Recording device and paper feeder

Abstract

This technology provides a way to properly supply sheets from a roll of sheet material. [Solution] The holding part that rotatably holds the roll R includes a pressing member that presses against the outer circumference of the roll R.

Description

Technical Field

[0001] The present invention relates to a recording device and a paper feeding device that perform recording on a recording medium wound in a roll shape.

Background Art

[0002] Patent Document 1 discloses a printing device including a temporary setting unit for temporarily placing a roll sheet having support members attached to both ends. In the printing device of Patent Document 1, after the roll sheet is temporarily placed in the temporary setting unit, the roll sheet is set to the apparatus main body by rotating the temporary setting unit from the attachment / detachment position to the storage position.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the printing device of Patent Document 1, the roll sheet set in the temporary setting unit is configured to be supported at both ends. In this case, there is a risk of unwinding of the wound sheet. Unwinding specifically refers to a phenomenon in which the sheet wound around the roll separates from the roll, and the phenomenon of the sheet separating is transmitted from the outermost layer sheet to the inner layer sheet. When the sheet is supplied in a state where unwinding has occurred, skewing occurs during supply, and in the worst case, there is a risk of jamming.

[0005] Therefore, the present invention provides a technique capable of appropriately supplying a sheet from a roll sheet.

Means for Solving the Problems

[0006] Therefore, the recording device of the present invention comprises a recording unit that records on a sheet supplied from a roll sheet, and a holding unit that moves to a first position in which the roll sheet can be replaced and to a second position which is the position of the roll sheet when the recording unit records on the sheet, and rotatably holds the roll sheet, wherein the holding unit has a first pressing means for pressing the outer circumference of the roll sheet. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a technology that enables the proper supply of sheets from a roll sheet. [Brief explanation of the drawing]

[0008] [Figure 1] This is an external perspective view showing the recording device. [Figure 2] This is a schematic cross-sectional view showing the main parts of the recording device. [Figure 3] This is a cross-sectional view showing a feeder with the roll in the replacement position. [Figure 4] This is a cross-sectional view showing a feeder with the roll in the recording position. [Figure 5] This is a diagram showing the supply device. [Figure 6] This diagram shows a roll pressing unit that presses against a roll. [Figure 7] This diagram compares the conventional configuration with the configuration of this embodiment. [Figure 8] This diagram shows a feeding device when the roll diameter is relatively small. [Figure 9] This is a block diagram illustrating an example of the control system configuration in a recording device. [Figure 10] This diagram shows the spindle and flange that are attached to the roll. [Figure 11] This is a diagram showing the top surface of the roll set stand. [Figure 12] This is a diagram showing the side view of the roll set stand. [Figure 13]This diagram shows a supply device in the replacement position. [Figure 14] This diagram shows a supply device in the recording position. [Figure 15] This diagram shows the paper feeding device from the Z direction. [Modes for carrying out the invention]

[0009] (First embodiment) A first embodiment of the present invention will be described below with reference to the drawings.

[0010] Figure 1 is an external perspective view showing a recording device 100 to which this embodiment can be applied. The recording device 100 includes a sheet supply unit that pulls out a sheet 1, which is to be used as a recording medium, from a roll R and supplies it to the main body of the device, and a recording unit that records on the supplied sheet 1. The recording unit employs an inkjet method that records by ejecting liquid onto the sheet 1. Hereinafter, the sheet width direction of the roll R will be referred to as the X direction, the direction in which the sheet is transported in the recording unit 400 (described later) will be referred to as the Y direction, and the direction of gravity will be referred to as the Z direction (the direction of gravity will be the -Z direction).

[0011] The recording device 100 can accommodate rolls R, which are rolls of a long, continuous sheet 1 wound into a roll shape, in two roll-holding sections, one in the upper section and one in the lower section. Images are recorded on sheets 1 that are selectively drawn from these rolls R. The user can input various commands to the recording device 100, such as specifying the size of sheet 1 and switching between online and offline modes, using various switches on the operation panel 28.

