Sheet processing device, laminate processing device, image formation device, and image formation system

Abstract

To provide a sheet processing device capable of shifting in the main scanning direction (horizontal registration correction) without causing a twist in double-ply sheets.SOLUTION: The sheet processing device includes: a sheet peeling section; misalignment detection means capable of detecting the amount of misalignment in the width direction perpendicular to the conveying direction of the double-ply sheet transported toward the sheet peeling section and capable of detecting the amount of misalignment in the width direction of the sheet-like medium transported toward the sheet peeling section; misalignment adjustment means capable of adjusting the misalignment in the width direction of the double-ply sheet based on the amount of misalignment of the double-ply sheet; a winding member that winds up one of the double-ply sheets after peeling processing; and a winding unit capable of moving the winding member in the width direction. The misalignment adjustment means is capable of adjusting the misalignment in the width direction of the double-ply sheet based on the amount of misalignment of the sheet-like medium, and the winding member moves in synchronization with the misalignment adjustment means.SELECTED DRAWING: Figure 30

Description

[Technical field]

[0001] The present invention relates to a sheet processing apparatus, a lamination processing apparatus, an image forming apparatus, and an image forming system. [Background technology]

[0002] A technology known as lamination involves inserting an inner layer (paper, photographs, etc.) between two sheets that have been stacked and joined (connected) at one side (laminating sheet or laminating film), and then applying heat and pressure to bond the two sheets together.

[0003] Patent Document 1 also discloses a sheet peeling device that peels two stacked sheets and inserts inner pages between the sheets. The sheet peeling device of Patent Document 1 peels two stacked sheets with a sheet peeling unit consisting of a winding roller or the like, and can insert inner pages between the two sheets. Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional sheet peeling devices (sheet processing devices), if a two-ply sheet becomes misaligned in the width direction on the transport path, there is a risk that the peeling process will not be performed properly or that the inner paper will be inserted out of position relative to the two-ply sheet.

[0005] In response to this, Patent Document 2 discloses a technology in which a sheet conveying device clamps a sheet (recording medium) between registration rollers, and shifts the sheet in the main scanning direction (horizontal registration correction) while rollers upstream of the registration rollers are separated from the sheet.

[0006] However, the above technology (configuration) is based on the premise that rollers other than the registration roller are separated from the sheet during lateral registration correction, and in a sheet processing device that grips a double-ply sheet at two points in the conveying direction, there was a problem in which the double-ply sheet would become twisted.

[0007] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a sheet processing apparatus capable of performing a shift in the main scanning direction (horizontal registration correction) without causing a twist in two overlapping sheets. [Means for solving the problem]

[0008] The above problem is solved by a sheet processing apparatus that peels off two sheets of a two-ply sheet formed by overlapping two sheets and joining parts of the two sheets, and inserts at least one sheet-like medium between the two sheets, the sheet processing apparatus including a sheet peeling unit that performs peeling processing of the two-ply sheets and inserts the sheet-like medium between the two sheets in a peeled state, and a positional deviation detection unit that is capable of detecting a positional deviation amount in a width direction perpendicular to a predetermined conveying direction of the two-ply sheets that are conveyed toward the sheet peeling unit, and is capable of detecting a positional deviation amount in the width direction of the sheet-like medium that is conveyed toward the sheet peeling unit. The problem is solved by a sheet processing apparatus comprising: a misalignment adjustment means capable of adjusting the misalignment in the width direction of the two-ply sheets before the peeling process based on the amount of misalignment of the two-ply sheets detected by the misalignment detection means; a winding member that winds up one of the two-ply sheets after the peeling process; and a winding unit capable of moving the winding member in the width direction, wherein the misalignment adjustment means is capable of adjusting the misalignment in the width direction of the two-ply sheets based on the amount of misalignment of the sheet-like medium, and the winding member moves in synchronization with the misalignment adjustment means. Effect of the Invention

[0009] In the sheet processing apparatus of the present invention, the winding member moves in synchronization with the misalignment adjustment means, so that shifting in the main scanning direction (horizontal registration correction) can be performed without causing distortion in the two-ply sheet. [Brief description of the drawings]

[0010] [Figure 1] 1 is a diagram illustrating an overall configuration of a sheet processing apparatus according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a configuration diagram (part 1) showing a main part of the sheet processing apparatus shown in FIG. [Diagram 3] FIG. 2 is a second configuration diagram showing the main parts of the sheet processing apparatus. [Figure 4] FIG. 3 is a configuration diagram (part 3) showing the main parts of the sheet processing apparatus. [Diagram 5] FIG. 4 is a fourth configuration diagram showing the main parts of the sheet processing apparatus; [Figure 6] FIG. 5 is a configuration diagram (part 5) showing the main parts of the sheet processing apparatus. [Figure 7] FIG. 6 is a block diagram showing the main parts of the sheet processing apparatus; [Figure 8] FIG. 7 is a configuration diagram showing the main parts of the sheet processing apparatus; [Figure 9] FIG. 8 is a configuration diagram showing the main parts of the sheet processing apparatus; [Figure 10] FIG. 1 is a configuration diagram (part 1) showing a single insertion mode of the sheet processing apparatus. [Figure 11] FIG. 2 is a configuration diagram (part 2) showing the single insertion mode of the sheet processing apparatus. [Figure 12] FIG. 3 is a configuration diagram (part 3) showing the single insertion mode of the sheet processing apparatus. [Figure 13] FIG. 1 is a configuration diagram (part 1) showing a multiple insertion mode of the sheet processing apparatus. [Figure 14] FIG. 2 is a configuration diagram (part 2) showing a multiple insertion mode of the sheet processing apparatus. [Figure 15] FIG. 11 is a configuration diagram (part 3) showing a multiple insertion mode of the sheet processing apparatus. [Figure 16] FIG. 4 is a configuration diagram showing a multiple insertion mode of the sheet processing apparatus; [Figure 17] FIG. 9 is a configuration diagram showing the main parts of the sheet processing apparatus; [Figure 18] 3A and 3B are schematic diagrams of a peeling member included in the sheet processing apparatus. [Figure 19] 5A to 5C are schematic diagrams illustrating an example of a drive configuration for a peeling member. [Figure 20]1 is a perspective view showing a state in which a peeling member is inserted into a sheet S. FIG. [Figure 21] 9 is a perspective view showing a state of the peeling member and the sheet S in FIG. 8. FIG. [Figure 22] 9 is a perspective view (part 2) showing the state of the peeling member and the sheet S in FIG. 8. FIG. [Diagram 23] This is a modified example of the guide path for the two peeled sheets. [Figure 24] 1 is an overall configuration diagram showing an example of a lamination processing apparatus including a sheet processing apparatus according to the present invention; [Diagram 25] 1 is an overall configuration diagram showing an example of an image forming system including a lamination processing device according to the present invention; [Figure 26] FIG. 13 is an overall configuration diagram showing a modified example of an image forming system including a lamination processing device according to the present invention. [Figure 27] 1 is a first overall configuration diagram showing an image forming system externally equipped with a lamination device according to the present invention; [Figure 28] FIG. 2 is a second overall configuration diagram showing an image forming system externally equipped with a lamination device according to the present invention. [Figure 29] 2 is a hardware configuration diagram of a control block for controlling the operation of the sheet processing apparatus. FIG. [Diagram 30] 11 is a flowchart illustrating a series of operations from sheet feeding, inserting an inner sheet, to completing a lamination process. [Diagram 31] 1A is a top view showing the vicinity of a misalignment detection means, and FIG. 1B is a top view showing the vicinity of a misalignment adjustment means. [Diagram 32] 10 is a flowchart showing control for adjusting the positional relationship between a sheet S and an inner sheet P in the width direction. [Diagram 33] 13 is a top view showing the vicinity of a misalignment detection means and a misalignment adjustment means as Modification 1. FIG. [Diagram 34] 34 is a flowchart showing control for adjusting the positional relationship in the width direction between the sheet S and the inner paper P in the sheet peeling device of FIG. 33. [Diagram 35]FIG. 11 is a top view showing the vicinity of the positional deviation adjustment means as Modification 2. [Diagram 36] 36 is a flowchart showing control for adjusting the positional relationship between the sheet S and the inner paper P in the width direction in the sheet peeling device of FIG. 35. [Figure 37] FIG. 13 is a top view showing the vicinity of the misalignment detection means as Modification 3. [Figure 38] FIG. 13 is a diagram showing an example of a display screen of an operation display panel according to a fourth modified example. [Figure 39] FIG. 11 is a diagram showing another display screen on the operation display panel. [Diagram 40] 10 is a flowchart showing the control of lateral registration adjustment when a sheet S is peeled off and a middle sheet P is inserted. [Diagram 41] FIG. 1 is a configuration diagram (part 1) showing a guide member provided around a winding roller and a pair of exit rollers. [Diagram 42] FIG. 2 is a second diagram showing the configuration of the guide members provided around the winding roller and the pair of exit rollers. [Diagram 43] FIG. 11 is a configuration diagram (part 3) showing the guide members provided around the winding roller and the pair of exit rollers. [Diagram 44] FIG. 4 is a fourth diagram showing the configuration of the guide members provided around the winding roller and the pair of exit rollers. [Diagram 45] FIG. 45 is a configuration diagram showing an added winding roller in FIGS. 41 to 44. [Diagram 46] FIG. 1 is a configuration diagram (part 1) showing the operation of the winding roller. [Figure 47] FIG. 2 is a configuration diagram (part 2) showing the operation of the winding roller. [Figure 48] FIG. 3 is a configuration diagram (part 3) showing the operation of the winding roller. [Figure 49] FIG. 4 is a configuration diagram showing the operation of the winding roller; [Figure 50] FIG. 5 is a configuration diagram (part 5) showing the operation of the winding roller. [Figure 51] FIG. 11 is a configuration diagram (part 1) showing a modified example of the winding roller. [Figure 52] FIG. 2 is a configuration diagram (part 2) showing a modified example of the winding roller. [Figure 53] FIG. 11 is a configuration diagram (part 3) showing a modified example of the winding roller. [Figure 54] 5A and 5B are schematic diagrams showing the behavior of the pair of outlet rollers and the take-up roller during lateral registration correction when inserting an inner sheet, where FIG. 5A shows the behavior before correction and FIG. [Figure 55] 5A and 5B are schematic diagrams showing the behavior of the pair of outlet rollers and the take-up roller in lateral registration correction when inserting an inner sheet in the embodiment, where FIG. 5A is before correction and FIG. [Figure 56] FIG. 1 is a schematic diagram of a winding unit (part 1). [Figure 57] FIG. 2 is a schematic diagram (part 2) of a winding unit. [Figure 58] FIG. 3 is a schematic diagram of the winding unit (part 3). [Figure 59] 1A is a configuration diagram showing the winding roller and its drive unit (during winding), and FIG. 1B is a side configuration diagram seen from the direction of arrow A. FIG. [Figure 60] 1A is a configuration diagram showing the take-up roller and its drive unit (when an inner paper is inserted), and FIG. 1B is a side configuration diagram seen from the direction of arrow A. FIG. [Figure 61] 10 is a flowchart relating to automatic adjustment for aligning the positions of a sheet S and a middle sheet P. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] 1 is an overall configuration diagram of a sheet processing apparatus according to an embodiment of the present invention. The sheet processing apparatus 100 of this embodiment separates two stacked sheets (hereinafter referred to as sheets S) from each other, and inserts and holds a sheet-like medium (hereinafter referred to as an inner sheet P) between the separated sheets S.

[0012] Here, the sheet S is a two-ply sheet in which two sheets are stacked and a part (or one side) of the two sheets are joined together. For example, a two-ply sheet may be one in which one side is a transparent sheet such as a transparent polyester sheet and the other side is a transparent or opaque sheet, and the two sheets are joined together at one side. A laminate film is also included as a two-ply sheet.

[0013] The inner page P is an example of a sheet-like medium that is inserted between these two stacked sheets. In addition to plain paper, sheet-like media includes cardboard, postcards, envelopes, thin paper, coated paper (coated paper, art paper, etc.), tracing paper, and OHP sheets.

[0014] 1, the sheet processing apparatus 100 includes a sheet tray 102 as a first stacking means for stacking sheets S, a pickup roller 105 for feeding sheets S from the sheet tray 102, and a conveying roller pair 107. The sheet processing apparatus 100 also includes a paper feed tray 103 as a second stacking means for stacking inner sheets P, and a pickup roller 106 for feeding inner sheets P from the paper feed tray 103.

[0015] The sheet tray 102 is provided with a size sensor C6, which is a sheet size detection means for detecting the size (length in the conveying direction) of the sheet S, and the paper feed tray 103 is provided with a size sensor C7, which is a medium size detection means for detecting the size (length in the conveying direction) of the inner sheet P.

[0016] Each of the size sensors C6 and C7 includes a plurality of sensors arranged in a line in the conveying direction. The sensor detection results change depending on the size of the stacked sheets S (or inner pages P), so the conveying direction length of the sheets S (or inner pages P) can be detected.

[0017] A transport sensor C1 for detecting the transport position of the sheet S is provided downstream of the transport roller pair 107 in the transport direction, and a transport sensor C2 for detecting the transport position of the inner sheet P is provided downstream of the pickup roller 106 in the transport direction.

