Control device

Abstract

To provide a technique for starting preparing operation for sheet feeding work in a proper timing according to various conditions related to the preparing operation for feeding work.SOLUTION: A control device 26 for a sheet collation system which feeds sheets from a plurality of feed parts and puts them one over another to form a sheet set comprises a reception unit 66 which accepts predetermined switch operation by a user and a control unit 68 which controls the feeding of sheets from the feed parts. The feed parts are grouped into a plurality of feed groups, and the control unit starts preparing operation for second feed work to feed sheets from feed parts belonging to a second feed group different from a first feed group in response to the switch operation as a trigger when the reception unit 66 accepts the predetermined switch operation by the user during first feed work for feeding sheets from feed parts belonging to the first feed group among the plurality of feed groups.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a control device.

Background Art

[0002] Patent Document 1 discloses a collating device. The collating device of Patent Document 1 divides a paper feed table into a plurality of groups, and starts paper conveyance from a first group in which papers are stacked on all the paper feed tables. When there is no paper left in any of the paper feed tables in the first group, the collating device of Patent Document 1 starts paper conveyance from another second group.

[0003] On the other hand, in an air suction type collating device, it takes time for the preparation work until the sheet can be fed after starting up. The air suction type collating device described in Patent Document 2 starts the preparation work for paper feeding from the second group while continuing the paper feeding from the first group when the paper has been fed a predetermined number of times since the start of paper feeding, or when the near end is detected. Since the collating device of Patent Document 2 can start the preparation work for paper feeding in the other block during the collation in one group, it is possible to suppress the loss of time for the preparation work at the time of transition.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the time required for the preparation operation of the feeding operation varies depending on conditions. Therefore, in the prior art, there are cases where the preparation operation of the sheet feeding operation cannot be started at an appropriate timing.

[0006] In view of the above, an exemplary object of one aspect of the present invention is to provide a technique that enables the preparation operation of the sheet feeding operation to be started at an appropriate timing according to various conditions related to the preparation operation of the feeding operation.

Means for Solving the Problems

[0007] In order to solve the above problems, a control device according to an aspect of the present invention is a control device for a collating system that feeds sheets from a plurality of feeding units and stacks them to form a sheet set, and includes a reception unit that receives a predetermined switch operation by a user, and a control unit that controls the feeding of the sheets from the feeding units. The plurality of feeding units are grouped into a plurality of feeding groups, and when the reception unit receives a predetermined switch operation by the user during a first feeding operation of feeding a sheet from the feeding unit belonging to a first feeding group among the plurality of feeding groups, the control unit starts a preparation operation for a second feeding operation of feeding a sheet from the feeding unit belonging to a second feeding group different from the first feeding group, using the switch operation as a trigger.

[0008] In addition, any combination of the above components, or those obtained by mutually replacing the components and expressions of the present invention among methods, devices, systems, etc. are also effective as aspects of the present invention.

Effects of the Invention

[0009] According to the present invention, it is possible to provide a technique that enables the preparation operation of the sheet feeding operation to be started at an appropriate timing according to various conditions related to the preparation operation of the feeding operation.

Brief Description of the Drawings

[0010]

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Embodiments for Carrying Out the Invention

[0011] Hereinafter, the present invention will be described with reference to the drawings based on preferred embodiments. The embodiments are illustrative rather than limiting the invention, and not all features and combinations thereof described in the embodiments are necessarily essential to the invention. The same or equivalent components, members, and processes shown in each drawing are denoted by the same reference numerals, and repeated explanations will be omitted as appropriate.

[0012] First Embodiment FIG. 1 is a perspective view of a booklet creation system 1 according to an embodiment. The booklet creation system 1 creates a booklet by performing post-processing such as collating, folding, binding, and trimming on sheets such as papers printed with characters and images. The booklet creation system 1 of the first embodiment is an example of a collating system.

[0013] The booklet creation system 1 includes a first supply line 10_1 and a second supply line 10_2 (hereinafter referred to as "supply line 10" when not particularly distinguished), a folding device 16, a binding device 18, a trimming device 20, a top-and-bottom trimming device 22, a belt stacker 24, and an integrated control device 26.

[0014] The first and second supply lines 10_1 and 10_2 each supply a sheet set element to the folding device 16. The sheet set element includes one or a plurality of stacked sheets. That is, the sheet set element includes at least one sheet. The first and second supply lines 10_1 and 10_2 are provided in parallel, but are not limited thereto. Note that the booklet creation system 1 may include three or more supply lines 10.

[0015] The first supply line 10_1 includes collating devices 12A_1 and 12B_1. The second supply line 10_2 includes collating devices 12A_2 and 12B_2. Hereinafter, when not particularly distinguishing the collating devices 12A_1, 12B_1, 12A_2, and 12B_2, they are referred to as "collating device 12". Note that the number of collating devices 12 provided in the supply line 10 is not particularly limited. The number of collating devices 12 may be different for each supply line 10.

[0016] The stapling device 12 includes a plurality of feeding units 38 (see FIG. 2 described later). A stack of sheets is loaded on each of the plurality of feeding units 38. The stapling device 12 creates a sheet bundle by overlapping sheets while feeding the sheets from each of the plurality of feeding units 38. In this case, the sheet set element is composed of a plurality of sheets. Also, the stapling device 12 may send out the sheet fed from the feeding unit 38 as a sheet set element without overlapping it, i.e., as a single sheet. In this case, the sheet set element is composed of a single sheet. The stapling device 12A and the stapling device 12B are arranged in series, and it is possible to overlap the sheet bundle created by the stapling device 12A arranged on the upstream side with the sheet bundle created by the stapling device 12B arranged on the downstream side. It is also possible to make them into separate sheet bundles without overlapping them.

[0017] The sheet bundle stapled by the stapling device 12, i.e., the sheet set element, is conveyed in the x direction (first direction) by a conveying mechanism (not shown) and unloaded to the folding device 16. The x direction is, for example, the horizontal direction.

[0018] The folding device 16 changes the conveying direction of the sheet set element carried in from the first and second supply lines 10_1 and 10_2 from the x direction to the y direction (second direction) by a direction changing mechanism (not shown) provided for each supply line 10. The y direction is, for example, the horizontal direction and is, for example, a direction orthogonal to the x direction in a plan view.

[0019] The folding device 16 makes creases on the sheet set element whose direction has been changed to the y direction, and folds the sheet set element along the creases into a mountain-fold shape (i.e., the cross-sectional shape is an inverted V shape). The folding device 16 conveys the sheet set element folded into a mountain-fold shape (hereinafter referred to as "mountain-folded sheet set element") in the y direction and unloads it to the binding device 18.

[0020] The binding device 18 includes a sheet set forming mechanism 30 and a binding mechanism 32. The sheet set forming mechanism 30 accumulates the mountain-folded sheet set elements carried in from the folding device 16 until they become a set of sheet bundles (hereinafter referred to as "sheet set") that constitutes one booklet. That is, the sheet set forming mechanism 30 forms a sheet set in which a plurality of sheet set elements overlap. The binding mechanism 32 binds the accumulated set of sheet sets at the creases to create a booklet. The binding mechanism 32 transports the created booklet out to the trimming device 20.

[0021] The trimming device 20 trims the spine of the booklet carried in from the binding device 18 and transports it out to the top and bottom trimming device 22. The top and bottom trimming device 22 trims the top and bottom of the booklet carried in from the trimming device 20 and transports it out to the belt stacker 24. The belt stacker 24 sequentially accumulates the incoming booklets.

[0022] The integrated control device 26 integrally controls the booklet making system 1. The integrated control device 26 is configured by, for example, a PC.

[0023] FIG. 2 is a diagram showing the configuration of the supply line 10. The supply line 10 further includes a first relay transport device 34 and a second relay transport device 36.

[0024] Each of the two collating devices 12 includes a plurality of feeding units 38, a vertical transport mechanism 44, and a horizontal transport mechanism 46. The plurality of feeding units 38 are arranged in parallel in the vertical direction. Note that the parallel arrangement direction of the feeding units 38 is not limited to the vertical direction. Hereinafter, the case where each collating device 12 includes 10 feeding units 38 will be described, but the number of feeding units 38 is not particularly limited.

[0025] The plurality of feeding units 38 include a loading table 40 and a feeding mechanism 42. A plurality of sheets are loaded on the loading table 40. The feeding mechanism 42 performs feeding to send out the sheets one by one from the corresponding loading table 40. In the illustrated example, the feeding mechanism 42 is an air suction type feeding mechanism, but it may be a friction type feeding mechanism or other feeding mechanisms. The sheets sent out by the feeding mechanism 42 can be stacked while being conveyed vertically downward by the vertical conveying mechanism 44.

[0026] The horizontal conveying mechanism 46 conveys the sheet bundle conveyed from the upstream butting device 12 downstream via the first relay conveying device 34 described later. The downstream end of the horizontal conveying mechanism 46 merges with the downstream end of the vertical conveying mechanism 44, and at this merging point, the sheet or sheet bundle conveyed from the upstream side and the sheet or sheet bundle created by the butting device 12 can be stacked.

[0027] A first relay conveying device 34 is arranged between the butting device 12A and the butting device 12B. The first relay conveying device 34 has a conveying mechanism 47. The conveying mechanism 47 conveys the sheet or sheet bundle created by the upstream butting device 12 to the downstream butting device 12. In the illustrated example, a belt conveying mechanism is adopted for the conveying mechanism 47, but for example, a roller conveying mechanism or the like may be adopted.

[0028] A second relay conveying device 36 is provided on the downstream side of the butting device 12A. The second relay conveying device 36 has a conveying mechanism 48. The conveying mechanism 48 conveys the sheet or sheet bundle (i.e., the sheet set element) carried out from the butting device 12A and carries it out to the folding device 16. In the illustrated example, a belt conveying mechanism is adopted for the conveying mechanism 48, but for example, a roller conveying mechanism or the like may be adopted.

[0029] FIG. 3 is a side view of the folding device 16 as viewed in the y direction. FIG. 3 is a view taken along arrow A in FIG. 1. The folding device 16 includes a first folding mechanism 50_1 and a second folding mechanism 50_2 (hereinafter, referred to as "folding mechanism 50" when not particularly distinguished), a conveying mechanism 52, and a sensor 54.

[0030] The first and second folding mechanisms 50_1 and 50_2 are provided above the conveying mechanism 52. The second folding mechanism 50_2 is provided on the downstream side of the first folding mechanism 50_1. The first folding mechanism 50_1 is a folding mechanism corresponding to the first supply line 10_1, and applies a crease to the sheet set element supplied from the first supply line 10_1. The second folding mechanism 50_2 is a folding mechanism corresponding to the second supply line 10_2, and applies a crease to the sheet set element supplied from the second supply line 10_2.

[0031] The folding mechanism 50 folds the sheet set element in a mountain fold shape while moving the sheet set element downstream and downward.

[0032] The conveying mechanism 52 includes an upstream pulley 55, a downstream pulley 56 provided downstream of the upstream pulley 55, an endless conveying belt 58 wound around the upstream pulley 55 and the downstream pulley 56, and a pair of saddle members 60.

[0033] When the downstream pulley 56 rotates driven by a motor (not shown), the conveying belt 58 rotates. For example, the conveying belt 58 may be a toothed belt (cogged belt) as shown in the figure, and the pulleys 55 and 56 may be toothed pulleys. The conveying belt 58 preferably continues to run at a constant speed while continuously creating a predetermined number of booklets. The rotational speed of the downstream pulley 56 may be variable. In other words, the moving speed of the conveying belt 58 may be variable.

[0034] The conveying belt 58 is formed of a flexible material such as an elastomer. The conveying belt 58 has an outer peripheral surface with an inverted V-shaped cross section. The conveying belt 58 is not particularly limited, but in the present embodiment, it has a substantially isosceles triangle cross-sectional shape with the inner peripheral surface as the base and the outer peripheral surface as the equal sides.

[0035] On the outer periphery of the conveyor belt 58, pushers 62 protruding outward are provided at equal intervals, for example, in the circumferential direction (extending direction). A plurality of conveying sections 64 arranged continuously along the y direction are defined by the plurality of pushers 62. Specifically, a portion of the outer peripheral surface of the conveyor belt 58 facing upward between two adjacent pushers 62 in the y direction constitutes one conveying section 64. The sheet set elements are carried into these conveying sections 64 from the folding mechanism 50.

[0036] The saddle member 60 is a member that opens the mountain-folded sheet set element in an inverted V shape.

[0037] The sheet set element fed into the conveying section 64 is pushed at the rear end by the pusher 62 and conveyed downstream in the y direction while maintaining the mountain-folded state by the outer peripheral surface of the conveyor belt 58 and the saddle member 60.

[0038] Note that the conveying mechanism 52 is not limited to the above-described configuration as long as it has a plurality of conveying sections 64 provided along the y direction and moves each mountain-folded sheet set element fed from the folding mechanism 50 into each of the plurality of conveying sections 64 in the y direction while maintaining its mountain-folded state.

[0039] The sheet set element conveyed by the conveying mechanism 52 to the downstream end of the folding device 16 is carried out to the binding device 18 by an auxiliary conveying mechanism (not shown). The auxiliary conveying mechanism separates the sheet set element from the conveyor belt 58 that turns downward along the downstream pulley 56 and then conveys it horizontally. The conveying speed of the auxiliary conveying mechanism is set higher than the conveying speed of the conveyor belt 58. The auxiliary conveying mechanism separates the sheet set element immediately before the conveyor belt 58 turns downward. Thereby, it is possible to prevent interference between the rear end of the sheet set element and the pusher 62 that turns downward together with the conveyor belt 58.

