JP2011246221A - Fold marking device, image forming system, and paper conveying method - Google Patents

Fold marking device, image forming system, and paper conveying method Download PDF

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Publication number
JP2011246221A
JP2011246221A JP2010119879A JP2010119879A JP2011246221A JP 2011246221 A JP2011246221 A JP 2011246221A JP 2010119879 A JP2010119879 A JP 2010119879A JP 2010119879 A JP2010119879 A JP 2010119879A JP 2011246221 A JP2011246221 A JP 2011246221A
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Japan
Prior art keywords
crease
sheet
paper
conveying
unit
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JP2010119879A
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Japanese (ja)
Inventor
Go Aiba
Hitoshi Hattori
Naoyuki Ishikawa
Hidetoshi Kojima
Hideya Nagasako
Takashi Nishifuji
Naoki Oikawa
Yusuke Shibazaki
Naohiro Yoshikawa
秀俊 児島
直記 及川
直宏 吉川
仁 服部
勇介 柴崎
秀也 永迫
剛 相場
直行 石川
高史 西藤
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Ricoh Co Ltd
株式会社リコー
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Publication of JP2011246221A publication Critical patent/JP2011246221A/en
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Abstract

An object of the present invention is to receive the next sheet during the fold processing so that productivity can be maintained or improved.
A main path MP, a switchback path SB branched from the main path MP in a direction opposite to the sheet conveyance direction, and a branching means t1 for guiding the sheet from the main path MP to the switchback path SB are provided, and When the sheet is transported to the attachment member 6 position, after the trailing end of the preceding front sheet Sn exceeds the branching means t1, the front sheet Sn is transported in the reverse direction, and the front sheet Sn is transferred from the branching means t1 to the switchback path SB. After transporting the rear end portion, the transport of the paper is stopped so that the crease position of the front sheet Sn corresponds to the position of the crease member 6 and the front sheet Sn is transported in the reverse direction, or Before the next sheet Sn + 1 conveyed while making a crease on the previous sheet Sn reaches the crease member 6, the previous sheet Sn is discharged from the position of the crease member 6.
[Selection] Figure 24

Description

  The present invention performs saddle stitching on a bundle of sheets such as a sheet-like member (hereinafter referred to as a sheet) conveyed from the previous stage, and marks the sheet before folding the sheet into two at the center, or The present invention relates to a crease device that performs scoring, an image forming system that includes the crease device and an image forming device, and a sheet conveying method that is executed by the crease device.

  Conventionally, so-called center-folding or center-folding is performed in which a sheet bundle in which a plurality of sheets discharged from an image forming apparatus are bundled is subjected to saddle stitching, and the center-bound sheet bundle is folded in two at the center. It has been broken. When a bundle of sheets made up of a plurality of sheets is folded together in this way, the amount of extension of the sheet at the folding portion on the outer side of the sheet bundle becomes larger than that of the inner sheet. For this reason, the formed image portion extends at the outer paper folding portion, and the image portion may be damaged, such as toner peeling. The same phenomenon occurs in other folding processes such as Z-folding and three-folding. Further, folding may be insufficient depending on the thickness of the sheet bundle.

  Therefore, a creasing device called a creaser that prevents the toner from peeling off by pre-scoring the folded portion of the paper before the folding process such as folding the paper bundle in two and making the outer paper easy to break. Is already known. In such a creasing device, there is a creasing device that runs in a direction perpendicular to the conveying direction by running a roller, baking with a laser, or pressing with a creasing blade.

  For example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2004-284774) discloses a first path through which paper is transported, a second path through which paper is transported to the post-processing section, and a third path through which paper is discharged without post-processing. In a paper transport apparatus having a fourth path for retaining paper, the paper sent to the second transport path is retained in the fourth transport path, and the paper sent from the first transport path is A mechanism is disclosed in which the paper sent to the second conveyance path is overlapped with the paper sent to downstream post-processing.

  Patent Document 2 (Japanese Patent No. 3617936) discloses a post-processing tray provided inside the apparatus, a conveyance path that guides the sheet toward the post-processing tray, and a sheet conveyance unit that conveys the sheet. In a sheet processing apparatus that stacks sheets on the post-processing tray, performs binding processing, etc., and then discharges the sheets to a paper discharge tray, the sheet is formed so that the sheet cannot flow backward at a predetermined position on the conveyance path. In addition, a branch path is formed downstream of the predetermined position, and control means for controlling the sheet conveying means is provided. The sheet conveying means is controlled by the control means to reversely flow the sheet that has passed the predetermined position. It is possible to wait on the branch path, and the sheet or sheets to be transported on the branch path and the next conveyed sheet are overlapped with each other. Invention which is adapted to convey toward the processing tray is disclosed.

  Further, in Patent Document 3 (Japanese Patent No. 4355255), a first conveyance path that guides a sheet carried from a preceding apparatus from a receiving port to a processing tray, and a branch from the first conveyance path are temporarily included. A second transport path for retracting the paper and a first transport means provided in the first transport path for transporting the paper in the direction toward the processing tray, and provided in the first transport path. A second conveying means for conveying the sheet in a direction opposite to the direction on the processing tray side by rotating in the reverse direction and conveying the sheet in a direction opposite to the direction on the processing tray side by rotating in the reverse direction; Switching means for guiding the paper to the second transport path when transported in the reverse direction, and the first transport means and the second transport means sandwich the switching means between The first conveying means receives the acceptance The second conveying means is installed on the processing tray side on the mouth side, and has a function of superimposing and conveying the preceding paper temporarily retracted to the second conveying path with the following paper. In the sheet processing apparatus, when the preceding sheet is conveyed in the reverse direction by the second conveying unit and the preceding sheet is guided to the second conveying path by the switching unit, the second conveying unit To stop the second conveying means while holding the preceding paper, and wait until the following paper is superimposed, immediately before the following paper reaches the second conveying means. An invention is disclosed that includes a control unit that rotates the second conveying unit forward to superimpose the preceding sheet and the following sheet and conveys the sheet in the direction toward the processing tray.

  Patent Documents 1 to 3 disclose a technique for transporting sheets in a superimposed manner. On the other hand, since the crease process is temporarily stopped and processed at that position, a certain time is required for the process, and the productivity is limited. In particular, when the crease marks are applied by the press method, the conditions related to productivity become severe.

  However, the prior art does not consider maintaining or increasing productivity, and cannot accept the next sheet during post-processing and maintain productivity.

  Therefore, the problem to be solved by the present invention is to accept the next sheet during the folding process so that productivity can be maintained or enhanced.