[0018] The length of the sheet S (or the inner sheet P) in the conveying direction may be detected using these conveying sensors C1 and C2.

[0019] The sheet processing apparatus 100 further includes, downstream of the conveying roller pair 107 and the pickup roller 106, an entrance roller pair 108 as a first conveying means, a winding roller 109 as a rotating member, an exit roller pair 113 as a second conveying means, and a paper discharge tray 104. Between the winding roller 109 and the exit roller pair 113, a peeling member 116 is provided as a peeling member movable in the width direction of the sheet S.

[0020] A transport sensor C3 that detects the transport positions of the sheet S and the inner paper P is provided downstream of the entrance roller pair 108 in the transport direction, and an abnormality detection sensor C4 that detects the state of the sheet S is provided downstream of the winding roller 109 in the transport direction. And a transport sensor C5 that detects the transport position of the sheet S is provided downstream of the exit roller pair 113 in the transport direction.

[0021] The pickup roller 105, the pair of conveying rollers 107, the pair of entrance rollers 108, and the winding roller 109 are an example of a first feeding means, and the pickup roller 106, the pair of entrance rollers 108, and the winding roller 109 are an example of a second feeding means.

[0022] An operation panel 10, which is a display operation means for displaying information on the sheet processing apparatus 100 and receiving operation inputs, is provided on the exterior of the sheet processing apparatus 100. The operation panel 10 also serves as a notification means for issuing a sensory signal to the user. Alternatively, a notification means other than the operation panel 10 may be provided separately in the sheet processing apparatus 100.

[0023] The sheet processing apparatus 100 of this embodiment stacks the sheets S and the inner pages P on separate trays, and while transporting the sheets S, separates and opens the two sheets, and inserts the inner pages P into the opening. Then, the sheets S with the inner pages P inserted therein are discharged and stacked on the discharge tray 104.

[0024] Fig. 2 is a configuration diagram (part 1) showing the main parts of the sheet processing apparatus shown in Fig. 1. As shown in Fig. 2, the entrance roller pair 108 and the exit roller pair 113 are, for example, two rollers in a pair, and are rotationally driven by an entrance roller pair motor 108a (see Fig. 29) and an exit roller pair motor 113a (see Fig. 29) as driving means. The entrance roller pair 108 is rotationally driven in one direction, and the exit roller pair 113 is rotationally driven in forward and reverse directions, thereby sandwiching and transporting the sheet S and the inner page P.

[0025] The entrance roller pair 108 transports the sheet S and the inner page P toward the exit roller pair 113. This transport direction is called the forward transport direction (the direction of the arrow A in FIG. 2).

[0026] Meanwhile, the pair of exit rollers 113 can switch their rotation between forward and reverse directions. The sandwiched sheet S can be transported toward the discharge tray 104 (see FIG. 1) in the forward transport direction, and can also be transported toward the winding roller 109 in the reverse direction (pull-back direction). This direction of transport toward the winding roller 109 (the opposite direction to the forward transport direction) is called the reverse transport direction (the direction of arrow B).

[0027] The sheet processing device 100 also includes a sheet peeling unit 1 between the pair of entrance rollers 108 and the pair of exit rollers 113. The sheet peeling unit 1 includes a winding roller 109, which is a rotating member, and a peeling member 116. The winding roller 109 is driven to rotate in the forward and reverse directions by a winding roller motor 109a (see FIG. 29), and the rotation direction can be switched between clockwise and counterclockwise.

[0028] The winding roller 109 has a roller member 111 and movable gripping means 110 that is provided on the roller member 111 and grips the sheet S. The gripping means 110 is configured to be rotatable relative to the roller member 111 by a gripping means motor 110a (see FIG. 29). The movable gripping means 110 is characterized in that it grips the leading edge of the sheet S between itself and the roller member 111. In the above, a case has been described in which the gripping means 110 is configured as a separate part from the roller member 111, but the gripping means 110 may be integrally formed on the outer periphery of the roller member 111.

[0029] 1 to 17, a series of operations of the sheet processing device 100, that is, operations from peeling off the sheet S to inserting the inner paper P, will be described. In addition, in Figs. 3 to 17, the same reference numerals are given to the same parts as in Figs. 1 and 2, and detailed explanations thereof will be omitted.

[0030] 1, the sheets S on the sheet tray 102 are stacked so that a portion of the joined two sheets is located downstream in the feed direction (conveying direction) of the pickup roller 105. Then, the sheet processing apparatus 100 picks up the sheet S on the sheet tray 102 with the pickup roller 105, and conveys it toward the entrance roller pair 108 by the conveying roller pair 107.

[0031] 2, the sheet S is conveyed by the inlet roller pair 108 toward the winding roller 109. Here, the sheet processing apparatus 100 conveys the sheet S with the side where one of the four sides of the sheet S, that is, the end portion, joined being the downstream side in the forward conveying direction (the direction of the arrow A in FIG. 2).

[0032] 3, the sheet processing apparatus 100 temporarily stops conveying the sheet S when the rear end of the sheet S in the forward conveying direction passes the winding roller 109. Note that these operations are triggered by detection of the leading end of the sheet S by the conveying sensor C3, and are performed by conveying the sheet S by a specified amount from the conveying sensor C3.

[0033] Next, as shown in FIG. 4, the sheet processing apparatus 100 opens the gripping means 110, reverses the rotation direction of the pair of outlet rollers 113, and conveys the sheet S toward the opening of the gripping means 110 in the reverse conveying direction (the direction of the arrow B).

[0034] 5, the sheet processing apparatus 100 stops conveying the sheet S when the edge of the sheet S is inserted into the open gripping means 110, and closes the gripping means 110 to grip the edge of the sheet S. These operations are performed by conveying the sheet S by a specified amount.

[0035] 6, the sheet processing apparatus 100 rotates the winding roller 109 counterclockwise to wind the sheet S around the winding roller 109. Here, the sheet S is wound around the winding roller 109 from the side of the two sheets that is not joined together.

[0036] As shown in Fig. 7, when the sheet S is wound around the winding roller 109, the difference in winding circumference (difference in winding amount) between the two overlapping sheets causes excess sheet on the inner circumference side, and slack occurs toward the joined end of the sheet S. As a result, a space g (slack space) is generated between the two sheets. By inserting the peeling member 116 into this generated space g from both sides of the sheet S, the space g between the two sheets can be reliably maintained. Note that these operations are triggered by detection of the leading edge of the sheet S by the transport sensor C5, and are performed by transporting the sheet S by a specified amount from the transport sensor C5.

[0037] Here, a supplementary explanation of the peeling member 116 will be given.

[0038] Fig. 18 is a schematic diagram of the peeling member 116 included in the sheet processing apparatus 100, and Fig. 19 is a schematic diagram showing an example of a drive configuration of the peeling member 116. Fig. 20 is a perspective view showing a state in which the peeling member 116 is inserted into the sheet S.

[0039] 18, the peeling member 116 has a height dimension that gradually increases from the center in the width direction toward the rear end when viewed from the upstream side in the conveying direction. Also, when viewed from the height direction, the dimension in the conveying direction gradually increases from the leading end toward the center. When viewed from the width direction, the peeling member 116 has a cross shape. Due to this cross shape, the peeling member 116 also functions as a branching member that guides the peeled sheets S in different directions.

[0040] As shown in FIG. 19, in this embodiment, two peeling members 116 are disposed facing each other, and are configured to approach / separate from each other by (a) a belt drive, or (b) a rack and pinion, or the like.

[0041] Specifically, in (a) belt drive, a belt 32 is stretched between a drive pulley 30a and a driven pulley 30b, and two peeling members 116a, 116b are attached to face each other on the belt 32. Here, one peeling member 116a is connected to the lower belt 32, and the other peeling member 116b is connected to the upper belt 32.

[0042] In addition, the drive pulley 30a is provided with a drive transmission gear 34, and the rotation output of a peeling member motor 36 is transmitted to this drive transmission gear 34 via a motor output gear 35. In other words, the rotation output of the peeling member motor 36 is transmitted to the belt 32.

[0043] Therefore, rotating the peeling member motor 36 clockwise (as viewed from the front in the figure) can move the peeling members 116a, b closer to each other, and rotating the peeling member motor 36 counterclockwise can move the peeling members 116a, b farther apart from each other.

[0044] In the (b) rack and pinion, two racks 42a, b that mesh with one pinion 40 are provided extending in opposite directions, and two peeling members 116a, b are attached to the racks 42a, b facing each other. A drive transmission gear 44 is provided on the pinion 40, and the rotational output of a peeling member motor 46 is transmitted to the drive transmission gear 44 via a motor output gear 45. That is, the rotational output of the peeling member motor 46 is transmitted to the racks 42a, b, respectively.

[0045] Therefore, rotating the peeling member motor 46 clockwise (as viewed from the front in the figure) can move the peeling members 116a, b closer to each other, and rotating the peeling member motor 46 counterclockwise can move the peeling members 116a, b farther apart from each other.

[0046] As described above, the peeling member 116 of this embodiment has the above-mentioned shape and is configured to be movable in the width direction of the sheet S, so that it can be smoothly inserted into the space g generated in the sheet S as shown in FIG.

[0047] Returning to the explanation of the series of operations of the sheet processing apparatus 100, the sheet processing apparatus 100 rotates the winding roller 109 clockwise with the peeling member 116 inserted into the space g generated in the sheet S (see FIG. 7), and moves the peeled space g of the sheet S to the rear end in the forward conveying direction (the direction of the arrow A in FIG. 2) of the sheet S, as shown in FIG. 8. Then, when the specified amount of movement has been reached, the gripping means 110 is released, and the rear end of the sheet S is separated into upper and lower parts.

[0048] In this state, the sheet processing apparatus 100 temporarily stops conveying the sheet S, and then moves the peeling member 116 further in the sheet width direction to peel off the entire rear end of the sheet S. Note that these operations are triggered by detection of the leading edge of the sheet S by the conveying sensor C5, and are performed by conveying the sheet S by a specified amount from the conveying sensor C5.

[0049] Fig. 21 is a perspective view showing the state of the peeling member 116 and the sheets S in Fig. 8. The peeling member 116 also functions as a branching member that guides the peeled sheets S in different directions (see the cross shape in Fig. 18), so that the two sheets of the sheets S are in positions that allow them to be transported along different paths.

[0050] Furthermore, because the peeling member 116 is configured to be movable in the width direction (see FIG. 19), it can be placed in a position suitable for supporting the posture of the sheet S, as shown in FIG. 22. Therefore, even if the size or stiffness of the sheet S changes, the sheet S can be guided in a desired branching direction. This makes it unnecessary to separately provide a branching member and a drive device for the branching member in order to branch the sheet across the entire width of the conveying path, thereby reducing costs compared to the conventional method.

[0051] 9, the sheet processing apparatus 100 rotates the pair of outlet rollers 113 counterclockwise from the state in which the entire rear end of the sheet S has been peeled off, and conveys the sheet S in the reverse conveying direction (the direction of the arrow B). That is, the two peeled sheets of the sheet S are guided in the vertical direction by the peeling member 116, and the two sheets are entirely peeled off from each other.

[0052] Then, the sheet processing apparatus 100 temporarily stops conveying the sheet S, and the joint portion r of the sheet S is gripped (nipped) by the pair of outlet rollers 113. Therefore, the sheet S is opened widely from the jointed side as an end.

[0053] These operations are triggered by detection of the leading edge of the sheet S by the conveyance sensor C5, and are performed by conveying the sheet S by a designated amount from the conveyance sensor C5.

[0054] Next, the operation of inserting the inner sheet into the peeled sheet S will be described.

[0055] The sheet processing device 100 of this embodiment can insert one or more inner sheets P into the sheet S depending on the size (length in the transport direction) of the sheet S and the size (length in the transport direction) of the inner sheets P. First, a single insertion mode in which one inner sheet P is inserted into the sheet S will be described with reference to Figures 10 to 12, and then a multiple insertion mode in which multiple inner sheets P are inserted into the sheet S along the transport direction will be described with reference to Figures 13 to 16.

[0056] (single insert mode) As shown in FIG. 10, the sheet processing device 100 rotates the entrance roller pair 108 and transports the inner sheet P transported from the paper feed tray 103 (see FIG. 1) via the transport roller pair 117 in the forward transport direction (the direction of arrow A in FIG. 10) toward the exit roller pair 113.

[0057] 11, the sheet processing apparatus 100 rotates the pair of outlet rollers 113 to merge the sheet S and the inner page P, and inserts the inner page P into the sheet S that has been opened.

[0058] 12, the sheet processing apparatus 100 transports the sheet S with the inserted inner paper P in the forward transport direction (the direction of arrow A in FIG. 12) by the exit roller pair 113, thereby overlapping the two sheets of the sheet S again and closing the opening. Then, the sheet S with the sandwiched inner paper P is discharged and stacked on the discharge tray 104 (see FIG. 1) by the exit roller pair 113 or a discharge roller pair 121 (see FIG. 24) arranged thereafter.

[0059] (multiple insert mode) Next, the multiple insertion mode will be described. The multiple insertion mode is a mode in which multiple inner sheets P (two sheets in the following embodiment) can be inserted in the sheet transport direction of one sheet S.