[0040] The sensor 54 is provided to detect the passage of the pusher 62. Therefore, an appropriate sensor capable of detecting the passage of the pusher 62 may be adopted for the sensor 54.

[0041] Each butting device 12 includes an operation panel unit 90. FIG. 4 shows an example of the operation panel unit 90. The operation panel unit 90 is provided for operating the butting device 12 on which the operation panel unit 90 is provided. The operation panel unit 90 includes a stop switch 91, a start switch 92, a raise switch 93, a lower switch 94, a forced discharge switch 95, a preset switch 96, and a touch panel unit 97. The stop switch 91 is a switch for stopping the operation of the butting device 12. The start switch 92 is a switch for starting the operation of the butting device 12. During the operation of the butting device 12, an operation lamp 98 lights up. The raise switch 93 is a switch for controlling the raising of the loading table 40 of the feeding unit 38. The lower switch 94 is a switch for controlling the lowering of the loading table 40 of the feeding unit 38. The forced discharge switch 95 is a switch for driving the motor of the feeding mechanism 42 to discharge the sheet stopped by the feeding mechanism 42 when it is operated during the stop of the feeding operation. The forced discharge switch 95 of the present embodiment functions as a switch for starting the preparation operation of the feeding operation when it is operated during the feeding operation, as will be described later. The preset switch 96 is a switch for setting, for example, a threshold value for detecting double feeding in an optical double feeding detection sensor (not shown). By operating the preset switch 96, only one sheet is butted at the first start of the operation, and the amount of light received by a double feeding detection sensor (not shown) when one sheet passes through the feeding mechanism 42 on the loading table 40 to be used is stored in a storage unit (not shown) of the butting device 12. Based on this amount of light received, the threshold value for detecting double feeding in the double feeding detection sensor is set and stored in the butting device 12. The touch panel unit 97 displays, for example, a setting screen for various settings of the butting device 12.

[0042] Each collating device 12 includes a sheet lamp 99A, a double-feed lamp 99B, an air-feed lamp 99C, a stack jam lamp 99D, a feed mechanism jam lamp 99E, and a device error lamp 99F. The sheet lamp 99A lights up during sheet feeding and blinks when the sheet runs out. The double-feed lamp 99B lights up when double feeding of the sheet is detected by a double-feed detection sensor (not shown). The air-feed lamp 99C lights up when the sheet is fed air. The stack jam lamp 99D lights up when a sheet jam occurs on the stacking table 40 during sheet feeding. The feed mechanism jam lamp 99E lights up when a sheet jam occurs in the feed mechanism 42 during sheet feeding. When the sheet runs out, when the sheet is double-fed, when the sheet is fed air, when a sheet jam occurs on the stacking table 40, or when a sheet jam occurs in the feed mechanism 42 during sheet feeding, the corresponding device error lamp 99F for the collating device 12 lights up.

[0043] FIG. 5 is a block diagram showing the control system of the booklet creation system 1. The integrated control device 26 includes an acquisition unit 66 and a main control unit 68. Each block shown here can be realized hardware-wise by elements such as a computer's CPU (central processing unit) and mechanical devices, and software-wise by a computer program or the like. Here, however, functional blocks realized by their cooperation are depicted. Therefore, it is understood by those skilled in the art referred to in this specification that these functional blocks can be realized in various forms by combinations of hardware and software.

[0044] The acquisition unit 66 acquires input from the user via a predetermined input device such as the operation panel unit 90. For example, the acquisition unit 66 acquires a start instruction from the user via the start switch 92 of the operation panel unit 90. For example, the acquisition unit 66 acquires various job information about a job of creating a booklet from the user via a predetermined input device. The job information includes information regarding the number of booklets to be created, the assignment of a feeding group (to be described later) to which the plurality of feeding units 38 belong, the working order of the feeding group, the feeding unit 38 to be used, and the like. Also, for example, the acquisition unit 66 receives a predetermined switch operation by the user. Also, for example, the acquisition unit 66 receives a second switch operation by the user. The acquisition unit 66 of the present embodiment is an example of a reception unit.

[0045] When the main control unit 68 acquires a start instruction via the acquisition unit 66, it transmits a start signal and an operation signal for operating each device (mechanism) to each device.

[0046] The booklet creation system 1 further includes stitching control units 70A_1, 70B_1, 70A_2, 70B_2 (hereinafter referred to as "stitching control unit 70" when not particularly distinguished) that control the operations of the stitching devices 12A_1, 12B_1, 12A_2, 12B_2 respectively, folding control units 72_1, 72_2 (hereinafter referred to as "folding control unit 72" when not particularly distinguished) that control the operations of the folding mechanisms 50_1, 50_2 respectively, a conveyance control unit 74 that controls the operation of the conveyance mechanism 52, a sheet set forming control unit 76 that controls the operation of the sheet set forming mechanism 30, a binding control unit 78 that controls the operation of the binding mechanism 32, a trimming control unit 80 that controls the operation of the trimming device 20, and a top and bottom trimming control unit 82 that controls the operation of the top and bottom trimming device 22.

[0047] Based on the detection result of the sensor 54, the conveyance control unit 74 transmits a trigger signal to each stitching device 12 all at once. The conveyance control unit 74 transmits a trigger signal, for example, every time it detects the pusher 62 a predetermined number of times.

[0048] The stitching control unit 70 controls the stitching by the corresponding stitching device 12. The stitching control unit 70 controls the operations of each mechanism such as the feeding mechanism 42, the vertical transfer mechanism 44, and the horizontal transfer mechanism 46 of the stitching device 12. Each time the stitching control unit 70 receives a trigger signal, it controls the stitching device 12 to feed the sheet to be sent into one transport section 64.

[0049] The stitching control units 70A_1 and 70B_1 may control the stitching devices 12A_1 and 12B_1 so that the sheets supplied from the respective stitching devices 12A_1 and 12B_1 overlap in the first supply line 10_1 (that is, before being carried out to the folding device 16) to form one sheet set element according to an instruction from the user, for example.

[0050] Further, the stitching control units 70A_1 and 70B_1 may control the stitching devices 12A_1 and 12B_1 so that the sheets supplied from the stitching device 12A_1 and the sheets supplied from the stitching device 12B_1 form separate sheet set elements (that is, do not merge in the first supply line 10_1) according to an instruction from the user, for example. Note that the stitching control unit 70A_1 may control the stitching device 12A_1 so that the sheets supplied from the stitching device 12A_1 form a plurality of sheet set elements. Similarly, the stitching control unit 70B_1 may control the feeding unit 38 so that the sheets supplied from the feeding unit 38 of the stitching device 12B_1 form a plurality of sheet set elements. In any case, by dividing into a plurality of sheet set elements, the thickness per sheet set element can be suppressed, and it becomes possible to appropriately make creases in the folding mechanism 50.

[0051] Similarly, for the stitching control units 70A_2 and 70B_2, the stitching devices 12A_2 and 12B_2 may be controlled to form one sheet set element, or the stitching devices 12A_2 and 12B_2 may be controlled to be divided into a plurality of sheet set elements.

[0052] Next, the feeding timing will be described in more detail. The butting control unit may store information indicating the position of the corresponding butting device 12 and start driving the feeding mechanism 42 of the corresponding butting device 12 at a timing delayed according to the position from the trigger signal.

[0053] Specifically, the distance to the folding device 16 may be different for each butting device 12. At least, the distance Xa1 from the butting device 12A_1 to the folding device 16 and the distance Xb1 from the butting device 12B_1 to the folding device 16 are different from each other, and the distance Xa2 from the butting device 12A_2 to the folding device 16 and the distance Xb2 from the butting device 12B_2 to the folding device 16 are different from each other (see FIG. 1).

[0054] Therefore, the butting control unit 70 stores the distance to the folding device 16 for the corresponding butting device 12. Note that information regarding the distance may also be stored. The information regarding the distance may be information such as which butting device 12 is connected at what position in the supply line. When determining the feeding timing by each feeding mechanism 42, the butting control unit 70 considers the information regarding the distance to the folding device 16. For example, when overlapping the sheet bundle supplied by the butting device 12A and the sheet bundle supplied by the butting device 12B, the feeding timing of the butting device 12A with a shorter distance to the folding device 16 may be delayed according to the difference in distance from the feeding timing of the butting device 12B with a longer distance to the folding device 16.

[0055] Also, the confluence position with the transport mechanism 52 is different for each supply line. Therefore, if the supply lines are different, the distance to the seat set forming mechanism 30 will be different. Thus, when determining the feeding timing by each feeding mechanism 42, the alignment control unit 70 takes into account the distance transported by the transport mechanism 52. For example, when overlapping the seat set element supplied by the alignment device 12 belonging to the first supply line 10_1 and the seat set element supplied by the alignment device 12 belonging to the second supply line 10_2 in the transport section 64, the difference L (see FIG. 1) in the distance that the seat set element supplied from the first supply line 10_1 is transported by the transport mechanism 52 and the distance that the seat set element supplied from the second supply line 10_2 is transported by the transport mechanism 52. If the time required for the transport of the difference L is known, the alignment device 12 of the first supply line 10_1 may be driven at a timing earlier than that of the alignment device 12 of the second supply line 10_2 by the time required for the transport of the difference L.

[0056] When the moving speed of the conveyor belt 58 of the transport mechanism 52 is variable, the time required for the transport of the difference L may be specified from the moving speed of the conveyor belt 58 of the transport mechanism 52.

[0057] Also, when the transport speeds are different for each supply line, the feeding timing from each feeding mechanism 42 of each supply line may be determined in consideration of the difference in transport speed. For example, if the transport distances of each supply line are the same, the seat set element supplied from the supply line with the higher transport speed will reach the transport mechanism 52 earlier by that much. Therefore, the alignment device 12 of the supply line with the higher transport speed may start driving the feeding mechanism 42 at a timing that is that much later.

[0058] However, since the direction conversion mechanism and the folding mechanism 50 are interposed, the conveyance time to the merging position is likely to vary. For example, the conveyance time varies depending on the size, number of sheets, material, etc. of the sheet. Therefore, it may be possible for the user to finely adjust the driving timing of each feeding mechanism 42 of the butting device 12. The user may perform the fine adjustment using a touch panel provided in any of the systems or a PC controller provided separately from the system. In the fine adjustment, it may be possible to adjust the driving timing in both the plus direction and the minus direction with respect to the default value calculated from the logical value of the conveyance time.

[0059] It may be possible to perform fine adjustment individually for each feeding mechanism 42. In this case, individual differences of the feeding mechanisms 42 can be absorbed.

[0060] Also, for each butting device 12, it may be possible to perform the same fine adjustment collectively for a plurality of feeding mechanisms 42 included in the butting device 12. In this case, according to the tendency of the conveyance time specific to each butting device 12 to vary, the driving timings of the plurality of feeding mechanisms 42 included in each butting device 12 can be adjusted collectively, making the operation easier.

[0061] Also, for each supply line, it may be possible to perform the same fine adjustment collectively for a plurality of feeding mechanisms 42 included in the supply line. In this case, according to the tendency of the conveyance time specific to each supply line to vary, the driving timings of the plurality of feeding mechanisms 42 included in each supply line can be adjusted collectively, making the operation easier.

[0062] The above is the basic configuration of the booklet creation system 1.

[0063] FIG. 6 is a diagram showing an example of feeding the sheet set elements into the conveyance section of the conveyance mechanism 52. Here, for the sake of clarity, the sheet set elements fed into the same conveyance section are drawn vertically side by side without overlapping. The same applies to FIG. 7 described later.

[0064] In this example, the plurality of sheets (the plurality of sheets to be included in one sheet set) supplied by each supply line 10 are supplied separately as a plurality of sheet set elements. That is, both the first supply line 10_1 and the second supply line 10_2 supply the plurality of sheets separately as a plurality of sheet set elements. The same applies to FIG. 7 described later.

[0065] In this specification, the plurality of sheet set elements supplied separately by each supply line 10 and to be included in one sheet set are also referred to as "subsets". That is, each of the plurality of sheet set elements supplied by the first supply line 10_1 to be included in one sheet set is also referred to as a subset. Similarly, each of the plurality of sheet set elements supplied by the second supply line 10_2 to be included in one sheet set is also referred to as a subset.

[0066] It is assumed that one sheet set and thus one booklet are created by two sheet set elements of subsets 1-1 and 1-2 supplied from the first supply line 10_1 and a total of four sheet set elements of subsets 2-1 and 2-2 supplied from the second supply line 10_2.

[0067] The first supply line 10_1 sequentially discharges a predetermined number of sheet set elements to the conveying mechanism 52 via the folding mechanism 50_1. In this example, the first supply line 10_1 discharges the plurality of sheets to be included in one booklet separately as two sheet set elements of subset 1-1 and subset 1-2. Subset 1-1 and subset 1-2 are fed into the conveying section 64 that continues to move at a constant speed one by one (that is, at regular intervals).

[0068] The second supply line 10_2 sequentially discharges a predetermined number of sheet set elements to the conveying mechanism 52 via the folding mechanism 50_2. In this example, the second supply line 10_2 discharges a plurality of sheets included in one booklet by dividing them into two sheet set elements, subset 2-1 and subset 2-2. Subset 2-1 and subset 2-2 are fed into a plurality of conveying sections 64 that continue to move at a constant speed, skipping one (i.e., at regular intervals). Specifically, subset 2-1 is fed into the conveying section where subset 1-1 was fed and is stacked on subset 1-1. Subset 2-2 is fed into the conveying section where subset 1-2 was fed and is stacked on subset 1-2.

