JP2013119451A - Image forming system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To freely set positions and the number of creases depending on a post-processing mode and whether or not opening creases exist during printing.SOLUTION: This image forming system 1 includes an image forming device 10, a saddle stitching device 30 as a post-processing device, a punch ring bind device 50, a case binding device 70, and a staple device 90. The saddle stitching device 30 includes a creasing part 36 creasing paper. The image forming device 10 sets crease position information stored in a storage part to be the positions and the number of creases formed by the creasing part 36 with respect to each paper depending on the post-processing mode and whether or not opening creases for easy opening of the paper exist during printing.

Description

  The present invention relates to an image forming system.

  2. Description of the Related Art Conventionally, there has been known an image forming system including an image forming apparatus such as a copying machine that forms an image on a sheet, and a stapling apparatus as a post-processing apparatus that performs stapling processing on a sheet formed by the image forming apparatus. ing.

  2. Description of the Related Art As an image forming system including a stapling apparatus, an image forming system having a forming unit that forms crease lines (grooves) on a sheet by laser beam irradiation or cutting with a cutter is known (for example, see Patent Document 1). This crease line is formed at a position that is easy to open when a sheet bundle bound with staples is opened. Therefore, the user can easily open the sheet bundle by folding the bound sheet bundle along the crease line.

  In addition, as post-processing devices, a punch device that punches holes, a saddle stitch device that performs saddle stitching, a case binding device that performs case binding, and the like are also known.

JP 2008-63123 A

  As the crease line, it is considered that there are an opening line for making the paper easy to open and a back forming line for making it easy to form a back in case binding. In a conventional image forming system for forming a crease line on a sheet, when a post-processing mode as a type of post-processing is staple binding, a single open line is fixedly formed at a fixed position for each sheet. there were.

  For this reason, there has been a request to change the position and number of crease lines depending on the post-processing mode (two-point staple binding, saddle stitching, case binding, etc.) at the time of printing and the presence / absence of an open line.

  An object of the present invention is to freely set the position and the number of crease lines according to the post-processing mode at the time of printing and the presence / absence of opening lines.

In order to solve the above-mentioned problem, the invention described in claim 1
An image forming system comprising: an image forming apparatus that forms an image on a sheet; and at least one post-processing apparatus that performs post-processing on the sheet ejected from the image forming apparatus;
The post-processing device includes:
It has a crease that forms crease lines on the paper,
The image forming apparatus includes:
Stores management information having position information consisting of the position and number of crease lines corresponding to a post-processing mode indicating the type of post-processing of the post-processing apparatus, and whether or not to open a line for easy opening of the sheet. A storage unit to
The crease line position information stored in the storage unit is set to the position and number of crease lines formed by the crease unit for each sheet according to the post-processing mode at the time of printing and the presence or absence of the open line. A control unit.

According to a second aspect of the present invention, in the image forming system according to the first aspect,
It has an operation unit that accepts input of post-processing mode at the time of printing and the presence / absence of open streak,
The control unit displays the position information of the crease line stored in the storage unit according to the post-processing mode input through the operation unit and the presence / absence of the open line, and the crease unit stores the position information for each sheet. The position and number of crease lines to be formed are set.

The invention described in claim 3 is the image forming system according to claim 2,
The operation unit receives input of adjustment information of the management information,
The control unit changes management information stored in the storage unit in accordance with adjustment information input via the operation unit.

According to a fourth aspect of the present invention, in the image forming system according to any one of the first to third aspects,
When the post-processing mode is one of multi-hole punching, ring binding, single-point binding of staples, and saddle stitching of square folds, The crease portion is set not to form crease lines on the paper.

According to a fifth aspect of the present invention, in the image forming system according to the fourth aspect,
The control unit, when the post-processing mode is a combination of the prohibition process and the process that does not become the prohibition process, the crease line stored in the storage unit corresponding to the process that does not become the prohibition process. Position information is set to the position and number of crease lines formed by the crease for each sheet.

  According to the present invention, the position and the number of crease lines can be freely set according to the post-processing mode at the time of printing and the presence / absence of opening lines.

1 is a diagram illustrating a configuration of an image forming system according to an embodiment of the present invention. It is a block diagram which shows the function structure of an image forming apparatus, a saddle stitching apparatus, and a punch ring binding apparatus. It is a block diagram showing a functional configuration of a case binding apparatus and a stapling apparatus. It is a figure which shows the structure of a crease part. It is a figure which shows the structure of muscle management information. (A) is a figure which shows the paper of 2 places binding. (B) is a diagram showing a sheet of 2-hole punch. (C) is a diagram showing a cover sheet and a body sheet in saddle stitching (with SQF). (D) is a diagram showing a cover sheet and a body sheet in case binding. It is a figure which shows the setting screen of 2 places binding. It is a figure which shows the setting screen of 1 place binding. It is a flowchart of a creasing position setting process. 10 is a flowchart subsequent to the creasing position setting process of FIG. 9. It is a flowchart which shows a creasing position adjustment process. It is a figure which shows the adjustment screen of a creasing position adjustment. It is a figure which shows the adjustment screen of the positional information on the crease line | wire in 2 places binding. It is a figure which shows the adjustment screen of the positional information on the crease line in case binding.

  Embodiments according to the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the illustrated example.

  First, with reference to FIGS. 1-4, the apparatus structure of this Embodiment is demonstrated. FIG. 1 is a diagram illustrating a configuration of the image forming system 1.

  The image forming system 1 according to the present embodiment includes an image forming apparatus 10 that forms and records an image on a sheet fed from a sheet feeding unit 22, and post-processing the sheet on which an image is recorded by the image forming apparatus 10. A saddle stitching device 30, a punch ring binding device 50, a case binding device 70, and a stapling device 90 are provided as post-processing devices to be applied. The image forming apparatus 10, the saddle stitching apparatus 30, the punch ring binding apparatus 50, the case binding apparatus 70, and the stapling apparatus 90 are connected in order from upstream to downstream of sheet conveyance.

  The saddle stitching device 30 is a device that performs a saddle stitching process as a post-processing for saddle stitching on the paper ejected from the image forming apparatus 10 and ejects the paper. The punch ring binding device 50 is a punch (piercing) process as a post-process for punching a punched hole in the paper discharged from the saddle stitching apparatus 30, or a post-process for attaching a ring binder to a punch hole formed by the punch process. This is a device that discharges after performing the ring binding process. The case binding device 70 is a device that performs a case binding process as a post-process for case binding on the paper discharged from the punch ring binding device 50 and discharges the paper. The stapling device 90 is a device that performs a stapling process as a post-processing for stapling the paper discharged from the case binding apparatus 70 and discharges the paper.

  The image forming apparatus 10 includes an operation display unit 13, an image forming unit 16, a fixing unit 17, a document conveying unit 18, an image reading unit 19, and a paper feeding unit 22.