[0060] As shown in FIG. 13, the sheet processing apparatus 100 rotates the entrance roller pair 108 to transport the first inner sheet (hereinafter referred to as the first inner sheet P1) transported from the paper feed tray 103 (see FIG. 1) in the forward transport direction (the direction of arrow A in FIG. 2) toward the exit roller pair 113.

[0061] 14, the sheet processing apparatus 100 rotates the exit roller pair 113 to merge the sheet S and the first inner sheet P1, and inserts the first inner sheet P1 into the opened sheet S. At this time, the second inner sheet (hereinafter referred to as the second inner sheet P2) conveyed from the paper feed tray 103 (see FIG. 1) is conveyed toward the exit roller pair 113 in the forward conveying direction (the direction of the arrow A in FIG. 2).

[0062] Next, as shown in FIG. 15, the sheet processing apparatus 100 rotates the pair of inlet rollers 108 to merge the sheet S with the second inner sheet P2, and further inserts the second inner sheet P2 into the sheet S that has been opened.

[0063] Then, as shown in FIG. 16, the sheet processing device 100 transports the sheet S with the first inner sheet P1 and the second inner sheet P2 inserted in the forward transport direction (the direction of arrow A in FIG. 2) using the exit roller pair 113, thereby stacking the two sheets of the sheet S again and closing the opening.

[0064] Even if there are three or more inner sheets P, three inner sheets P can be sandwiched between the sheets S by repeating the above-mentioned operation.

[0065] As an alternative example, when the sheet processing apparatus is equipped with a heat and pressure device capable of heating and pressurizing the sheet S (see the pair of thermal fixing rollers 120 in FIG. 24), the sheet S may be conveyed to the heat and pressure device by switching the path using a branching member 118 as shown in FIG. 17. This applies not only to the multiple insertion mode but also to the single insertion mode.

[0066] In this manner, the sheet processing apparatus 100 of this embodiment can control the insertion process of the inner sheets P into the sheets S.

[0067] Next, a configuration in which the sheet processing apparatus 100 acquires the sizes (lengths in the conveying direction) of the sheets S and the inner sheets P and the number of inner sheets P to be sandwiched will be described.

[0068] 1, the sheet processing apparatus 100 of this embodiment includes a size sensor C6 that is a sheet size detection means, and a size sensor C7 that is a medium size detection means. If the length of the inner sheet P in the transport direction is equal to or less than a threshold based on the detection results of these sensors, the sheet processing apparatus 100 automatically switches to multiple insertion mode and performs insertion processing. On the other hand, if the length of the inner sheet P in the transport direction is equal to or more than the threshold, the sheet processing apparatus 100 automatically switches to single insertion mode and performs insertion processing.

[0069] In particular, when the length of the inner paper P in the transport direction is equal to or less than half the length of the sheet S in the transport direction, the insertion process may be performed by automatically switching to the multiple insertion mode. In addition, in the multiple insertion mode, the number of inner papers P to be sandwiched between the sheets S is calculated from the quotient of the size of the sheet S and the size of the inner paper P.

[0070] Instead of or in addition to the size sensors C6 and C7, transport sensors C1 and C2 may be used.

[0071] In this manner, the sheet processing apparatus 100 of this embodiment can automatically control the insertion process in accordance with the sizes of the sheets S and the inner pages P.

[0072] 1, the sheet processing apparatus 100 of this embodiment can load the sheets S and the inner pages P on separate trays and transport them separately. This eliminates the need to load the sheets S and the inner pages P in a predetermined order, improving convenience. Note that, in this embodiment, the sheets S are loaded on the tray 102 and the inner pages P are loaded on the tray 103, but this is not limiting. The inner pages P may be loaded on the tray 102 and the sheets S may be loaded on the tray 103.

[0073] (Modification) FIG. 23 shows a modified example of the guide path of the two peeled sheets. FIG. 23(a) shows a case where the two peeled sheets are guided from the joint r of the sheet S in the opposite direction to the conveying direction (the direction of the arrow B in FIG. 23(a)) as already shown in FIG. 9. Alternatively, as shown in FIG. 23(b), the upper sheet may be guided from the joint r of the sheet S in the conveying direction (the direction of the arrow A in FIG. 23(b)) and the lower sheet may be guided in the opposite direction to the conveying direction. Furthermore, as shown in FIG. 23(c), the upper sheet may be guided in the opposite direction to the conveying direction and the lower sheet may be guided in the conveying direction. As shown in FIG. 9(a), the two peeled sheets are guided in the opposite direction to the conveying direction after being branched by the peeling member 116, but the two peeled sheets may be guided in the same direction as the conveying direction after being branched by the peeling member 116.

[0074] Next, a lamination processing apparatus and an image forming system including the sheet processing apparatus according to the present invention will be described.

[0075] 24 is a diagram showing an overall configuration of an example of a lamination processing device equipped with a sheet processing device according to the present invention. The lamination processing device 200 includes the sheet processing device 100 described above, a branching member 118 for switching the conveying path of the sheet S, a pair of thermal fixing rollers 120 that are heat-pressurizing members capable of heating and pressing the sheet S, and a pair of discharge rollers 121 provided downstream of the pair of thermal fixing rollers 120.

[0076] This lamination processing device 200 is configured to perform a series of operations from feeding the sheets S, peeling them, inserting the inner sheets P, and laminating them by heat and pressure, all in one machine. This series of operations can be performed automatically without the need for human labor, making it more convenient than conventional techniques.

[0077] 25 is a diagram showing an example of an image forming system including a lamination device according to the present invention and an image forming apparatus. The image forming system 3001 includes a lamination device 200a as a lamination processing section in an internal paper discharge section of an image forming apparatus 300.

[0078] Here, the lamination processing device 200a is equipped with a sheet tray 102 for stacking the sheets S or the inner pages P, and is configured to be capable of feeding the sheets S and / or the inner pages P from the image forming device 300. Therefore, an image can be formed on the sheets S or the inner pages P in-line by the image forming device 300 (for example, a printer, a copier, etc.).

[0079] The configuration of the image forming apparatus 300 will be specifically described. As shown in Fig. 25, an intermediate transfer device 150 is provided inside the image forming apparatus 300. The intermediate transfer device 150 stretches an endless intermediate transfer belt 152 substantially horizontally around a plurality of rollers, and travels counterclockwise.

[0080] Below the intermediate transfer device 150, cyan, magenta, yellow and black imaging devices 154c, 154m, 154y and 154k are arranged in four-part tandem along the stretching direction of the intermediate transfer belt 152. Each imaging device 154 is configured by installing a charging device, a developing device, a transfer device, a cleaning device and the like around a drum-shaped image carrier that rotates clockwise in the figure. Below each imaging device 154, an exposure device 156 is provided.

[0081] A paper feed device 158 is provided below the exposure device 156. The paper feed device 158 includes a first paper feed cassette 160 that stores sheets S, and a second paper feed cassette 162 that stores inner sheets P. The first paper feed cassette 160 is an example of a third stacking means that stacks two-ply sheets, and the second paper feed cassette 162 is an example of a fourth stacking means that stacks sheet-like media.

[0082] A first paper feed roller 166 is provided at the upper right of the first paper feed cassette 160 to feed the sheets S in the first paper feed cassette 160 one by one into the paper transport path 164. Also, a second paper feed roller 168 is provided at the upper right of the second paper feed cassette 162 to feed the inner sheets P in the paper feed cassette one by one into the paper transport path 164.

[0083] The paper transport path 164 is formed from the bottom to the top on the right side of the image forming apparatus 300, and leads to a lamination device 200a in the image forming apparatus 300. On the paper transport path 164, a pair of transport rollers 170, a secondary transfer device 174 that contacts the intermediate transfer belt 152, a fixing device 176, a first paper discharge device 178 consisting of a pair of paper discharge rollers, and the like are provided in this order.

[0084] The first paper feed roller 166, the conveying roller pair 170, and the paper conveying path 164 are an example of a third feeding means that feeds a two-ply sheet (sheet S) from the first paper feed cassette 160 (third stacking means). The second paper feed roller 168, the conveying roller pair 170, and the paper conveying path 164 are an example of a fourth feeding means that feeds a sheet-like medium (intermediate paper P) from the second paper feed cassette 162 (fourth stacking means). Furthermore, the intermediate transfer device 150, the fixing device 176, and the like are an example of an image forming section that forms an image on the sheet-like medium (intermediate paper P).

[0085] Next, the operation of performing lamination processing after forming an image on a sheet medium (inner sheet P) in the image forming apparatus 300 of this embodiment will be described.

[0086] When forming an image on a sheet medium (a medium paper P), first, an original image is read by the image reading device 188, and then written by the exposure device 156. Next, a toner image of each color is formed on the image carrier of each of the image forming devices 154c, 154m, 154y, and 154k, and the toner images are transferred in sequence by primary transfer devices 180c, 180m, 180y, and 180k to form a color image on the intermediate transfer belt 152.

[0087] On the other hand, the image forming device 300 rotates the second paper feed roller 168 to feed the inner paper P and place it in the paper transport path 164. Then, the inner paper P is transported by the transport roller pair 170 through the paper transport path 164 and sent to the secondary transfer device 174 at the appropriate timing, and the color image formed on the intermediate transfer belt 152 as described above is transferred to the inner paper P by the secondary transfer device 174.

[0088] After the image is transferred to the inner sheet P, the image is fixed by a fixing device 176, and then the inner sheet P is transported by a first paper discharge device 178 to a lamination processing device 200a.

[0089] Moreover, the lamination processing device 200a rotates the pickup roller 105 to feed the sheet S loaded on the tray 102 to the sheet peeling section 1 (winding roller 109, peeling member 116). Then, in the sheet peeling section 1, the sheet S is peeled into two sheets, and the inner sheet P conveyed from the image forming device 300 is conveyed by the entrance roller pair 108, so that the inner sheet P is inserted between the two peeled sheets. Thereafter, the sheet S with the inner sheet P inserted is conveyed by the exit roller pair 113 to the thermal fixing section 50, and the sheet S with the inner sheet P inserted is heated and pressed (lamination process) by the thermal fixing roller pair 120 of the thermal fixing section 50.

[0090] In this way, the inner sheet P on which the image is formed and the sheet S are transported to the lamination device 200a, where the lamination process is carried out.

[0091] Since the image forming system 3001 of this embodiment has the above-mentioned configuration, first, the sheet S loaded in the first paper feed cassette 160 of the image forming apparatus 300 is transported to the lamination processing device 200a via the paper transport path 164, and the sheet S is peeled into two sheets in the sheet peeling section 1. Then, while the sheet S is being peeled in the lamination processing device 200a, the inner sheets P loaded in the second paper feed cassette 162 are transported via the paper transport path 164, the secondary transfer device 174, the fixing device 176, and the first paper discharge device 178, and an image is formed on the inner sheets P, and then the inner sheets P are transported to the lamination processing device 200a. After that, the inner sheets P on which the image has been formed can be inserted between the two peeled sheets to perform lamination processing.

[0092] Next, a modified example of an image forming system including the sheet processing apparatus according to the present invention and an image forming apparatus will be described.

[0093] 26 is a diagram showing an overall configuration of a modified image forming system including a lamination device according to the present invention and an image forming apparatus. This image forming system 4001 differs from the image forming apparatus 300 in FIG. 25 in that the image forming apparatus 400 includes a second paper discharge device 122 and a paper discharge tray 123.

[0094] When the image forming apparatus 400 does not perform lamination processing, it can form an image on the inner sheet P fed from the second paper feed cassette 162, and then discharge the inner sheet P on which the image has been formed directly to the paper discharge tray 123 by the second paper discharge device 122 consisting of a pair of paper discharge rollers. Therefore, when the image forming apparatus 400 does not perform lamination processing, it is not necessary to reduce the output speed of image formation, and it is possible to maintain the productivity of the image forming apparatus 400.

[0095] The image forming apparatus 400 may be configured so that the lamination device 200a is detachably attached to the internal paper discharge section of the image forming apparatus 400. In other words, the lamination device 200a may be configured to be removable from the image forming apparatus 400 when lamination is not required.

[0096] In addition, a paper feed tray 103 for loading the inner sheets P and a pickup roller 106 for feeding the inner sheets P from the paper feed tray 103 may be attached to the removed lamination processing device 200a so that it can be used as a standalone lamination processing device 200 similar to that shown in Figure 24.

[0097] The image forming system 3001 shown in Fig. 25 and the image forming system 4001 shown in Fig. 26 may be configured to include the sheet processing device 100 in the internal paper discharge section instead of the lamination processing device 200a. Also, in the image forming system 4001 shown in Fig. 26, the sheet processing device 100 may be configured to be detachable.

[0098] Moreover, the image forming system 3001 shown in FIG. 25 and the image forming system 4001 shown in FIG. 26 may further include a post-processing device such as a large-capacity paper discharge device (stacker) and / or a bookbinding device.

