JP5036632B2 - Post-processing system, image processing system, post-processing method, and recording medium - Google Patents

Description

  The present invention relates to a post-processing system, an image processing system, a post-processing method, and a recording medium that are disposed downstream of an image processing apparatus such as a copying machine and perform post-processing on an output sheet-like medium.

An example of a post-processing device that performs post-processing on a sheet-like medium (for example, paper, recording paper, or transfer paper) on which an image is recorded by an image forming apparatus is disclosed in Patent Document 1, for example. In this post-processing apparatus, Z-folding is used as an example of post-processing, and a guide unit is provided that defines the sheet conveyance direction when Z-folding is performed and when Z-folding is not performed. Thus, it is possible to mix and process a sheet that is to be Z-folded and a sheet that is not to be Z-folded without having to leave a sheet space on the image forming apparatus side.
JP 2006-219245 A

  For example, when Z-folding is performed on the transfer paper in a post-processing apparatus as disclosed in Patent Document 1, folding time for performing Z-folding is required. Furthermore, when stapling Z-folded transfer paper (Z-folded paper), after Z-folding is completed, a transport time for transporting the Z-folded paper to the stapling means (staple device) is required. Therefore, the transfer paper to be transported next needs to stand by between the folding time and the transport time, resulting in a problem that productivity is lowered.

  The present invention has been made in view of the above circumstances, and during the time during which folding is performed on a predetermined sheet-shaped medium and the time during which the sheet-shaped medium is conveyed to the stapling means after the folding is finished, It is an object of the present invention to provide a post-processing system, an image processing system, a post-processing method, and a recording medium that can prevent a decrease in productivity caused by waiting for a sheet-like medium to be transported to the printer.

  In order to achieve such an object, the post-processing system of the present invention is arranged on a first transport path for transporting a loaded sheet-like medium, and the first transport path. Pre-stacking means for stacking the sheet-like medium to be conveyed, stapling means for applying a predetermined type of staple to the sheet-like medium conveyed through the first conveyance path, and control means for controlling conveyance of the sheet-like medium The second post-processing system has a second path for conveying a folded sheet-like medium that has been folded in a predetermined format by the folding means. And the control means conveys the succeeding sheet-like medium following the folded sheet-like medium in advance through the first conveying path and stacks it on the pre-stacking means. At a timing that enables the subsequent sheet-like medium can be transported together to release the stack by prestack means and conveying the subsequent sheet-like medium and the folded sheet-shaped medium to the stapling means.

  In the post-processing system of the present invention, the folded sheet-like medium conveyed on the second conveyance path has detection means for detecting before joining the first conveyance path, and the control means is formed into a folded sheet shape by the detection means. The subsequent sheet-like medium is stacked on the pre-stacking means until the medium is detected, and when the folded sheet-like medium is detected by the detecting means, the subsequent sheet-like medium and the folded sheet-like medium are transferred to the first transport path. The stack by the pre-stack means may be released at the timing when the stacked state is reached.

  In the post-processing system of the present invention, before the folded sheet medium is folded by the folding means, it has notification means for notifying in advance that the folded sheet medium is transported through the second transport path, and is controlled. The means may be configured to stack the succeeding sheet-like medium on the prestack means when receiving the notification from the notification means.

  In the post-processing system of the present invention, the control means receives in advance binding order information indicating each binding order of the folded sheet-shaped medium and the subsequent sheet-shaped medium, and based on the binding order information, the subsequent sheet-shaped medium is transferred to the prestack means. The stacking and the stacking by the prestacking unit may be released so that the succeeding sheet-like medium and the folded sheet-like medium are overlapped on the first conveyance path.

  In the post-processing system of the present invention, the control means may temporarily stop the conveyance of the folded sheet medium when releasing the stack by the prestack means.

  In the post-processing system of the present invention, when the folded sheet medium is Z-folded by the folding unit, the control unit may convey the folded sheet medium along the second conveyance path.

  In the post-processing system of the present invention, the folding means, the prestacking means, and the stapling means may be provided in separate apparatuses.

  The image processing system of the present invention includes the post-processing system of the present invention.

  The post-processing method of the present invention includes a pre-stacking unit that is disposed on a first transport path for transporting a loaded sheet-like medium, and stacks the sheet-like medium transported on the first transport path; A post-processing method performed in a post-processing system having a stapling means for applying a predetermined type of staple to a sheet-like medium conveyed through one conveyance path, wherein the folded sheet-like medium is folded in a predetermined type A stacking step in which a succeeding sheet-shaped medium following the folded sheet-shaped medium is transported in advance through the first transport path and stacked on the prestacking means before the folded sheet-shaped medium is transported; A folded sheet-shaped medium conveying step for conveying using a second conveying path that merges with the first conveying path downstream of the means, and conveying both the folded sheet-shaped medium and the subsequent sheet-shaped medium. And a stack releasing step for releasing the stack by the pre-stacking means at a timing to carry out, and a sheet-like medium transporting step for transporting the succeeding sheet-like medium and the folded sheet-like medium to the stapling means. To do.

  In the post-processing method of the present invention, in the stacking step, the succeeding sheet-like medium is stacked on the pre-stacking means until the folded sheet-like medium conveyed through the second conveyance path joins the first conveyance path, In the stack release step, when the folded sheet-shaped medium joins the first transport path, the pre-stacking means performs the timing at which the succeeding sheet-shaped medium and the folded sheet-shaped medium overlap with each other in the first transport path. The stack may be released.

  In the post-processing method of the present invention, the folded sheet-like medium has a notifying step for notifying in advance that the folded sheet-like medium is conveyed along the second conveyance path before being folded in a predetermined format, The step may be characterized in that when the notification in the notification step is received, the subsequent sheet-like medium is stacked on the pre-stacking means.

  In the post-processing method of the present invention, the stacking step and the destacking step are characterized in that stacking and destacking are performed based on binding order information indicating the binding order of the folded sheet-like medium and the subsequent sheet-like medium. Good.

  The post-processing method of the present invention may include a temporary stop step for temporarily stopping the conveyance of the folded sheet medium when the stack release step is performed.

  In the post-processing method of the present invention, in the folded sheet-shaped medium transporting step, when the folded sheet-shaped medium is Z-folded as a predetermined format, the folded sheet-shaped medium is transported using the second transport path. May be a feature.

  The recording medium of the present invention stores a program for causing a computer to execute the post-processing method of the present invention.

