Media feeding device, recording device

Abstract

To prevent roller traces from occurring on a roll-like medium.SOLUTION: The medium feeding device includes: a storage part that stores a roll-like medium where sheets are wound and laminated; a pair of rollers provided on the storage part at predetermined intervals; and an endless annular feeding belt that is hung and wound on the pair of rollers and rotates following the rotation of the pair of rollers. The feeding belt supports the outer peripheral surface of the roll-like medium, and the feeding belt is rotationally driven, thereby rotating the roll-like medium, feeding the sheet.SELECTED DRAWING: Figure 5A

Description

[Technical Field]

[0001] The present invention relates to a medium feeding device and a recording device. [Background technology]

[0002] Conventionally, as shown in Patent Document 1, a conveyance device is known in which a roll body is supported by a drive roller and a driven roller, and the roll body is rotated by driving the drive roller to pay out a medium from the roll body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-132364 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conveyance device described in Patent Document 1, the outer circumferential surface of the roll body is pressed against the drive roller and the driven roller, which poses a problem in that, for example, in the case of specialty paper with an ink-receiving layer on the surface of the medium, the ink-receiving layer is crushed by the pressure of the rollers. When the receptor layer of the medium is crushed, the reflectivity of that area changes, resulting in streaky roller marks and a decrease in image quality. [Means for solving the problem]

[0005] The medium feeding device comprises a storage section that stores a roll-shaped medium in which sheets are wound together, a pair of rollers that are arranged in the storage section and spaced a predetermined distance apart, and an endless circular feeding belt that is wrapped around the pair of rollers and rotates in conjunction with the rotation of the pair of rollers.The feeding belt supports the outer surface of the roll-shaped medium, and the feeding belt is driven to rotate, thereby rotating the roll-shaped medium and feeding the sheets.

[0006] The recording apparatus includes the medium feeding device described above and a recording section that performs recording on the sheet fed from the medium feeding device. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view showing the configuration of a recording apparatus according to a first embodiment. [Figure 2] FIG. 1 is a perspective view showing a configuration of a medium feeding device according to a first embodiment. [Figure 3] FIG. 1 is a perspective view showing a configuration of a medium feeding device according to a first embodiment. [Figure 4] FIG. 2 is a perspective view showing the configuration of a contact member according to the first embodiment. [Figure 5A] FIG. 1 is a schematic diagram showing the configuration of a medium feeding device according to a first embodiment. [Figure 5B] FIG. 1 is a schematic diagram showing the configuration of a medium feeding device according to a first embodiment. [Figure 6A] FIG. 10 is a schematic diagram showing the configuration of a medium feeding device according to a second embodiment. [Figure 6B] FIG. 10 is a schematic diagram showing the configuration of a medium feeding device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] 1. First embodiment First, we will explain the configuration of the recording device 10. The recording device 10 of this embodiment is an inkjet printer of a serial recording type. As shown in Fig. 1, the recording device 10 includes a housing 11 having a substantially rectangular parallelepiped shape. A feed tray 12 on which a medium M (e.g., paper) can be set before recording is provided on an upper surface 11A of the housing 11 of the recording device 10, which is in the +Z direction. The medium M set in the feed tray 12 is fed into the housing 11 of the recording device 10 through a feed opening 13. The feed tray 12 is configured to be openable and closable relative to the feed opening 13. The feed tray 12 of this embodiment has a three-tiered structure and is configured to be extendable and scalable.

[0009] At the front of the housing 11, in the +Y direction, there are provided an outlet 15 through which the medium M recorded by the recording device 10 is discharged, and an outlet tray 16 on which the recorded medium M discharged from the outlet 15 is stacked. An openable cover 17 is provided at the bottom front of the housing 11 of the recording device 10, and the outlet tray 16 housed inside the housing 11 of the recording device 10 is covered by the closed cover 17. Note that the outlet tray 16 in this embodiment has a three-tiered structure and is configured to be extendable and retractable.

