JP2016147380A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording device that can appropriately feed a medium toward a winding portion.SOLUTION: The recording device comprises; a roller pair 16 that feeds a transfer sheet of paper 100; a recording portion that performs recording on the transfer sheet of paper 100; and a winding portion 13 that is provided at a further downstream side in a feeding direction of the transfer sheet of paper 100 than the roller pair 16 and winds up the transfer sheet of paper 100. The device performs alternately and repeatedly feeding operation through which the roller pair 16 feeds the transfer sheet of paper 100 in a state where the winding portion 13 stops winding-up of the transfer sheet of paper 100 and winding operation through which the winding portion winds up the transfer sheet of paper 100 in a state where the roller pair 16 stops feeding of the transfer sheet of paper 100.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a recording apparatus having a winding unit for winding a medium.

  2. Description of the Related Art Conventionally, there is known a recording apparatus that includes a transport roller that feeds media, and a take-up spool that is provided on the downstream side of the transport roller relative to the transport rollers and winds up the media (see Patent Document 1).

JP 2012-046307 A

The inventor has found the following problems.
In a conventional recording apparatus, in order to send the medium toward the winding unit, a method of operating the feeding unit and the winding unit in synchronization, and a method of operating the feeding unit while the winding unit is stopped You could think so. However, in the former method, when the recording apparatus cannot recognize the roll radius of the medium wound around the winding unit, the winding unit may wind up the medium more than necessary. In this case, not only is the medium wasted, but there is a risk that the medium will be excessively pulled toward the take-up portion and damaged. Even in the latter method, since the medium is not tensioned between the feeding part and the winding part, when the medium is stuck to a member on the feeding path due to static electricity, the medium is piled up at the sticking point. (Hereinafter, a portion where the medium is bent in a mountain shape is referred to as a “mountain portion”), and the medium cannot be sent first from the pasted portion. If the feeding unit tries to feed the medium further in this state, the generated mountain-shaped portion grows, and the medium may be squeezed into a narrow range and the medium may be wrinkled.

  An object of the present invention is to provide a recording apparatus capable of appropriately feeding a medium toward a winding unit.

  The recording apparatus of the present invention includes a feeding unit that feeds a medium, a recording unit that performs recording on the medium, and a winding unit that is provided on the downstream side of feeding of the medium from the feeding unit and winds up the medium. A feeding operation in which the feeding unit stops feeding the medium while the winding unit stops winding the medium, and a winding operation in which the winding unit winds up the medium while the feeding unit stops feeding the medium. It is characterized by being repeated alternately.

  According to this configuration, since the feeding operation and the winding operation are alternately repeated, even when a mountain-shaped portion is generated in the medium by the feeding operation, the winding operation is performed before the mountain-shaped portion grows greatly. The mountain-shaped part is removed. Therefore, it is suppressed that the generated mountain-shaped part grows and the medium becomes messy. Therefore, the recording apparatus can appropriately send the medium toward the winding unit.

  In this case, it is preferable that the feeding unit has a roller pair that feeds the medium by rotating, and the roller pair sandwiches the medium when the winding operation is performed.

  According to this configuration, even when the take-up unit tries to take up the medium more than necessary in the take-up operation, since the medium is sandwiched between the roller pairs, the take-up unit takes up the medium more than necessary. It is suppressed.

  In this case, the feeding unit further includes a feeding drive unit that rotates the roller pair, and the winding unit includes a winding side support unit that rotatably supports the winding core around which the medium is wound, and the winding core. And a control unit that controls the feed drive unit and the take-up drive unit, and the control unit stops the take-up drive unit so that the feed operation is performed. It is preferable to alternately and repeatedly perform a feed process for operating the feed drive unit in a state and a winding process for operating the take-up drive unit while the feed drive unit is stopped so that a winding operation is performed.

  According to this configuration, the control unit repeatedly performs the feeding process and the winding process alternately, so that the winding driving unit is stopped and the feeding driving unit is operated, and the winding driving unit in which the feeding driving unit is stopped. The state in which is operated is repeated alternately. Thereby, a feed operation in which the roller pair rotates and the medium is fed while the winding core stops rotating, and a winding operation in which the winding core rotates and the medium is wound while the rotor pair stops rotating. Is repeated.