  According to the present invention, the next sheet-like medium to be conveyed waits between the time when folding is performed on a predetermined sheet-like medium and the time when the sheet-like medium is conveyed to the stapling means after the folding is finished. It is possible to prevent a decrease in productivity caused by doing so.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a diagram showing a configuration of an image processing system according to an embodiment of the present invention. The image processing system according to this embodiment includes a copying machine 1 and two post-processing devices (post-processing systems) 2 and 3. The two post-processing devices 2 and 3 are arranged on the downstream side of the copying machine 1. As an example, the post-processing device 3 is a folding device that folds a sheet-like medium (transfer paper, paper) discharged from the copying machine 1 into a predetermined format. Here, as an example, Z-folding is used. The post-processing device 2 is a stapling device that staples the sheet-like medium discharged from the post-processing device 2 into a predetermined format. The post-processing devices 2 and 3 are an embodiment of the present invention. In the description of the present embodiment described below, the post-processing devices 2 and 3 will be described by way of example as shown in FIG. 1, but one post-processing device ( A post-processing system).

  The transfer paper discharged from the copying machine main body 1 is carried into the inlet guide plate 501 of the post-processing device 3 and is transported into the post-processing device 3 by the transport roller. The transfer paper carried into the post-processing device 3 is branched by a branching claw 503 into a straight conveyance path or a transfer paper folding conveyance path.

  The transfer paper carried into the straight conveyance path is conveyed to the post-processing device 2 by the conveyance roller.

  The transfer sheet carried into the transfer sheet folding conveyance path passes through the folding conveyance path 530 and is conveyed to the first folding unit 520, where the first folding is performed. In the case of the end by the first folding, the branch pawl 510 passes through the transport path 531, the branch pawl 511 transports to the transport path 534 that is the first transport path, joins the straight transport path, and the post-processing device 2. It is conveyed to.

  When the transfer sheet that has been folded for the first time is further folded, it passes through the transport path 532 by the branching claw 510 and is transported to the second folding unit 521 for the second folding. Thereafter, after the second folding, the transfer paper passes through the transport path 533, and passes through the transport path 534 that is the first transport path or the transport path 535 that is the second transport path by the branching claw 511. It is conveyed to the post-processing device 2.

  The transfer paper transported from the straight transport path of the post-processing device 3 is transported into the inlet guide plate 201 of the post-processing device 2 and transported into the post-processing device 2 by the transport rollers 202 and 203. The transfer paper carried into the post-processing apparatus 2 is branched to the sort conveyance path or the staple conveyance path by the branch claw 204.

  The transfer paper carried into the sort conveyance path is discharged to the stacking tray 301 by the conveyance roller 205 and the paper discharge roller 211. At the time of discharge, an operation of returning the stacking tray 301 to the end fence side by the return drive roller 452 is performed.

  The transfer paper carried into the staple conveyance path passes through the pre-stack unit 455, passes through the staple sensor 472, and is discharged onto the staple tray 402 by the staple discharge roller 209. Thereafter, the transfer paper is dropped onto the reference fence 421 by the tapping roller 210 and the tip stopper 454 and then aligned by the jogger fence 422. Then, the transfer paper is bound to a desired position by the stapler 401 and discharged to the stacking tray 301 by the discharge claw 471 and the paper discharge roller 211.

  Next, the pre-stack conveyance control will be described with reference to FIGS. FIG. 2 is a diagram illustrating a configuration of the prestack unit 455. In FIG. 4, “Y” indicates “YES” and “N” indicates “NO” (the same applies to FIGS. 5 to 7).

  The first sheet (first transfer sheet) of the section passes through an entrance sensor (not shown) (S4-1 / Y), moves a predetermined distance, and then transports it to the staple transport path side. The branch claw 204 is switched by the switching motor. Thereafter, the transfer paper is further conveyed by a predetermined distance (S4-2 / Y). Here, since the transfer sheet is the first sheet (S4-3 / Y), the pre-stack branch claw 310 is switched by a branch claw switching motor (not shown) (S4-4), and the transfer sheet is transferred to the first conveyance path ( Lead to the rightmost route). When the transfer paper is further conveyed by a predetermined distance (S4-5 / Y), the transfer paper reaches the stop position. When the transfer paper reaches the stop position, the drive roller 317 is stopped and the transfer paper is stopped (S4-6).

  The second sheet (second transfer sheet) passes through an entrance sensor (not shown) (S4-1 / Y) and moves a predetermined distance (S4-2 / Y). Here, since the transfer sheet is the second sheet (S4-3 / N, S4-7 / Y), the prestack branch claw 310 is switched by a branch claw switching motor (not shown) (S4-8), and the transfer sheet is transferred. To the second transport path (center route). The transfer paper is conveyed as it is, and is conveyed to a detection unit 341 that detects the stop position. When the stop position is detected (S4-9 / Y), the conveying pressure of the driving roller 318 is released (S4-10). As for the conveyance pressure, the driving roller may be released directly, or the conveyance pressure of the guide plate 330 itself may be released.

  The third sheet (third transfer sheet) passes through an inlet sensor (not shown) (S4-1 / Y) and moves a predetermined distance (S4-2 / Y). Here, since the transfer sheet is the third sheet (S4-3 / N, S4-7 / N), the pre-stack branch claw 310 is switched by a branch claw switching motor (not shown) (S4-11), Guide to the transport path (the leftmost route). The transfer sheet is conveyed as it is, and is conveyed to the detection unit 340 that detects the position of the transfer sheet by the driving roller 312. When the position of the transfer paper is detected (S4-12 / Y), since there is the first transfer paper in the first transport path (S4-13 / Y), the driving roller is driven by a drive motor (not shown) in the first transport path. To start the movement of the first transfer paper on the first transport path (S4-14). At the same time, the conveyance pressure of the second conveyance path is turned ON, and the movement of the second transfer paper on the second conveyance path is started (S4-15). All the transfer sheets are synchronized and conveyed to the staple tray 402 by the drive roller 314 and the staple roller 209 for driving to the staple tray 402 (S4-16 / Y).

  In addition, about the 4th sheet | seat after a part, it becomes as follows. That is, the even-numbered transfer sheet is the same as the process (S4-7 / Y to S4-10) for the second transfer sheet described above, and the odd-numbered transfer sheet is the third sheet described above. This is the same as the processing for the transfer paper (S4-7 / N to S4-16). Therefore, the description here is omitted.

  Next, a configuration example of a control circuit (control unit) of the post-processing device 2 of the present embodiment will be described with reference to FIG.