  The operation display unit 13 accepts user operation input via a touch panel or the like and displays various display information.

  The image forming unit 16 is, for example, an electrophotographic image forming unit. In the image forming unit 16, a charging unit, an exposure unit, a developing unit, a transfer unit, a separation unit, and a cleaning unit (all not shown) are arranged around a drum-shaped photoconductor. The image forming unit 16 is charged, exposed, and developed by each part of the electrophotographic process to form a toner image on the photoreceptor, and forms an image by transferring the image onto a sheet. The fixing unit 17 includes a heating roller and a pressure roller, and heats and presses the paper on which the image is formed by the image forming unit 16 to fix the toner image on the paper.

  The document transport unit 18 transports the document toward the image reading unit 19. The image reading unit 19 reads an image of the document conveyed by the document conveying unit 18 with a CCD (Charge Coupled Device) or the like, and acquires document image information.

  The paper feed unit 22 has a plurality of paper feed trays. Each paper feed tray stores paper. Each paper feed tray has a different size and type of paper to be stored. When paper is fed, one is selected from the paper feed trays of the paper feed unit 22, and the paper is fed one by one from the selected paper feed tray.

  The saddle stitching device 30 includes a reverse stacking part 35, a crease part 36, a slit part 37, a saddle stitching part 38, an SQF (SQuare Fold) part 39, and a cutting part 40.

  In the reverse stacking unit 35, the sheet discharged from the image forming apparatus 10 and conveyed to the upper portion of the reverse stacking unit 35 slides down to a stopper 35A described later by its own weight and stops. As a result, the plurality of sheets in the reversing and stacking unit 35 are overlapped and aligned in the transport direction, and the transport direction is aligned. Further, the reverse stacking unit 35 performs alignment by lightly striking a sheet with a light striking mechanism with respect to the width of the sheet perpendicular to the transport direction. The reverse stacking unit 35 reverses and discharges the paper accumulated on the stopper 35A.

  The crease part 36 is a functional part for making a crease line on the paper superposed by the reversing and superposing part 35, and will be described in detail later.

  The slit portion 37 cuts the top and bottom of the paper that is overlapped by the reversing overlap portion 35.

  The saddle stitching portion 38 includes a folding portion (not shown) and a saddle stitching staple portion (not shown). The folding part is composed of a sheet ejecting means, a folding roller, a conveyor belt, a pressure roller, and the like. The folding part moves the ejecting plate of the paper ejecting means diagonally upward, pushes up the central part of the paper bundle by the tip part of the ejecting plate, pushes up the nip part of the folding roller through the paper bundle, and swings and separates. Let After the leading end of the ejecting plate passes through the nip portion, the ejecting plate is retracted, and the central portion of the sheet bundle is narrowed by the folding roller to form a fold. Two sets of saddle stitching staple units are arranged in a direction orthogonal to the conveyance direction, and can be moved in a direction orthogonal to the conveyance direction by a driving unit (not shown). The saddle stitching staple unit moves the sheet bundle folded in the middle by the folding unit to a predetermined position, and then staples staples (binding needles) at two central distribution positions in the width direction to bind the sheet bundle.

  The SQF unit 39 has a roller, and with respect to the sheet that is saddle-stitched by the saddle stitching unit 38, the folded portion (back portion) of the sheet is crushed so as to be flat with the roller, and is shaped into a square shape. Perform square fold processing.

  The cutting unit 40 includes a cutting upper blade, a cutting lower blade, a movable plate, a pressing roller, a driving unit, and the like. The cutting unit 40 cuts the edge of the sheet bundle formed by the saddle stitching unit 38 in order to align the edge of the sheet.

  The punch ring binding device 50 includes a punch portion 56 and a ring binding portion 57.

  The punching unit 56 punches (perforates) punch holes such as 2-holes, 3-holes, or more holes having a predetermined shape at predetermined positions on the paper. The punch unit 56 includes, for example, a punch (not shown) that is driven up and down by a motor (not shown) as a drive source, and a die (not shown) that fits the blade part of the punch. In the punch unit 56, the punch is driven up and down by the operation of the motor, and the sheet is punched when the punch penetrates the die.

  The ring binding part 57 attaches a ring binder to the hole of the paper punched by the punch part 56.

  The case binding apparatus 70 includes a case binding unit 75. The case binding unit 75 aligns a plurality of sheets, applies glue, and performs a case binding process with a cover to form a booklet.

  The stapling device 90 includes a stapling unit 95. The staple unit 95 binds the sheet bundle aligned by a stack aligning unit 94, which will be described later, by binding staples (binding needles) at one or two places.

  Further, the saddle stitching device 30 has a sub-tray TR2 as a paper discharge tray. The punch ring binding device 50 has a sub-tray TR3 as a paper discharge tray. The case binding apparatus 70 has a sub-tray TR4 as a paper discharge tray. The stapling device 90 has a main tray TR5 and a sub-tray TR6 as discharge trays.

  Note that the combination of post-processing apparatuses of the image forming system 1 is not limited to the example of FIG.

Next, the functional configuration of each apparatus of the image forming system 1 will be described with reference to FIGS.
FIG. 2 is a block diagram illustrating functional configurations of the image forming apparatus 10, the saddle stitching apparatus 30, and the punch ring binding apparatus 50. FIG. 3 is a block diagram illustrating the functional configuration of the case binding device 70 and the stapling device 90.

  The functional configuration of the image forming apparatus 10 will be described with reference to FIG. The image forming apparatus 10 includes a control unit 11, a communication unit 12, an image information storage unit 14, a nonvolatile storage unit 15, an image forming unit 16, a fixing unit 17, a document transport unit 18, and an image reading unit. 19, a transport unit 20, and a cover identification unit 21.

  The control unit 11 that controls each unit of the image forming apparatus 10 includes a CPU (Central Processing Unit) 11A, a RAM (Random Access Memory) 11B, and a ROM (Read Only Memory) 11C.

  The control unit 11 executes various processes in cooperation with the CPU 11A and the program read from the ROM 11C and expanded in the RAM 11B. The ROM 11C stores a placement position setting program and a placement position adjustment program.

  The communication unit 12 is controlled by the control unit 11 and performs serial communication with the communication unit 32 of the saddle stitching device 30.

  The image information storage unit 14 is controlled by the control unit 11 and input from the original image information input by the image reading unit 19 or from an external device (not shown) such as a PC (Personal Computer) connected to the image forming apparatus 10 via a network. It is a storage unit that stores information such as image information of a submitted print job.

  The non-volatile storage unit 15 is a non-volatile storage unit such as a flash memory or a battery-backed RAM that is controlled by the control unit 11. The non-volatile storage unit 15 stores muscle management information 200.

  The image forming unit 16 is controlled by the control unit 11 and forms an image on a sheet based on document image information read by the image reading unit 19 or image information of a print job input from an external device (not shown). To do.