[0012] FIG. 2 is a schematic cross-sectional view showing the main part of the recording apparatus 100. FIG. 2(a) shows a state where the roll R is in the exchange position which is the exchangeable inner position, and FIG. 2(b) shows a state where the roll R is in the recording position which is the position during recording. In the recording apparatus 100, two supply devices 200 corresponding to the two rolls R are arranged vertically. The sheet 1 pulled out from the roll R by the supply device 200 is conveyed to the recording unit 400 where an image can be recorded along the sheet conveyance unit 300. The recording unit 400 records an image on the sheet 1 by discharging ink from the inkjet recording head 18.

[0013] The supply device 200 includes a roll set base 30, and the roll set base 30 includes a roll pressing unit that presses the roll R. Details of the roll pressing unit will be described later.

[0014] The recording head 18 discharges ink from the discharge port using a discharge energy generating element such as an electrothermal conversion element (heater) or a piezo element. The recording head 18 is not limited to only the inkjet method, and the recording method of the recording unit 400 is also not limited. For example, it may be a serial scan method or a full line method. In the case of the serial scan method, an image is recorded accompanied by the conveyance operation of the sheet 1 and the scanning of the recording head 18 in a direction intersecting the conveyance direction of the sheet 1. In the case of the full line method, a long recording head 18 extending in a direction intersecting the conveyance direction of the sheet 1 is used, and an image is recorded while continuously conveying the sheet 1.

[0015] In the roll R, on the away side in the X direction, a press-fitting portion 34b of the flange 34a (described later) is inserted, and the flange 34a is supported by the flange support portion 34. The press-fitting portion 34b is driven to rotate forward and backward by a motor 43 for roll driving (see FIG. 9 described later).

[0016] The supply device 200 comprises a drive unit 3, an arm member (moving body) 4, an arm rotation shaft 5, a sensor unit 6, a rocking member 7, driven rotating bodies (contact bodies) 8, 9, a separating flapper (upper guide body) 10, and a flapper rotation shaft 11. The transport guide 12 guides the front and back surfaces of the sheet 1 as it is pulled out from the supply device 200, and leads the sheet 1 to the recording unit 400. The transport roller 14 is rotated in the forward and reverse directions by a motor 45 for driving the transport roller (see Figure 9, described later). The nip roller 15 is capable of driven rotation in accordance with the rotation of the transport roller 14, and can move toward and away from the transport roller 14 and adjust the nip force by a motor 47 for adjusting the nip force (see Figure 9, described later). The transport speed of the sheet 1 by the transport roller 14 is set higher than the pull-out speed of the sheet 1 by the rotation of the roll R, thereby applying back tension to the sheet 1 and allowing it to be transported while taut.

[0017] The platen 17 of the recording unit 400 regulates the position of the sheet 1, and the cutter 20 cuts the sheet 1 on which the image is recorded. The output tray 21 supports the sheet 1 on which the image is recorded when it is ejected. The operation of this recording device 100 is controlled by the CPU 201 (see Figure 9 below), which will be described later.

[0018] Figure 3 is a cross-sectional view of the supply device 200 with the roll R in the replacement position, and Figure 4 is a cross-sectional view of the supply device 200 with the roll R in the recording position. Figure 5 is a diagram showing the supply device 200. Figure 6 is a diagram showing the roll pressing unit 35 that presses the roll R.

[0019] The roll set stand 30 is rotatable around the rotation axis 31 to a replacement position (see Figure 3) and a recording position (see Figure 4). The roll set stand 30 is provided with two reinforcing stays 32 extending in the X direction, and a flange support portion 33 is fixed to the home side of the reinforcing stays 32. In Figures 3 and 4, the flange support portion 33 and flange 33a on the home side are omitted. The flange 33a is rotatably mounted to the flange support portion 33 on the home side by a roll drive motor 43, which will be described later. The flange support portion 34 on the away side is provided to be movable in the X direction relative to the reinforcing stay 32, and the flange 34a on the away side is rotatably mounted to the flange support portion 34.

