JP6025252B2 - Paper transport device - Google Patents

Description

  The present invention relates to a sheet conveying apparatus that conveys a sheet along a predetermined conveying path, and more particularly to a technique for controlling the conveyance of a sheet upstream from a jam occurrence point when a jam occurs.

  In general, a printing apparatus, a bookbinding apparatus, an enclosing / sealing apparatus, and the like are equipped with a sheet conveying apparatus including rollers for conveying the sheet, and the sheet taken into the apparatus passes through a predetermined conveying path by the sheet conveying apparatus. It is conveyed sequentially. Various processes such as printing and folding are performed on a sheet at a predetermined position in the course of the conveyance.

  In this paper transport device, when the paper is transported on the transport path, a jam may occur for some reason, and the paper may not be transported normally. Therefore, jam detection sensors are provided at various locations on the transport path. A technique is known in which when a sheet is detected, all sheets being conveyed are immediately stopped and guidance for taking out sheets remaining in the apparatus is displayed on a display unit (see, for example, Patent Document 1). Further, in Patent Document 2, when a jam occurs, the conveyance immediately stops for the paper upstream from the location where the jam occurred, but the conveyance downstream for the paper downstream from the location where the jam occurred. A paper conveying apparatus is disclosed in which the number of sheets remaining in the apparatus is reduced and the time required for taking out the remaining sheets is shortened by continuing to discharge outside the apparatus.

JP 2012-58588 A JP-A-3-79539

  However, in the conventional paper transport device, when a jam occurs, the transport immediately stops for the paper upstream from the location where the jam occurred. Therefore, there is a problem that it takes time to take out the remaining paper, and accordingly, the stop time (down time) of the apparatus becomes longer.

  SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a paper transport device that can reduce the downtime of the device due to the occurrence of a jam.

  The sheet conveying apparatus of the present invention includes a conveying unit that conveys a sheet along a predetermined conveying path, a jam detecting unit that detects the occurrence of a jam in the conveying path, and a residual sheet remaining in the conveying path when the jam occurs. Storage means for storing a take-out position set in advance as an easy-to-take position, and when the occurrence of a jam is detected by the jam detection means, the remaining paper remaining upstream of the conveyance path from the detected jam position is jammed. And a conveyance control means for controlling the conveyance of the remaining paper by the conveyance means so as to stop at the take-out position upstream of the position.

  Note that the sheet conveying apparatus of the present invention may be any apparatus that controls the conveyance of at least one remaining sheet remaining upstream of the jam position, and all of the cases where two or more sheets remain upstream of the jam position. It is not necessary to control the conveyance.

  Further, in the sheet conveying apparatus of the present invention, when the conveying unit conveys a sheet bundle formed by arranging a plurality of sheets along a predetermined conveying path, it remains upstream of the conveying path from the position of the jam. It may be one that controls the conveyance of a sheet bundle.

  In the above description, the “takeout position” may be determined at one point or may have a width. When the “pick-out position” is fixed at one point, “the paper stops at the pick-up position” means that the paper is stopped so that a predetermined position coincides with that one point, or any paper Means that the paper is stopped so that the position of the paper is on that point, and if the "pick-out position" has a width, "the paper stops at the pick-up position" Means to stop to be within range.

  In the paper transport device of the present invention, the transport control means is configured such that when the jam detection means detects the occurrence of the jam, the first residual paper remaining upstream of the transport path from the detected jam position is the first. When the second remaining sheet is stopped at the take-out position immediately adjacent to the downstream side of the second remaining sheet that has been conveyed by the conveying means next to the remaining sheet of the second sheet, the second remaining sheet is in front of the take-out position closest to the downstream side. The conveyance of the second residual paper by the conveyance means may be controlled so as to stop at the position.

  Here, the “position before the take-out position” means a position as close as possible to the take-out position without moving other remaining sheets stopped at the take-out position.

  Further, in the above-described paper transport device of the present invention, the transport control means may detect two or more take-out positions upstream of the jam position and downstream of the second remaining paper when the jam detection means detects the occurrence of the jam. If none of the remaining sheets are stopped at the take-out position further downstream than the take-out position closest to the downstream side of the second remaining sheet, the first remaining sheet is taken out ahead of the take-out position. The conveyance of the first and second residual sheets by the conveying unit may be controlled independently so that the second residual sheet stops at the position and stops at the take-out position closest to the downstream side.