  In order to solve the above-described problem, the first means includes a crease forming means in the paper transport path, and a crease forming apparatus for making a crease by the crease attaching means on the paper transported by the transport means. A first transport path that transports the paper transported from the first transport path to a position of the marking means, and a second transport path branched from the first transport path in a direction opposite to the paper transport direction; A branching unit that leads from the first transporting path to the second transporting path, and a control unit that controls the transporting unit, the crease marking unit, and the branching unit, and the control unit includes the marking unit. When transporting the sheet to the position of the means, after the trailing edge of the front sheet transported first exceeds the branching unit, the front sheet is transported in the reverse direction, and the branching unit transfers to the second transport path. After transporting the rear edge of the front paper, The conveyance of the sheet is stopped so that the marking position corresponds to the position of the crease marking unit, and the front sheet is conveyed in the reverse direction by the conveyance unit, or the fold is creased on the front sheet by the crease marking unit. The preceding sheet is discharged from the crease unit before the next sheet conveyed while the mark reaches the crease unit.

  The second means has a crease means in the paper conveyance path, and in the crease applying apparatus for making a crease by the crease means on the paper conveyed by the conveyance means, the paper conveyed from the preceding stage A first transport path transported to the marking means position and transported to the subsequent stage; third and fourth transport paths branching from the upstream side of the first transport path and joining on the downstream side; A branching unit that selects a third or fourth transporting route from one transporting route and guides the paper; and a control unit that controls the transporting unit, the crease attaching unit, and the branching unit, The means controls the branching means, and when the sheet is conveyed to the marking means position, the preceding sheet conveyed first is conveyed to one of the third or fourth conveyance path, and then conveyed. The next sheet of paper in the third or fourth transport path While the sheet being conveyed from the one conveyance path is stopped so that the crease position corresponds to the position of the crease unit, and the next sheet is being conveyed by the conveyance unit, or The preceding sheet is discharged from the crease unit before the next sheet conveyed while the crease unit makes a crease on the previous sheet reaches the crease unit.

  The third means is that the first or second means passes through the branch portion on the crease attaching means side in a state where the rear end portion of the front sheet and the front end portion of the next sheet are overlapped. Features.

  The fourth means includes a conveying means between the branch portion and the crease attaching means in the third means, and the branch on the crease attaching means side in a state where the leading end portion of the next sheet is overlapped. The nip of the conveying means is opened when passing through the section.

  A fifth means includes a conveying means between the branch portion and the crease attaching means in the third means, and the branch on the crease attaching means side in a state where the leading end portion of the next sheet is overlapped. When passing through the section, the conveying means rotates with the paper.

  A sixth means is characterized by an image forming system including a crease forming apparatus according to the first to fifth means and an image forming apparatus for forming an image on a sheet.

  The seventh means has a crease forming means in the paper transport path, and is transported from the preceding stage in the paper transport method of the crease device for making a crease by the crease means on the paper transported by the transport means. A first transport path for transporting the incoming paper to the position of the marking means and transporting it to the subsequent stage; a second transport path branched from the first transport path in a direction opposite to the paper transport direction; and the first Branching means that leads from the transport path to the second transport path, and when the sheet is transported to the marking means position, after the trailing edge of the preceding sheet transported first exceeds the branching means, After the front sheet is conveyed in the reverse direction and the trailing edge of the front sheet is conveyed from the branching unit to the second conveyance path, the crease position corresponds to the crease unit position. Stop the transport and use the previous means by the transport means The front sheet is folded before the next sheet conveyed while the sheet is being conveyed in the reverse direction or while the crease is making a crease on the previous sheet. The sheet is discharged from the means.

  The eighth means has a crease means in the paper conveyance path, and in the crease applying apparatus for making a crease by the crease means on the paper conveyed by the conveyance means, the paper conveyed from the previous stage. A first transport path transported to the marking means position and transported to the subsequent stage; third and fourth transport paths branching from the upstream side of the first transport path and joining on the downstream side; Branching means for selecting the third or fourth transport path from one transport path and guiding the paper, and when transporting the paper to the position of the marking means, the previous paper transported first is third. Alternatively, the sheet is conveyed to one of the fourth conveying paths, the next sheet conveyed next is conveyed to the other of the third or fourth conveying path, and the sheet conveyed from the one conveying path is creased. The position corresponds to the position of the crease means Before stopping the next sheet conveyed by the conveying means or before the next sheet conveyed while making a crease on the previous sheet by the crease attaching means reaches the crease means The front sheet is discharged from the crease forming means.

  In the embodiment described later, the conveying means is denoted by reference numerals 1a, 1b, 1c, 1d, and 2, the crease marking means is denoted by the marking member 6 and the cradle 7, the first conveying path is denoted by the main path MP, 2 is the switchback path SB, the branching means is at t1 and t2, the control means is at CPU_A1, the crease device is at reference A, the third conveying path is at the first conveying path SBa, The transport path 4 corresponds to the second transport path SBb, the branch section corresponds to the branch sections SB1 and SB2, and the image forming apparatus corresponds to the code PR.

  According to the present invention, since it is configured as described above, it is possible to accept the next sheet during the folding process and maintain or improve productivity.

