TRANSPORT SYSTEM, TRANSPORT DEVICE, RECORDING SYSTEM, AND METHOD FOR CONTROLLING TRANSPORT DEVICE

Abstract

To provide a conveyance system, a conveyance device, a recording system and a control method of the conveyance device capable of accurately controlling a heating section 19 to provide a medium with necessary bonding force to a conveyance belt.SOLUTION: A conveyance system has a conveyance device 12 and a peeling device 13. The conveyance device 12 has an adhesive layer 32, a conveyance belt 23 conveying a medium 99 stuck to the adhesive layer 32, the heating section 19 capable of heating the adhesive layer 32, a driving section 25 driving the conveyance belt 23, and a control section including a detection section for detecting a load of the driving section 25 and controlling the driving section 25 and the heating section 19. The peeling section 13 peels the medium 99 from the conveyance belt 23. The detection section can detect the load of the driving section 25 when peeling the medium 99 from the conveyance belt 23 by the peeling device 13, and the control section controls the heating section 19 on the basis of the detection result of the detection section.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a transport system, a transport device, a recording system, and a method for controlling the transport device. [Background technology]

[0002] Patent Document 1 discloses a recording device including a conveyor belt having an adhesive layer, a recording unit that records on a medium attached to the adhesive layer, and a heating unit that heats the conveyor belt. It is known that the adhesive layer is heated by the heating unit, thereby improving the adhesiveness of the medium to the adhesive layer. Therefore, it is important to precisely control the heating unit in order to improve the adhesiveness of the medium.

[0003] Patent Document 2 also describes a recording device that includes a conveyor belt having an adhesive layer, a recording unit that records on a medium attached to the adhesive layer, and a detection unit that detects the adhesive strength of the adhesive layer. When the conveyor belt rotates while in contact with the adhesive layer, the detection unit rotates with the conveyor belt. When the adhesive strength of the adhesive layer decreases and the rotation of the detection unit stops, the recording device notifies the user that it is time to replace the adhesive layer. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2007-504970 [Patent Document 2] JP 2006-315824 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the adhesive strength of the adhesive layer decreases due to various reasons such as the adhesion of ink or media fibers attached to the surface of the adhesive layer, or the deterioration of the adhesive layer over time, and does not necessarily depend only on the heating temperature. In other words, even if the heating temperature is properly controlled, the adhesive strength of the adhesive layer changes due to other reasons such as foreign matter attached to the surface or the deterioration of the adhesive layer itself. For this reason, there is a problem that the actual adhesive strength of the adhesive layer may decrease and the media may not be attached properly.

[0006] Furthermore, the detection unit described in Patent Document 2 detects the adhesive strength of the adhesive layer and notifies the user when it is time to replace the adhesive layer, but is unable to control the adhesive strength of the adhesive layer of the transport belt to an appropriate level while the medium transport device is in operation. [Means for solving the problem]

[0007] A conveying system that solves the above problem includes a conveying device having a conveying belt having an adhesive layer and conveying media attached to the adhesive layer, a heating unit capable of heating the adhesive layer, a driving unit driving the conveying belt, and a control unit including a detection unit that detects the load of the driving unit and controls the driving unit and the heating unit, and a peeling device that peels the media from the conveying belt, wherein the detection unit is capable of detecting the load of the driving unit when the media is peeled off from the conveying belt by the peeling device, and the control unit controls the heating unit based on the detection result of the detection unit.

[0008] A conveying device that solves the above problem is a conveying device equipped with a conveying belt that conveys media to be peeled off by a peeling device, and includes a heating unit capable of heating the conveying belt, a driving unit that drives the conveying belt, and a detection unit that detects the load of the driving unit, and a control unit that controls the driving unit and the heating unit, wherein the conveying belt has an adhesive layer and is configured to be capable of conveying the media attached to the adhesive layer, the heating unit is configured to be capable of heating the adhesive layer, the detection unit is configured to be capable of detecting the load of the driving unit when the media is peeled off from the conveying belt by the peeling device, and the control unit controls the heating unit based on the detection result of the detection unit.

[0009] A recording system that solves the above problem includes a recording device having a conveyor belt having an adhesive layer and conveying a media attached to the adhesive layer, a recording unit capable of recording on the media, a heating unit capable of heating the adhesive layer, a first drive unit driving the conveyor belt, and a first control unit controlling the first drive unit and the heating unit, and a peeling device that peels the media from the conveyor belt, the peeling device including a second drive unit that drives the peeling device and a detection unit that detects a load on the second drive unit and a second control unit that controls the second drive unit, the detection unit being capable of detecting the load on the second drive unit when the media is peeled off from the conveyor belt by the peeling device, and the first control unit controlling the heating unit based on the detection result of the detection unit.

[0010] A control method for a conveying device that solves the above problem is a control method for a conveying device having a conveying belt having an adhesive layer and conveying a media attached to the adhesive layer, a heating unit capable of heating the adhesive layer, and a driving unit that drives the conveying belt, and includes detecting the load of the driving unit when the media is peeled off from the conveying belt, and controlling the heating unit based on the detected value of the load. [Brief description of the drawings]

[0011] [Figure 1]FIG. 1 is a block diagram showing a recording system according to a first embodiment. [Diagram 2] FIG. 1 is a side view showing a schematic diagram of a recording system. [Diagram 3] 4 is a graph illustrating load history information. [Figure 4] 5 is a graph illustrating a heating temperature control process. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] 4 is a flowchart showing a heating temperature control process. [Figure 8] FIG. 11 is a block diagram showing a recording system according to a second embodiment. [Figure 9] 4 is a flowchart showing a heating temperature control process. [Figure 10] 10 is a graph illustrating a heating temperature control process in a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of a recording system will be described with reference to the drawings. 1, a recording system 10 includes a recording device 11 and a peeling device 13. The recording system 10 of this embodiment also includes a notification device 14, a holding device 15, a tension adjustment device 16, and a terminal device 40 that can communicate with the recording device 11.

[0013] The notification device 14 of this embodiment has a display unit 17 and an input unit 18. The display unit 17 displays information. The display unit 17 is, for example, a liquid crystal display. The notification device 14 notifies the user by displaying various information on the display unit 17. The notification device 14 may notify the user of the operating status of the transport device 12.

[0014] The input unit 18 is configured to receive instructions. Therefore, when a user operates the recording system 10, the user inputs instructions to the input unit 18. The instructions input to the input unit 18 are input to the recording device 11 via the notification device 14.

[0015] The input unit 18 is, for example, a touch panel. Therefore, in this embodiment, the display unit 17 and the input unit 18 are integrally configured. The input unit 18 may be, for example, a mouse, a keyboard, or the like.

[0016] The recording device 11 is an inkjet printer that records images such as characters and photographs by ejecting ink, which is an example of liquid, onto a medium 99 such as fabric or paper.

[0017] The recording device 11 has a recording unit 22, a conveying device 12, and a control unit 20. The control unit 20, for example, controls the recording device 11 in an overall manner. The control unit 20 is capable of communicating with the peeling device 13, the notification device 14, the holding device 15, the tension adjustment device 16, and a terminal device 40. The control unit 20 may control the peeling device 13, the notification device 14, the holding device 15, the tension adjustment device 16, and the terminal device 40.

[0018] The conveying device 12 includes a conveying belt 23 (see FIG. 2) that conveys the medium 99 to be recorded by the recording unit 22. The conveying belt 23 has an adhesive layer 32 (see FIG. 2) and conveys the medium 99 attached to the adhesive layer 32. The conveying belt 23 of this embodiment is a heat-sensitive glue belt having an adhesive on its surface that becomes adhesive when heated as the adhesive layer 32. The adhesive is also referred to as glue in this specification. The conveying device 12 includes a heating unit 19 that can heat the adhesive layer, and a driving unit 25 that drives the conveying belt 23. The conveying device 12 includes a temperature detection unit 30 that can detect the temperature of the conveying belt 23. The temperature detection unit 30 is, for example, a thermistor or a non-contact temperature sensor.

[0019] The terminal device 40 has a communication unit 41 for communicating with the recording device 11, and a storage unit 42 in which software for editing image data to be transmitted to the recording device 11 is stored. The communication unit 41 can transmit job data and various data related to image data to the recording device 11 via a wired or wireless network. The storage unit 42 has a non-volatile storage medium such as an SSD or HDD, and can store image data and various data. The terminal device 40 is also electrically connected to the notification device 14, and can execute editing of image data and the like via the notification device 14.

[0020] The notification device 14 may be provided in the terminal device 40, or may be independent of the terminal device 40. When the notification device 14 is independent of the terminal device 40, the notification device 14 is able to communicate information with the terminal device 40 using a communication cable or the like.

[0021] The control unit 20 may be configured as a circuit including one or more processors that execute various processes according to a computer program, one or more dedicated hardware circuits such as application specific integrated circuits that execute at least some of the various processes, or a combination thereof. The processor includes a CPU and memory such as RAM and ROM, and the memory stores program code or instructions configured to cause the CPU to execute processes. The memory, i.e., computer-readable medium, includes any readable medium that can be accessed by a general-purpose or special-purpose computer.

[0022] The control unit 20 includes a detection unit 21. The detection unit 21 is, for example, a motor driver. In this case, in the control unit 20, the motor driver and the processor may be arranged on the same chip or on different chips.

[0023] The detection unit 21 can detect the load on the drive unit 25. The detection unit 21 of this embodiment detects the load on the drive unit 25 when the medium 99 is peeled off from the conveyor belt 23 by the peeling device 13. The control unit 20 of this embodiment outputs a current command value to the motor driver to control the current flowing through the drive unit 25, thereby controlling the speed of the conveyor belt 23. Therefore, the motor driver can detect the value of the current flowing through the drive unit 25. Since the drive unit 25 is controlled to be driven at a target speed, when the load when driving the conveyor belt 23 becomes large, the drive current increases. The current of the drive unit 25 changes according to the load on the conveyor belt 23.