  In this case, the control unit controls the winding drive unit so that the rotation direction of the winding core is switched between a winding direction for winding the medium and a reverse rotation direction opposite to the winding direction. After performing the feeding process and the winding process alternately, and then performing the medium slack process and the medium slack process for operating the winding drive unit so that the winding core rotates in the reverse rotation direction, It is preferable to perform parameter setting processing for setting a control parameter for controlling the winding drive unit by operating the winding drive unit in a state where the medium is slackened between the roller pair and the winding unit. .

  According to this configuration, after the control unit alternately performs the feeding process and the winding process, the control unit performs the medium loosening process, so that the medium is loosened between the roller pair and the winding unit. Is made. The control unit sets the control parameter by performing parameter setting processing in this state. Until the control parameter is set, as described above, the feeding operation and the winding operation are alternately repeated, so that the medium is appropriately fed toward the winding unit. After the control parameters are set, the control unit controls the take-up drive unit using the control parameters, so that the take-up unit is operated even when the take-up drive unit is operated in synchronization with the feed drive unit. It is possible to suppress winding up the medium more than necessary.

  In this case, an operation unit that accepts an operation for selecting one of the repeat mode and the non-repeat mode is further provided, and the control unit performs a feed process when the operation unit accepts a repeat mode selection operation. And the winding process are alternately repeated, and when the operation unit accepts a non-repeating mode selection operation, before the medium is loosened between the roller pair and the winding unit, It is preferable that the winding process is performed once or the feeding process is performed once and the winding process is not performed.

  According to this configuration, when the non-repeating mode is selected, instead of alternately repeating the feeding operation and the winding operation, the feeding operation and the winding operation are performed once or the feeding operation is 1 The winding operation is not performed. Therefore, when the non-repetitive mode is selected, the entire processing time is shortened compared to when the repeat mode is selected. Therefore, the user may select the non-repetitive mode when a medium that is not likely to stick to a member on the feed path due to static electricity or the like is used.

  In this case, the image forming apparatus further includes a platen provided opposite to the recording unit, and an adsorption unit that adsorbs the medium to the outer surface of the platen, and the control unit adsorbs when the operation unit accepts an operation for selecting a repetition mode. It is preferable to stop the part.

  According to this configuration, when the repetition mode is selected, the feeding operation and the winding operation are alternately repeated while the suction unit is stopped. This suppresses the medium from sticking to the outer surface of the platen during the feeding operation, and suppresses the occurrence of mountain-shaped portions on the medium in the platen.

1 is a schematic configuration diagram of a recording apparatus according to an embodiment of the present invention. FIG. 2 is a control block diagram of the recording apparatus illustrated in FIG. 1. 3 is a flowchart showing initialization control executed by the recording apparatus shown in FIG. 1. (A) is a figure for demonstrating the feeding operation which the recording device shown in FIG. 1 performs, (b) is a figure for demonstrating the winding operation | movement which the recording device shown in FIG. 1 performs.

  Hereinafter, a recording apparatus 1 according to an embodiment of the present invention will be described with reference to the accompanying drawings. The recording apparatus 1 forms an image by applying sublimation ink to the transfer paper 100 by an inkjet method. The transfer paper 100 on which the image is formed is subjected to a thermal transfer device and heated while being superimposed on a dyeing target such as a fabric, whereby the image formed on the transfer paper 100 is transferred to the dyeing target. The

  A schematic configuration of the recording apparatus 1 will be described with reference to FIG. The recording apparatus 1 includes a medium feeding mechanism 2, a platen 3, a recording unit 5, a drying unit 6, and a support frame 7 that supports them. Although not shown in FIG. 1, the recording apparatus 1 includes a suction fan 4, an operation unit 8, and a control unit 9 (see FIG. 2).