  The fixing unit 17 is controlled by the control unit 11 and fixes the toner image formed on the sheet by the image forming unit 16 by thermocompression bonding.

  The document transport unit 18 is controlled by the control unit 11 and transports the document toward the image reading unit 19.

  The image reading unit 19 is controlled by the control unit 11, reads an image of a document conveyed by the document conveying unit 18, and outputs the document image information to the control unit 11.

  The transport unit 20 is controlled by the control unit 11 and includes transport rollers and the like. The transport roller or the like feeds the paper supplied from the paper feed unit 22 to the saddle stitching device 30 via the image forming unit 16 and the fixing unit 17. It is transported along the transport path until it is discharged. The conveyance path of the conveyance unit 20 includes a conveyance path that passes through the image forming unit 16 and the fixing unit 17 at the time of single-sided printing or double-sided printing front surface formation, and a sheet discharged from the fixing unit 17 at the time of double-sided printing backside image formation. A reversing conveyance path that is reversed by a reversing mechanism (not shown) and conveyed to the image forming unit 16 again.

  The cover identification unit 21 is controlled by the control unit 11, and the next sheet fed from the sheet feeding unit 22 is determined based on the sheet information of the print job or the sheet information input from the user via the operation unit 13A. Identifies whether the cover. The control unit 11 may be configured to perform the same cover identification as the cover identification unit 21.

  Next, the functional configuration of the saddle stitching device 30 will be described. The saddle stitching device 30 includes a control unit 31, communication units 32 and 33, a conveyance path selection unit 34, a reverse stacking unit 35, a crease unit 36, a slit unit 37, a saddle stitching unit 38, and an SQF unit 39. A cutting unit 40, a transport unit 41, a rear transport unit 42, a sub-tray discharge stacking unit 43, a booklet discharge stacking unit 44, and a booklet unloading unit 45.

  Similar to the control unit 11, the control unit 31 includes a CPU, a RAM, a ROM, and the like, and controls each unit of the saddle stitching device 30.

  The communication unit 32 is controlled by the control unit 31 and performs serial communication with the communication unit 12 of the image forming apparatus 10. The communication unit 33 is controlled by the control unit 31 and performs serial communication with the communication unit 52 of the punching bind device 50.

  The conveyance path selection unit 34 is controlled by the control unit 31 and selects a sheet conveyance path in the saddle stitching apparatus 30.

  The reverse stacking unit 35 is controlled by the control unit 31 and stacks and discharges the sheets discharged from the image forming apparatus 10.

  The crease unit 36 is controlled by the control unit 31 and puts a crease line in the sheet superimposed by the reverse stacking unit 35.

  The slit unit 37 is controlled by the control unit 31 and cuts the top and bottom of the sheets superimposed by the reverse stacking unit 35.

  The saddle stitching unit 38 is controlled by the control unit 31, and performs the saddle stitching and staple binding saddle stitching on the sheet bundle that has been overlapped and discharged by the reverse stacking unit 35 to bind the sheet bundle.

  The SQF unit 39 is controlled by the control unit 31 and performs a square folding process on the sheet bundle that is saddle-stitched by the saddle stitching unit 38.

  The cutting unit 40 is controlled by the control unit 31, and cuts the edge of the sheet with respect to the sheet bundle formed into a booklet by the saddle stitching unit 38 or the sheet bundle subjected to the square folding process in the SQF unit 39.

  The transport unit 41 is controlled by the control unit 31 and includes transport rollers and the like. The paper discharged from the image forming apparatus 10 by the transport rollers or the like is reversed and overlapped unit 35 (crease unit 36, slit unit 37), middle It is transported by a transport path via the binding unit 38 and the (SQF unit 39) cutting unit 40.

  The rear-stage transport unit 42 is controlled by the control unit 31 and includes a transport roller and the like, and transports the paper discharged from the image forming apparatus 10 through the transport path to the subsequent-stage punch ring binding device 50 by the transport roller or the like. .

  The sub-tray discharge stacking unit 43 is controlled by the control unit 31 and transports the paper discharged from the image forming apparatus 10 and discharges and stacks it on the sub-tray TR2.

  The booklet discharge stacking unit 44 is controlled by the control unit 31, and transports and stacks the sheet bundle (booklet) that has been subjected to the saddle stitching processing discharged from the cutting unit 40.

  The booklet carry-out unit 45 has a belt and the like, and is controlled by the control unit 51 to carry out the saddle-stitched sheet bundle (booklet) loaded on the booklet discharge stacking unit 44 to the outside through the belt.

  Next, the functional configuration of the punch ring binding device 50 will be described. The punch ring binding device 50 includes a control unit 51, communication units 52 and 53, a conveyance path selection unit 54, a stack alignment unit 55, a punch unit 56, a ring binding unit 57, a conveyance unit 58, and a subsequent conveyance. Section 59 and sub-tray discharge stacking section 60.

  The control unit 51 includes a CPU, a RAM, a ROM, and the like, like the control unit 11, and controls each unit of the punching binding device 50.

  The communication unit 52 is controlled by the control unit 51 and performs serial communication with the communication unit 33 of the saddle stitching device 30. The communication unit 53 is controlled by the control unit 51 and performs serial communication with the communication unit 72 of the case binding apparatus 70.

  The transport path selection unit 54 is controlled by the control unit 51 and selects a transport path of the paper in the punch ring binding device 50.

  The stack aligning unit 55 is controlled by the control unit 51, and the sheet discharged from the saddle stitching device 30 and conveyed to the upper portion of the stack aligning unit 55 slides down to the stopper by its own weight and stops. As a result, the plurality of sheets in the stack aligning unit 55 are aligned in the transport direction, and are aligned in the transport direction. Further, the stack aligning unit 55 performs alignment by lightly striking a sheet with a light striking mechanism with respect to the width of the sheet orthogonal to the transport direction.

  The punch unit 56 is controlled by the control unit 51 to punch a punch hole having a predetermined shape at a predetermined position of the sheet aligned by the stack aligning unit 55. The punch part 56 makes a multi-hole punch hole of 2 holes, 3 holes or more.

  The ring binding unit 57 is controlled by the control unit 51 and attaches a ring binder to the paper hole punched by the punch unit 56.

  The conveyance unit 58 is controlled by the control unit 51 and includes a conveyance roller. The conveyance unit 58 conveys the paper discharged from the saddle stitching device 30 through a conveyance path via the punch unit 56 and the ring binding unit 57. .

  The rear-stage transport unit 59 is controlled by the control unit 51 and includes a transport roller. The rear-stage transport unit 59 receives the punched paper discharged from the punch unit 56 or the paper discharged from the saddle stitching device 30 by the transport roller or the like. It is transported along the transport path to the case binding device 70.

