JP5996919B2 - Printing system - Google Patents

Description

  The present invention relates to a printing system including a printing apparatus and a pre-processing apparatus or a post-processing apparatus connected to the printing apparatus, and more particularly to a method for detecting a jam position of printing paper.

  Conventionally, various printing systems in which a pre-processing device and a post-processing device are connected to a printing device that performs printing processing have been proposed.

  Examples of the pre-processing device connected to the printing apparatus include a large-volume paper feeding apparatus that can supply a large amount of printing paper to the printing apparatus. Further, as a post-processing device connected to the printing device, for example, a bookbinding device that creates case binding using printing paper that has been subjected to printing processing in the printing device, or an envelope that uses printing paper that has been subjected to printing processing And a sealing device that creates a sealed letter by enclosing and sealing the inner paper in the envelope, and a stapling device that performs a stapling process on a plurality of printing paper bundles that have undergone a printing process. .

  Here, in a printing system including the above-described apparatus, for example, when a printing paper jam occurs during the printing process of the printing apparatus or the cover of the casing of the printing apparatus is opened, the printing apparatus The printing paper may stay in front of the entrance of the printing paper (range R1 shown in FIG. 1). Specifically, a relatively long print sheet stays in a bellows shape due to a jam, or a relatively short print sheet is fed from a pre-processing device and then transported to a transport roller or the like in the printing device. May stay without.

  When the printing paper stays as described above, for example, when the printing paper stays after being sent out from the preprocessing device, the preprocessing device determines that the printing paper has been sent out normally. .

  On the other hand, if the printing device cannot detect the printing paper for a predetermined elapsed time or more after the print start instruction is input, the printing device determines that there is a high possibility that the printing paper has jammed. A display prompting the user to release the jam is performed.

JP 2008-145694 A

  However, depending on the mechanical configuration of the printing apparatus, it may be difficult to remove the printing paper staying in the range R1 shown in FIG. 1 from the printing apparatus side, and it may be easier to remove the printing paper from the preprocessing apparatus side. is there. In such a case, it is desirable to display to the user so as to prompt the user to clear the jam on the preprocessing device side.

  However, conventionally, jam detection of printing paper is controlled by separate microcomputers in the preprocessing device and the printing device, and as described above, it is determined that the printing paper has been sent out normally on the preprocessing device side. In other words, if it is determined that the jam has not occurred on the preprocessing device side, it has not been possible to display to the user to prompt the user to release the jam on the preprocessing device side.

  If the printing paper stays in the range R1 shown in FIG. 1, the printing device may detect that the printing paper has not been reached and display the jam position of the pre-processing device. There is a problem that the apparatus cannot recognize the jam release in the pre-processing apparatus and cannot release the display of the jam position.

  Similarly, when the printing paper stays at the outlet of the printing apparatus (range R2 shown in FIG. 1), similarly, it is difficult to remove the printing paper from the post-processing apparatus side, and the printing paper is loaded from the printing apparatus side. It may be easy to remove. In such a case as well, it is desirable to display to the user so as to prompt the user to clear the jam on the printing apparatus side.

  However, as described above, the jam detection of the printing paper is controlled by separate microcomputers in the printing device and the post-processing device, so when the printing device determines that the printing paper has been sent out normally, That is, when it is determined that a jam has not occurred on the printing apparatus side, a display that prompts the user to release the jam on the printing apparatus side cannot be performed.

  Japanese Patent Application Laid-Open No. 2004-151858 discloses that when a jam occurs in a printing paper in the printing apparatus, the position of the jam is displayed. There is no proposal for detecting or displaying a jam position when the printing paper stays.

  SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a printing system capable of prompting a jam release from the preprocessing device side when printing paper stays in front of the entrance of the printing device.

  It is another object of the present invention to provide a printing system that can prompt the user to release a jam when the printing paper stays at the outlet of the printing apparatus.

  A printing system according to the present invention includes a printing apparatus that performs printing processing on printing paper, and a preprocessing device that is connected to the printing apparatus on the upstream side in the conveyance direction of the printing paper and that sends the printing paper to the printing apparatus. A virtual jam information output unit for outputting virtual jam information to the preprocessing device when the printing device detects that all or part of the printing paper sent from the preprocessing device has not reached the printing device. A virtual jam recognition unit that recognizes virtual jam occurrence when the preprocessing device accepts virtual jam information and the preprocessing device does not detect jamming of printing paper that has not reached the printing device. It is characterized by being.

  In the printing system of the present invention, the preprocessing device may include a jam removal detection unit that detects the release of a virtual jam and outputs jam release information to the printing device.

  In addition, the printing apparatus is provided with a jam detection position display unit that displays a predetermined jam detection position in the pre-processing device when it is detected that the printing paper has not reached, and the jam detection position display unit is configured to cancel the jam. When the information is received, the display of the predetermined jam detection position in the preprocessing device can be canceled.

  Further, the virtual jam information output unit outputs the jam detection position information in the pre-processing device preset as the virtual jam information to the pre-processing device, the virtual jam recognition unit acquires the jam detection position information, When the occurrence of a specific jam is recognized, the jam detection position information is output to the printing apparatus, and the jam detection position display unit is based on the jam detection position information output from the virtual jam recognition unit. The jam detection position can be displayed.