  According to the paper conveyance device of the present invention, the conveyance means for conveying the paper along the predetermined conveyance path, the jam detection means for detecting the occurrence of the jam in the conveyance path, and the residual remaining in the conveyance path when the jam occurs. Storage means for storing a take-out position set in advance as a position where paper can be easily taken out, and when the occurrence of a jam is detected by the jam detection means, residual paper remaining upstream in the conveyance path from the detected jam position. , And a conveyance control means for controlling the conveyance of the remaining paper by the conveyance means so as to stop at the take-out position upstream from the position of the jam, so that the time required for taking out the residual paper can be shortened, and as a result The downtime of the device due to the occurrence of jam can be shortened.

  In the paper transport apparatus of the present invention, when the transport control unit detects the occurrence of a jam by the jam detection unit, the first residual paper remaining upstream of the transport path from the detected jam position is the first. When the second remaining sheet is stopped at the take-out position immediately adjacent to the downstream side of the second remaining sheet that has been conveyed by the conveying means next to the remaining sheet of the second sheet, the second remaining sheet is in front of the take-out position closest to the downstream side. In the case where the conveyance of the second residual paper by the conveyance means is controlled so as to stop at the position, it is possible to reduce the time required for the operation of taking out the residual paper as will be described below.

  When performing the above-described transport control to stop the remaining paper at the take-out position, the remaining paper of interest cannot be stopped at the take-out position because other residual paper is stopped at the take-out position closest to the downstream side. Although it is generally considered that the conveyance of the remaining paper is stopped immediately when a jam occurs, even in such a case, the conveyance of the residual paper of interest is not immediately stopped, but the take-out position When the above-mentioned transport control is performed such that the transport is stopped as close as possible to the position before the unloading position, the target remaining sheet should be moved manually by hand when removing the remaining sheet. The distance to the position can be shortened, and the time required for taking out the remaining paper can be shortened.

  Further, in the paper transport device of the present invention, when the transport control unit detects the occurrence of the jam by the jam detection unit, the transport control unit detects two or more take-out positions upstream of the jam position and downstream of the second remaining paper. If none of the remaining sheets are stopped at the take-out position further downstream than the take-out position closest to the downstream side of the second remaining sheet, the first remaining sheet is taken out ahead of the take-out position. In the case where the conveyance of the first and second residual sheets by the conveying unit is independently controlled so that the second remaining sheet is stopped at the position and stopped at the take-out position closest to the downstream side, As will be described below, it is possible to reduce the time required for the operation of taking out the remaining paper.

  When performing the above-described conveyance control for stopping the remaining sheet at the take-out position, it is generally considered to convey and stop each remaining sheet to the take-out position closest to the downstream side. When the takeout position closest to the downstream side is common to the two remaining sheets, only one of the remaining sheets can be stopped at the takeout position. On the other hand, it is confirmed whether there is another available take-out position further downstream, and when there is another take-out position available, two remaining sheets are further separated from the take-out position closest to the downstream side. When the above-described transport control of stopping at the previous take-out position is performed, it is possible to stop more residual paper at a position where it can be easily taken out, thereby reducing the time required for taking out the remaining paper. It can be shortened.

Schematic configuration diagram of sealed letter creation system Block diagram showing the configuration of the control system of the sealed letter creation system The figure which shows an example of the state which jammed during conveyance of the paper in a sealing device The figure which shows an example of the state after the conveyance control by this invention was performed in the case of FIG. The figure which shows an example of the state which jammed during conveyance of the paper in a sealing device The figure which shows an example after the conveyance control by this invention is performed in the case of FIG. The figure which shows an example of the state which jammed during conveyance of the paper in a sealing device The figure which shows an example of the state after the conveyance control by this invention was performed in the case of FIG. A flowchart showing an example of processing performed by the transport control unit

  Hereinafter, an embodiment of a sheet conveying device of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a sealed letter preparation system 1 to which a paper conveying apparatus of the present invention is applied. As shown in FIG. 1, the sealed letter creating system 1 uses a printing device 20 that performs a printing process on an envelope sheet and an inclusion sheet used for creating a sealed letter, and a printing sheet that has been subjected to a printing process in the printing apparatus 20. And a sealed sealing device 30 for creating a sealed letter.