[0010] An operation panel 18 is provided on the top surface 11A of the housing 11. The operation panel 18 has an operation unit 19 such as a power button and a display unit 20 such as an LCD display. Menus and various messages are displayed on the display unit 20. The recording device 10 is communicably connected to a host device (not shown), and upon receiving recording data from the host device, the recording device 10 feeds a medium M set in a feed tray 12 using a feeding mechanism (not shown), and performs a recording operation to record an image based on the recording data on the fed medium M.

[0011] The housing 11 contains a recording head 21 as a recording unit that ejects liquid such as ink onto the medium M, and a carriage 22 on which the recording head 21 is mounted. The carriage 22 moves back and forth along the X-axis (scanning direction) that is perpendicular to the transport direction of the medium M. As the carriage 22 moves along the scanning direction, the recording head 21 alternates between a recording operation in which the recording head 21 ejects droplets to perform one pass of recording and a transport operation in which the medium M is transported to the next recording position, thereby recording images, documents, etc. on the medium M or a sheet MB of a roll-shaped medium MA, which will be described later.

[0012] Also provided within the housing 11 is a mounting section (both not shown) into which a liquid container such as an ink cartridge that contains a liquid used for recording can be detachably mounted. The liquid container may be an off-carriage type that is disposed at a position separate from the carriage 22, or an on-carriage type that the liquid container is detachably mounted on the carriage 22. Also, the recording device 10 is not limited to a serial recording system, but may be a line recording system in which the recording head 21 is an elongated line head disposed across the entire maximum width of the medium M and can eject droplets simultaneously across the entire width of the medium M.

[0013] The recording device 10 of this embodiment is configured to be able to record on a roll medium MA, which is a long sheet MB wound up in a roll. Specifically, as shown in Fig. 2, a medium feeding device 100 that stores the roll medium MA and feeds the sheet MB is disposed at the rear, in the -Y direction, of the housing 11 of the recording device 10. The roll medium MA set in the medium feeding device 100 is fed into the housing 11 as a sheet MB, and an image based on recording data is recorded on the fed sheet MB. The medium feeding device 100 may be configured to be detachable from the recording device 10, or may be configured to be integrated with the recording device 10. The configuration of the medium feeding device 100 will be described below.

[0014] As shown in Figures 2, 3 and 4, the medium feeding device 100 comprises a storage section 110 that stores a rolled medium MA, a pair of rollers 120 that are arranged in the storage section 110 and spaced a predetermined distance apart in the Y-axis direction, and an endless circular feeding belt 140 that is looped around the pair of rollers 120 and rotates in conjunction with the rotation of the pair of rollers 120.

[0015] The medium feeding device 100 includes a housing 101, and the storage unit 110 is disposed within the housing 101. The rolled medium MA is stored within the storage unit 110 with the longitudinal direction (roll axis direction) of the rolled medium MA aligned along the X-axis.

[0016] The pair of rollers 120 is disposed at the bottom of the storage section 110. In this embodiment, the pair of rollers 120 is composed of a first roller 120a and a second roller 120b. The diameter of the first roller 120a and the diameter of the second roller 120b are the same. The axes of the first roller 120a and the second roller 120b are disposed in a direction along the X axis. The first roller 120a is disposed in the +Y direction of the second roller 120b. Multiple first rollers 120a are disposed in the axial direction. Multiple second rollers 120b are similarly disposed in the axial direction. The first roller 120a and the second roller 120b are disposed horizontally across the axial center of the supported rolled medium MA (FIG. 5A).

[0017] The feed belt 140 is made of rubber and is stretched between the first roller 120a and the second roller 120b. The feed belt 140 comes into contact with the outer surface of the rolled medium MA and supports the rolled medium MA. The feed belt 140 is not limited to being made of rubber, and any material having surface friction and flexibility equivalent to that of rubber may be used. At least one of the first roller 120a and the second roller 120b is a drive roller, and the feed belt 140 is driven to rotate by the drive roller, thereby rotating the rolled medium MA. In this embodiment, both the first roller 120a and the second roller 120b are drive rollers. The sheet MB, which is fed out as the rolled medium MA rotates, is fed into the housing 11 of the recording device 10.