  A printing system of the present invention includes a printing apparatus that performs printing processing on printing paper, and a post-processing device that is connected to the printing apparatus on the downstream side in the conveyance direction of the printing paper and that receives printing paper sent from the printing apparatus. In the printing system, when the post-processing device detects that all or part of the printing paper sent from the printing device has not reached the post-processing device, virtual jam information is output to the printing device. A virtual jam recognition unit that includes an output unit and recognizes, as a virtual jam occurrence, when the printing apparatus accepts virtual jam information and the printing apparatus does not detect a jam of the printing paper that has not reached the post-processing apparatus; It is characterized by being provided.

  In the printing system of the present invention, the printing apparatus may include a jam detection position display unit that displays a preset jam detection position in the printing apparatus when a virtual jam is recognized.

  According to the printing system of the present invention, when it is detected that all or part of the printing paper sent from the preprocessing device has not reached the printing device, virtual jam information is output from the printing device to the preprocessing device. Since the pre-processing device accepts the virtual jam information and the pre-processing device recognizes that the jam of the printing paper that has not reached the printing device is detected as a virtual jam occurrence, the pre-processing device Based on the recognition of the occurrence of a virtual jam in the apparatus, it is possible to perform a display that prompts the user to release the jam from the preprocessing apparatus side, and the user views the display from the preprocessing apparatus side. Printing paper can be easily removed.

  In the printing system of the present invention, when the pre-processing device detects the above-described cancellation of the virtual jam and outputs the jam clearing information from the pre-processing device to the printing device, When the printing paper is removed from the processing device side and the jam is released, the jam release can be recognized on the printing device side, and the display of the jam detection position can be released accordingly.

  According to the printing system of the present invention, when it is detected that all or part of the printing paper sent from the printing apparatus has not reached the post-processing apparatus, virtual jam information is output from the post-processing apparatus to the printing apparatus. Since the printing device accepts virtual jam information and the printing device does not detect the jam of the printing paper that has not reached the post-processing device, it is recognized as a virtual jam occurrence. Based on the recognition of the occurrence of a virtual jam, it is possible to perform a display that prompts the user to release the jam from the printing apparatus side, and the user can easily print paper from the printing apparatus side by viewing this display. Can be removed.

1 is an overall schematic configuration diagram of an embodiment of a printing system of the present invention. FIG. 1 is a block diagram showing a schematic configuration of a printing apparatus, a large quantity paper feeding apparatus, and an offset paper ejection apparatus in the printing system shown in FIG. The flowchart for demonstrating the effect | action of one Embodiment of the printing system of this invention. The block diagram which shows schematic structure of the printing apparatus of another embodiment of the printing system of this invention, a mass feeding apparatus, and an offset discharge apparatus. The flowchart for demonstrating the effect | action of other embodiment of the printing system of this invention.

  Hereinafter, an embodiment of a printing system of the present invention will be described in detail with reference to the drawings. The printing system of the present embodiment is characterized by a method for detecting a jam position of a printing paper. First, the overall schematic configuration will be described. FIG. 1 is an overall schematic configuration diagram of a printing system 1 according to the present embodiment.

  As shown in FIG. 1, the printing system 1 according to the present embodiment is connected to a printing apparatus 20 that performs printing processing on printing paper, and to the printing apparatus 20 on the upstream side in the conveyance direction of the printing paper, and prints on the printing apparatus 20. A large amount of paper feeding device 10 that feeds out paper, and an offset paper discharge device that is connected to the downstream side of the printing device 20 in the conveyance direction of the printing paper, and stacks the printing paper discharged from the printing device 20 with an offset. 30.

  The printing apparatus 20 includes an ink head unit 21 that ejects ink onto printing paper. The ink head unit 21 performs printing processing by ejecting ink onto printing paper based on the input image data. The ink head unit 21 of the present embodiment includes a plurality of line-type ink heads that eject ink of each color of black K, cyan C, magenta M, and yellow Y.

  In addition, the printing apparatus 20 includes a circulation conveyance path 22 that conveys the printing paper that has been sent out from the mass feeding apparatus 10 and received in the printing apparatus 20. The circulation conveyance path 22 conveys the printing paper fed from the mass paper feeding device 10 from the upstream side to the downstream side of the ink head unit 21.

  In addition, the circulation conveyance path 22 passes the printing paper subjected to the printing process in the ink head unit 21 as it is to the communication conveyance path 23 in the case of single-sided printing, and in the case of double-sided printing, The printing paper on which printing processing has been completed is conveyed to the reversing unit 22a, and the single-sided printed paper that has been reversed upside down in the reversing unit 22a is conveyed again from the upstream side to the downstream side of the ink head unit 21, and then the ink head unit 21 The double-sided printed paper that has been subjected to the printing process again is transferred to the communication transport path 23. The printed printing paper received by the communication conveyance path 23 is sent to the offset paper discharge device 30.