  The printing apparatus 20 includes an ink head unit 21 that ejects ink onto printing paper. The ink head unit 21 performs a printing process by ejecting ink onto printing paper based on the input inclusions and envelope 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.

  Further, the printing apparatus 20 includes a paper feed tray 22 on which the inclusion paper HP is placed and a straight paper feed base 23 on which the envelope paper FP is placed. The paper feed tray 22 includes a first paper feed tray 22a, a second paper feed tray 22b, and a third paper feed tray 22c. In these paper feed trays, inclusion paper HP having various paper types and paper sizes is provided. Is installed. In addition, the envelope paper FP is installed on the straight paper feed tray 23. When the envelope is created, the envelope sheet FP and the inclusion sheet HP are picked up and fed from the straight sheet feed tray 23 and the sheet feed tray 22 by a sheet feed roller, respectively.

  In addition, the printing apparatus 20 includes a circulation conveyance path 24 that conveys the envelope paper FP and the inclusion paper HP. The circulation conveyance path 24 conveys the envelope paper FP fed from the straight paper feed tray 23 and the inclusion paper HP fed from the paper feed tray 22 from the upstream side to the downstream side of the ink head unit 21. Is.

  In addition, the circulation conveyance path 24 passes the printing paper subjected to the printing process in the ink head unit 21 as it is to the communication conveyance path 25 in the case of single-sided printing, and the single-sided printing in the case of double-sided printing. The printing paper that has been subjected to the printing process is conveyed to the reversing unit 26, and the single-sided printed paper that has been turned upside down in the reversing unit 26 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 is transferred to the communication transport path 25. Then, the printed printing paper received by the communication conveyance path 25 is sent out to the enclosing sealing device 30.

  Further, the printing apparatus 20 includes a touch panel 27 that displays a predetermined setting input screen and receives a predetermined setting input by a user. The touch panel 27 in the present embodiment displays, for example, a guidance for removing a sheet remaining in the apparatus to the user when a jam of the print sheet occurs in the enclosing / sealing apparatus 30 and the conveyance of the print sheet is stopped. Is. The guidance display method will be described in detail later.

  The enclosing and sealing device 30 creates an envelope by using the envelope paper FP received from the printing device 20 and encapsulating the inclusion paper HP in the envelope by folding it in two or three. is there. As shown in FIG. 1, the enclosing / sealing device 30 includes a first conveying path R <b> 1 for conveying the encapsulated paper HP received from the printing device 20 to the encapsulated material folding unit 32 through the encapsulated material matching unit 31, and the printing device. 20 is provided with a second transport path R2 for transporting the envelope paper FP received from 20 through the envelope paper transport section 34 and the envelope paper standby section 35 to the first envelope folding section 36 sequentially. The first transport path R1 and the second transport path R2 are switched by a flap 310 whose posture is changed by driving the solenoid SL1.

  The inclusion matching unit 31 includes a conveyance roller 311 whose rotation is started / stopped by driving the motor CD1, and a rear end that pushes the rear end of the inclusion paper HP toward the downstream side of the conveyance path by driving the motor PM1. A pushing member 312; a guide member 313 that regulates the side end of the encapsulated paper HP; and a gate member 314 that moves forward and backward to the conveying path by driving the solenoid SL2 to temporarily stop the encapsulated paper HP. With these members, the inclusion sheets HP received from the printing apparatus 20 are sequentially received, and the received inclusion sheets HP are temporarily stored in the same position for each sheet, and stored in the inclusion folding section 32 at a predetermined timing. It sends out. Note that the position of the guide member 313 in the direction orthogonal to the paper conveyance direction is adjusted by driving the motor PM2, and the position of the leading end abutting member 314 in the paper conveyance direction is adjusted by driving the motor PM3.