  In FIG. 3, the control circuit (an example of a control unit) basically includes a CPU (Central Processing Unit) 702 and an I / O 701. In this configuration, signals from each sensor and each switch in the post-processing device 2 are input to the CPU 702 via the I / O interface 701. The CPU 702 includes a drive motor 703 for rotating the return drive roller 452 according to the input signal, a vertical motor 704 for moving the shift tray (stacking tray) 301 up and down, a shift motor 620 for shifting the shift tray 301, a branch claw 204, a solenoid 705 for switching operation 204, a tatoo solenoid 706 for driving the tacho roller 210, a transport motor 707 for driving the transport rollers (transport rollers) 203 and 205, a staple roller 209, and the like, and a discharge roller (discharge roller) 211. A discharge motor 708 that drives the stapler 401, a discharge motor 710 that drives a discharge belt (not shown) for feeding the paper on the staple tray 402, and a stapler for adjusting the binding position of the paper. 401 to move 401 Driving the Pura moving motor 711 and the jogger fences 422. The CPU 701 further controls driving of a punch drive motor 713 that performs punch processing.

  The control performed by the control circuit shown in FIG. 3 is not limited to the one described above. For example, the control circuit controls various devices (for example, the prestack unit 455) in the post-processing apparatus 2 so as to perform the processing operations shown in the flowcharts of FIGS. 4, 6, and 7. For example, the CPU 702 reads a program stored in advance in a program storage unit (not shown) and expands it in a predetermined storage area. The CPU 702 is controlled according to the program, and executes various processing operations shown in the flowcharts of FIGS. 4, 6, and 7 in the post-processing device 2, for example. The basic configuration of the post-processing device 3 is also shown in FIG. Then, the CPU (not shown) of the post-processing device 3 executes, for example, the processing operation shown in the flowchart of FIG.

Next, conveyance control when stapling is performed will be described. As an example, the following paper passing pattern will be described.
Paper passing pattern: A4 horizontal + A3 vertical Z-fold mixed loading mode Mixed loading pattern: A4 horizontal 3 sheets + A3 vertical Z-fold 1 sheet + A4 horizontal 5 sheets

  When the transfer paper is conveyed from the copying machine main body 1 to the post-processing device 3, before the transfer paper is carried into the post-processing device 3, the copying machine 1 determines the size of the transfer paper, the transfer paper management number, the staple Transfer paper information (paper information) such as the presence or absence of transfer paper, the binding order of transfer paper, and the presence or absence of Z-folding is notified to the CPU of the post-processing device 3. Similarly, when transfer paper is conveyed from the post-processing device 3 to the post-processing device 2, the post-processing device 3 notifies the CPU of the post-processing device 2 of the transfer paper information (paper information) before the transfer paper is carried in. To do. This transfer paper information is not necessarily the same as the content notified from the copying machine 1 to the post-processing device 3.

  The timing at which the post-processing device 3 notifies the post-processing device 2 of the transfer paper information is when the transfer paper is discharged without being Z-folded, or when the leading edge of the transfer paper reaches the first paper discharge sensor 508. The CPU of the post-processing device 3 is notified. Similarly, when the transfer paper is Z-folded and discharged, the CPU of the post-processing device 3 is notified when the leading edge of the transfer paper reaches the second paper discharge sensor 509. Further, the timing for determining the transfer sheet information is determined in the post-processing device 3 when the leading edge of the transfer sheet conveyed from the copying machine 1 reaches the entrance sensor 507. Similarly, in the post-processing apparatus 2, the transfer paper conveyed from the post-processing apparatus 3 is conveyed from the post-processing apparatus 3 when the leading edge of the transfer paper reaches the first inlet sensor 241 or when the transfer paper is Z-folded paper. It is determined when the leading edge of the incoming transfer paper reaches the second entrance sensor 304.

  Next, processing in the post-processing device 3 will be described below with reference to the flowchart of FIG. A CPU (not shown) in the post-processing device 3 is controlled according to the read program to execute the following processing.

  The conveyance of the first transfer paper that is the first transfer paper will be described. When the first transfer paper (A4 landscape) is conveyed from the copying machine 1 to the post-processing device 3, the copying machine 1 transmits the transfer paper information of the first transfer paper to the post-processing device 3 at the timing described above. The post-processing device 3 receives the transfer paper information (S5-1 / Y), and when the leading edge of the first transfer paper passes through the entrance guide plate 501 and reaches the entrance sensor 507 (S5-2 / Y). ), Transfer sheet information is determined (S5-3).

  At this time, based on the transfer sheet information, it is determined whether the first transfer sheet is Z-folded (S5-4) and whether the first transfer sheet is Z-foldable (S5-5).

  As a result of the determination, if Z-folding is present (S5-4 / Y) and the size is Z-foldable (S5-5 / Y), it is guided to the folding conveyance path 530 and the first folding unit 520. Next, the branching claw 503 is operated by a stepping motor or an electromagnetic solenoid (not shown) (S5-6).

  On the other hand, as a result of the determination, there is no Z-folding (S5-4 / N), or there is Z-folding (S5-4 / Y) but the size is not Z-foldable (S5-5 / N). Then, the branching claw 503 is operated by a stepping motor or an electromagnetic solenoid (not shown) so as to lead to the straight conveyance path which is a non-folded part (S5-19). Thereafter, the first transfer paper is conveyed to the first paper discharge sensor 508 by a conveyance roller. When the first transfer paper reaches the first paper discharge sensor 508 (S5-20 / Y), the post-processing device 3 notifies the transfer paper information of the first transfer paper to the post-processing device 2 which is a downstream machine. (S5-21).

  Thus, in the description here, as an example, since the first transfer paper is A4 landscape size and cannot be Z-folded (S5-5 / N), the first transfer paper is folded and conveyed. It is assumed that the sheet is conveyed to the post-processing apparatus 2 through the straight conveyance path which is a non-folded part without going to the path 530 (S5-19 to S5-21).

  The conveyance of the second transfer paper that is the second transfer paper will be described. When the second transfer paper (vertical A3) is conveyed from the copying machine 1 to the post-processing device 3, the copying machine 1 transmits the transfer paper information of the second transfer paper to the post-processing device 3 at the timing described above. The post-processing device 3 receives the transfer sheet information of the second transfer sheet (S5-1 / Y), and when the leading edge of the second transfer sheet passes through the inlet guide plate 501 and reaches the inlet sensor 507 ( (S5-2 / Y), transfer paper information is determined (S5-3).

  At that time, as in the case of the first transfer paper described above, based on the transfer paper information, whether or not the second transfer paper is Z-folded (S5-4), is the second transfer paper sized to be Z-foldable? Is determined (S5-5).