  The medium feeding mechanism 2 feeds the transfer paper 100, which is a continuous paper, in a roll-to-roll manner. The medium feeding mechanism 2 includes a feeding unit 11, a feeding unit 12, and a winding unit 13.

  In the feeding unit 11, a feeding-side roll body 101 on which the transfer paper 100 is wound in a roll shape is set. The feeding portion 11 includes a feeding side support portion 14 and a feeding motor 15 (see FIG. 2). The feeding side support part 14 supports the feeding side roll body 101 rotatably. The feeding motor 15 serves as a driving source for rotating the feeding-side roll body 101. When the feeding motor 15 is operated, the feeding-side roll body 101 rotates in the feeding direction, and the transfer paper 100 is fed from the feeding-side roll body 101.

The feeding unit 12 feeds the transfer paper 100 fed from the feeding-side roll body 101 toward the winding unit 13. The feed unit 12 includes a roller pair 16 and a feed motor 17 (see FIG. 2). The number of roller pairs 16 is not particularly limited, and a plurality of roller pairs 16 may be provided along the feeding path of the transfer paper 100. The roller pair 16 includes a driving roller 18 and a driven roller 19. The drive roller 18 rotates when power is transmitted from the feed motor 17. The driven roller 19 rotates following the drive roller 18. The transfer paper 100 is sandwiched between the driving roller 18 and the driven roller 19. The feed motor 17 serves as a drive source for rotating the drive roller 18. When the feed motor 17 is operated, the driving roller 18 rotates, and the driven roller 19 pressed against the driving roller 18 follows the driving roller 18 and rotates. Thereby, the transfer sheet 100 sandwiched between the driving roller 18 and the driven roller 19 is sent out toward the winding unit 13.
The drive roller 18 is provided with a feed side detection unit 21 (see FIG. 2) having a rotary encoder. Based on the pulse output from the feed side detection unit 21, the rotation angle θ ₁ of the drive roller 18 is detected.

The winding unit 13 winds the transferred transfer paper 100 in a roll shape. The winding unit 13 includes a winding side support unit 22 and a winding motor 23 (see FIG. 2). The winding side support portion 22 rotatably supports the winding paper tube 24. The leading end of the transfer paper 100 is attached to the paper tube 24. The paper tube 24 rotates when power is transmitted from the winding motor 23 through the gear train. The winding motor 23 serves as a driving source for rotating the paper tube 24. When the winding motor 23 rotates to one side, the paper tube 24 rotates in the winding direction, and the transfer paper 100 is wound around the paper tube 24. A roll body formed by winding the transfer paper 100 around the paper tube 24 is referred to as a winding-side roll body 102. When the winding motor 23 rotates to the other side, the paper tube 24 rotates in the reverse rotation direction opposite to the winding direction, and the transfer paper 100 wound around the paper tube 24 is unwound.
The winding motor 23 is provided with a winding side detection unit 25 (see FIG. 2) having a rotary encoder. Based on the pulse output from the winding side detection unit 25, the rotation angle θ ₀ of the winding motor 23 is detected.

  The platen 3 is provided on the downstream side of the transfer paper 100 with respect to the roller pair 16. The platen 3 supports the transfer paper 100 that passes through the upper surface. A plurality of suction holes 26 are provided on the upper surface of the platen 3.

  The suction fan 4 is connected to the suction hole 26. When the suction fan 4 is operated, negative pressure acts on the suction hole 26, and the transfer paper 100 is adsorbed on the upper surface of the platen 3. As a result, the transfer paper 100 is suppressed from floating from the upper surface of the platen 3, and the transfer paper 100 is prevented from interfering with a recording head 27 (described later) of the recording unit 5.

  The recording unit 5 is provided to face the upper surface of the platen 3. The recording unit 5 includes a carriage 28 and a recording head 27 mounted on the carriage 28. The recording head 27 ejects sublimation ink onto the transfer paper 100 adsorbed on the upper surface of the platen 3. The carriage 28 on which the recording head 27 is mounted is configured to be able to reciprocate in a direction that intersects the feeding direction of the transfer paper 100.