[0069] Note that even when the booklet creation system 1 includes three or more supply lines, the sheet set elements supplied from each of the three or more supply lines may be fed into the same conveying section as each other.

[0070] In a subsequent sheet set forming mechanism 30 (not shown in FIG. 6), subset 2-1 and subset 2-2 are stacked on subset 1-1 and subset 1-2. That is, a sheet set in which four subsets are overlapped is formed.

[0071] As a modification, subset 1-1 and subset 1-2 may be continuously fed into the conveying section 64, or may be fed skipping two, three, ···, or n.

[0072] FIG. 7 is a diagram showing another example of feeding a sheet set element into the conveying section of the conveying mechanism 52. The description will focus on the differences from FIG. 6.

[0073] The first supply line 10_1 and the second supply line 10_2 are each fed into every other one of a plurality of transport sections 64 that continue to move at a constant speed, as in the first example. However, in this example, the subsets from the first supply line 10_1 (i.e., the sheet set elements) and the subsets from the second supply line 10_2 are fed into separate transport sections 64. Specifically, subset 1-1, subset 2-1, subset 1-2, and subset 2-2 are fed into separate transport sections 64 in this order continuously.

[0074] In addition, when the booklet creation system 1 includes three or more supply lines, the sheet set elements supplied from each of the three or more supply lines may be fed into separate transport sections.

[0075] The booklet creation system 1 may store and accumulate job processing information and be able to output it. The output destination may be an operation panel or a PC via the integrated control device 26, or an external terminal such as an external PC or smartphone via a wired or wireless communication line such as the Internet. The job processing information associates and stores, based on the actual operating status of the booklet creation system 1 in the relevant job and the input information by the user, the work start time, the work end time, the time during which booklet creation was actually performed, the time required for work preparation, the type of error that occurred and the time required for its processing, the number of sheets fed, the number of booklets created, etc., with job identification information. Further, from these information, the actual time T0 required for the entire job and the time T1 during which the device was stopped may be calculated, and T2 = (T0 - T1) / T0 may be calculated as the work efficiency and managed for each job. The stopped time T1 may be divided into a planned stop time T such as a break time, 1A the work stop time T required for operations such as sheet loading work and component replacement work, 1B the performance stop time T required for error stop and its processing, 1C etc., and the efficiency may be calculated separately for more precise analysis. Also, among the actual operating time, from the number of normally created booklets NB out of the number of sheets NA fed, N B / N AIt may be calculated as efficiency. A plurality of booklet creation systems 1 may be connected to a host computer, and the efficiencies of the plurality of systems may be managed collectively, or may be managed together with a system different from the booklet creation system 1.

[0076] Next, the preparation operation of the feeding operation in the butting device 12 will be described. The "preparation operation of the feeding operation" is an operation of shifting from a standby state where the sheet cannot be fed but the sheet loading operation is possible to a state where the sheet can be fed. The preparation operation of the feeding operation is an operation of picking up one sheet from the stack of sheets after raising the loading table 40 (see FIG. 8) to a predetermined position. The preparation operation of the feeding operation in the present embodiment is, for example, raising the loading table 40 (see FIG. 8) to a height at which the uppermost sheet can be fed, feeding ejection air to separate the sheets, stabilizing the height of the uppermost sheet at a height at which it can be fed, and then sucking the uppermost sheet to adsorb one sheet from the stack of sheets onto the belt 120 (see FIG. 12). FIGS. 8 to 12 are schematic diagrams showing the preparation operation of the feeding operation in the butting device 12.

[0077] As shown in FIG. 8, a stack of sheets S0 obtained by stacking the sheets to be processed in the butting device 12 is loaded onto the loading table 40. At this time, the front end surface of the stack of sheets S0 is abutted against the shutter 102 as a front reference, and the right end surface in the feeding direction of the stack of sheets S0 is abutted against the side fence 103 as a conveyance reference.

[0078] When the start switch 92 is pressed with the sheet bundle S0 loaded on the loading table 40, as shown in FIG. 9, the conveying roller 105, the conveying roller 106, and the vertical conveying drive roller 107 start to rotate in the arrow direction, and the vertical conveying belt 109 moves in a circular motion in the arrow direction, and the vertical conveying roller 110 starts to rotate in the arrow direction. Subsequently, when the motor 111 rotates in the arrow direction J shown in the figure, the rack 113 rises due to the engagement of the gear 112 and the rack 113, and the loading table 40 rises via the support arm 104 that supports the loading table 40. When the loading table 40 rises, the upper surface of the sheet bundle S0 contacts the shielding plate 114, and when the loading table 40 rises further, the shielding plate 114 is pushed up by the upper surface of the sheet bundle S0 and rotates, and the optical axis of the level sensor 115 is blocked by the shielding plate 114. Thereby, the level sensor 115 detects the sheet bundle S0. Note that the level sensor 115 may detect the sheet bundle S0 using other known methods.

[0079] When the level sensor 115 detects the sheet bundle S0, as shown in FIG. 10, the motor 111 rotates in the arrow direction K shown in the figure for a certain period of time, the loading table 40 descends, and the upper surface of the sheet bundle S0 stops near the lower end of the air discharge port 116. As shown in FIG. 11, simultaneously with the stop of the descent of the loading table 40, the air discharge source 118 starts the discharge operation, generates a discharge pressure inside the discharge air chamber 117, and the blowing of the discharge air Ar from the air discharge port 116 starts. At this time, the discharge air Ar is blown toward the upper part of the sheet bundle S0.

[0080] Thereafter, the motor 111 intermittently rotates in the direction of arrow J, causing the loading table 40 to intermittently rise. As shown in FIG. 12, discharge air Ar is blown between the sheets in the upper layer of the sheet bundle S0, causing the upper layer of the sheet bundle S0 to lift and be sorted one by one. At this time, as the loading table 40 intermittently rises, the front end surface of the upper layer of the sheet bundle S0 operates so as to face the air discharge port 116 step by step little by little. By surely blowing the discharge air Ar at each stage, the sheets in the upper layer can be surely sorted. The uppermost lifted sheet S1 pushes up and rotates the shielding plate 114 again, and the optical axis of the level sensor 115 is blocked again. When the optical axis of the level sensor 115 is blocked again, the motor 111 stops, that is, the rising operation of the loading table 40 stops, and the air suction part 119 starts the suction operation, and the upper surface of the sheet bundle S0 is sucked by the air suction part 119. As a result, only the uppermost sheet S1 is adsorbed to the lower surface of the belt 120.

[0081] Thus, the preparation operation of the feeding work in the butting device 12 is completed. In the butting device 12 of the present embodiment, after the completion of the preparation operation of the feeding work, the state of FIG. 12 is maintained until the feeding operation of the sheets in the feeding unit 38 is started.

[0082] Next, the sheet feeding operation in the feeding unit 38 will be described. FIGS. 13 to 15 are schematic diagrams showing the operation of the feeding work in the butting device 12.

[0083] As shown in FIG. 13, first, the drive roller 121 starts to rotate. By this rotation, the belt 120 moves in a circular motion in the direction of arrow P in the figure while sucking the sheet S1, and therefore the sheet S1 moves and is conveyed in the direction of arrow P in the figure.

[0084] Next, as shown in FIG. 14, after the leading end of the taken-out sheet S1 is sandwiched between the conveying roller 105 and the conveying roller 106, the drive roller 121 stops rotating, and the air suction by the air suction part 119 stops.

[0085] Subsequently, as shown in FIG. 15, the sheet S1 is redirected downward by the guide plates 122 and 123, and is sandwiched between the vertical conveyance drive roller 124 and the vertical conveyance belt 125 and conveyed downward. At this time, when the passage of the sheet S1 is detected by the detection means 126, the air suction unit 119 sucks the next sheet S2, and subsequently, after a certain period of time has elapsed, the next sheet is conveyed. By repeating this operation, the feeding operation is continuously performed.

[0086] When the number of sheets in the sheet bundle S0 gradually decreases due to the continuous feeding operation described above, the height of the upper surface gradually becomes lower. As a result, when the level sensor 115 no longer detects the sheet bundle S0, the loading table 40 is raised, and when the level sensor 115 detects the sheet bundle S0 again, the raising of the loading table 40 stops. Therefore, the height of the upper surface of the sheet bundle S0 is always maintained at a height suitable for the feeding operation.

[0087] The above is the sheet feeding operation in the feeding unit 38.

[0088] The feeding groups will be described. In the present embodiment, the plurality of feeding units 38 are grouped into a plurality of feeding groups. The grouping of the feeding groups is set based on an input by the user via a predetermined input device. That is, the number of feeding units 38 belonging to a feeding group can be changed based on an input by the user via a predetermined input device.

[0089] In the present embodiment, since the first supply line 10_1 and the second supply line 10_2 each include two collating devices 12 each including 10 feeding units 38, the booklet creation system 1 includes 40 feeding units 38. By the operation of the operator, the 40 feeding units 38 can be divided into a plurality of feeding groups. Each feeding group includes the same number of feeding units 38. The number N1 of feeding units 38 in one feeding group satisfies 1 ≦ N1 ≦ (total number of feeding units 38 / 2). The number N2 of feeding groups satisfies 2 ≦ N2 ≦ (total number of feeding units 38 / 2). In the present embodiment, the number N1 of feeding units 38 in one feeding group is set to 10, and the number N2 of feeding groups is set to 4.

[0090] Note that N1 and N2 are not limited to the above examples. For example, N1 may be 2 and N2 may be 20. N1 may be 4 and N2 may be 10. N1 may be 5 and N2 may be 8. N1 may be 8 and N2 may be 5. N1 may be 20 and N2 may be 2. When N1 is 4 and N2 is 10 or N1 is 8 and N2 is 5, one feeding group will span multiple butting devices 12.

[0091] Among the plurality of feeding units 38 provided in one butting device 12, grouping may be performed by some of the feeding units 38. For example, among the 10 feeding units 38 provided in the butting device 12, 6 feeding units 38 may be grouped into a feeding group with N1 = 3 and N2 = 2. In this case, the remaining 4 feeding units 38 may not be used, or they may always perform feeding operations independently of the process S100 described later with reference to FIG. 17.

[0092] FIG. 16 illustrates a group setting screen 130. The group setting screen 130 is displayed by a predetermined display device. In the arrangement layout column 131, the arrangement layouts of the plurality of feeding units 38 of each butting device 12 of each supply line 10 are displayed. Although not particularly limited, the supply line 10 located upstream is displayed more to the left. That is, the first supply line 10_1 (Line1) located upstream is displayed on the left, and the second supply line 10_2 (Line2) located downstream is displayed on the right. Also, although not particularly limited, in each supply line 10, the butting device 12 located upstream is displayed more to the right. That is, in the first supply line 10_1 (Line1), the feeding units on the right side (feeding units 11 to 20) are the feeding units of the butting device 12B_1, and the feeding units on the left side (feeding units 1 to 10) are the feeding units of the butting device 12A_1. Also, in the second supply line 10_2 (Line2), the feeding units on the right side (feeding units 11 to 20) are the feeding units of the butting device 12B_2, and the feeding units on the left side (feeding units 1 to 10) are the feeding units of the butting device 12A_2.

[0093] The grouping display 132 indicates the grouping that divides a plurality of feeding units into feeding groups. That is, the grouping display 132 indicates to which feeding group each of the plurality of feeding units belongs. The grouping display 132 in the example of FIG. 16 is a dashed-line frame that surrounds the feeding units in the arrangement layout column 131, and each feeding group is surrounded by a separate frame. Conversely, the feeding units in the same feeding group are surrounded by the same frame.

[0094] In the present embodiment, the 20 feeding units of the first supply line 10_1 (Line1) are divided into two feeding groups: a first feeding group G1 including 10 feeding units of feeding units 1 to 10 of the butting device 12A_1, and a second feeding group G2 including 10 feeding units of feeding units 11 to 20 of the butting device 12B_1. The 20 feeding units of the second supply line 10_2 (Line2) are divided into two feeding groups: a third feeding group G3 including 10 feeding units of feeding units 1 to 10 of the butting device 12A_2, and a fourth feeding group G4 including 10 feeding units of feeding units 11 to 20 of the butting device 12B_2. Usually, sheets with the same content are stacked in the first to fourth feeding groups G1 to G4. Thereby, the butting operation in a certain feeding group can be continued even during the sheet stacking in other feeding groups, improving the processing efficiency.

[0095] The group setting screen 130 is provided with first to fourth use check boxes 133A to 133D. The first and second use check boxes 133A and 133B are check boxes for selecting whether or not to use the feeding units 1 to 10 and 11 to 20 of the butting devices 12A_1 and 12B_1 of the first supply line 10_1 (Line1) in the grouping of the feeding groups, respectively. The third and fourth use check boxes 133C and 133D are check boxes for selecting whether or not to use the feeding units 1 to 10 and 11 to 20 of the butting devices 12A_1 and 12B_1 of the second supply line 10_2 (Line2) in the grouping of the feeding groups, respectively. In the example of FIG. 16, since all of the first to fourth use check boxes 133A to 133D are checked, all of the feeding units of the first supply line 10_1 (Line1) and the second supply line 10_2 (Line2) are used for grouping.