1 is a diagram showing a schematic configuration of an image forming system in an embodiment of the present invention. It is explanatory drawing which shows a series of operation | movement of an image forming system with a folding process, and shows a state when a paper is carried in into a crease forming apparatus. FIG. 9 is an explanatory diagram showing a series of operations of the image forming system with folding processing, and shows a state when the leading edge of the sheet has been conveyed to just before the downstream conveying means. It is explanatory drawing which shows a series of operation | movement of an image forming system with a folding process, and shows a state when the crease forming process is performed. FIG. 6 is an explanatory diagram showing a series of operations of the image forming system with folding processing when a creased sheet is carried into a sheet post-processing apparatus and a second sheet is carried into a crease apparatus; Indicates the state. It is explanatory drawing which shows a series of operation | movement of an image forming system with a folding process, and shows a state when the front end of the 2nd sheet | seat is abutted against the abutting board in front of the crease forming part. It is explanatory drawing which shows a series of operation | movement of an image forming system with a folding process, and shows the state when the crease | folding process is performed to the 3rd sheet | seat. It is explanatory drawing which shows a series of operation | movement of an image forming system with a folding process, and shows the state when the last sheet | seat is integrated | stacked on the middle folding process tray. FIG. 9 is an explanatory diagram showing a series of operations of the image forming system with folding processing, and shows a state when the sheet bundle is moved from the state of FIG. 8 to the center folding position. It is explanatory drawing which shows a series of operation | movement of an image forming system accompanied by a folding process, and shows the state when the middle folding process is performed from the state of FIG. It is explanatory drawing which shows a series of operation | movement of an image forming system accompanied by a folding process, and shows the state discharged | emitted while performing a middle folding by a folding roller. FIG. 5 is an explanatory diagram showing a series of operations of the image forming system with folding processing, and shows a state when a folded sheet bundle is discharged onto a stacking tray. It is a figure which shows schematic structure of a crease marking mechanism, and shows the state in which the marking member was separated from the cradle. It is a figure which shows schematic structure of a crease marking mechanism, and shows the state which the scribe member press-contacts a receiving stand and has made a crease. It is the schematic which looked at the state of FIG. 13 from the front. It is a figure which shows the structure of the conveyance path in the crease apparatus which concerns on Example 1. FIG. It is a principal part block diagram which shows the branch nail | claw as a branch means, and its drive mechanism. It is a principal part block diagram which shows the other example of the branch nail | claw as a branch means, and its drive mechanism. FIG. 9 is an operation explanatory view showing an operation of conveying a sheet using a switchback path and making a crease, and shows a state immediately after the leading edge of the front sheet passes through a branching portion of the crease forming apparatus. FIG. 7 is an operation explanatory diagram showing an operation of conveying a sheet using a switchback path and making a crease, and shows a state immediately after the rear end portion of the front sheet passes through a branching portion of the crease device. FIG. 9 is an operation explanatory view showing an operation of conveying a sheet using a switchback path and making a crease, and shows a state when the rear end portion of the front sheet is conveyed to the switchback path side. FIG. 5 is an operation explanatory diagram illustrating an operation of conveying a sheet by using a switchback path and making a crease. A crease process is performed on the preceding sheet, and the next sheet to be followed is conveyed to the vicinity of the branch portion. The state when FIG. 9 is an operation explanatory view showing an operation of conveying a sheet using a switchback path and making a crease, and shows a state when the crease process for the previous sheet is finished and the crease member is retracted. In the operation explanatory diagram showing the operation of conveying the paper using the switchback path and making the crease, the crease processing for the front paper is finished, and the leading edge of the next paper is below the trailing edge of the front paper The state when it overlaps with is shown. The operation explanatory diagram showing the operation of conveying the paper using the switchback path and making the crease. The crease processing for the previous paper is completed, and the leading edge of the next paper and the trailing edge of the previous paper overlap. The state when being conveyed is shown. FIG. 9 is an operation explanatory diagram showing an operation of conveying a sheet using a switchback path and making a crease, and shows a state when a previous sheet is discharged and a next sheet is conveyed to the position of FIG. FIG. 9 is an operation explanatory diagram showing an operation of conveying a sheet using a switchback path and making a crease, and shows a state when a previous sheet is discharged and a next sheet is conveyed to the position of FIG. It is a figure which shows the structure which can separate the conveyance roller which comprises a conveyance means. It is a figure which shows the structure and operation | movement of a conveyance means of FIG. 28, and shows a state when a conveyance means exists in a conveyance position. It is a figure which shows the structure and operation | movement of a conveyance means of FIG. 28, and shows a state when a conveyance means exists in a separation position. It is operation | movement explanatory drawing when conveying using the conveyance means in which separation is possible, and the state when the next sheet has overlapped on the lower side of the previous sheet is shown. It is operation | movement explanatory drawing when conveying using the separation | separation conveyance means, and shows the state when the next sheet is conveyed by overlapping the lower side of the previous sheet. It is a figure which shows schematic structure of the crease forming apparatus which concerns on Example 2. FIG. FIG. 10 is an operation explanatory diagram for explaining the operation in the embodiment 2 and shows a state immediately before the front sheet enters the crease forming apparatus. FIG. 9 is an operation explanatory diagram for explaining the operation in the embodiment 2 and shows a state when the front sheet enters the first conveyance path of the crease forming apparatus. FIG. 10 is an operation explanatory diagram for explaining the operation in the embodiment 2 and shows a state when the next sheet enters the second conveyance path when the previous sheet is performing the crease forming process. FIG. 9 is an operation explanatory diagram for explaining the operation in Embodiment 2 and shows a state when the front sheet folding process is completed and the leading edge of the next sheet is positioned below the trailing edge of the preceding sheet. FIG. 10 is an operation explanatory diagram for explaining the operation in the second embodiment, in which the front sheet folding process is completed and conveyed, and the leading edge of the next sheet is conveyed under the trailing edge of the preceding sheet. Indicates. FIG. 9 is an operation explanatory diagram for explaining the operation in the embodiment 2 and shows a state when a previous sheet is discharged and a crease forming process is performed on the next sheet. FIG. 10 is a diagram illustrating a configuration in which a transport roller that configures a transport unit can be separated in Embodiment 2. FIG. 9 is an operation explanatory diagram when transporting using a separation unit that can be separated in the second exemplary embodiment, when a crease process is performed on the front sheet, and the leading end of the next sheet overlaps below the rear end of the front sheet It is a figure which shows the state of. FIG. 9 is an operation explanatory diagram when transporting using a transportable unit that can be separated in the second embodiment, in which the crease process is finished on the front sheet, and the leading edge of the next sheet is transported with the leading edge of the next sheet overlapping the lower end of the front sheet. FIG. 2 is a block diagram illustrating a control configuration of an image forming system including a crease forming apparatus, a folding processing apparatus that performs a folding process, and an image forming apparatus. FIG. 3 is a flowchart illustrating a control procedure of the crease marking apparatus according to the first embodiment. 6 is a flowchart illustrating a control procedure of the crease forming apparatus when the conveying unit can be separated in the first embodiment. 10 is a flowchart illustrating a control procedure of the crease marking apparatus according to the second embodiment. 12 is a flowchart illustrating a control procedure of the crease forming apparatus when the conveying unit can be separated in the second embodiment.

When receiving continuously conveyed paper and performing a crease process that requires a certain processing time for each paper, the gap between the paper and the subsequent paper may be clogged or the subsequent paper may catch up. However, in the present embodiment, after the crease process is completed, it is possible to leave the paper interval at the time of acceptance again. As a result, the crease process can be continuously performed while maintaining productivity.
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a schematic configuration of an image forming system according to an embodiment of the present invention. This image forming system basically includes an image forming apparatus PR that forms an image on a sheet, a creasing apparatus A that performs scoring, and a folding processing apparatus B that performs folding processing (post-processing).

