Medium processor and image formation system

Abstract

To provide a medium processor which improves binding quality of liquid application binding processing irrespective of types of medium.SOLUTION: The medium processor comprises: liquid application means; medium processing means; input means for at least receiving input of medium characteristics determining medium type and liquid characteristics representing characteristics of liquid used for liquid application; and control means for controlling the liquid application means and the medium processing means on the basis of the medium characteristics and the liquid characteristics which are inputted. The control means comprises a trained model obtained by machine learning, as teacher data, correlation among medium characteristics individually determining a plurality of types of media, the liquid characteristics representing characteristics of liquid used for the liquid application, liquid application amount which is an amount of liquid to be applied to the medium by liquid application and physical pressure applied to the medium in predetermined processing. The control means further comprises processing control amount setting means for setting optimal application amount of liquid and strength of physical pressure by using the trained model according to the medium characteristics and the liquid characteristics which are inputted.SELECTED DRAWING: Figure 11

Description

[Technical Field]

[0001] The present invention relates to a media processing device and an image forming system. [Background technology]

[0002] There are known media processing devices that perform a "binding process" to bind the ends of a stack of sheets of media. There are also known image forming systems in which a media processing device that performs the above-mentioned binding process is connected to an image forming device that forms images on sheet media.

[0003] It should be noted that sheet-like media may be made of various materials. In this specification, the sheet-like medium is assumed to be "paper," which is generally used widely for image formation, etc. Furthermore, a "paper stack" in which multiple sheets are stacked will be used as an example of a bundle of multiple sheets.

[0004] In a media processing device that performs a binding process by pressurizing a portion of a sheet stack, a configuration is disclosed in which, when applying liquid to the media and then pressurizing the media to bind it, the pressure applied varies depending on whether or not liquid is applied to the media (see Patent Document 1). Summary of the Invention [Problem to be solved by the invention]

[0005] The prior art disclosed in Patent Document 1 changes the pressure simply by whether or not liquid is applied. Since applying liquid affects the binding strength due to the applied pressure, it is desirable to apply pressure appropriate to the state of the medium after the liquid is applied. In this regard, the prior art does not take into account the state of the medium after the liquid is applied, for example, the fact that the degree of liquid penetration varies depending on the type of medium.

[0006] That is, in the conventional technology, depending on the type of medium, the effect of applying a liquid to improve the binding force is not fully exhibited, and there is a problem with the binding quality.

[0007] The present invention aims to provide a media processing device that can improve the binding quality in a binding process that involves applying liquid, regardless of the type of media. [Means for solving the problem]

[0008] In order to solve the above problem, one aspect of the present invention relates to a media processing device that performs a predetermined process on a stack of media including at least one sheet of media to which liquid has been applied, and is characterized in that it comprises: a liquid application means that performs the liquid application using a liquid application member that has liquid permeated therein; a medium processing means that performs the predetermined process; an input means that accepts input of at least medium characteristics that identify the type of media and liquid characteristics that indicate the identity of the liquid used in the liquid application; and a control means that controls the operation of the liquid application means and the medium processing means based on the input medium characteristics and liquid characteristics, wherein the control means comprises a trained model that has been machine-learned using training data that indicates the correlation between the medium characteristics that individually identify the types of multiple media, the liquid characteristics that indicate the identity of the liquid used in the liquid application, the liquid application amount, which is the amount of liquid applied to the medium by the liquid application, and the physical pressure applied to the medium in the predetermined process, and includes a processing control amount setting means that sets the optimal liquid application amount and the strength of the physical pressure using the trained model in accordance with the input medium characteristics and liquid characteristics.

[0009] According to the present invention, it is possible to improve the binding quality in a binding process involving the application of liquid, regardless of the type of medium. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing the overall configuration of an image forming system. [Figure 2] FIG. 2 is a diagram showing the internal structure of a post-processing device included in the image forming system. [Figure 3]FIG. 4 is a schematic diagram of the edge binding processing section as viewed from the upstream side in the conveyance direction. [Figure 4] FIG. 4 is a schematic diagram of the edge binding processing section as viewed from the liquid applying means side in the main scanning direction. [Figure 5] FIG. 4 is a diagram showing the arrangement and configuration of a second liquid storage tank in the post-treatment device. [Figure 6] FIG. 4 is a diagram showing a detachable configuration of a second liquid storage tank in the post-treatment device. [Figure 7] FIG. 4 is a schematic diagram showing the configuration of a crimping unit of the edge binding processing section. [Figure 8] FIG. 2 is a hardware configuration diagram of a control block that controls the post-processing device. [Figure 9] 6A to 6C are diagrams illustrating steps of a liquid application operation and a pressure bonding operation by the edge binding processing unit. [Figure 10] 5A and 5B are diagrams showing an example of the correlation between pressing force and liquid deposition amount according to the first embodiment. [Figure 11] 10 is a flowchart illustrating the flow of a liquid application binding process according to the first embodiment. [Figure 12] FIG. 11 is a schematic diagram of an end binding processing section according to a second embodiment, as viewed from the liquid applying unit side in the main scanning direction. [Figure 13] FIG. 11 is a diagram showing an example of the correlation between pressing force and liquid temperature according to the second embodiment. [Figure 14] 13A and 13B are diagrams showing an example of the correlation between the pressing force and the amount of liquid applied according to the third embodiment. [Figure 15] 11 is a flowchart illustrating the flow of a liquid application binding process according to a third embodiment. [Figure 16] FIG. 13 is a diagram showing an example of the correlation between the number of times liquid is applied and the amount of liquid applied according to the fourth embodiment. [Figure 17] 10 is a flowchart illustrating the flow of a liquid application binding process according to a fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the overall configuration of an image forming system 1 according to this embodiment. The image forming system 1 has the function of forming an image on paper P as an embodiment of a sheet-like medium and performing predetermined processing (so-called "post-processing"), including binding, on the paper P on which the image has been formed. As shown in FIG. 1, the image forming system 1 is configured by combining an image forming device 2 and a post-processing device 3 as an embodiment of a media processing device according to the present invention.

[0012] The image forming device 2 forms an image on a sheet P and discharges the sheet P with the image formed thereon to the post-processing device 3. The image forming device 2 includes a tray in which the sheet P is stored, a conveying unit that conveys the sheet P stored in the tray, and an image forming unit that forms an image on the sheet P conveyed by the conveying unit.

[0013] The image forming unit may be an inkjet type that forms an image using ink, or an electrophotographic type that forms an image using toner. The configuration of the image forming apparatus 2 is already well known, so a detailed description thereof will be omitted.