[0018] The storage unit 110 also has edge guides 112 that can clamp the longitudinal ends of the stored rolled medium MA. The edge guides 112 are provided on the -X and +X sides of the lower part of the storage unit 110. The edge guides 112 have guide portions that are convex in the +Z direction from the lower part of the storage unit 110. The edge guides 112 contact both longitudinal ends of the rolled medium MA supported by the feed belt 140 so as to clamp the rolled medium MA, thereby determining the support position of the rolled medium MA. The edge guide 112 is movable in the direction along the X axis, and can accommodate various sizes of the rolled medium MA in the longitudinal direction that it supports.

[0019] Additionally, a contact member 130 is disposed in the storage section 110 of the medium feeding device 100, which contacts the outer peripheral surface of the rolled medium MA supported by the feed belt 140. The contact member 130 contacts the outer peripheral surface of the rolled medium MA from a position opposite to the position where the outer peripheral surface of the rolled medium MA is supported by the feed belt 140. In this embodiment, the outer peripheral surface of the lower part of the rolled medium MA is supported by the feed belt 140, and the outer peripheral surface of the upper part of the rolled medium MA contacts the contact member 130 (FIG. 5A).

[0020] The contact member 130 is displaceable in the vertical direction and presses down on the rolled medium MA stored in the storage unit 110 from above. The contact member 130 is a member that protrudes in the +Y direction from the -Y direction end of the housing 101. The contact member 130 has an arc-shaped (arch-shaped) main body 131 that follows the outer shape of the stored rolled medium MA. This prevents interference between the contact member 130 and the rolled medium MA when the contact member 130 presses down on the rolled medium MA from above. Furthermore, multiple contact members 130 (three in this embodiment) are provided along the X axis. The contact members 130 are arranged at equal intervals. This allows the rolled medium MA to be reliably pressed down.

[0021] 4, 5A, and 5B, the -Y end on one end side of the contact member 130 (main body portion 131) is provided with a rotation shaft 132 extending in the direction along the X axis. The +Y end on the other end side of the contact member 130 (main body portion 131) rotates around the rotation shaft 132 as the rotation center, displaces in the vertical direction, and comes into contact with the rolled medium MA.

[0022] The contact member 130 displaces in response to changes in the outer diameter of the rolled medium MA, contacting the outer circumferential surface of the rolled medium MA. The contact member 130 (main body 131) is provided with an applying member 133 that applies a downward force. The applying member 133 is a torsion spring, coil spring, or the like. In this embodiment, the applying member 133 is a torsion spring (double torsion spring), with its fixed end fixed to the -Y direction end of the housing 101 and its free end located on the upper surface of the main body 131. This applies a downward force to the contact member 130 (main body 131), enabling the rolled medium MA to be reliably held in place in response to changes in the outer diameter of the rolled medium MA. Furthermore, the contact member 130 biases the rolled medium MA downward, increasing pressure on the feed belt 140 and ensuring rotational force on the rolled medium MA.

[0023] The main body 131 is provided with rollers 135 at the end in the +Y direction. In this embodiment, two rollers 135 are provided. The rollers 135 are held by holders 134, which are disposed at the tip of the main body 131. The rollers 135 have shafts extending in the direction along the X axis and are driven to rotate. The contact member 130 presses the rollers 135 downward while they are in contact with the outer circumferential surface of the rolled medium MA, thereby preventing damage to the rolled medium MA.

[0024] The contact members 130 are connected by a shaft 136. A through hole 137 is provided on the end side of the main body 131 in the +Y direction, and the three contact members 130 are connected by passing a rod-shaped shaft 136 through the through hole 137. This allows the three contact members 130 to operate as a unit, so that, for example, when storing a rolled medium MA in the storage unit 110, all of the contact members 130 can be easily displaced upward, improving operability. In this embodiment, the contact member 130 is applied with a downward force by the applying member 133, but this configuration is not limited to this, and the contact member 130 may be configured to be displaceable downward by its own weight, or a weight may be provided to allow the contact member 130 to be displaceable downward.