[0099] 25 and 26, when the sheets S loaded in the first paper feed cassette 160 of the image forming apparatuses 300 and 400 are passed through the fixing device 176, the sheets S are not adhered at the fixing temperature, but are adhered by applying heat at a higher temperature. Furthermore, the image forming apparatuses 300 and 400 use an electrophotographic method as a method for forming an image on the inner paper P, but this is not limited thereto, and known image forming methods such as an inkjet method or a stencil printing method may also be used.

[0100] 27 and 28 are overall configuration diagrams showing an image forming system equipped with a lamination processing device according to the present invention outside an image forming apparatus. In Fig. 27 and 28, the same components as those in Fig. 25 and 26 are given the same reference numerals and detailed explanations thereof are omitted.

[0101] As shown in FIG. 27, an image forming system 5001 differs from the image forming system 3001 in FIG. 25 and the image forming system 4001 in FIG.

[0102] The lamination processing device 200b includes a sheet tray 102 for stacking sheets S, and is configured such that the inner paper P can be fed from the image forming device 500 via a relay conveying device R. The conveying sensor C2 of the lamination processing device 200b is provided downstream of the entrance roller pair 130 in the conveying direction and upstream of the exit roller pair 132 in the conveying direction. Furthermore, a conveying roller pair 134 is provided upstream of the thermal fixing roller pair 120 of the lamination processing device 200b in the conveying direction, and a conveying roller pair 136 is provided downstream of the thermal fixing roller pair 120 in the conveying direction. Therefore, all of the following processes can be automatically performed: arbitrary image formation on the inner paper P by a copy or printer (image forming device 500), peeling of the sheet S, insertion of the inner paper P with the image formed on it into the peeled sheet S, and lamination of the sheet S with the inner paper P with the image formed on it inserted.

[0103] 28 is configured such that another post-processing device 250 (for example, a large-capacity paper discharge device (stacker) and / or a post-processing device such as a bookbinding device) is provided downstream of the lamination device 200b. Depending on the user's request, jobs that include lamination and jobs that do not include lamination can be performed in parallel, improving work efficiency.

[0104] Fig. 29 is a diagram showing an example of a hardware configuration for executing control processing executed in the sheet processing apparatus 100. As shown in Fig. 29, the sheet processing apparatus 100 includes a central processing unit (CPU) 901, a random access memory (RAM) 902, a read only memory (ROM) 903, a hard disk drive (HDD) 904, and an interface (I / F) 905, all of which are connected to each other.

[0105] The CPU 901 is a computing unit and controls the overall operation of the sheet processing apparatus 100. The RAM 902 is a volatile storage medium capable of reading and writing information at high speed, and is used as a working area when the CPU 901 processes information. The ROM 903 is a read-only non-volatile storage medium in which programs such as firmware are stored. The HDD 904 is a non-volatile storage medium capable of reading and writing information and having a large storage capacity, and in which an OS (Operating System), various control programs, application programs, etc. are stored.

[0106] The sheet processing apparatus 100 processes information processing programs (application programs) loaded into the RAM 902 from a control program stored in a ROM 903 using a calculation function provided in a CPU 901. A software control unit including various functional modules of the sheet processing apparatus 100 is configured by this processing.

[0107] A functional block that realizes the functions of the sheet processing apparatus 100 is configured by combining the software control unit configured in this manner with hardware resources mounted on the sheet processing apparatus 100. That is, the CPU 901, the RAM 902, the ROM 903, and the HDD 904 configure a controller 127 (control unit) that controls the operation of the sheet processing apparatus 100.

[0108] The I / F 905 operates the pickup roller motor 105a, the conveying roller pair motors 106a, 107a, the entrance roller pair motor 108a, the exit roller pair motor 113a, the discharge roller pair motor 121a, the size detection sensors C6, C7, the conveying sensors C1, C2, C3, C5, the abnormal state detection sensor C4, the winding roller motor 109a, the gripping means motor 110a, the lateral registration detection unit 47, the optical sensor 47a, the optical sensor motor 47b, the winding shift motor 201, the registration shift motor 202, the winding unit home position sensor 203, the registration unit home position sensor 204, the winding roller drive motor 205, the peeling member motor 36 (46), the operation panel 10, etc.

[0109] The controller 127 also obtains detection results from the size detection sensor C6, C7, the transport sensors C1 to C3 and C5, the abnormal state detection sensor C4, the optical sensor 47a, the home position sensors 203 and 204, and the like.

[0110] The winding roller motor 109a is a drive means for driving the winding roller. The gripping means motor 110a is a drive means for driving the gripping means. The winding shift motor 201 and the registration shift motor 202 are drive means for driving the winding unit 230 and the registration unit 231 during the registration shift operation. The winding roller drive motor 205 is a drive means for driving the winding roller. The peeling member motor 36 (46) is a drive means for driving the peeling member.

[0111] Fig. 30 is a flow chart for explaining a series of operations in the image forming system 3001 shown in Fig. 25, from feeding and peeling the sheet S, to inserting the inner sheet P with an image formed thereon onto the peeled sheet S, and completing the lamination process for the sheet S with the inner sheet P inserted. The flow chart in Fig. 30 will be used for explanation, indicating the numbers of the corresponding drawings. Note that, in the following, only the lamination process in the image forming system 3001 shown in Fig. 25 will be explained, but the lamination processes in the other image forming systems 4001, 5001, and 5002 shown in Figs. 26 to 28 are similar, so detailed explanations will be omitted.

[0112] First, in step S01, the image forming system 3001 judges whether or not the user has selected the multiple insertion mode. If the multiple insertion mode is selected, the user is prompted to select the number of inner sheets in step S02. This can be set, for example, using the operation panel 10.

[0113] On the other hand, if the multiple insertion mode has not been selected, the process proceeds to step S03, where the image forming system 3001 determines that the single insertion mode has been selected.

[0114] Next, in step S11, the lamination processing device 200a starts feeding the sheet S (see FIG. 1). Next, in step S12, it is determined whether the leading edge of the sheet S has reached the transport sensor C3 (see FIG. 2). In step S13, when the lamination processing device 200a determines that the sheet S has been transported a designated amount from the transport sensor C3, it temporarily suspends the transport (see FIG. 3). Next, in step S14, the gripping means 110 is opened, and in step S15, the sheet S is transported in the reverse transport direction (the direction of the arrow B in FIG. 4) (see FIG. 4).

[0115] In step S16, when the lamination device 200a determines that the sheet S has been conveyed a designated amount, in step S17, it temporarily stops conveying the sheet S. Then, in step S18, the gripping means 110 is closed to grip the edge of the sheet S (see FIG. 5).

[0116] Next, in step S19, the lamination processing device 200a rotates the winding roller 109 counterclockwise to wind the sheet S around the winding roller 109 (see FIG. 6). Then, in step S20, it is determined whether the leading edge of the sheet S has reached the conveyance sensor C5. In step S21, when the lamination processing device 200a determines that the sheet S has been conveyed a designated amount by the conveyance sensor C5, in step S22, it detects the state of the sheet S using the abnormal state detection sensor C4.

[0117] The abnormal state detection sensor C4 is an abnormality detection means that detects whether the dimension of the space g generated between two sheets of the sheet S (the amount of bending of one of the two sheets) exceeds a predetermined threshold value. In step S23, if the lamination processing device 200a determines from the detection result of the abnormal state detection sensor C4 that the state of the sheet S is normal (the dimension of the space g is equal to or greater than the predetermined threshold value), the lamination processing device 200a proceeds to step S24a.

[0118] On the other hand, if it is determined in step S23 that the state of the sheet S is abnormal (the dimension of the space g is below the predetermined threshold), the process proceeds to step S24b, where the lamination device 200a notifies the abnormality and stops the sheet processing.

[0119] When proceeding to step S24a, the lamination processing device 200a transports the sheet S in the direction opposite to the winding direction (the direction of the arrow A in FIG. 2), and transports the joint portion r downstream of the nip of the exit roller pair 113. This allows a space g to be formed between the two sheets of the sheet S at a position that matches the insertion position of the peeling member 116.

[0120] Then, the process proceeds to step S24c, where the lamination device 200a inserts the peeling member 116 into the resulting space g from both sides of the sheet S (see Figs. 7 and 20). Next, in step S25, with the peeling member 116 inserted from both sides of the sheet S, the lamination device 200a rotates the winding roller 109 clockwise this time, and transports the sheet S in the forward transport direction (the direction of arrow A in Fig. 2).

[0121] Next, in step S26, it is determined whether the leading edge of the sheet S has arrived at the transport sensor C5. In step S27, when the lamination device 200a determines that the sheet S has been transported a designated amount from the transport sensor C5, it opens the gripping means 110 in step S28.

[0122] Next, in step S29, the lamination device 200a temporarily stops conveying the sheet S after conveying the sheet S by a specified distance. Then, in step S30, the peeling member 116 is further moved in the sheet width direction (see FIGS. 8 and 22). This separates the rear ends of the two sheets of the sheet S into upper and lower parts.

[0123] In step S31, the lamination processing device 200a conveys the sheet S in the reverse conveying direction (the direction of the arrow B in FIG. 9). Next, in step S32, it is determined whether the leading edge of the sheet S has reached the conveying sensor C5. In step S33, when the lamination processing device 200a determines that the sheet S has been conveyed a designated amount from the conveying sensor C5, it temporarily stops the conveying in step S34 (see FIG. 9). This completes the peeling of the sheet S.

[0124] Next, in step S35, the lamination processing device 200a determines whether or not to form an image (inline) on the inner sheet P to be inserted into the sheet S. If inline, the process proceeds to step S36, where the lamination processing device 200a causes the image forming device 300 (400, 500) to start a print job and form an image on the inner sheet P. Then, the process proceeds to step S37.

[0125] On the other hand, if it is not inline in step S35, the process proceeds to step S37.

[0126] In step S37, the lamination device 200a transports the inner sheet P in the forward transport direction (the direction of arrow A in FIG. 10) and inserts the inner sheet P into the opened sheet S. Here, in the case of the single insertion mode, the operation is as shown in FIGS. 10 to 12, and in the case of the multiple insertion mode, the operation is as shown in FIGS. 13 to 16.

[0127] Next, in step S38, the lamination device 200a determines whether the selected number of inner sheets P have been inserted into the sheets S. If inserted, the process proceeds to step S39.

[0128] Next, in step S39, the path is switched by the branching member 118. In step S39, the sheet S with the inner paper P sandwiched therebetween is transported to the thermal fixing unit 50, and heat and pressure are applied to complete the lamination process (see FIG. 17).

[0129] In the case of inline (YES in step S35), the start of a print job is notified to the image forming apparatus 300 after sheet peeling is completed, and printing and transport of the inner pages P are carried out. In this case, the sheet processing apparatus is in a waiting state until the printed inner pages P are transported and reach the transport sensor C1. Therefore, taking into consideration the transport time of the printed inner pages P, the start of a print job may be notified to the image forming apparatus after the operation of the peeling member 116 shown in FIG. 7 is completed, for example. This can improve productivity.

[0130] Next, a configuration will be described that allows the two sheets constituting the sheet S to be satisfactorily peeled off and allows the inner sheet P to be inserted into the peeled sheet S without being misaligned in the main scanning direction (width direction).

[0131] As shown in FIG. 31 (and FIG. 1), the sheet processing apparatus 100 of this embodiment is provided with a misalignment detection unit 47 as a misalignment detection means and an outlet roller pair 113 that also functions as a misalignment adjustment means.

[0132] Then, the misalignment detection unit 47 (first misalignment detection means) and the pair of outlet rollers 113 (misalignment adjustment means) are used to adjust the lateral registration (amount of misalignment) of the inner sheet P with respect to the sheet S to a target value.

[0133] The details are explained below. Referring to Figure 31 (A), the positional misalignment detection unit 47 is capable of detecting the amount of positional misalignment (horizontal registration) in the width direction (direction perpendicular to the conveying direction, that is, the up-down direction in Figure 31) of the sheet S being conveyed in a predetermined conveying direction (the direction of the white arrow in Figure 31 (A)) toward the sheet peeling unit 19, and also functions as a positional misalignment detection means capable of detecting the amount of positional misalignment (horizontal registration) in the width direction of the inner paper P being conveyed in the direction of the white arrow toward the sheet peeling unit 19.

[0134] Specifically, the positional deviation detection unit 47 (positional deviation detection means) is composed of an optical sensor 47a, an optical sensor motor 47b, a feed screw 47c, a guide rod (not shown), a home position sensor 47d, and the like.

[0135] The optical sensor 47a is a reflective photosensor (consisting of a light-emitting element, a light-receiving element, etc.) installed upstream (on the right side in Figure 1) in the conveying direction (sub-scanning direction) relative to the sheet peeling section 19, and is configured to be able to move one end side (the lower end in Figure 31 (A)) within a widthwise range corresponding to the widthwise size M of the sheet S or inner paper P.

[0136] Specifically, the optical sensor 47a is formed with a female screw portion into which a feed screw 47c extending in the width direction is screwed, and a through hole portion into which a guide rod (not shown) installed parallel to the feed screw 47c is inserted, and is held so as to be movable in the width direction. The feed screw 47c is rotated in the forward and reverse directions by being driven by a bidirectional optical sensor motor 47b, so that the optical sensor 47a can move within the range indicated by the double arrow in FIG. 31(A).