  In the description here, as an example, the second transfer paper has an A3 vertical size and can be Z-folded (S5-5 / Y), so the second transfer paper has the folding conveyance path 530 and the first transfer paper. It is assumed that the sheet is conveyed to the folding unit 520.

  Therefore, the branching claw 503 is operated by a stepping motor or an electromagnetic solenoid (not shown) so as to guide the second transfer paper to the folding conveyance path 530 and the first folding unit 520 (S5-6).

  Then, after the first transfer paper passes through the first paper discharge sensor 508, the post-processing device 3 sends the second transfer paper to the CPU of the post-processing device 2 as preceding information of the transfer paper information of the second transfer paper. It is notified that it is Z-folded paper (conveyed along the second conveyance path 535) (S5-7). The preceding information is notified to the post-processing device 2 only when the second transfer paper is Z-fold paper. This notification may be performed when a detection unit (not shown) arranged on the folding conveyance path 530 detects the second transfer paper. Alternatively, the entrance sensor 507 may make this notification. Or you may make it CPU of post-processing apparatus 3 which is not illustrated perform this notification.

  When the second transfer paper passes through the folding conveyance path 530 and reaches the first folding section 520 (S5-8 / Y), the first folding section 520 performs the first folding (S5-9). . When the first folding is finished (S5-10), the branching claw 510 is operated by a stepping motor or an electromagnetic solenoid (not shown) so as to be guided to the second folding part 521 (S5-11).

  When the second transfer paper passes through the conveyance path 532 and reaches the second folding part 521 (S5-12 / Y), the second folding part 521 performs the second folding (S5-13). When the second folding is finished (S5-14 / Y), the Z folding is finished, and the second transfer paper passes through the conveyance path 533. Here, the post-processing device 3 determines whether or not the staple mode is set (whether or not the transfer sheet is a target of the staple process) (S5-15).

  If it is determined that the staple mode is selected (S5-15 / Y), a stepping motor or an electromagnetic solenoid (not shown) is used to guide the second transfer sheet to the second transport path 535 that is shorter than the first transport path 534. The branch claw 511 is operated (S5-16). The second transfer paper is conveyed to the second paper discharge sensor 509 by the conveyance roller 505. When the second transfer paper arrives at the second paper discharge sensor 509 (S5-17 / Y), the post-processing device 3 notifies the transfer paper information of the second transfer paper to the post-processing device 2 which is a downstream device. (S5-18).

  On the other hand, if the result of determination is not the staple mode (S5-15 / N), the branch claw 511 is operated by a stepping motor or an electromagnetic solenoid (not shown) so as to guide the second transfer paper to the first transport path 534. (S5-22). The second transfer paper is conveyed to the first paper discharge sensor 508 by a conveyance roller. When the second transfer paper reaches the first paper discharge sensor 501 (S5-23 / Y), the post-processing device 3 notifies the post-processing device 2 that is a downstream device of the paper information of the second transfer paper. (S5-24).

  In this description, as an example, it is assumed that the second transfer paper is a staple target (S5-15 / Y), and the second transfer paper is transported to the second transport path 535.

  The conveyance of the third transfer sheet, which is the third transfer sheet, will be described. When the third transfer paper (A4 landscape) is conveyed from the copying machine 1 to the post-processing device 3, the copying machine 1 transmits the transfer paper information of the third transfer paper to the post-processing device 3 at the timing described above. The post-processing device 3 receives the transfer paper information of the third transfer paper (S5-1 / Y), and when the leading edge of the third transfer paper passes through the inlet guide plate 501 and reaches the inlet sensor 507 (S5). -2 / Y), transfer paper information is determined (S5-3).

  At that time, as in the case of the first and second transfer sheets described above, based on the transfer sheet information, the presence or absence of the Z-fold of the third transfer sheet (S5-4), the size of the third transfer sheet that can be Z-folded Is determined (S5-5).

  In the description here, as an example, since the third transfer sheet is A4 landscape size and cannot be Z-folded (S5-5 / N), the third transfer sheet is not transferred to the folding conveyance path 530. Suppose that it is conveyed to the straight conveyance path | route which is a non-folding part, without going.

  Therefore, the branching claw 503 is operated by a stepping motor or an electromagnetic solenoid (not shown) so as to guide the third transfer paper to the straight conveyance path (S5-19).

  The third transfer paper is conveyed to the first paper discharge sensor 508 by a conveyance roller. When the third transfer paper reaches the first paper discharge sensor 508 (S5-20 / Y), the post-processing device 3 notifies the post-processing device 2 as a downstream device of the transfer paper information of the third transfer paper. (S5-21).

  The operations of the fourth transfer sheet (A4 landscape) and the fifth transfer sheet (A4 landscape), which are the fourth and fifth transfer sheets, are the same as those of the third transfer sheet described above. Omitted.

  As described above, the sheet interval from the first transfer sheet to the fifth transfer sheet (from the rear end of the previous transfer sheet to the front end of the next transfer sheet) is conveyed from the copying machine 1 to the post-processing device 3 at an extremely short interval. Come.

  Next, processing in the post-processing device 2 will be described below with reference to the flowcharts of FIGS. The CPU 702 in the post-processing device 2 executes the following processing by being controlled according to the read program.

  The first transfer paper is conveyed from the post-processing device 3 to the post-processing device 2. The post-processing device 2 receives the transfer sheet information of the first transfer sheet (S6-1 / Y), and when the leading edge of the first transfer sheet reaches the first inlet sensor 241 after passing through the inlet guide plate 201 (S6-2 / Y), transfer paper information is determined (S6-3).

  Here, the post-processing device 2 determines whether or not the staple mode is set (S6-4).

  If the result of determination is not the staple mode (S6-4 / N), the branching claw 204 is operated by a stepping motor or electromagnetic solenoid (not shown) so as to guide the first transfer paper to the stacking tray (shift tray) 301 ( S6-5). The first transfer paper is conveyed on the sort conveyance path by the conveyance rollers 205 and 206, and is discharged to the stacking tray 301 by the discharge roller 211 (S6-6).

  In the description here, it is assumed that the first transfer paper is to be stapled (S6-4 / Y), and the branch claw 204 is moved by a stepping motor or an electromagnetic solenoid (not shown) so as to guide the first transfer paper to the staple tray 402. Operate (S6-7). In FIG. 1, the first transport path 534 illustrated in the post-processing apparatus 3 continues not only in the post-processing apparatus 3 but also in the post-processing apparatus 2. That is, the first conveyance path 534 in the post-processing apparatus 2 is from the entrance guide plate 201 to the staple tray 402 through the prestack unit 455. Therefore, the prestack unit 455 exists on the first conveyance path 534.