  In addition, a registration sensor 24 that detects a print sheet, a conveyance path sheet detection sensor 25, and an exit sheet detection sensor 26 are provided on the conveyance path of the circulation conveyance path 22 and the communication conveyance path 23 of the printing apparatus 20. These sensors are composed of optical sensors, for example, but other known sensors may be used.

  The registration sensor 24 is provided in the vicinity of the printing paper receiving port of the printing apparatus 20, and first detects the printing paper sent out from the mass feeding device 10 and received in the printing apparatus 20. The registration sensor 24 detects whether or not the printing paper sent out from the large-volume paper feeding device 10 has normally reached the printing device 20 or detects a jamming of the printing paper near the printing paper receiving port. It is also used for controlling the timing of feeding the printing paper to the ink head unit 21.

  The conveyance path paper detection sensor 25 is provided in the vicinity of the upstream side of the ink head unit 21, detects a jam of the printing paper on the circulation conveyance path 22 near the ink head unit 21, and controls the conveyance speed of the printing paper. It is used for the purpose.

  The exit paper detection sensor 26 is provided in the vicinity of the exit of the printing paper of the printing device 20, detects whether the printed printing paper is normally sent out from the printing device 20, or prints the printing paper of the printing device 20. This is used for detecting a jam of the printing paper in the vicinity of the exit of the paper.

  In addition, the printing apparatus 20 includes a touch panel 27 that displays a jam detection position and a predetermined setting input screen and receives a predetermined setting input by a user. The touch panel 27 in the present embodiment displays a schematic diagram showing a schematic configuration of the printing system 1 as shown in FIG. 1, and a jam as shown in FIG. 1 is displayed on the schematic diagram of the printing system 1. Marks “A”, “B”, “C”, “N” and “R” indicating the detection position are displayed. The display of the marks “A”, “B”, “C”, “N”, and “R” is controlled by the jam detection position display control unit 43 described later. Will be described in detail later.

  The mass feeding device 10 is a preprocessing device that can load and supply a larger amount of printing paper than a paper feeding tray (not shown) provided in the printing device 20. Then, the printing papers stacked on the loading platform 11 of the mass paper feeding device 10 are sequentially fed out by a pickup roller or the like and sent to the printing device 20.

  In the large-volume paper feeder 10, a paper detection sensor 12 and an exit paper detection sensor 13 for detecting printing paper are provided.

  The paper detection sensor 12 is provided in the vicinity of the loading table 11 and is used for detecting a jam of the printing paper in the vicinity of the loading table 11 and for controlling the timing of feeding the printing paper to the printing apparatus 20. It is also used for.

  Further, the exit sheet detection sensor 13 is provided in the vicinity of the exit of the printing paper of the large-volume paper feeding device 10 and detects whether the printing paper is normally sent out from the large-volume paper feeding device 10 or the large-volume paper feeding. This is used for detecting a jam of the printing paper in the vicinity of the printing paper outlet of the apparatus 10.

  The offset paper discharge device 30 receives the printed printing paper P discharged from the printing device 20 and stacks the received printing paper P with an offset. The offset paper discharge device 30 includes a paper discharge tray 31 on which printed printing paper P is stacked, and an offset guide plate 32 and an end fence plate 33 that move on the paper discharge tray 31 in the conveyance direction of the print paper.

  The paper discharge table 31 moves in the vertical direction according to the stacking amount of the printed printing paper P. As the paper discharge table 31 moves downward, the offset guide plate 32 and the end fence plate 33 print. By moving in the paper transport direction, the printing paper with an offset is dropped and stacked on the paper discharge tray 31.

  Further, the offset paper discharge device 30 is provided with a paper detection sensor 34 for detecting the printed printing paper P. The paper detection sensor 34 is provided in the vicinity of the print paper receiving port of the offset paper discharge device 30, and first detects the print paper sent from the printing device 20 and received in the offset paper discharge device 30. is there. The paper detection sensor 34 detects whether or not the printing paper sent out from the printing apparatus 20 has normally reached the offset paper discharge apparatus 30 and detects a printing paper jam in the vicinity of the printing paper receiving port. It is used.

  The above is the description of the overall schematic configuration of the printing system 1 of the present embodiment.

  Next, the control system of the printing system 1 of the present embodiment will be described with reference to FIG. Note that the printing system 1 of the present embodiment is characterized by the detection method of the jam position of the printing paper as described above, and therefore, the control system related thereto will be mainly described.

  As shown in FIG. 2, the printing apparatus 20 includes a control unit 40 that controls the entire printing apparatus 20. The control unit 40 includes a jam detection unit 41, a jam release detection unit 42, a jam detection position display control unit 43, and a virtual jam information output unit 44.