  The crease marking apparatus A includes first and second transport means 1 and 2 and a crease marking mechanism C. The crease marking mechanism C is composed of a mark marking member 6 and a cradle 7. A crease is made by sandwiching the paper with the base 7. After the crease is made by the crease device A, the sheet is sent to the fold processing device B downstream. The folding processing device B includes third to fifth transport means 3, 4, 5, a middle folding device D, and a stacking tray 12. In this embodiment, the conveying means is constituted by a conveying roller.

  The image forming apparatus PR visualizes and outputs image data input from a scanner, PC, etc. as a visible image on paper, and uses a known image forming engine such as an electrophotographic method or a droplet discharge method. The

  The crease device A includes a conveyance mechanism and a crease mechanism. The crease mechanism includes a crease member and a cradle, and a linear crease is formed by sandwiching a sheet between the crease member and the cradle. Attached. Blades (crease blades-convex blades) for making marks are provided in a straight line in the direction perpendicular to the paper transport direction on the end face of the crease-bearing member facing the cradle. The crease blade is formed in a blade shape with a sharp tip. On the other hand, on the surface of the cradle facing the crease blade, a crease groove (concave blade) into which the tip edge of the crease blade fits is cut. Since both are formed in such a shape, when the sheet is sandwiched, a crease is formed by the tip shape (convex blade) and the groove shape (concave blade).

  The folding processing device B includes an intermediate folding device D that performs folding processing, and the sheet on which the crease is made by the crease forming apparatus A is carried in, and the sheet is transferred to the first to third transport means 3 and 3 of the transport mechanism. 4 and 5 lead to the folding device D.

  The middle folding device D includes a middle folding processing tray 10, a rear end fence 11 provided at the lower end (the most upstream side in the conveying direction) of the middle folding processing tray 10, a folding plate 8 and a folding roller pair 9 that are folded along a fold, and A loading tray 12 is provided. The trailing edge fence 11 aligns the sheet conveyance direction. The trailing edge of the sheet discharged to the middle folding processing tray 10 is forcibly pressed against the trailing edge fence 11 by a return roller (not shown), and the position of the sheet is adjusted. Align. Further, alignment in a direction orthogonal to the transport direction is also performed by a jogger fence (not shown).

  The folding plate 8 presses its leading edge against the aligned sheet bundle along the fold and pushes it into the nip of the pair of folding rollers 9. As a result, the sheet bundle is pushed into the nip of the pair of folding rollers 9, and a crease is made at the nip. In the case where the saddle stitching process is involved, the folding process, so-called bi-folding, is performed after the binding process is performed on a portion to be streaked by a binding device (not shown). The folded sheet bundle is discharged to the stacking tray 12 and stacked.

  2 to 12 are explanatory diagrams showing a series of operations of the image forming system accompanied with the folding process. In this image forming system, the sheet P1 on which an image is formed in the image forming apparatus PR is conveyed into the creasing apparatus A and stops at a position where a crease is made (FIGS. 2 and 3). As shown in FIG. 4, when the leading edge of the paper P <b> 1 stops at a position where it abuts on the nip of the second conveying means 2, the marking member 6 is lowered, and the paper P <b> 1 is sandwiched between the marking member 6 and the cradle 7. As a result, a crease is made on the paper P1 (FIG. 4).

  Thereafter, the sheet P1 with the crease is conveyed to the folding processing apparatus B (FIG. 5) and temporarily stored in the middle folding processing tray 10 (FIG. 6). The above operation is repeated for a predetermined number of sheets (FIG. 7), and when a predetermined number of sheet bundles P1 to Pn are stored (FIG. 8), the rear end fence 11 lifts the sheet bundle to the folding position (FIG. 9). ), The folding plate 8 is advanced to push the crease portion attached to the sheet, and the folding plate 8 is pushed into the nip of the folding roller pair 9 to perform folding processing (FIG. 10), and is discharged to the stacking tray 12 (FIG. 11). , FIG. 12). The process of creating one sheet bundle is repeated for a predetermined number of booklets, and is sequentially stacked on the stacking tray 12.

  13 and 14 are diagrams showing a schematic configuration of the crease forming mechanism. In the figure, the marking member 6 of the crease marking mechanism C is composed of a marking blade C7 and a mounting base C6, and the marking blade C7 and the mounting base C6 are elastically biased upward by an elastic material C5 as a unit. The cam C4 is in contact with the upper surface of the mounting base C6. A pair of cams C4 is provided, and the drive of the drive motor C1 is transmitted by the deceleration transmission mechanism C2 and the transmission mechanism C3 and rotates. The cam C4 is an eccentric cam, and the marking blade C7 is driven in the vertical direction integrally with the mounting base C6 by rotating both in synchronization.

  A cradle C8 is installed at a position facing the marking blade C7, and the sheet is creased by sandwiching the sheet between the marking blade C7 and the cradle C8. FIG. 13 corresponds to the receiving position of the sheet at the position where the marking blade C7 is raised most, and FIG. 14 corresponds to the marking position on the sheet at the position where the marking blade C7 is lowered most. FIG. 15 is a schematic view of the state of FIG. 13 viewed from the front. Note that the sheet is held in the nip of the first conveying unit 1 during the folding operation shown in FIG. 4, but if a forward force is applied to the sheet as the marking blade C <b> 7 is lowered, the first sheet is held. The movement of the paper in the forward direction is allowed by the action of a one-way clutch (not shown) provided on the shaft portion of the conveying means 1.

  In this embodiment, two examples are presented as examples of the crease forming apparatus A as described above. One is an example in which one switchback path is provided, and the other is an example in which two transport paths are provided.

FIG. 16 is a diagram illustrating a configuration of a conveyance path in the crease marking apparatus A according to the first embodiment.
In the figure, the crease marking apparatus A includes a branching unit that switches the main path MP and the switchback path SB and the main path MP and the switchback path SB upstream of the marking member 6 and the cradle 7 in the sheet conveyance direction. t1 is provided. The branching means t1 is composed of, for example, a branching claw as shown in the main configuration diagram of FIG. 17, and is driven by a motor Mt1. Further, the first position is detected by detecting the filler provided coaxially with respect to the branching means t1 by the detection sensor SNt1, and further branched to the second position by driving the motor Mt1 by pulse control. The means t1 is moved.

  Further, as shown in FIG. 18, the branching means t1 is elastically biased so as to be always located at the first position by the elastic material SPt1, and moved to the second position of the branching means t1 by driving the solenoid St1. Also good.