[0137] The optical sensor 47a optically detects the position of one end edge of the sheet S that is sandwiched and transported by the inlet roller pair 108. Specifically, when the sheet S is detected by the transport sensor C3 (see FIG. 1), the optical sensor 47a, which is located at the home position (the position indicated by the dashed line in FIG. 31(A)) detected by the home position sensor 47d, moves in the width direction to a position where the optical sensor 47a detects the one end edge of the sheet S.

[0138] Then, the amount of positional deviation α (horizontal registration) from the center reference Z (which is the targeted position that is the center position in the width direction of the sheet regardless of the width direction size) is calculated from the movement distance of the optical sensor 47a from the home position (which can be calculated from the number of steps of the optical sensor motor 47b, etc.) and the width direction size M of the sheet S.

[0139] When the inside of the sheet P is transported, the positional deviation amount α' (horizontal registration) of the inside of the sheet P is detected by the positional deviation detection unit 47 in the same manner as when the sheet S is transported.

[0140] Generally, the size of the sheet S is larger than the size of the inner paper P not only in the width direction but also in the transport direction.

[0141] Further, the width direction size M of the sheets S and the inner pages P can be grasped based on the information of the sheets S and the inner pages P inputted to the operation panel 10.

[0142] On the other hand, referring to Figure 31 (B), the exit roller pair 113 functions as a misalignment adjustment means that can adjust the widthwise misalignment of the sheet S before the peeling process based on the amount of misalignment (horizontal registration) of the sheet S detected by the misalignment detection section 47 (misalignment detection means).

[0143] In detail, the exit roller pair 113 serving as the misalignment adjustment means is a conveying roller pair (conveying means) that clamps and conveys the sheet S when the peeling process is performed, and is configured to be movable in the width direction while clamping the sheet S by the moving mechanism 46. The moving mechanism 46 that moves the exit roller pair 113 in the width direction (the direction of the double arrow in FIG. 31(B)) can be configured, for example, with a holder that rotatably holds the exit roller pair 113, and a pinion and rack mechanism that moves the holder in the width direction.

[0144] Then, before the peeling process is performed, the moving mechanism 46 moves the pair of exit rollers 113 clamping the sheet S by a distance α in the opposite direction to the misalignment direction so that the misalignment amount α (horizontal registration) of the sheet S detected by the misalignment detection unit 47 is offset.

[0145] As a result, the center position in the width direction of the sheet S coincides with the center reference Z (target position). Therefore, compared to when the center position is deviated from the center reference Z, the peeling member 116 is smoothly inserted into the space g of the sheet S (see FIG. 20), and peeling failure is less likely to occur.

[0146] Before the above-mentioned positional misalignment adjustment is performed, the exit roller pair 113 is located at the home position detected by the home position sensor 46d, and is moved a desired movement distance α (determined from the number of steps of the motor of the movement mechanism 46, etc.) from the home position.

[0147] Alternatively, the pair of exit rollers 113 may be moved from the home position by the amount of positional deviation α before the sheet S is sandwiched, and the pair of exit rollers 113 may be controlled to return to the home position after the sheet S is sandwiched. In this case, it becomes easier to control the readjustment of the positional deviation of the sheet S corresponding to the amount of positional deviation α' of the inner sheet P, which will be described later.

[0148] Here, in this embodiment, based on the amount of positional misalignment α' of the inner paper P detected by the positional misalignment detection unit 47 (positional misalignment detection means), the widthwise positional relationship between the inner paper P and the sheet S is adjusted by the exit roller pair 113 (positional misalignment adjustment means) after the peeling process and before the insertion process.

[0149] In detail, as described above, first, based on the misalignment amount α of the sheet S detected by the misalignment detection unit 47 (misalignment detection means), the pair of outlet rollers 113 (misalignment adjustment means) adjusts the misalignment amount α of the sheet S to zero, and then the peeling process is performed. That is, the peeling process is performed in a state where the center position in the width direction of the sheet S is aligned with the center reference Z.

[0150] Then, before the insertion process, based on the misalignment amount α' of the inner-sheet P detected by the misalignment detection unit 47, the pair of exit rollers 113 (and the movement mechanism 46) moves the sheet S in the width direction so as to generate a misalignment amount α equivalent to the misalignment amount α' of the inner-sheet P. Specifically, the sheet S is moved by the same distance as the misalignment amount α' of the inner-sheet P, in the same direction as the misalignment direction of the inner-sheet P.

[0151] As a result, even if the inner sheet P is misaligned, the widthwise center position of the inner sheet P will match the widthwise center position of the sheet S. This makes it less likely that an insertion process will be performed with the inner sheet P misaligned relative to the sheet S in the width direction (for example, protruding).

[0152] Hereinafter, the above-mentioned control for adjusting the positional relationship between the sheet S and the inner paper P in the width direction will be collectively described with reference to FIG.

[0153] First, while the sheet S is being nipped and conveyed by the pair of inlet rollers 108, the lateral registration α of the sheet S is detected by the positional deviation detection unit 47 (step S30).

[0154] Thereafter, after the sheet S is sandwiched between the pair of exit rollers 113, the pair of exit rollers 113 is moved in the width direction by the movement mechanism 46 so as to adjust the lateral registration α of the sheet S (step S31). Thereafter, the sheet S whose lateral registration has been adjusted is subjected to a peeling process in the sheet peeling unit 19 (step S32).

[0155] Thereafter, while the inner sheet P is being sandwiched and transported by the entrance roller pair 108, the lateral registration α' of the inner sheet P is detected by the position shift detection unit 47 (step S33). Then, before the inner sheet P reaches the sheet peeling unit 19, the lateral registration of the sheet S sandwiched by the exit roller pair 113 is readjusted so as to match the lateral registration α' of the inner sheet P (step S34).

[0156] Then, with their widthwise center positions aligned, the inner sheet P is inserted into the sheets S (step S35), and this flow ends.

[0157] (Variation 1) In the sheet processing apparatus 100 in the first modification, the control for adjusting the positional relationship between the sheet S and the inner paper P in the width direction is different from that described using FIGS.

[0158] In detail, as shown in FIG. 33, in the first modified example, the inlet roller pair 108 serving as a pair of conveying rollers installed upstream in the conveying direction from the sheet peeling section 19 is configured to be movable in the width direction by the moving mechanism 46 while holding the sheet S or the inner paper P, and functions as a position misalignment adjustment means.

[0159] That is, in the first modification, the inlet roller pair 108 functioning as the misalignment adjustment means adjusts the misalignment of the sheet S and also adjusts the misalignment of the inner sheet P. Note that the movement mechanism 46 that moves the inlet roller pair 108 in the width direction (the direction of the double arrow in FIG. 33) can be configured, for example, with a holder that rotatably holds the inlet roller pair 108, and a pinion-rack mechanism that moves the holder in the width direction.

[0160] Then, first, based on the positional misalignment amount α of the sheet S detected by the positional misalignment detection unit 47 (positional misalignment detection means), the inlet roller pair 108 (positional misalignment adjustment means) adjusts the positional misalignment amount α of the sheet S to zero, and then performs the peeling process.

[0161] That is, before the sheet S reaches the position of the exit roller pair 113 (which does not function as a position misalignment adjustment means in variant example 1), the entrance roller pair 108 aligns the widthwise center position of the sheet S with the center reference Z, and then the peeling process is performed while the sheet S is clamped between the exit roller pair 113.

[0162] Then, before the insertion process, based on the positional deviation amount α' of the inner sheet P detected by the positional deviation detection unit 47, the inlet roller pair 108 (positional deviation adjustment means) adjusts the positional deviation amount α' of the inner sheet P to zero.

[0163] That is, before the inner sheet P reaches the position of the sheet peeling section 19, the pair of inlet rollers 108 aligns the widthwise center position of the inner sheet P with the center reference Z, and the inner sheet P is inserted into the sheet S at the position of the sheet peeling section 19 (the insertion process is performed).

[0164] As a result, the widthwise center position of the sheet S and the widthwise center position of the inner sheet P each coincide with the center reference Z. Therefore, a problem in which the insertion process is performed with the inner sheet P relatively misaligned in the width direction with respect to the sheet S (for example, protruding) is less likely to occur.

[0165] Hereinafter, the control for adjusting the positional relationship in the width direction between the sheet S and the inner paper P in the first modification will be collectively described with reference to FIG.

[0166] First, when the sheet S is being sandwiched and transported by the inlet roller pair 108, the misalignment detection unit 47 detects the lateral registration α of the sheet S (step S30). Then, while the sheet S is sandwiched and transported by the inlet roller pair 108, the inlet roller pair 108 is moved in the width direction by the movement mechanism 46 so that the lateral registration α of the sheet S is adjusted (step S31).

[0167] Thereafter, the sheet S, whose lateral resist has been adjusted, is subjected to a peeling process in the sheet peeling unit 19 (step S32).

[0168] Thereafter, while the inner-sheet P is being sandwiched and transported by the inlet roller pair 108, the lateral resistance α' of the inner-sheet P is detected by the positional deviation detection unit 47 (step S33). Then, before the inner-sheet P reaches the sheet peeling unit 19, the inlet roller pair 108 is moved in the width direction by the movement mechanism 46 while the inner-sheet P is sandwiched between the inlet roller pair 108 so that the lateral resistance α' of the inner-sheet P is adjusted (step S37).

[0169] Then, when the widthwise center positions of both sheets match the center reference Z, the inner sheet P is inserted into the sheets S (step S35), and this flow ends.

[0170] This allows the two sheets S1 and S2 constituting the sheet S to be peeled off satisfactorily, and the inner sheet P can be inserted into the sheet S without being misaligned in the width direction.

[0171] (Variation 2) As shown in FIG. 35, the sheet processing apparatus 100 in the second modified example is provided with a second positional misalignment detection unit 48 as a second positional misalignment detection means for detecting the amount of positional misalignment β (horizontal registration) of the sheet S clamped and transported by a pair of exit rollers 113 functioning as a positional misalignment adjustment means.

[0172] In detail, the positional deviation detection unit 48 (second positional deviation detection means) is composed of an optical sensor 48a, a motor 48b, a feed screw 48c, a guide rod (not shown), a home position sensor 48d, and the like.

[0173] The optical sensor 48a is a reflective photosensor installed near the sheet peeling section 19 (on the left side in Figure 35) and is configured to be movable at one end side (the lower end in Figure 35) within a widthwise range corresponding to the widthwise size M of the sheet S.

[0174] Specifically, the optical sensor 48a is formed with a female screw portion into which a feed screw 48c extending in the width direction is screwed, and a through hole portion into which a guide rod (not shown) installed parallel to the feed screw 48c is inserted, and is held so as to be movable in the width direction. The feed screw 48c is rotated in the forward and reverse directions by being driven by a bidirectional motor 48b, so that the optical sensor 48a can move within the range indicated by the double arrow in FIG.

[0175] Then, based on the misalignment amount β of the sheet S detected by the second misalignment detection unit 48 after the peeling process, the pair of exit rollers 113 adjusts the misalignment amount β of the sheet S to zero before the insertion process. In other words, after the peeling process and before the insertion process, the center position in the width direction of the sheet S is aligned with the center reference Z again.

[0176] As a result, even if the sheet S becomes misaligned after the peeling process, the misalignment can be readjusted, so that the insertion process is less likely to be performed with the inner paper P misaligned in the width direction relative to the sheet S (e.g., protruding).

[0177] Hereinafter, the control for adjusting the positional relationship in the width direction between the sheet S and the inner paper P in the second modification will be collectively described with reference to FIG.

[0178] First, while the sheet S is being nipped and conveyed by the inlet roller pair 108, the lateral registration α of the sheet S is detected by the positional deviation detection unit 47 (see FIG. 31(A)) (step S30).

[0179] Thereafter, after the sheet S is sandwiched between the pair of exit rollers 113, the pair of exit rollers 113 is moved in the width direction by the movement mechanism 46 so as to adjust the lateral registration α of the sheet S (step S31). Thereafter, the sheet S whose lateral registration has been adjusted is subjected to a peeling process in the sheet peeling unit 19 (step S32).

[0180] Thereafter, while the sheet S is sandwiched between the pair of exit rollers 113, the lateral resistance β of the sheet S is detected, and the pair of exit rollers 113 is moved in the width direction by the movement mechanism 46 so that the lateral resistance β is adjusted (step S38).

[0181] Then, while the inner sheet P is being sandwiched and transported by the entrance roller pair 108, the lateral resistance α' of the inner sheet P is detected by the position shift detection unit 47 (step S33). Thereafter, before the inner sheet P reaches the sheet peeling unit 19, the lateral resistance of the sheet S sandwiched by the exit roller pair 113 is readjusted so as to match the lateral resistance α' of the inner sheet P (step S34).

[0182] Then, with their widthwise center positions aligned, the inner sheet P is inserted into the sheets S (step S35), and this flow ends.

[0183] This allows the two sheets S1 and S2 constituting the sheet S to be peeled off satisfactorily, and the inner sheet P can be inserted into the sheet S without being misaligned in the width direction.

[0184] In the second modification, the detection of the lateral resist before the peeling process performed in step 30 can be performed by the second positional deviation detection unit 48 instead of the first positional deviation detection unit 47 (see FIG. 31(A)).