[0024] The load that the conveyor belt 23 receives from the media 99 when the media 99 is peeled off from the conveyor belt 23 depends on the adhesive strength of the adhesive layer 32. The greater the adhesive strength of the adhesive layer 32, the greater the load detected by the detection unit 21. The detection unit 21 detects the load of the drive unit 25 as a load current flowing through the drive unit 25. The control unit 20 controls the heating unit 19 based on the detection result of the detection unit 21. That is, the control unit 20 performs a heating temperature control process that controls the heating temperature of the heating unit 19 based on a detection value obtained by detecting the load of the drive unit 25. The heating temperature control process will be described in detail later.

[0025] Next, the configuration of the recording system 10 will be described with reference to Fig. 2. As shown in Fig. 2, the recording device 11 includes a recording unit 22 and a conveying device 12. The conveying device 12 includes a conveying belt 23, a driving roller 24, a driving unit 25, and a driven roller 26. The conveying device 12 of this embodiment includes a heating unit 19, a pressing unit 27, a cleaning unit 28, and a drying unit 29.

[0026] The recording unit 22 ejects liquid onto the medium 99, for example. As a result, the recording unit 22 records on the medium 99. The recording unit 22 is, for example, a head. The recording unit 22 may be a serial head that scans the medium 99, or may be a line head that extends over a range approximately the same as the width of the medium 99.

[0027] Incidentally, the recording unit 22 is not limited to an inkjet type, and may be an electrophotographic type in which a solid toner is applied and then an image is fixed to the medium 99 by various photosensitive means. The recording device 11 has a transport device 12. The transport device 12 includes a transport belt 23, a driving roller 24, and a driven roller 26. The transport belt 23 has a base material 31 and an adhesive layer 32.

[0028] The substrate 31 is provided in an endless shape. The substrate 31 has a first surface 33 and a second surface 34 that is the surface opposite to the first surface 33. The first surface 33 is a surface that becomes the outer circumferential surface of the substrate 31. The second surface 34 is a surface that becomes the inner circumferential surface of the substrate 31.

[0029] The adhesive layer 32 is provided on the first surface 33. The adhesive layer 32 has adhesive properties. The adhesive layer 32 is formed by an adhesive having adhesive properties. The adhesive layer 32 is formed by applying an adhesive onto the first surface 33. The adhesive layer 32 is formed over the entire circumference of the first surface 33. The adhesive strength of the adhesive layer 32 decreases with the use of the recording device 11, the passage of time, and the like. In this embodiment, when the layer on the surface of the adhesive layer 32 to which the media 99 is attached is set as the surface layer, an adhesive having a property that the adhesive strength of the adhesive layer 32 increases as the temperature of the surface layer of the adhesive layer 32 increases is used. Note that an adhesive having a property that the adhesive strength of the adhesive layer 32 decreases as the temperature of the surface layer of the adhesive layer 32 increases may be used.

[0030] The adhesive layer 32 is a layer to which the medium 99 is attached. That is, the conveyor belt 23 conveys the medium 99 attached to the adhesive layer 32. The medium 99 is recorded by the recording unit 22 while being conveyed by the conveyor belt 23. Therefore, the recording unit 22 is positioned so as to face the first surface 33 with respect to the base material 31. The recording unit 22 in this embodiment is positioned above the conveyor device 12.

[0031] The conveyor belt 23 is provided in an endless manner. The conveyor belt 23 in this embodiment is wound around the drive roller 24 and the driven roller 26. As a result, the second surface 34 of the base material 31 comes into contact with the drive roller 24 and the driven roller 26. The conveyor belt 23 conveys the medium 99 by rotating. The conveyor belt 23 rotates around the drive roller 24 and the driven roller 26. In other words, the conveyor belt 23 rotates about the midpoint of an imaginary line connecting the center of rotation of the drive roller 24 to the center of rotation of the driven roller 26.

[0032] The driving roller 24 is configured to be rotatable. The driving roller 24 is connected to a driving unit 25. The driving unit 25 is, for example, a motor. When the driving unit 25 is driven, the driving roller 24 rotates. When the driving roller 24 rotates, the conveying belt 23 rotates. In this manner, the driving unit 25 transmits a driving force to the driving roller 24 to drive the conveying belt 23. The driving unit 25 of this embodiment can rotate the driving roller 24 in both a first direction and a second direction that is the opposite direction to the first direction. That is, the conveying belt 23 can rotate in both directions, that is, in the direction in which the medium 99 is conveyed and in the reverse conveying direction that is the opposite direction to the conveying direction.

[0033] The driving unit 25 has an encoder 35. The encoder 35 is configured to detect the amount of rotation, the rotation speed, etc. of the driving roller 24. The encoder 35 enables the driving roller 24 to rotate with high precision.

[0034] The driven roller 26 is configured to be rotatable. The driven roller 26 rotates in accordance with the rotation of the conveyor belt 23. That is, the driven roller 26 rotates in accordance with the rotation of the drive roller 24.

[0035] The pressing portion 27 is located outside the transport device 12. As a result, the pressing portion 27 is located so as to face the first surface 33 of the base material 31. The pressing portion 27 in this embodiment is located above the transport device 12.

[0036] The pressing unit 27 presses the media 99 against the conveyor belt 23. This causes the media 99 to be attached to the adhesive layer 32. The pressing unit 27 of the present embodiment presses the media 99 downward toward the conveyor belt 23. The pressing unit 27 sequentially attaches the media 99 to the adhesive layer 32 as the conveyor belt 23 rotates.

[0037] The pressing unit 27 is, for example, a non-rotating rod. The pressing unit 27 may be a rotatable roller. The pressing unit 27 effectively attaches the medium 99 to the adhesive layer 32 by, for example, reciprocating a predetermined distance on the circumferential surface of the conveyor belt 23.

[0038] The cleaning unit is located outside the conveyor belt 23. Therefore, the cleaning unit is located so as to face the first surface 33 of the base material 31. The cleaning unit in this embodiment is located below the conveyor belt .

[0039] The cleaning unit 28 cleans the adhesive layer 32 by coming into contact with the adhesive layer 32. The cleaning unit 28 of the present embodiment comes into contact with the conveyor belt 23 from below. The cleaning unit 28 includes, for example, a brush that comes into contact with the adhesive layer 32. The cleaning unit 28 sequentially cleans the adhesive layer 32 as the conveyor belt 23 rotates.

[0040] In the recording device 11, when the recording unit 22 records on the medium 99, liquid may adhere to the adhesive layer 32. The cleaning unit 28 cleans the adhesive layer 32 to remove the liquid adhered to the adhesive layer 32.

[0041] The cleaning unit 28 of this embodiment cleans the adhesive layer 32 using a cleaning liquid. The cleaning unit 28 cleans the adhesive layer 32, for example, by bringing a brush wet with the cleaning liquid into contact with the adhesive layer 32. This effectively removes the liquid adhering to the adhesive layer 32. In this case, when the cleaning unit 28 cleans the adhesive layer 32, the conveyor belt 23 becomes wet with the cleaning liquid. The cleaning liquid is, for example, water.

[0042] The drying section 29 is located outside the conveyor belt 23. Therefore, the drying section 29 is located so as to face the first surface 33 of the base material 31. The drying section 29 in this embodiment is located below the conveyor belt 23.

[0043] The drying section 29 dries the adhesive layer 32 wetted with the cleaning liquid. The drying section 29 dries the adhesive layer 32, for example, by blowing hot air onto the conveyor belt 23. The drying section 29 in this embodiment blows hot air onto the conveyor belt 23 from below. The drying section 29 sequentially dries the adhesive layer 32 wetted with the cleaning liquid as the conveyor belt 23 rotates.

[0044] The heating unit 19 is located outside the conveyor belt 23. Therefore, the heating unit 19 is located so as to face the first surface 33 of the base material 31. The heating unit 19 in this embodiment is located below the conveyor belt 23 or to the side of the driven roller 26. The heating unit 19 is located facing the first surface 33 in a portion upstream of the pressing unit 27 and downstream of the drying unit 29 in the rotation direction of the conveyor belt 23 when recording on the medium 99.

[0045] The heating unit 19 heats the adhesive layer 32. The heating unit 19 has, for example, a heater 19H. The heating unit 19 may have a configuration including an air heater that heats with hot air instead of the heater 19H. In short, the heating unit 19 only needs to be able to heat the medium 99, and the heating method may be any of a radiation type, a conduction type, a hot air type (convection type), and a combination thereof.

[0046] The reason why the heating unit 19 is disposed at the above-mentioned position close to the pressing unit 27 is as follows: By shortening the distance from the pressing unit 27 to the heating position of the heating unit 19 toward the upstream side in the belt rotation direction to a predetermined distance or less, the media 99 can be pressed against the adhesive layer 32 while the adhesive strength of the adhesive layer 32, which has been increased by heating, is still high, thereby ensuring the adhesion force.

[0047] The conveying device 12 also includes a temperature detection unit 30 capable of detecting the temperature of the conveying belt 23. The temperature detection unit 30 may indirectly detect the temperature of the conveying belt 23 by detecting the temperature of the heating unit 19, or may directly detect the temperature of the conveying belt 23 in a non-contact manner. The temperature detection unit 30 may detect the temperature of a metal radiation member such as an aluminum plate that is heated by the heat of the heater 19H constituting the heating unit 19 and radiates the heat to heat the conveying belt 23. In the example shown in FIG. 2, the conveying device 12 also includes a second temperature detection unit 38 that detects the temperature of the conveying belt 23 in a non-contact manner.