[0014] FIG. 2 is a diagram showing the internal structure of a post-processing device 3 (media processing device) according to the first embodiment. The post-processing device 3 performs post-processing on sheets P on which images have been formed by the image forming device 2. One type of post-processing according to this embodiment is a binding process known as a "pressure binding process" in which a stack of multiple sheets P on which images have been formed (a sheet stack) is bound without using staples. Another type of post-processing according to this embodiment is a binding process known as a "staple binding process" in which a stack of multiple sheets P on which images have been formed (a sheet stack) is bound using staples. Hereinafter, a stack of multiple sheets P (a media stack) will be referred to as a "sheet stack Pb." More specifically, the "pressure binding process" according to this embodiment is a process known as "pressure binding" in which pressure is applied to a binding position corresponding to a portion of the sheet stack Pb to deform (pressure-deform) the binding position and bind the sheets.

[0015] The binding processes that can be performed by the post-processing device 3 include an end binding process for binding the end portion of the sheet bundle Pb and a saddle binding process for binding the center portion of the sheet bundle Pb.

[0016] The post-processing device 3 includes pairs of transport rollers 10 to 19 (transport section) and a switching member 20. The pairs of transport rollers 10 to 19 transport the paper P supplied from the image forming device 2 inside the post-processing device 3.

[0017] More specifically, the pairs of conveying rollers 10 to 13 convey the paper P along a first conveying path Ph1. The pairs of conveying rollers 14 to 15 convey the paper P along a second conveying path Ph2. The pairs of conveying rollers 16 to 19 convey the paper P along a third conveying path Ph3.

[0018] The first conveying path Ph1 is a path from a supply port for paper P from the image forming device 2 to the first discharge tray 21. The second conveying path Ph2 is a path that branches off from the first conveying path Ph1 between the pair of conveying rollers 11 and 14 in the conveying direction, and leads to the second discharge tray 26 through the internal tray 22 (placing section).

[0019] The third transport path Ph3 branches off from the first transport path Ph1 between the pair of transport rollers 11 and 14 in the transport direction, and leads to the third discharge tray 30.

[0020] The switching member 20 is disposed at a branching position of the first conveying path Ph1 and the second conveying path Ph2. The switching member 20 is configured to be switchable between a first position where the sheet P is discharged to the first discharge tray 21 via the first conveying path Ph1, and a second position where the sheet P conveyed along the first conveying path Ph1 is guided to the second conveying path Ph2. Furthermore, when the rear end of the sheet P that has entered the second conveying path Ph2 passes the pair of conveying rollers 11, the pair of conveying rollers 14 is rotated in the reverse direction, so that the sheet P is guided to the third conveying path Ph3. The post-processing device 3 also includes multiple sensors (indicated by ▲ in FIG. 2) that detect the position of the sheet P on each of the conveying paths Ph1, Ph2, and Ph3.

[0021] The post-processing device 3 includes a first discharge tray 21. The paper sheets P discharged through the first conveyance path Ph1 are placed on the first discharge tray 21. Of the paper sheets P supplied from the image forming device 2, those that are not to be bound are discharged to the first discharge tray 21.

[0022] The post-processing device 3 also includes an internal tray 22 as a loading tray, an end fence 23, side fences 24L and 24R, an edge-stitching processing unit 25, a staple binding processing unit 155, and a second discharge tray 26. The internal tray 22, the end fence 23, the side fences 24L and 24R, the edge-stitching processing unit 25, and the staple binding processing unit 155 perform edge-stitching processing on a sheet bundle Pb made up of a plurality of sheets P transported through the second transport path Ph2. The second discharge tray 26 is where the sheet bundle Pb that has been edge-stitched is discharged from the sheet bundle P supplied from the image forming device 2.

[0023] The "edge binding process" referred to here includes "parallel binding process" in which binding process is performed along one side of the paper stack Pb that is parallel to the main scanning direction, "diagonal binding process" in which binding process is performed at a corner of the paper stack Pb, and "vertical binding process" in which binding process is performed along one side of the paper stack Pb that is parallel to the transport direction.

[0024] Hereinafter, the direction from the conveying roller pair 15 toward the end fence 23 is defined as the "conveying direction" of the paper P. In other words, the "conveying direction" in this specification corresponds to the direction in which the paper P, discharged from the image forming device 2, moves toward the second discharge tray 26 by the conveying roller pair 10, etc., and then moves toward the end fence 23 by the conveying roller pair 15. In addition, the direction perpendicular to the thickness direction and the conveying direction of the paper P is defined as the "main scanning direction (width direction of the paper P)."

[0025] The multiple sheets of paper P transported in order via the second transport path Ph2 are temporarily placed on the internal tray 22, which serves as a loading tray. The end fence 23 aligns the position of the sheets of paper P or the sheet bundle Pb placed on the internal tray 22 in the transport direction. The side fences 24L and 24R align the position of the sheets of paper P or the sheet bundle Pb placed on the internal tray 22 in the main scanning direction. The edge binding processing unit 25 and the staple binding processing unit 155 perform edge binding processing on the ends of the sheet bundle Pb aligned by the end fence 23 and the side fences 24L and 24R. Then, the transport roller pair 15 discharges the sheet bundle Pb that has been edge-stitched onto the second discharge tray 26.

[0026] Furthermore, the post-processing device 3 further includes an end fence 27, a saddle stitching processing unit 28, a paper folding blade 29, and a third discharge tray 30. The end fence 27, the saddle stitching processing unit 28, and the paper folding blade 29 perform saddle stitching on a paper stack Pb made up of a plurality of paper sheets P transported through the third transport path Ph3. The paper stack Pb that has been saddle stitched is discharged to the third discharge tray 30 from among the paper sheets P supplied from the image forming device 2.

[0027] The end fence 27 aligns the positions in the conveyance direction of multiple sheets P conveyed in sequence through the third conveyance path Ph3. The end fence 27 is also configured to be movable between a binding position where the center of the sheet stack Pb faces the saddle stitching processing unit 28, and a folding position where the center faces the paper folding blade 29. The saddle stitching processing unit 28 stitches the center of the sheet stack Pb aligned by the end fence 27 at the binding position. The paper folding blade 29 folds the sheet stack Pb placed on the end fence 27 at the folding position in half and clamps it between the conveyance roller pair 18. The conveyance roller pairs 18 and 19 discharge the sheet stack Pb that has been saddle stitched onto the third discharge tray 30.

[0028] The post-processing device 3 also includes a first liquid storage tank 43 (first liquid storage section) and a first liquid supply section 45 (part of the liquid application section 31) in the edge stitching processing section 25. The first liquid storage tank 43 and the first liquid supply section 45 are not shown in FIG. 2. The post-processing device 3 also includes a second liquid supply section 54 (part of the liquid supply means), a liquid supply pump 55 (part of the liquid supply means), the second liquid storage tank 53 (part of the second liquid storage section), and a second liquid storage tank fixing section 52 (part of the second liquid storage section) as components for replenishing the first liquid storage tank 43 with liquid. The liquid stored in the second liquid storage tank 53 is supplied to the first liquid storage tank 43 via the second liquid storage tank fixing section 52, the liquid supply pump 55, and the second liquid supply section 54.