  The jam detection unit 41 detects a jam of the printing paper in the printing device 20 based on the paper detection signals of the registration sensor 24, the conveyance path paper detection sensor 25, and the exit paper detection sensor 26 provided in the printing device 20. It detects and outputs the position information of the jam occurrence to the jam detection position display control unit 43. Specifically, the jam detection unit 41 detects the ink in the printing device 20 when the printing paper P is detected for a predetermined elapsed time or more by the registration sensor 24 or the conveyance path paper detection sensor 25 of the printing device 20, for example. Assuming that a jam of the printing paper P has occurred upstream of the head unit 21, the jam detection position information of the mark “B” shown in FIG. 1 is output to the jam detection position display control unit 43. The jam detection position information includes information indicating the position and information indicating that the jam is detected at the position. Specifically, the information indicating that the jam is detected. Flag “1” is included. Then, the jam detection position display control unit 43 displays the mark “B” shown in FIG. 1 on the touch panel 27 based on the jam detection position information described above.

  Further, the jam detecting unit 41 jams the printing paper P downstream of the ink head unit 21 in the printing apparatus 20 when the printing paper P is detected by the exit paper detection sensor 26 for a predetermined elapsed time or more. 1 is output to the jam detection position display control unit 43. The jam detection position information of the mark “C” shown in FIG. At this time, the jam detection position display control unit 43 displays the mark “C” shown in FIG.

  The jam release detection unit 42 detects that the jam of the printing paper in the printing apparatus 20 has been released based on the paper detection signals of the registration sensor 24, the conveyance path paper detection sensor 25, and the exit paper detection sensor 26. is there. Specifically, the jam release detection unit 42 confirms that the printing paper is not detected by the registration sensor 24 and the conveyance path paper detection sensor 25, so that the jam at the position of the mark “B” shown in FIG. It detects that it has been released, and outputs the jam release information to the jam detection position display control unit 43. The jam release information includes information indicating the position and information indicating that the jam at the position has been released. Specifically, the flag “ 0 ”is included. Then, the jam detection position display control unit 43 hides the mark “B” displayed on the touch panel 27 according to the jam release information.

  Further, the jam clearing detection unit 42 confirms that the printing paper is not detected by the transport path paper detection sensor 25 and the exit paper detection sensor 26, thereby clearing the jam at the position of the mark “C” shown in FIG. This is detected, and the jam release information is output to the jam detection position display control unit 43. Then, the jam detection position display control unit 43 hides the mark “C” displayed on the touch panel 27 in accordance with the jam release information.

  Further, the jam detection position display control unit 43 displays the jam occurrence position in the printing apparatus 20 on the touch panel 27 as described above, and also causes the jam occurrence position in the large-volume paper feeding apparatus 10 and the offset paper discharge apparatus 30. Is also displayed on the touch panel 27.

  Specifically, the jam detection position display control unit 43 is based on the jam detection position information output from the jam detection unit 15 and the virtual jam recognition unit 16 (to be described later) of the large-volume sheet feeding device 10. N ”or“ R ”is displayed on the touch panel 27. Further, the jam detection position display control unit 43 does not display the marks “N” and “R” displayed on the touch panel 27 based on the jam release information output from the jam release detection unit 17 of the large-volume sheet feeding device 10. It is what. The jam detection in the jam detection unit 15 and the virtual jam recognition in the virtual jam recognition unit 16 will be described in detail later.

  Further, the jam detection position display control unit 43 displays the mark “A” shown in FIG. 1 on the touch panel 27 based on jam detection position information output from a jam detection unit 51 described later of the offset paper discharge device 30. It is. Further, the jam detection position display control unit 43 hides the mark “A” displayed on the touch panel 27 based on the jam release information output from the jam release detection unit 52 of the offset paper discharge device 30. is there. The jam detection in the jam detection unit 51 of the offset paper discharge device 30 will be described in detail later.

  The virtual jam information output unit 44 is configured so that all or part of the printing paper P sent out from the large-volume paper feeding device 10 is based on the detection signal of the printing paper P by the registration sensor 24 or the conveyance path paper detection sensor 25. When the printing paper is not reached, virtual jam information is output to a virtual jam recognition unit 16 (to be described later) of the large-volume sheet feeding device 10. Specifically, the virtual jam information output unit 44 of the present embodiment performs the entire print sheet P when the registration sensor 24 does not detect the print sheet P for a predetermined elapsed time after receiving a print start instruction from the user. Has not reached the printing apparatus 20, and the printing paper P is detected by the registration sensor 24. Thereafter, the printing paper P is not detected by the conveyance path paper detection sensor 25 for a predetermined elapsed time. In this case, it is detected that a part of the printing paper P has not been reached.

  When the virtual jam information output unit 44 in the present embodiment detects that the printing paper P has not been reached as described above, the virtual jam information output unit 44 virtually uses the jam detection position information of the mark “R” illustrated in FIG. 1 as the virtual jam information. This is output to the jam recognition unit 16.

Next, the control system of the large volume paper feeder 10 will be described. As shown in FIG. 2, the mass feeding device 10 includes a control unit 14 that controls the entire mass feeding device 10. The control unit 14 includes a jam detection unit 15, a virtual jam recognition unit 16, and a jam release detection unit 17. The jam detection unit 15 includes a paper detection sensor 12 and an exit provided in the mass feeding device 10. Based on the paper detection signal of the paper detection sensor 13, the occurrence of a jam of the printing paper in the large-volume paper feeder 10 is detected, and the position information of the jam occurrence is output to the jam detection position display controller 43 of the printing device 20. Is. Specifically, the jam detection unit 15 generates a jam in the vicinity of the paper detection sensor 12, for example, when the print paper P is detected for a predetermined elapsed time or longer by the paper detection sensor 12 of the large-volume paper feeder 10. As a result, the jam detection position information of the mark “N” shown in FIG. 1 is output to the jam detection position display control unit 43. At this time, the jam detection position display control unit 43 displays the mark “N” shown in FIG.