  The enclosure folding unit 32 includes a plurality of folding rollers 321 longer than the width direction of the enclosure paper HP whose rotation is started / stopped by driving the motor BLM2, and a first folding size adjustment that defines the size of the first folding process. A part 322, a second fold size adjustment part 323 that defines the size of the second fold process, a route switching flipper 324 that opens and closes a part of the fold path by driving the motor PM4, and switches between two folds and three folds. These members are used to perform a folding process such as a two-fold or a three-fold on one encapsulated paper HP sent from the encapsulated material matching unit 31. The first folding size adjustment unit 322 is adjusted in position in the paper conveyance direction by driving the motor PM5, and the second folding size adjustment unit 323 is adjusted in position in the paper conveyance direction by driving the motor PM6. . In addition, the folding roller 321 on the side that sends the folded-filled inclusion paper HP toward the inclusion standby section 33 is provided with a dial JD that can rotate the roller 321 by manual operation.

  The enclosing / sealing apparatus 30 includes a first enfolding unit 32 for conveying the encapsulating sheet HP, which has been subjected to the folding process in the enclosing unit folding unit 32, to the first envelope folding unit 36 through the enclosing unit standby unit 33. Three transport paths R3 are provided. The third transport path R3 is configured to merge with the second transport path R2 at the first envelope folding section 36.

  The enclosure standby unit 33 includes a plurality of conveyance roller pairs 331 whose rotation is started / stopped by driving the motor PM7, and the folding process sent from the enclosure folding unit 32 by controlling the rotation of the conveyance roller 331. At the timing when the encapsulated paper HP that has been received is received, the received encapsulated paper HP is temporarily held, and the envelope paper FP to be encapsulated with the enclosed paper HP is sent from the envelope paper standby section 35 to the first envelope folding section 36. In addition, the enclosed paper HP that has been waiting is sent out toward the first envelope folding section 36.

  On the other hand, the envelope paper transport unit 34 provided on the second transport path R2 includes a plurality of transport roller pairs 341 whose rotation is started / stopped by driving the motor BLM1, and receives the envelope paper FP from the printing apparatus 20, The received envelope paper FP is conveyed to the envelope paper standby unit 35.

  The envelope paper standby unit 35 includes a pair of conveyance rollers 351 and 352, and controls the rotation of the conveyance rollers 351 and 352 to accept and accept the envelope paper FP sent from the envelope paper conveyance unit 34. The paper FP is temporarily waited at the points of the conveyance rollers 351 and 352, and is made to wait in accordance with the timing at which the inclusion paper HP to be enclosed in the envelope paper FP is sent from the inclusion standby portion 33 to the first envelope folding portion 36. The envelope paper FP is sent out toward the first envelope folding section 36. The transport rollers 351 and 352 can change the position in the paper transport direction and / or the direction perpendicular to the paper transport direction by driving the motor PM8 and the motor PM9 with the envelope paper FP sandwiched therebetween. The relative position between the inclusion sheet HP and the envelope sheet FP that merge at the first envelope folding section 36 can be changed.

  The first envelope folding unit 36 includes a plurality of folding rollers 361 longer than the width direction of the envelope paper FP whose rotation is started / stopped by driving the motor BLM3, and a folding size adjusting unit 362 that defines the folding size of the envelope paper FP. And the second envelope folded so that the enveloped paper FP conveyed from the envelope paper standby unit 35 and hitting the size adjusting unit 362 is sandwiched with the folded inclusion paper HP sent from the enclosure standby unit 33 By conveying toward the part 37, the envelope paper FP is included in the envelope paper FP to form an envelope, and the envelope paper HP is enclosed. Note that the folding size adjustment unit 362 is adjusted in position in the paper transport direction by driving the motor PM10.

  The second envelope folding unit 37 includes a pair of conveying rollers 371 and 375 whose rotation is started / stopped by driving the motor DSC1 and a plurality of folding rollers 372, a folding size adjusting unit 373 that defines the folding size of the envelope paper FP, and an envelope And a hydration section 374 for exerting adhesive force by applying water to the portion where the glue is applied, and transporting the sealed envelope sent from the first envelope folding section 36 to the size adjustment section 373 Then, water is added to the sealed envelope that has come into contact with the size adjusting section 373 by the water adding section 374, further folded by a plurality of folding rollers 372, and sent to the crimping section 38. Note that the position of the folding size adjusting unit 373 in the paper transport direction is adjusted by driving the motor PM11.