[0029] Fig. 3 is a schematic diagram of the edge binding processing unit 25, which applies liquid and performs pressure binding processing, as viewed from the upstream side in the transport direction of the paper P. Fig. 4 is a schematic diagram of the edge binding processing unit 25 as viewed from the liquid application unit 31 side in the main scanning direction. As shown in Fig. 3, the edge binding processing unit 25 includes a liquid application unit 31 that performs processing operations related to liquid application, and a pressure bonding unit 32, which is an example of a post-processing unit, that performs pressure binding processing. The liquid application unit 31 and the pressure bonding unit 32 are arranged adjacent to each other in the main scanning direction, downstream of the internal tray 22 in the transport direction.

[0030] The liquid application unit 31 applies the liquid stored in the first liquid storage tank 43 to the paper P or paper stack Pb placed on the internal tray 22. Hereinafter, applying liquid to the paper P or paper stack Pb will be referred to as "liquid application," and the process for applying liquid will be referred to as "liquid application process."

[0031] Here, the liquid stored in the first liquid storage tank 43 for "liquid application" is, more specifically, a liquid compound of hydrogen and oxygen represented by the chemical formula "H2O" as its main component. As long as it is in a liquid state, its temperature does not matter, and it may be so-called warm water or hot water. Furthermore, it is not limited to pure water, but may also contain purified water, or ionized salts. The metal ion content does not matter, and the hardness may range from so-called soft water to ultra-hard water.

[0032] In addition to the main ingredient, additives may be added. It may contain residual chlorine, which is used in tap water, and it is also desirable to add colorants, penetrants, pH adjusters, preservatives such as phenoxyethanol, and drying inhibitors such as glycerin. Furthermore, inks used in inkjet printers and water-based pens also contain water, so these may also be used as "liquid application."

[0033] The liquid is not limited to those specifically mentioned here, and any "water" in the broad sense, such as hypochlorous acid water or an ethanol solution diluted for disinfection, will also work, but if the only purpose is to enhance the binding strength after binding, tap water, which is easy to obtain and manage, can be used. Also, using a liquid whose main component is water, such as those exemplified above, can improve the binding strength of the paper stack Pb more than using a liquid whose main component is not water.

[0034] Both the liquid application unit 31 and the pressure bonding unit 32 are configured to be movable in the main scanning direction by transmitting the driving force of the edge binding processing unit movement motor 50. The position where liquid is applied to the paper P or the paper stack Pb by the liquid application unit 31 (liquid application position or liquid application area) corresponds to the position where pressure binding is to be performed on the paper stack Pb by the pressure bonding unit 32 (press binding position or pressure binding area). Therefore, in the following description, the liquid application position (or liquid application area) and the pressure binding position (or pressure binding area) are denoted by the same reference numeral.

[0035] Liquid application unit 31 as a liquid application means includes a lower pressure plate 33 as a platform for placing paper sheet P or paper stack Pb, an upper pressure plate 34, a liquid application unit movement mechanism 35, and a liquid application mechanism 36. The components of liquid application unit 31 (lower pressure plate 33, upper pressure plate 34, liquid application unit movement mechanism 35, liquid application mechanism 36) are held by liquid application frame 31a and base member 48.

[0036] The lower pressure plate 33 and the upper pressure plate 34 are disposed downstream of the internal tray 22 in the conveying direction. The paper P or paper stack Pb placed on the internal tray 22 is also placed on the lower pressure plate 33. The lower pressure plate 33 is provided on a lower pressure plate holder 331. The upper pressure plate 34 is configured to be movable in the thickness direction of the paper P or paper stack Pb at a position facing the paper P or paper stack Pb placed on the internal tray 22. That is, the lower pressure plate 33 and the upper pressure plate 34 are disposed opposite each other in the thickness direction of the paper P or paper stack Pb (hereinafter simply referred to as the "thickness direction"), sandwiching the paper P or paper stack Pb placed on the internal tray 22 therebetween. Furthermore, the upper pressure plate 34 has a through-hole 34a penetrating in the thickness direction at a position facing the tip of the liquid application member 44 (part of the liquid application unit 31) held via a holding unit 46 attached to the base plate 40.

[0037] The liquid application unit movement mechanism 35 moves the upper pressure plate 34, the base plate 40, the holding unit 46, the liquid application member 44, the first liquid supply unit 45, and the first liquid storage tank 43 in the thickness direction of the paper sheet P or the paper stack Pb. The liquid application unit movement mechanism 35 according to this embodiment moves the upper pressure plate 34, the base plate 40, the first liquid storage tank 43, the liquid application member 44, the first liquid supply unit 45, and the holding unit 46 in an interlocking (integrated) manner using a single liquid application unit movement motor 37. The liquid application unit movement mechanism 35 includes, for example, the liquid application unit movement motor 37, a trapezoidal screw 38, a nut 39, the base plate 40, columnar members 41 a, 41 b, and coil springs 42 a, 42 b.

[0038] The liquid applicator movement motor 37 generates a driving force that moves the upper pressure plate 34, the base plate 40, the holding unit 46, the liquid applicator member 44, the first liquid supply unit 45, and the first liquid storage tank 43. The trapezoidal screw 38 extends in the thickness direction of the paper sheet P or the stack of paper sheets Pb, and is supported by the liquid applicator frame 31a of the liquid applicator 31 so as to be rotatable in forward and reverse directions. The trapezoidal screw 38 is connected to the output shaft of the liquid applicator movement motor 37 via a pulley, a belt, or the like. The nut 39 is threadedly engaged with the trapezoidal screw 38. The driving force of the liquid applicator movement motor 37 is transmitted to rotate the trapezoidal screw 38 in forward and reverse directions, causing the nut 39 to move back and forth on the trapezoidal screw 38.

[0039] The base plate 40 is disposed at a position spaced apart from the upper pressure plate 34. The base plate 40 holds the liquid application member 44 with the tip of the liquid application member 44 protruding from the base plate 40 toward the upper pressure plate 34. The base plate 40 is connected to a trapezoidal screw 38 via a nut 39, and is configured to be able to move back and forth along the trapezoidal screw 38 as the trapezoidal screw 38 rotates forward and backward. The position of the base plate 40 in the thickness direction of the paper sheet P or paper stack Pb is detected by a position detection sensor 40a.