[0020] The reason for this is that the recording on sheet 1 is performed by transporting sheet 1 with the home side as the reference point, and furthermore, the position of the away side flange 34a differs depending on the size of the paper used. The home side flange 33a is integrally provided with a press-fitting section 33b for press-fitting into the paper core of the roll R, and the away side flange 34a is integrally provided with a press-fitting section 34b for press-fitting into the paper core of the roll R.

[0021] In this embodiment, multiple roll pressing units 35 are provided between the home-side flange 33a and the away-side flange 34, movably arranged along the reinforcing stay 32. The roll pressing units 35 are configured to press the outer circumference of the roll R and can be moved to any position according to the width size of the roll R being fed. The roll pressing unit 35 in this embodiment comprises a base member 36 and a pressing member 37, with four movement restricting portions 37a provided on one pressing member 37, and elastically deformable hook-shaped portions 37b provided at the tip of the movement restricting portions 37a. The pressing member 37 has holes into which the movement restricting portions 37a are inserted, and by inserting the movement restricting portions 37a all the way in while deforming the hook-shaped portions 37b, the hook-shaped portions 37b act as a retainer.

[0022] In this embodiment, when the supply device 200 is in the exchange position as shown in Figure 3, the base member 36 is in a horizontal position, and when it is in the recording position as shown in Figure 4, the base member 36 is tilted from horizontal to cover the roll R.

[0023] This configuration allows the roll pressing unit 35 to move while maintaining a posture that presses the roll R. Also, as shown in Figure 6, a spring 38 is sandwiched between the pressing member 37 and the base member 36, and the spring 38 presses the pressing member 37 against the roll R. Figure 6(a) shows a state in which a relatively large amount of sheet 1 is wound around the roll R (large diameter of roll R), and Figure 6(b) shows a state in which a relatively small amount of sheet 1 is wound around the roll R (small diameter of roll R). The pressing member 37 is provided with pressing rollers 39 at equal positions from the center of the roll R, and is rotatable in a direction that reduces the sliding resistance between the pressing member 37 and the roll R when the roll R rotates. In addition, the pressing member 37 has an arc shape that follows the outer circumference of the roll R. This is to prevent the roll R from coming into contact with the pressing member 37 when the pressing rollers 39 support the roll R at two points when the diameter of the roll R is small. Therefore, the arrangement of the pressing rollers 39 and the radius of the arc shape of the pressing member 37 should be configured such that they do not interfere with each other even when the winding diameter of the roll R is at its minimum. Note that the pressing member 37 does not have an arc shape; for example, a V-shape can also be used to avoid interference with the roll.

[0024] Figures 7(a) to 7(c) show the process of setting the roll in a conventional configuration without a roll pressing unit 35. Figures 7(d) to 7(f) show the process of setting the roll in this embodiment.

[0025] In the conventional configuration (see Figures 7(a) to (c)), there is no roll pressing unit that presses the outer circumference of the roll. Therefore, when in the exchange position, a force is generated in the roll sheet that tries to return it from a wound state to a flat state, causing slack in the winding. Furthermore, slack progresses due to vibrations during movement until it moves to the recording position, and this slack is suppressed when it comes into contact with the two driven rotating bodies in the recording position. However, since slack has already occurred when it is set in the recording position, feeding the paper in this state may cause skew, and in the worst case, a jam may occur, making it impossible to feed the paper.

[0026] According to the configuration of this embodiment (see Figures 7(d) to (f)), the roll pressing unit presses the outer circumference of the roll R in all states: when in the exchange position, while moving from the exchange position to the recording position, and when in the recording position. Therefore, no loosening of the winding occurs on the roll in any state. This allows for proper feeding of the sheet from the roll sheet.

[0027] The following describes how to set up the roll R. First, rotate the roll setting stand 30 to the exchange position and move the roll pressing unit 35 to the desired position (see Figure 5a), then place the roll R on the roll pressing unit 35 in a state where there is no slack in the winding. Then, while lifting the roll R by hand, insert the paper core of the roll R into the press-fit portion 33b of the flange 33a on the home side, and then, while moving the flange 34a on the away side, insert the press-fit portion 34b (see Figure 5b). At this time, since the roll R is supported by the flanges at both ends, if nothing is done, the roll R will become slack. However, in this embodiment, the roll pressing unit 35 presses and supports the roll R from below, so the roll R does not become slack.