  The jam detection unit 15 detects that a jam has occurred in the vicinity of the exit paper detection sensor 13 when the print paper P is detected by the exit paper detection sensor 13 of the large-volume paper feeder 10 for a predetermined elapsed time or more. As an example, the jam detection position information of the mark “R” shown in FIG. At this time, the jam detection position display control unit 43 displays the mark “R” shown in FIG.

  The virtual jam recognition unit 16 receives virtual jam information output from the virtual jam information output unit 44 of the printing apparatus 20 and recognizes a case where no jam is detected by the jam detection unit 15 as a virtual jam occurrence. It is. That is, when the jam of the printing paper P occurs between the exit paper detection sensor 13 of the mass paper feeding device 10 and the registration sensor 24 of the printing device 20, that is, the range R1 shown in FIG. This is detected as a virtual jam.

  When the virtual jam recognition unit 16 recognizes the occurrence of a virtual jam, the virtual jam recognition unit 16 outputs the jam detection position information “R” shown in FIG. 1 received as virtual jam information to the jam detection position display control unit 43. At this time, the jam detection position display control unit 43 displays the mark “R” shown in FIG.

  The jam release detection unit 17 detects that the jam of the printing paper in the large-volume paper feeder 10 has been released based on the paper detection signals of the paper detection sensor 12 and the exit paper detection sensor 13. Specifically, the jam release detecting unit 17 detects that the jam at the position of the mark “N” shown in FIG. 1 has been released by confirming that the printing paper is not detected by the paper detection sensor 12. Then, the jam release information is output to the jam detection position display control unit 43. Then, the jam detection position display control unit 43 hides the mark “N” displayed on the touch panel 27 in accordance with the jam release information.

  Further, the jam release detection unit 17 detects that the jam at the position of the mark “R” shown in FIG. 1 has been released by confirming that the exit paper detection sensor 13 has not detected the print paper, The jam release information is output to the jam detection position display control unit 43. Then, the jam detection position display control unit 43 hides the mark “R” displayed on the touch panel 27 in accordance with the jam release information.

  Further, the jam release detection unit 17 detects that the above-described virtual jam has been released by detecting that a cover door (not shown) provided in the housing of the mass paper feeder 10 is opened and closed. It is to detect. Then, when the virtual jam is released, the jam release detection unit 17 outputs the jam release information to the jam detection position display control unit 43. Then, the jam detection position display control unit 43 hides the mark “R” displayed on the touch panel 27 in accordance with the jam release information.

Next, a control system of the offset paper discharge device 30 will be described. As shown in FIG. 2, the offset paper discharge device 30 includes a control unit 50 that controls the entire offset paper discharge device 30. The control unit 50 includes a jam detection unit 51 and a jam release detection unit 52. The jam detection unit 51 is based on a paper detection signal of a paper detection sensor 34 provided in the offset paper discharge device 30. The occurrence of a jam in the printing paper in the offset paper discharge device 30 is detected, and the detected position information of the jam occurrence is output to the jam detection position display control unit 43 of the printing device 20. Specifically, the jam detection unit 51 generates a jam in the vicinity of the paper detection sensor 34, for example, when the print paper P is detected for a predetermined elapsed time or longer by the paper detection sensor 34 of the offset paper discharge device 30. As a result, the detected position information of the mark “A” shown in FIG. 1 is output to the jam detected position display control unit 43. At this time, the jam detection position display control unit 43 displays the mark “A” shown in FIG.

  The jam release detection unit 51 detects that the jam of the printing paper in the offset paper discharge device 30 has been released based on the paper detection signal of the paper detection sensor 34. Specifically, the jam release detection unit 51 detects that the jam at the position of the mark “A” shown in FIG. 1 has been released by confirming that the printing paper is not detected by the paper detection sensor 34. Then, the jam release information is output to the jam detection position display control unit 43. Then, the jam detection position display control unit 43 hides the mark “A” displayed on the touch panel 27 in accordance with the jam release information.

  Next, the operation of the printing system 1 of the present embodiment will be described with reference to the flowchart shown in FIG. Note that the printing system 1 of the present embodiment is characterized by the above-described detection method of the virtual jam occurrence, and will be described below mainly.

  First, when a print paper jam occurs in the range R1 shown in FIG. 1 during the conveyance of the print paper from the large volume paper feeder 10 to the printing device 20, printing is performed by the virtual jam information output unit 44 of the printing device 20. It is detected that all or part of the paper P has not been reached (S10).

  When the virtual jam information output unit 44 detects that the print paper P has not been reached, the virtual jam information output unit 44 uses the jam detection position information of the mark “R” illustrated in FIG. Information is output to the virtual jam recognition unit 16 of the large-volume paper feeder 10 (S12).