[0185] (Variation 3) In variant example 3, the positional deviation detection means shown in Figures 37(A) to (E) replace the positional deviation detection unit 47 shown in Figures 31(A) and 33 (or the second positional deviation detection unit 48 shown in Figure 35), respectively.

[0186] In the positional misalignment detection section 47 (positional misalignment detection means) shown in Figure 37 (A), the optical sensor 47a is configured to be able to move over the entire widthwise range (in the direction of the double arrow in Figure 37 (A)) corresponding to the widthwise size M of the sheet S or inner paper P.

[0187] When configured in this manner, the widthwise size M of the sheet S or the inner paper P can be detected by the optical sensor 47a, so that even if the widthwise size M is unknown, the positional misalignment of the sheet S or the inner paper P can be detected.

[0188] In contrast, in the positional misalignment detection unit 47 (positional misalignment detection means) shown in Figure 37 (B), the optical sensor is a CIS 47f (contact image sensor) fixed to one end side (the lower end part in Figure 37 (B)) of the widthwise range corresponding to the widthwise size M of the sheet S or inner paper P.

[0189] The CIS 47f has multiple optical sensors arranged in the width direction, and detects the position of one edge of the sheet S or the inner paper P based on the position of the optical sensor whose signal changes among the multiple optical sensors. When configured in this way, a mechanism for moving the optical sensor is not required.

[0190] 37(C), the optical sensor is a CIS 47f fixed over the entire width direction range corresponding to the width direction size M of the sheet S or the inner paper P. When configured in this manner, a mechanism for moving the optical sensor is not required, and the positional deviation of the sheet S or the inner paper P can be detected even if the width direction size M is unknown.

[0191] In contrast, in the misalignment detection unit 47 (misalignment detection means) shown in Figure 37 (D), the optical sensor 47g is fixed to one end (the lower end in Figure 37 (D)) for a widthwise range corresponding to the widthwise size M of the sheet S or inner paper P.

[0192] When configured in this manner, the entrance roller pair 108 is configured to be movable in the width direction, and the positional deviation amount α of the sheet S or the inner sheet P is determined based on the position at which the edge portion of one end of the sheet S or the inner sheet P clamped and transported by the entrance roller pair 108 is detected by the optical sensor 47g (the amount of movement of the entrance roller pair 108) and the width direction size M of the sheet S or the inner sheet P.

[0193] In addition, in the positional misalignment detection unit 47 (positional misalignment detection means) shown in Figure 37 (E), the optical sensor 47g is fixed to both ends (the lower end and the upper end in Figure 37 (E)) of the widthwise range corresponding to the widthwise size M of the sheet S or inner paper P.

[0194] When configured in this manner, the entrance roller pair 108 is configured to be movable in the width direction, and the positional deviation amount α of the sheet S or the inner sheet P is determined based on the position (the movement amount of the entrance roller pair 108) at which both end edges of the sheet S or the inner sheet P clamped and transported by the entrance roller pair 108 are detected by the optical sensor 47g, and the width direction size M of the sheet S or the inner sheet P.

[0195] Furthermore, even when a misalignment detection means is configured as shown in Figures 37(A) to (E), the two sheets S1 and S2 constituting the sheet S can be peeled off smoothly, and the inner sheet P can be inserted into the sheet S without being misaligned in the width direction.

[0196] (Variation 4) In the sheet processing device 100 in variant example 4, the position misalignment adjustment means is configured to be able to change the adjustment amount of the widthwise position to any value within the range in which the inner sheet P (inner sheet) does not protrude widthwise relative to the sheet S (film) after the insertion process.

[0197] For more details, referring to Fig. 38, the configuration is such that a user or a service person can operate the operation panel 10 (see Fig. 1) to finely adjust the amount of movement of the pair of outlet rollers 113 functioning as the misalignment adjustment means in steps. With this configuration, even if an adjustment error occurs in the pair of outlet rollers 113 functioning as the misalignment adjustment means, the user or a service person can correct the adjustment error.

[0198] Also, as shown in Figures 39(A) and (B), the configuration can be such that a user or service person can operate the operation panel 10 to input the size of the sheet S (film) and the inner paper P (interleaf), and fine-tune the size in the width direction (main scanning direction) and the size in the transport direction (sub-scanning direction) in steps.

[0199] With this configuration, the two sheets S1 and S2 constituting the sheet S can be peeled off more satisfactorily, and the inner paper P can be inserted into the sheet S without further misalignment in the width direction.

[0200] Hereinafter, the control flow of the lateral registration adjustment when peeling off the sheet S and inserting the inner paper P will be described with reference to the flowchart of FIG.

[0201] First, the sheet S is fed from the sheet tray 102 (FIG. 40: step S1). Next, the lateral registration (amount of misalignment in the width direction) of the sheet S sandwiched and conveyed by the inlet roller pair 108 is detected by the misalignment detection unit 47 (FIG. 40: step S2).

[0202] Then, the sheet S is conveyed by the exit roller pair 113 until the sheet S passes the position of the winding roller 109, and after the sheet S is further conveyed in the forward direction, the conveyance of the sheet S is stopped. The timing of the conveyance stop at this time is triggered by the timing when the joint portion (the leading edge in the forward direction, the other end side) of the sheet S is detected by the conveyance sensor C3, and is the timing when the sheet S is conveyed by the exit roller pair 113 by a predetermined amount X1 from the detection of the conveyance sensor C3 (FIG. 40: steps S2 and S3).

[0203] At this time, the pair of exit rollers 113 (misalignment adjustment means) holding the sheet S moves in the width direction so that the lateral registration (amount of misalignment in the width direction) of the sheet S detected by the misalignment detection unit 47 becomes zero (FIG. 40: step S24). Note that the timing for adjusting the lateral registration of the sheet S by the pair of exit rollers 113 (misalignment adjustment means) is not limited to this.

[0204] Then, when the conveyance of the sheet S by the pair of outlet rollers 113 is temporarily stopped, the gripping means 110 is moved from the gripping position to the retreat position (FIG. 40: step S4).

[0205] Then, the pair of outlet rollers 113 are rotated in the reverse direction to start conveying the sheet S in the reverse direction (FIG. 40: step S5).

[0206] Then, as shown in FIG. 6A, the timing at which the sheet S is detected by the sensor C4 is used as a trigger to transport the sheet S a predetermined amount X2 by the exit roller pair 113 until the sheet S reaches the winding start position at a predetermined rotation position of the winding roller 109, and then the sheet S is stopped (FIG. 40: steps S6 and S7).

[0207] Then, when the winding roller 109 reaches a predetermined rotational position, the gripping means 110 is moved from the retreated position to the gripping position (FIG. 40: step S8).

[0208] Thereafter, the exit roller pair 113 continues to rotate in the reverse direction and the winding roller 109 starts to wind the sheet S. When the amount of transport by the exit roller pair 113 reaches a predetermined amount X3, the transport by the exit roller pair 113 is stopped and the winding of the sheet S by the winding roller 109 is stopped (Figure 40: step S9).

[0209] Then, the peeling member 116 is inserted into the gap C between the sufficiently spread sheets S (FIG. 40: step S10).

[0210] Then, with the peeling member 116 inserted into the gap C, the pair of outlet rollers 113 start to rotate in the forward direction, and the winding roller 109 starts to rotate in the forward direction (clockwise) (FIG. 40: step S11).

[0211] Then, after the sheet S is conveyed by a predetermined amount X4 by the forward rotation of the exit roller pair 113, the forward rotation of the exit roller pair 113 and the forward rotation of the winding roller 109 are both stopped (FIG. 40: step S12).

[0212] Then, in this state, the gripping means 110 is moved from the gripping position to the retreated position, so that the gripping means 110 is positioned on the transport path (FIG. 40: step S13).

[0213] Thereafter, the pair of outlet rollers 113 are rotated in the forward direction again to start conveying the sheet S in the forward direction (FIG. 40: step S14).

[0214] Then, triggered by the timing when the forward trailing end of the sheet S is detected by the sensor C4, the pair of exit rollers 113 transports the sheet S a predetermined amount X5 and stops it, and then, as shown in FIG. 8(C), the pair of exit rollers 113 is reversed to start transporting the sheet S in the reverse direction (FIG. 40: steps S15 and S16).

[0215] Then, triggered by the timing when the rear end of the sheet S in the reverse direction is detected by the conveyance sensor C5 (see FIG. 1), the sheet S is conveyed by a predetermined amount X6 by the pair of outlet rollers 113 and stopped (FIG. 40: steps S17 and S18).

[0216] Then, conveyance of the inner sheet P from the paper feed tray 103 (see FIG. 1) is started (FIG. 40: step S19).

[0217] Also, the lateral registration (amount of misalignment in the width direction) of the inner sheet P sandwiched and transported by the entrance roller pair 108 is detected by the misalignment detection unit 47 (FIG. 40: step S20). Then, the exit roller pair 113 (misalignment adjustment means) sandwiching the sheet S moves in the width direction so that the lateral registration (amount of misalignment in the width direction) equivalent to the lateral registration (amount of misalignment in the width direction) of the inner sheet P detected by the misalignment detection unit 47 occurs (FIG. 40: step S25).

[0218] Then, as shown in FIG. 9C, the timing at which the forward leading edge of the inner sheet P is detected by the transport sensor C3 is used as a trigger to transport the inner sheet P a predetermined amount X7 by the inlet roller pair 108, and then forward transport of the sheet S by the outlet roller pair 113 is resumed (FIG. 40: step S21).

[0219] As described above, in the sheet processing apparatus 100 of this embodiment, as shown in FIG. 31 (and FIG. 1), a positional deviation detection unit 47 is installed as a positional deviation detection means, and an exit roller pair 113 functions as a positional deviation adjustment means.

[0220] Then, the positional deviation detection unit 47 (positional deviation detection means) and the pair of outlet rollers 113 (positional deviation adjustment means) are used to adjust the lateral registration (amount of positional deviation) of the inner sheet P with respect to the sheet S to a target value.

[0221] 41 to 44 are configuration diagrams showing guide members provided around the winding roller and the pair of exit rollers. As shown in the figures, there are provided a guide plate 210 that guides the sheet S (or the inner paper P) from the winding roller 109 toward the pair of exit rollers 113, a rotating guide plate 212 that guides the peeled sheet S, a right guide plate 214a, and a left guide plate 214b.

[0222] Since the space between the winding roller 109 and the pair of exit rollers 113 is also a space in which slack in the sheet S is formed, the rotating guide plate 212 is configured to be rotatable about a rotation shaft 212a. The rotating guide plate 212 forms a right branch conveying path L1, and guides one of the peeled sheets S (hereinafter referred to as sheet S1) toward the right guide plate 214a.

[0223] A branching member 216 is disposed on the opposite side of the rotating guide plate 212 across the sheet transport path L, and forms a left branched transport path L2, guiding the other side of the peeled sheet S toward the left guide plate 214b.

[0224] 42, in a state in which the peeling member 116 (and the branching member 216) are retracted from the sheet transport path L, the rotating guide plate 212 can move to a position (sheet guiding position) where the sheet S is guided to the exit roller pair 113. This allows the sheet S (or the inner sheet P) transported from the upstream of the exit roller pair 113 to be smoothly guided to the nip portion of the exit roller pair 113.

[0225] On the other hand, as shown in Figure 43, when guiding the peeled-off sheet S to the left and right branch conveying paths L1 and L2, the rotating guide plate 212 moves to a position away from the exit roller pair 113 (peeled-off sheet guiding position), and guides the peeled-off sheet S1 to the right branch conveying path L1.

[0226] 44, the stiffness of the sheet S1 on the right branch conveying path L1 is weaker than that of normal thin paper, and the adhesive side of the sheet S1 is subject to a frictional load from the rotating guide plate 212, and the leading edge of the sheet S1 is likely to get caught on the right guide plate 214a, etc. If the stiffness of the sheet S1 breaks due to the frictional load or getting caught, this causes a peeling failure of the sheet S near the peeling member 116, resulting in problems such as peeling failure, sheet jamming, or failure to insert the inner sheet P.

[0227] To cope with this problem, it is conceivable to avoid bending by providing additional transport rollers and actively transporting the sheet S1 on the right branch transport path L1. However, in a configuration that avoids the rotating guide plate 212, there is no space to provide such transport rollers. Also, in addition to the problem of space, there is also the problem of the drive configuration becoming complicated when providing transport rollers that rotate integrally with the rotating guide plate 212.

[0228] In this embodiment, as shown in FIG. 45, a winding roller 220 which is a winding member rotatable around a rotation shaft 220a is disposed inside the rotation area of ​​the rotating guide plate 212 (near the rotation shaft 212a).

[0229] The winding roller 220 has a chuck 222 that rotates around a chuck rotation shaft 222a, and the chuck 222 forms a gripping portion 221 between the winding roller 220 and the chuck 222. The chuck 222 is biased in a direction to close the gripping portion 221 by a pressure spring 224 provided on the winding roller 220. The chuck 222 is an example of a gripping mechanism.

[0230] A pressure lever 226 is rotatably provided on the rotation shaft 212a of the rotating guide plate 212, and is connected to one end of the rotating guide plate 212 by a connecting spring 228. Therefore, in conjunction with the rotation of the rotating guide plate 212, the pressure lever 226 also rotates.