[0096] The group setting screen 130 is provided with a group setting column 134. In the group setting column 134, the number of feeding units included in each feeding group is set. The group setting column 134 is provided with a two-division setting item 135, a three-division setting item 136, a four-division setting item 137, and an eight-division setting item 138. When the two-division setting item 135 is selected, the total number N0 of feeding units used for grouping in the first supply line 10_1 (Line1) and the second supply line 10_2 (Line2) is divided into two, and each feeding group is set to include N0 / 2 feeding units. When the three-division setting item 136 is selected, the total number N0 of feeding units in the first supply line 10_1 (Line1) and the second supply line 10_2 (Line2) is divided into three, and each feeding group is set to include N0 / 3 feeding units. When the four-division setting item 137 is selected, the total number N0 of feeding units in the first supply line 10_1 (Line1) and the second supply line 10_2 (Line2) is divided into four, and the feeding group is set to include N0 / 4 feeding units. When the eight-division setting item 138 is selected, the total number N0 of feeding units in the first supply line 10_1 (Line1) and the second supply line 10_2 (Line2) is divided into eight, and the feeding group is set to include N0 / 8 feeding units. In the present embodiment, as shown by the thick frame surrounding the four-division setting item 137, the four-division setting item 137 is selected.

[0097] In the present embodiment, the total number N0 of feeding units used for grouping in the first supply line 10_1 (Line1) and the second supply line 10_2 (Line2) is 40, and since the feeding units cannot be divided into three, as shown by the dotted frame surrounding the three-division setting item 136, the three-division setting item 136 cannot be selected. When any one of the above-mentioned first to fourth use check boxes 133A to 133D is unchecked, the total number N0 becomes 30 and it is possible to divide into three, and the three-division setting item 136 can be selected.

[0098] The method of setting the number of feeding units in each feeding group is not limited to the examples of 2-division, 3-division, 4-division, and 8-division as described above. The number of feeding units in each feeding group can be set as appropriate.

[0099] The group setting screen 130 is provided with a feeding order setting column 139. In the feeding order setting column 139, the order of the feeding operations in each feeding group is set. The feeding order setting column 139 is provided with an automatic setting item 140 and a manual setting item 141.

[0100] When the automatic setting item 140 is selected, the order of the feeding operations in each feeding group is set in a predetermined order. For example, the order of the feeding operations is set in the order of the feeding groups displayed on the left side of the group setting screen 130, such as the first feeding group G1, the second feeding group G2, the third feeding group G3, and the fourth feeding group G4. When the manual setting item 141 is selected, the order of the feeding operations in each feeding group is set in the order according to the input by the user. In the present embodiment, as shown by the thick frame surrounding the automatic setting item 140, the automatic setting item 140 is selected. Hereinafter, it is assumed that the feeding operations are shifted in the order of the first feeding group G1, the second feeding group G2, the third feeding group G3, and the fourth feeding group G4.

[0101] FIG. 17 is a flowchart illustrating the process S100 of the integrated control device 26 of the first embodiment. The process S100 is started in response to the operation of the start switch 92. It is assumed that sheets are loaded on the feeding units 38 of the first to fourth feeding groups G1 to G4.

[0102] In step S101, the main control unit 68 executes a preparatory operation for the feeding operation in each feeding unit 38 of the first feeding group G1.

[0103] In step S102, the main control unit 68 determines whether the preparation operation for the feeding operation in the first feeding group G1 has been completed. For example, when the level sensors 115 in all the feeding units 38 of the first feeding group G1 have continuously detected the sheet bundle S0 for a predetermined time or more, the main control unit 68 determines that the preparation operation for the feeding operation in the first feeding group G1 has been completed. If the preparation operation has been completed (Yes in step S102), the process S100 proceeds to step S103. If the preparation operation has not been completed (No in step S102), the process S100 returns to step S101, and steps S101 and S102 are repeatedly executed until the preparation operation is completed.

[0104] In step S103, the main control unit 68 executes the feeding operation in the first feeding group G1. Since the feeding operation and its preparation operation are not performed in the second to fourth feeding groups G2 to G4, it is possible to stack sheets on the feeding unit 38.

[0105] In step S104, the main control unit 68 determines whether to end the feeding operation. For example, when a predetermined end condition such as reaching the number of booklets to be created is satisfied, the main control unit 68 determines to end the feeding operation. If the feeding operation is to be ended (Yes in step S104), the process S100 ends. If the feeding operation is not to be ended (No in step S104), the process S100 proceeds to step S105.

[0106] In step S105, the main control unit 68 determines whether the sheets loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed have disappeared. For example, the main control unit 68 determines whether the sheets have disappeared based on the detection results of appropriate sensors provided for each feeding unit 38. If the sheets have disappeared (Yes in step S105), the process S100 proceeds to step S106. If the sheets have not disappeared (No in step S105), the process S100 proceeds to step S107.

[0107] In step S106, the main control unit 68 stops the feeding operations in all the feeding units 38 belonging to the feeding group in which the feeding operation is being performed. Thereafter, process S100 proceeds to step S108.

[0108] In step S107, the main control unit 68 determines whether or not a predetermined switch operation has been performed by the user. For example, when the acquisition unit 66 receives an operation input of the forced discharge switch 95 provided on the operation panel unit 90 of the registration device 12 of the second feeding group during the feeding operation in the first feeding group G1, the main control unit 68 determines that a predetermined switch operation has been performed. When a predetermined switch operation has been performed (Yes in step S107), process S100 proceeds to step S108. When a predetermined switch operation has not been performed (No in step S107), process S100 returns to step S104, and steps S104, S105, and S107 are repeatedly executed until a predetermined end condition is satisfied in step S104, no sheet is detected in step S105, or a predetermined switch operation is performed in step S107.

[0109] In step S108, the main control unit 68 executes a preparation operation for the feeding operation of the feeding group in the next order. For example, when the feeding operation of the first feeding group is being performed, the preparation operation for the feeding operation of the second feeding group G2 is executed.

[0110] In step S109, the main control unit 68 determines whether or not the preparation operation for the feeding operation in the feeding group in the next order has been completed. As for the method of determining the completion of the preparation operation here, the same method as in step S102 can be applied. When the preparation operation has not been completed (No in step S109), process S100 proceeds to step S110.

[0111] In step S110, the main control unit 68 determines whether or not the sheet loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed has run out. As for the method of detecting the absence of a sheet in the feeding group here, the same method as in step S105 can be applied. If the sheet has run out (Yes in step S110), the process S100 proceeds to step S111. If the sheet has not run out (No in step S110), the process S100 returns to step S109.

[0112] In step S111, the main control unit 68 stops the feeding operations in all of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed. For example, when the preparation operation in the second feeding group G2 has not been completed and the feeding operation in the first feeding group G1 is being executed, the main control unit 68 stops the feeding operation in the first feeding group G1. If the feeding operation in the first feeding group G1 has already been stopped, that stopped state continues. Thereafter, the process S100 returns to step S109.

[0113] When returning to step S109, if the preparation operation has been completed (Yes in step S109), the process S100 proceeds to step S112. In step S112, the main control unit 68 stops the feeding operations in all of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed. For example, when the preparation operation in the second feeding group G2 has been completed and the feeding operation in the first feeding group G1 is being executed, the main control unit 68 stops the feeding operation in the first feeding group G1. If the feeding operation in the first feeding group G1 has already been stopped, that stopped state continues.

[0114] In step S113, the main control unit 68 executes the feeding operation in the feeding group for which the preparation has been completed. After step S113, the process S100 returns to step S104. Thereafter, until a predetermined end condition is satisfied in step S104 (Yes in step S104) and the process S100 ends, steps S104 to S113 are repeatedly executed.

[0115] FIG. 18 illustrates a case assumed when the feeding operation shifts from the source feeding group to the next destination feeding group in the integrated control device 26 of the first embodiment. In case (A), during the feeding operation of the source feeding group, a user performs a predetermined switch operation (SW operation), and in response to the SW operation, the destination feeding group starts the preparatory operation for the feeding operation. Further, after the preparation is completed, the source feeding group stops the feeding operation, and the destination feeding group starts the feeding operation. Case (A) corresponds to the case where, for example, in the process S100 of FIG. 17, after step S101 starts, it is determined that No in step S104, No in step S105, Yes in step S107, Yes in step S109, and then Yes in step S104. In case (A), since the SW operation is performed by the user at an appropriate timing, an improvement in the processing efficiency of the feeding operation is expected.

[0116] Case (B) is the same as case (A) in that during the feeding operation of the source feeding group, a user performs a predetermined SW operation, and in response to the SW operation, the destination feeding group starts the preparatory operation for the feeding operation, and after the preparation is completed, the destination feeding group starts the feeding operation. However, case (B) is different from case (A) in that before the preparation is completed, the feeding unit of the source feeding group is in a state without a sheet and the feeding operation has stopped. Case (B) corresponds to the case where, for example, in the process S100 of FIG. 17, after step S101 starts, it is determined that No in step S104, No in step S105, Yes in step S107, No in step S109, Yes in step S110, and then Yes in steps S107 and S104.

[0117] In case (C), during the feeding operation of the source feeding group, before a predetermined SW operation is performed by the user, the feeding unit of the source feeding group is in a sheetless state and the feeding operation has stopped. After the feeding operation of the source feeding group stops, the destination feeding group starts the preparatory operation for the feeding operation, and after the preparation is completed, the destination feeding group starts the feeding operation. Case (C) corresponds to the case where, for example, in process S100 of FIG. 17, after step S101 starts, it is determined as No in step S104, Yes in step S105, and Yes in step S109, and then Yes in step S104.

[0118] Here, the time required from the start to the completion of the preparatory operation for the feeding operation varies depending on the conditions. For example, depending on the sheet loading amount, the time required for the loading table 40 to rise changes. For example, the less the loading amount, the longer it takes to complete the preparation. Also, for example, when the sheet is thin and soft, it takes time for the topmost height of the sheet to stabilize due to the feeding of the ejection air Ar. If the time required for the preparatory operation for the feeding operation is long, the sheet may run out from the feeding unit 38 during the feeding operation before the preparation is completed.

[0119] In contrast, the integrated control device 26 of the first embodiment is a control device for a collating system that feeds sheets from a plurality of feeding units 38 and stacks them to form a sheet set. The integrated control device 26 includes a reception unit (acquisition unit 66) that receives a predetermined switch operation by a user, and a control unit (main control unit 68) that controls the feeding of sheets from the feeding units 38. The plurality of feeding units 38 are grouped into a plurality of feeding groups. When the reception unit (acquisition unit 66) receives a predetermined switch operation by the user during a first feeding operation of feeding a sheet from a feeding unit 38 belonging to a first feeding group among the plurality of feeding groups, the control unit (main control unit 68) starts a preparation operation for a second feeding operation of feeding a sheet from a feeding unit belonging to a second feeding group different from the first feeding group, using the switch operation as a trigger. According to this configuration, the preparation operation for the feeding operation is started using the switch operation by the user as a trigger. Therefore, it becomes possible to start the preparation for sheet feeding at an appropriate timing according to various conditions regarding the preparation operation for the feeding operation. For example, even if the preparation operation for the feeding operation takes a long time, the user can start the preparation operation for the feeding operation earlier according to their judgment, so that it is possible to suppress the occurrence of a situation where the sheet in the feeding unit 38 during the feeding operation runs out. When the sheet in the feeding unit 38 during the feeding operation runs out, there is a possibility that other sheets that should have formed a sheet set together with the sheet that could not be fed have already been fed, and those other sheets become waste paper. Therefore, this embodiment can suppress the occurrence of waste paper.

[0120] In the first embodiment, the switch used for the above-described predetermined switch operation functions as a switch for causing the collation system (booklet creation system 1) to execute an operation different from the preparation operation of the second feeding operation when the switch is operated during the stop of the feeding operation. For example, when the forced discharge switch 95 used for the above-described predetermined switch operation is operated during the stop of the feeding operation, it has a function of driving the motor of the feeding mechanism 42 to discharge the sheet stopped by the feeding mechanism 42. According to this configuration, since one switch can realize the start function of the preparation operation of the feeding operation and a function different from this, the installation cost of the switch can be reduced.

[0121] In the first embodiment, the switch used for the switch operation is a switch provided in the collating device 12 having the feeding unit 38 belonging to the second feeding group among the collating devices 12 constituting the collation system (booklet creation system 1). According to this configuration, it becomes easier for the user to grasp the switch to be operated in order to execute the preparation operation of the feeding operation.

[0122] In the first embodiment, when the preparation operation of the second feeding operation is completed, the main control unit 68 stops the first feeding operation and starts the second feeding operation. According to this configuration, it is possible to improve the processing efficiency of the feeding operation.

[0123] Second Embodiment Hereinafter, the second embodiment will be described centering on the differences from the first embodiment, and the description of the common points with the first embodiment will be appropriately omitted. The second embodiment is different from the first embodiment in that when a predetermined switch operation is performed, the first feeding operation is stopped and the preparation operation of the second feeding operation is started.

[0124] FIG. 19 is a flowchart illustrating the process S200 of the integrated control device 26 of the second embodiment. Steps S201 to S204, S206, S208, and S210 in FIG. 19 are the same as steps S101 to S104, S107, S108, and S113 in FIG. 17, and thus the description thereof will be omitted.

[0125] In step S205, when the sheet runs out (Yes in step S205), process S200 proceeds to step S207.

[0126] In step S207, the main control unit 68 stops the feeding operations in all the feeding units 38 belonging to the feeding group in which the feeding operation is being performed. Thereafter, process S200 proceeds to step S208, and the preparatory operation for the feeding operation of the next feeding group is executed.