[0048] The temperature detection unit 30 is used to control the heating temperature of the heating unit 19. The second temperature detection unit 38 is used to detect abnormal overheating of the conveyor belt 23. The second temperature detection unit 38 may be used to control the heating temperature of the heating unit 19, or a configuration may be provided with one temperature detection unit that is used for both heating control and overheating detection.

[0049] Next, a series of operations of the recording device 11 will be described while focusing on a specific area on the circumferential surface of the conveyor belt 23. First, the pressing unit 27 presses the medium 99 against a specific area on the circumferential surface of the conveyor belt 23. Next, the recording unit 22 records on the medium 99 attached to the specific area. Next, the medium 99 attached to the specific area is peeled off from the conveyor belt 23 by the peeling device 13. Next, the cleaning unit 28 cleans the specific area. Next, the drying unit 29 dries the specific area. Next, the heating unit 19 heats the specific area. The adhesive force of the adhesive layer 32 in the specific area is increased by heating. Next, the pressing unit 27 presses the medium 99 against the specific area again. In this manner, images are sequentially recorded on the media 99 as the conveyor belt 23 rotates.

[0050] Next, the holding device 15, the tension adjusting device 16 and the peeling device 13 will be described. The holding device 15 holds a roll on which the medium 99 is wound. The holding device 15 holds the roll in a rotatable manner. The roll held by the holding device 15 is a first roll R1 on which the medium 99 before recording is wound. In this embodiment, the conveyor belt 23 is driven to unwind the medium 99 from the first roll R1 held by the holding device 15. The unwound medium 99 is conveyed from the holding device 15 towards the recording device 11.

[0051] The tension adjustment device 16 has, for example, a contact member 36 and an elastic member 37. The contact member 36 comes into contact with the medium 99 between the holding device 15 and the recording device 11. The contact member 36 of the present embodiment comes into contact with the surface of the medium 99 that is to be recorded by the recording unit 22. The contact member 36 may be, for example, a cylindrical non-rotating rod or a rotatable roller.

[0052] The elastic member 37 has elasticity. The elastic member 37 is attached to the contact member 36. The elastic member 37 is, for example, a spring. The elastic member 37 expands and contracts depending on the magnitude of tension applied to the medium 99 between the holding device 15 and the recording device 11. That is, when the tension applied to the medium 99 is large, the elastic member 37 contracts. When the tension applied to the medium 99 is small, the elastic member 37 expands. In this way, the tension adjustment device 16 adjusts the tension of the medium 99 between the holding device 15 and the recording device 11 so that it is approximately constant.

[0053] The peeling device 13 holds a roll on which the medium 99 is wound. The peeling device 13 holds the roll in a rotatable manner. The roll held by the peeling device 13 is the second roll R2 on which the medium 99 after passing through the recording device 11 is wound.

[0054] The peeling device 13 may be configured to include a dryer 45 between the conveyor belt 23 and the roll body. The dryer 45 includes a conveying section 46 that conveys the medium 99, and a dryer 47 that dries the medium 99 conveyed by the conveying section 46. The dryers 47 may be disposed, for example, on both sides of the conveying path of the medium 99, and may dry the medium 99 from both sides. The dryer 47 may be either a heater type or a hot air type. The peeling device 13 includes a sensor 48 that can detect the medium 99. When the sensor 48 detects the medium 99, the peeling device 13 is driven a predetermined amount in the direction in which the medium 99 is wound up.

[0055] As a result, in the recording system 10, the peeling device 13 takes up the medium 99 from the recording device 11. In other words, the peeling device 13 collects the medium 99. A driving force is transmitted to the peeling device 13 from a driving source such as a motor (not shown), and the peeling device 13 takes up the medium 99 from the recording device 11 with a predetermined rotational torque.

[0056] The peeling device 13 peels the medium 99 from the conveyor belt 23. The peeling device 13 of this embodiment peels the medium 99 from the conveyor belt 23 by rotating the second roll body R2. Specifically, the peeling device 13 peels the medium 99 at a peeling position P2 on the driving roller 24 of the circumferential surface of the conveyor belt 23. A predetermined tension is applied to the medium 99B, which is a part of the medium 99 from the peeling position P2 to the peeling device 13, so that the medium 99B has almost no slack. Here, the part of the medium 99 that is attached to the adhesive layer 32 upstream of the peeling position P2 in the rotation direction of the conveyor belt 23 is referred to as the medium 99A. At this time, the angle between the medium 99A and the medium 99B in the vicinity of the peeling position P2, that is, the peeling angle θ, is less than 90 degrees. In this embodiment, the peeling angle θ becomes smaller as the adhesive strength of the adhesive layer 32 becomes stronger. That is, the peeling position P2 with respect to the driving roller 24 changes depending on the adhesive strength.

[0057] A tension Te based on the adhesive force acting between the adhesive layer 32 and the medium 99 acts on the medium 99B, which is a part of the medium 99. The tension Te acts from the peeling position P2 toward the peeling device 13. Here, since the peeling angle θ is less than 90 degrees, the component TA of the tension Te along the medium 99A approaches the reverse conveying direction. The component TA along the medium 99A is expressed as T×cosθ. At this time, if there is no slippage between the driving roller 24 and the conveying belt 23, when the medium 99 is peeled off from the conveying belt 23 by the peeling device 13, the torque based on the component TA along the medium 99A acts to resist the rotation torque of the driving roller 24. Therefore, the peeling device 13 peeling off the medium 99 from the conveying belt 23 becomes a resistance for the conveying belt 23 that rotates. In other words, when the peeling device 13 peels off the medium 99 from the conveying belt 23, a load is generated on the driving unit 25. When a load is generated in the driving unit 25, a load current corresponding to the magnitude of the load flows through the driving unit 25.

[0058] The resistance generated in the drive unit 25 by the media 99 being peeled off from the conveyor belt 23 increases as the adhesive strength of the adhesive layer 32 increases. As a result, the greater the adhesive strength of the adhesive layer 32, the greater the load current that flows through the drive unit 25 in order for the conveyor belt 23 to output the target conveying speed. Conversely, when the adhesive strength of the adhesive layer 32 decreases, the load current that flows through the drive unit 25 in order for the conveyor belt 23 to output the target conveying speed decreases. That is, when the adhesive strength of the adhesive layer 32 is large, the load current that flows through the drive unit 25 is larger than when the adhesive strength of the adhesive layer 32 is small. In this way, when the media 99 is peeled off from the conveyor belt 23, a load current according to the magnitude of the adhesive strength flows through the drive unit 25. That is, the load current is a current that is supplied to the drive unit 25 in order for the conveyor belt 23 to output the target conveying speed when the media 99 is peeled off from the adhesive layer 32.

[0059] <Heating temperature control details> Next, the heating temperature control by the control unit 20 will be described with reference to FIG. 3 and FIG. 4. The control unit 20 controls the heating unit 19 based on the detection result of the detection unit 21. The detection unit 21 detects the load of the drive unit 25 when the medium 99 is peeled off from the conveyor belt 23 by the peeling device 13. Therefore, the control unit 20 controls the heating unit 19 based on the load of the drive unit 25 detected by the detection unit 21 when the medium 99 is peeled off from the conveyor belt 23 by the peeling device 13. Specifically, the control unit 20 controls the heating unit 19 based on the load current flowing through the drive unit 25 according to the load received by the conveyor belt 23 from the medium 99 when the medium 99 is peeled off from the conveyor belt 23 by the peeling device 13. Here, the value of the load current increases as the adhesive strength of the adhesive layer 32 increases, and decreases as the adhesive strength of the adhesive layer 32 decreases. In addition, even if the adhesive strength is the same, the adhesion force differs if the media type is different. In order to prevent the media from being misaligned on the conveyor belt 23, an adhesion force equal to or greater than a threshold value is required regardless of the media type. Therefore, the control unit 20 controls the heating unit 19 to a temperature at which the necessary bonding force can be obtained, based on the load current detected by the detection unit 21 .

[0060] The control unit 20 stores reference data indicating the relationship between the detected load (the load current value, which is the value of the load current in this example) and the adhesive strength for each type of media in a storage unit such as a memory. This reference data is created based on measurement data obtained by measuring the relationship between the adhesive strength of the adhesive layer 32 and the load current value in an experiment in which different types of media were used, or based on simulation data obtained by simulating that relationship.

[0061] The control unit 20 estimates the current adhering force based on the load current value, and feedback controls the heating temperature of the heating unit 19 so that the estimated current adhering force approaches the target adhering force. This feedback control may be performed using the value of the adhering force converted from the load current value as a control variable, or may be performed using the load current value detected by the detection unit 21 as the control variable as it is.

[0062] As shown in FIG. 2, the position where the conveyor belt 23 is heated by the heating unit 19 is defined as a heating position P1, and the position where the media 99 is peeled off from the conveyor belt 23 is defined as a peeling position P2. The adhesion force is determined by the adhesive force and the type of media. For this reason, the load current detected by the detection unit 21 is a value according to the adhesive force if the type of media is the same. The load detected at the peeling position P2 where the media 99 is peeled off from the conveyor belt 23 depends on the heating temperature at the heating position P1 a predetermined time before. If the distance along the outer circumferential surface of the conveyor belt 23 from the heating position P1 to the peeling position P2 is defined as D and the moving speed of the conveyor belt 23 is defined as V, the time T1 required for the position on the conveyor belt 23 to move from the heating position P1 to the peeling position P2 is expressed as T1=D / V. The adhesion force detected at the peeling position P2 is the result of heating at the heating temperature before the required time T1. Therefore, the control unit 20 takes into account the deviation of distance D and controls the heating temperature when the position on the conveying belt 23 located at the peeling position P2 next reaches the heating position P1 based on the load value detected at the peeling position P2.