  The crimping section 38 includes a pair of crimping rollers 381 whose rotation is started / stopped by driving the motor BLM4, and both edges in the width direction of the envelope sent from the second envelope folding section 37 are moved up and down by the pressing rollers 381. And sealed by applying pressure to form a sealed letter FS. The formed sealed letter FS is sent out to the discharge unit 39.

  The discharge unit 39 includes a plurality of conveying rollers 391 whose rotation is started / stopped by driving the motor DC4, a guide member 392 that guides the sealed letter FS conveyed by the conveying rollers 391 to the conveying roller 393 side, and driving of the motor DC5. A plurality of conveying rollers 393 whose rotation is started / stopped by the rotation and a discharge tray 394 on which the sealed letter FS conveyed by the conveying roller 393 is loaded, and the sealed letter FS received from the crimping section 38 is conveyed to the discharging tray 394. Is.

  In addition, as shown in FIG. 1, the enclosing and sealing device 30 is provided with a plurality of paper detection sensors S1, S5, S7, S8, S11,. .., S24 is provided. Each of these paper detection sensors includes an optical sensor having a light emitting element and a light receiving element.

  In addition, as shown in FIG. 1, the enclosing / sealing device 30 is provided with openings A1 to A7 at seven locations on the conveyance path, and the conveyance path is opened and closed at positions corresponding to the openings A1 to A7. Jam release doors D1 to D7 that can be opened and closed by manual operation are provided. In FIG. 1, the open state of each jam release door D1 to D7 is indicated by a dotted line. As a result, when there is residual paper in any of the sections of the transport path where the jam release doors D1 to D7 are provided, the user manually opens the jam release door through the opening corresponding to the section. The remaining paper can be easily taken out by opening and putting a hand into the conveyance path from the opening. On the other hand, when the remaining sheet exists in a section where no opening or jam release door is provided, the user manually rotates the conveyance roller near the position of the remaining sheet prior to the above-described take-out operation. It is necessary to perform an operation of moving the residual paper to a section where the opening and the jam release door are provided, and it takes time to take out the residual paper accordingly.

  Next, a control system of the encapsulating and sealing system 1 of the present embodiment will be described with reference to FIG. The enclosing / sealing system 1 of the present embodiment is characterized by the residual paper conveyance control at the time of jam occurrence, and here, the control system related thereto will be mainly described.

  As shown in FIG. 2, the printing apparatus 20 includes a control unit 28 that controls the entire printing apparatus 20. The control unit 28 temporarily stops the printing operation of the printing device 20 in conjunction with the stopping operation of the sealing device 30 when a jam of the printing paper is detected in the sealing device 30. Further, as described above, when the jamming of the printing paper is detected in the enclosing / sealing device 30, the control unit 28 receives jammed paper and residual paper (paper other than the jammed paper remaining in the conveyance path) from the enclosing / sealing device 30 side. A display control unit 28a is provided that receives information related to the release position and causes the touch panel 27 to display a screen that prompts the user to remove jammed paper and residual paper from the release position. At this time, as a screen for urging to remove the jammed paper and the residual paper from the specific release position, for example, a screen for displaying an image showing the position of the opening located closest to the jammed paper or the residual paper, or in addition to the jammed paper A screen for displaying a message prompting the user to remove the sheet and the remaining sheet can be displayed.

  As shown in FIG. 2, the sealed sealing device 30 includes a control unit 50 that controls the entire sealed sealing device 30, and the control unit 51 includes paper detection sensors S 1, S 5, S 7, S 8, S 11,. , The jam detection unit 51 that detects the occurrence of a jam in the enclosing / sealing device 30 based on the output signal from S24, and when the jam detection unit 51 detects the occurrence of a jam, And a conveyance control unit 52 that controls conveyance of residual paper remaining in the enclosing and sealing device 30. Specifically, the transport control unit 52 drives the motors PM1 to PM11, BLM1 to BLM4, DSC1, DC1, DC4, DC5 and solenoids SL1 and SL2, and operates various components related to transport of paper such as transport rollers. By controlling this, the conveyance of the residual paper by these components is controlled.