  The sub-tray discharge stacking unit 60 is controlled by the control unit 51, conveys the ring-bound paper (sheet bundle) discharged from the ring binding unit 57, and discharges and stacks it on the sub-tray TR3.

  Next, the functional configuration of the case binding apparatus 70 will be described. The case binding apparatus 70 includes a control unit 71, communication units 72 and 73, a conveyance path selection unit 74, a case binding unit 75, a conveyance unit 76, a rear conveyance unit 77, a sub-tray discharge stacking unit 78, and a booklet. A discharge stacking unit 79, a cart insertion detecting unit 80, and a cart transporting unit 81 are provided. The case binding unit 75 includes a stack alignment unit 75A, a paste supply unit 75B, a paste application unit 75C, and a booklet case unit 75D.

  The control unit 71 includes a CPU, a RAM, a ROM, and the like, similarly to the control unit 11, and controls each unit of the case binding device 70.

  The communication unit 72 is controlled by the control unit 71 and performs serial communication with the communication unit 53 of the punching bind apparatus 50. The communication unit 73 is controlled by the control unit 51 and performs serial communication with the communication unit 92 of the stapling apparatus 90.

  The transport path selection unit 74 is controlled by the control unit 71 and selects a transport path of paper in the case binding apparatus 70.

  The stack aligning unit 75A is controlled by the control unit 71 and arranged with an inclination. The sheet discharged from the punch ring binding device 50 and transported from the transport path to the upper portion of the stack aligning portion 75A slides down to the stopper due to its own weight and stops. As a result, the plurality of sheets in the stack aligning unit 75A are aligned in the transport direction, and are aligned in the transport direction. Further, the stack aligning unit 75A performs alignment by lightly striking a sheet with a light striking mechanism with respect to the width of the sheet orthogonal to the transport direction. For example, the stack aligning unit 75A is clamped next after it is carried in from the punch ring binding device 50 while the clamp unit (not shown) performs a clamping (hardening) process on a bundle of sheets. Stack as many sheets as possible.

  The glue replenishing unit 75B is controlled by the control unit 71 and replenishes the glue applying unit 75C. The glue applying unit 75C is controlled by the control unit 71, and, for example, advances when applying glue and applies glue to the lower end surface of the sheet bundle aligned by the stack aligning unit 75A when retreating.

  The booklet wrapped portion 75D is controlled by the control unit 71 and wraps a cover on the booklet coated with glue by the glue applying unit 75C.

  The transport unit 76 is controlled by the control unit 71 and includes a transport roller and the like, and the paper discharged from the punching bind device 50 by the transport roller or the like is used for stack alignment unit 75A, glue application unit 75C, and booklet wrap unit 75D. It is transported by the transport route via

  The succeeding transport unit 77 is controlled by the control unit 71 and includes transport rollers and the like, and transports the paper discharged from the punch ring binding device 50 through the transport path to the subsequent stapling device 90 by the transport rollers and the like.

  The sub-tray discharge stacking unit 78 is controlled by the control unit 71, conveys the sheet discharged from the punch ring binding device 50, discharges it to the sub-tray TR4, and stacks it.

  The booklet discharge stacking unit 79 is controlled by the control unit 71, transports and stacks the case bookbinding-processed sheet bundle (booklet) coated with glue by the glue applying unit 75C and processed by the booklet case unit 75D.

  The cart insertion detection unit 80 detects, for example, that a moving cart (not shown) is inserted into the case binding device 70 and outputs a detection signal to the control unit 71. The cart insertion detection unit 80 is configured by, for example, a contact sensor.

  The carriage transfer unit 81 is controlled by the control unit 71 and, for example, transfers the booklet loaded on the booklet discharge stacking unit 79 to the moving carriage. The booklet loaded on the movable carriage is taken out by the user.

  Next, the functional configuration of the stapling apparatus 90 will be described. The stapling device 90 includes a control unit 91, a communication unit 92, a conveyance path selection unit 93, a stack alignment unit 94, a staple unit 95, a conveyance unit 96, a sub-tray discharge stacking unit 97, and a main tray discharge stacking unit. 98.

  Similar to the control unit 11, the control unit 91 includes a CPU, a RAM, a ROM, and the like, and controls each unit of the stapling apparatus 90.

  The communication unit 92 is controlled by the control unit 91 and performs serial communication with the communication unit 73 of the case binding apparatus 70.

  The conveyance path selection unit 93 is controlled by the control unit 91 and selects a conveyance path in the stapling apparatus 90.

  The stack alignment unit 94 is controlled by the control unit 91 and is disposed with an inclination. The sheet discharged from the case binding device 70 and conveyed from the conveyance path to the upper part of the stack aligning unit 94 slides down to the stopper due to its own weight and stops. As a result, the plurality of sheets in the stack aligning unit 94 are aligned in the transport direction, and are aligned in the transport direction. In addition, the stack aligning unit 94 performs alignment by lightly striking a sheet with a light striking mechanism with respect to the width of the sheet orthogonal to the transport direction.

  The staple unit 95 is controlled by the control unit 91 and is arranged in two sets in a direction orthogonal to the conveyance direction, and can be moved in a direction orthogonal to the conveyance direction by a driving unit (not shown). The staple unit 95 moves the bundle of sheets aligned by the stack aligning unit 94 to a predetermined position, and then staples the staple (binding needle) at one place or two central distribution places in the width direction to bind the bundle of sheets. The staple unit 95 can bind the staple direction in the horizontal direction or the oblique direction of the sheet when binding one place.

  The transport unit 96 is controlled by the control unit 91 and has a transport roller or the like, and the paper discharged from the case binding device 70 by the transport roller or the like does not pass through the stack alignment unit 94 and the staple unit 95 or not. Transport along the transport path.

  The sub-tray discharge stacking unit 97 is controlled by the control unit 91, transports the paper transported by the transport unit 96, discharges the paper onto the sub-tray TR6, and stacks it.

  The main tray discharge stacking unit 98 is controlled by the control unit 91, transports the paper transported by the transport unit 96, discharges it to the main tray TR5, and stacks it.

  Next, the crease portion 36 will be described with reference to FIG. FIG. 4 is a diagram illustrating the configuration of the crease portion 36.

  The crease portion 36 includes a creasing knife 36A and a creasing base 36B. The transport roller 41 </ b> A is a transport roller of the transport unit 41. The stopper 35 </ b> A is a stopper for the inverted overlapping portion 35.

  The creasing knife 36A moves to the left and right in the figure under the control of the control unit 31. The creasing base 36B is a base that receives the creasing knife 36A.

  The paper P1 is transported to the crease unit 36 by the transport roller 41A, and the leading end of the paper P1 comes into contact with the stopper 35A. By raising and lowering the stopper 35A, the creasing knife 36A moves to the right at the position where the creasing line is to be inserted, and the paper P1 is pressed against the creasing base 36B, whereby the creasing line Q is formed on the paper P1.