  The drying unit 6 is provided on the downstream side of the transfer unit 100 with respect to the recording unit 5. The drying unit 6 includes an aluminum plate 31 that is a medium support unit, and a tube heater 32 provided on the back surface of the aluminum plate 31. When the tube heater 32 generates heat, drying of the transfer paper 100 is promoted when the transfer paper 100 to which the sublimation ink is applied passes through the surface of the aluminum plate 31. The medium support portion may be a member made of another material instead of the aluminum plate 31. Further, the member that heats the medium support portion is not limited to the tube heater 32, and any member that raises the temperature of the medium support portion may be used.

The support frame 7 has a bar member 33. The bar member 33 forms a feeding path for the transfer paper 100 between the drying unit 6 and the winding unit 13.
Although it is conceivable to provide a tension bar that generates tension on the transfer paper 100 instead of the bar member 33, it is difficult to wind the transfer paper 100 tightly. On the other hand, as the winding side roll body 102, in order to prevent meandering or the like of the transfer paper 100 fed out from the winding side roll body 102 when the winding side roll body 102 is set in a thermal transfer device in a subsequent process. The transfer paper 100 is preferably wound tightly. Therefore, as will be described later, the recording apparatus 1 is configured to take up the transfer paper 100 with a certain tension by controlling the torque with respect to the take-up motor 23.

  In the recording apparatus 1 configured as described above, when the intermittent feeding of the transfer paper 100 by the medium feeding mechanism 2 is stopped, the operation of discharging the sublimation ink from the recording head 27 while the carriage 28 is moving, and the medium feeding mechanism 2 are performed. The operation of intermittently feeding the transfer paper 100 is repeated alternately. As a result, an image to be transferred to the transfer object is formed on the transfer paper 100.

  The control system of the recording apparatus 1 will be described with reference to FIG. The operation unit 8 receives various operations from the user. The operation unit 8 includes a display for displaying options and operation keys for selecting and determining the displayed options. Note that the operation unit 8 may have another configuration such as a touch panel. The operation unit 8 receives an operation for selecting a repeat mode and a non-repeat mode. The repeat mode, which will be described in detail later, is a mode in which the feeding operation and the winding operation are alternately repeated in the initialization control, and the non-repetitive mode is the feeding operation and the winding operation in the initialization control. Is a mode that is performed once. The repetitive mode is selected when the transfer paper 100 is likely to stick to a member on the feed path due to static electricity or the like, such as thin paper, and the non-repetitive mode is selected otherwise.

  The control unit 9 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like (not shown). The CPU of the control unit 9 loads a program from the ROM, executes it using the RAM, and controls each unit of the recording apparatus 1. Further, a host device (for example, a personal computer) (not shown) is connected to the control unit 9 so that communication is possible. The control unit 9 acquires image data representing a print image from a host device or the like. The control unit 9 controls the ejection operation of the recording head 27 based on the image data.

  The controller 9 controls the winding motor 23 based on the set torque T to generate a certain tension on the transfer paper 100. This set torque T is calculated corresponding to a change in the roll radius R of the winding side roll body 102, as will be described later.

  The control unit 9 performs parameter setting processing (see step S12 in FIG. 3) for calculating the set torque T in the initialization control executed at the start of operation. A series of flow of initialization control will be described later, but here, parameter setting processing will be described.

As will be described later, the control unit 9 creates a state in which the transfer paper 100 is slack between the roller pair 16 and the winding unit 13 before the parameter setting process. When the parameter setting process is started, the control unit 9 rotates the winding motor 23 while the transfer paper 100 is slack. Thereby, the control unit 9 acquires the offset torque T ₀ of the winding motor 23. The offset torque T ₀ is acquired based on a current value necessary for rotating the winding motor 23 at the time of static load.
Since the winding unit 13 is arranged at a lower position than the roller pair 16, if the transfer paper 100 is loosened between the roller pair 16 and the winding unit 13, the transfer paper 100 is a member on the feeding path. If it is not attached to, the slack is generated on the winding part 13 side.