  When the jam detection unit 51 detects the occurrence of a jam, the conveyance control unit 52 continues normal conveyance for residual paper remaining downstream of the conveyance path from the jam position, and removes the residual paper from the apparatus. For the remaining paper that is discharged to the outside and remains upstream of the conveyance path from the jammed position, depending on the position, it immediately stops at that position, or downstream from the remaining paper and upstream from the jammed position. Then, the conveyance is controlled so as to stop after conveying to a predetermined stop position.

  The enclosing / sealing device 30 includes a storage unit 53 that stores a take-out position that is set in advance as a position where it is easy to take out the remaining paper remaining in the carrying path when a jam occurs. For the remaining paper remaining on the upstream side of the transport path, basically, the take-out position that is closest to the downstream side of the remaining paper out of the take-out position upstream from the jam position stored in the storage means 53. The conveyance is controlled so as to stop at the position. However, the remaining paper already in the take-out position is immediately stopped at that position.

  In the storage means 53, the storage position of the inclusion sheet HP in the inclusion alignment section 31 (the leading end of the inclusion sheet HP is advanced into the conveyance path) as a position where it is easy to take out the remaining sheet remaining in the conveyance path when a jam occurs. The position where the sheet detection sensor S7 is abutted against the gate member 314 and the standby position of the inclusion sheet HP in the inclusion standby section 33 (the leading end of the inclusion sheet HP is the downstream end of the inclusion standby section 33) The position where the paper detection sensor S12 is moved) and the standby position of the envelope paper FP in the envelope paper standby section 35 (the leading edge of the envelope paper FP reaches the front of the first envelope folding section 36), and the paper detection sensor S14 And a position in the vicinity of the conveyance roller 375 of the second envelope folding unit 37 (a position at which the sheet detection sensor S22 responds). When there is an opening and a jam release door in the vicinity of each take-out position, and there is residual paper at the take-out position, the user opens the jam release door by manually operating the opening / closing lever from the opening, and opens The residual paper can be easily taken out from the section.

  For example, as illustrated in FIG. 3, the conveyance control unit 52 performs the sheet detection sensor S <b> 40 in the middle of conveying the first to fifth sheets for creating a sealed letter (an inclusion sheet, an envelope sheet, or a sealed letter) in the enclosing sealing device 30. If a jam occurs in the first sealed letter for some reason in the vicinity of, and the second and subsequent remaining sheets remain on the transport path in the state shown in the drawing, they are directed toward the inclusion folding section 32. The fourth enclosing paper that has been transported stops at the enclosing material HP standby position in the enclosing material standby section 33, and the fourth envelope paper is the standby position of the envelope paper FP in the envelope paper standby section 35. The conveyance of each residual sheet is controlled independently so that the fifth inclusion sheet stops at the storage position of the inclusion sheet HP in the inclusion alignment unit 31. As a result, the entire operation of the sealing device 30 is stopped in the state shown in FIG.

  As described above, the conveyance control unit 52 basically takes out any residual paper remaining in the upstream of the conveyance path from the jam position, in which the residual paper is stored in the storage unit 53. If the remaining paper is stopped at the take-out position that is closest to the downstream side of the target residual paper and cannot be stopped at the take-out position, the residual paper is controlled. As for, the conveyance is controlled so as to stop at a position before the take-out position, which is as close as possible to the take-out position closest to the downstream side.

  For example, as shown in FIG. 5, in the middle of transporting the first to sixth sealed paper (encapsulated paper, envelope paper, or sealed letter) in the sealed sealing device 30, for some reason near the paper detection sensor S40. If a jam occurs in the first sealed letter and the second and subsequent remaining sheets remain on the transport path in the state shown in the figure, the five mails that have started to be transported toward the enclosure folding part 32 Another remaining paper (fourth inclusion paper) has already stopped at the take-out position closest to the downstream side with respect to the inclusion paper of the eye, that is, the standby position of the inclusion paper HP in the inclusion standby section 33. Therefore, the conveyance control unit 52 controls the conveyance so that the fifth inclusion sheet is stopped at a position before the take-out position as shown in FIG.