[0063] Furthermore, the adhesion force of the media 99 is not necessarily constant over one revolution of the conveyor belt 23, but decreases at locations where foreign matter such as ink or media fibers adhere to the adhesive layer 32, or where the adhesive layer 32 has deteriorated. For this reason, in this embodiment, the adhesion force (load) for one revolution of the conveyor belt 23 is measured to obtain history information related to the adhesion force for one revolution of the belt. Then, the control unit 20 controls the heating temperature of the heating unit 19 based on the load history information so that the necessary adhesion force can be obtained even in locations where the adhesion force has decreased due to the adhesion of foreign matter or deterioration of the adhesive.

[0064] FIG. 3 shows the load history information LP for one revolution of the belt. In the graph of FIG. 3, the horizontal axis indicates the belt rotation position for one revolution of the belt, and the vertical axis indicates the temperature T and the load L. The belt rotation position is expressed as a position on the conveyor belt 23 that passes through the peeling position P2 while the conveyor belt 23 makes one revolution (one revolution) from the start of the load measurement, with the starting point being a position on the conveyor belt 23 that corresponds to the peeling position P2 when the load measurement is started. The graph of FIG. 3 shows the temperature history information HT and the load history information LP. When the temperature of the conveyor belt 23 reaches the target temperature T0, the control unit 20 starts measuring the load history information LP. The control unit 20 detects the load at the peeling position P2 where the medium 99 is peeled off from the conveyor belt 23 for one revolution of the belt under the target temperature T0, thereby acquiring the load history information LP for one revolution of the belt.

[0065] 3, the load history information LP for one revolution of the belt is history information in which the load fluctuates during one revolution of the belt because there are places where the adhesive strength has decreased due to the adhesion of foreign matter to the adhesive layer 32 or deterioration of the adhesive. When acquiring this initial load history information LP for one revolution of the belt, the control unit 20 controls the heating unit 19 based on the temperature detected by the temperature detection unit 30 so that the conveyor belt 23 reaches the target temperature T0.

[0066] FIG. 4 is a graph for explaining a heating temperature control process for controlling the heating unit 19 based on the load history information LP shown in FIG. 3. In the graph of FIG. 4, the horizontal axis indicates the belt rotation position, and the vertical axis indicates the temperature T and the load L, as in FIG. 3. The control unit 20 controls the heating temperature of the heating unit 19 based on the load history information LP of one revolution of the belt before so as to obtain a target load L0 corresponding to the target adhesion force. The control unit 20 controls the heating temperature of the heating unit 19 based on the load history information LP shown in FIG. 3, with the control temperature CT shown in the graph of FIG. 4 as the target temperature. The control temperature CT is greater than the value of the temperature history information HT. The heating temperature control process by the control unit 20 controls the heating unit 19 so that the adhesion force estimated from the load L detected at the peeling position P2 becomes the target adhesion force estimated from the target load L0. Specifically, the minimum value of the load history information LP in FIG. 3 is controlled to be equal to or greater than the target load L0. During one revolution of the belt in which the heating temperature control process is performed in FIG. 4, the load history information LP for the next revolution of the belt is acquired. In this way, the load history information LP for one revolution of the conveyor belt 23 is acquired every time the conveyor belt 23 makes one revolution. Then, the control unit 20 controls the heating temperature of the heating unit 19 for the next revolution of the belt based on the load history information LP acquired for the previous revolution of the belt. Note that the heating temperature control process for each revolution thereafter may be performed based on the load history information LP for the initial revolution of the belt.

[0067] The above-described control is performed when an adhesive having a property that the adhesive strength of the adhesive layer 32 increases as the temperature of the surface layer of the adhesive layer 32 increases is used. However, the mode of control is not limited to this. For example, when an adhesive having a property that the adhesive strength of the adhesive layer 32 decreases as the temperature of the surface layer of the adhesive layer 32 increases is used, the control temperature CT may be controlled so that the control temperature CT is smaller than the temperature value included in the temperature history information HT. Even in this case, the minimum value of the load history information LP in FIG. 3 is controlled to be equal to or larger than the target load L0.

[0068] A warm-up period (heating preparation period) is set in which the control unit 20 heats the conveyor belt 23 to a target temperature before transitioning to heating temperature control. During the warm-up period, a warm-up operation is performed in which the conveyor belt 23 is rotated while heating the conveyor belt 23 without the medium 99. When the conveyor belt 23 reaches the target temperature in the warm-up operation, the medium 99 is set on the conveyor belt 23, and a recording operation is started in which the recording unit 22 records on the medium 99. After the target temperature T0 is reached, when a peeling operation is started in which the medium 99 is peeled off from the conveyor belt 23, the control unit 20 acquires the load history information LP for one revolution of the belt shown in FIG. 3 while maintaining the target temperature T0, since there is no load history information LP for the first revolution of the belt yet.

[0069] <Display content> As shown in Fig. 5, the display unit 17 displays a setting screen 50. On this setting screen 50, setting data related to the fabric type and glue type, a target adhesive strength value, and a threshold adhesive strength value can be input. The setting screen 50 has an input field 51 for the fabric type and an input field 52 for the glue type. Even if the heating temperature is the same, the adhesion force of the medium 99 to the adhesive layer 32 varies depending on the fabric type and glue type. For this reason, the control unit 20 may recommend a target temperature on the setting screen 50 during warm-up according to the information on the fabric type and glue type.

[0070] In this embodiment, the control unit 20 controls the heating unit 19 so that the adhesion force of the media 99 to the adhesive layer 32 is a constant value. Here, the load on the drive unit 25 includes a drive load for driving the conveyor belt 23, a peeling load when the media 99 is peeled off, and a contact load from contacting objects such as the pressing unit 27 and the cleaning unit 28. In this embodiment, when the moving speed of the conveyor belt is constant, the drive load and the contact load are considered to be approximately constant. Also, the peeling load increases as the adhesion force of the media 99 increases. In other words, the peeling load has a value that corresponds to the adhesion force.

[0071] Therefore, the control unit 20 controls the heating unit 19 so that the load on the driving unit 25 is constant. This allows the control unit 20 to control the heating unit 19 so that the bonding force is constant. 5 has a target value input field 53 and a threshold value input field 54. In this embodiment, the target value is expressed as a relative value (%) when the maximum load current is set to 100. The threshold value is also expressed as a relative value (%) when the maximum load current is set to 100. Here, the maximum load current is the initial value of the load current detected for the adhesive layer 32 when detecting the adhesion force.

[0072] The target value is a target value of the adhesion force desired by the user. If the target value is set larger than necessary, the heating temperature of the heating unit 19 will be higher than necessary, and the power consumption of the heating unit 19 will increase. For this reason, the user can set a relative value of the adhesion force to save power consumption. The threshold value is a value that specifies the time to replace the adhesive layer 32. Since different users use different types of fabric and glue, the necessary adhesion force also differs. Furthermore, even if the adhesive force is the same, the necessary adhesion force differs depending on the type of fabric (media type). Therefore, a threshold value that specifies the time to replace the adhesive layer 32 can be set for each user.

[0073] The adhesive strength of the adhesive layer 32 decreases over time. Therefore, when detecting the adhesive strength, the load current detected first for the adhesive layer 32 is the largest. The load current detected first is called the maximum load current. The minimum adhesive strength at which the adhesive layer 32 should be replaced is preset in the control unit 20. The relative value of the minimum adhesive strength to the maximum adhesive strength calculated from the maximum load current is set as the minimum threshold value. A threshold value can be input in the input field 54 within a range equal to or greater than the minimum threshold value.

[0074] Note that the input fields 53 and 54 of the setting screen 50 may be configured to input a set value of adhesive force instead of a set value of adhesive force. Since the adhesive force is determined according to the adhesive force and the type of fabric (media type), the control unit 20 may calculate the target adhesive force and the adhesive threshold value from the relative values ​​of the adhesive forces input in the input fields 53 and 54 by referring to reference data that indicates the relationship between the adhesive force (load current) and the adhesive force, which is stored in the memory for each type of fabric.

[0075] Furthermore, the setting screen 50 displays an OK button 55 and a cancel button 56. The OK button 55 is a button for confirming the setting values. When the OK button 55 is pressed with text and input values ​​entered in all items, the setting values ​​are confirmed. The cancel button 56 is a button for canceling the setting values. When the cancel button 56 is pressed, the setting screen 50 closes.

[0076] <Operation of the embodiment> Next, the operations of the recording system 10, the recording device 11 and the transport device 12 will be described. An example of the heating temperature control process executed by the control unit 20 will be described below with reference to Figs. 5 to 7. The control unit 20 of this embodiment executes the heating temperature control process to control the heating unit 19 in parallel with recording of an image. The user inputs various setting values ​​on the setting screen 50 displayed on the display unit 17, for example, by operating the touch panel type input unit 18. The user inputs information on the media type and glue type by selecting them from a list on the setting screen 50. The user also inputs a target value and a threshold value on the setting screen 50. The target value can be input via the input unit 18. The threshold value can be input via the input unit 18.

[0077] The heating temperature control process performed by the control unit 20 will be described below. In step S11, the control unit 20 performs a warm-up operation. More specifically, the control unit 20 controls the heating unit 19 in accordance with a predetermined temperature rise profile based on the detection result of the temperature detection unit 30. In this example, the control unit 20 controls the current value of the heater 19H of the heating unit 19. This causes the heater temperature (i.e., the detected temperature) to rise until it reaches a target temperature. The target temperature is a temperature at which an appropriate adhesion force is obtained. This target temperature is determined according to the media type and glue type. The control unit 20 acquires information on the media type and glue type from information input to the setting screen 50.