[0040] The pillars 41a and 41b protrude from the base plate 40 around the tip of the liquid application member 44 toward the upper pressure plate 34. The pillars 41a and 41b are configured to be movable relative to the base plate 40 in the thickness direction. The pillars 41a and 41b hold the upper pressure plate 34 at their tips on the lower pressure plate 33 side. The tips of the pillars 41a and 41b opposite the lower pressure plate 33 are provided with stoppers to prevent the pillars 41a and 41b from coming off the base plate 40. The coil springs 42a and 42b are fitted around the pillars 41a and 41b between the base plate 40 and the upper pressure plate 34. The coil springs 42a and 42b bias the upper pressure plate 34 and the pillars 41a and 41b toward the lower pressure plate 33 with respect to the base plate 40.

[0041] The liquid application mechanism 36 applies liquid to the paper sheet P or the paper sheet bundle Pb placed on the internal tray 22. More specifically, the liquid application unit 31 applies liquid to at least one sheet of paper P that constitutes the paper sheet bundle Pb by bringing the liquid application member 44 into contact with the paper sheet P or the paper sheet bundle Pb.

[0042] The liquid application mechanism 36 includes a first liquid level sensor 43a (first liquid detection means), a first liquid storage tank 43, a liquid application member 44, a first liquid supply unit 45, and a holding unit 46. The first liquid storage tank 43 stores liquid for application to the paper sheet P or the paper stack Pb. The amount of liquid stored in the first liquid storage tank 43 is detected by the first liquid level sensor 43a. The first liquid storage tank 43 is connected to the base plate 40 via the holding unit 46.

[0043] The liquid application member 44 applies the liquid stored in the first liquid storage tank 43 to the paper sheet P or the paper stack Pb. The liquid application member 44 and the first liquid supply unit 45, which is installed so as to be in close contact with the liquid application member 44, are both held by a holding unit 46. The holding unit 46 is also held by the base plate 40. The holding unit 46 is a long cylindrical body (for example, a tube) that is inserted into the first liquid supply unit 45. This makes it possible to prevent the liquid absorbed by the first liquid supply unit 45 from leaking or evaporating.

[0044] One end of the first liquid supply unit 45 is in close contact with the liquid application member 44, and the other end is immersed in the liquid stored in the first liquid storage tank 43. That is, the other end of the first liquid supply unit 45 corresponds to a liquid immersion unit that sucks up the liquid and supplies it to the liquid application member 44. The liquid application member 44 and the first liquid supply unit 45 are made of a material with high liquid absorption (e.g., sponge or fiber), such as an elastic resin formed with open cells. Therefore, when the other end of the first liquid supply unit 45 is immersed in the stored liquid, it absorbs the liquid by capillary action, thereby filling the first liquid supply unit 45 and the liquid application member 44 with the liquid. The leading end surface of the liquid application member 44 according to this embodiment is flat. Furthermore, the liquid application member 44 according to this embodiment is supported by the base plate 40 so that the leading end surface is parallel to the paper sheet P or paper stack Pb placed on the internal tray 22.

[0045] Furthermore, a liquid applicator frame 31a that holds the components of the liquid applicator 31 has a liquid applicator rotation shaft 562 equipped with a drive transmission gear 562a fixed to its bottom surface. The liquid applicator rotation shaft 562 and drive transmission gear 562a are rotatably held in forward and reverse directions on a base member 48 on which the liquid applicator frame 31a is provided. The drive transmission gear 562a is meshed with an output gear 563a of a liquid applicator rotation motor 563. The liquid applicator 31 is configured to be rotatable in forward and reverse directions on the base member 48 about the liquid applicator rotation shaft 562 as a result of the driving force of the liquid applicator rotation motor 563 being transmitted to the liquid applicator rotation shaft 562 via the output gear 563a and the drive transmission gear 562a.

[0046] 4, the post-processing device 3 further includes a second liquid storage tank fixing portion 52 (part of the second liquid storage portion), a second liquid storage tank 53 (part of the second liquid storage portion), a second liquid supply portion 54, and a liquid supply pump 55 in order to supply liquid to the first liquid storage tank 43. However, the specific method for supplying liquid to the first liquid storage tank 43 is not limited to the following example, and the user may directly replenish the liquid into the first liquid storage tank 43.

[0047] The arrangement and configuration of the second liquid storage tank 53 will be described with reference to Figures 5 and 6. Figure 5 shows an example of the arrangement and configuration of the second liquid storage tank 53 as a main tank. Figure 5(A) illustrates a state in which the cover (front door 71) of the post-processing device 3 is open. Figure 5(B) is a cross-sectional view of the post-processing device 3 as seen from the side, illustrating a state in which the cover (front door 71) of the post-processing device 3 is closed.

[0048] As shown in FIG. 5 , the second liquid storage tank 53 is installed in a position that can be accessed when the front door 71 of the post-processing device 3 is opened. In addition, a main body side plate 72 of the post-processing device 3 is provided between the positions where the second liquid storage tank 53 and the second liquid storage tank fixing part 52 are arranged and the positions where the first liquid storage tank 43 and the like are arranged. A liquid drain plug 611 is provided on the second liquid storage tank fixing part 52. After the liquid remaining in the first liquid storage tank 43 and the second liquid supply part 54 is transferred back to the second liquid storage tank fixing part 52, the liquid stored in the second liquid storage tank fixing part 52 can be drained from the inside of the post-processing device 3 by opening the liquid drain plug 611. This makes it possible to perform maintenance on the post-processing device 3 and to prevent the liquid from freezing.

[0049] 6 illustrates an example in which the second storage tank 53 is detachably attached to the second storage tank fixing part 52, and an example in which the second storage tank 53 is refilled with liquid. As shown in FIG. 5, the second storage tank 53 is configured to be detachably attached to the second storage tank fixing part 52 so that it can be refilled with liquid. The second storage tank fixing part 52 is provided with a set detection sensor 532 that detects that the second storage tank 53 is set in the second storage tank fixing part 52. When the second storage tank 53 is not set in the second storage tank fixing part 52 (unset state), the outlet of the second storage tank 53 is blocked by a liquid supply valve 531, preventing liquid from leaking. When the second storage tank 53 is set in the second storage tank fixing part 52, the liquid supply valve 531 is pushed up, causing the liquid stored in the second storage tank 53 to flow into the second storage tank fixing part 52, allowing the liquid to be stored in the second storage tank fixing part 52.

[0050] The second liquid storage tank fixing portion 52 stores liquid to be supplied to the first liquid storage tank 43. The second liquid storage tank fixing portion 52 is attached to a main body side plate 72 of the post-processing device 3 outside the range of movement of the edge binding processing portion 25 (liquid application portion 31) in the main scanning direction. The amount of liquid stored in the second liquid storage tank fixing portion 52 is detected by a second liquid level sensor 52a (second liquid detection means).

