the sensors 44 and 45, the printing unit 2, plate making. The operations of the unit 3, the sheet feeding unit 4, the discharging plate unit 5, the sheet discharging unit 6, the image reading unit 7, the refeed unit 9, and the switching member 10 are controlled. The ROM 48 stores an operation program of the stencil printing apparatus 1, and various numerical values and information are temporarily stored in the RAM 49. The CPU 47 stores numerical values and information stored in the RAM 49 and operations called from the ROM 48. The operation of the stencil printing apparatus 1 is controlled based on the program. The RAM 49 stores printing conditions such as the remaining number of prints being executed when the interrupt printing key 46 is pressed during the printing operation. At this time, the RAM 49 functions as a storage unit.

  In the stencil printing apparatus 1 described above, when a document is set in the image reading unit 7 and the plate making start key 35 is pressed, the plate making unit 3 is operated after the plate making unit 5 is operated and the plate making operation is performed. The operation is performed, and the plate-making master is wound around the plate cylinder 11 to enter a single-sided printing standby state. Thereafter, when the print start key 36 is pressed after the number of printed sheets is set, the sheet P is continuously fed from the sheet feeding unit 4 and a one-sided printing operation is performed. When the number of printed sheets reaches the set number, the single-sided printing operation is completed, and the stencil printing apparatus 1 enters the single-sided printing standby state again.

  In addition, when the original is set in the image reading unit 7 and the duplex printing key 41 is pressed and then the plate making start key 35 is pressed, the plate discharging unit 5 is operated to perform the plate discharging operation, and then the plate making unit 3 is operated. Then, a plate-making operation is performed, and the divided plate-making master 14 is wound around the plate cylinder 11 to enter a duplex printing standby state. Thereafter, when the print start key 36 is pressed after the number of printed sheets is set, the sheet P is continuously fed from the sheet feeding unit 4 and the double-sided printing apparatus disclosed in Japanese Patent Laid-Open No. 2003-200355 is provided. Similarly, duplex printing is performed.

Interrupt printing, which is a feature of the present invention, is performed by pressing the interrupt printing key 46 during the above-described printing operation. Hereinafter, description will be given based on the flowchart shown in FIG.
When the stencil printing apparatus 1 is performing single-sided printing operation or double-sided printing operation, if the interrupt printing key 46 is pressed after various printing conditions such as the number of prints are set (ST01), the printing operation currently being printed Is interrupted (ST02) and printing conditions such as the remaining number of prints currently being printed are stored in the RAM 49 (ST03). Thereafter, interrupt printing is started (ST04), and when interrupt printing is completed (ST05), the previous printing condition stored from the RAM 49 is called (ST06), and the interrupted printing operation is resumed (ST07).

  With the above configuration, even when a large amount of printing operation is performed as preceding printing, interrupt printing can be performed without waiting for completion of the printing operation, so that the printing work efficiency can be greatly improved. Further, since the printing conditions for the preceding printing are stored in the RAM 49, it is possible to prevent a condition setting error such as the remaining number of prints when resuming printing. The interrupt printing operation will be described in detail below.

First, as a first embodiment, a case where an interrupt printing operation is performed without replacing the plate cylinder 11 will be described based on a flowchart shown in FIG.
When the stencil printing apparatus 1 is performing a single-sided printing operation or a double-sided printing operation, image information of a document used for this printing operation is temporarily stored in the RAM 49 (ST11). When various print conditions such as the number of prints are set from this state and the interrupt print key 46 is pressed (ST12), the current print operation is interrupted (ST13) and the remaining number of prints currently being printed, etc. Are stored in the RAM 49 (ST14).

  Thereafter, the plate discharging unit 5 is operated to peel off the master plate 22 of the previous plate from the outer peripheral surface of the plate cylinder 11, and the original image to be interrupt printed is made on the master 22 in the plate making unit 3, and the master 22 is made. Is wound on the plate cylinder 11 and then interrupt printing is started (ST15). When the set number of prints is consumed, the interrupt printing is completed (ST16), the previous printing conditions stored from the RAM 49 are called (ST17), and the original image information is called (ST18).

  Thereafter, the plate discharging unit 5 is operated to peel off the master 22 used for interrupt printing from the outer peripheral surface of the plate cylinder 11, and the original image of the previous plate for which printing is resumed is placed on the master 22 in the plate making unit 3. Plate making is performed (ST19), and the printing operation that has been interrupted after the master 22 that has been made is wound on the plate cylinder 11 is resumed (ST20).