[0078] In step S12, the control unit 20 determines whether or not the target temperature has been reached. If the target temperature has been reached, the process proceeds to step S13, and if the target temperature has not been reached, the warm-up operation in step S11 continues.

[0079] In step S13, the control unit 20 starts printing. The control unit 20 starts transporting the medium 99 and causes the recording unit 22 to record an image based on the recording data onto the medium 99. At this time, the heater temperature has reached the target temperature, so the medium 99 is attached to the belt with the necessary adhesion force.

[0080] However, the adhesive strength of the glue (adhesive) on the belt surface decreases in places where liquid such as ink ejected by the recording unit 22 is attached, where cloth fibers are attached, where the glue has peeled off, etc. For this reason, the adhesive strength varies depending on the circumferential position in one revolution of the belt. In other words, the adhesion strength varies depending on the circumferential position in one revolution of the belt. In this embodiment, the heater temperature control is performed to reduce this variation in adhesion strength in one revolution of the belt.

[0081] In step S14, the control unit 20 detects the load for one revolution of the belt. The control unit 20 detects the load of the drive unit 25. More specifically, the control unit 20 detects the load current of the drive unit 25 by the detection unit 21. That is, the control unit 20 regards the load current detected by the detection unit 21 as the load of the drive unit 25. The control unit 20 detects the load of the drive unit 25 while the conveyor belt 23 makes one revolution after the peeling operation of peeling the recorded medium 99 from the conveyor belt 23 is started. Whether the peeling operation of the medium 99 has started may be detected from the load of the drive unit 25, or may be determined from an instruction from the input unit 18. For example, when the warm-up operation is finished, the user sets the medium 99 on the belt and starts printing, or sends the medium 99 on the conveyor belt 23 without printing, and wraps the leading end of the medium 99 around the core material. Thereafter, the peeling device 13 starts a winding operation to wind the medium 99 onto the second roll body R2, and thus starts a peeling operation to peel the medium 99 from the conveyor belt 23.

[0082] In step S15, the control unit 20 acquires load history information for one revolution of the belt. Here, the load history information for one revolution of the belt is history information indicating the relationship between the belt rotation position for one past revolution of the belt and the load of the drive unit 25. For example, the load history information shown in FIG. 3 is acquired. This load history information is acquired under a target temperature T0 where the heater temperature is constant. As can be seen from the graph shown in FIG. 3, the load for one revolution of the belt varies depending on the position. The measurement position of the load history information is the peeling position P2 on the conveyor belt 23. The peeling position P2 at the start of detection of the load for creating the load history information is the measurement start position, and the load history information for one revolution of the belt is acquired from this measurement start position.

[0083] In step S16, the control unit 20 calculates the belt adhesive strength. The control unit 20 calculates, for example, an average load value for one revolution of the belt based on the load history information LP. The average load value is calculated by dividing the integrated value of the load for one revolution of the belt by the number of measurement points (detection points). The control unit 20 acquires the belt adhesive strength by converting the average load value into an adhesive strength value with reference to the reference data. Here, the belt adhesive strength is evaluated by the adhesive strength of the medium 99, so the belt adhesive strength here is synonymous with the adhesive strength of the medium 99 to the adhesive layer 32. Note that the reference data showing the relationship between the load and the adhesive strength is stored in the memory for each type of fabric.

[0084] In step S17, the control unit 20 judges whether the belt adhesive strength reaches the target value. If the belt adhesive strength does not reach the target value, the process proceeds to step S18. On the other hand, if the belt adhesive strength reaches the target value, the process proceeds to step S21.

[0085] In step S18, the control unit 20 judges whether the heating unit 19 is at maximum output. If the heating unit 19 is not at maximum output, the process proceeds to step S19, where the output of the heating unit 19 is increased by a predetermined amount from the current output, and then the process proceeds to step S14. If the output is increased by the predetermined amount at a time until the maximum output is reached but the target value is not reached (negative judgments in both steps S17 and S18), the control unit 20 proceeds to step S20.

[0086] In step S20, the control unit 20 notifies the user that it is time to replace the adhesive. In detail, the control unit 20 displays a message MS urging the user to replace the adhesive on the notification screen 57 of the display unit 17 as shown in FIG.

[0087] That is, when the heating unit 19 heats the conveyor belt 23 at the maximum output that it can output (step S18), if the adhesion force based on the load current is below a threshold value, the control unit 20 causes the alarm device 14 to issue information encouraging replacement of the adhesive.

[0088] In step S21, the control unit 20 controls the temperature of the heater based on the load history information for one revolution of the belt. That is, the control unit 20 controls the heating temperature of the heating unit 19 based on the load history information LP for one revolution of the belt shown in Figs.

[0089] In step S22, the control unit 20 acquires load history information for one revolution of the belt this time. That is, the control unit 20 acquires load history information LP for one revolution of the belt shown in Fig. 4 during one revolution of the belt this time. The control unit 20 performs the process of step S21 and the process of step S22 at each belt rotation position in one revolution of the belt this time.

[0090] This heating temperature control by control unit 20 provides an adhesive force that allows media 99 to be attached with a target adhesion force in the area where pressing unit 27 attaches media 99 to adhesive layer 32. As a result, media 99 is attached to adhesive layer 32 with an appropriate adhesion force.

[0091] In step S21, the control unit 20 determines whether printing has ended. If printing has not ended, the process returns to step S21 and repeats the processes of steps S21 and S21. When printing has ended, the control unit 20 ends the heating temperature control process routine.

[0092] As described above in detail, according to this embodiment, the following effects can be obtained. (1) The conveying system includes a conveying device 12 and a peeling device 13. The conveying device 12 has an adhesive layer 32, a conveying belt 23 that conveys a medium 99 attached to the adhesive layer 32, a heating unit 19 that can heat the adhesive layer 32, a driving unit 25 that drives the conveying belt 23, and a control unit 20 that includes a detection unit 21 that detects the load of the driving unit 25 and controls the driving unit 25 and the heating unit 19. The peeling device 13 peels the medium 99 from the conveying belt 23. The detection unit 21 can detect the load of the driving unit 25 when the medium 99 is peeled from the conveying belt 23 by the peeling device 13, and the control unit 20 controls the heating unit 19 based on the detection result of the detection unit 21. With this configuration, it is possible to control the heating unit 19 based on the load of the driving unit 25 when the medium 99 is actually peeled off. If the adhesion force of the medium 99 to the conveying belt 23 changes, the load of the driving unit 25 when the medium 99 is peeled off also changes. Therefore, the adhesive layer 32 can be heated to a temperature at which the necessary adhesion force can be obtained. Note that the load of the driving unit 25 when the medium 99 actually used is peeled off from the adhesive layer 32 is detected, so that the detection accuracy of the adhesion force is high. This allows the heating unit 19 to be precisely controlled so that the necessary adhesion force can be obtained.

[0093] (2) The conveying system includes an alarm device 14 that notifies the operating status of the conveying device 12. When the heating unit 19 heats the conveying belt 23 with the maximum output that it can output, if the adhesive strength based on the load current, which is an example of a load, is equal to or lower than a threshold value, the control unit 20 causes the alarm device 14 to notify information urging the user to replace the adhesive. This allows the user to easily grasp the indication of when to replace the adhesive.

[0094] (3) The transport system includes an input unit for inputting instructions. The threshold value can be input via the input unit 18. Therefore, an optimal threshold value can be set according to the user. (4) The conveyance system includes a temperature detection unit 30 capable of detecting the temperature of the conveyor belt 23. Therefore, even during a heating preparation period (warm-up period) before the load on the drive unit 25 is detected when the medium 99 is peeled off the conveyor belt 23, the heating unit 19 can be appropriately controlled based on the detection result of the temperature detection unit 30.

[0095] (5) The conveying device 12 includes a conveying belt 23 that conveys the medium 99 to be peeled off by the peeling device 13. The conveying device 12 includes a heating unit 19 capable of heating the conveying belt 23, a driving unit 25 that drives the conveying belt 23, and a control unit 20 that includes a detection unit 21 that detects the load of the driving unit 25 and controls the driving unit 25 and the heating unit 19. The conveying belt 23 has an adhesive layer 32 and is configured to be able to convey the medium 99 attached to the adhesive layer 32. The heating unit 19 is configured to be able to heat the adhesive layer 32. The detection unit 21 is configured to be able to detect the load of the driving unit 25 when the medium 99 is peeled off from the conveying belt 23 by the peeling device 13. The control unit 20 controls the heating unit 19 based on the detection result of the detection unit 21. Thus, the adhesive layer 32 can be heated to a temperature at which the necessary bonding force is obtained.

[0096] (6) The recording system 10 includes a recording device 11 and a peeling device 13. The recording device 11 includes an adhesive layer 32 and a conveyor belt 23 that conveys a medium 99 attached to the adhesive layer 32. The recording device 11 includes a recording unit 22 capable of recording on the medium 99, a heating unit 19 capable of heating the adhesive layer 32, a driving unit 25 that drives the conveyor belt 23, and a control unit 20 that includes a detection unit 21 that detects the load of the driving unit 25 and controls the driving unit 25 and the heating unit 19. The peeling device 13 peels the medium 99 from the conveyor belt 23. The detection unit 21 is capable of detecting the load current flowing through the driving unit 25 when the medium 99 is peeled from the conveyor belt 23 by the peeling device 13. The control unit 20 is characterized by controlling the heating unit 19 based on the detection result of the detection unit 21. According to this configuration, the adhesive layer 32 can be heated to a temperature at which the necessary adhesion force is obtained. Therefore, the medium 99 can be attached to the transport belt 23 with an appropriate adhesion force, improving recording accuracy.