[0127] In step S209, if the preparation is not complete (No in step S209), process S200 returns to step S209. Step S209 is repeatedly executed until the preparation is complete.

[0128] FIG. 20 illustrates cases assumed when the feeding operation shifts from a source feeding group to the next destination feeding group in the integrated control device 26 of the second embodiment. Case (D) is different from case (A) in that the feeding operation of the source feeding group has stopped in response to a SW operation. Case (D) corresponds to the case where, for example, in process S200 of FIG. 19, after steps S201 start, and it is determined as No in step S204, No in step S205, Yes in step S206, and Yes in step S209, and then it is determined as Yes in step S204. Note that when it is determined that the sheet has run out before the completion of the preparatory operation for the feeding operation in the second embodiment, it corresponds to the case of case (B) in FIG. 18. Also, when it is determined that the sheet has run out before the SW operation in the second embodiment, it corresponds to the case of case (C) in FIG. 18. The same applies to case (D) in FIG. 20, cases (E-1) and (E-2) in FIG. 23, cases (F-1) and (F-2) in FIG. 26, cases (G-1) and (G-2) in FIG. 29, and case (H) in FIG. 31 in the embodiments described later.

[0129] In the second embodiment, the main control unit 68 uses the switch operation as a trigger to stop the first feeding operation and start the preparatory operation for the second feeding operation. According to this configuration, it is possible to effectively suppress the occurrence of a situation where the sheet in the feeding unit of the first feeding group runs out during the feeding preparation of the second feeding group, and thus it is possible to suppress the occurrence of waste paper.

[0130] Third Embodiment Hereinafter, the third embodiment will be described centering on the differences from the first embodiment, and the description of the common points with the first embodiment will be omitted as appropriate. The third embodiment is different from the first embodiment in that when the predetermined preparation for the second feeding operation is completed, the second feeding operation is put on standby.

[0131] FIG. 21 is a flowchart illustrating the process S300 of the integrated control device 26 according to the third embodiment. Steps S301 to S311 and S315 in FIG. 21 are the same as steps S101 to S111 and S113 in FIG. 17, and thus the description thereof will be omitted.

[0132] In step S312, the main control unit 68 waits for the feeding group for which the preparatory operation for the feeding operation has been completed. Here, the state in FIG. 12 is maintained until the sheet feeding operation in the feeding unit 38 is started.

[0133] In step S313, the main control unit 68 determines whether or not the sheet loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed has run out. If the sheet has run out (Yes in step S313), the process S300 proceeds to step S314. If the sheet has not run out (No in step S313), the process S300 returns to step S312 and the standby state is maintained until it is determined that the sheet has run out.

[0134] In step S314, the main control unit 68 stops the feeding operations in all the feeding units 38 belonging to the feeding group in which the feeding operation is being performed.

[0135] FIG. 22 is a flowchart illustrating the process S400 of the integrated control device 26 according to a modification of the third embodiment. Steps S401 to S407, S410, S411, and S417 in FIG. 22 are the same as steps S301 to S307, S310, S311, and S315 in FIG. 21, and thus the description thereof is omitted.

[0136] In step S408, the main control unit 68 executes the first preparation operation for the feeding operation of the feeding group in the following order. The first preparation operation is an operation of raising the loading table 40 to a predetermined position. The first preparation operation in the present embodiment is an operation of raising the loading table 40 until the sheet is detected by the level sensor 115.

[0137] In step S409, the main control unit 68 determines whether or not the first preparation operation for the feeding operation in the feeding group in the following order has been completed. For example, after starting the first preparation operation for the feeding operation, when the sheet is detected by the level sensor 115, the main control unit 68 determines that the first preparation operation for the feeding operation has been completed. If the first preparation operation has been completed (Yes in step S409), the process S400 proceeds to step S412. If the first preparation operation has not been completed (No in step S409), the process S400 proceeds to step S410, and steps S409 to S411 are repeatedly executed until the first preparation operation is completed.

[0138] In step S412, the main control unit 68 waits for the feeding group for which the first preparation operation for the feeding operation has been completed. Here, the state in FIG. 9 is maintained until the feeding operation of the sheet in the feeding unit 38 is started. That is, the feeding group for which the first preparation operation has been completed waits in the state when the first preparation operation has been completed.

[0139] In step S413, the main control unit 68 determines whether or not the sheet loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed has run out. If the sheet has run out (Yes in step S413), the process S400 proceeds to step S414. If the sheet has not run out (No in step S413), the process S400 returns to step S412, and the standby state is maintained until it is determined that the sheet has run out.

[0140] In step S414, the main control unit 68 stops the feeding operations in all of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed.

[0141] In step S415, the main control unit 68 executes the second preparation operation for the feeding operation of the feeding group in the following order. The second preparation operation is an operation of capturing the uppermost sheet from the sheet bundle by lowering the loading table 40 and then raising it again, and blowing out the discharge air Ar to separate the sheet. The second preparation operation of the present embodiment is an operation of lowering the loading table 40 and then raising it again, blowing out the discharge air Ar to separate the sheet, sucking the upper surface of the sheet bundle S0 by the upper surface air suction unit 119, and adsorbing only the uppermost sheet to the lower surface of the belt 120.

[0142] In step S416, the main control unit 68 determines whether or not the second preparation operation for the feeding operation in the feeding group in the following order has been completed. After starting the second preparation operation for the feeding operation, the main control unit 68 determines that the second preparation operation for the feeding operation has been completed when the sheet is detected by the level sensor 115. If the second preparation operation has been completed (Yes in step S416), the process S400 proceeds to step S417. If the second preparation operation has not been completed (No in step S416), the process S400 returns to step S415, and steps S415 to S416 are repeatedly executed until the second preparation operation is completed.

[0143] FIG. 23 illustrates cases assumed when the feeding operation shifts from the source feeding group to the next destination feeding group in the integrated control device 26 of the third embodiment and its modification. Case (E-1) is a case assumed for the third embodiment, and case (E-2) is a case assumed for the modification of the third embodiment.

[0144] Case (E-1) is the same as case (A) in that a predetermined SW operation is performed by the user during the feeding operation of the source feeding group, and in response to the SW operation, the destination feeding group starts the preparatory operation for the feeding operation. However, case (E-1) is different from case (A) in that in response to the completion of the preparatory operation for the feeding operation, the destination feeding group waits while the source feeding group continues the feeding operation. Also, case (E-1) is different from case (A) in that in response to detecting that there is no sheet in the feeding unit of the source feeding group, the destination feeding group starts the feeding operation. Case (E-1) corresponds to the case where, for example, in the process S300 of FIG. 21, after steps S301 start, and it is determined No in step S304, No in step S305, Yes in step S306, Yes in step S309, and Yes in step S313, and then Yes is determined in step S304.

[0145] In case (E-2), in response to the SW operation, the destination feeding group starts the first preparatory operation for the feeding operation, and in response to the completion of the first preparatory operation, the destination supply group is made to wait. Also, in case (E-2), in response to the sheet running out, the second preparatory operation is started in the destination feeding group and the feeding operation in the source feeding group is stopped, and in response to the completion of the second preparatory operation, the feeding operation is being executed in the destination feeding group. Case (E-2) corresponds to the case where, for example, in the process S400 of FIG. 22, after steps S401 start, and it is determined No in step S404, No in step S405, Yes in step S407, Yes in step S409, Yes in step S413, and Yes in step S416, and then Yes is determined in step S404.

[0146] In the third embodiment, when there is no sheet loaded on any of the feeding units 38 belonging to the first feeding group after the start of the preparation operation for the second feeding operation, the main control unit 68 stops the first feeding operation, and when there is no sheet loaded on any of the feeding units 38 belonging to the first feeding group in a state where the preparation operation for the second feeding operation is completed, the second feeding operation is started. According to this configuration, since the sheets loaded on the feeding units 38 of the first feeding group can be used up regardless of the timing of the switch operation, it is possible to improve the processing efficiency of the feeding operation.

[0147] Here, when the feeding group is made to wait from the completion of the preparation operation for the second feeding operation until the start of the second feeding operation, it is necessary to continuously drive the fan in order to continuously blow out the ejection air Ar during the waiting period. Therefore, there is a problem that the noise and power consumption of the fan increase. On the other hand, in a modified example of the third embodiment, the preparation operation includes a first preparation operation of raising a loading table on which a bundle of sheets is loaded in the feeding unit to a predetermined position, and a second preparation operation of capturing the uppermost sheet from the bundle of sheets by blowing out ejection air to the bundle of sheets loaded on the loading table to separate the sheets. The main control unit 68 starts the first preparation operation triggered by a switch operation, makes the second feeding group wait in the state when the first preparation operation is completed when the first preparation operation is completed, starts the second preparation operation when there is no sheet left on any of the feeding units belonging to the first feeding group after the completion of the first preparation operation, and starts the second feeding operation when the second preparation operation is completed. According to this configuration, since it is not necessary to drive the fan even during the waiting period, an increase in the noise and power consumption of the fan can be suppressed.

[0148] Fourth Embodiment Hereinafter, the fourth embodiment will be described centering on the differences from the third embodiment, and the description of the common points with the third embodiment will be appropriately omitted as needed. The fourth embodiment is different from the third embodiment in that the second feeding operation is started when a near end described later is detected.

[0149] FIG. 24 is a flowchart illustrating process S500 of integrated control device 26 of the fourth embodiment. Steps S501 to S509, S513, S515 to S516 in FIG. 24 are the same as steps S301 to S309, S312, S314 to S315 in FIG. 21, and thus their descriptions are omitted.

[0150] In step S510, main control unit 68 determines whether or not a near end at which the remaining amount of the sheet loaded on loading table 40 becomes equal to or less than a predetermined amount is detected in any one of sheet feeders 38 belonging to the sheet feeder group in which the sheet feeding operation is being performed. Whether or not it is the near end is detected by a known method by providing an appropriate sensor for each sheet feeder, for example. For example, the near end may be detected based on the number of sheets fed or the remaining number of sheets loaded on loading table 40, or the near end may be detected based on the thickness of the bundle of sheets loaded on loading table 40, or other methods may be used. If the near end is detected (Yes in step S510), process S500 proceeds to step S511. If the near end is not detected (No in step S510), process S500 returns to step S509.

[0151] In step S511, main control unit 68 stops the sheet feeding operation in all sheet feeders 38 belonging to the sheet feeder group in which the sheet feeding operation is being performed. Thereafter, process S500 proceeds to step S512.

[0152] In step S512, main control unit 68 determines whether or not the preparation operation for the sheet feeding operation in the next-order sheet feeder group has been completed. If the preparation operation has been completed (Yes in step S512), process S500 proceeds to step S516. If the preparation operation has not been completed (No in step S512), process S500 returns to step S512, and step S512 is repeatedly executed until the preparation operation is completed.

[0153] In step S514, the main control unit 68 determines whether a near end where the remaining amount of the sheet loaded on the loading table 40 becomes equal to or less than a predetermined amount is detected in any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed. If the near end is detected (Yes in step S513), the process S500 proceeds to step S514. If the near end is not detected (No in step S513), the process S500 returns to step S512 and the standby state is maintained until it is determined that the near end is detected.

[0154] FIG. 25 is a flowchart illustrating the process S600 of the integrated control device 26 according to a modification of the fourth embodiment. Steps S601 to S609, S613, S615 to S616, and S618 in FIG. 25 are the same as steps S401 to S409, S412, and S415 to S417 in FIG. 22, and thus the description thereof is omitted.

[0155] In step S610, the main control unit 68 determines whether a near end where the remaining amount of the sheet loaded on the loading table 40 becomes equal to or less than a predetermined amount is detected in any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed. If the near end is detected (Yes in step S610), the process S600 proceeds to step S611. If the near end is not detected (No in step S610), the process S600 returns to step S609.

[0156] In step S611, the main control unit 68 stops the feeding operation in all the feeding units 38 belonging to the feeding group in which the feeding operation is being performed. Thereafter, the process S600 proceeds to step S612.

[0157] In step S612, the main control unit 68 determines whether or not the first preparatory operation of the feeding operation in the feeding group in the following order has been completed. The determination of whether or not the first preparatory operation has been completed here can apply the same method as in steps S409 and S609. If the first preparatory operation has been completed (Yes in step S612), process S600 proceeds to step S615. If the first preparatory operation has not been completed (No in step S612), process S600 returns to step S612, and step S612 is repeatedly executed until the first preparatory operation is completed.

[0158] In step S614, the main control unit 68 determines whether or not a near end at which the remaining amount of the sheet loaded on the loading table 40 becomes equal to or less than a predetermined amount has been detected in any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed. If the near end has been detected (Yes in step 614), process S600 proceeds to step S615. If the near end has not been detected (No in step S614), process S600 returns to step S613, and the standby state is maintained until it is determined that the near end has been detected.

[0159] In step S616, if it is determined that the second preparatory operation of the feeding operation in the feeding group in the following order has been completed (Yes in step S616), process S600 proceeds to step S617. In step S617, the main control unit 68 stops the feeding operations in all of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed.

[0160] FIG. 26 illustrates cases assumed when the feeding operation migrates from a source feeding group to the next destination feeding group in the integrated control device 26 of the fourth embodiment and its modified example. Case (F-1) is a case assumed for the fourth embodiment, and case (F-2) is a case assumed for the modified example of the fourth embodiment.