Subsequently, the control unit 9 rotates the feed motor 17 and the take-up motor 23 in a state where tension is applied to the transfer paper 100 between the roller pair 16 and the take-up unit 13. The control unit 9 sets the set feed amount L, which is the feed amount of the transfer paper 100 sent at this time, to the rotation angle θ ₁ of the drive roller 18 detected by the feed side detection unit 21 and the known drive roller. Based on the relationship with the 18 roller radius r, it is calculated from the relationship of the following equation.
L = r · θ ₁
Then, the control unit 9, the roll radius R of the take-up side roll member 102, and a setting time of feed amount L, and the rotation angle theta ₂ of the winding motor 23 which is detected by the take-up detecting unit 25, is known Based on the reduction ratio N of the gear train between the take-up motor 23 and the paper tube 24, the following equation is used.
R = (L / θ ₂ ) · N
The reduction ratio N is a value given by N = θ ₂ / θ ₀ when the rotation angle of the paper tube 24 is θ ₀ .

  Subsequently, the control unit 9 sets the setting tension F. For example, the control unit 9 stores a table in which the type of the transfer sheet 100 and the tension value are associated with each other, and sets the set tension F by referring to the table.

Based on the offset torque T ₀ , the roll radius R, and the set tension F acquired in this way, the control unit 9 calculates the set torque T of the winding motor 23 from the relationship of the following equation.
T = (F · R−T ₀ ) / N

  In this way, the control unit 9 controls the winding motor 23 based on the set torque T set according to the roll radius R of the winding side roll body 102. As a result, even when the control unit 9 performs recording with the recording unit 5, for example, when the winding motor 23 is operated in synchronization with the feed motor 17, the winding unit 13 makes the transfer paper 100 more than necessary. It is possible to suppress winding or insufficient winding amount.

However, as described above, when the control unit 9 acquires the offset torque T ₀ , it is necessary to rotate the winding motor 23 with the transfer paper 100 between the roller pair 16 and the winding unit 13 slackened. There is. In order to make the transfer sheet 100 slack, the transfer unit 12 and the winding unit 13 are operated in synchronization, and then the transfer sheet 100 wound around the winding unit 13 is unwound. A method and a method of operating the feeding unit 12 while the winding unit 13 is stopped are conceivable. However, in the former method, at the start of operation, the recording apparatus 1 cannot recognize the roll radius R of the transfer paper 100 taken up by the take-up unit 13, so that the take-up unit 13 unnecessarily transfers the transfer paper 100. There is a risk of winding. In this case, not only is the transfer paper 100 wasted, but there is a risk that the transfer paper 100 will be excessively pulled toward the winding unit 13 and damaged. Even in the latter method, since the transfer paper 100 is not tensioned between the feeding unit 12 and the winding unit 13, the transfer paper 100 is stuck to a member on the feeding path by static electricity or the suction force of the suction fan 4. If it is attached, the transfer paper 100 is bent in a mountain shape at the place where it is attached (hereinafter, the portion where the transfer paper 100 is bent in a mountain shape is referred to as a “mountain portion 103”, see FIG. 4). The transfer sheet 100 cannot be sent first from the spot. If the feeding unit 12 tries to further feed the transfer paper 100 in this state, the generated mountain-shaped portion 103 may grow, and the transfer paper 100 may be squeezed into a narrow range and the transfer paper 100 may be wrinkled. Further, the grown mountain-shaped portion 103 may come into contact with a member constituting the recording apparatus 1 and may be damaged or soiled.

  Therefore, as described below, the control unit 9 repeatedly performs the feeding process and the winding process in the initialization control, so that the transfer sheet 100 between the roller pair 16 and the winding unit 13 is loosened. I try to make a state.

  Based on the flowchart shown in FIG. 3, a series of flow of initialization control performed by the control unit 9 will be described with reference to FIG. When the initialization control is started, the control unit 9 determines whether or not the operation unit 8 has received a repeat mode selection operation in step S1. If the control unit 9 determines that the operation unit 8 has received a repeat mode selection operation (S1; Yes), the control unit 9 proceeds to step S2. In step S2, the control unit 9 stops the suction fan 4. In step S3, the control unit 9 initializes the variable n to n = 1.