[0097] (7) A method for controlling a conveying device 12 having a conveyor belt 23 that conveys a medium 99 having an adhesive layer 32 and attached to the adhesive layer 32, a heating unit 19 capable of heating the adhesive layer 32, and a driving unit 25 that drives the conveyor belt 23. This control method includes detecting the load of the driving unit 25 when the medium 99 is peeled off from the conveyor belt 23 (step S14), and controlling the heating unit 19 based on the value of the detected load (step S21). According to this method, the adhesive layer 32 can be heated to a temperature at which the necessary attachment force is obtained.

[0098] Second embodiment Next, a second embodiment will be described with reference to Fig. 8 and Fig. 9. The configuration of the recording system 10 is basically the same as that of the first embodiment. The difference from the first embodiment is that the control unit of the peeling device 13 is configured to detect the load of the drive unit of the peeling device 13.

[0099] 8, the transport device 12 includes a control unit 20 and a driving unit 25 similar to those in the first embodiment, and the control unit 20 includes a detection unit 21. In this second embodiment, in order to distinguish these from the components of the peeling device 13, they are conveniently referred to as a first control unit 20, a first driving unit 25, and a first detection unit 21.

[0100] As shown in FIG. 8, the peeling device 13 includes a second control unit 60 and a second driving unit 65. The second control unit 60 includes a second detection unit 61. The second driving unit is a driving source of the peeling device 13, and the second driving unit 65 is driven to perform a winding operation in which the media 99 is wound around the roll body. The second control unit 60 controls the driving of the second driving unit 65 to control the winding operation of the roll body. The second detection unit 61 detects the load of the second driving unit 65. The second detection unit 61 is, for example, a motor driver. The second detection unit 61 is realized by a load current detection function of the motor driver. The second detection unit 61 detects the load of the second driving unit 65 as a load current. Other components constituting the recording system 10 are similar to those of the first embodiment.

[0101] The first control unit 20 can communicate with the second control unit 60 via the terminal device 40. The terminal device 40 receives information on the load current of the first drive unit 25 detected by the first detection unit 21 from the first control unit 20, and receives information on the load current of the second drive unit 65 detected by the second detection unit 61 from the second control unit 60. This embodiment is different from the first embodiment in that the first control unit 20 controls the heating temperature based on the load current of the first drive unit 25 detected by the first detection unit 21 and the load current of the second drive unit 65 received from the second control unit 60. Note that the first control unit 20 may be able to communicate directly with the second control unit 60 without going through the terminal device 40. In this case, the first control unit 20 receives information on the load current of the second drive unit 65 detected by the second detection unit 61 from the second control unit 60.

[0102] The heating temperature control process performed by the first control unit 20 will be described below with reference to Fig. 9. In the following, when there is no need to distinguish between the first control unit 20 and the second control unit 60, the first control unit 20 will also be simply referred to as the control unit 20.

[0103] The control unit 20 performs the same processes as in the first embodiment for steps S11 to S13. That is, a warm-up operation is performed in step S11, and when the target temperature is reached (positive determination in step S12), printing starts (step S13). When printing starts, the medium 99 is set on the conveyor belt 23. The medium 99 is then conveyed by the conveyor belt 23, and the medium 99 after recording is peeled off from the conveyor belt 23 by the peeling device 13. Thereafter, the control unit 20 performs the processes from step S31.

[0104] In step S31, the control unit 20 detects a first load, which is a load on the drive unit 25 of the conveyor belt . In step S32, the control unit 20 detects a second load, which is a load of the second driving unit 65, which is a driving unit of the peeling device 13. The control unit 20 receives, from the second control unit 60, second load information detected by the second control unit 60.

[0105] In step S33, the control unit 20 calculates a third load, which is a load of adhesive force, based on the first load and the second load. More specifically, the control unit 20 calculates a peeling load from the media 99 to be peeled off, which is obtained by removing other load components caused by contact with the cleaning unit 28 and the like from the loads that the conveyor belt 23 receives when the media 99 is peeled off, based on the detection results of the first detection unit 21 and the detection results of the second detection unit 61. Here, the load that the second driving unit 65 receives from the media 99 when the peeling device 13 peels the media 99 off the conveyor belt 23 is mainly the load that the second driving unit 65 receives from the media 99 when peeling off. On the other hand, when the conveyor device 12 includes the cleaning unit 28, the first load includes the load that the driving unit 25 receives from the media 99 and the load that the cleaning unit 28 receives from the brush or blade. For this reason, the control unit 20 obtains the third load by, for example, having the terminal device 40 calculate the difference between the first load and the second load. In detail, the terminal device 40 acquires information on the first load from the transport device 12 and acquires information on the second load from the peeling device 13. Then, the terminal device 40 calculates a third load based on these pieces of information and transmits the information on the third load to the first control unit 20 provided in the transport device 12. Note that, if the first control unit 20 can communicate directly with the second control unit 60 without going through the terminal device 40, the control unit 20 may acquire the third load by calculating the difference between the first load and the second load.

[0106] In step S34, the control unit 20 acquires third load history information, which is history information of the third load for one revolution of the belt. Here, the third load history information for one revolution of the belt is history information indicating the relationship between the belt rotation position for one past revolution of the belt and the third load.

[0107] In step S35, the control unit 20 calculates the belt adhesive force. For example, the control unit 20 calculates the third load average value for one revolution of the belt based on the third load history information LP. The third load average value is calculated by dividing the integrated value of the third load for one revolution of the belt by the number of measurement points (detection points). The control unit 20 acquires the belt adhesive force by converting the third load average value into an adhesive force value with reference to the reference data. Note that the reference data showing the relationship between the third load and adhesive force is stored in the memory for each type of fabric.

[0108] In step S36, the control unit 20 determines whether the belt adhesive strength reaches the target value. If the belt adhesive strength does not reach the target value, the process proceeds to step S37. On the other hand, if the belt adhesive strength reaches the target value, the process proceeds to step S40.

[0109] In step S37, the control unit 20 determines whether the heating unit 19 is at maximum output. If the heating unit 19 is not at maximum output, the process proceeds to step S38, where the output of the heating unit 19 is increased by a predetermined amount from the current output, and then the process proceeds to step S31. If the output is increased by the predetermined amount at a time until the maximum output is reached but the target value is not reached (negative determinations in both steps S36 and S37), the control unit 20 proceeds to step S39.

[0110] In step S39, the control unit 20 notifies the user that it is time to replace the adhesive. In detail, the control unit 20 displays a message MS urging the user to replace the adhesive on the notification screen 57 of the display unit 17 as shown in FIG.

[0111] In step S40, the control unit 20 controls the temperature of the heater based on the third load history information for one revolution of the belt. That is, the control unit 20 controls the heating temperature of the heating unit 19 based on the load history information LP for one revolution of the belt shown in Figs. 3 and 4. However, the load history information LP used in this embodiment is the third load history information that is the history information of the third load. That is, the load caused by the contact object that contacts the conveyor belt 23, such as the brush or blade of the cleaning unit 28, is offset. Therefore, the control unit 20 controls the temperature of the heater 19H based on the peeling load that the conveyor belt 23 receives from the media 99 peeled off from the conveyor belt 23.

[0112] In step S41, the control unit 20 acquires the third load history information for one revolution of the belt this time. That is, the control unit 20 acquires the load history information LP for one revolution of the belt shown in Fig. 4 during one revolution of the belt this time. The control unit 20 performs the process of step S40 and the process of step S41 at each belt rotation position in one revolution of the belt this time.

[0113] This heating temperature control by control unit 20 provides a target adhesion force in the area where pressing unit 27 attaches media 99 to adhesive layer 32. As a result, media 99 is attached to adhesive layer 32 with an appropriate adhesion force.

[0114] In step S42, the control unit 20 determines whether printing has ended. If printing has not ended, the process returns to step S40, and the processes of steps S40 and S41 are repeatedly executed. Then, when printing has ended, the control unit 20 ends the heating temperature control process routine.

[0115] As described above in detail, according to the second embodiment, the following effects can be obtained. (8) The conveying system includes a conveying device 12 and a peeling device 13 similar to those in the first embodiment. The peeling device 13 includes a second detection unit 61 that detects the load of the peeling device 13 when the medium 99 is peeled off from the conveying belt 23, and includes a second control unit 60 that controls the peeling device 13. The second control unit 60 sends information on the detection result of the second detection unit 61 to the control unit 20. The control unit 20 determines the peeling load from the peeled medium 99 among the loads that the conveying belt 23 receives when the medium 99 is peeled off, based on the detection result of the detection unit 21 and the detection result of the second detection unit 61. Then, the control unit 20 controls the heating unit 19 based on the peeling load. According to this configuration, the heating unit 19 is controlled based on the peeling load in which the influence of the load of the contact object in contact with the conveying belt 23 is suppressed. Therefore, the heating unit 19 can be controlled so as to obtain a more appropriate bonding force. The contact object may be a cleaning unit (e.g., a cleaning brush or a cleaning blade) that cleans the conveying belt 23.

[0116] Third embodiment Next, a third embodiment will be described. The configuration of the recording system 10 is basically the same as that of the second embodiment. As in the second embodiment, the second detection unit 61, which is an example of a detection unit included in the second control unit 60 of the peeling device 13, is configured to detect the load of the second driving unit 65 of the peeling device 13. The control unit 20 differs from the above-mentioned embodiments in that the detection result of the detection unit 21 is not used in the heating temperature control process. For this reason, the detection unit 21 may be eliminated in the configuration shown in FIG. 8. In this third embodiment, the control unit 20 performs the heating temperature control process based on the detection result of the second detection unit 61 that detects the load of the second driving unit 65.