[0161] Case (F-1) is different from case (E-1) in that when the near end is detected, the feeding operation is stopped in the feeding group of the transfer source and the feeding operation is started in the feeding group of the transfer destination. Case (F-1) corresponds to the case where, for example, in process S500 of FIG. 24, after step S501 starts, it is determined as No in step S504, No in step S505, Yes in step S507, Yes in step S509, and Yes in step S514, and then Yes in step 504.

[0162] Case (F-2) is different from case (E-2) in that when the near end is detected, the second preparation operation is started in the feeding group of the transfer destination and the feeding operation is continued in the feeding group of the transfer source, and the feeding operation is stopped in the feeding group of the transfer source in response to the completion of the second preparation operation. Case (F-2) corresponds to the case where, for example, in process S600 of FIG. 25, after step S601 starts, it is determined as No in step S604, No in step S605, Yes in step S607, Yes in step S609, Yes in step S614, and Yes in step S616, and then Yes in step 604.

[0163] In the fourth embodiment, when the remaining amount of the sheet loaded on any of the feeding units belonging to the first feeding group becomes less than or equal to a predetermined amount after the start of the preparation operation of the second feeding operation, the main control unit 68 stops the first feeding operation, and when the remaining amount of the sheet loaded on any of the feeding units belonging to the first feeding group becomes less than or equal to a predetermined amount in a state where the preparation operation of the second feeding operation is completed, the second feeding operation is started. According to this configuration, in addition to suppressing the situation where the sheets in the feeding units of the first feeding group run out and waste paper is generated, the feeding operation in the first feeding group can be continued until the remaining amount of the sheets in the feeding units of the first feeding group becomes less than or equal to a predetermined amount regardless of the timing of the switch operation, so that the processing efficiency can be improved.

[0164] In the modification of the fourth embodiment, the preparation operation includes a first preparation operation of raising the loading table 40 for loading a stack of sheets in the feeding unit 38 to a predetermined position, and a second preparation operation of capturing the uppermost sheet from the stack of sheets by blowing out discharge air to the stack of sheets loaded on the loading table 40 to separate the sheets. The main control unit 68 starts the first preparation operation triggered by a switch operation, causes the second feeding group to standby in the state when the first preparation operation is completed when the first preparation operation is completed, and starts the second preparation operation when the remaining amount of the sheets loaded on any of the feeding units belonging to the first feeding group becomes equal to or less than a predetermined amount after the completion of the first preparation operation, and starts the second feeding operation when the second preparation operation is completed. According to this configuration, the same effects as those of the modification of the third embodiment can be achieved.

[0165] In addition, in the modification of the fourth embodiment, when the near end is detected, the feeding operation is continued in the transfer source feeding group, but the present invention is not limited to this, and when the near end is detected, the feeding operation may be stopped in the transfer source feeding group.

[0166] Fifth Embodiment Hereinafter, the fifth embodiment will be described focusing on the differences from the fourth embodiment, and the description of the common points with the fourth embodiment will be omitted as appropriate. The fifth embodiment is different from the fourth embodiment in that the second feeding operation is started when a second switch operation described later is performed.

[0167] FIG. 27 is a flowchart illustrating the process S1500 of the integrated control device 26 according to the fifth embodiment. Steps S1501 to S1509, S1512, S1515, and S1516 in FIG. 27 are the same as steps S501 to S509, S513, S515, and S516 in FIG. 24, and thus the description thereof will be omitted.

[0168] In step S1510, the main control unit 68 determines whether a second switch operation has been performed by the user. For example, when the acquisition unit 66 receives an operation input of the forced discharge switch 95 provided on the operation panel unit 90 of the alignment device 12 of the second feeding group during the preparation of the feeding operation in the second feeding group G2, the main control unit 68 determines that the second switch operation has been performed. When the second switch operation has been performed (Yes in step S1510), the process S1500 proceeds to step S1511. When the second switch operation has not been performed (No in step S1510), the process S1500 returns to step S1509, and S1509 and S1510 are repeatedly executed until the preparation operation is completed or the second switch operation is performed.

[0169] In step S1511, the main control unit 68 determines whether the preparation operation for the feeding operation in the feeding group in the following order has been completed. Regarding the method for determining the completion of the preparation operation here, the same method as in step S1509 can be applied. When the preparation operation has been completed (Yes in step S1511), the process S1500 proceeds to step S1515. When the preparation operation has not been completed (No in step S1511), the process S1500 returns to step S1511, and S1511 is repeatedly executed until the preparation operation is completed.

[0170] In step S1513, the main control unit 68 determines whether a second switch operation has been performed by the user. For example, when the acquisition unit 66 receives an operation input of the forced discharge switch 95 provided on the operation panel unit 90 of the alignment device 12 of the second feeding group in the standby state, the main control unit 68 determines that the second switch operation has been performed. When the second switch operation has been performed by the user (Yes in step S1513), the process S1500 proceeds to step S1515. When the second switch operation has not been performed by the user (No in step S1513), the process S1500 proceeds to step S1514.

[0171] In step S1514, the main control unit 68 determines whether or not the sheet loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed has run out. As for the method of determining whether or not the sheet has run out here, the same method as in step S105 can be applied. If the sheet has run out (Yes in step S1514), process S1500 proceeds to step S1515. If the sheet has not run out (No in step S1514), process S1500 returns to step S1512, and the standby state is maintained until it is determined whether a second switch operation has been performed by the user or whether the sheet loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed has run out.

[0172] Note that even if not particularly shown in FIG. 27, while the preparation operation for the feeding operation of the next feeding group is being executed or during standby, the main control unit 68 always determines whether or not the sheet loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed has run out. If it is determined that the sheet has run out, while continuing the preparation operation or standby, the feeding operations in all of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed are stopped.

[0173] FIG. 28 is a flowchart illustrating process S1600 of the integrated control device 26 according to a modification of the fifth embodiment. Steps S1601 to S1609, S1612, S1614, S1615, S1617, and S1618 in FIG. 28 are the same as steps S601 to S609, S613, S615, S616, S617, and S618 in FIG. 25, and thus their descriptions are omitted.

[0174] In step S1610, the main control unit 68 determines whether a second switch operation has been performed by the user. For example, when the acquisition unit 66 receives an operation input of the forced discharge switch 95 provided on the operation panel unit 90 of the alignment device 12 of the second feed group during the preparation of the first feeding operation in the second feed group G2, the main control unit 68 determines that the second switch operation has been performed. When the second switch operation has been performed (Yes in step S1610), the process S1600 proceeds to step S1611. When the second switch operation has not been performed (No in step S1610), the process S1600 returns to step S1609, and S1609 and S1610 are repeatedly executed until the preparation operation is completed or the second switch operation is performed.

[0175] In step S1611, the main control unit 68 determines whether the first preparation operation of the feeding operation in the feeding group in the following order has been completed. The method for determining whether the first preparation operation has been completed here can apply the same method as in step S409. When the first preparation operation has been completed (Yes in step S1611), the process S1600 proceeds to step S1614. When the first preparation operation has not been completed (No in step S1611), the process S1600 returns to step S1611, and step S1611 is repeatedly executed until the first preparation operation is completed.

[0176] In step S1613, the main control unit 68 determines whether a second switch operation has been performed by the user. Regarding the method for determining whether the second switch operation has been performed here, the same method as in step S1513 can be applied. When the second switch operation has been performed (Yes in step S1613), the process S1600 proceeds to step S1614. When the second switch operation has not been performed (No in step S1613), the process S1600 returns to step S1612, and the standby state is maintained until it is determined that the second switch operation has been performed.

[0177] In step S1616, the main control unit 68 determines whether or not the sheet loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed has run out. As for the method of determining whether or not the sheet has run out here, the same method as in step S105 can be applied. If the sheet has run out (Yes in step S1616), process S1600 proceeds to step S1617. If the sheet has not run out (No in step S1616), process S1600 returns to step S1614, and steps S1614 to S1616 are repeatedly executed until it is determined whether the second preparation operation has been completed or the sheet loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed has run out.

[0178] Note that even if not particularly shown in FIG. 28, while the first or second preparation operation of the feeding operation of the next feeding group is being executed or during standby, the main control unit 68 always determines whether or not the sheet loaded on any of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed has run out. If it is determined that the sheet has run out, while continuing the first or second preparation operation or standby, the feeding operation in all of the feeding units 38 belonging to the feeding group in which the feeding operation is being performed is stopped.

[0179] FIG. 29 illustrates cases assumed when the feeding operation shifts from a certain feeding group as the source to the next feeding group as the destination in the integrated control device 26 of the fifth embodiment and its modified example. Case (G-1) is a case assumed for the fifth embodiment, and case (G-2) is a case assumed for the modified example of the fifth embodiment.

[0180] Case (G-1) is different from case (F-1) in that when the second switch operation is performed, the feeding operation in the source feeding group is stopped and the feeding operation in the destination feeding group is started. Case (G-1) corresponds to the case where, for example, in the process S1500 of FIG. 27, after step S1501 starts, it is determined as No in step S1504, No in step S1505, Yes in step S1507, Yes in step S1509, and Yes in step S1513, and then Yes is determined in step S1504.

[0181] Case (G-2) is different from case (F-2) in that when the second switch operation is performed, the second preparation operation is started in the destination feeding group and the feeding operation in the source feeding group is continued, and in response to the completion of the second preparation operation, the feeding operation in the source feeding group is stopped. Case (G-2) corresponds to the case where, for example, in the process S1600 of FIG. 28, after step S1601 starts, it is determined as No in step S1604, No in step S1605, Yes in step S1607, Yes in step S1609, Yes in step S1613, and Yes in step S1615, and then Yes is determined in step S1604.

[0182] In the fifth embodiment, when the second switch operation is performed after the start of the preparation operation for the second feeding operation, the main control unit 68 starts the second feeding operation. According to this configuration, since the user can start the second preparation operation at an arbitrary timing, the workability of the user can be improved.

[0183] Also, when the second switch operation is performed after the start of the preparation operation for the second feeding operation and before the completion of the preparation operation for the second feeding operation, the main control unit 68 starts the second feeding operation after the completion of the preparation operation for the second feeding operation.

[0184] The switch used for the second switch operation functions as a switch for causing the collation system (pamphlet creation system 1) to execute an operation different from the preparation operation of the second feeding operation when the switch is operated during the stop of the feeding operation. For example, when the forced discharge switch 95 used for the second switch operation is operated during the stop of the feeding operation, it has a function of driving the motor of the feeding mechanism 42 to discharge the sheet stopped by the feeding mechanism 42. According to this configuration, since one switch can realize the start function of the preparation operation of the feeding operation and a function different from this, the installation cost of the switch can be reduced.

[0185] This forced discharge switch 95 may also be used as a switch for a predetermined switch operation as a trigger for starting the preparation operation of the second feeding operation. In this way, the switch used for a predetermined switch operation as a trigger for starting the preparation operation of the second feeding operation and the switch used for the second switch operation may be the same switch. In this case, when the acquisition unit 66 receives an operation input of the forced discharge switch 95 provided on the operation panel unit 90 of the collation device 12 of the second feeding group in a state where the feeding operation in the first feeding group G1 is in progress and the feeding preparation in the second feeding group G2 has not started, it is determined that a predetermined switch operation as a trigger for starting the preparation operation of the second feeding operation has been performed, and the preparation operation of the second feeding operation is started. Further, after the start of the preparation operation of the second feeding operation, when the acquisition unit 66 receives an operation input of the forced discharge switch 95 again, it is determined that the second switch operation has been performed, and feeding is started in the second feeding group G2.

[0186] When the main control unit 68 determines that there is no sheet loaded on any of the feeding units belonging to the first feeding group after the start of the preparation operation of the second feeding operation and before the second switch operation is performed, the main control unit 68 stops the first feeding operation and starts the second feeding operation in a state where the preparation operation of the second feeding operation is completed. According to this configuration, when there is no sheet loaded on any of the feeding units belonging to the first feeding group, the second feeding operation can be started without waiting for the second switch operation, so the processing efficiency is improved.

[0187] In the modification of the fifth embodiment, the preparation operation includes a first preparation operation of raising the loading table 40 for loading the stack of sheets in the feeding unit 38 to a predetermined position, and a second preparation operation of capturing the topmost sheet from the stack of sheets by blowing out discharge air to the stack of sheets loaded on the loading table 40 to separate the sheets. The main control unit 68 starts the first preparation operation triggered by a switch operation. When the first preparation operation is completed, the second feeding group is made to standby in the state when the first preparation operation is completed. When a second switch operation is performed after the start of the first preparation operation, the second preparation operation is started, and when the second preparation operation is completed, the second feeding operation is started. According to this configuration, the same effects as those of the modification of the third embodiment can be obtained.

[0188] Further, when a second switch operation is performed after the start of the first preparation operation of the second feeding operation and before the completion of the first preparation operation of the second feeding operation, the main control unit 68 starts the second preparation operation after the completion of the first preparation operation of the second feeding operation.

[0189] Also, in the modification of the fifth embodiment as well, the switch used for the second switch operation functions as a switch for causing the binding system (booklet creation system 1) to execute an operation different from the second preparation operation of the second feeding operation when the switch is operated during the stop of the feeding operation.

[0190] Note that, in the modification of the fifth embodiment, the feeding operation was continued in the transfer source feeding group when the second switch operation was performed, but it is not limited to this. The feeding operation in the transfer source feeding group may be stopped when the second switch operation is performed.