  Next, information stored in the nonvolatile storage unit 15 of the image forming apparatus 10 will be described with reference to FIGS. 5 and 6. FIG. 5 is a diagram showing the configuration of the muscle management information 200. FIG. 6A is a diagram illustrating a paper 310 with two-point binding. FIG. 6B is a diagram showing a paper 320 with a two-hole punch. FIG. 6C illustrates the cover sheet 330 and the body sheet 340 in saddle stitching (with SQF). FIG. 6D shows a cover sheet 350 and a body sheet 360 in case binding.

  As shown in FIG. 5, muscle management information 200 set in advance is stored in the nonvolatile storage unit 15. The line management information 200 includes position information of the crease line by the saddle stitching device 30 corresponding to the post-processing mode indicating the type of post-processing of the post-processing apparatus and the presence / absence of the open line. The crease line position information is position information for each crease line on the paper, and includes information on the position and number of crease lines. The post-processing mode of the streak management information 200 includes two-point binding by the stapling device 90, two-hole / three-hole punching by the punch ring binding device 50, saddle stitching (no SQF) and saddle stitching (with SQF) by the saddle stitching device 30. ) And case binding by the case binding device 70.

  An open streak is a crease streak for facilitating the opening of a sheet. In addition, a crease line for facilitating the formation of the back of a booklet in saddle stitching or case binding for performing SQF is a back forming line. That is, the crease line is composed of an opening line and a back forming line. For example, in the muscle management information 200, the first and second crease lines in which the post-processing mode is saddle stitching (with / without SQF) are back forming lines. The third post-processing mode is saddle stitching (with SQF) is an open streak. Similarly, the first and second crease lines of the case binding cover in the post-processing mode are spine forming lines, and the third line of the case binding cover is an open line.

  Note that the post-processing mode and position information of the line management information 200 in FIG. 5 are examples, and are not limited to these values.

  As shown in FIG. 6A, based on the streak management information 200, a single crease streak Q11 is placed on the paper 310 having the open streak with the post-processing mode binding at two places. As shown in FIG. 6 (b), based on the line management information 200, a single crease line Q21 is put on the paper 320 with the post-processing mode opened by the 3-hole punch and having the line of the line. As shown in FIG. 6 (c), on the cover sheet 330 with the post-processing mode of saddle stitching (with SQF) and open streak insertion based on the streak management information 200, three crease lines Q31, Q32 are provided. , Q33 and three crease lines Q41, Q42, and Q43 are placed on the body sheet 340. As shown in FIG. 6D, three crease lines Q51, Q52, and Q53 are placed on the cover sheet 350 having the open streak with the case binding in the post-processing mode based on the line management information 200. Thus, a single crease line Q61 is placed on the body paper 360.

  Next, the operation of the image forming system 1 will be described with reference to FIGS. First, with reference to FIGS. 7 to 10, a creasing position setting process executed in the image forming apparatus 10 will be described. FIG. 7 is a diagram showing a two-position binding setting screen 410. FIG. 8 is a diagram showing a one-point binding setting screen 420. FIG. 9 is a flowchart of the placement position setting process. FIG. 10 is a flowchart subsequent to the creasing position setting process of FIG.

  When printing a sheet in the image forming system 1, a post-processing mode for a print job (during printing) and whether or not to open a streak are set in the image forming apparatus 10 in advance. More specifically, the control unit 11 displays a setting screen for setting the post-processing mode and the open streak on the display unit 13B of the operation display unit 13, and the operation unit 13A displays a setting screen for the user according to the setting screen. The operation input is received and stored in the nonvolatile storage unit 15 as mode setting information indicating the post-processing mode and the presence or absence of the open streak according to the operation input information. The mode setting information included in the job data of the print job may be stored in the nonvolatile storage unit 15.

  As shown in FIG. 7, when setting the staple processing as the post-processing mode, a setting screen 410 is displayed on the display unit 13B. The setting screen 410 includes a one-point binding selection button 411 and a two-point binding selection button 412. The setting screen 410 includes buttons 413, 414, and 415 for selecting a pitch between two staples and a button 416 for selecting whether or not to open an open streak in a state where the user presses the button 411. For example, when the buttons 412, 413, and 416 are pressed and selected, the post-processing mode is set at two places, the pitch is 165 mm, and the open streak is set.

  As shown in FIG. 8, when the button 411 is pressed and selected on the setting screen 410, the setting screen 420 is displayed on the display unit 13B. The setting screen 420 includes a horizontal selection button 421 for the staple direction and a diagonal selection button 422. Since one-point binding does not require a crease line and is a crease line prohibition process, the setting screen 430 does not have an opening line selection button. For example, when the button 421 is selected by pressing, the post-processing mode is set to one-point binding and the staple direction is set to horizontal.

  As described above, the post-processing mode at the time of printing and the presence / absence of the open streak are set, and after the mode setting information is stored in the nonvolatile storage unit 15, the image forming system 1 performs printing. In the image forming apparatus 10, the sheets are fed one by one from the sheet feeding unit 22, and the image forming unit is based on document image information read by the image reading unit 19 or image information of a print job input from an external device. 16 and the fixing unit 17 form an image on a sheet, and the sheet is ejected to the subsequent saddle stitching device 30.

  At the same time, the control unit 11 of the image forming apparatus 10 transmits control information of the post-processing apparatus to the post-processing apparatus saddle stitching apparatus 30, punching bind apparatus 50, case binding apparatus 70, and stapling apparatus 90. The control unit 31 of the saddle stitching device 30, the control unit 51 of the punch ring binding device 50, the control unit 71 of the case binding device 70, and the control unit 91 of the stapling device 90 are transmitted from the control unit 11 of the image forming apparatus 10. Control information is received, and various post-processing is performed according to the control information.

  The image forming apparatus 10 cooperates with the CPU 11A and the creasing position setting program read from the ROM 11C and appropriately developed in the RAM 11B, triggered by the fact that one sheet is fed (every sheet feed). Thus, the control unit 11 executes a placement position setting process. The paper that is the trigger is referred to as “current paper”.

  As shown in FIG. 9, first, the control unit 11 refers to the mode setting information stored in the nonvolatile storage unit 15, and the set post-processing mode is the multi-hole punch or punch of the punch ring binding device 50. It is determined whether the ring binding of the ring binding device 50 or the single binding by the stapling device 90 is single (step S11). The multi-hole punch, the ring binder, and the one-point binding are all crease line prohibition processing that is prohibited because the crease line is not required. If the post-processing mode is a combination of a prohibition process and a process that does not become a prohibition process (for example, a combination of one-point binding and two-hole punching), NO is determined in step S11.