  In step S <b> 4, the control unit 9 performs a feed process for operating the feed motor 17 in a state where the winding motor 23 is stopped. With this feeding process, a feeding operation in which the feeding unit 12 feeds the transfer paper 100 is performed in a state where the winding unit 13 stops winding the transfer paper 100. Here, the control unit 9 controls the feed motor 17 so as to feed the transfer paper 100 by 1 / k (k is a predetermined integer equal to or larger than 2) of the length D of the transfer paper 100 necessary for making slack. To do. At this time, when the transfer sheet 100 is stuck to a member on the feed path due to static electricity, a mountain-shaped portion 103 is formed on the transfer sheet 100 (see FIG. 4A).

  The value of k is not particularly limited as long as it is an integer equal to or greater than 2. However, when the value of k is large, the amount of feed caused by a single feeding operation is reduced, so that a mountain-shaped portion is generated. The size of 103 can be further reduced, and it is possible to more effectively suppress the mountain-shaped portion 103 from interfering with the recording head 27 and the like. On the other hand, when the value of k is small, the number of repetitions of the feeding operation and the winding operation is reduced, so that the time required for feeding the transfer sheet 100 by the length D can be shortened.

In step S <b> 5, the control unit 9 performs a winding process for operating the winding motor 23 with the feed motor 17 stopped. With this winding process, the winding unit 13 winds the transfer paper 100 in a state where the feeding unit 12 stops feeding the transfer paper 100, that is, in a state where the transfer paper 100 is sandwiched by the roller pair 16. Is done. Here, the control unit 9 controls the winding motor 23 so that the transfer sheet 100 is wound by the feed amount of the transfer sheet 100 in step S3, that is, the length D. Further, the control unit 9 controls the winding motor 23 based on the initial torque T ₁ obtained in advance. If the roll radius R of the winding side roll body 102 is within a predetermined range, the initial torque T ₁ is the transfer paper sandwiched between the roller pair 16 regardless of the roll radius R of the winding side roll body 102. The torque is such that the transfer paper 100 can be taken up without pulling out 100. Due to this winding operation, even if the ridge portion 103 is generated in the transfer paper 100 in the previous feeding operation, the ridge portion 103 is removed (see FIG. 4B).

  In step S6, the controller 9 determines whether n = k. When the control unit 9 determines that n = k (S6; Yes), the process proceeds to step S11. On the other hand, when the control unit 9 determines that n = k is not satisfied (S6; No), the process proceeds to step S7. move on. In step S7, the controller 9 adds 1 to n and returns to step S4. In this way, the control unit 9 repeats steps S4 to S7 until n = k. Thereby, the state where the winding motor 23 is stopped and the feed motor 17 is operated and the state where the feed motor 17 is stopped and the winding motor 23 is operated are alternately repeated k times. Therefore, the feeding operation for feeding the transfer paper 100 by (D / k) by the feeding unit 12 and the winding operation for winding the transfer paper 100 by (D / k) by the winding unit 13 are alternately repeated k times. Is called. As a result, the transfer sheet 100 having a length D is wound around the winding unit 13.

  When the control unit 9 determines in step S1 that the operation unit 8 has received a non-repetitive mode selection operation (S1; No), the control unit 9 proceeds to step S8. In step S8, the controller 9 operates the suction fan 4.

  In step S <b> 9, the control unit 9 performs a feed process for operating the feed motor 17 in a state where the winding motor 23 is stopped. With this feeding process, a feeding operation in which the feeding unit 12 feeds the transfer paper 100 is performed in a state where the winding unit 13 stops winding the transfer paper 100. Here, the control unit 9 controls the feed motor 17 so as to feed the transfer paper 100 by the length D. When a medium that is not likely to stick to a member on the feed path due to static electricity or the like is used as the transfer paper 100, the mountain-shaped portion 103 is unlikely to occur on the transfer paper 100. Therefore, the non-repetitive mode can be selected, and the transfer paper 100 can be in a slack state between the roller pair 16 and the winding unit 13 without the transfer paper 100 being attached to a member on the feed path. .