[0025] 5A and 5B, when the pair of rollers 120 are driven to rotate in a clockwise direction, the feed belt 140 is driven to rotate in a clockwise direction in conjunction with this. As a result, the roll medium MA supported by the feed belt 140 rotates counterclockwise, and the sheet MB unwound from the roll medium MA is fed into the housing 11 of the recording device 10. Here, for example, if the pair of rollers 120 directly supports the rolled medium MA, the first and second rollers 120a, 120b come into direct contact with the outer circumferential surface of the rolled medium MA, which may leave roller marks on the rolled medium MA. For example, if special paper with an ink-receiving layer on its surface is used as the sheet MB, the ink-receiving layer will be crushed in the areas where the first and second rollers 120a, 120b come into contact, resulting in a difference in reflectivity compared to areas not in contact with the first and second rollers 120a, 120b, and degraded image quality. Therefore, in this embodiment, the feed belt 140 is used to make surface contact with the outer peripheral surface of the rolled medium MA. In other words, the contact area supporting the rolled medium MA can be increased. This ensures a rotational force (conveying force) on the rolled medium MA while reducing the contact pressure on the rolled medium MA, making it possible to suppress the occurrence of roller marks on the rolled medium MA. Furthermore, image quality can be improved by recording on a sheet MB that is free of roller marks, etc.

[0026] Furthermore, in the medium feeding device 100, the rolled medium MA is supported in the region of the feed belt 140 between the pair of rollers 120 (between the first roller 120a and the second roller 120b), and is not supported at the positions of the pair of rollers 120 (the first roller 120a and the second roller 120b) on the feed belt 140. In other words, the rolled medium MA is supported in a portion of the feed belt 140 other than the portion where the feed belt 140 and the pair of rollers 120 (the first roller 120a and the second roller 120b) contact each other. The portion other than the portion where the feed belt 140 and the pair of rollers 120 (the first roller 120a and the second roller 120b) contact each other is a portion (region) where the stretched feed belt 140 can obtain a greater elastic force in the direction along the Z axis. In this embodiment, in both a state where there is a large amount of rolled medium MA remaining (FIG. 5A) and a state where the roll diameter of the rolled medium MA has become smaller as the rolled medium MA has been used (fed) further (FIG. 5B), the rolled medium MA is supported in the area between the pair of rollers 120 on the feed belt 140. This makes it less likely that the rolled medium MA supported by the feed belt 140 will be subjected to the pressure of the pair of rollers 120, thereby further reducing the occurrence of roller marks on the supported rolled medium MA.

[0027] The dimension of the pair of rollers 120 along the Y axis (the distance between the first roller 120a and the second roller 120b) can be set appropriately depending on the size and weight of the rolled medium MA being used. The dimension of the feed belt 140 along the X axis can be set appropriately and may be shorter or longer than the dimension of the rolled medium MA being used along the X axis. The feed belt 140 may be a single belt, or multiple belts may be arranged in parallel along the X axis. Further, a tension roller for applying tension to the feeding belt 140 may be provided.

[0028] 2. Second embodiment Next, a second embodiment will be described. Note that the same components as those in the first embodiment are given the same reference numerals, and redundant explanations will be omitted.

[0029] As shown in FIGS. 6A and 6B, in the medium feeding device 100A of this embodiment, the pair of rollers 120 can be displaced between a first position Pt1 and a second position Pt2 that is higher than the first position Pt1. Furthermore, the displacement from the first position Pt1 to the second position Pt2 is gradual. In this embodiment, as the weight of the rolled medium MA decreases due to usage, the pair of rollers 120 gradually displace upward from the first position Pt1. Springs are provided on the shafts of the first roller 120a and the second roller 120b to urge the first roller 120a and the second roller 120b upward. As the weight of the rolled medium MA supported by the feed belt 140 decreases, the spring force displaces the first roller 120a and the second roller 120b upward. Furthermore, the springs enable the pair of rollers 120 to gradually displace from the first position Pt1 to the second position Pt2. The positions of the pair of rollers 120 may be displaced using a mechanism such as a rack and pinion.