  When the post-processing mode is single of multi-hole punch, ring binder, or one-point binding (step S11; YES), the control unit 11 sets the crease line position information of the current sheet to 0 (crease line). Is not formed at all) (step S12), and the placement position setting process is terminated.

  When the post-processing mode is not multi-hole punch, ring binder, or single binding (step S11; NO), the control unit 11 refers to the mode setting information stored in the nonvolatile storage unit 15, It is determined whether or not an open muscle is inserted (step S13). When the open streak is not inserted (step S13; NO), the control unit 11 refers to the mode setting information and determines the content of the set post-processing mode (step S14). When the post-processing mode is a combination of a prohibition process and a process that does not become a prohibition process (for example, a combination of one-point binding and two-hole punching), a process that does not become a prohibition process in steps S13 and S14. For (for example, two-hole punch), the content of the post-processing mode and the opening of the open streak is determined.

  When the post-processing mode is saddle stitching (no SQF) (step S14; saddle stitching (no SQF)), the control unit 11 refers to the muscle management information 200 stored in the nonvolatile storage unit 15 and performs post-processing. Reads the position information of the crease line where the mode is saddle stitching (no SQF) and the open line is not inserted (step S15).

  When the post-processing mode is saddle stitching (with SQF) (step S14; saddle stitching (with SQF)), the control unit 11 refers to the muscle management information 200 stored in the nonvolatile storage unit 15 and performs post-processing. The mode information is saddle stitching (with SQF), and the position information of the crease line with no open streak is read (step S16).

  When the post-processing mode is case binding (step S14; case binding), the control unit 11 determines whether the current sheet is a case binding cover according to the identification result of the cover identification unit 21 ( Step S17). When the current sheet is a case binding cover (step S17; YES), the control unit 11 refers to the line management information 200 stored in the non-volatile storage unit 15 and opens the post-processing mode in case binding. The position information of the crease line of the cover is read without inserting the line (step S18).

  When the current sheet is not the case binding cover (step S17; NO), the control unit 11 refers to the line management information 200 stored in the nonvolatile storage unit 15 and the post-processing mode is case binding and the open line. The position information of the crease line of the main body is read without inserting the line (step S19).

  Then, the control unit 11 sets the position information of the crease line read in step S15, S16, S18, or S19 as the crease line position information of the current sheet (step S20), and performs the position setting process. finish.

  When the post-processing mode is not saddle stitching (no SQF), saddle stitching (with SQF) or case binding (step S14; other post-processing modes), the control unit 11 sets the current crease line position information to 0. (No crease line is formed at all) is set (step S21), and the line position setting process is terminated.

  When the open streak is present (step S13; YES), the control unit 11 refers to the mode setting information and determines the content of the set post-processing mode (step S31). When the post-processing mode is two-point binding (step S31; two-point binding), the control unit 11 refers to the muscle management information 200 stored in the nonvolatile storage unit 15 and the post-processing mode is two-point binding. Then, the position information of the crease line with the open line is read (step S32).

  When the post-processing mode is 2-hole / 3-hole punch (step S31; 2-hole / 3-hole punch), the control unit 11 refers to the muscle management information 200 stored in the nonvolatile storage unit 15 and performs post-processing. The mode information is 2-hole / 3-hole punch, and the position information of the crease line with the open line is read (step S33).

  When the post-processing mode is saddle stitching (with SQF) (step S31; saddle stitching (with SQF)), the control unit 11 refers to the muscle management information 200 stored in the nonvolatile storage unit 15 and performs post-processing. The mode information is saddle stitching (with SQF), and the position information of the crease line with the open streak insertion is read (step S34).

  When the post-processing mode is case binding (step S31; case binding), the control unit 11 determines whether the current sheet is the case binding cover according to the identification result of the cover identification unit 21 ( Step S35). When the current sheet is a case binding cover (step S35; YES), the control unit 11 refers to the line management information 200 stored in the nonvolatile storage unit 15 and opens the post-processing mode with case binding. The position information of the crease line of the cover is read with the presence of the line of the line (step S36).

  When the current sheet is not the case binding cover (step S35; NO), the control unit 11 refers to the line management information 200 stored in the nonvolatile storage unit 15 and the post-processing mode is case binding and the open line. The position information of the crease line of the body is read with the presence of the line (step S37).

  Then, the control unit 11 sets the crease line position information read in step S32, S33, S34, S36 or S37 as the crease line position information of the current sheet (step S38), and sets the line position. The process ends.

  The control unit 11 transmits the crease line position information of the current sheet crease line set by the line position setting process to the control unit 31 of the saddle stitching device 30 via the communication unit 12. The control unit 31 controls the crease unit 36 according to the crease line position information of the current sheet received from the control unit 11.

  Next, with reference to FIGS. 11 to 14, a creasing position adjustment process executed in the image forming apparatus 10 will be described. FIG. 11 is a flowchart showing the placement position adjustment process. FIG. 12 is a diagram showing the adjustment screen 510. FIG. 13 is a diagram showing the adjustment screen 520. FIG. 14 is a diagram showing the adjustment screen 530.

  The muscle placement position adjustment process is a process of adjusting (changing) (updating) the muscle management information 200 stored in the nonvolatile storage unit 15.

  For example, when an instruction to perform various adjustments is input from the user via the operation unit 13A, the control unit 11 displays the adjustment screen 510 illustrated in FIG. 12 on the display unit 13B. The adjustment screen 510 includes a staple position adjustment selection button 511, a staple pitch adjustment selection button 512, a punch hole position adjustment selection button 513, a punch hole pitch adjustment selection button 514, and a creasing position. And an adjustment selection button 515.

  When the button 511 is pressed, the position of the staple on the paper at the time of two-point binding and saddle stitching is adjusted by a user input via the operation unit 13A. When the button 512 is pressed, the staple pitch at the time of two-point binding and saddle stitching is adjusted by a user input via the operation unit 13A. The post-adjustment or default staple positions and pitches are stored in the nonvolatile storage unit 15 as staple position information.

  When the button 513 is pressed, the position of the punch hole on the paper at the time of the 2-hole / 3-hole punch is adjusted by a user input via the operation unit 13A. When the button 514 is pressed, the pitch of punch holes at the time of 2-hole / 3-hole punching is adjusted by user input via the operation unit 13A. The post-adjustment or default punch hole position and pitch are stored in the nonvolatile storage unit 15 as punch hole position information.

  In the image forming apparatus 10, it is read out from the ROM 11C and appropriately expanded in the RAM 11B, triggered by the input of the user pressing the button 515 (execution instruction input for the creasing position adjustment process) via the operation unit 13A. The control unit 11 executes a creasing position adjustment process in cooperation with the creasing position adjustment program and the CPU 11A.