  After the first transfer paper is carried into the post-processing device 2, as an example, the post-processing device 2 post-processes the preceding information of the transfer paper information of the second transfer paper as described in S5-7 of FIG. Receive from device 3. The preceding information includes information that the next second transfer sheet is a Z-fold sheet. Based on the preceding information, the post-processing device 2 determines whether or not the second transfer sheet that is the next sheet of the first transfer sheet is a Z-folded sheet (S6-8). Note that the “next sheet” in this specification refers to a transfer sheet conveyed next to the transfer sheet. The “front sheet” is a transfer sheet conveyed in front of the transfer sheet.

  In the description here, as an example, the second transfer sheet that is the next sheet of the first transfer sheet is a Z-folded sheet (S6-8 / Y), so the post-processing device 2 is stacked on the prestack unit 455. It is determined whether or not there is transfer paper (S6-9).

  In the description here, it is assumed that there is no transfer paper in the prestack unit 455 as an example (S6-9 / N). Therefore, the first transfer paper is conveyed to the staple tray 402 without stopping anywhere on the conveyance path (S6-23). The first transfer paper transported to the staple tray 402 is aligned in the transport direction by a leading end stopper 454 that aligns the transfer paper transport direction, and the transfer jog 422 aligns the transfer paper in the transport width direction.

  For example, when a transfer sheet having the same size as the first transfer sheet is inserted between the first transfer sheet and the second transfer sheet (S6-9 / Y), the first transfer sheet is stored in the prestack unit 455. Then, the process waits until the next sheet reaches a point where conveyance starts in synchronization with the first transfer sheet. When the next sheet reaches the point (S6-10 / Y), the first transfer sheet and the next sheet are controlled to be conveyed to the staple tray 402 in synchronization (S6-11, S6-23). ).

  Since the post-processing device 2 has received the preceding information of the transfer sheet information of the second transfer sheet, it can be recognized that the second transfer sheet takes more time than the transfer sheet that does not perform the Z-fold because the second transfer sheet performs the Z-fold. . Therefore, prior to the conveyance of the second transfer paper to the post-processing device 2, the conveyance of the transfer paper following the second transfer paper to the post-processing device 2 and the stacking to the prestack unit 455 are started. That is, the third transfer paper is conveyed from the post-processing device 3 to the post-processing device 2 while the second transfer paper is Z-folded. Since the third transfer paper is not Z-folded, the third transfer paper is conveyed along the first conveyance path 534. The post-processing device 2 receives the transfer sheet information of the third transfer sheet (S6-1 / Y), and when the leading edge of the third transfer sheet reaches the first inlet sensor 241 after passing through the inlet guide plate 201 (S6-2 / Y), the paper information is determined (S6-3). Here, the post-processing device 2 determines whether or not the staple mode is set (S6-4).

  In this description, it is assumed that the third transfer paper is a staple target (S6-4 / Y), and the branch claw 204 is moved by a stepping motor or an electromagnetic solenoid (not shown) so as to guide the third transfer paper to the staple tray 402. Operate (S6-7). As described above, the fourth transfer paper that is the next paper of the third transfer paper is not Z-folded (S6-8 / N), and the third transfer paper has a staple request (S6-12 / Y). . At this time, there is no transfer paper stacked on the prestack unit 455 (S6-13 / N), and as described above, the first transfer paper is discharged to the staple tray 402 and aligned (staple tray stack). Is operating (S6-17 / Y).

  Here, for example, the transfer sheet information of the third transfer sheet includes information that the binding order No. of the third transfer sheet is “3”, and the first transfer sheet in the staple tray 402 is included. This transfer sheet information includes information that the binding order No of the first transfer sheet is “1”. From these contents, the post-processing device 2 knows that the transfer paper whose binding order No is “2” has not yet been conveyed to the post-processing device 2.

  Therefore, the third transfer sheet is not conveyed to the staple tray 402 but is conveyed to the first conveyance path (the rightmost route) in the prestack unit 455. Then, the post-processing device 2 stops the conveyance of the third transfer paper by stopping the driving roller 317 and the conveyance rollers 314 and 315. As a result, the third transfer paper is stacked on the pre-stack unit 455 (S6-18). The drive roller 317 is driven in the prestack unit 455 and is driven separately from the transport motor for transporting the transfer paper onto the first transport path 534. Note that after this stacking, the first transfer paper alignment operation (staple tray stack) in the staple tray 402 ends (S6-19 / N).

  After the third transfer paper is stacked, there are the following three types, and each case will be described.

[First case]
A case where the second transfer paper is first conveyed to the post-processing device 2 will be described. The Z-folded second transfer paper is conveyed from the post-processing device 3 to the post-processing device 2. Since the second transfer sheet is Z-folded, it is conveyed along the second conveyance path 535. The post-processing device 2 receives the transfer sheet information of the second transfer sheet (S7-1 / Y), and reaches the second inlet sensor 304 after the leading edge of the second transfer sheet passes through the inlet guide plate 300. (S7-2 / Y), transfer sheet information is determined (S7-3). In FIG. 1, the second transport path 535 illustrated in the post-processing apparatus 3 continues not only in the post-processing apparatus 3 but also in the post-processing apparatus 2. That is, the first conveyance path 535 in the post-processing apparatus 2 is from the inlet guide plate 300 to a point where the first conveyance path 534 joins downstream of the prestack unit 455.

  Here, as described above, since the third transfer paper is present in the first transport path of the pre-stack unit 455 (S7-4 / Y), the detection unit (not shown) present on the second transport path 535 is present. (Same function as the detection unit 340) detects whether the second transfer paper has been transported to a predetermined point on the second transport path 535 (S7-5). This detection may be detection of the second transfer paper by the second entrance sensor 304.

  When the second transfer sheet is detected (S7-5 / Y), the conveyance of the third transfer sheet that has been conveyed to the post-processing apparatus 2 and stopped in the first conveyance path of the prestack unit 455 is started. (S7-6, S6-20). The second transfer paper enters the first transport path 534 downstream of the prestack unit 455. At this time, the second transfer paper and the third transfer paper are in a state of being overlapped in synchronization. When taking this synchronization, the second transfer sheet may be temporarily stopped. Then, the second transfer paper and the third transfer paper are conveyed to the staple tray 402 through the first conveyance path 534 by the conveyance rollers 302 and 303 and the staple roller 209 (S7-7, S6-21). .