[0030] The medium feeding device 100A also includes rollers 160 that contact the sheet MB from above as it is drawn from the roll medium MA stored in the storage unit 110. The rollers 160 form a feeding path for feeding the sheet MB into the housing 11 of the recording device 10. The angle θ formed by the horizontal plane and a line connecting the position where the sheet MB is peeled from the roll medium MA (peeling position Ps1) and the position where the roller 160 contacts the sheet MB (contact position Ps2) remains constant regardless of changes in the outer diameter of the roll medium MA. Note that a constant angle θ means that a difference of a few degrees is within the allowable range. The pair of rollers 120 displace upward as the roll diameter of the roll medium MA decreases. In conjunction with this, the roll medium MA also moves upward. Therefore, the peeling position Ps1 remains at a substantially constant position. The rollers 160 are fixed in place. This maintains the angle θ substantially constant regardless of the state of use of the roll medium MA. Therefore, the sheet MB can be fed in a stable manner.

[0031] The medium feeding device 100A also includes a tension roller 150 that applies tension to the feed belt 140 in one of two opposing regions of the feed belt 140 located between the pair of rollers 120, opposite the region that supports the outer circumferential surface of the rolled medium MA. The tension roller 150 is located between the first roller 120a and the second roller 120b and contacts the inner circumferential surface 140a of the wound feed belt 140. The tension roller 150 has an axis aligned along the X-axis. The position of the tension roller 150 is fixed. The diameter of the tension roller 150 is smaller than the diameters of the first roller 120a and the second roller 120b. At the first position Pt1, the tension roller 150 is positioned slightly below the pair of rollers 120 (FIG. 6A). This ensures that tension is applied to the feed belt 140. Meanwhile, at the second position Pt2, the pair of rollers 120 are displaced upward relative to the tension roller 150 (FIG. 6B). This increases the tension of the feed belt 140 by the tension roller 150, increasing the rotational force (conveying force) of the feed belt 140 on the rolled medium MA and ensuring that the lightweight rolled medium MA rotates reliably. Note that the second position Pt2 of the pair of rollers 120 in FIG. 6B is just one example; as the rolled medium MA continues to be used and becomes even lighter, the second position Pt2 will be displaced further upward.

[0032] In this embodiment, the tension roller 150 is rotated to rotate the feed belt 140. The first roller 120a and the second roller 120b are rotated by the rotation of the feed belt 140. The tension roller 150 does not move relative to the pair of rollers 120, so it can apply a stable driving force to the feed belt 140, and the feed belt 140 can be rotated stably.

[0033] Furthermore, the distance between the pair of rollers 120 at the second position Pt2 is smaller than the distance between the pair of rollers 120 at the first position Pt1. Specifically, the distance between the first roller 120a and the second roller 120b along the Y axis at the second position Pt2 is smaller than the distance between the first roller 120a and the second roller 120b along the Y axis at the first position Pt1. The shafts of the first roller 120a and the second roller 120b are fitted into guide members arranged to face obliquely upward so as to shorten the distance between the first roller 120a and the second roller 120b, and the first roller 120a and the second roller 120b are displaced obliquely upward by spring force. At the second position Pt2, the distance between the pair of rollers 120 is narrowed, and tension is maintained on the feed belt 140 by the tension roller 150. This restricts the range of movement of the rolled medium MA on the feed belt 140 in the direction along the Y axis at the second position Pt2, making it possible to suppress flapping of the rolled medium MA.

[0034] 6A, at the first position Pt1, the outer peripheral surface of the rolled medium MA is supported in the area between the pair of rollers 120 on the feed belt 140. In other words, an unused or lightly used rolled medium MA is supported in a portion (area) of the feed belt 140 other than the portion where the feed belt 140 and the pair of rollers 120 (first roller 120a, second roller 120b) contact each other, that is, in a portion (area) that can obtain the elastic force of the stretched feed belt 140. This makes it possible to prevent roller marks from being formed on the rolled medium MA. 6B, at the second position Pt2, the outer circumferential surface of the rolled medium MA is supported by the pair of rollers 120 on the feed belt 140 and the area between them. That is, as the rolled medium MA is used (fed) and its roll diameter becomes smaller (lighter), it is supported by a portion (area) of the feed belt 140 that includes the contact area between the feed belt 140 and the pair of rollers 120 (first roller 120a, second roller 120b). This restricts the range of movement of the rolled medium MA on the feed belt 140 in the direction along the Y axis at the second position Pt2, thereby reliably suppressing flapping of the rolled medium MA. Note that, since the rolled medium MA with a smaller roll diameter is lighter in weight, the impact of roller marks from the pair of rollers 120 is minimal. Note that, at the second position Pt2, the outer circumferential surface of the rolled medium MA may not be supported by the pair of rollers 120 on the feed belt 140, but may be supported only by the area between the pair of rollers 120. Even in this configuration, the distance between the pair of rollers 120 in the Y-axis direction is narrower than at the first position Pt1, so that flapping of the rolled medium MA on the feed belt 140 can be suppressed.