[0191] Sixth Embodiment Hereinafter, the sixth embodiment will be described centering on the differences from the first embodiment, and the description of the common points with the first embodiment will be appropriately omitted as needed. The sixth embodiment is different from the first embodiment in that when a predetermined switch operation is performed, the preparation operation of the second feeding operation is started when the number of sheets fed reaches a predetermined number or more.

[0192] Figure 30 is a flowchart illustrating the process S700 of the integrated control device 26 according to the sixth embodiment. Steps S701 to S707 and S710 to S715 in Figure 30 are the same as steps S101 to S107 and S108 to S113 in Figure 17, respectively, and thus their descriptions are omitted.

[0193] In step S708, the main control unit 68 counts the number of sheets fed by each feeding unit 38 in the feeding group where the feeding operation is being performed. The counting of the number of sheets fed is performed using a known method.

[0194] In step S709, the main control unit 68 determines whether the number of sheets fed is equal to or greater than a predetermined number. If the number of sheets fed is equal to or greater than the predetermined number (Yes in step 709), the process S700 proceeds to step S711. If the number of sheets fed is less than the predetermined number (No in step S711), the process S700 returns to step S708, and steps S708 to S709 are repeatedly executed until it is determined that the number of sheets fed is equal to or greater than the predetermined number.

[0195] Figure 31 illustrates a case assumed when the feeding operation shifts from the source feeding group to the next destination feeding group in the integrated control device 26 according to the sixth embodiment. Case (H) is different from case (A) in that the counting of the number of sheets fed in the source feeding group is started in response to an SW operation, and the preparation operation for the feeding operation is started in the destination feeding group in response to the counting of the predetermined number of sheets. Case (H) corresponds to the case where, for example, in the process S700 of Figure 30, after steps S701 starts, No is determined in step S704, No is determined in step S705, Yes is determined in step S707, Yes is determined in step S709, and Yes is determined in step S712, and then Yes is determined in step 704.

[0196] In the sixth embodiment, when a predetermined number of sheets have been fed after a switch operation is performed, the main control unit 68 starts the preparatory operation for the second feeding operation. According to this configuration, it is possible to suppress a situation where the sheets in the feeding unit of the first feeding group run out and waste paper is generated. In addition, since the sheet loading operation to the transfer destination feeding group can be performed even after the switch operation, convenience is improved.

[0197] In the sixth embodiment, the number of sheets fed after a predetermined switch operation is counted. However, the present invention is not limited to this. For example, the elapsed time after a predetermined switch operation may be measured. In this case, when a predetermined time has elapsed after a predetermined switch operation, the preparatory operation for the feeding operation may be started in the transfer destination feeding group. In summary, the main control unit 68 may start the preparatory operation for the second feeding operation when a predetermined time has elapsed after the switch operation or when a predetermined number of sheets have been fed after the switch operation.

[0198] The above-mentioned predetermined time or the above-mentioned predetermined number of sheets from the switch operation to the start of the feeding preparation may be settable by the operator. Since the progress of the feeding operation in the supply group of the transfer source changes depending on the thickness of the sheet, it can be set to the number of times or the time corresponding to this change, and the working efficiency is improved. Further, the above-mentioned predetermined time or the above-mentioned predetermined number of sheets may be selectable from a plurality of stages. For example, a plurality of switches indicating times such as 5 minutes and 10 minutes may be displayed on the touch panel unit 97 as the predetermined time. Further, for example, a plurality of switches indicating the number of sheets such as 100 sheets and 300 sheets may be displayed on the touch panel unit 97 as the predetermined number of sheets. Since the user can select and set a switch indicating an appropriate above-mentioned predetermined time or the above-mentioned predetermined number of sheets according to the remaining situation of the sheets in the supply group of the transfer source, the working efficiency is improved. Further, the above-mentioned predetermined time or the above-mentioned predetermined number of sheets may be determined based on the amount of light received by the double-feed detection sensor obtained by operating the preset switch 96. This is because the amount of light received decreases as the thickness of the sheet increases. Further, the above-mentioned predetermined time or the above-mentioned predetermined number of sheets may be determined according to the thickness of the sheet directly measured by a thickness detection sensor that detects the displacement of the roller when one sheet passing through the feeding mechanism 42 is sandwiched between rollers or the like.

[0199] If a predetermined switch is operated and then a predetermined switch operation is performed again for the next next feeding group before the preparation operation for the feeding operation of the next feeding group is completed, after the feeding in the next feeding group is completed, the preparation operation for the feeding operation in the next next feeding group may be started, or after a predetermined number of sheets are fed or a predetermined time has elapsed after the predetermined switch operation is performed again, the preparation operation for the feeding operation in the next next feeding group may be started. According to this configuration, the user can reserve the preparation operation for the feeding operation by performing a predetermined switch operation each time the sheet loading into the feeding group is completed. In this case, when the preparation operation for the feeding operation is started after a predetermined number of sheets are fed or a predetermined time has elapsed, the predetermined number of times or the predetermined time until the second transfer may be set larger than the predetermined number of sheets or the predetermined time until the first transfer.

[0200] As described above, the present invention has been explained based on the embodiments. These embodiments are examples, and it is understood by those skilled in the art that various modifications are possible for each of these constituent elements and combinations of each processing process, and such modifications are also within the scope of the present invention. Hereinafter, modifications will be described.

[0201] The switch for starting the preparation operation of the feeding operation in the destination feeding group (the switch used for a predetermined switch operation) may be a switch other than the forced discharge switch 95 in the operation panel unit 90, or may be a switch provided specifically for starting the preparation operation of the feeding operation.

[0202] The switch for starting the feeding operation in the destination feeding group (the switch used for the second switch operation) may be a switch other than the forced discharge switch 95 in the operation panel unit 90, or may be a switch provided specifically for starting the feeding operation.

[0203] The switch for starting the preparation operation of the feeding operation in the destination feeding group (the switch used for a predetermined switch operation) and the switch for starting the feeding operation in the destination feeding group (the switch used for the second switch operation) may be different switches. For example, when the acquisition unit 66 receives an operation input of the raising switch 93 provided in the operation panel unit 90 of the matching device 12 of the second feeding group in a state where the feeding operation in the first feeding group G1 is in progress and the feeding preparation in the second feeding group G2 has not been started, it is determined that a predetermined switch operation as a trigger for starting the preparation operation of the second feeding operation has been performed, and the preparation operation of the second feeding operation is started. Further, after the start of the preparation operation of the second feeding operation, when the acquisition unit 66 receives an operation input of the forced discharge switch 95 again, it is determined that the second switch operation has been performed, and feeding may be started in the second feeding group G2. The raising switch 93 functions as a switch for controlling the raising of the loading table 40 of the feeding unit 38 when it is operated during the stop of the feeding operation.

[0204] The switch for starting the above preparatory work or the switch for starting the second feeding operation may be provided at other locations of the stitching device 12, or may be provided in a system component other than the stitching device 12, or may be provided in a remote operation terminal (PC controller, tablet, etc.) via wired or wireless communication. The above starting switch may be displayed on a touch panel or the display of a PC controller. In that case, the above starting switch is displayed only when the group setting screen 130 is displayed, and in other cases, the above starting switch itself may disappear or be grayed out.

[0205] The switch for starting the above preparatory work or the switch for starting the second feeding operation may be a switch provided corresponding to the feeding unit belonging to the feeding group which is the transition destination of the preparatory operation of the feeding work. In that case, the above starting switch is provided for each feeding unit 38, and the feeding group to which the feeding unit 38 where the above starting switch is pressed belongs becomes the next feeding group, and the preparatory operation of the feeding work may be started.

[0206] The handling when no sheets are loaded in any of the feeding units 38 (that is, in a state without sheets) is not particularly limited, and appropriate processing may be performed.

[0207] For example, for a feeding group including a feeding unit without sheets, it may not transition, and may transition to another feeding group where sheets are loaded. In this case, if there is no other feeding group or all feeding groups include a feeding unit without sheets, the stitching device 12 may be stopped.

[0208] For example, when some of the feeding units belonging to a certain feeding group are in a state without sheets, the main control unit 68 may skip only the feeding of sheets from the said some feeding units, or may skip the feeding of sheets from all the feeding units belonging to the said feeding group, or may stop the feeding of sheets from all the feeding groups (that is, stop the job as an error).

[0209] For example, when all the feeding units belonging to a certain feeding group are in a sheetless state, the main control unit 68 may skip the sheet feeding from the feeding group, or may stop the sheet feeding from all the feeding groups (i.e., stop the job as an error).

[0210] For example, on the group setting screen 130, the feeding units in the sheetless state may be made not to belong to or not be able to belong to any feeding group as being not for use. For example, it is an advantageous configuration when the sheet bundle is first loaded onto the feeding unit and then grouped.

[0211] For example, it may be possible to set use / non-use for each feeding unit. On the group setting screen 130, the non-use feeding units may be made not to belong to or not be able to belong to any feeding group. The use / non-use setting may be provided with a switch on the feeding unit and can be set by operating the switch, or may be set on a predetermined outer surface displayed on the display unit.

[0212] For example, it may be possible to distinguish between a transferable feeding group (a feeding group with sheets loaded on all the feeding units) and a non-transferable feeding group (a feeding group including a feeding unit without a sheet). A lamp (not shown) of the collating device belonging to the transferable feeding group may be lit, and a lamp (not shown) of the collating device belonging to the non-transferable feeding group may be turned off. For example, on the group setting screen 130, the transferable feeding group may be indicated by lighting or by the frame of the group division display 132, and the non-transferable feeding group may be indicated by being grayed out or without a frame. When it is detected that sheets are loaded on all the feeding units of the non-transferable feeding group, it may be changed to a display indicating that it is transferable. For example, on the group setting screen 130, the feeding group during the feeding operation may be indicated by a thick frame of the group division display 132, and the transferable feeding group may be indicated by a thin frame of the group division display 132.

[0213] Further, by selecting within the frame of the grouping display 132 on the group setting screen 130, the preparatory operation for the feeding operation may shift to the feeding group indicated by the selected grouping display 132.

[0214] FIG. 32 shows an example of the group setting screen 130 when there are transferable feeding groups and non-transferable feeding groups. In the example of FIG. 32, a first feeding group G1 including five feeding units 1 to 5 of the feeding unit of the stitching device 12A_1, a second feeding group G2 including five feeding units 6 to 10 of the feeding unit of the stitching device 12A_1, a third feeding group G3 including five feeding units 1 to 5 of the feeding unit of the stitching device 12A_2, and a fourth feeding group G4 including five feeding units 6 to 10 of the feeding unit of the stitching device 12A_2 are shown by the frames of the grouping display 132 as being transferable to the preparatory operation for the feeding operation. On the other hand, the grouping display 132 is not attached to indicate that the ten feeding units 11 to 20 of the feeding unit of the stitching device 12B_1 and the ten feeding units 11 to 20 of the feeding unit of the stitching device 12B_2 are not transferable to the preparatory operation for the feeding operation. Also, the first feeding group G1 and the third feeding group G3 are shown by thick frames of the grouping display 132 to indicate that the feeding operation is being performed in the first feeding group G1 and the third feeding group G3. Further, the second feeding group G2 and the fourth feeding group G4 are shown by thin frames of the grouping display 132 to indicate that the second feeding group G2 and the fourth feeding group G4 are transferable to the preparatory operation for the feeding operation.

[0215] The group setting screen 130 in FIG. 32 may be configured to be able to execute the preparatory operation for the feeding operation of the feeding group indicated by the selected grouping display 132 by selecting within the frame of the grouping display 132. For example, when the frame of the grouping display 132 of the second feeding group G2 is selected on the group setting screen 130 in FIG. 32, the preparatory operation for the feeding operation of the second feeding group G2 may be executed.

[0216] As shown in FIG. 32, the transfer of the feeding group may be performed simultaneously and in parallel in each of the first supply line 10_1 and the second supply line 10_2. For example, in the first supply line 10_1, the first feeding group G1 may perform a feeding operation, and in the second supply line 10_2, the third feeding group G3 may perform a feeding operation.

[0217] For example, 5 sheets each fed from the first supply line 10_1 and the second supply line 10_ may be bound as a set of 5 sheets each.

[0218] Also, for example, 5-sheet set elements each fed from the first supply line 10_1 and the second supply line 10_2 may be merged, and a 10-sheet set may be bound. In this case, the first to second feeding groups G1 to G2 may load sheets with the same content as each other, the third to fourth feeding groups G3 to G4 may load sheets with the same content as each other, and the first supply line 10_1 and the second supply line 10_2 may load sheets with different contents from each other.

[0219] When the first feeding operation of feeding a sheet from the feeding unit belonging to the first feeding group among the plurality of feeding groups is the first time, the main control unit 68 performs an initial preparation operation of simultaneously performing the preparation operation of the first feeding operation of the first time in the first feeding group and the preparation operation of the second feeding operation of feeding a sheet from the feeding unit belonging to the second feeding group different from the first feeding group. When the sheet loaded on any of the feeding units belonging to the first feeding group runs out, the first feeding operation is stopped, and the second feeding operation of feeding a sheet from the feeding unit belonging to the second feeding group for which the initial preparation operation has been completed is started. After all the feeding operations immediately after the initial preparation operation in the feeding group that has performed the initial preparation operation are completed, when the reception unit receives a predetermined switch operation by the user during the current feeding operation, the preparation operation of the feeding operation of feeding a sheet from the feeding unit belonging to a feeding group different from the current feeding group during the current feeding operation may be started using the switch operation as a trigger.