  With the above-described configuration, interrupt printing can be performed even when only one plate cylinder 11 is provided, and printing can be performed without considering the problem of cost increase due to possessing a plurality of plate cylinders 11 and the problem of storage location. Work efficiency can be greatly improved.

Next, as a second embodiment, a case where the interrupt printing operation is performed by exchanging the plate cylinder 11 will be described with reference to a flowchart shown in FIG.
When the stencil printing apparatus 1 is performing single-sided printing operation or double-sided printing operation, if the interrupt printing key 46 is pressed after various printing conditions such as the number of prints are set (ST21), the printing operation currently being printed. Is interrupted (ST22), and printing conditions such as the remaining number of prints currently being printed are stored in the RAM 49 (ST23).

Thereafter, an indication that the plate cylinder 11 is to be replaced is displayed on the LCD display device 40 on the operation panel 15, and interrupt printing is started (ST25) after the plate cylinder 11 is replaced by the operator (ST24), and the interrupt printing is completed. Then (ST26) the LCD display 40 is displayed to replace the plate cylinder 11 with the original plate cylinder 11 again. When the plate cylinder 11 is replaced again by the operator and the original plate cylinder 11 is mounted on the apparatus main body 42 (ST27), the previous printing condition stored from the RAM 49 is called (ST28), and the interrupted printing operation is performed. Is resumed (ST29).
With the above-described configuration, interrupt printing can be performed without discharging the master 22 of the previous version, and the printing work efficiency can be greatly improved while preventing cost increase by the master 22.

  Next, as a third embodiment, an interrupt printing operation is performed by exchanging the plate cylinder 11, and each stencil printing apparatus 1 has an IC tag for identifying the plate cylinder 11 and warns the stencil printing apparatus 1. The control means 30 having warning means such as a buzzer and functioning as plate cylinder identification means when the plate cylinder 11 is mounted on the apparatus main body 42 identifies the IC tag of each plate cylinder 11 and is mounted. Will be described with reference to the flowchart shown in FIG. 7 when a warning is issued when it is different from the plate cylinder 11 of the previous version.

  When the stencil printing apparatus 1 is performing single-sided printing operation or double-sided printing operation, when the interrupt printing key 46 is pressed after various printing conditions such as the number of prints are set (ST31), the printing operation currently being printed. Is interrupted (ST32), and printing conditions such as the remaining number of prints currently being printed are stored in the RAM 49 (ST33). Thereafter, the IC tag information of the plate cylinder 11 to be removed from the apparatus main body 42 is stored in the RAM 49 (ST34), and an indication that the plate cylinder 11 is to be replaced is displayed on the LCD display device 40, and the plate cylinder 11 is replaced by the operator. After (ST35), interrupt printing is started (ST36), and when interrupt printing is completed (ST37), an indication that the plate cylinder 11 is replaced with the original plate cylinder 11 is displayed on the LCD display device 40 again.

  When the plate cylinder 11 is replaced again by the operator and the plate cylinder 11 is mounted on the apparatus main body 42 (ST38), the control means 30 authenticates the IC tag information of the mounted plate cylinder 11 (ST39) and is mounted. It is determined whether or not the plate cylinder 11 is the original plate cylinder 11 (ST40). If it is determined in ST40 that the original plate cylinder 11 is used, the previous printing conditions stored in the RAM 49 are called (ST41), and the interrupted printing operation is resumed (ST42). If it is determined in ST40 that it is not the original plate cylinder 11, a warning is given by the warning means (ST43) and the restart of the interrupted printing operation is stopped (ST44), and the plate cylinder 11 is displayed on the LCD display device 40. Is displayed again to replace the original plate cylinder 11.

  With the above-described configuration, it is possible to prevent the plate cylinder 11 from being erroneously attached to the apparatus main body 42 before and after execution of interrupt printing, and to prevent resumption of printing on a plate different from the printing plate. Can do.

  Next, as a fourth embodiment, a mode in which interrupt printing is performed without replacing the plate cylinder 11 shown in the first embodiment (hereinafter referred to as first interrupt printing) and a third embodiment are described. An operation in the case where it is possible to select a form in which interrupt printing is performed by replacing the plate cylinder 11 (hereinafter referred to as second interrupt printing) will be described based on a flowchart shown in FIG.