[0028] Once the press-fit sections 33b and 34b have been inserted, the roll set stand 30 is rotated around the rotation axis 31 using the reinforcing stay 32. This completes setting the roll R to the recording position. Throughout this rotation, the roll pressing unit 35 constantly presses the outer circumference of the roll R, so no loosening of the roll R occurs. The arm member (moving body) 4 and the oscillating member 7 are positioned so as not to interfere with each other in the Y direction, so they can be positioned at any position in the X direction relative to each other (see Figure 5(c)).

[0029] In the recording position shown in Figure 4, the roll pressing unit 35 remains pressing against the roll R, but because the pressing roller 39 is in contact with the roll R, the sliding resistance is low, and the impact on paper feeding and recording is minimal. The recording position is the final position of the roll R during recording, and recording begins in this state. Note that in the recording position, if the driven rotating bodies (contact bodies) 8 and 9 are pressed against the roll by the arm member (moving body) 4, and winding slack is suppressed, the roll pressing unit 35 may be configured to move away from the roll R in the recording position. In other words, after the driven rotating bodies 8 and 9 begin pressing against the roll R, the roll pressing unit 35 is configured to release the pressure on the outer circumference of the roll R.

[0030] Next, the configuration for feeding the roll R to the recording unit 400 (see Figure 2) will be described. The arm member (movable body) 4 is mounted on the transport guide 12 (see Figure 3) by a rotating shaft 5 so as to be rotatable in the directions of arrows A1 and A2. A torsion coil spring 3c is interposed between the arm member 4 and the rotating cam 3a of the drive unit 3, which presses the arm member 4 in the direction of arrow A1. The rotating cam 3a is rotated by a motor 43 for adjusting the pressing force (see Figure 9, which will be described later), and the force with which the torsion coil spring 3c presses the arm member 4 in the direction of arrow A1 changes according to its rotation position.

[0031] As described later, when setting the tip of the sheet 1 into the sheet supply port M between the arm member 4 and the separation flapper 10, the pressing force of the arm member 4 by the torsion coil spring 3c is switched in four stages according to the rotational position of the rotating cam 3a. The pressing force of the arm member 4 can be switched between a pressing state with a relatively small force (weak nip pressing force), a pressing state with a relatively large force (strong nip pressing force), a pressing state with a force between weak and strong nip (medium nip pressing force), and a release state. In this embodiment, there are four stages of pressing force, but it is not limited to four stages, and it may be configured to be continuously adjustable.

[0032] A swinging member 7 is swingably attached to the arm member 4, and first and second driven rotating bodies (rotating bodies) 8 and 9 are rotatably attached to the swinging member 7, which are positioned offset in the circumferential direction of the roll R. The driven rotating bodies 8 and 9 press against the outer circumference of the roll R from below in the direction of gravity due to a pressing force in the direction of arrow A1 against the arm member 4. That is, the driven rotating bodies 8 and 9 press against the outer circumference of the roll R from below in the direction of gravity. The pressing force is changed according to the pressing force that presses the arm member 4 in the direction of arrow A1.

[0033] A separation flapper 10 is mounted on the recording device 100, positioned above the arm member 4, so as to be rotatable around the rotation axis 11 in the directions of arrows B1 and B2 (see Figure 4). The separation flapper 10 is configured to contact and press against the outer surface of the roll R by its own weight. If it is necessary to press the roll R more strongly, a biasing force from a biasing member such as a spring may be used. A driven roller 10a is rotatably provided at the contact portion of the separation flapper 10 with the roll R to minimize the influence of the pressing force on the sheet 1. In addition, the separation portion 10b at the tip of the separation flapper 10 is formed to extend as close as possible to the surface of the roll R in order to facilitate the separation of the leading edge of the sheet from the roll R.