  With these configurations, it is possible to switch to the main path MP side and the switchback path SB side by the branching means t1. Further, the transport means 1b and 2 located downstream from the branching portion of the main path MP and the switchback path SB can be rotated and reversed in the transport direction.

19 to 27, FIG. 31 and FIG. 32 are operation explanatory views showing operations when transporting using the switchback path SB.
When configured as shown in FIG. 16, the sheet Sn is conveyed into the crease device as shown in FIG. 19, and the rear end of the sheet Sn is branched between the main path MP and the switchback path SB as shown in FIG. When the point (in the present embodiment, immediately after the most downstream side of the branching unit t1) passes SB1, or after passing the sensor SN2 located upstream of the branching point, the branching unit t1 is switched to the switchback path SB side, As shown in FIG. 21, the conveying means 1b and 2 are reversed. As a result, the rear end of the sheet Sn is conveyed to the switchback path SB, and the rear end of the sheet Sn is retracted from the main path MP to the switchback path SB. Next, the sheet Sn stops at the position where the crease processing is performed, and then the branching unit t1 is switched to the original position, that is, the main path MP side.

  Next, as shown in FIG. 22, the next sheet Sn + 1 is conveyed while the sheet Sn is being folded (stopped) by the marking member 6 and the cradle 7. Normally, the next sheet Sn + 1 will collide if it is not on standby until it stops processing, decelerates, etc. until the processing of the sheet Sn is completed, but the rear end of the sheet Sn is retracted to the switchback path SB. As shown in FIG. 23, the sheet Sn + 1 can be transported without entering and colliding with the lower side of the sheet Sn.

  As shown in FIG. 24, when the folding process of the previous sheet Sn is completed before the leading edge of the next sheet Sn + 1 enters the nip of the transport unit 1b and the downstream transport is started, as shown in FIGS. In addition, both the sheets Sn and Sn + 1 can be conveyed downstream by the conveying means 1b. Then, as shown in FIG. 25, the trailing edge of the front sheet Sn is conveyed downstream as it passes over the nip of the conveying means 2, and as shown in FIG. After passing the sensor SN2 located upstream of SB1, the branching means t1 is switched to the switchback path SB side.

  After that, as shown in FIG. 27, the conveying means 1b and 2 are reversed to convey the trailing edge of the next sheet Sn + 1 to the switchback path SB and retract from the main path MP. Next, the branching means t1 is switched to the original position, that is, the main path MP side. By repeating this series of operations, even if sheets are continuously conveyed from the sheet conveying apparatus, the post-processing apparatus, or the image forming apparatus mounted upstream of the crease forming apparatus A, it is connected to the upstream side. The crease process can be continued without reducing the productivity of the apparatus.

  FIG. 43 is a block diagram illustrating a control configuration of an image forming system including the crease forming apparatus A, the folding processing apparatus B that performs folding processing, and the image forming apparatus PR. The crease forming apparatus A includes a control circuit equipped with a microcomputer having a CPU_A1, an I / O interface_A2, and the like. The CPU_A1 includes a CPU of the image forming apparatus PR, switches of an operation panel, and each sensor (not shown). Is input via the communication interface_A3, and the CPU_A1 executes predetermined control based on the input signal. Further, the CPU_A1 transmits / receives a similar signal to the folding processing device B via the communication interface_B1, and executes predetermined control based on the input signal. Further, the CPU_A1 controls driving of the solenoid and the motor via the driver and motor driver, and acquires sensor information in the apparatus from the interface. In addition, motor drive control is performed by the motor driver via the I / O interface_A2 in accordance with the control target and the sensor, and sensor information is acquired from the sensor. The control is based on a program defined by the program code while the CPU_A1 reads a program code stored in a ROM (not shown), expands it in a RAM (not shown), and uses the RAM as a work area and a data buffer. Executed.

FIG. 44 is a flowchart showing a control procedure of the crease forming apparatus A executed by the CPU_A1. This control corresponds to the operations shown in FIGS.
In this control, when the entrance sensor SN1 detects the leading edge of the sheet SN (step S101), the transport unit 1a is driven (step S102), and the sheet detection sensor SN2 provided in the branching unit SB1 detects the leading edge of the sheet SN. Then (step S103), the driving of the conveying means 1b and 2 is started (step S104: FIG. 19). Next, when the sheet detection sensor SN2 detects the trailing edge of the sheet SN and conveys it by a predetermined amount, here the trailing edge of the sheet SN passes through the branch point SB1 (step S105), the branching unit t1 is moved to the switchback path SB side. Switching (step S106: FIG. 20), the conveying means 1b and 2 are reversed, and the sheet SN is switched back to the crease position (step S107: FIG. 21).

  Next, the branching means t1 is switched to the main path MP side (step S108: FIG. 22), the crease member 6 is lowered and the crease process is executed (step S109: FIG. 22), and the crease process is completed. Then, the sheet SN is conveyed downstream by the conveying means 1b and 2 (step S110: FIGS. 23 and 24). The operations from step S105 to step S110 are continued until the job is completed (step S111).

Here, the condition for the above configuration and control to be satisfied is that, in the sheets Sn and Sn + 1 continuously conveyed from the upstream, the rear end of the sheet Sn to be subjected to the crease process is the main path MP and the switchback path SB. In order to start the switchback operation after passing through the branch point SB (see FIG. 20), the conveying means 1b or 2 starts to decelerate, stops, and then switches back (see FIG. 21). Stop and perform the crease process (FIG. 22), and after finishing the crease process (see FIG. 23), the transport speed of the previous sheet Sn is set to Sn + 1 in order to receive the next sheet Sn + 1 in the stopped transport unit 1b. After the speed is increased to the transport speed, the transport interval must be such that the leading edge of the next sheet Sn + 1 reaches the nip of the transport unit 1b. (See Figure 24)
However, even if the interval between the sheets conveyed from the upstream is short and the above condition cannot be satisfied, the leading edge of the next sheet Sn + 1 can be obtained by setting the conveying roller constituting the conveying unit 1b to be separated as shown in FIG. Even if the previous paper Sn being transported by the transport means 2 has not reached the transport speed of the next paper Sn + 1 by the time the paper enters the nip of the transport means 1b, it does not interfere with the transport of the paper as shown in FIG. Absent.

  Then, when the folding process of the previous sheet Sn is completed and the conveying units 2 and 1b are at the same speed as the conveying speed of the next sheet Sn + 1, based on the rollers of the conveying unit 1b separated as shown in FIG. By returning, the previous sheet Sn and the next sheet Sn + 1 can be transported in an overlapping manner. This makes it possible to perform the crease process without reducing productivity.