[0051] The second liquid storage tank 53 (liquid bottle) stores liquid to be supplied to the second liquid storage tank fixing part 52. The second liquid storage tank 53 is configured to be attachable to and detachable from the second liquid storage tank fixing part 52. When the second liquid storage tank 53 is attached to the second liquid storage tank fixing part 52, liquid moves from the second liquid storage tank 53 to the second liquid storage tank fixing part 52 until the amount of liquid in the second liquid storage tank fixing part 52 reaches a second upper limit. On the other hand, when the amount of liquid in the second liquid storage tank fixing part 52 reaches the second upper limit, the movement of liquid from the second liquid storage tank 53 to the second liquid storage tank fixing part 52 stops.

[0052] The second liquid supply unit 54 connects the second liquid storage tank fixing unit 52 and the first liquid storage tank 43. The second liquid supply unit 54 supplies the liquid stored in the second liquid storage tank fixing unit 52 to the first liquid storage tank 43. The second liquid supply unit 54 is configured, for example, with a pipe, a hose, or a combination of these. The diameter (inner diameter dimension) of the second liquid supply unit 54 is set, for example, to a size that enables the supply rate (second supply rate) of the liquid supplied from the second liquid storage tank fixing unit 52 to the first liquid storage tank 43 through the second liquid supply unit 54 to be faster than the supply rate (first supply rate) of the liquid supplied from the first liquid storage tank 43 to the liquid-applying member 44 through the first liquid supply unit 45.

[0053] Liquid supply pump 55 is attached to main body side plate 72 of post-processing device 3 together with second liquid storage tank fixing portion 52. Liquid supply pump 55 supplies (pressure-feeds) the liquid stored in second liquid storage tank fixing portion 52 to first liquid storage tank 43 through second liquid supply portion 54.

[0054] As shown in FIG. 3, the crimping unit 32 (post-processing means) binds the sheet stack Pb by clamping, pressing, and deforming at least a portion of the sheet stack Pb to which liquid has been applied by the liquid application unit 31 using the concave and convex upper and lower crimping teeth 32a and 32b. Hereinafter, the process and operation of deforming and binding at least a portion of the sheet stack Pb by clamping and pressing the upper and lower crimping teeth 32a and 32b is referred to as "crimp binding." In other words, the crimping unit 32 can bind the sheet stack Pb without using a binding member such as a staple. The components of the crimping unit 32 (the upper and lower crimping teeth 32a and 32b) are provided on a crimping frame 32c.

[0055] FIG. 7 is a schematic diagram showing the configuration of the crimping unit 32. As shown in FIG. 7, the crimping unit 32 has a pair of binding teeth (upper crimping tooth 32a and lower crimping tooth 32b). The upper crimping tooth 32a and the lower crimping tooth 32b are arranged opposite to each other in the thickness direction of the sheet stack Pb so as to be able to sandwich the sheet stack Pb placed on the internal tray 22. The opposing surfaces of the upper crimping tooth 32a and the lower crimping tooth 32b are formed unevenly with alternating concave and convex portions. The upper crimping tooth 32a and the lower crimping tooth 32b are formed with the concave and convex portions offset from each other so as to mesh with each other. The upper crimping tooth 32a and the lower crimping tooth 32b are brought into contact with and separated from each other by the driving force of a contact / separation motor 32d (see FIG. 8).

[0056] As shown in Fig. 7(A) , when multiple sheets P constituting the sheet bundle Pb are being supplied to the internal tray 22, the upper and lower pressure teeth 32a and 32b are spaced apart. Then, when all sheets P constituting the sheet bundle Pb are placed on the internal tray 22, the upper and lower pressure teeth 32a and 32b mesh with each other, as shown in Fig. 7(B) , and pressurize and deform the sheet bundle Pb in the thickness direction. This causes the sheet bundle Pb placed on the internal tray 22 to be pressure-bound. The pressure-bound sheet bundle Pb is then discharged to the second discharge tray 26 by the conveyance roller pair 15.

[0057] The configuration of the crimping unit 32 is not limited to the structure of the operating mechanism exemplified in this embodiment, as long as the upper crimping teeth 32a and the lower crimping teeth 32b constituting the crimping mechanism are able to mesh with each other. For example, the crimping mechanism may be a link mechanism type crimping mechanism (such as that disclosed in Japanese Patent No. 6057167) that performs the crimping and separating operations of the upper crimping teeth 32a and the lower crimping teeth 32b using a drive source and link mechanism that rotates forward only or forward and reverse, or a linear motion type crimping mechanism that performs the crimping and separating operations of the upper crimping teeth 32a and the lower crimping teeth 32b linearly using a screw mechanism that converts the rotational motion of the drive source in the forward and reverse directions into linear reciprocating motion.

[0058] Furthermore, a crimping frame 32c that holds the components of the crimping unit 32 has a crimping unit rotation shaft 561 equipped with a drive transmission gear 54a fixed to its bottom surface. The crimping unit rotation shaft 561 and the drive transmission gear 54a are held rotatably in forward and reverse directions on a base member 48 on which the crimping frame 32c is provided. The drive transmission gear 54a is in mesh with an output gear 56a of a crimping unit rotation motor 56. The crimping unit 32 is configured to be rotatable in forward and reverse directions on the base member 48 about the crimping unit rotation shaft 561 by transmitting the driving force of the crimping unit rotation motor 56 to the crimping unit rotation shaft 561 via the output gear 56a and the drive transmission gear 54a.

[0059] [Control configuration] Fig. 8 shows an example of a control configuration for controlling the operation of post-processing device 3. As shown in Fig. 8, post-processing device 3 includes a central processing unit (CPU) 101, a random access memory (RAM) 102, a read only memory (ROM) 103, a hard disk drive (HDD) 104, and an interface (I / F) 105, all of which are connected via a common bus 109.

[0060] The CPU 101 is a computing means and controls the overall operation of the post-processing device 3. The RAM 102 is a volatile storage medium that can read and write information at high speed, and is used as a work area when the CPU 101 processes information. The ROM 103 is a read-only non-volatile storage medium that stores programs such as firmware. The HDD 104 is a non-volatile storage medium that can read and write information and has a large storage capacity, and stores an OS (Operating System), various control programs, application programs, etc.

[0061] The post-processing device 3 processes a control program stored in the ROM 103, an information processing program (application program) loaded into the RAM 102 from a storage medium such as the HDD 104, and the like using the arithmetic functions of the CPU 101. This processing constitutes a software control unit including various functional modules of the post-processing device 3. The combination of the software control unit thus constituted and the hardware resources installed in the post-processing device 3 constitutes functional blocks that realize the functions of the post-processing device 3. In other words, the CPU 101, RAM 102, ROM 103, and HDD 104 constitute a control unit 100 that controls the operation of the post-processing device 3.