  When the stencil printing apparatus 1 is performing a single-sided printing operation or a double-sided printing operation, image information of the document used for this printing operation is temporarily stored in the RAM 49 (ST51). When various printing conditions such as the number of prints are set from this state and either the first interrupt printing or the second interrupt printing is set and the interrupt print key 46 is pressed (ST52), the current printing is in progress. The printing operation is interrupted (ST53), and the printing conditions such as the remaining number of prints currently being printed and the image information of the temporarily stored document are stored in the RAM 49 (ST54), and the plate cylinder 11 is removed from the apparatus main body 42. IC tag information is stored in the RAM 49 (ST55). In this embodiment, whether to perform the first interrupt printing or the second interrupt printing is selected and set by the selection setting key 50, and the selection setting key 50 functions as a print setting unit.

Thereafter, the control means 30 determines whether the first interrupt printing is selected or the second interrupt printing is selected (ST56). If it is determined that the first interrupt printing is selected, the plate discharging unit 5 is activated to operate the plate. The master image 22 of the previous plate was peeled off from the outer peripheral surface of the cylinder 11 and a document image to be interrupt printed was made on the master 22 in the plate making unit 3, and the master 22 thus made was wound on the plate cylinder 11. The interrupt printing is started later (ST57). When the set number of prints is consumed, interrupt printing is completed (ST58), and the previous printing conditions stored from the RAM 49 are called (ST59) and the original image information is called (ST60). Thereafter, the plate discharging unit 5 is operated to peel off the master 22 used for interrupt printing from the outer peripheral surface of the plate cylinder 11, and the original image of the previous plate for which printing is resumed is placed on the master 22 in the plate making unit 3. Plate making is performed (ST61), and the printing operation that is interrupted after the master 22 that has been subjected to platemaking is wound on the plate cylinder 11 is resumed (ST62).
When the control means 30 determines that the second interrupt printing is performed in ST56, an indication that the plate cylinder 11 is to be replaced is displayed on the LCD display device 40, and interrupt printing is performed after the plate cylinder 11 is replaced by the operator (ST63). When the interrupt printing is completed (ST64), an indication to replace the plate cylinder 11 with the original plate cylinder 11 is displayed on the LCD display device 40 again.

  When the plate cylinder 11 is exchanged again by the operator and the plate cylinder 11 is mounted on the apparatus main body 42 (ST66), the control means 30 authenticates the IC tag information of the mounted plate cylinder 11 (ST67) and is mounted. It is determined whether or not the plate cylinder 11 is the original plate cylinder 11 (ST68). If it is determined in ST68 that the original printing cylinder 11 is the original printing cylinder 11, the previous printing condition stored from the RAM 49 is called (ST69), and the interrupted printing operation is resumed (ST70). If it is determined that the original plate cylinder 11 is not the original plate cylinder 11 in ST68, a warning is issued by the warning means (ST71) and the restart of the interrupted printing operation is stopped (ST72), and the plate cylinder 11 is displayed on the LCD display device 40. Is displayed again to replace the original plate cylinder 11.

  With the above-described configuration, the first interrupt printing and the second interrupt printing can be selected. Therefore, even when only one plate cylinder 11 is provided, interrupt printing can be performed, and the plate cylinder 11 can be If there are a plurality of printers, the cost can be reduced and the work efficiency of the printing operation can be greatly increased.

  Next, as a fifth embodiment, when the interrupt print key 46 is pressed in the fourth embodiment, the operator is prompted to confirm the paper P on the paper feed tray 43 based on a signal from the sensor 44. The operation will be described based on the flowchart shown in FIG.

  The operation in the fifth embodiment is the same as that in the fourth embodiment in ST51 to ST55 and ST56 to ST72, and is different only in that the sheet on the sheet feed tray 43 is checked between ST55 and ST56. ing. When the IC tag information of the plate cylinder 11 is stored in the RAM 49 in ST55, it is determined whether or not the paper P on the paper feed tray 43 has been replaced (ST73). In this determination, it is determined that the paper P has been replaced when the signal from the sensor 44 is turned on after being turned off, and it is determined that the paper P has not been replaced when the signal is kept on. If it is determined that the paper P has been replaced, the process proceeds to ST56 assuming that the paper P used for interrupt printing is placed on the paper feed tray 43.