[0034] Sheet 1 is pulled out of the roll R by passing over the driven rotating bodies 8 and 9, and the lower surface of sheet 1 is guided by the guide portion 4b at the top of the arm member 4. It is then supplied through the supply path from the sheet supply port M between the separating flapper 10 and the arm member 4. In this way, the driven rotating bodies 8 and 9 are pressed against the outer circumference of the roll R, and the lower surface of sheet 1, which is pulled out by passing over the driven rotating bodies 8 and 9, is guided by the guide portion 4b. This allows sheet 1 to be supplied smoothly by utilizing its own weight. Furthermore, since the driven rotating bodies 8 and 9 and the guide portion 4b move according to the outer diameter of the roll R, sheet 1 can be reliably pulled out of the roll R and transported regardless of the outer diameter of the roll R.

[0035] The recording device 100 is equipped with an automatic sheet loading function (automatic paper feeding function). During automatic loading, when the user sets an unused roll R into the device, the recording device 100 detects the leading edge of the sheet while rotating the roll R in the opposite direction to when the sheet is supplied (paper feeding). Next, the recording device 100 rotates the roll R in the direction of rotation when the sheet is supplied, and automatically feeds out the leading edge of the sheet that has separated from the roll R. The sensor unit 6 detects that the leading edge of the sheet 1 has peeled off from the outer surface of the roll R, resulting in sheet separation. The leading edge of the sheet 1 detected by the sensor unit 6 is automatically inserted into the sheet supply opening between the arm member 4 and the separation flapper 10 and fed out.

[0036] When detecting the leading edge of sheet 1 while rotating roll R in the opposite direction to the sheet feeding direction, if roll R is loose as in conventional systems, the periodic angle of one rotation of roll R's leading edge exceeds 360 degrees. As a result, the position of the leading edge cannot be correctly determined, and a jam may occur because the leading edge of the sheet cannot be inserted into the sheet feeding opening. The period of the leading edge when rotated in the reverse direction is checked, and if it falls within 360 degrees ± 3 degrees, it is determined that the winding looseness has been resolved, and rotation in the paper feeding direction is resumed. If it does not fall within 360 degrees ± 3 degrees, the reverse rotation must be repeated and the rotation continued until the winding looseness is resolved. Thus, if winding looseness occurs when roll R is set to the recording position, a retry operation to resolve the winding looseness is performed, which increases the paper feeding time. Furthermore, this problem becomes more serious with media that have high rigidity.

[0037] In this embodiment, the roll pressing unit 35 constantly presses the outer circumference of the roll R from the exchange position to the recording position, which suppresses loosening of the roll R and shortens the paper feeding time by the automatic loading function. Furthermore, in this embodiment, since there are two upper and lower supply devices 200, it is possible to switch from a state in which the sheet 1 is supplied from one supply device 200 to a state in which the sheet 1 is supplied from the other supply device 200. In such a case, one supply device 200 rewinds the sheet 1 that it had been supplying onto the roll R. At that time, the leading edge of the sheet 1 to be rewound is rewound to a position detected by the sensor unit 6.

[0038] Figure 8 shows the feeding device 200 when the diameter of the roll R is relatively small. The pressing member 37 is movable radially to the roll R by the spring 38 and presses the outer circumference of the roll R, so it is possible to press even when the roll R is small. The arm member 4 is pressed in the direction of arrow A1 by the torsion coil spring 3c, so it rotates in the direction of arrow A1 in accordance with the decrease in the outer diameter of the roll R. Furthermore, by rotating the rotating cam 3 in accordance with the change in the outer diameter of the roll R, the pressing force of the arm member 4 by the torsion coil spring 3c can be maintained within a predetermined range regardless of the change in the outer diameter of the roll R.

[0039] Furthermore, since the separation flapper 10 is pressed in the direction of arrow B1, it rotates in the direction of arrow B1 in accordance with the decrease in the outer diameter of the roll R. As a result, the separation flapper 10 forms a supply path between itself and the transport guide 12 even when the outer diameter of the roll R becomes smaller, and guides the upper surface of the sheet 1 with its lower surface 10c. In this way, the arm member 4 and the separation flapper 10 rotate in accordance with the change in the outer diameter of the roll R, forming a supply path of approximately constant size between them, regardless of the outer diameter of the roll R.