  The virtual jam recognition unit 16 generates a virtual jam when no jam is detected by the jam detection unit 15 of the large-volume sheet feeder 10 and the jam detection position information of the mark “R” is acquired. (S14).

  When the virtual jam recognition unit 16 recognizes the occurrence of a virtual jam, the virtual jam recognition unit 16 outputs the jam detection position information of the input mark “R” to the jam detection position display control unit 43 of the printing apparatus 20 (S16).

  Then, the jam detection position display control unit 43 of the printing apparatus 20 displays the mark “R” shown in FIG. 1 on the touch panel 27 based on the input jam detection position information (S18).

  Next, the user who sees the display of the mark “R” on the touch panel 27 opens the cover door of the housing of the large-volume paper feeder 10 and releases the jam of the printing paper P in the range R1 shown in FIG. 1 (S20). When the cover door is closed by the user after the jam of the printing paper P is released, the opening / closing of the cover door is detected by the jam release detection unit 17, and the jam release detection unit 17 sends the jam release information to the jam of the printing device 20. It outputs to the detection position display control part 43 (S22).

  The jam detection position display control unit 43 of the printing apparatus 20 hides the display of the mark “R” on the touch panel 27 according to the input jam release information (S24).

  According to the printing system 1 of the above embodiment, when the printing paper P stays in front of the entrance of the printing apparatus 20 (range R1 shown in FIG. 1), the entire printing paper P delivered from the large-volume paper feeding apparatus 10 or one of the printing papers P is sent. In response to the detection, the virtual jam information is output from the printing device 20 to the mass feeding device 10, and the mass feeding device 10 accepts the virtual jam information, In addition, since the case where the jam of the printing paper P that has not reached the printing apparatus 20 is not detected in the printing apparatus 20 in the mass feeding apparatus 10 is recognized as a virtual jam occurrence, the virtual jam in the mass feeding apparatus 10 is recognized. Based on the recognition of the occurrence, it is possible to perform a display that prompts the user to release the jam from the side of the large-volume sheet feeding device 10, and the user sees this display to thereby display the large-volume sheet feeding apparatus 1. It is possible to easily remove the printed paper from the side.

  In the above description, the operation of displaying the jam detection position of the mark “R” on the mass feeding device 10 side on the touch panel 27 when a virtual jam occurrence is recognized has been described. 10, and the jam detection unit 41 of the printing apparatus 20 detects a jam of other printing paper P, the jam detection position is also displayed on the touch panel 27 at the same time.

  In the above description, not only the case where the entire printing paper P has not reached the printing apparatus 20 but also the case where a part of the printing paper P has not reached the printing apparatus 20 is recognized as a virtual jam occurrence. However, in this case, the printing paper P is detected by the registration sensor 24 for a predetermined elapsed time or more, so that the jam detection unit 41 also detects the jam. Accordingly, not only the mark “R” on the large-volume sheet feeding device 10 side is displayed on the touch panel 27 when a virtual jam occurs, but also the mark “B” on the printing device 20 side is displayed on the touch panel 27 at the same time. Will be. If a jam of the printing paper P occurs after the trailing edge of the printing paper P passes the registration sensor 24, only the jam detection of the jam detection unit 41 of the printing apparatus 20 is performed, and the printing apparatus Only the mark “B” on the 20 side is displayed on the touch panel 27, and the mark “R” on the large volume feeder 10 side is not displayed.

  In the description of the above embodiment, the virtual jam information output unit 44 in the printing apparatus 20 outputs the jam detection position information of the mark “R” as the virtual jam information to the virtual jam recognition unit 16 of the large-volume sheet feeding device 10. However, the virtual jam information may not necessarily be the jam detection position information of the mark “R”, for example, a signal indicating that the printing paper P has not reached the printing apparatus 20.

  In this case, the jam detection position display control unit 43 of the printing apparatus 20 receives the jam detection position information of the mark “R” from the mass feeding apparatus 10 side as in the above-described embodiment, and puts the mark “R” on the touch panel 27. Instead of displaying, the mark “R” is displayed on the touch panel 27 using the position information of the mark “R” preset on the printing apparatus 20 side in response to the detection of the unsatisfied print paper P in the virtual jam information output unit 44. "Is displayed.

  Then, the virtual jam recognition unit 16 of the mass paper feeding device 10 recognizes the occurrence of a virtual jam by receiving the paper unreachable signal output from the virtual jam information output unit 44.

  The jam removal detection unit 17 of the large-volume sheet feeding device 10 recognizes the occurrence of a virtual jam and then flags the position information of the mark “R” set in advance when the jam is released by the user. “0” is added to generate jam release information, and the jam release information is output to the jam detection position display control unit 43 of the printing apparatus 20. The jam detection position display control unit 43 hides the mark “R” on the touch panel 27 according to the input jam release information.