  Further, when the takeout position closest to the downstream side is common to the two remaining sheets (in this case, if the remaining sheet is already in one of the takeout positions, the transfer control unit 52 sets the takeout position to the remaining position. 2) Check whether there is another available take-out position further downstream, and if there is another available take-out position, two remaining sheets The remaining paper is controlled so as to stop at the take-out position closest to the downstream side and the take-out position further ahead. If there is no other take-out position available at the downstream side, one of the two remaining sheets is stopped at the take-out position on the downstream side, and the other position located on the upstream side is stopped. The above-described transport control is performed to stop the remaining paper at a position before the take-out position.

  For example, as shown in FIG. 7, in the middle of transporting the first to fifth sealed paper (enclosed paper, envelope paper, or sealed letter) in the sealed sealing device 30, for some reason near the paper detection sensor S <b> 40. If a jam occurs in the first sealed letter and the remaining sheets after the second letter remain on the conveying path in the state shown in the figure, the four letters that have started to be conveyed toward the inclusion folding section 32. The take-out position closest to the downstream side with respect to the inclusion paper of the eye and the third inclusion paper at the standby position of the inclusion paper HP in the inclusion standby section 33 is “the inclusion paper in the inclusion standby section 33. Since the “HP standby position” is common, the conveyance control unit 52 moves the other position to the take-out position further downstream than the take-out position, that is, the position near the carry roller 375 of the second envelope folding unit 37. Residual paper is stopped On the basis of the output signal from the sheet detection sensor S22, and if it is confirmed that the other remaining sheets are not stopped, the second envelope of the third inclusion sheet HP is confirmed. The conveyance (enclosure sealing process) is advanced to a position near the conveyance roller 375 of the folding unit 37 and stopped, and the fourth encapsulated paper HP is conveyed to the standby position of the encapsulated paper HP in the enclosed material waiting unit 33 and stopped. Let As a result, the entire operation of the sealing device 30 is stopped in the state shown in FIG.

  Here, referring to the flowchart of FIG. 9, when a jam occurs in the vicinity of the sheet detection sensor S40 during the conveyance of the sheet on the first conveyance path R1 in the enclosing and sealing device 30, the first conveyance path An example of conveyance control by the conveyance control unit 52 performed on a sheet (target residual sheet) being conveyed on R1 will be described. First, the conveyance control unit 52 determines whether or not the target residual sheet is in a state where conveyance from the inclusion matching unit 31 toward the inclusion folding unit 32 is started (ST1). When it is determined that the state has not been started (ST1: NO), the target residual sheet is stopped at the storage position of the inclusion sheet HP in the inclusion alignment unit 31 (ST2), and the process is ended. On the other hand, in the determination of ST1, when it is determined that the conveyance is started toward the inclusion folding unit 32 (ST1: YES), the enclosure standby unit 33 further encloses from the position of the sheet. It is determined whether or not there is a previous encapsulated sheet on the conveyance path to the standby position (the downstream closest take-out position) of the physical sheet HP (ST3). Therefore, when it is determined that there is no previous encapsulated sheet on the conveyance path to the enclosed sheet HP standby position in the encapsulated object waiting unit 33 (ST3: YES), the target remaining sheet is encapsulated. The encapsulated paper HP is transported to the standby position in the standby unit 33 and stopped (ST4), and the process ends.

  On the other hand, in the determination of ST3, when it is determined that there is a previous encapsulated sheet on the transport path to the encapsulated sheet HP standby position in the encapsulated object standby unit 33 (ST3: NO), the standby position Further, it is determined whether other remaining sheets are stopped at the take-out position near the transport roller 375 further downstream (ST5). Therefore, if it is determined that other remaining sheets are not stopped at the take-out position near the carry roller 375 (ST5: NO), the previous encapsulated paper is carried to the take-out position near the carry roller 375. Then, the target remaining sheet is conveyed to the standby position of the inclusion sheet HP in the inclusion waiting unit 33 and stopped (ST4), and the process is terminated. On the other hand, if it is determined in ST5 that other remaining sheets are stopped at the take-out position in the vicinity of the transport roller 375 (ST5: YES), the previous encapsulated sheet is used as the enclosing object standby unit 33. Is stopped at the standby position of the inclusion paper HP in the storage medium HP, and the target residual paper is the target residual paper in the standby position of the inclusion paper HP in the inclusion standby section 33 of the inclusion paper HP in the inclusion standby section 33. It is transported to a position before the standby position and stopped (ST6), and the process is terminated.