  After the second transfer paper and the third transfer paper are conveyed to the staple tray 402, the second transfer paper and the third transfer paper are aligned by a paper alignment operation in the same manner as the first transfer paper.

  The fourth transfer paper is transported through the first transport path 534, and, like the third transfer paper, waits until the fifth transfer paper is transported by the prestack unit 455, and the fifth transfer paper The sheets are conveyed to the staple tray 402 in a state of being overlapped in synchronization. After being conveyed to the staple tray 402, a sheet aligning operation is performed in the same manner as the first transfer sheet. When the fifth transfer sheet is the final sheet of the set, stapling is performed. That is, binding is performed by the stapler 401, and the bound bundle is discharged to the stacking tray (shift tray) 301 that is a discharge tray by the discharge claw 471.

[Second case]
A case where the fourth transfer paper is first conveyed to the post-processing device 2 will be described. The fourth transfer paper is conveyed from the post-processing device 3 to the post-processing device 2. Since the fourth transfer paper is not Z-folded, it is conveyed through the first conveyance path 534. The post-processing device 2 receives the transfer sheet information of the fourth transfer sheet (S6-1 / Y), and reaches the first inlet sensor 241 after the leading edge of the fourth transfer sheet passes through the inlet guide plate 201. (S6-2 / Y), transfer paper information is determined (S6-3). Here, the post-processing device 2 determines whether or not the staple mode is set (S6-4).

  In the description here, it is assumed that the fourth transfer paper is to be stapled (S6-4 / Y), and the branch claw 204 is moved by a stepping motor or an electromagnetic solenoid (not shown) so as to guide the fourth transfer paper to the staple tray 402. Operate (S6-7). For example, the fifth transfer paper that is the next paper of the fourth transfer paper is not Z-folded as described above (S6-8 / N), and the fourth transfer paper has a staple request (S6-12). / Y).

  Here, for example, the transfer sheet information of the fourth transfer sheet includes information that the binding order No. of the fourth transfer sheet is “4”, and the preceding third transfer sheet is a prestack portion. In 455, the second transfer paper is awaited (S6-13 / Y).

  Therefore, the fourth transfer paper is not transported to the staple tray 402 but is transported to the first transport path (the rightmost route) of the prestack unit 455. Then, the post-processing device 2 stops the conveyance of the fourth transfer paper by stopping the driving roller 317 and the conveyance rollers 314 and 315 (not shown in the flow).

  Thereafter, in the post-processing apparatus 2, it is assumed that the Z-folded second transfer paper is conveyed through the second conveyance path 535 prior to the fifth transfer paper. The post-processing device 2 receives the paper information of the second transfer paper (S7-1 / Y), and reaches the second inlet sensor 304 after the leading edge of the second transfer paper passes through the inlet guide plate 301 ( (S7-2 / Y), transfer paper information is determined (S7-3).

  Here, as described above, since the third transfer paper and the fourth transfer paper are present in the first transport path of the prestack unit 455 (S7-4 / Y), they are present on the second transport path 535. The detection unit (not shown) (the same function as the detection unit 340) detects whether the second transfer paper has been conveyed to a predetermined point on the second conveyance path 535 (S7-5). This detection may be detection of the second transfer paper by the second entrance sensor 304.

  When the second transfer paper is detected (S7-5 / Y, S6-14 / Y), the third transfer paper is first transported to the post-processing device 2 and stopped in the first transport path of the prestack unit 455. The transfer paper and the fourth transfer paper are started to be conveyed (S7-6, S6-15). The second transfer paper enters the first transport path 534 downstream of the pre-stack unit 455. At this time, the second transfer paper, the third transfer paper, and the fourth transfer paper are overlapped in synchronization. It becomes a state. When synchronizing, the second transfer paper may be temporarily stopped. Then, the second transfer paper, the third transfer paper, and the fourth transfer paper are transported to the staple tray 402 through the first transport path 534 by the transport rollers 302 and 303 and the staple roller 209 (S7). -7, S6-16).

  After the second transfer paper, the third transfer paper, and the fourth transfer paper are conveyed to the staple tray 402, they are aligned by a paper alignment operation in the same manner as the first transfer paper.

  Note that the fifth transfer paper needs to be transported to the staple tray 402 after the second transfer paper, the third transfer paper, and the fourth transfer paper have been aligned on the staple tray 402. Accordingly, the post-processing device 2 performs the same processing as S6-1 / Y to S6-17 / Y, and then stacks the fifth transfer paper on the prestack unit 455 (S6-18), and the alignment operation is completed. At this timing (S6-19 / N), the sheet is conveyed to the staple tray 402 (S6-20, S6-21). After the fifth transfer paper is also transported to the staple tray 402, it is aligned by a paper alignment operation in the same manner as the first to fourth transfer papers. When the fifth transfer sheet is the final sheet of the set, stapling is performed. That is, binding is performed by the stapler 401, and the bound bundle is discharged to the stacking tray (shift tray) 301 that is a discharge tray by the discharge claw 471.

[Third case]
This case is the same as the second case described above. That is, in the post-processing apparatus 2, after the third transfer paper and the fourth transfer paper are stacked on the prestack unit 455 before the second transfer paper is conveyed, the fifth transfer paper is moved to the first transfer paper before the second transfer paper. It is assumed that the sheet is conveyed through one conveyance path 534.

  The post-processing device 2 receives the paper information of the fifth transfer paper (S7-1 / Y), and when the front end of the fifth transfer paper passes through the inlet guide plate 201 and reaches the first inlet sensor 241 ( (S6-2 / Y), transfer paper information is determined (S6-3). Here, the post-processing device 2 determines whether or not the staple mode is set (S6-4).

  In the description here, it is assumed that the fifth transfer paper is to be stapled (S6-4 / Y), and the branch claw 204 is moved by a stepping motor or an electromagnetic solenoid (not shown) so as to guide the fifth transfer paper to the staple tray 402. Operate (S6-7). Since there is no next sheet after the fifth transfer sheet, Z-folding is not performed (S6-8 / N), and the fifth transfer sheet has a staple request (S6-12 / Y).

  Here, for example, the transfer sheet information of the fifth transfer sheet includes information that the binding order No. of the fifth transfer sheet is “5”, and the preceding third transfer sheet and fourth transfer are included. The paper is waiting for the second transfer paper at the prestack unit 455 (S6-13 / Y).

  Therefore, the fifth transfer sheet is not transported to the staple tray 402 but is transported to the first transport path (the rightmost route) of the prestack unit 455. Then, the post-processing device 2 stops the conveyance of the fifth transfer paper by stopping the driving roller 317 and the conveyance rollers 314 and 315 (not shown in the flow).