  If it is determined in ST73 that the paper P has not been replaced, a confirmation message such as “Please check the paper size” is displayed on the LCD display device 40 (ST74). Then, a paper size detection sensor (not shown) provided in the paper feed tray 43 determines whether or not paper replacement is necessary (ST75). If paper replacement is not necessary, the process proceeds to ST56. If the sheet needs to be replaced, the process proceeds to ST56 after the sheet P is replaced by the operator (ST76).

  With the configuration described above, when the paper P remains on the paper feed tray 43, it is possible to prompt the operator to confirm the paper P. Even if the paper P used in the previous printing and the interrupt printing is different, an error occurs. Therefore, it is possible to prevent interruption printing on paper P of a different size or type, and to further improve the work efficiency.

  Next, as a sixth embodiment, when the interrupt print key 46 is pressed in the fourth embodiment, the operator is prompted to confirm the paper P on the paper discharge tray 33 based on a signal from the sensor 45. The operation will be described based on the flowchart shown in FIG.

  The operation in the sixth embodiment is the same as that in the fourth embodiment in ST51 to ST55 and ST56 to ST72, and differs only in that the sheet on the paper discharge tray 33 is checked between ST55 and ST56. ing. When the IC tag information of the plate cylinder 11 is stored in the RAM 49 in ST55, it is determined whether or not the paper P is placed on the paper discharge tray 33 (ST77). This determination determines that the paper P is placed when the signal from the sensor 45 is on, and determines that the paper P is not placed when the signal is off. If it is determined that the paper P is not placed, only the printed paper P that has been subjected to the interrupt printing is stacked on the paper discharge tray 33, and the process proceeds to ST56.

  When it is determined in ST77 that the paper P is placed on the paper discharge tray 33, a confirmation message such as “Please remove paper from the paper discharge tray” is displayed on the LCD display device 40 (ST78). ). Then, it is determined by the operator's visual observation whether or not it is necessary to remove the paper P from the paper discharge tray 33 (ST79). After the paper P is removed by the operator (ST80), the process proceeds to ST56. If it is determined by the operator that the paper P stacked on the paper discharge tray 33 and the paper P discharged onto the paper discharge tray 33 by interrupt printing may be mixed, the paper P is removed. Without proceeding to ST56.

  With the above-described configuration, when the printed paper P remains on the paper discharge tray 33, the operator can be prompted to confirm the printed paper P, and the paper P printed by the previous printing can be interrupted. Is prevented from mixing with the printed paper P, and the working efficiency can be further improved.

  Next, as a seventh embodiment, when the interrupt print key 46 is pressed in the fourth embodiment, the operator is informed on the paper feed tray 43 and the paper discharge tray 33 based on signals from the sensors 44 and 45. The operation for prompting confirmation of the paper P will be described based on the flowchart shown in FIG.

The operation in the seventh embodiment is similar to that in the fourth embodiment in ST51 to ST55 and ST56 to ST72. Between ST55 and ST56, ST73 to ST76 and the sixth in the fifth embodiment are performed. The operation has ST77 to ST80 shown in the embodiment. In FIG. 11, ST77 to ST80 are performed after ST73 to ST76 are performed, but ST73 to ST76 may be performed after ST77 to ST80 are performed.
With the above-described configuration, it is possible to obtain all the operational effects in the first to sixth embodiments described above.

1 is a schematic front view of a stencil printing apparatus capable of double-sided printing employing an embodiment of the present invention. It is the schematic of the operation panel used for one Embodiment of this invention. It is a block diagram of the control means used for one Embodiment of this invention. It is a flowchart explaining operation | movement of this invention. It is a flowchart explaining the operation | movement in the 1st Embodiment of this invention. It is a flowchart explaining the operation | movement in the 2nd Embodiment of this invention. It is a flowchart explaining the operation | movement in the 3rd Embodiment of this invention. It is a flowchart explaining the operation | movement in the 4th Embodiment of this invention. It is a flowchart explaining the operation | movement in the 5th Embodiment of this invention. It is a flowchart explaining the operation | movement in the 6th Embodiment of this invention. It is a flowchart explaining the operation | movement in the 7th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stencil printing apparatus 11 Plate cylinder 22 Master 30 Plate cylinder identification means (control means)
33 Paper discharge tray 40 Display means (LCD display device)
42 Device main body 43 Paper feed tray 44 Paper presence / absence detection means (sensor)
45 Paper discharge presence / absence detection means (sensor)
46 Interrupt printing key 49 Storage means (RAM)
50 Print setting means (selection setting key)
P paper