[0220] The initial preparation operation is a preparation operation that is performed at least before the work. First, a sheet is loaded onto the feeding unit 38 belonging to the first feeding group G1 that performs the feeding operation first, and then the feeding unit 38 belonging to the second feeding group G2 that performs the feeding operation next. When the start switch 92 is operated, the preparation operations of the feeding units 38 belonging to the first feeding group G1 and the second feeding group G2 are performed simultaneously. The operation of each feeding unit 38 is the same as the preparation operation in each of the above-described embodiments.

[0221] Preferably, the initial preparation operation is to pre-load sheets onto all of the feeding units 38 belonging to all the feeding groups for which feeding operations are scheduled, and when the start switch 92 is operated, the preparation operations of all the feeding groups for which feeding operations are scheduled are performed simultaneously. However, it is not limited to this, and it may be performed for a plurality of feeding groups that are part of the feeding groups for which work is scheduled and that include the feeding group that performs the work first.

[0222] "Simultaneously" means that the preparation operation of the first feeding operation and the preparation operation of the second feeding operation are exactly simultaneous, or the preparation operation of the second feeding operation is performed at a timing that is slightly delayed or advanced from the preparation operation of the first feeding operation. The first time refers to the first first feeding operation that is started when a sheet is loaded onto the feeding unit 38 at the first time of the butting operation and the operation of the butting device 12 is started by the start switch 92.

[0223] FIG. 33 is a flowchart illustrating the process S2000 in the case where the feeding operations of the first and second feeding groups G1 and G2 are repeatedly performed in this modified example. After loading sheets onto all the feeding units 38 belonging to the first and second feeding groups G1 and G2 before the work, the operation of the butting device 12 is started by operating the start switch 92. The process S2000 is started in response to the operation of the start switch 92.

[0224] In step S2001, the main control unit 68 executes a preparation operation (initial preparation operation) for the feeding operation simultaneously in all the feeding units 38 belonging to the first and second feeding groups. In step S2002, the main control unit 68 determines whether or not the initial preparation operation has been completed in all the feeding units 38 belonging to the first and second feeding groups. If the initial preparation operation has not been completed (No in S2002), the process S2000 returns to step S2001, and S2001 and S2002 are repeated until the initial preparation operation is completed in all the feeding units 38 belonging to the first and second feeding groups. If the initial preparation operation has been completed (Yes in S2002), the process S2000 proceeds to step S2003.

[0225] In step S2003, the main control unit 68 executes a feeding operation in the first feeding group.

[0226] In step S2004, the main control unit 68 determines whether or not the sheet loaded on any of the feeding units 38 belonging to the first feeding group has run out. The determination as to whether or not the sheet has run out here can be made by applying, for example, the same method as in step S105. If the sheet has run out (Yes in step S2004), the process S2000 proceeds to step S2005. If the sheet has not run out (No in step S2004), the process S2000 returns to step S2003, and steps S2003 and S2004 are repeated until the sheet runs out.

[0227] In step S2005, the main control unit 68 stops the feeding operation in all the feeding units 38 belonging to the first feeding group. Then, the process S2000 proceeds to step S2006.

[0228] In step S2006, the main control unit 68 executes a second feeding operation in the second feeding group. Since the preparation operation has already been completed by the initial preparation operation in the second feeding group, the second feeding operation can be started immediately after the feeding operation in the first feeding group is stopped.

[0229] In the first paper feed group where paper feed operation should be performed next after the second paper feed group, since the first paper feed operation (paper feed operation immediately after the initial preparation operation) has already been completed after the initial preparation operation, it is necessary to reload the sheet onto the paper feed unit 38 again (the same applies to the second paper feed group after this second paper feed operation is completed). Therefore, hereafter, a user's switch operation serving as a trigger for starting paper feed preparation for the paper feed group where paper feed operation should be performed next is required. Therefore, in step S2007 of process S2000, the same processes as steps S104 to S113 in the first embodiment are performed.

[0230] Note that step S2007 is not limited to the same processes as steps S104 to S113 in the first embodiment, and may be the same processes as steps S204 to S210 in the second embodiment, steps S304 to S315 in the third embodiment, steps S404 to S417 in a modification of the third embodiment, steps S504 to S516 in the fourth embodiment, steps S604 to S618 in a modification of the fourth embodiment, steps S1504 to S1506 in the fifth embodiment, steps S1604 to S1618 in a modification of the fifth embodiment, and steps S704 to S715 in the sixth embodiment, respectively.

[0231] The example in FIG. 33 illustrates the process when the paper feed operations of the first and second paper feed groups G1 and G2 are repeatedly performed. However, when the paper feed operations of a larger number of paper feed groups are repeatedly performed, an initial preparation operation may be performed. For example, when the paper feed operations of four paper feed groups G1, G2, G3, and G4 of the first, second, third, and fourth are repeatedly performed, load sheets onto all the paper feed units 38 belonging to the first, second, third, and fourth paper feed groups G1, G2, G3, and G4 before the operation, and then operate the start switch 92. When the sheet loaded on any of the paper feed units 38 belonging to the first paper feed group runs out, immediately perform the second paper feed operation from the paper feed unit 38 belonging to the second paper feed group, and then sequentially perform the operations in the order of the third and fourth. After the paper feed preparation operation of the first paper feed group where paper feed operation should be performed next after the fourth paper feed group, a predetermined switch operation serving as a trigger is required.

[0232] In the example of FIG. 33, in step S2003, the user may perform a switch operation before the sheet runs out, so as to proceed to step S2005. Further, instead of the initial preparation operations in steps S2001 to S2002, an initial first preparation operation of raising the loading table 40 to a predetermined position may be performed. Then, when it is determined in step S2004 that the sheet has run out, a second preparation operation may be started in the feeding group where the feeding operation should be performed next, and the second feeding operation may be executed after the second preparation operation is completed. The operation of the feeding unit 38 in each of the first preparation operation and the second preparation operation is the same as that in the modification example of the third embodiment.

[0233] Any combination of the above-described embodiments and modification examples is also useful as an embodiment of the present disclosure. The new embodiments generated by the combination have the effects of the embodiments and modification examples combined. It should also be understood by those skilled in the art that the functions to be performed by each constituent element described in the claims are realized by a single one of the constituent elements shown in the embodiments and modification examples or by their cooperation. For example, the function of the control unit described in the claims may be realized by a combination of the alignment control unit 70, the folding control unit 72, the conveyance control unit 74, and the sheet set formation control unit 76 of the embodiment.

Explanation of Reference Numerals

[0234] 1 booklet creation system, 10 supply line, 12 alignment device, 26 integrated control device, 66 acquisition unit, 68 main control unit.

Claims

1. A control device for a collating system that feeds sheets from a plurality of feeding units, stacks them, and forms a sheet set, comprising: a reception unit that receives a predetermined switch operation by a user; a control unit that controls the feeding of the sheets from the feeding units; wherein the plurality of feeding units are grouped into a plurality of feeding groups; when the reception unit receives a predetermined switch operation by the user during a first feeding operation of feeding a sheet from a feeding unit belonging to a first feeding group among the plurality of feeding groups, the control unit starts a preparation operation for a second feeding operation of feeding a sheet from a feeding unit belonging to a second feeding group different from the first feeding group, using the switch operation as a trigger.

2. The control device according to claim 1, wherein the switch used for the switch operation functions as a switch for causing the collating system to execute an operation different from the preparation operation for the second feeding operation when the switch is operated during a stop of the feeding operation.

3. The control device according to claim 1, wherein the switch used for the switch operation is a switch provided in a collating device having a feeding unit belonging to the second feeding group among the collating devices constituting the collating system.

4. The control device according to claim 1, wherein the preparation operation is an operation of raising a stacking table on which a stack of sheets is loaded in the feeding unit to a predetermined position and then capturing one sheet from the stack of sheets.

5. The control device according to any one of claims 1 to 4, wherein the control unit stops the first feeding operation and starts the second feeding operation when the preparation operation for the second feeding operation is completed.

6. The control device according to any one of claims 1 to 4, wherein the control unit stops the first feeding operation when the remaining amount of the sheets loaded in any of the feeding units belonging to the first feeding group becomes equal to or less than a predetermined amount after the start of the preparation operation for the second feeding operation, and starts the second feeding operation when the remaining amount of the sheets loaded in any of the feeding units belonging to the first feeding group becomes equal to or less than the predetermined amount in a state where the preparation operation for the second feeding operation is completed.

7. When there is no sheet loaded on any of the feeding units belonging to the first feeding group after the start of the preparation operation for the second feeding operation, the control unit stops the first feeding operation, and when there is no sheet loaded on any of the feeding units belonging to the first feeding group in a state where the preparation operation for the second feeding operation is completed, the control unit starts the second feeding operation. The control device according to any one of claims 1 to 4.

8. The control unit starts the preparation operation for the second feeding operation when a predetermined time has elapsed after the switch operation is performed or when a predetermined number of sheets have been fed after the switch operation is performed. The control device according to any one of claims 1 to 4.

9. The predetermined time or the predetermined number of sheets can be set by an operator. The control device according to claim 8.

10. The control unit stops the first feeding operation and starts the preparation operation for the second feeding operation using the switch operation as a trigger. The control device according to any one of claims 1 to 4.

11. The preparation operation includes a first preparation operation of raising a loading table for loading a bundle of sheets to a predetermined position in the feeding unit, and a second preparation operation of capturing the uppermost sheet from the bundle of sheets by blowing out discharge air to the bundle of sheets loaded on the loading table to separate the sheets. The control unit starts the first preparation operation using the switch operation as a trigger, when the first preparation operation is completed, makes the second feeding group standby in the state when the first preparation operation is completed, when the remaining number of sheets loaded on any of the feeding units belonging to the first feeding group becomes equal to or less than a predetermined number or when there is no sheet loaded on any of the feeding units belonging to the first feeding group after the completion of the first preparation operation, starts the second preparation operation, and starts the second feeding operation when the second preparation operation is completed. The control device according to any one of claims 1 to 4.

12. A control device for a collating system that feeds sheets from a plurality of feeding units, overlaps them, and forms a sheet set, a receiving unit that receives a predetermined switch operation by a user, a control unit that controls the feeding of the sheets from the feeding units, and is provided with the plurality of feeding units are grouped into a plurality of feeding groups, When the reception unit receives a predetermined switch operation by the user during a first sheet feeding operation of feeding a sheet from the feeding unit belonging to the first feeding group among the plurality of feeding groups, the control unit starts a preparation operation for a second sheet feeding operation of feeding a sheet from the feeding unit belonging to a second feeding group different from the first feeding group, using the switch operation as a trigger, and when a second switch operation is performed after the start of the preparation operation for the second sheet feeding operation, starts the second sheet feeding operation. A control device.

13. A control device for a butting system that feeds sheets from a plurality of feeding units and overlaps them to form a sheet set, a reception unit that receives a predetermined switch operation by the user; a control unit that controls the feeding of the sheet from the feeding unit; comprising: the plurality of feeding units are grouped into a plurality of feeding groups; When the reception unit receives a predetermined switch operation by the user during a first feeding operation of feeding a sheet from the feeding unit belonging to the first feeding group among the plurality of feeding groups, the control unit starts a preparation operation for a second feeding operation of feeding a sheet from the feeding unit belonging to a second feeding group different from the first feeding group, using the switch operation as a trigger; The preparation operation includes a first preparation operation of raising a loading table on which a stack of sheets is loaded in the feeding unit to a predetermined position, and a second preparation operation of capturing the uppermost sheet from the stack of sheets by blowing discharge air onto the stack of sheets loaded on the loading table to separate the sheets. starting the first preparation operation using the predetermined switch operation as a trigger; when the first preparation operation is completed, causing the second feeding group to wait in the state when the first preparation operation is completed; starting the second preparation operation when a second switch operation is performed after the start of the first preparation operation; A control device that starts the second feeding operation when the second preparation operation is completed.

14. The switch used for the second switch operation functions as a switch for causing the butting system to perform an operation different from the start of the second feeding operation when the switch is operated during a stop of the feeding operation. The control device according to claim 13 or 14.

15. When the control unit determines that there is no sheet loaded on any of the feeding units belonging to the first feeding group after the start of the preparation operation for the second feeding operation and before the second switch operation is performed, the control unit stops the first feeding operation and starts the second feeding operation in a state where the preparation operation for the second feeding operation is completed. The control device according to claim 13 or 14.

16. A control device for a collating system that feeds sheets from a plurality of feeding units and stacks them to form a sheet set, a receiving unit that receives a predetermined switch operation by a user; a control unit that controls the feeding of the sheets from the feeding units; comprising: the plurality of feeding units are grouped into a plurality of feeding groups; when the first feeding operation of feeding sheets from the feeding units belonging to the first feeding group among the plurality of feeding groups is the first time, the control unit performs an initial preparation operation of simultaneously performing the preparation operation for the first feeding operation for the first time in the first feeding group and the preparation operation for the second feeding operation of feeding sheets from the feeding units belonging to a second feeding group different from the first feeding group. When there is no sheet loaded on any of the feeding units belonging to the first feeding group, the control unit stops the first feeding operation and starts the second feeding operation of feeding sheets from the feeding units belonging to the second feeding group for which the initial preparation operation has been completed. After all the feeding operations immediately after the initial preparation operation in the feeding group that has performed the initial preparation operation are completed, when the receiving unit receives a predetermined switch operation by the user during the current feeding operation, the control unit starts the preparation operation for the feeding operation of feeding sheets from the feeding units belonging to a feeding group different from the current feeding group during the current feeding operation, using the switch operation as a trigger. A control device.

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