  As shown in FIG. 11, first, the control unit 11 receives an input of the post-processing mode adjusted from the user via the operation unit 13A, and determines the content of the input post-processing mode (step S41). When the post-processing mode is two-point binding (step S41; two-point binding), the control unit 11 refers to the muscle management information 200 stored in the nonvolatile storage unit 15 and the post-processing mode is two-point binding. The position information of the crease line with the opening line is read (step S42).

  Then, the control unit 11 refers to the staple position information stored in the non-volatile storage unit 15 and reads the position information of the staple with the post-processing mode binding at two positions (step S43).

  Then, the control unit 11 displays on the display unit 13B a sheet sample having crease lines and staples corresponding to the position information of the crease lines and staples read in steps S42 and S43 (step S44). The sample of the paper in step S44 is, for example, a sample like the paper 310 in FIG.

  And the control part 11 receives the adjustment input of the position of the crease line in the two-point binding from the user via the operation part 13A, and acquires the adjustment result information as the position information after the crease line adjustment (step). S45). And the control part 11 is the adjustment result information acquired by step S45, and the post-processing mode of the muscle management information 200 memorize | stored in the non-volatile memory | storage part 15 is 2 places binding, and the crease line with a crease line with a crease is included. The position information is overwritten and changed (step S46).

  Then, the control unit 11 determines whether or not there is a post-processing mode to be adjusted according to an input from the user via the operation unit 13A (step S47). If there is another post-processing mode to be adjusted (step S47; YES), the process proceeds to step S41. When there is no other post-processing mode for adjustment (step S47; NO), the creasing position adjustment processing ends.

  When the post-processing mode is 2-hole / 3-hole punch (step S41; 2-hole / 3-hole punch), the control unit 11 refers to the muscle management information 200 stored in the nonvolatile storage unit 15 and performs post-processing. The position information of the crease line with the opening of the straight line is read by the 2-hole / 3-hole punch mode (step S48).

  Then, the control unit 11 refers to the punch hole position information stored in the non-volatile storage unit 15 and reads the punch hole position information of the 2-hole / 3-hole punch in the post-processing mode (step S49).

  Then, the control unit 11 displays on the display unit 13B a paper sample having crease lines and punch holes corresponding to the position information of the crease lines and punch holes read in steps S48 and S49 (step S50). The sample of the sheet in step S50 is a sample such as the sheet 320 of FIG. 6B, for example.

  And the control part 11 receives the adjustment input of the position of the crease line by 2-hole / 3-hole punch from a user via the operation part 13A, and acquires the adjustment result information as position information after adjustment of the crease line (Step S51). Then, the control unit 11 uses the adjustment result information acquired in step S51, and the post-processing mode of the muscle management information 200 stored in the non-volatile storage unit 15 is opened by 2-hole / 3-hole punching. The position information of the crease line is overwritten and changed (step S52), and the process proceeds to step S47.

  When the post-processing mode is saddle stitching (with SQF) (step S41; saddle stitching (with SQF)), the control unit 11 refers to the muscle management information 200 stored in the nonvolatile storage unit 15 and performs post-processing. The position information of the crease line with the saddle stitching (with SQF) mode and the open streak insertion is read (step S53).

  Then, the control unit 11 refers to the staple position information stored in the nonvolatile storage unit 15 and reads the staple position information in which the post-processing mode is saddle stitching (with SQF) (step S54).

  Then, the control unit 11 displays on the display unit 13B a sheet sample having crease lines and staples corresponding to the position information of the crease lines and staples read in steps S53 and S54 (step S55). The paper sample in step S55 is, for example, a sample such as the paper 330, 340 in FIG.

  Then, the control unit 11 receives an adjustment input of the position of the crease line in the saddle stitch (with SQF) from the user via the operation unit 13A, and acquires adjustment result information as position information after the adjustment of the crease line. (Step S56). And the control part 11 is the adjustment result information acquired by step S56, and the post-processing mode of the muscle management information 200 memorize | stored in the non-volatile memory | storage part 15 is a saddle stitch (with SQF), and an open muscle is put. The position information of the crease line is overwritten and changed (step S57), and the process proceeds to step S47.

  When the post-processing mode is case binding (step S41; case binding), the control unit 11 refers to the muscle management information 200 stored in the non-volatile storage unit 15, and the post-processing mode is case binding. The position information of the crease line of the cover with a line is read (step S58).

  Then, the control unit 11 refers to the muscle management information 200, and reads the position information of the crease line of the main crease with the open muscle line insertion in the case binding in the post-processing mode (step S59).

  Then, the control unit 11 displays a paper sample having a crease line corresponding to the position information of the crease line read in steps S58 and S59 on the display unit 13B (step S60). The paper sample in step S60 is, for example, a sample like the paper 350, 360 in FIG.

  And the control part 11 receives the adjustment input of the position of the crease line in case binding from a user via the operation part 13A, and acquires the adjustment result information as position information after adjustment of a crease line (step S61). ). And the control part 11 is the adjustment result information acquired by step S61, and the post-processing mode of the muscle management information 200 memorize | stored in the non-volatile memory | storage part 15 is the position of the crease line | wire with open streak insertion with case binding. The information is overwritten and changed (step S62), and the process proceeds to step S47.

  Here, a specific example of the placement position adjustment process will be described. When the button 515 is pressed on the adjustment screen 510 in FIG. 12, the adjustment screen 520 in FIG. 13 is displayed on the display unit 13 </ b> B in step S <b> 41 of the placement position adjustment process.

  The adjustment screen 520 includes, as post-processing mode selection buttons, a 2-point binding selection button 521, a 2-hole / 3-hole punch selection button 522, a saddle stitching (with SQF) selection button 523, and a case. And a bookbinding selection button 524. When the button 521 is pressed, a paper sample 525, a line addition button 526, a line deletion button 527, a cursor key 528, and a number display unit 529 are displayed on the adjustment screen 520.

  In step S44, the paper sample 525 displays staples and crease lines corresponding to the position information of the staples and crease lines read in steps S42 and S43. In step S <b> 45, a crease line of the paper sample 525 is added by pressing the line addition button 526 from the user. The crease line added to the paper sample 525 is moved and adjusted by the user pressing the cursor key 528. The crease line added to the paper sample 525 is moved and adjusted by the user pressing the cursor key 528. The position information of the crease line from the left end of the paper sample 525 that has been input for movement adjustment is displayed on the number display section 529. The crease line of the paper sample 525 is deleted by pressing the line deletion button 527 from the user. The adjustment input in step S45 is reflected in the paper sample 525.

  When the button 524 is pressed in step S41, the adjustment screen 530 shown in FIG. 14 is displayed, and a paper sample 531, a line addition button 532, a line deletion button 533, a cursor key 534, and a number display unit 535 are displayed. Is displayed.