[0062] The I / F 105 is an interface that connects the contact / separation motor 32d, the pressure-bonding unit rotation motor 56, the liquid application unit movement motor 37, the end-stitching processing unit movement motor 50, the position detection sensor 40a, the first liquid level sensor 43a, the second liquid level sensor 52a, the set detection sensor 532, etc. to the common bus 109.

[0063] Control unit 100 controls the operations of contact / separation motor 32d, pressure bonding unit rotation motor 56, liquid application unit movement motor 37, edge binding processing unit movement motor 50, etc. via I / F 105. Control unit 100b also acquires detection results from position detection sensor 40a, first liquid level sensor 43a, second liquid level sensor 52a, set detection sensor 532, etc. Note that details of components related to edge binding processing unit 25 that performs the edge binding process and components related to saddle stitching processing unit 28 that performs the saddle stitching process are not shown in FIG. 8.

[0064] As shown in FIG. 1, the image forming apparatus 2 includes an operation panel 110 as an input means. The operation panel 110 includes an operation unit that accepts operations from a user and a display (notification unit) that notifies the user of information. The operation unit includes, for example, hard keys, a touch panel superimposed on the display, etc. The operation panel 110 acquires information from the user through the operation unit and provides the information to the user through the display. Note that the notification unit is not limited to a display, and may be an LED lamp, a speaker, etc. The post-processing device 3 may also be provided with an operation panel 110 similar to the above.

[0065] As described above, the post-processing device 3 uses the hardware resources of the control unit 100 as a control means to realize the function of controlling operations related to liquid deposition through software (control program) executed by the CPU 101.

[0066] [Liquid pressure binding operation] Next, an example of the operation of the liquid application unit 31 and the pressure bonding unit 32 that make up the edge binding processing unit 25 as the medium processing means will be described with reference to FIG.

[0067] Next, as shown in Figure 9 (B), the liquid application member 44 moves up and down via the liquid application unit movement motor 37, causing the liquid application member 44, which has absorbed the liquid, to press against the paper P and apply liquid to the paper P.

[0068] Subsequently, as shown in FIG. 9C, the liquid applicator 44 rises to transport the next sheet of paper P to the medium receiving position of the liquid applicator 44.

[0069] The next sheet P to which liquid is to be applied is transported to the medium receiving position, and Figures 9(A) and 9(B) are repeated, and Figures 9(A), 9(B), and 9(C) are repeated until the final sheet P to which liquid is to be applied is reached (Figure 9(D)).

[0070] Next, as shown in Figure 9 (E), the liquid application member 44 and the pressure-bonding unit 32 are moved in the main scanning direction by the end-binding processing unit movement motor 50, and the binding position of the paper stack Pb is moved to the position of the pressure-bonding unit 32, after which the binding operation is performed by the pressure-bonding unit 32 and the paper stack Pb is discharged.

[0071] [First embodiment of liquid application pressure binding process] Next, a first embodiment of a liquid pressure binding process that can be performed in the edge stitching processing unit 25 included in the post-processing device 3 according to this embodiment will be described. The post-processing device 3 according to this embodiment is assumed to have a trained model that has been machine-learned using training data stored in advance in the ROM 103 included in the control unit 100. The trained model stored in ROM 103 uses as training data the correlation between the characteristics of the paper P (medium characteristics), the characteristics of the liquid used for liquid application (liquid characteristics), the amount of liquid applied, and the pressing force, which is the physical pressure applied in the pressing unit 32 when performing pressure binding.

[0072] In other words, the post-processing device 3 of this embodiment uses a machine-learned model in which machine learning is performed using as training data a dataset that associates the measured value of the pressing force (degree of fastening) when the pressure binding process is actually performed and the correct label with a combination of the characteristics of the paper P used in the pressure binding process (size, thickness, etc. of the paper P) and the characteristics of the liquid used for liquid application.

[0073] In this embodiment, "water" is used as an example of the liquid used for liquid application, and therefore "hardness," which is one of the properties of water, is used as the feature amount.

[0074] For example, as illustrated in Fig. 10, the pressure applied by the pressure bonding unit 32 and the amount of liquid applied (amount of water added) are correlated and changed, and a combination of standard values ​​(correct labels) for each liquid characteristic is prepared for each characteristic of the paper P, and a machine learning model (trained model) is generated using these. Note that the solid line in Fig. 10 indicates the median of the standard values ​​(correct labels), and the dotted line indicates the allowable error range.

[0075] The trained model is executed, for example, according to the flow illustrated in the flowchart of Fig. 11. That is, a liquid application pressure binding process is performed on an actual stack of sheets Pb using a specific pressure force for different combinations of types of sheets P and water hardness, and the binding strength (degree of fastening) of the resulting stack of sheets Pb is measured to collect training data (S1101). Training data is collected for each type of sheet P.

[0076] In step S1101, the training data collected is labeled as correct if the binding strength is sufficient, and a target value for the pressure is assigned to the training data. This creates a training data set that includes the type of paper P and the water hardness as feature quantities and the pressure corresponding to each combination as a target value (S1102).

[0077] Using the training data set created in step S1102, machine learning is performed by a machine learning process to generate a trained model (S1103).

[0078] When executing a job including liquid application pressure binding in the post-processing device 3 equipped with the trained model, information about the paper P (type, thickness, etc.) and information indicating the properties of the liquid are input via the operation panel 110 (S1104). In this embodiment, "water" is used as an example of the liquid used for liquid application. Therefore, "hardness," which is one of the properties of water, is input.

[0079] Liquid property data relating the water intake area to the water hardness may be stored in advance in the ROM 103 provided in the control unit 100 as a processing control quantity setting means, and in step 1104, the water intake input from the post-processing device 3 may be input, and the water hardness may be determined by referring to the liquid property data relating the water intake area to the water hardness.

[0080] Based on the information input in step S1104, the amount of liquid to be applied and the pressure are set (S1105). Then, based on the amount of liquid to be applied and the pressure set in step S1105, the liquid application process and the pressure binding process are executed (S1106). Through this series of processes, it is possible to execute the binding process with a pressure appropriate for the water hardness. In addition, because a trained model based on a training data set for each type of paper P is used, it is possible to execute the pressure binding process with a pressure appropriate for the paper P.

[0081] The processes from step S1101 to step S1103 may be executed to generate a trained model using hardware resources different from the post-processing device 3. In this case, the generated trained model may be loaded into the post-processing device 3 before step S1104 is executed.