  Thereafter, the Z-folded second transfer paper is transported from the post-processing device 3 to the post-processing device 2 through the second transport path 535. The post-processing device 2 receives the transfer sheet information of the second transfer sheet (S7-1 / Y), and when the leading edge of the second transfer sheet passes through the inlet guide plate 301 and reaches the second inlet sensor 304 (S7-2 / Y), transfer paper information is determined (S7-3).

  Here, as described above, since the third transfer paper, the fourth transfer paper, and the fifth transfer paper are present in the first transport path of the prestack unit 455 (S7-4 / Y), the second transport paper is used. A detection unit (not shown) on the path 535 (same function as the detection unit 340) detects whether the second transfer paper has been transported to a predetermined point on the second transport path 535 (S7-5). This detection may be detection of the second transfer paper by the second entrance sensor 304.

  When the second transfer paper is detected (S7-5 / Y, S6-14 / Y), the third transfer paper is first transported to the post-processing device 2 and stopped in the first transport path of the prestack unit 455. The transfer paper, the fourth transfer paper, and the fifth transfer paper are started to be conveyed (S7-6, S6-15). The second transfer paper enters the first transport path 534 downstream of the prestack unit 455. At this time, the second transfer paper and the third transfer paper, the fourth transfer paper, and the fifth transfer paper are synchronized. And become superposed. When synchronizing, the second transfer paper may be temporarily stopped. Then, the second transfer paper, the third transfer paper, the fourth transfer paper, and the fifth transfer paper pass through the first transport path 534 to the staple tray 402 by the transport rollers 302 and 303 and the staple roller 209. It is conveyed (S7-7, S6-16).

  After the second transfer paper, the third transfer paper, the fourth transfer paper, and the fifth transfer paper are conveyed to the staple tray 402, they are aligned by a paper alignment operation in the same manner as the first transfer paper. Since the fifth transfer sheet is the final sheet of the copy, stapling is performed. That is, binding is performed by the stapler 401, and the bound bundle is discharged to the stacking tray (shift tray) 301 that is a discharge tray by the discharge claw 471.

  As described above, in this embodiment, the second transfer paper that is Z-folded until the second transfer paper is conveyed to the post-processing device 2 (for example, the third to fifth transfer sheets). Paper) is conveyed to the post-processing device 2 before the second transfer paper through the first conveyance path. Then, the succeeding transfer paper stands by in the prestack unit 455 that is disposed immediately before the staple tray on the first transport path. Then, the Z-folded second transfer paper is transported on the second transport path that joins the first transport path on the downstream side of the prestack unit 455. When the second transfer sheet is conveyed to a predetermined point on the second conveyance path, the subsequent transfer sheet waiting in the pre-stack unit 455 and the second transfer sheet are synchronized with each other to perform the first conveyance. The paper passes through the path 534 and is conveyed to the staple tray 402. This eliminates the need for the next transfer sheet conveyed next to wait between the time when the second transfer sheet is Z-folded and the time when the Z-folded second transfer sheet is conveyed to the staple tray 402. Since the stapling process can be advanced, it is possible to prevent a decrease in productivity.

  In the present embodiment, the binding sheet No. is included in the transfer sheet information of the first transfer sheet to the fifth transfer sheet sent from the post-processing apparatus 3 to the post-processing apparatus 2. The transfer sheet subsequent to the second transfer sheet waits in the prestack unit 455 until the second transfer sheet is carried into the post-processing device 2 based on the above-described binding order No. be able to. Then, the second transfer paper and the subsequent transfer paper that has been stacked are overlapped in the first transport path 534 based on the respective binding orders No. Therefore, out of order at the time of stapling occurs. Can be prevented in advance.

  In this embodiment, since the transfer sheet subsequent to the second transfer sheet is controlled to be carried into the staple tray 402 in synchronization with the second transfer sheet, the alignment system after being stapled by the stapler 401 is controlled. Decline can be prevented.

  Further, in the present embodiment, when the transfer paper is put on standby in the prestack unit 455, the transfer roller transport is stopped by stopping the driving roller and the transport roller in the prestack unit 455. This is unnecessary and can reduce costs.

  In the present embodiment, the drive roller in the prestack unit 455 is driven separately from the transport motor for transporting the transfer paper onto the first transport path 534, thus preventing a reduction in productivity. it can.

  Further, in the present embodiment, the Z-folded second transfer sheet is temporarily stopped by the prestack unit 455 in the same manner as the waiting transfer sheet, and the second transfer sheet is controlled so as to eliminate skew of the second transfer sheet. This can prevent a decline in the alignment system.

  As mentioned above, although embodiment of this invention was described, it is not limited to the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary.

  For example, each operation (the operation shown in each flowchart) in the above-described embodiment can be executed by hardware, software, or a combined configuration of both.

  When executing processing by software, a program in which a processing sequence is recorded may be installed and executed in a memory in a computer incorporated in dedicated hardware. Or you may install and run a program in the general purpose computer which can perform various processes.

  For example, the program can be recorded in advance on a hard disk or a ROM (Read Only Memory) as a recording medium. Alternatively, the program is temporarily or permanently stored on a removable recording medium such as a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto optical) disc, a DVD (Digital Versatile Disc), a magnetic disc, or a semiconductor memory. It can be stored (recorded). Such a removable recording medium can be provided as so-called package software.

  The program may be wirelessly transferred from the download site to the computer in addition to being installed on the computer from the removable recording medium as described above. Alternatively, the data may be transferred to the computer by a wire via a network such as a LAN (Local Area Network) or the Internet. The computer can receive the transferred program and install it on a recording medium such as a built-in hard disk.

  In addition to being executed in time series in accordance with the processing operations described in the above embodiment, the processing capability of the apparatus that executes the processing, or a configuration to execute in parallel or individually as necessary Is also possible.

  In addition, the system described in the above embodiment can be configured to have a logical set configuration of a plurality of devices or to mix the functions of each device.

1 is a diagram illustrating a configuration of an image processing system according to an embodiment of the present invention. It is a figure which shows the structure of the pre-stack part of the post-processing apparatus (stapling apparatus) which concerns on embodiment of this invention. It is a figure which shows the structure of the control circuit of the post-processing apparatus (stapling apparatus) which concerns on embodiment of this invention. It is a flowchart which shows operation | movement of the pre-stack conveyance control part of the post-processing apparatus (stapling apparatus) which concerns on embodiment of this invention. It is a flowchart which shows the operation example of the post-processing apparatus (folding apparatus) which concerns on embodiment of this invention. It is a flowchart which shows the operation example of the post-processing apparatus (stapling apparatus) which concerns on embodiment of this invention. It is a flowchart which shows the operation example of the post-processing apparatus (stapling apparatus) which concerns on embodiment of this invention.