[0117] The heating temperature control process will be described below with reference to Fig. 9. The control unit 20 does not include the processes of steps S31 and S33 in the program of the heating temperature control process shown in Fig. 9. Also, in the processes of steps S34, S40, and S41, each process is performed using the second load history information, which is the history information of the second load for one revolution of the belt, instead of the third load history information. The other processes are the processes of Fig. 9.

[0118] After printing starts (step S13), first, in step S32, the control unit 20 detects the second load, which is the load of the second drive unit 65 of the peeling device 13. The control unit 20 receives, from the second control unit 60, second load information detected by the second control unit 60.

[0119] In the next step S34, the control unit 20 acquires second load history information, which is history information of the second load for one revolution of the belt. Here, the second load history information for one revolution of the belt is history information indicating the relationship between the belt rotation position and the second load for one past revolution of the belt.

[0120] In step S35, the control unit 20 calculates the belt adhesive force. For example, the control unit 20 calculates the second load average value for one revolution of the belt based on the second load history information LP. The control unit 20 acquires the belt adhesive force by converting the second load average value into an adhesive force value with reference to the reference data. The reference data showing the relationship between the second load and the adhesive force is stored in the memory for each type of fabric.

[0121] In step S36, the control unit 20 determines whether the belt adhesive strength reaches the target value. If the belt adhesive strength does not reach the target value, the process proceeds to step S37. On the other hand, if the belt adhesive strength reaches the target value, the process proceeds to step S40.

[0122] In step S37, the control unit 20 determines whether the heating unit 19 is at maximum output. If the heating unit 19 is not at maximum output, the process proceeds to step S38, where the output of the heating unit 19 is increased by a predetermined amount from the current output, and then the process proceeds to step S31. If the output is increased by the predetermined amount at a time until the maximum output is reached but the target value is not reached (negative determinations in both steps S36 and S37), the control unit 20 proceeds to step S39.

[0123] In step S39, the control unit 20 notifies the user of information that it is time to replace the adhesive. In detail, the control unit 20 displays a message MS on the display unit 17, as shown in FIG.

[0124] In step S40, the control unit 20 controls the temperature of the heater based on the second load history information for one revolution of the belt. That is, the control unit 20 controls the heating temperature of the heating unit 19 based on the load history information LP for one revolution of the belt shown in Figs. 3 and 4. However, the load history information LP used in this embodiment is the second load history information. That is, the heating unit 19 is controlled using history information of the second load that does not include the load due to a contact object that contacts the conveyor belt 23, such as the brush or blade of the cleaning unit 28. Therefore, the control unit 20 can control the temperature of the heater 19H based on the peeling load that the conveyor belt 23 receives from the medium 99 being peeled.

[0125] In step S41, the control unit 20 acquires the second load history information for one revolution of the belt this time. That is, the control unit 20 acquires the load history information LP for one revolution of the belt shown in Fig. 4 during one revolution of the belt this time. The control unit 20 performs the process of step S40 and the process of step S41 at each belt rotation position in one revolution of the belt this time.

[0126] This heating temperature control by control unit 20 provides a target adhesion force in the area where pressing unit 27 attaches media 99 to adhesive layer 32. As a result, media 99 is attached to adhesive layer 32 with an appropriate adhesion force.

[0127] In step S42, the control unit 20 determines whether printing has ended. If printing has not ended, the process returns to step S40, and the processes of steps S40 and S41 are repeatedly executed. Then, when printing has ended, the control unit 20 ends the heating temperature control process routine.

[0128] As described above in detail, according to the third embodiment, the following effects can be obtained. (9) The recording system 10 includes a recording device 11 and a peeling device 13. The recording device 11 includes a conveyor belt 23 that has an adhesive layer 32 and conveys a medium 99 attached to the adhesive layer 32, a recording unit 22 capable of recording on the medium 99, a heating unit 19 capable of heating the adhesive layer 32, a first driving unit 25 that drives the conveyor belt 23, and a first control unit 20 that controls the first driving unit 25 and the heating unit 19. The peeling device 13 peels the medium 99 from the conveyor belt 23. The peeling device 13 includes a second driving unit 65 that drives the peeling device 13, and a second control unit 60 that includes a second detection unit 61 that detects the load of the second driving unit 65 and controls the second driving unit 65. The second detection unit 61 is capable of detecting a load current that flows through the second driving unit 65 when the medium 99 is peeled off from the conveyor belt 23 by the peeling device 13. The first control unit 20 controls the heating unit 19 based on the detection result of the second detection unit 61. According to this configuration, the heating unit 19 is controlled based on the load of the second driving unit 65 detected by the second detection unit 61 included in the second control unit 60 of the peeling device 13. The load of the second driving unit 65 does not include the load of the contact object in contact with the conveyor belt 23. Therefore, the heating unit 19 can be controlled so as to obtain a more appropriate bonding force. Note that an example of the contact object is the cleaning unit 28 that cleans the conveyor belt.

[0129] The above embodiment can be modified to the following modified examples. Furthermore, the above embodiment and the following modified examples can be appropriately combined to form further modified examples, or the following modified examples can be appropriately combined to form further modified examples.

[0130] In the heating temperature control process shown in FIG. 4, the control unit 20 performs heating temperature control at a control temperature CT that can make the minimum value of the load history information LP a value equal to or greater than the target load L0 for each control period equal to the time required for the conveyor belt 23 to make one rotation (one revolution), but the present invention is not limited to this. For example, the control unit 20 may perform heating temperature control at a control temperature CT as shown in FIG. 10. Here, the control period Δt is the time tb required for one revolution of the belt divided by a natural number N of 2 or more (tb / N). The control unit 20 performs heating temperature control at a control temperature CT obtained by performing a feedback calculation to bring the detected load closer to the target load L0 for each control period Δt. That is, the control unit 20 performs feedback control to bring the detected load, which is obtained from the belt rotation position corresponding to the belt portion on the conveyor belt 23 that has reached the heating position P1, closer to the target load L0, so that the belt portion is heated at a target temperature corresponding to the position. In this manner, since the control unit 20 is configured to control the heating of the heater 19H using the load detected when the medium 99 is peeled at the peeling position P2, the feedback control is performed with a delay of the time required for a specific belt rotation position on the conveyor belt 23 to move from the peeling position P2 to the heating position P1. The target load L0 is a value greater than the minimum load required to obtain the peel strength required when the medium 99 is peeled. Therefore, even if the load value fluctuates somewhat as a result of the feedback control, a value equal to or greater than the minimum load required can be obtained. The control period Δt may be the same as or different from the load measurement period. The control unit 20 may also perform feedback control to bring the attachment force estimated from the detected load closer to the target attachment force, instead of the detected load.

[0131] The control of the heating unit 19 based on the detection result of the detection unit 21 may be performed by the terminal device 40 instead of the control unit 20. Specifically, the control unit 20 may transmit load current information to the terminal device 40, and the terminal device 40 may transmit a control signal for the heating unit 19. That is, the transport system includes the terminal device 40, and when a control unit included in the terminal device 40 receives load current information detected by the detection unit 21 from the control unit 20 of the transport device 12, it transmits a control signal to the heating unit 19 based on the received load current information. The drive circuit of the heating unit 19 controls the current value passed through the heater 19H based on the control signal.

[0132] The transport device 12 may include a peeling unit, and the control unit 20 of the transport device 12 may control the rotation speed of the second roll body R2 held in the peeling unit. The peeling device 13 or the peeling section does not have to be configured to wind up the medium 99. In other words, there are no particular limitations as long as the peeling device 13 or the peeling section is configured to pull the medium 99 while applying a predetermined tension to the medium 99 discharged from the conveying device 12. In this case, the medium 99 may be collected in a state where it is alternately folded into multiple layers, rather than being bundled into a roll.

[0133] The terminal device 40 may control the peeling device 13. Also, the terminal device 40 may control both the conveying device 12 and the peeling device 13. The control unit 20 may control the drive unit 25 by voltage control instead of current control.

[0134] The detection unit 21 is not limited to a function for detecting the current value of a motor driver. For example, the detection unit 21 may detect the load on the conveyor belt 23 based on the speed change amount of the drive unit 25. The speed change amount of the drive unit 25 when the medium 99 is peeled off from the conveyor belt 23 depends on the load on the conveyor belt 23 when the medium 99 is peeled off. The control unit 20 obtains the speed change amount (difference) of the drive unit 25 based on the detection signal of the encoder 35. The control unit 20 may control the heating unit 19 using the speed change amount of the drive unit 25 as a detection result of the load of the drive unit 25. Alternatively, the control unit 20 may detect the load on the conveyor belt 23 based on the value of the output torque of the drive unit 25 or the value of the input voltage of the drive unit 25.

[0135] The heating unit may be controlled based on the detection result by using a belt contact type detection unit that rotates in contact with the conveyor belt described in Patent Document 2. For example, when the rotation of the belt contact type detection unit stops, the control unit 20 may control the heating unit 19 to increase the heating temperature. Also, the number of rotations of the belt contact type detection unit may be configured to be detectable, and the control unit 20 may control the heating unit 19 at a temperature at which the required adhesion force is obtained based on the detection result (detected number of rotations) of this detection unit. With this configuration, not only is it possible to notify the time to replace the adhesive, but it is also possible to heat the adhesive layer 32 at a temperature at which the required adhesion force is obtained even while the conveyor belt is in use.

[0136] The control unit 20 may control the heating unit 19 based on the load (e.g., load current) detected by the detection unit 21 so that the adhesive layer 32 has the required adhesive strength for each type of media (e.g., fabric type).

[0137] The heating temperature control may be feedforward control. Without using the load history information, the adhesion force may be calculated based on the load value or average load value detected by the detection unit 21 when the conveyor belt 23 is rotated a predetermined amount less than one rotation, and the heating unit 19 may be controlled at a temperature at which the calculated adhesion force becomes the target adhesion force.