FIG. 45 is a flowchart showing a control procedure at this time.
This control procedure is obtained by adding steps S201 to S206 to steps S104 to S105 in the flowchart of FIG. 44. After driving the conveying units 1b and 2 in step S104, whether the sheet is the first sheet of the job. Whether or not it is the first sheet is checked in the same manner as in FIG. 44 after step S105. If it is the second and subsequent sheets, the rollers of the conveying means 1b are separated to release the nip (step S202), wait until the folding process of the front sheet Sn is completed, and when the folding process is completed ( In step S203), the conveying units 1b and 2 are driven and wait until the conveying speed of the conveying units 1b and 2 and the conveying speed of the next sheet become the same speed (step S205). The roller is returned to the original position to nip the sheet (step S206), and the processing after step S105 is executed.

  If the job is not completed in step S111, the process returns to step S105 to determine the state of the sheet detection sensor SN2. At this time, in the crease device A as shown in FIG. During the process, the next sheet is in the state of step S104, the operation state of FIG. 22 in the figure, and the operations of a plurality of sheets are performed in parallel.

  29 and 30 are diagrams showing the configuration and operation of the conveying means 1b. In these drawings, the transport unit 1b includes a transport drive motor Mb1- (a) and a separation motor Mb1- (b), and the driving force of the separation motor Mb1- (b) is transported by a belt (transport roller). ) Is transmitted to b1. In FIG. 29, the upper side is a driving roller, and the opposing roller is a driven roller. The driven roller is elastically biased upward by the elastic member SPb1- (a), pressurizes the nip of the transport means b1, and applies a transport force to the drive roller. The drive system belt pressurizes idler roller Rb1 with elastic material SPb1- (b) to apply tension to the belt.

  The separation motor Mb1- (b) drives the cam Cb1. The shaft of the conveying means b1 is loosely fitted to the cam Cb1, and the driving roller of the conveying means b1 moves in the vertical direction in accordance with the rotation operation of the cam Cb1. Further, since the vertical position of the conveying means b1 changes depending on the rotational position of the cam Cb1, the rotational position of the cam Cb1, and consequently the vertical position of the conveying means b1, is detected by detecting the filler on the cam with the sensor SNb1. To do.

  In order to separate the conveying means b1, as shown in FIG. 30, the cam Cb1 is rotated clockwise (in the direction of the arrow in the figure) to move the driving roller of the conveying means b1 upward, and the conveying means b1 is driven accordingly. The belt of the drive system is maintained in a state where tension is applied by elastically urging the idler roller Rb1 outward (in the direction of the arrow in the figure) by the elastic material SPb1- (b), and the conveyance driving motor Mb1- The driving force (a) can be transmitted.

  In the transport unit 1b, when the previous sheet Sn and the next sheet Sn + 1 overlap, the transport unit 1b on the side in contact with the previous sheet Sn is a driving roller, and the side in contact with the other next sheet Sn + 1 is a driven roller. (See FIG. 29) As shown in FIG. 31, even if the leading edge of the next sheet Sn + 1 enters the conveying means 1b that is stopped or accelerated, the surface of the next sheet Sn + 1 comes into contact with the driven roller. Thus, the surface of the paper and the conveying means 1b can be prevented from being rubbed and soiled.

  Further, when the sheet Sn that has finished the crease process is accelerated from the stopped state to the same speed as the conveyance speed of the next sheet Sn + 1, the driving roller of the conveyance unit 1b and the conveyance unit 2 are operated in synchronization with each other, By returning the transporting unit 1b that has been separated from the transporting speed of the next sheet Sn + 1 to the original speed, it is possible to prevent the front surface of the previous sheet Sn and the transporting unit 1b from being rubbed and soiled. The sheet Sn and the next sheet Sn + 1 can be stacked and conveyed downstream.

  Further, a one-way clutch is inserted into the roller shaft on the driving side of the transport unit 1b so that the transport unit 1b follows (follows) the downstream transport operation by the transport unit 2 of the paper Sn that has been subjected to the folding process. Then, even if the surface of the sheet Sn and the drive roller of the transport unit 1b come into contact with each other, it is possible to prevent rubbing and contamination. At this time, that is, when the previous sheet Sn that has finished the crease process is conveyed downstream from the stopped state by the conveying unit 2, the conveying unit 1 b also increases the speed of the next sheet Sn + 1. Until the speed is the same, it is necessary to drive the conveying means 1b so that the speed of the conveying means 1b is equal to or lower than the speed of the downstream conveying means 2. Otherwise, a paper jam occurs. Then, after the conveying means 1b is delayed and becomes the same speed as the conveying means 2, the conveying means (conveying roller: here the driving side roller) 1b which has been separated as shown in FIG. Sn and the next sheet Sn + 1 can be overlapped and conveyed downstream.

  On the other hand, when the positional relationship between the driving and the driven of the conveying unit 1b is reversed, that is, when the previous sheet Sn and the next sheet Sn + 1 overlap, the side that contacts the previous sheet Sn is used as a driven roller, and the next sheet Sn + 1 is contacted. If the side to be driven is a driving roller, when the crease processing of the front sheet Sn is performed with the transport unit 1b separated (stopped), or after the process, the transport is started by the downstream transport unit 2, and the next When the next sheet Sn + 1 is transported to the transport unit 1b while the speed is increased to the transport speed of the sheet Sn + 1, the transport unit 1a and 1b are transported at a constant speed and the folds of the previous sheet Sn are conveyed. When the attaching process is completed and the conveying unit 2 finishes accelerating to the conveying speed of the next sheet Sn + 1, the conveying unit 1b that has been separated is returned to its original state, and the previous sheet Sn and the next sheet Sn + 1 are overlapped and then downstream. Feed makes it possible, and it is possible to prevent the front sheet Sn and the following sheet Sn + 1 of the surface and the conveying means 1b soiled by rubbing.

  FIG. 33 is a diagram illustrating a schematic configuration of the crease forming apparatus A according to the second embodiment. The second embodiment is another example of maintaining productivity. As shown in the figure, a plurality of conveyance paths, here, first and second branches are provided upstream of the marking member 6 and the cradle 7. A branching unit t2 is provided that distributes the transported paths SBa, SBb and the paper transported to the respective transported paths SBa, SBb at a branching unit SB2 upstream of the first and second branched transport paths SBa, SBb in the paper transport direction. It is a thing. Each branch conveyance path SBa, SBb is provided with conveyance means 1c, 1d and sheet detection sensors SN3, SN4. The branching means t2 is driven by driving means such as a motor or a solenoid.