  In step S60, the sheet sample 531 displays the crease line corresponding to the position information of the crease line read in steps S58 and S59. In step S <b> 61, the crease line of the paper sample 531 is added by pressing the line addition button 532 from the user. When the user presses the cursor key 534, the added crease line of the paper sample 531 is moved and adjusted. The position information of the crease line from the left end of the paper sample 531 that has been input for movement adjustment is displayed on the number display unit 535. The crease line of the paper sample 531 is deleted by a pressing input of the line deletion button 533 from the user. The adjustment input in step S60 is reflected in the paper sample 531.

  As described above, according to the present embodiment, the control unit 11 of the image forming apparatus 10 performs the line management information stored in the non-volatile storage unit 15 according to the post-processing mode at the time of printing and the presence or absence of the open line. The position information of the 200 crease lines is set to the position and number of crease lines formed by the crease 36 of the saddle stitching device 30 for each sheet. For this reason, the position and the number of crease lines can be freely set according to the post-processing mode at the time of printing and the presence / absence of opening lines. Therefore, by forming a preferable crease line according to the post-processing mode and the presence / absence of the open streak on the paper that is the printed matter, a high-quality paper bundle that is easy to read for the person who finally reads the printed matter ( Booklet). Furthermore, since the control unit 11 sets the position information of the crease line using the line management information 200, the burden on the operator (user) is reduced as compared with the configuration in which the position information of the crease line is manually set for each print. it can.

  The control unit 11 also folds the crease line of the line management information 200 stored in the non-volatile storage unit 15 according to the post-processing mode at the time of printing input through the operation unit 13A and the presence or absence of the open line. Is set to the position and number of crease lines formed by the crease 36 of the saddle stitching device 30 for each sheet. For this reason, the operator (user) can freely set the post-processing mode at the time of printing and the presence / absence of the open streak.

  Further, the control unit 11 changes the muscle management information 200 stored in the nonvolatile storage unit 15 in accordance with the adjustment information input via the operation unit 13A. For this reason, the operator (user) can freely change the muscle management information 200 manually.

  The control unit 11 also performs a crease line prohibition process when the post-processing mode is one of multi-hole punching, ring binding, single-point binding of staples, and saddle stitching of square folds. Then, the crease part 36 is set so as not to form a crease line on the sheet. For this reason, the post-processing mode in which the formation of crease lines is not preferable can be set so as not to form crease lines.

  In addition, when the post-processing mode is a combination of a crease line prohibition process and a process that does not become a forbidden process, the control unit 11 stores the non-forbidden process in the non-volatile storage unit 15. The position information of the crease lines in the line management information 200 is set to the position and number of crease lines formed by the crease 36 of the saddle stitching device 30 for each sheet. This is because, when the post-processing mode is a combination of prohibition processing and processing that is not prohibition processing, the person who finally reads the printed material desires that some crease line is formed. For this reason, when the post-processing mode is a combination of a prohibition process and a process that is not a prohibition process, a crease line that is preferable for a person who finally reads the printed matter can be formed.

  The description in the above embodiment is an example of a suitable image forming system according to the present invention, and the present invention is not limited to this.

  For example, in the above embodiment, the same post-processing mode and the presence / absence of the creasing mode are configured to form crease lines at the same position in each sheet of the sheet bundle, but the present invention is not limited to this. Absent. As the page number of each sheet of the sheet bundle increases, the position and / or number of crease lines may be changed.

  Further, the detailed configuration and detailed operation of each part constituting the image forming system in the above embodiment can be appropriately changed without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Image forming system 10 Image forming apparatus 11 Control part 11A CPU
11B RAM
11C ROM
DESCRIPTION OF SYMBOLS 12 Communication part 14 Image information memory | storage part 15 Non-volatile memory | storage part 16 Image formation part 17 Fixing part 18 Original conveyance part 19 Image reading part 20 Conveyance part 21 Cover sheet identification part 22 Paper feed part 30 Saddle stitching apparatus 31 Control parts 32 and 33 Communication Unit 34 transport path selection unit 35 reversal overlap unit 35A stopper 36 crease unit 36A creasing knife 36B creasing plate 37 slit unit 38 saddle stitching unit 39 SQF unit 40 cutting unit 41 transport unit 41A transport roller 42 rear transport unit 43 sub-tray discharge Stacking unit 44 Booklet discharge stacking unit 45 Booklet unloading unit 50 Punch ring bind device 51 Control unit 52, 53 Communication unit 54 Transport path selection unit 55 Stack alignment unit 56 Punch unit 57 Ring bind unit 58 Transport unit 59 Subsequent transport unit 60 Sub-tray discharge Loading unit 70 Case binding device 71 Control unit 72, 73 Communication unit 74 Conveyance Path selection unit 75 Case binding unit 75A Stack alignment unit 75B Glue replenishment unit 75C Glue application unit 75D Booklet case unit 76 Transport unit 77 Subsequent transport unit 78 Sub-tray discharge stacking unit 79 Booklet discharge stacking unit 80 Carriage insertion detection unit 81 Cart transport unit 90 Staple device 91 Control unit 92 Communication unit 93 Transport path selection unit 94 Stack alignment unit 95 Staple unit 96 Transport unit 97 Subtray discharge stacking unit 98 Main tray discharge stacking unit TR2, TR3, TR4, TR6 Subtray TR5 Main tray

Claims (5)

An image forming system comprising: an image forming apparatus that forms an image on a sheet; and at least one post-processing apparatus that performs post-processing on the sheet ejected from the image forming apparatus;
The post-processing device includes:
It has a crease that forms crease lines on the paper,
The image forming apparatus includes:
Stores management information having position information consisting of the position and number of crease lines corresponding to a post-processing mode indicating the type of post-processing of the post-processing apparatus, and whether or not to open a line for easy opening of the sheet. A storage unit to
The crease line position information stored in the storage unit is set to the position and number of crease lines formed by the crease unit for each sheet according to the post-processing mode at the time of printing and the presence or absence of the open line. And an image forming system. It has an operation unit that accepts input of post-processing mode at the time of printing and the presence / absence of open streak,
The control unit displays the position information of the crease line stored in the storage unit according to the post-processing mode input through the operation unit and the presence / absence of the open line, and the crease unit stores the position information for each sheet. The image forming system according to claim 1, wherein the image forming system is set to a position and the number of crease lines to be formed. The operation unit receives input of adjustment information of the management information,
The image forming system according to claim 2, wherein the control unit changes management information stored in the storage unit according to adjustment information input via the operation unit.   When the post-processing mode is one of multi-hole punching, ring binding, single-point binding of staples, and saddle stitching of square folds, The image forming system according to any one of claims 1 to 3, wherein the crease portion is set not to form a crease line on the sheet.   The control unit, when the post-processing mode is a combination of the prohibition process and the process that does not become the prohibition process, the crease line stored in the storage unit corresponding to the process that does not become the prohibition process. The image forming system according to claim 4, wherein the position information is set to a position and number of crease lines formed by the crease portion for each sheet.

Images