In step S <b> 10, the control unit 9 performs a winding process for operating the winding motor 23 with the feed motor 17 stopped. With this winding process, a winding operation in which the winding unit 13 winds the transfer paper 100 is performed in a state where the feeding unit 12 stops feeding the transfer paper 100. Here, the control unit 9 controls the winding motor 23 so that the transfer sheet 100 is wound by the feed amount of the transfer sheet 100 in step S9, that is, the length D. The control unit 9, similarly to step S5, based on the initial torque T ₁ obtained in advance, and controls the winding motor 23. After performing Step S10, the control unit 9 proceeds to Step S11.

  In step S <b> 11, the control unit 9 performs a medium slack process that operates the winding motor 23 so that the paper tube 24 rotates in the reverse rotation direction. By this medium slack process, a state in which the transfer paper 100 is slack between the roller pair 16 and the winding unit 13 is created.

In step S12, the controller 9 performs the parameter setting process described above. That is, the control unit 9 acquires the offset torque T ₀ of the take-up motor 23 by operating the take-up motor 23 in a state where the transfer paper 100 is loose between the roller pair 16 and the take-up unit 13. The set torque T is set based on the offset torque T ₀ . Then, the control part 9 complete | finishes a series of processes in initialization control.

  As described above, according to the recording apparatus 1 of the present embodiment, the feeding operation and the winding operation are alternately repeated. Therefore, even when the crest portion 103 is generated on the transfer paper 100 by the feeding operation, the crest portion 103 is generated. Before the large portion 103 grows greatly, the mountain-shaped portion 103 is removed by a winding operation. In other words, by repeating the feeding operation and the winding operation, the transfer paper 100 is fed toward the winding unit 13 as if performing the measuring operation. Therefore, it is possible to prevent the generated mountain-shaped portion 103 from growing and the transfer paper 100 from being pushed into a narrow range and causing the transfer paper 100 to be wrinkled. Further, it is possible to reduce the possibility that the grown mountain-shaped portion 103 comes into contact with a member constituting the recording apparatus 1 and is damaged or soiled. Therefore, the recording apparatus 1 can appropriately feed the transfer paper 100 toward the winding unit 13.

  According to the recording apparatus 1 of the present embodiment, in the winding operation, even when the winding unit 13 tries to wind the transfer paper 100 more than necessary, the transfer paper 100 is sandwiched by the roller pair 16. The winding unit 13 is prevented from winding the transfer paper 100 more than necessary.

  According to the recording apparatus 1 of this embodiment, after the control unit 9 alternately performs the feeding process and the winding process, the control unit 9 performs the medium slack process, whereby the roller pair 16 and the winding unit 13 are performed. In this state, the transfer paper 100 is slackened. The controller 9 sets the set torque T by performing parameter setting processing in this state. Until the set torque T is set, as described above, the transfer sheet 100 is appropriately fed toward the winding unit 13 by alternately repeating the feeding operation and the winding operation. After the set torque T is set, the controller 9 controls the winding motor 23 using the set torque T, so that the winding motor 23 is operated in synchronization with the feed motor 17 even when the winding motor 23 is operated in synchronism. It is possible to prevent the take-up unit 13 from winding the transfer paper 100 more than necessary.

  According to the recording apparatus 1 of the present embodiment, when the non-repeating mode is selected, the feeding operation and the winding operation are performed once instead of alternately repeating the feeding operation and the winding operation. Therefore, when the non-repetitive mode is selected, the entire processing time is shortened compared to when the repeat mode is selected. Therefore, when the transfer paper 100 that is not likely to stick to a member on the feed path due to static electricity or the like is used, for example, when the transfer paper 100 is relatively thick, the user selects the non-repetitive mode. That's fine.

  According to the recording apparatus 1 of the present embodiment, when the repetition mode is selected, the feeding operation and the winding operation are alternately repeated while the suction fan 4 is stopped. Accordingly, the transfer paper 100 is prevented from sticking to the upper surface of the platen 3 during the feeding operation, and the occurrence of the mountain-shaped portion 103 on the transfer paper 100 in the platen 3 is suppressed.