  FIG. 34 to FIG. 42 are operation explanatory views for explaining the operation in the second embodiment for transporting using two transport paths.

  As shown in FIG. 34, the front sheet Sn is conveyed into the crease device A, and as shown in FIG. 35, the sheet Sn is one of a plurality of conveyance paths by the branching means t2, here, the first branch conveyance path. Transported to SBa. At this time, the branching unit t2 rotates about the base end as a rotation shaft so as to open the upper first branch transport path SBa side and close the lower second branch transport path SBb side. Next, as shown in FIG. 36, while the previous sheet Sn is being folded by the marking member 6 and the cradle 7, the next sheet Sn + 1 conveyed next is the second sheet t2 by the branching means t2. It is transported to the branch transport path SBb side. Normally, the next sheet Sn + 1 will collide if it is not waiting in the transport path by stopping transporting or decelerating until the processing of the sheet Sn is completed, but the first and second branch transport paths SBa and SBb. 37, as shown in FIG. 37, the leading edge of the next sheet Sn + 1 is always conveyed so as to overlap the trailing edge of the preceding sheet Sn, so that it can be conveyed without colliding.

  As shown in FIG. 37, if the folding process of the previous sheet Sn is completed before the leading edge of the next sheet Sn + 1 enters the nip of the conveying unit 1b, the conveying unit 1b and the previous sheet Sn and the next sheet are completed as shown in FIG. Both Sn + 1 can be transported downstream. Then, as shown in FIG. 39, the next sheet, that is, the next sheet Sn + 2, is conveyed by the branching means t2 to the first conveyance path SBa different from the next sheet Sn + 1 which is the previous sheet. In this state, when the previous sheet Sn exceeds the nip of the conveying means 2, the sheet continues to be conveyed, and when the next sheet Sn + 1 reaches the crease position, the next sheet Sn + 1 is stopped and the crease process is performed as it is. The succeeding next sheet Sn + 2 continues to be transported on a transport path different from the next sheet Sn + 1, that is, the first transport path SBa.

  By repeating this series of operations, even if sheets are continuously conveyed from the sheet conveying apparatus, the post-processing apparatus, or the image forming apparatus mounted upstream of the crease forming apparatus A, it is connected to the upstream side. The crease process can be continued without reducing the productivity of the apparatus.

FIG. 46 is a flowchart showing a control procedure of the crease forming apparatus A executed by the CPU_A1. This control corresponds to the operations shown in FIGS.
In this control, when the entrance sensor SN1 detects the leading edge of the sheet (step S301), the conveying means 1a, 1c, 1d are driven (step S302), and if the sheet is the first sheet of the job (step S303—YES), The branching means t2 is switched so as to be transported to the default transport path, here the first branch transport path SBa (step S304), and the sheet detection sensors S3 and S4 wait for sheet detection (step S306: FIG. 35). On the other hand, if it is not the first sheet of the job (step S303-NO), the branching unit t2 is switched so that it is transported to the second branch transport path SBb if it is the second transport path different from the preceding sheet. (Step S305), paper detection of the paper detection sensors S3 and S4 is awaited (Step S306: FIG. 36).

  When the sheet detection sensors S3 and S4 detect the leading edge of the sheet (step S306-YES), the sheet whose leading edge has been detected by the transporting means 1b and 2 is transported to the positions of the marking member 6 and the cradle 7 and the crease marking process is performed. (Step S308: FIG. 36, FIG. 39), it is transported downstream by the transport means 1b, 2 (Step S309: FIG. 38), and it is determined whether or not the job is finished (Step S310).

  If the job has not ended, the process returns to step S303, and the processing from step S307 to step S310 is executed up to the job. At that time, the next sheet is carried in parallel. For example, when the previous sheet Sn is subjected to the crease process (step S308), the determination of step S306 is performed on the next sheet Sn + 1 as shown in FIG. Become.

  However, even when the interval between the sheets conveyed from the upstream is short and the above condition cannot be satisfied, the conveying means 1b is used as shown in FIG. 40 as in the mechanism provided with the main path MP and the switchback path SB in the first embodiment. If the configuration allows separation, even if the previous sheet Sn transported by the transport unit 2 does not reach the transport speed of the sheet Sn + 1 by the time the leading edge of the next sheet Sn + 1 enters the nip of the transport unit 1b, FIG. As shown at 41, the conveyance of the paper is not hindered.

  When the crease forming process for the previous sheet Sn is completed and the conveying units 2 and 1b are at the same speed as the conveying speed of the next sheet Sn + 1, the separated conveying unit 1b is returned to the original state as shown in FIG. The previous sheet Sn and the next sheet Sn + 1 can be transported in an overlapping manner. This makes it possible to perform the crease process without reducing productivity.

  FIG. 47 is a flowchart showing the control procedure at this time.

  In this processing procedure, a process of separating the transport unit 1b is performed between Step S305 and Step S306 (Step S401), and a process of returning the transport unit 1b (Step S402) is performed between Step S308 and Step S309. . The other processes are the same as the processes from step S301 to step S310 in FIG.

  Further, the mechanism for preventing the conveying means b1 and the paper surface from being rubbed and soiled is the same as that shown in FIGS. 29 and 30 in the first embodiment. Further, the case where the positional relationship between the driving and the driven of the conveying unit 1b is reversed is the same as in the first embodiment.

  In this manner, also in the second embodiment, efficient crease processing can be performed without reducing productivity and without contaminating the paper surface.

As described above, according to the present embodiment,
1) By providing a transport path for evacuation (Example 1) or a plurality of transport paths (Example 2), while the previous sheet SN is stopped for a predetermined time for the crease processing, Even if the paper Sn + 1 catches up, it is transported downstream as it is without causing paper jamming, and the subsequent next paper Sn + 1 is stopped for a certain period of time to perform the crease process, and before being accepted again. The sheet conveyance interval can be restored.
2) This makes it possible to maintain the interval between continuously conveyed sheets, and as a result, the fold processing can be continuously performed without reducing productivity.
There is an effect.

1a, 1b, 1c, 1d, 2 Conveying means 6 Marking member 7 Receiving base t1, t2 Branch means A Folding device A1 CPU
MP main path PR Image forming apparatus SB Switchback path SB1, SB2 Branch portion SBa First transport path SBb Second transport path

JP 2004-284774 A Japanese Patent No. 3617936 Japanese Patent No. 4355255

Therefore, a creasing device called a creaser that prevents the toner from peeling off by pre-scoring the folded portion of the paper before the folding process such as folding the paper bundle in two and making the outer paper easy to break. Is already known. In such a creasing device causes the traveling roller, is adapted to perform creasing in Ri搬 feeding direction perpendicular to the direction by the method such as baked laser, or pressed by creasing blade.