Claims (7)

In a stencil printing apparatus that performs printing by winding a master around a plate cylinder,
An interrupt print key for performing interrupt printing and a storage means for storing the status of the apparatus. When the interrupt print key is pressed during a printing operation, the printing operation being executed is interrupted and A stencil printing apparatus, wherein printing conditions such as the number of remaining prints are stored in the storage means, and after completion of interrupt printing, the printing conditions are called from the storage means and the printing operation at the time of interruption is continued. In the stencil printing apparatus according to claim 1,
When the interrupt printing key is pressed during a printing operation, the printing operation being executed is interrupted and the printing conditions and document image information at the time of interruption are stored in the storage means. After the master used for interrupt printing is discharged from the cylinder, the master made on the basis of the document image information stored in the storage means is wound around the plate cylinder, and the printing conditions are called from the storage means. A stencil printing apparatus characterized by continuing a printing operation when interrupted. In the stencil printing apparatus according to claim 1,
The plate cylinder is detachable from the apparatus main body and has a display means for displaying. When the interrupt print key is pressed during the printing operation, the printing operation being executed is interrupted and In the storage means, and the display means displays on the display means that the plate cylinder is to be replaced with an interrupt printing plate cylinder. A display to the effect that the plate cylinder is to be replaced is displayed on the display means, the printing condition is called from the storage means, and the printing operation at the time of interruption is continued after the plate cylinder is mounted on the apparatus main body. Stencil printing device. In the stencil printing apparatus according to claim 3,
A plate cylinder identifying means for identifying a plate cylinder and a warning means for giving a warning, the plate cylinder mounted on the apparatus main body after interrupt printing is identified by the plate cylinder identifying means, and the installed plate cylinder is the plate A stencil printing apparatus characterized in that if it is different from the cylinder, a warning is given by the warning means and the start of the printing operation is stopped. In the stencil printing apparatus according to claim 1,
The plate cylinder is detachable from the apparatus main body, and has display means for performing display, and interrupt print setting means for setting first interrupt printing and second interrupt printing as the interrupt printing, After the first interrupt printing is set by the interrupt printing setting means, when the interrupt printing key is pressed during the printing operation, the printing operation being executed is interrupted, and the printing conditions and document at the time of the interruption are interrupted. Image information is stored in the storage means, and after completion of interrupt printing, the master used for interrupt printing is discharged from the plate cylinder, and then the master made based on the original image information stored in the storage means is It is wound around a plate cylinder, the printing condition is called from the storage means, the printing operation at the time of interruption is continued, and the second interruption printing is performed by the interruption printing setting means. After the setting, when the interrupt printing key is pressed during the printing operation, the printing operation being executed is interrupted, the printing conditions at the time of interruption are stored in the storage means, and the plate cylinder is interrupted. an indication to replace the plate cylinder for printing is displayed on the display means, after the interrupt printing is completed the stored along with displaying an indication to replace the plate cylinder for interrupt printing to said plate cylinder on said display means The stencil printing apparatus is characterized in that the printing condition is called from the means, and the printing operation at the interruption is continued after the plate cylinder is mounted on the apparatus main body. In the stencil printing apparatus according to any one of claims 1 to 5,
A paper feed tray on which paper to be printed is stacked; and paper presence / absence detecting means for detecting the presence / absence of paper on the paper feed tray, and the paper when the interrupt print key is pressed during a printing operation A stencil printing apparatus characterized by prompting the apparatus user to confirm a sheet when the presence / absence detecting means detects the sheet. In the stencil printing apparatus according to any one of claims 1 to 6,
A paper discharge tray on which printed paper is stacked; and a paper discharge presence / absence detecting means for detecting the presence / absence of paper on the paper discharge tray, and when the interrupt print key is pressed during a printing operation, A stencil printing apparatus, characterized in that when the paper discharge presence / absence detecting means detects a paper, the apparatus user is prompted to confirm the paper.

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