[0231] 46, the pressure lever 226 comes into contact with the chuck 222 when it rotates, and urges the gripping portion 221 in the direction of opening. Therefore, when the rotating guide plate 212 rotates and moves to the release sheet guiding position, the chuck 222 is pushed by the pressure lever 226 which rotates in conjunction with the rotating guide plate 212, and opens (open state).

[0232] 47, in a state in which the peeling member 116 is retracted from the sheet transport path L, the rotating guide plate 212 moves to a sheet guide position to the exit roller pair 113. At this time, the chuck 222 abuts against (the rotation shaft of) the winding roller 220 and stops, so that the pressure lever 226 is also stopped, but the connecting spring 228 expands and the rotating guide plate 212 moves to the sheet guide position. As a result, the sheet S transported from the upstream of the exit roller pair 113 can be smoothly guided to the nip portion of the exit roller pair 113.

[0233] 48, in a state where the chuck 222 is open, the sheet S1 conveyed to the right branch conveying path L1 is conveyed to the gripping portion 221. Then, as shown in Fig. 49, by moving the rotating guide plate 212 to the retreated position, the pressure lever 226 is also separated from the chuck. Therefore, the chuck 222 is closed and grips the sheet S1 (gripping state).

[0234] Thereafter, as shown in FIG. 50, the take-up roller 220 is driven to rotate clockwise, thereby taking up the sheet S1 conveyed upward from the pair of outlet rollers 113.

[0235] At this time, it is desirable to set the speed of the winding roller conveying linear velocity (Vw) to be equal to or higher (Ve≦Vw) than the conveying linear velocity (Ve) of the pair of exit rollers 113. The sheet S1 can be wound without bending, and the occurrence of skew or jamming can be suppressed.

[0236] With the above configuration, it is possible to prevent the leading edge of the sheet S1 from getting caught on the rotating guide plate 212 or the right guide plate 214a beyond that on the right branch conveying path L1, causing the stiffness of the sheet S1 to break, thereby preventing peeling failure, sheet jamming, or failure to insert the inner paper P.

[0237] 51 to 53 are configuration diagrams showing modified examples of the winding roller. As shown in Fig. 51, the winding roller 220' has an integral notched holding portion 223 instead of a chuck configuration (such as the chuck 222 in Fig. 45). As shown in Figs. 52 and 53, after the sheet S1 transported to the right branch transport path L1 is transported to the holding portion 223, the rotating guide plate 212 is moved to the retreat position, and the winding roller 220 and the exit roller pair 113 are simultaneously driven to wind up the sheet S1.

[0238] The notched holding portion 223 has a lower sheet holding force at the start of winding than the chuck configuration. However, as the sheet S1 makes one revolution around the winding roller 220', the sheet itself presses against the winding roller 220', generating further holding force and providing the same effect as the chuck configuration. In the case of this modified example, the number of parts can be reduced compared to the chuck configuration, which also has the effect of reducing costs.

[0239] Next, a characteristic configuration of the present invention will be described.

[0240] FIG. 54 is a schematic diagram showing the behavior of the pair of outlet rollers and the take-up roller in lateral registration correction when inserting an inner sheet, where (a) is before correction and (b) is after correction.

[0241] In the existing configuration, the take-up roller 220 does not move (is fixed) in the main scanning direction (width direction), so only the exit roller pair 113 moves in accordance with the position of the inner sheet P. At that time, the sheet S is twisted between the exit roller pair 113 and the take-up roller 220, which may cause a problem that the sheet S is skewed with respect to the following inner sheet P.

[0242] FIG. 55 is a schematic diagram showing the behavior of the pair of outlet rollers and the take-up roller in lateral registration correction when inserting an inner sheet in this embodiment, where (a) is before correction and (b) is after correction.

[0243] In this embodiment, the winding roller 220 is also configured to be movable in the main scanning direction, thereby eliminating positional misalignment between the winding roller 220 and the pair of exit rollers 113, and thus suppressing twisting of the sheet S. Specifically, as shown in Fig. 56, a winding unit 230 capable of driving the winding roller 220 in the main scanning direction is provided, and the winding roller 220 is configured to move in synchronization with the pair of exit rollers 113.

[0244] As shown in FIG. 56, the winding unit 230 includes a winding unit holder 232 that rotatably holds the winding roller 220, and a slide shaft 234 and a pinion-rack mechanism that guide the winding unit holder 232 in the main scanning direction.

[0245] The winding unit 230 further includes a winding shift motor 201 that drives the pinion-rack mechanism, and a winding unit home position sensor 203 that detects the position of the winding unit holder 232. The winding roller 220 is rotated by a winding roller drive motor 205.

[0246] On the other hand, the registration unit 231 capable of driving the pair of exit rollers 113 in the main scanning direction includes a registration unit holder 233 that rotatably holds the pair of exit rollers 113, and a slide shaft 234 and a pinion-rack mechanism that guide the registration unit holder 233 in the main scanning direction.

[0247] Furthermore, the registration unit 231 is configured to include a registration shift motor 202 that drives the pinion-rack mechanism, and a registration unit home position sensor 204 that detects the position of the registration unit holder 233. The exit roller pair 113 is rotated by an exit roller pair motor 113a.

[0248] In this way, both the exit roller pair 113 and the take-up roller 220 are movable in the main scanning direction, and their respective positions in the main scanning direction can be detected by the home position sensors 203 and 204. Therefore, it is possible to eliminate positional deviation in the main scanning direction between the take-up roller 220 and the exit roller pair 113, and suppress twisting of the sheet S.

[0249] As a variation of the above configuration, as shown in Figures 57(a) to (c), a configuration may be adopted in which a drive unit (such as a pinion-rack mechanism or a winding shift motor 201) for driving the winding unit holder 232 is not provided, and the winding unit holder 232 is moved (pulled) by the pair of exit rollers 113 via the sheet S.

[0250] In this case, a spring mechanism 236 is provided in the winding unit holder 232 so that the winding roller 220 returns to its original position (home position H) after the sheet S is conveyed.

[0251] (Another variation) As shown in FIG. 58, the winding unit 230' includes a winding unit holder 232' that rotatably holds both the exit roller pair 113 and the winding roller 220, and a slide shaft 234 and a pinion-rack mechanism that guide the winding unit holder 232' in the main scanning direction.

[0252] Further, the winding unit 230' is configured to include a winding shift motor 201 that drives the pinion-rack mechanism, a winding unit home position sensor 203 that detects the position of the winding unit holder 232', and the like.

[0253] In this manner, the winding unit 230' may be configured so that the pair of outlet rollers 113 and the winding roller 220 move integrally in the main scanning direction (width direction). This configuration reduces the number of parts, and also has the effect of reducing costs.

[0254] Subsequently, advantageous configurations of the invention will be explained.

[0255] Fig. 59(a) is a configuration diagram showing the winding roller and its drive unit (when winding), and (b) is a side configuration diagram seen from the direction of arrow A. Also, Fig. 60(a) is a configuration diagram showing the winding roller and its drive unit (when inserting an inner paper), and (b) is a side configuration diagram seen from the direction of arrow A.

[0256] The rotating shaft of the winding roller 220 is connected to the winding roller drive motor 205 via a winding roller drive torque limiter gear 240 and a gear 241, which serve as a connecting means. The winding roller drive torque limiter gear 240 is configured not to transmit drive force from the winding roller drive motor 205 that exceeds a predetermined torque.

[0257] A winding roller HP filler 242 , which is a filler member, is provided on the rotation shaft of the winding roller 220 , and the rotation state of the filler is detected by a winding roller HP sensor 244 .

[0258] The winding roller 220 grips one of the peeled sheets S conveyed from the pair of exit rollers 113 with a chuck 222, and then rotates to wind up the sheet S1. Since the winding roller HP filler 242 continues to rotate during winding by the winding roller 220, the output signal of the winding roller HP sensor 244 repeats ON / OFF at a constant phase.

[0259] Next, after a certain distance has been wound up, the sheet transport (winding up) is temporarily stopped, and a registration shift operation is performed to detect the sheet end. At this time, by moving the winding unit 230 (winding roller 220) in synchronization with the movement of the registration unit 231 (exit roller pair 113) in the width direction, it is possible to prevent the sheet S gripped by both the exit roller pair 113 and the winding roller 220 from being twisted.

[0260] Next, as shown in FIG. 60, when the joint side of the sheet S is at a certain distance from the pair of exit rollers 113, the drive of the pair of exit rollers 113 is stopped and the pair of exit rollers 113 is energized and fixed, thereby fixing the sheet position and setting it in a posture for inserting the inner sheet P.

[0261] Even if the exit roller pair 113 is fixed, the winding roller drive motor 205 of the winding roller 220 continues to rotate, so that the sheet S1 is pulled between the exit roller pair 113 and the winding roller 220. As a result, when the torque exceeds a predetermined torque of the winding roller drive torque limiter gear 240, the torque is not transmitted, and the rotation of the winding roller 220 and the winding roller HP filler 242 stops.

[0262] When the rotation of the winding roller HP filler 242 stops, the output signal of the winding roller HP sensor 244 becomes a constant value (ON or OFF, no change). By detecting that the signal no longer changes, the completion of winding the sheet S1 can be detected.

[0263] Next, at the timing of inserting the inner sheet P, the registration unit 231 is adjusted in the main scanning direction to align the center position of the inner sheet with the center position of the sheet. At this time, by moving the winding unit 230 in synchronization with the registration unit 231, it is possible to prevent the sheet S1 held by the exit roller pair 113 and the winding roller 220 from being twisted.

[0264] 61 is a flowchart related to automatic adjustment for aligning the positions of the sheet S and the inner paper P. One embodiment of the position adjustment method will be described using this flowchart. The position adjustment is performed after the peeling of the sheet S is completed and the sheet S is held by the position misalignment adjustment means (the pair of exit rollers 113).

[0265] First, in step S101, the moving mechanism 46 (FIG. 31(a)) is driven to read the edge of the sheet S held by the pair of exit rollers 113 by the position deviation detection unit 47 (FIG. 31(b)). From the sheet width and the read edge position, the amount by which the center position of the sheet S is deviated from the center of conveyance is calculated.

[0266] Next, in step S102, the pair of inlet rollers 108 are rotated to transport the inside sheet P. Then, in step S103, the position deviation detection unit 47 reads the edge of the inside sheet P. From the width of the inside sheet and the read edge position, the amount of deviation of the center position of the inside sheet P from the center of transport is calculated.

[0267] In step S104, the amount of deviation between the center positions of the sheet S and the inner sheet P is compared based on the center of conveyance. If the deviation amounts are equal (YES), the alignment is completed (no adjustment required). On the other hand, if there is a difference in the deviation amounts (NO), the difference is calculated.

[0268] Next, in step S105, the movement mechanism 46 is driven by an amount equal to the difference in the calculated amount of deviation, so as to align the center position of the sheet S with the center position of the inner sheet P. After that, the process returns to step S104.

[0269] In this manner, the center position of the peeled sheet S and the center position of the inner sheet P can be aligned.

[0270] The present invention has been described in detail above using the embodiment. This embodiment is merely an example, and various modifications can be made without departing from the scope of the present invention. For example, the embodiment and the modifications can be combined with each other.

[0271] Furthermore, the effects described in the embodiments of the present invention are merely a list of the most preferable effects resulting from the present invention, and the effects of the present invention are not limited to those described in the embodiments of the present invention.