  Further, in the description of the above embodiment, when a jam of the printing paper P occurs in the range R1 shown in FIG. 1, this is recognized as a virtual jam on the mass feeding device 10 side, and the mass feeding device. By displaying the jam detection position on the 10 side on the touch panel 27, the user is prompted to release the jam from the large-volume paper feeder 10 side, but not only the range R1 shown in FIG. 1 but also the one shown in FIG. Similarly, when a jam of the printing paper P occurs in the range R2, this is recognized as a virtual jam occurrence on the upstream apparatus, that is, the printing apparatus 20, and the jam detection position on the printing apparatus 20 side is displayed on the touch panel 27. By displaying it, the user may be prompted to cancel the jam from the printing apparatus 20 side.

  Specifically, as shown in FIG. 4, a virtual jam information output unit 53 may be provided in the offset paper discharge device 30, and a virtual jam recognition unit 45 may be provided in the printing device 20.

  The operation of the configuration shown in FIG. 4 will be described with reference to the flowchart shown in FIG.

  First, the virtual jam information output unit 53 has not reached the offset paper discharge device 30 in whole or part of the print paper P sent from the printing device 20 based on the detection signal of the print paper P by the paper detection sensor 34. It is detected (S30). Specifically, the virtual jam information output unit 53 prints the entire printing paper P when the printing paper P is not detected by the paper detection sensor 34 for a predetermined elapsed time after receiving a print start instruction from the user. 20 and the paper detection sensor 34 detects the printing paper P. Thereafter, a paper detection sensor (not shown) provided downstream of the paper detection sensor 34 for a predetermined elapsed time. When the printing paper P is not detected by (omitted), it is detected that a part of the printing paper P has not been reached.

  When the virtual jam information output unit 53 detects that the print paper P as described above has not been reached, the virtual jam information output unit 53 uses the jam detection position information of the mark “C” illustrated in FIG. 1 as the virtual jam information. It outputs to the recognition part 45 (S32).

  The virtual jam recognition unit 45 of the printing apparatus 20 receives the virtual jam information output from the virtual jam information output unit 53 of the offset paper discharge apparatus 30, and the virtual jam information is detected when the jam detection unit 41 detects no jam. Recognized as a jam (S34). In other words, the virtual jam recognition unit 45 is configured to generate a jam of the print paper P between the exit paper detection sensor 26 of the printing apparatus 20 and the paper detection sensor 34 of the offset paper discharge apparatus 30, that is, in the range R2 shown in FIG. This is detected as a virtual jam.

  When the virtual jam recognition unit 45 recognizes the occurrence of a virtual jam, the virtual jam recognition unit 45 outputs the jam detection position information of “C” shown in FIG. 1 received as virtual jam information to the jam detection position display control unit 43. . At this time, the jam detection position display control unit 43 displays the mark “C” shown in FIG. 1 on the touch panel 27 (S36).

  Next, the user who sees the display of the mark “C” on the touch panel 27 opens the cover door (not shown) of the casing of the printing apparatus 20, and releases the jam of the printing paper P in the range R2 shown in FIG. 1 (S38). . When the cover door is closed by the user after the jam of the printing paper P is released, the opening / closing of the cover door is detected by the jam release detection unit 42, and the jam release detection unit 42 controls the jam release information to the jam detection position display control. To the unit 43.

  The jam detection position display control unit 43 of the printing apparatus 20 hides the display of the mark “C” on the touch panel 27 according to the input jam release information (S40).

  According to the printing system having the configuration shown in FIG. 4, when the printing paper P stays at the exit destination (the range R <b> 2 shown in FIG. 1) of the printing device 20, all or part of the printing paper sent out from the printing device 20 is removed. Detecting that the offset paper discharge device 30 has not been reached, and outputting virtual jam information from the offset paper discharge device 30 to the printing device 20 in response to the detection, the printing device 20 accepts the virtual jam information and prints. When the apparatus 20 recognizes that the jam of the printing paper that has not reached the offset paper discharge device 30 is detected as a virtual jam occurrence, based on the recognition of the virtual jam occurrence, A display that prompts the user to release jam from the printing apparatus 20 side can be performed, and the user can easily print paper from the printing apparatus 20 side by viewing this display. It can be removed.

  Further, in the above description, a virtual jam occurs not only when the entire printing paper P has not reached the offset paper discharge device 30 but also when a part of the printing paper P has not reached the offset paper discharge device 30. In this case, since the printing paper P is detected by the paper detection sensor 34 for a predetermined elapsed time or more, the jam detection unit 51 of the offset paper discharge device 30 also detects the jam. Is done. Accordingly, not only the mark “C” on the printing apparatus 20 side is displayed on the touch panel 27 when a virtual jam occurs, but also the mark “A” on the offset paper discharge apparatus 30 side is displayed on the touch panel 27 at the same time. Will be. If a jam of the print paper P occurs after the trailing edge of the print paper P has passed through the paper detection sensor 34, only the jam detection of the jam detection unit 51 of the offset paper discharge device 30 is performed. Only the mark “A” on the offset paper discharge device 30 side is displayed on the touch panel 27, and the mark “C” on the printing device 20 side is not displayed.