The suction fan 4 is an example of a “suction part”. The feed motor 17 is an example of a “feed drive unit”. The winding motor 23 is an example of a “winding drive unit”. The paper tube 24 is an example of a “winding core”. The transfer sheet 100 is an example of a “medium”. The set torque T is an example of a “control parameter”.
It goes without saying that the present invention is not limited to the above-described embodiment, and various configurations can be employed without departing from the spirit of the present invention. For example, this embodiment can be changed into the following forms.

  The recording apparatus 1 is not limited to the one that forms an image to be transferred to a transfer object on the transfer paper 100 as in this embodiment. That is, the ink ejected by the recording unit 5 is not limited to sublimation ink, and may be water-based ink, oil-based ink, solvent ink, or ultraviolet curable ink, for example. Furthermore, the recording method of the recording unit 5 is not limited to the inkjet method, and may be, for example, an electrophotographic method or a thermal method. The material of the medium is not particularly limited, and various materials such as paper and film can be used. The transfer paper 100 is often thin, and in this case, the present invention is particularly useful because it easily adheres to a member on the feed path due to static electricity or the like.

  When the non-repetitive mode is selected and the feeding operation is performed, a state in which the transfer paper 100 is slackened between the roller pair 16 and the winding unit 13 is created. Therefore, when the non-repetitive mode is selected, the control unit 9 may perform the parameter setting process as it is without performing the winding process and the medium slack process after performing the feeding process.

1: Recording device 5: Recording unit 12: Feeding unit 13: Winding unit

Claims (6)

A feeding section for sending a medium;
A recording unit for recording on the medium;
Provided on the downstream side of feeding of the medium from the feeding unit, and a winding unit for winding the medium,
In a state where the winding unit stops winding the medium, the feeding unit feeds the medium, and in a state where the feeding unit stops feeding the medium, the winding unit picks up the medium. A recording apparatus characterized by alternately performing a winding operation for winding. The feeding unit has a roller pair that feeds the medium by rotating;
The recording apparatus according to claim 1, wherein the roller pair sandwiches the medium when the winding operation is performed. The feed unit further includes a feed drive unit that rotates the roller pair,
The winding unit includes a winding side support unit that rotatably supports a winding core on which the medium is wound, and a winding driving unit that rotates the winding core,
A control unit for controlling the feed drive unit and the winding drive unit;
The control unit includes: a feed process for operating the feed drive unit in a state where the take-up drive unit is stopped so that the feed operation is performed; and the feed drive unit so that the take-up operation is performed. The recording apparatus according to claim 2, wherein a winding process of operating the winding drive unit in a stopped state is alternately repeated. The control unit controls the winding drive unit so that a rotation direction of the winding core is switched between a winding direction for winding the medium and a reverse rotation direction opposite to the winding direction. ,
The control unit repeatedly performs the feeding process and the winding process alternately, and then the medium loosening process that operates the winding drive unit so that the winding core rotates in the reverse rotation direction; Control for controlling the winding drive unit by operating the winding drive unit in a state where the medium is slackened between the roller pair and the winding unit after performing the medium slack process. The recording apparatus according to claim 3, wherein the recording apparatus performs parameter setting processing for setting parameters. An operation unit that accepts an operation for selecting any one of a repeating mode and a non-repeating mode;
When the operation unit accepts the selection operation in the repetition mode, the control unit alternately repeats the feeding process and the winding process, and the operation unit accepts the selection operation in the non-repetition mode. In this case, before the medium is slackened between the roller pair and the winding unit, the feeding process and the winding process are performed once, or the feeding process is performed 1 The recording apparatus according to claim 4, wherein the recording apparatus is rotated and the winding process is not performed. A platen provided facing the recording unit;
An adsorption part that adsorbs the medium to the outer surface of the platen,
The recording apparatus according to claim 5, wherein the control unit stops the suction unit when the operation unit receives a selection operation of the repetition mode.

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