[0272] For example, aspects of the present invention are as follows. (Aspect 1) A sheet processing apparatus that peels off two sheets of a two-ply sheet having two sheets overlapped and partially joined together, and inserts at least one sheet-like medium between the two sheets, a sheet peeling unit that performs a peeling process on the two overlapping sheets and performs an insertion process of inserting the sheet-like medium between the two sheets in a peeled state; a positional deviation detection means capable of detecting a positional deviation in a width direction perpendicular to a predetermined conveying direction of the two-ply sheet conveyed toward the sheet peeling section, and capable of detecting a positional deviation in the width direction of the sheet-like medium conveyed toward the sheet peeling section; a positional deviation adjustment means for adjusting a positional deviation of the two-ply sheets in the width direction before the peeling process based on the amount of positional deviation of the two-ply sheets detected by the positional deviation detection means; a winding member that winds up one of the two-ply sheets after the peeling process; a winding unit capable of moving the winding member in the width direction, the positional deviation adjustment means is capable of adjusting a positional deviation of the two-ply sheet in the width direction based on an amount of positional deviation of the sheet-like medium, The sheet processing apparatus is characterized in that the winding member moves in synchronization with the positional deviation adjustment means. (Aspect 2) The sheet processing apparatus of aspect 1, wherein the positional misalignment adjustment means includes a conveying means for clamping and conveying the two-ply sheet and the sheet-like medium, and a moving mechanism for moving the conveying means in the width direction. (Aspect 3) The sheet processing device of any one of aspects 1 to 2, wherein the winding unit includes a winding unit holder that rotatably holds the winding member, and a drive unit that moves the winding unit holder in the width direction. (Aspect 4) The sheet processing device of any one of aspects 1 to 3, wherein the winding unit includes a winding unit holder that rotatably holds the winding member, and a spring mechanism that returns the winding unit holder to a predetermined position. (Aspect 5) The sheet processing apparatus of aspect 2, wherein the winding unit is configured to move the winding member and the transport means for clamping and transporting the two-ply sheet and the sheet-like medium together in the width direction. (Aspect 6) A sheet processing apparatus as described in any one of aspects 1 to 5, characterized in that the winding member has a gripping mechanism that is switchable between an open state in which it opens to allow an end of one of the two-ply sheets to be inserted, and a gripping state in which it grips the end of the inserted sheet. (Aspect 7) The sheet processing apparatus according to any one of aspects 1 to 6, wherein the positional deviation adjustment means automatically adjusts the widthwise center position of the sheet medium so that the widthwise center position of the two-ply sheet coincides with the widthwise center position of the two-ply sheet. (Aspect 8) A sheet processing apparatus as described in any one of aspects 1 to 7, characterized in that the position misalignment adjustment means is configured to be able to change the adjustment amount of the widthwise position to any value within a range in which the sheet-like medium does not protrude in the width direction relative to the two-ply sheet. (Aspect 9) 9. The sheet processing apparatus according to claim 8, wherein an adjustment amount of the position of the sheet medium in the width direction by the positional deviation adjustment unit can be set by a user. (Aspect 10) The sheet processing device described in any one of aspects 1 to 9, characterized in that the positional misalignment detection means includes a first positional misalignment detection unit capable of detecting the amount of positional misalignment in the width direction of the two stacked sheets, and a second positional misalignment detection unit capable of detecting the amount of positional misalignment in the width direction of the sheet-like medium. (Aspect 11) 11. The sheet processing apparatus according to aspect 10, wherein the first misalignment detection unit is an optical sensor capable of detecting at least one edge of the sheet medium in the main scanning direction. (Aspect 12) 12. The sheet processing apparatus according to aspect 10 or 11, wherein the first positional deviation detection unit is configured to move in a main scanning direction and is capable of detecting both ends of the sheet medium in the main scanning direction. (Aspect 13) 11. The sheet processing apparatus according to aspect 10, wherein the second positional deviation detection unit is an optical sensor capable of detecting at least one edge of the two-ply sheet in the main scanning direction. (Aspect 14) 14. The sheet processing apparatus according to claim 1, wherein the positional deviation adjustment unit moves the widthwise center position of the two-ply sheet so as to coincide with a center reference of the sheet processing apparatus. (Aspect 15) 15. The sheet processing apparatus of any one of aspects 1 to 14, further comprising a guide member that guides one of the peeled two-ply sheets to the winding member. (Aspect 16) The sheet processing apparatus of aspect 15, wherein the guide member is movable and biases the gripping mechanism of the winding member to switch between an open state and a gripping state. (Aspect 17) The sheet processing device described in aspect 16 is characterized in that the guide member is configured to be rotatable around a rotation axis, one end of which is connected to a pressure lever that rotates in conjunction with the guide member, and the pressure lever is capable of biasing the gripping mechanism of the winding member when rotated. (Aspect 18) 18. The sheet processing apparatus according to any one of aspects 15 to 17, wherein the winding member is disposed inside a rotation area of ​​the guide member. (Aspect 19) The winding member has a notched holding portion, 3. The sheet processing apparatus according to aspect 1 or 2, wherein the holding portion is capable of inserting an end of one of the two stacked sheets. (Aspect 20) 20. The sheet processing apparatus of claim 1, wherein the linear transport speed of the winding member is set to be equal to or greater than the linear transport speed of a transport means for transporting the two-ply sheet. (Aspect 21) a filler member provided on a rotation shaft of the winding member and rotating together with the rotation shaft; A detection means for detecting the rotation of the filler member; a coupling means for coupling the winding member to a drive unit that drives the winding member, the coupling means not transmitting a driving force of a predetermined torque or more; A sheet processing apparatus as described in any one of aspects 1 to 20, characterized in that after the winding member starts winding the sheet, the winding member stops winding when the detection means no longer detects the rotation of the filler member. (Aspect 22) A sheet processing apparatus according to any one of aspects 1 to 21, a heat and pressure member capable of heating and pressurizing the two-ply sheet downstream of the sheet processing device; A lamination processing device comprising: (Aspect 23) an image forming unit that forms an image; A sheet processing apparatus according to any one of aspects 1 to 21 or a lamination processing apparatus according to aspect 22; An image forming apparatus comprising: (Aspect 24) An image forming apparatus; A sheet processing apparatus according to any one of aspects 1 to 21 or a lamination processing apparatus according to aspect 22; An image forming system comprising: (Aspect 25) An image forming system, characterized in that the sheet processing device according to any one of aspects 1 to 21 or the lamination processing device according to aspect 22 is configured to be detachably attached to an image forming apparatus. [Explanation of symbols]

[0273] 1, 19 Sheet peeling section 10 Operation Panel 46 Moving mechanism 47 First position deviation detection unit 48 Second position deviation detection unit 50 Heat fixing unit 100 Sheet processing device 102 Sheet Tray 103 Paper feed tray 104 Output tray 105, 106 Pickup roller 107 Transport roller pair 108 Inlet roller pair 109 Winding roller 110 Gripping means 111 Roller member 113 Exit roller pair 116, 116a, 116b Peeling member 117 Transport roller pair 118 Branching member 120 Heat fixing roller pair 121 Discharge roller pair 122 Second paper ejection device 123 Output tray 127 Controller (control unit) 150 Intermediate transfer device 152 Intermediate transfer belt 154c, 154k, 154m, 154y imaging device 156 Exposure Equipment 158 Paper feeder 160 First paper feed cassette 162 Second paper feed cassette 164 Paper transport path 166 1st feed roller 168 2nd feed roller 170 Transport roller pair 174 Secondary transfer device 176 Fixing device 178 First paper ejection device 180c, 180k, 180m, 180y Primary transfer device 188 Image reader 200, 200a, 200b Lamination processing device 201 Winding shift motor 202 Resist shift motor 203 Winding unit home position sensor 204 Registration unit home position sensor 205 Winding roller drive motor 210 Guide plate 212 Rotating guide plate 212a Rotating shaft 214a Right guide plate 214b Left guide plate 216 Branching member 220, 220' Winding roller 220a Rotating shaft 221 Gripping part 222 Chuck 222a Chuck rotation axis 223 Holding part 224 Pressure Spring 226 Pressure Lever 228 Connecting Spring 230, 230' Winding unit 231 Resist Unit 232, 232' Winding unit holder 233 Resist unit holder 234 Slide shaft 236 Spring Mechanism 240 Winding roller drive torque limiter gear 241 Gear 242 Take-up roller HP filler 244 Winding roller HP sensor 250 Aftertreatment Device 300, 400, 500 Image forming device 3001, 4001, 5001, 5002 Image forming system C1, C2, C3, C5 Transport Sensor C4 Abnormal condition detection sensor C6, C7 size sensor H Home Position L Sheet transport path L1 Right branch transport route L2 Left branch transport route S sheet (2-ply sheet) P Inner paper (sheet media) g space r joint M Width size α, α', β Horizontal registration (position misalignment) [Prior art documents] [Patent documents]

[0274] [Patent Document 1] JP 2020-179584 A [Patent Document 2] Patent No. 4750754 specification

Claims

1. A sheet processing apparatus that peels off two sheets of a two-ply sheet having two sheets overlapped and partially joined together, and inserts at least one sheet-like medium between the two sheets, a sheet peeling unit that performs a peeling process on the two overlapping sheets and performs an insertion process of inserting the sheet-like medium between the two sheets in a peeled state; a positional deviation detection means capable of detecting a positional deviation in a width direction perpendicular to a predetermined conveying direction of the two-ply sheet conveyed toward the sheet peeling section, and capable of detecting a positional deviation in the width direction of the sheet-like medium conveyed toward the sheet peeling section; a positional deviation adjustment means for adjusting a positional deviation of the two-ply sheets in the width direction before the peeling process based on an amount of positional deviation of the two-ply sheets detected by the positional deviation detection means; a winding member that winds up one of the two-ply sheets after the peeling process; a winding unit capable of moving the winding member in the width direction, the positional deviation adjustment means is capable of adjusting a positional deviation of the two-ply sheets in the width direction based on an amount of positional deviation of the sheet-like medium, The sheet processing apparatus is characterized in that the winding member moves in synchronization with the positional deviation adjustment means.

2. 2 . The sheet processing apparatus according to claim 1 , wherein the positional deviation adjustment means comprises a transport means for clamping and transporting the two-ply sheet and the sheet-like medium, and a movement mechanism for moving the transport means in the width direction.

3. The sheet processing apparatus according to claim 1 , wherein the winding unit includes a winding unit holder that rotatably holds the winding member, and a drive section that moves the winding unit holder in the width direction.

4. 2 . The sheet processing apparatus according to claim 1 , wherein the winding unit includes a winding unit holder that rotatably holds the winding member, and a spring mechanism that returns the winding unit holder to a predetermined position.

5. 2 . The sheet processing apparatus according to claim 1 , wherein the winding unit is configured to move the winding member and a transport means for holding and transporting the two-ply sheet and the sheet-like medium together in the width direction.

6. The sheet processing apparatus according to claim 1, characterized in that the winding member has a gripping mechanism, and the gripping mechanism is switchable between an open state in which it opens to allow an end of one of the two stacked sheets to be inserted, and a gripping state in which it grips the end of the inserted sheet.

7. 2. The sheet processing apparatus according to claim 1, wherein the positional deviation adjustment means automatically adjusts the widthwise center position of the sheet medium so that the widthwise center position of the two-ply sheets coincides with the widthwise center position of the sheet medium.

8. 2. The sheet processing apparatus according to claim 1, wherein the positional deviation adjustment means is configured to be able to change the adjustment amount of the widthwise position to any value within a range in which the sheet medium does not protrude in the width direction relative to the two-ply sheet.

9. 9. The sheet processing apparatus according to claim 8, wherein an adjustment amount of the position of the sheet medium in the width direction by the positional deviation adjustment unit can be set by a user.

10. 2. The sheet processing apparatus according to claim 1, characterized in that the positional misalignment detection means comprises a first positional misalignment detection unit capable of detecting the amount of positional misalignment in the width direction of the two-ply sheet, and a second positional misalignment detection unit capable of detecting the amount of positional misalignment in the width direction of the sheet-like medium.

11. The sheet processing apparatus according to claim 10 , wherein the first positional deviation detection unit is an optical sensor capable of detecting at least one edge of the sheet medium in the main scanning direction.

12. 11. The sheet processing apparatus according to claim 10, wherein the first positional deviation detection unit is configured to move in a main scanning direction and is capable of detecting both ends of the sheet medium in the main scanning direction.

13. The sheet processing apparatus according to claim 10 , wherein the second positional deviation detection unit is an optical sensor capable of detecting at least one end of the two-ply sheet in the main scanning direction.

14. 2. The sheet processing apparatus according to claim 1, wherein the positional deviation adjustment means moves the central position of the two-ply sheet in the width direction so as to coincide with a center reference of the sheet processing apparatus.

15. The sheet processing apparatus according to claim 1 , further comprising a guide member for guiding one of the peeled two-ply sheets to the winding member.

16. 16. The sheet processing apparatus according to claim 15, wherein the guide member is configured to be movable, and biases the gripping mechanism of the winding member to switch between an open state and a gripping state.

17. 17. The sheet processing apparatus according to claim 16, wherein the guide member is configured to be rotatable around a rotation axis, one end of the guide member is connected to a pressure lever that rotates in conjunction with the guide member, and the pressure lever is capable of biasing the gripping mechanism of the winding member when it rotates.

18. The sheet processing apparatus according to claim 15, wherein the winding member is disposed inside a rotation area of ​​the guide member.

19. The winding member has a notched holding portion, The sheet processing apparatus according to claim 1 , wherein the holding portion is capable of receiving an end of one of the two sheets.

20. 2. The sheet processing apparatus according to claim 1, wherein a linear transport speed of the winding member is set to be equal to or higher than a linear transport speed of a transport means for transporting the two-ply sheet.

21. a filler member provided on a rotation shaft of the winding member and rotating together with the rotation shaft; A detection means for detecting the rotation of the filler member; a coupling means for coupling the winding member and a drive unit that drives the winding member, the coupling means not transmitting a driving force of a predetermined torque or more; 2. The sheet processing apparatus according to claim 1, wherein the winding member stops winding the sheet when the detection means no longer detects the rotation of the filler member after the winding member starts winding the sheet.

22. The sheet processing apparatus according to claim 1 ; a heat and pressure member capable of heating and pressurizing the two-ply sheet downstream of the sheet processing device; A lamination processing device comprising:

23. an image forming unit that forms an image; 23. An image forming apparatus comprising: a sheet processing apparatus according to claim 1; or a lamination processing apparatus according to claim 22.

24. An image forming apparatus; A sheet processing apparatus according to any one of claims 1 to 21 or a lamination processing apparatus according to claim 22; An image forming system comprising:

25. 23. An image forming system, comprising: the sheet processing apparatus according to claim 1; or the lamination processing apparatus according to claim 22; configured to be detachable from an image forming apparatus.

Images