  In the above description, the virtual jam information output unit 53 in the offset paper discharge device 30 outputs the jam detection position information of the mark “C” as virtual jam information to the virtual jam recognition unit 45 of the printing apparatus 20. However, the virtual jam information may not necessarily be the jam detection position information of the mark “C”, and may be a signal indicating that the printing paper P has not reached the offset paper discharge device 30, for example.

  In this case, the virtual jam recognition unit 45 of the printing apparatus 20 recognizes the occurrence of a virtual jam by receiving the paper unreachable signal output from the virtual jam information output unit 53 of the offset paper discharge apparatus 30.

  Then, when the virtual jam recognition unit 45 recognizes the occurrence of a virtual jam, the jam detection position display control unit 43 marks the touch panel 27 using the position information of the mark “C” preset in the printing apparatus 20. “C” is displayed.

  Then, when the occurrence of a virtual jam is recognized and then the jam is released by the user, the jam release detection unit 42 adds a flag “0” to the position information of the mark “C” set in advance. Jam release information is generated, and the jam release information is output to the jam detection position display control unit 43.

  The jam detection position display control unit 43 hides the mark “C” on the touch panel 27 according to the input jam release information.

  Further, in the description of the above embodiment, virtual jamming is performed by switching between display and non-display of the marks “A”, “B”, “C”, “N”, and “R” on the touch panel 27. The display of jam detection and jam release display is switched, but this display mode is not necessarily required. For example, the color, brightness, shape, etc. of the mark is changed between the jam detection position and the jam release position. May be.

  In the description of the above-described embodiment, the mass feeding device 10 is used as the preprocessing device connected to the upstream side of the printing device 20, but the preprocessing device is not limited to this, and other publicly known devices are used. An apparatus may be used. In addition, the offset paper discharge device 30 is used as a post-processing device connected to the downstream side of the printing device 20, but the post-processing device is not limited to this, and other devices such as a stapling device, a bookbinding device, and an encapsulating sealing device can be used. A known device may be used.

DESCRIPTION OF SYMBOLS 1 Printing system 10 Mass supply apparatus 11 Loading stand 12 Paper detection sensor 13 Exit paper detection sensor 14 Control part 15 Jam detection part 16 Virtual jam recognition part 17 Jam release detection part 20 Printing apparatus 21 Ink head part 24 Registration sensor 25 Conveyance path Paper detection sensor 26 Exit paper detection sensor 27 Touch panel 30 Offset paper discharge device 31 Paper discharge tray 32 Offset guide plate 33 End fence plate 34 Paper detection sensor 40 Control unit 41 Jam detection unit 42 Jam release detection unit 43 Jam detection position display control unit 44 Virtual jam information output unit 45 Virtual jam recognition unit 50 Control unit 51 Jam detection unit 51 Jam release detection unit 51 Jam detection unit 52 Jam release detection unit 53 Virtual jam information output unit

Claims (5)

In a printing system comprising: a printing apparatus that performs a printing process on a printing paper; and a preprocessing device that is connected to the printing apparatus on the upstream side in the conveyance direction of the printing paper and that sends the printing paper to the printing apparatus.
Virtual jam information that outputs virtual jam information to the preprocessing device when the printing device detects that all or part of the printing paper sent from the preprocessing device has not reached the printing device With an output section,
A virtual jam recognition unit that accepts the virtual jam information when the preprocessing device accepts the virtual jam information and the preprocessing device does not detect a jam of the printing paper that has not reached the printing device as a virtual jam occurrence; Prepared,
A printing system comprising: a jam detection position display unit for displaying that a jam detection position is the pre-processing device when the virtual jam recognition unit recognizes the occurrence of the virtual jam. .   The printing according to claim 1, wherein the preprocessing device includes a jam removal detection unit that detects the release of the virtual jam and outputs jam release information to the printing device. system. The printing apparatus includes the jam detection position display unit,
3. The printing according to claim 2, wherein when the jam detection position display unit receives the jam release information , the display indicating that the jam detection position is the pre-processing device is canceled. system. The virtual jam information output unit outputs jam detection position information in the pre-processing device preset as the virtual jam information to the pre-processing device;
The virtual jam recognition unit acquires the jam detection position information, and outputs the jam detection position information to the printing apparatus when the virtual jam occurrence is recognized.
The jam detection position display unit performs display indicating that the jam detection position is the pre-processing device based on the jam detection position information output from the virtual jam recognition unit. The printing system according to claim 3. A printing system comprising: a printing device that performs a printing process on a printing paper; and a post-processing device that is connected to the printing device on the downstream side in the conveyance direction of the printing paper and receives the printing paper sent from the printing device In
Virtual jam information that outputs virtual jam information to the printing device when the post-processing device detects that all or part of the printing paper sent from the printing device has not reached the post-processing device With an output section,
The printing apparatus includes a virtual jam recognition unit that accepts the virtual jam information and recognizes when a jam of the printing paper that has not reached the post-processing apparatus in the printing apparatus is detected as a virtual jam occurrence. ,
A printing system comprising: a jam detection position display unit that displays that a jam detection position is the printing apparatus when the virtual jam recognition unit recognizes the occurrence of a virtual jam .

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