[0138] The adhesive layer may not be made of an adhesive agent, but may be made of a material having adhesive properties on the surface of the conveyor belt. In other words, the adhesive layer may be applied to the conveyor belt 23 or may be a part of the conveyor belt 23 itself, as long as the adhesive layer is a surface layer whose adhesive strength increases when heated.

[0139] The media 99 may be a roll of paper. The media 99 may also be a sheet or film made of plastic, metal, laminate, or ceramic. The technical ideas and effects obtained from the above-described embodiment and modified examples will be described below.

[0140] (A) A conveying system includes a conveying device having a conveying belt having an adhesive layer and conveying a media affixed to the adhesive layer, a heating unit capable of heating the adhesive layer, a driving unit driving the conveying belt, and a control unit including a detection unit that detects the load of the driving unit and controls the driving unit and the heating unit, and a peeling device that peels the media from the conveying belt, wherein the detection unit is capable of detecting the load of the driving unit when the peeling device peels the media from the conveying belt, and the control unit controls the heating unit based on the detection result of the detection unit.

[0141] According to the above configuration, it is possible to control the heating unit based on the load of the drive unit when the media is actually peeled off. When the adhesion force of the media to the conveyor belt changes, the load of the drive unit when the media is peeled off also changes. Therefore, the adhesive layer can be heated to a temperature at which the required adhesion force is obtained. Since the load of the drive unit when the media is actually peeled off from the adhesive layer is detected, the detection accuracy of the adhesion force is high. This allows the heating unit to be precisely controlled so that the adhesive layer can obtain the required adhesion force.

[0142] (B) In the above-mentioned conveying system, an alarm device is provided which notifies the operating status of the conveying device, and the control unit may cause the alarm device to notify information encouraging replacement of the adhesive if the adhesive strength based on the load is below a threshold value when the heating unit heats the conveying belt at the maximum output it can output.

[0143] According to the above configuration, the user can easily grasp the indication of when to replace the adhesive. (C) The above-mentioned conveyance system may further include an input unit for inputting an instruction, and the threshold value may be inputted via the input unit.

[0144] According to the above configuration, an optimal threshold value can be set depending on the user. (D) The conveying system may further include a temperature detector capable of detecting a temperature of the conveying belt.

[0145] With this configuration, even during the heating preparation period before the load on the drive unit is detected when the medium is peeled off the transport belt, the heating unit can be appropriately controlled based on the detection result from the temperature detection unit.

[0146] (E) In the above conveying system, the peeling device includes a second detection unit that detects the load of the peeling device when the media is peeled off from the conveying belt, and a second control unit that sends information on the detection result of the second detection unit to the control unit and controls the peeling device, and the control unit may calculate a peeling load from the media being peeled off, among the loads that the conveying belt receives when the media is peeled off, based on the detection result of the detection unit and the detection result of the second detection unit, and control the heating unit based on the peeling load.

[0147] According to the above configuration, the heating unit is controlled based on the peel load in which the influence of the load of the contact object in contact with the conveyor belt is suppressed. Therefore, the heating unit can be controlled so as to obtain a more appropriate bonding force. The contact object may be a cleaning unit that cleans the conveyor belt.

[0148] (F) A conveying device is a conveying device having a conveying belt that conveys media to be peeled off by a peeling device, and includes a heating unit capable of heating the conveying belt, a driving unit that drives the conveying belt, and a detection unit that detects the load of the driving unit, and a control unit that controls the driving unit and the heating unit, wherein the conveying belt has an adhesive layer and is configured to be capable of conveying the media attached to the adhesive layer, the heating unit is configured to be capable of heating the adhesive layer, and the detection unit is configured to be capable of detecting the load of the driving unit when the media is peeled off from the conveying belt by the peeling device, and the control unit controls the heating unit based on the detection result of the detection unit.

[0149] According to the above-mentioned configuration, the adhesive layer can be heated to a temperature at which the necessary adhesion strength can be obtained. (G) A recording system includes a conveyor belt having an adhesive layer and conveying a media attached to the adhesive layer, a recording device having a recording unit capable of recording on the media, a heating unit capable of heating the adhesive layer, a first drive unit driving the conveyor belt, and a first control unit controlling the first drive unit and the heating unit, and a peeling device peeling the media from the conveyor belt, the peeling device including a second drive unit driving the peeling device and a detection unit detecting a load on the second drive unit and a second control unit controlling the second drive unit, the detection unit being capable of detecting the load on the second drive unit when the media is peeled off from the conveyor belt by the peeling device, and the first control unit controlling the heating unit based on a detection result of the detection unit.

[0150] According to the above configuration, the heating unit is controlled based on the load of the second driving unit detected by the detection unit included in the second control unit of the peeling device. The load of the second driving unit does not include the load of the contact object in contact with the conveyor belt. Therefore, the heating unit can be controlled so as to obtain a more appropriate bonding force. Note that an example of the contact object is a cleaning unit that cleans the conveyor belt.

[0151] (H) A method for controlling a conveying device includes a conveying belt having an adhesive layer and conveying a media attached to the adhesive layer, a heating unit capable of heating the adhesive layer, and a driving unit that drives the conveying belt, the method including detecting a load on the driving unit when the media is peeled off from the conveying belt, and controlling the heating unit based on the detected value of the load.

[0152] According to the above method, the adhesive layer can be heated to a temperature at which the required adhesion strength can be obtained. [Explanation of symbols]

[0153] 10...recording system, 11...recording device, 12...conveying device, 13...peeling device, 14...alarm device, 15...holding device, 16...tension adjusting device, 17...display unit, 18...input unit, 19...heating unit, 19H...heater, 20...control unit (first control unit), 21...detection unit (first detection unit), 22...recording unit, 23...conveying belt, 24...driving roller, 25...driving unit (first driving unit), 26...follower roller, 27...pressing unit, 28...cleaning unit, 29...drying unit, 30...temperature detection unit, 31...substrate, 32...adhesive layer, 33...first surface, 34...second surface, 35...encoder, 36...contact member, 37...elastic unit material, 38...temperature sensor, 40...terminal device, 41...communication unit, 42...memory unit, 45...drying device, 46...conveying unit, 47...dryer, 48...sensor, 50...change screen, 51...first checkbox, 52...second checkbox, 53...third checkbox, 54...OK button, 55...cancel button, 60...second control unit, 61...second detection unit as an example of a detection unit, 65...second drive unit, 99...media, 99A...media, 99B...media, R1...first roll body, R2...second roll body, P1...heating position, P2...peel position, T...temperature, L...load, L0...target load.

Claims

1. a conveyor belt having an adhesive layer and conveying a medium attached to the adhesive layer; A heating unit capable of heating the adhesive layer; A drive unit that drives the conveyor belt; A control unit including a detection unit that detects a load of the drive unit and controls the drive unit and the heating unit; A conveying device having a peeling device that peels the medium from the conveyor belt; Equipped with the detection unit is capable of detecting the load on the drive unit when the medium is peeled off from the conveyor belt by the peeling device, The control unit controls the heating unit based on a detection result of the detection unit.

2. An alarm device that notifies an operating status of the conveying device, The conveying system described in claim 1, characterized in that when the heating unit heats the conveying belt at the maximum output it can output, if the adhesive strength based on the load is below a threshold value, the control unit causes the alarm device to issue information encouraging the replacement of the adhesive.

3. An input unit for inputting an instruction, The transport system according to claim 2 , wherein the threshold value can be inputted through the input unit.

4. 4. The conveying system according to claim 1, further comprising a temperature detector capable of detecting a temperature of the conveying belt.

5. The peeling device includes: a second detection unit that detects a load on the peeling device when the medium is peeled off from the conveyor belt, and a second control unit that sends information on a detection result of the second detection unit to the control unit and controls the peeling device, The control unit calculates a peeling load received from the media being peeled off, among the loads received by the conveying belt when the media is peeled off, based on the detection results of the detection unit and the second detection unit, and controls the heating unit based on the peeling load.

6. A conveying device including a conveying belt that conveys a medium to be peeled off by a peeling device, A heating unit capable of heating the conveyor belt; A drive unit that drives the conveyor belt; a control unit including a detection unit that detects a load of the drive unit and controls the drive unit and the heating unit; the conveyor belt has an adhesive layer and is configured to be capable of conveying the medium attached to the adhesive layer; The heating unit is configured to be able to heat the adhesive layer, the detection unit is configured to detect the load on the drive unit when the medium is peeled off from the conveyor belt by the peeling device, The control unit controls the heating unit based on a detection result of the detection unit.

7. a conveyor belt having an adhesive layer and conveying a medium attached to the adhesive layer; a recording unit capable of recording on the medium; A heating unit capable of heating the adhesive layer; A first drive unit that drives the conveyor belt; a recording apparatus having a first control unit that controls the first driving unit and the heating unit; a peeling device that peels the medium from the conveyor belt, the peeling device includes a second drive unit that drives the peeling device, and a second control unit that includes a detection unit that detects a load of the second drive unit and controls the second drive unit, the detection unit is capable of detecting a load on the second drive unit when the medium is peeled off from the conveyor belt by the peeling device, The recording system, wherein the first control unit controls the heating unit based on a detection result of the detection unit.

8. A method for controlling a conveying device having a conveying belt that has an adhesive layer and conveys a medium attached to the adhesive layer, a heating unit that can heat the adhesive layer, and a driving unit that drives the conveying belt, detecting a load on the drive unit when the medium is peeled off from the conveyor belt; Controlling the heating unit based on the detected load value; A method for controlling a conveying device, comprising:

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