Patent Documents 1 to 3 disclose a technique for transporting sheets in a superimposed manner. On the other hand, since the crease process is temporarily stopped and processed at that position, a certain time is required for the process, and the productivity is limited. Conditions in fold marks, especially is involved in productivity and is intended to be attached in a press system becomes severe.

Claims (8)

  1. In the crease device having a crease unit in the paper conveyance path, and creases the sheet conveyed by the conveyance unit by the crease unit,
    A first transport path for transporting the paper transported from the front stage to the marking means position and transporting it to the rear stage;
    A second transport path branched from the first transport path in a direction opposite to the paper transport direction;
    Branching means for leading from the first transport path to the second transport path;
    Control means for controlling the conveying means, the crease marking means, and the branching means;
    With
    The control means includes
    When the paper is transported to the marking means position, after the rear end of the front paper transported first exceeds the branching means, the front paper is transported in the reverse direction,
    After conveying the trailing edge of the front sheet from the branching unit to the second conveyance path, the conveyance of the sheet is stopped so that the crease position corresponds to the position of the crease unit;
    While the previous sheet is being conveyed in the reverse direction by the conveying means, or before the next sheet conveyed while the crease is being creased by the crease attaching means, before reaching the crease means. A crease forming apparatus that discharges a front sheet from a crease forming unit.
  2. In the crease device having a crease unit in the paper conveyance path, and creases the sheet conveyed by the conveyance unit by the crease unit,
    A first transport path for transporting the paper transported from the front stage to the marking means position and transporting it to the rear stage;
    A third and fourth transport path that branches from the upstream side of the first transport path and merges on the downstream side;
    Branching means for selecting the third or fourth transport path from the first transport path and guiding the paper;
    Control means for controlling the conveying means, the crease marking means, and the branching means;
    With
    The control means controls the branching means;
    When transporting paper to the marking means position,
    Transport the previous paper transported first to one of the third or fourth transport path,
    Next transport the next paper to the other of the third or fourth transport path,
    Stopping the sheet conveyed from the one conveyance path so that the crease position corresponds to the crease position;
    While the next sheet is being conveyed by the conveying unit or while the previous sheet is being creased by the crease unit, the previous sheet is removed before reaching the crease unit. A crease forming apparatus for discharging paper from a crease attaching unit.
  3. The crease marking apparatus according to claim 1 or 2,
    A crease forming apparatus that passes through a branch portion on the crease forming means side in a state in which a rear end portion of the front sheet and a front end portion of the next sheet are overlapped.
  4. The crease marking apparatus according to claim 3, wherein
    A conveying means is provided between the branch portion and the crease marking means,
    The crease forming apparatus is characterized in that the nip of the transport unit is opened when passing through the branch part on the crease attaching unit side in a state where the leading end portion of the next sheet is overlapped.
  5. The crease marking apparatus according to claim 3, wherein
    A conveying means is provided between the branch portion and the crease marking means,
    2. A crease forming apparatus according to claim 1, wherein when the leading end portion of the next sheet passes through the branch portion on the crease attaching unit side, the conveying unit rotates with the sheet.
  6. The crease marking apparatus according to any one of claims 1 to 5,
    An image forming apparatus for forming an image on paper;
    An image forming system comprising:
  7. In the paper conveying method of the crease device, which has a crease means in the paper conveyance path, and creases the paper conveyed by the conveyance means by the crease means,
    A first transport path for transporting the paper transported from the front stage to the marking means position and transporting it to the rear stage;
    A second transport path branched from the first transport path in a direction opposite to the paper transport direction;
    Branching means for leading from the first transport path to the second transport path;
    With
    When the paper is transported to the marking means position, after the rear end of the front paper transported first exceeds the branching means, the front paper is transported in the reverse direction,
    After conveying the trailing edge of the front sheet from the branching unit to the second conveyance path, the conveyance of the sheet is stopped so that the crease position corresponds to the position of the crease unit;
    While the previous sheet is being conveyed in the reverse direction by the conveying means, or before the next sheet conveyed while the crease is being creased by the crease attaching means, before reaching the crease means. A paper conveying method for a crease forming apparatus, wherein the front paper is discharged from a crease attaching means.
  8. In the paper conveying method of the crease device, which has a crease means in the paper conveyance path, and creases the paper conveyed by the conveyance means by the crease means,
    A first transport path for transporting the paper transported from the front stage to the marking means position and transporting it to the rear stage;
    A third and fourth transport path that branches from the upstream side of the first transport path and merges on the downstream side;
    Branching means for selecting the third or fourth transport path from the first transport path and guiding the paper;
    With
    When transporting paper to the marking means position,
    Transport the previous paper transported first to one of the third or fourth transport path,
    Next transport the next paper to the other of the third or fourth transport path,
    Stopping the sheet conveyed from the one conveyance path so that the crease position corresponds to the crease position;
    While the next sheet is being conveyed by the conveying unit or while the previous sheet is being creased by the crease unit, the previous sheet is removed before reaching the crease unit. A paper conveying method for a crease forming apparatus, wherein the paper is discharged from the crease attaching means.
JP2010119879A 2010-05-25 2010-05-25 Fold marking device, image forming system, and paper conveying method Pending JP2011246221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010119879A JP2011246221A (en) 2010-05-25 2010-05-25 Fold marking device, image forming system, and paper conveying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010119879A JP2011246221A (en) 2010-05-25 2010-05-25 Fold marking device, image forming system, and paper conveying method

Publications (1)

Publication Number Publication Date
JP2011246221A true JP2011246221A (en) 2011-12-08

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018048028A (en) * 2017-11-22 2018-03-29 株式会社リコー Sheet folding device, image forming system, and sheet folding method
US10105968B2 (en) 2014-05-13 2018-10-23 Ricoh Company, Ltd. Sheet processing device and image forming system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10105968B2 (en) 2014-05-13 2018-10-23 Ricoh Company, Ltd. Sheet processing device and image forming system
US10363757B2 (en) 2014-05-13 2019-07-30 Ricoh Company, Ltd. Sheet processing device and image forming system
JP2018048028A (en) * 2017-11-22 2018-03-29 株式会社リコー Sheet folding device, image forming system, and sheet folding method

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