[0040] Figure 9 is a block diagram illustrating an example of the control system configuration in the recording device 100. The CPU 201 of the recording device 100 controls each part of the recording device 100, including the supply device 200, the sheet transport unit 300, and the recording unit 400, according to the control program stored in the ROM 204. The CPU 201 receives input from the operation panel 28 via the input interface 202, including the type and width of the sheet 1 and various setting information. The CPU 201 is also connected to various external devices 29, including a host device such as a personal computer, via the external interface 205, and exchanges various information such as print data with the external devices 29. The CPU 201 also writes and reads information related to the sheet 1 to and from the RAM 203. The motor 43 is a motor for driving the roll R in the forward and reverse directions via the home-side flange 33a (see Figure 5), and constitutes a drive mechanism (rotation mechanism) capable of rotating the roll R. The motor 44 for adjusting the pressing force is a motor that rotates the rotating cam 3a to adjust the pressing force on the arm member 4, and the motor 35 for driving the conveyor roller is a motor that rotates the conveyor roller 14 in the forward and reverse directions. The roll sensor 32 is a sensor for detecting when the roll set stand 30 is set to the recording position. The roll rotation amount sensor 36 is a sensor for detecting the amount of rotation of the roll R, and is, for example, a rotary encoder that outputs a number of pulses corresponding to the amount of rotation of the roll R.

[0041] In this embodiment, the supply device 200 is described as having a roll set stand 30, but it is not limited to this configuration. The paper feed device, which includes the roll set stand 30, may be provided separately from the recording device 100 and connectable to it, and the paper feed device and the recording device 100 may be connected when supplying roll paper to the recording device 100.

[0042] Thus, the holding part that rotatably holds the roll R includes a pressing member that presses against the outer circumference of the roll R. This makes it possible to provide a technology that can properly supply sheets from the roll sheet.

[0043] (Second embodiment) A second embodiment of the present invention will be described below with reference to the drawings. Since the basic configuration of this embodiment is the same as that of the first embodiment, a characteristic configuration will be described below. In this embodiment, a configuration in which the roll R is equipped with a spindle 50 will be described.

[0044] Figure 10 shows the roll R in this embodiment, and the spindle 50 and flange attached to the roll R. The spindle 50 is made of extruded aluminum or the like, and the home side flange 51 is fixed to the spindle 50. On the other hand, the away side flange 52 is configured to be fixed according to the roll width.

[0045] The home-side flange 51 is provided with a press-fit portion 51a formed integrally with the home-side flange 51, and the away-side flange 52 is provided with a press-fit portion 52a formed integrally with the away-side flange 52. The press-fit portions 51a and 52a are inserted into the paper core of the roll R. An end gear 53 is provided at the home-side end of the spindle 50, and when set in the main body of the device, it meshes with a gear drive train connected to the motor, enabling the roll R to rotate.

[0046] The method for attaching the roll sheet will now be explained. To attach it, first remove the away flange 52 from the spindle 50 (Figure 10(a)), and insert the paper core of the roll R into the press-fit portion 51a of the home flange 51 (Figure 10(b)). Then, pass the away flange 52 through the spindle 50 and insert the press-fit portion 52a into the paper core of the roll R to complete the attachment of the flange to the roll R.

[0047] Figure 11 shows the top view of the roll set stand 30 in this embodiment, and Figure 12 shows the side view of the roll set stand 30. In the roll set stand 30 in this embodiment, the home-side spindle receiver 54 is fixed to the home side and the away-side spindle receiver 55 is fixed to the away side with respect to two reinforcing stays 32 extending in the X direction. The home-side spindle receiver 54 and the away-side spindle receiver 55 are each configured with U-shaped bearing portions 54a and 55a that receive the spindle 50 (see Figure 12). The position in the XY direction is determined by setting the spindle 50 with the roll R on it into the bearing portions 54a and 55a. In addition, the restricting component (restricting member) 56 that restricts the Z direction is rotatable around the rotation axis 56a and includes a lock lever 57.