Explanation of symbols

1 Copying machine 2 Post-processing device (staple device)
3 Post-processing device (folding device)
201 Inlet guide plate 202, 203, 204, 205 Conveying roller 209 Staple roller 210 Tataki roller 211 Discharge roller 241 First inlet sensor 301 Stack tray (shift tray)
302, 303 Conveyance roller 304 Second entrance sensor (an example of detection means)
310 Pre-stack branch claw 312, 314, 317, 318 Drive roller 330 Guide plate 340, 341 Detection unit 401 Stapler (part of stapling means)
402 Staple tray (part of stapling means)
421 Reference fence 422 Jogger fence 452 Return drive roller 454 Tip stopper 455 Prestack part (an example of prestack means)
471 Release claw 472 Staple sensor 501 Entrance guide plate 503 Branch claw 507 Entrance sensor (an example of notification means)
508 First paper discharge sensor 509 Second paper discharge sensor 510 Branch claw 520 First folding portion (part of folding means)
521 Second folding part (part of folding means)
530 Folded conveying path 531, 532, 533 Conveying path 534 First conveying path 535 Second conveying path 620 Shift motor 701 I / O
702 CPU
703 Drive motor 704 Vertical motor 705 Solenoid 706 Tata solenoid 707 Conveyance motor 708 Discharge motor 709 Stapler motor 710 Discharge motor 711 Stapler movement motor 713 Punch motor

Claims (15)

A first transport path for transporting the carried sheet medium;
Prestacking means for stacking a sheet-like medium disposed on the first transport path and transported along the first transport path;
Stapling means for applying a predetermined type of staple to the sheet-like medium conveyed through the first conveying path;
A post-processing system having control means for controlling conveyance of the sheet-like medium,
A path that merges with the first transport path downstream of the pre-stack means, and has a second transport path for transporting the folded sheet-like medium that has been folded in a predetermined format by the folding means;
The control means includes
Subsequent sheet-like medium following the folded sheet-like medium is previously conveyed in the first conveying path and stacked on the prestacking means,
Release the stack by the pre-stacking means at a timing that allows the folded sheet-like medium and the subsequent sheet-like medium to be conveyed together,
A post-processing system that conveys the succeeding sheet-like medium and the folded sheet-like medium to the stapling means. Detecting means for detecting before the folded sheet medium conveyed through the second conveyance path joins the first conveyance path;
The control means includes
Until the folded sheet-like medium is detected by the detecting means, the subsequent sheet-like medium is stacked on the pre-stacking means,
When the folded sheet-like medium is detected by the detecting means, the stack by the pre-stacking means is placed at a timing when the succeeding sheet-like medium and the folded sheet-like medium are overlapped with each other in the first transport path. The post-processing system according to claim 1, wherein the post-processing system is canceled. Notification means for notifying in advance that the folded sheet medium is transported through the second transport path before the folded sheet medium is folded by the folding means;
The control means includes
3. The post-processing system according to claim 1, wherein when the notification is received from the notification unit, the succeeding sheet-like medium is stacked on the pre-stack unit. The control means includes
Receiving in advance binding order information indicating the binding order of the folded sheet-like medium and the subsequent sheet-like medium;
Based on the binding order information, the succeeding sheet-like medium is stacked on the pre-stacking unit, and the succeeding sheet-like medium and the folded sheet-like medium are overlapped on the first transport path. The post-processing system according to any one of claims 1 to 3, wherein the stack by the pre-stacking means is released so as to be in a state. The control means includes
5. The post-processing system according to claim 1, wherein when the stack by the pre-stacking unit is released, the conveyance of the folded sheet-like medium is temporarily stopped. The control means includes
6. The post-processing system according to claim 1, wherein when the folded sheet-shaped medium is Z-folded by the folding unit, the folded sheet-shaped medium is transported along the second transport path. .   The post-processing system according to claim 1, wherein the folding unit, the pre-stacking unit, and the stapling unit are provided in separate apparatuses.   An image processing system comprising the post-processing system according to claim 1. Prestacking means for stacking the sheet-like medium that is arranged on the first conveyance path for conveying the carried sheet-like medium and is conveyed along the first conveyance path, and conveying the first conveyance path A post-processing method performed by a post-processing system having stapling means for applying a predetermined type of staple to a sheet-like medium that has been used,
Before the folded sheet-shaped medium that has been folded in a predetermined format is conveyed, the subsequent sheet-shaped medium following the folded sheet-shaped medium is previously conveyed through the first conveying path and stacked on the pre-stacking means. Stack step to keep,
A folded sheet-shaped medium transporting step for transporting the folded sheet-shaped medium using a second transport path that joins the first transport path downstream of the prestack means;
A stack release step for releasing the stack by the prestack means at a timing at which the folded sheet-like medium and the subsequent sheet-like medium can be conveyed together;
A both-sheet-shaped medium conveying step of conveying the subsequent sheet-shaped medium and the folded sheet-shaped medium to the stapling means;
A post-processing method comprising: In the stack step,
The succeeding sheet-like medium is stacked on the pre-stacking means until the folded sheet-like medium conveyed through the second conveyance path joins the first conveyance path,
In the destacking step,
The pre-stacking means at a timing when the succeeding sheet-like medium and the folded sheet-like medium overlap each other in the first conveying path when the folded sheet-like medium joins the first conveying path. The post-processing method according to claim 9, wherein the stack is released. A notification step for notifying in advance that the folded sheet-shaped medium is transported through the second transport path before the folded sheet-shaped medium is folded in a predetermined format;
In the stack step,
The post-processing method according to claim 9 or 10, wherein when the notification in the notification step is received, the succeeding sheet-like medium is stacked on the pre-stacking means. In the stacking step and the destacking step,
The stack and the stack release are performed based on binding order information indicating each binding order of the folded sheet-like medium and the succeeding sheet-like medium. Post-processing method.   The post-processing method according to claim 9, further comprising a temporary stop step of temporarily stopping the conveyance of the folded sheet-like medium when the stack release step is performed. In the folded sheet medium conveyance step,
14. The folded sheet-like medium is conveyed using a second conveyance path when the folded sheet-like medium is Z-folded as the predetermined format. The post-processing method as described in a term.   15. A recording medium on which a program for causing a computer to execute the post-processing method according to any one of claims 9 to 14 is recorded.

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