[0082] Furthermore, so-called reinforcement learning may be performed by acquiring data evaluating the binding strength of the paper-sheet stack Pb generated in step S1105 and including it in the teacher data set created in step S1102. In this case, the data is always updated within the allowable error range indicated by the dotted line in the graph illustrated in FIG.

[0083] The trained model may be stored in a so-called cloud service, and the post-processing device 3 may access the cloud service via a communication network to set the amount of liquid to be applied and the pressing force in step S1105.

[0084] [Second embodiment of liquid application pressure binding process] Next, a second embodiment of the liquid pressure binding process that can be performed in the edge binding processing unit 25 included in the post-processing device 3 according to this embodiment will be described. As illustrated in Fig. 12, the post-processing device 3 according to this embodiment is premised on a thermometer 700 that detects the temperature of the liquid (water) used for liquid application, being installed in the first liquid storage tank 43.

[0085] As in the first embodiment, a trained model that has been machine-learned using training data is pre-stored in the ROM 103 provided in the control unit 100. The trained model stored in the ROM 103 uses as teaching data the correlation between the characteristics of the paper P, the characteristics of the liquid used for liquid application, the amount of liquid applied, and the pressing force in the pressure bonding unit 32 when performing pressure binding. In this embodiment, the liquid used for liquid application is specified including "temperature."

[0086] For example, as illustrated in Fig. 13, the pressure applied by the pressure bonding unit 32 and the temperature of the liquid used for applying the liquid are changed in correlation with each other, and a combination of standard values ​​(correct labels) for each temperature characteristic of the liquid is prepared for each characteristic of the paper P, and a machine learning model (trained model) is generated using these. Note that the solid line in Fig. 13 indicates the median of the standard values ​​(correct labels), and the dotted line indicates the allowable error range.

[0087] The trained model is generated by executing steps S1101 to S1103, which have already been described. That is, the trained model is based on training data obtained by performing a liquid application pressure binding process on an actual sheet bundle Pb using different combinations of types of sheet P and water hardness and temperature, and measuring the binding strength (degree of fastening) of the resulting sheet bundle Pb.

[0088] Then, the temperature detected by the thermometer 700 is included in the input data exemplified in step S1104, and steps S1105 and S1106 are executed.

[0089] This makes it possible to achieve a more stable improvement in binding strength than in the first embodiment.

[0090] [Third embodiment of liquid application pressure binding process] Next, a third embodiment of the liquid pressure binding process that can be performed in the edge binding processing unit 25 included in the post-processing device 3 according to this embodiment will be described.

[0091] When the number of times the liquid application member 44 is used increases, the shape of the tip portion becomes worn out due to deterioration over time, etc., and as a result, the expected binding strength cannot be obtained even if liquid application pressure binding is performed with the amount of liquid application and pressing force estimated using the trained model, as in step S1105 described in the first embodiment. This is because the deterioration of the liquid application member 44 makes it impossible to apply liquid as set.

[0092] Therefore, in this embodiment, when a data model outside the error range is generated as shown in Figure 14, the user is prompted to replace the liquid-applying member 44 via the operation panel 110 as a notification means.

[0093] 15 is a flowchart illustrating the flow of the replacement time notification process for the liquid application member 44. First, in the first and second embodiments already described, when the amount of liquid to be applied (amount of water added) and the binding strength are set using a trained model (S1105), the amount of liquid to be applied and the binding strength are estimated (S1501).

[0094] It is determined (S1502) whether the relationship between the amount of liquid applied and the binding strength estimated in step S1501 deviates from the standard value as illustrated in Fig. 14. If it does not deviate from the standard value (S1502: NO), the process returns to step S1501 and is repeated each time the job is completed.

[0095] In step S1502, if the relationship between the estimated amount of liquid applied and the pressing force deviates from the standard value as illustrated in FIG. 14 (S1502: YES), a notification is output via the operation panel 110 informing the user that it is time to replace the liquid application member 44, and the user is prompted to replace the liquid application member 44 (S1503).

[0096] According to this embodiment, the state of the liquid application member 44, which changes over time, is monitored, and replacement is prompted when the amount of liquid application and binding pressure estimated in the trained model deviate from the standard values, thereby maintaining the quality of binding strength.

[0097] [Fourth embodiment of liquid application pressure binding process] Next, a third embodiment of the liquid pressure binding process that can be performed in the edge binding processing unit 25 included in the post-processing device 3 according to this embodiment will be described.

[0098] When the liquid application member 44 is filled with liquid (water) up to its tip, paper dust caused by friction from the paper P may adhere to the liquid application member 44, particularly at its tip. The degree of paper dust adhesion increases cumulatively depending on the number of times the liquid is applied, so if the amount of paper dust adhesion increases, this may cause the liquid application to the next paper P to not fall within the standard value.

[0099] To prevent this, as shown in Fig. 16, training data including correlation data between the number of times liquid is applied by the liquid application member 44 (number of times water is added) and the pressing time of the liquid application member 44 (contact time with the paper P, which corresponds to the "pressing time for adding water") is prepared for each property of the paper P, and a machine learning model (trained model) is generated using this data. Note that the solid line in Fig. 16 indicates the median of the standard value (correct label), and the dotted line indicates the allowable error range.

[0100] When a job including liquid application pressure binding processing is executed, control is added to change the setting of the pressing time of the liquid application member 44, and if the predetermined binding strength cannot be obtained even with the changed liquid application time, the user is prompted to replace the liquid application member 44. This makes it possible to perform a more optimal liquid application pressure binding processing.

[0101] 17 is a flowchart illustrating the flow of a replacement time notification process based on the results of the binding process resulting from a change in the liquid application time of the liquid application member 44. First, in the first and second embodiments already described, when the amount of liquid applied and the binding strength are set using a trained model (S1105), it is determined whether the binding state is within an acceptable range (S1701).

[0102] If the binding state is within the allowable range in step S1702 (S1701: NO), the process is repeated each time a job is completed.

[0103] In step S1702, if the binding condition is not within the acceptable range (S1701: YES), a notification is output via the operation panel 110 informing the user that it is time to replace the liquid application member 44, and the user is prompted to replace the liquid application member 44 (S1502).

[0104] According to this embodiment, by taking appropriate measures in a timely manner in response to deterioration of the liquid application member 44 that changes over time, it is possible to maintain the quality of binding strength.

[0105] The sheet processing device according to the present embodiment described above uses a trained model for pressure binding, which is obtained in advance by machine learning using predetermined training data, to estimate the appropriate amount of liquid application and binding force from information about the paper P (thickness, type) and the type of liquid used for liquid application (hardness in the case of water).

[0106] The trained model for pressure binding in this embodiment was obtained through a machine learning process using training data that shows the correlation between information about the paper P (thickness, type), the type of liquid used for liquid application (hardness in the case of water), the amount of liquid applied by the liquid application, the pressure applied by the pressure bonding section 32, and the fastening force.