  With the above configuration, according to the encapsulating and sealing system 1 of the present embodiment, when the occurrence of a paper jam is detected in the encapsulating and sealing device 30, the remaining paper remaining on the upstream side of the conveyance path from the detected jam position. Is provided with a transport control unit 52 that controls the transport of the remaining paper by the transport means so as to stop at the take-out position upstream of the jam position, which is set in advance as a position where the paper can be easily taken out. As a result, the downtime of the apparatus due to the occurrence of a jam can be shortened.

  In the above-described embodiment, when a jam occurs, a case has been described in which the normal conveyance is continued and discharged to the outside of the apparatus with respect to the remaining paper remaining on the downstream side of the conveyance path from the position of the jam. However, the conveyance control may be performed such that the conveyance is stopped immediately when the jam occurs or the conveyance is stopped after the conveyance to a predetermined stop position.

  In the above embodiment, the case where the paper conveying apparatus of the present invention is applied to the enclosing and sealing system 1 has been described. However, the present invention is not limited to this, and any other structure in which a structure for conveying paper such as a bookbinding apparatus is employed. It can be applied to a paper processing apparatus.

  In the paper transport device of the present invention, when the paper transport path has a configuration in which a plurality of partial transport paths merge, a jam occurs in any one of the transport paths upstream from the junction. If transport of paper on the transport path stops, normal transport processing cannot be performed even if it is attempted to continue transporting the processed material being transported on the other transport path before the merge. It is preferable to apply the residual paper conveyance control according to the present invention, assuming that the conveyance path is also upstream of the jam position.

DESCRIPTION OF SYMBOLS 1 Enclosed sealing system 20 Printing device 27 Touch panel 30 Enclosed sealing device 31 Enclosed matter matching unit 32 Enclosed matter folding unit 33 Enclosed matter standby unit 34 Envelope paper transport unit 35 Envelope paper standby unit 36 First envelope folding unit 37 Second envelope folding unit 38 pressure bonding part 39 discharge part 50 control part 51 jam detection part 52 conveyance control part 53 memory | storage means A1-A7 opening part D1-D7 jam release door S1, S5, S7, ... Paper detection sensor

Claims (2)

Conveying means for conveying the paper along a predetermined conveying path;
Jam detecting means for detecting the occurrence of jam in the transport path;
Storage means for storing a take-out position set in advance as a position where it is easy to take out the remaining paper remaining in the transport path when a jam occurs;
When the occurrence of a jam is detected by the jam detection means, the remaining paper remaining upstream of the transport path from the detected jam position stops at the take-out position upstream of the jam position. Conveyance control means for controlling the conveyance of the residual paper by the conveyance means,
When the occurrence of a jam is detected by the jam detection means, the conveyance control means detects that the first residual paper remaining upstream of the conveyance path from the detected jam position is the first residual paper. Next, in the case where the second remaining sheet is stopped at the take-out position closest to the downstream side of the second remaining sheet conveyed by the conveying unit, the second remaining sheet is located before the take-out position closest to the downstream side. A sheet conveying apparatus for controlling the conveyance of the second residual sheet by the conveying means so as to stop at the position . When the occurrence of a jam is detected by the jam detection unit, the conveyance control unit detects the first of two or more take-out positions upstream of the detected jam position and downstream of the second remaining sheet. When no remaining paper is stopped at the take-out position further downstream than the take-out position closest to the downstream side of the second residual paper, the first remaining paper is at the take-out position at the front. The conveyance means controls the conveyance of the first and second residual sheets independently so that the second residual sheet is stopped and stopped at the take-out position closest to the downstream side. The sheet conveying apparatus according to claim 1, wherein

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