[0048] As shown in Figure 12, when setting the spindle 50, the Z-regulating component 56 is in the open position (see Figure 12(a)), and once the setting is complete, it is rotated to the closed position (see Figure 12(b)). Then, the Z-regulating component is fixed by pulling the lock lever 57. The configuration of the regulating component 56 and the lock lever 57 described here is the same on the away side. The subsequent procedure is the same as in the first embodiment, but the configuration with the spindle in this embodiment can also prevent the roll paper from becoming loose.

[0049] Thus, the present invention can also be applied to configurations equipped with a spindle. This allows for the proper supply of sheets from a roll sheet.

[0050] (Third embodiment) A third embodiment of the present invention will be described below with reference to the drawings. Since the basic configuration of this embodiment is the same as that of the first embodiment, only characteristic configurations will be described below. In the first embodiment, a configuration was described in which the roll set stand 30 could rotate between an exchange position and a recording position. In this embodiment, a configuration that moves using rails or the like will be described.

[0051] Figure 13 shows the supply device 200 in the exchange position state in this embodiment, and Figure 14 shows the supply device 200 in the recording position state. The supply device 200 in this embodiment is equipped with a telescopic rail 60, which comprises a telescopic part 60a and a fixed part 60b. The telescopic part 60a is retractable by sliding and being stored inside the fixed part 60b. The telescopic rail 60 is configured in two locations, on the home side and the away side of the recording device 100. The fixed part 60b is fixed to the housing of the recording device 100, and the roll set stand 30 described in the first actual machine configuration is fixed to the tip of the telescopic part 60a. The configuration of the roll set stand 30 is the same as in the first embodiment.

[0052] The user can move the reinforcing stay 32 in the ±Y direction, allowing the roll set stand 30 to slide linearly between the replacement position and the recording position. Figure 13 shows the state where the telescopic section 60a is fully extended, which is the replacement position. Figure 14 shows the state where the roll set stand 30 has moved to the recording position. As shown in Figure 13, the oscillating member 7 fixed to the arm member 4 is in a position to interfere with the roll R in the recording position. However, the oscillating member 7 is configured to swing, and when the roll R moves from the replacement position to the recording position, the roll R and the oscillating member 7 fixed to the arm member 4 come into contact, causing the torsion coil spring 3c to be displaced and the oscillating member 7 to move in the -Z direction and retract, thus preventing interference.

[0053] Figure 15 shows the paper feeding device 200 from the Z direction. The roll pressing unit 35 and the oscillating member 7 fixed to the arm member 4 are positioned so as not to interfere with each other in the X direction.

[0054] Thus, the supply device 200 is equipped with an extendable rail 60, and the roll set stand 30 can move between the exchange position and the recording position by extending or retracting the extendable rail 60. Even with this configuration, sheets can be supplied appropriately from the roll sheet.

[0055] This embodiment includes the following configuration.

[0056] (Composition 1) A recording unit that records information onto sheets supplied from a roll sheet, A holding unit moves between a first position where the roll sheet can be replaced and a second position which is the position of the roll sheet when recording on the sheet by the recording unit, and holds the roll sheet so that it can rotate. A recording device equipped with, The recording device is characterized in that the holding portion has a first pressing means for pressing the outer circumference of the roll sheet.

[0057] (Configuration 2) The recording device according to Configuration 1, wherein the first pressing means is capable of pressing the outer circumference of the roll sheet in the first position, during movement from the first position to the second position, and in the second position.

[0058] (Composition 3) The recording device according to configuration 1 or 2, wherein the first pressing means is capable of releasing the pressure on the outer circumference of the roll sheet in the second position.

[0059] (Composition 4) The recording device according to configuration 3, further comprising a second pressing means for pressing the outer circumference of a roll sheet when the roll sheet is in the second position.

[0060] (Composition 5) The recording device according to configuration 4, wherein the pressing of the roll sheet by the first pressing means is released after the second pressing means starts pressing the roll sheet against its outer circumference.