[0107] In other words, with the sheet processing device of this embodiment, the user can set information about the paper P (thickness, type, etc.) and the type of liquid used for liquid application (hardness, etc.), thereby enabling the binding process to be performed using the amount of liquid applied estimated from the learned model and liquid applied using pressure.

[0108] Therefore, according to the sheet processing apparatus of this embodiment, regardless of the type of paper sheets P, the fastening force of the paper sheet bundle Pb formed by pressure binding can be improved. The fastening strength of the sheet bundle Pb refers to the resistance to peeling of the sheets P constituting the sheet bundle Pb from each other.

[0109] The present invention is not limited to the above-described exemplary embodiments, and various modifications are possible without departing from the technical gist thereof. The present invention covers all technical matters included in the technical concept described in the claims. The above-described embodiments are preferred examples, but a person skilled in the art can realize various modifications from the disclosed content. Such modifications are also included in the technical scope described in the claims.

[0110] The control method described above may be realized, for example, by a program. That is, the control method is a method executed by a computer by causing an arithmetic unit, a storage unit, an input unit, an output unit, and a control unit to cooperate with each other based on the program. The program may be written to a storage unit or a storage medium and distributed, or distributed via a telecommunications line, etc.

[0111] For example, aspects of the present invention are as follows. <1> A media processing device that performs a predetermined process on a media stack that includes at least one sheet of media to which a liquid has been applied, a liquid applying means for applying the liquid by a liquid applying member that has been permeated with the liquid; a medium processing means for performing the predetermined processing; an input unit that receives input of medium characteristics that identify the type of the medium and liquid characteristics that identify the liquid used for applying the liquid; a control means for controlling the operation of the liquid applying means and the medium processing means based on the input medium characteristics and liquid characteristics; Equipped with the control means includes a trained model that has been machine-learned using training data that indicates a correlation between medium characteristics that individually identify the types of the plurality of media, liquid characteristics that indicate the identity of the liquid used in the liquid deposition, a liquid deposition amount that is the amount of liquid deposited on the medium by the liquid deposition, and a physical pressure applied to the medium in the predetermined process; an input means for receiving input of the medium characteristics and the liquid characteristics and inputting them into a trained model; and a processing control amount setting means for setting an optimal amount of the liquid to be applied and an optimal strength of the physical pressure using the trained model for the medium characteristics and the liquid characteristics input by the input means. The media processing device is characterized by the above. <2> In the training data used for the trained model, The medium characteristics include at least one of the thickness and type of the medium; the liquid characteristics include at least one of hardness and temperature of the liquid; The processing control amount setting means The amount of liquid to be applied and the strength of the physical pressure are set in response to input of at least one of the thickness or type of the medium and at least one of the hardness or temperature of the liquid using the trained model. The aforementioned <1> 2 is a media processing device according to the first embodiment. <3> The method further includes a notification unit that notifies a user whether the amount of liquid to be applied and the strength of the physical pressure set via the trained model are appropriate, The control means a notification that the liquid application member needs to be replaced when the liquid application amount and the strength of the physical pressure set by the processing control amount setting means exceed a predetermined error range with respect to a predetermined standard value; The aforementioned <1> or the above <2> 2 is a media processing device according to the first embodiment. <4> The method further includes a notification unit that notifies a user whether the amount of liquid to be applied and the strength of the physical pressure set via the trained model are appropriate, the control means determines whether the liquid application amount set by the process control amount setting means is appropriate based on the number of times the liquid is applied; When the amount of liquid applied exceeds a predetermined error range with respect to a predetermined standard value, a notification is given to replace the liquid application member. The aforementioned <1> or the above <2> 2 is a media processing device according to the first embodiment. <5> an image forming device for forming an image on the medium; The method for binding a plurality of the media on which images have been formed by the image forming apparatus <1> a media processing device according to The image forming system is characterized by comprising: [Explanation of symbols]

[0112] 11: Transport roller 12: Discharge roller 15: Staple tray 16: Shift tray 18: Reference fence 31: Tip guide 100: Image forming system 101: Image forming device 102: Post-processing device 103: Folding device 104: Post-processing control unit 105: Post-processing detection unit 106: Post-processing drive unit 107: Folding control section 108: Folding detection unit [Prior art documents] [Patent documents]

[0113] [Patent Document 1] Japanese Patent Application Publication No. 2019-010810

Claims

1. A media processing device that performs a predetermined process on a media stack that includes at least one sheet of media to which a liquid has been applied, a liquid applying means for applying the liquid by a liquid applying member that has been permeated with the liquid; a medium processing means for performing the predetermined processing; an input means for receiving input of at least medium characteristics that identify the type of the medium and liquid characteristics that identify the liquid used for applying the liquid; a control means for controlling the operation of the liquid applying means and the medium processing means based on the input medium characteristics and liquid characteristics; Equipped with the control means includes a trained model that has been machine-learned using training data that indicates a correlation between medium characteristics that individually identify the types of the plurality of media, liquid characteristics that indicate the identity of the liquid used in the liquid deposition, a liquid deposition amount that is the amount of liquid deposited on the medium by the liquid deposition, and a physical pressure applied to the medium in the predetermined process; and a processing control amount setting means for setting an optimal amount of the liquid to be applied and an optimal strength of the physical pressure using the trained model in accordance with the input medium characteristics and liquid characteristics. A media processing device characterized by:

2. In the training data used for the trained model, The medium characteristics include at least one of the thickness and type of the medium; the liquid characteristics include at least one of hardness and temperature of the liquid; The processing control amount setting means The amount of liquid to be applied and the strength of the physical pressure are set in response to input of at least one of the thickness or type of the medium and at least one of the hardness or temperature of the liquid using the trained model. The media processing device of claim 1 .

3. The method further includes a notification unit that notifies a user whether the amount of liquid to be applied and the strength of the physical pressure set via the trained model are appropriate, The control means a notification that the liquid application member needs to be replaced when the liquid application amount and the strength of the physical pressure set by the processing control amount setting means exceed a predetermined error range with respect to a predetermined standard value; The media processing device according to claim 1 or 2.

4. The method further includes a notification unit that notifies a user whether the amount of liquid to be applied and the strength of the physical pressure set via the trained model are appropriate, the control means determines whether the liquid application amount set by the process control amount setting means is appropriate based on the number of times the liquid is applied; When the amount of liquid applied exceeds a predetermined error range with respect to a predetermined standard value, a notification is given to replace the liquid application member. The media processing device according to claim 1 or 2.

5. an image forming device for forming an image on the medium; a media processing device according to claim 1 , which binds a plurality of the media on which images have been formed by the image forming device; An image forming system comprising:

Images