[0061] (Composition 6) The recording device according to any one of configurations 1 to 5, wherein the holding part moves from the first position to the second position by rotation.

[0062] (Composition 7) The recording device according to any one of configurations 1 to 5, wherein the holding portion moves from the first position to the second position by sliding linearly.

[0063] (Composition 8) The recording device according to any one of configurations 1 to 7, wherein the first pressing means comprises a pressing roller, and the pressing roller presses the outer circumference of the roll sheet.

[0064] (Composition 9) The recording device according to any one of configurations 1 to 8, wherein the holding part holds a roll sheet equipped with a spindle, and the spindle is set and held in a U-shaped bearing.

[0065] (Composition 10) The recording device according to configuration 9, wherein the holding portion has a restricting member that restricts the movement of the spindle set in the bearing portion, and the restricting member is rotatable.

[0066] (Composition 11) The recording device according to configuration 4 or 5, wherein the second pressing means is configured to be swingable.

[0067] (Composition 12) It comprises a plurality of the aforementioned first pressing means and a plurality of the aforementioned second pressing means, The recording device according to configuration 4 or 5, wherein the plurality of first pressing means and the plurality of second pressing means are provided in positions that do not interfere with each other in the second position.

[0068] (Composition 13) It can be connected to a device that supplies sheets pulled from a roll sheet. A paper feeding device that is movable between a first position in which a roll sheet can be replaced and a second position in which a sheet is supplied to the device, and is equipped with a holding part that rotatably holds the roll sheet, The paper feeding device is characterized in that the holding portion includes a pressing means for pressing the outer circumference of the roll sheet. [Explanation of Symbols]

[0069] 1 sheet 4 Arm members 18 Recording head 30 Roll Set Stand 35 Roll Pressing Unit 50 spindles 100 Recording device

Claims

1. A recording unit that records information onto sheets supplied from a roll sheet, A holding unit moves between a first position where the roll sheet can be replaced and a second position which is the position of the roll sheet when recording on the sheet by the recording unit, and holds the roll sheet so that it can rotate. A recording device equipped with, The recording device is characterized in that the holding portion has a first pressing means for pressing the outer circumference of the roll sheet.

2. The recording device according to claim 1, wherein the first pressing means is capable of pressing the outer circumference of the roll sheet in the first position, during movement from the first position to the second position, and in the second position.

3. The recording device according to claim 1, wherein the first pressing means is capable of releasing the pressure on the outer circumference of the roll sheet in the second position.

4. The recording device according to claim 3, further comprising a second pressing means for pressing the outer circumference of a roll sheet when the roll sheet is in the second position.

5. The recording device according to claim 4, wherein the pressing of the roll sheet by the first pressing means is released after the second pressing means has started pressing the roll sheet.

6. The recording device according to claim 1, wherein the holding portion moves from the first position to the second position by rotation.

7. The recording device according to claim 1, wherein the holding portion moves from the first position to the second position by sliding linearly.

8. The recording device according to claim 1, wherein the first pressing means comprises a pressing roller, and the pressing roller presses the outer circumference of the roll sheet.

9. The recording device according to claim 1, wherein the holding part holds a roll sheet equipped with a spindle, and the spindle is set and held in a U-shaped bearing.

10. The recording device according to claim 9, wherein the holding portion has a restricting member that restricts the movement of the spindle set in the bearing portion, and the restricting member is rotatable.

11. The recording device according to claim 4, wherein the second pressing means is configured to be swingable.

12. The system comprises a plurality of the first pressing means and a plurality of the second pressing means, The recording device according to claim 4 or 5, wherein the plurality of first pressing means and the plurality of second pressing means are provided in positions that do not interfere with each other in the second position.

13. It can be connected to a device that supplies sheets pulled from a roll sheet. A paper feeding device that is movable between a first position in which a roll sheet can be replaced and a second position in which a sheet is supplied to the device, and is equipped with a holding part that rotatably holds the roll sheet, The paper feeding device is characterized in that the holding portion includes a pressing means for pressing the outer circumference of the roll sheet.

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