[0035] Furthermore, the contact member 130 of this embodiment contacts the outer peripheral surface of the rolled medium MA at a constant position regardless of changes in the outer diameter of the rolled medium MA. The contact member 130 contacts the outer peripheral surface of the upper part of the rolled medium MA. The pair of rollers 120 displace upward as the roll diameter of the rolled medium MA becomes smaller. The rolled medium MA displaces upward in conjunction with the upward displacement of the pair of rollers 120. Therefore, the position of the roller 135 of the contact member 130 in the direction along the Z axis, which contacts the outer peripheral surface of the rolled medium MA, remains approximately constant. This stabilizes the contact state of the contact member 130 with the rolled medium MA, allowing the rolled medium MA to be biased with a constant pressure.

[0036] As described above, according to this embodiment, the pair of rollers 120 are displaced from the first position Pt1 to the second position Pt2 depending on the usage state of the rolled medium MA, so that the positional relationship between the rolled medium MA and the feeding path of the sheet MB unwound from the rolled medium MA is maintained constant, and the sheet MB can be fed stably. In this embodiment, the pair of rollers 120 are displaced upward so that the distance between them at the second position Pt2 is narrower than the distance between them at the first position Pt1, but this configuration is not limiting. For example, the tension roller 150 may be omitted, and the distance between the pair of rollers 120 may be equal between the first position Pt1 and the second position Pt2. In this case, one of the pair of rollers 120 is used as a drive roller. Even in this case, the feeding path of the sheet MB can be maintained constant. [Explanation of symbols]

[0037] 10...recording device, 11...housing, 21...recording head, 22...carriage, 100, 100A...medium feeding device, 101...housing, 110...storage section, 120...pair of rollers, 120a...first roller, 120b...second roller, 130...contact member, 131...main body, 132...rotating shaft, 133...applying member, 134...holder, 135...roller, 140...feed belt, 140a...inner surface, 150...tension roller, 160...roller, MA...rolled medium, MB...sheet, Pt1...first position, Pt2...second position, Ps1...peel position, Ps2...contact position.

Claims

1. a storage section for storing a roll-shaped medium in which sheets are wound and stacked; A pair of rollers arranged in the storage section and spaced apart by a predetermined distance; an endless circular feeding belt that is wound around the pair of rollers and rotates in accordance with the rotation of the pair of rollers; the feeding belt supports an outer peripheral surface of the rolled medium and is driven to rotate the rolled medium to feed the sheet; A medium feeding device characterized in that the storage section has a contact member that contacts the outer surface of the rolled medium from a position opposite to the position where the outer surface of the rolled medium is supported by the feeding belt.

2. 2. The media feeding device of claim 1, The rolled medium is supported in a region between the pair of rollers of the feeding belt, A medium feeding device, characterized in that the rolled medium is not supported at the position of the pair of rollers on the feeding belt.

3. 2. The media feeding device of claim 1, The medium feeding device, characterized in that the contact member displaces in accordance with changes in the outer diameter of the rolled medium and comes into contact with the outer peripheral surface of the rolled medium.

4. 2. The media feeding device of claim 1, 10. A medium feeding device, comprising: a pair of rollers that are displaceable between a first position and a second position that is higher than the first position.

5. 5. The medium feeding device of claim 4, A medium feeding device characterized by having a tension roller that applies tension to the feeding belt in one of two opposing areas of the feeding belt arranged between the pair of rollers, the area opposite the area that supports the outer surface of the rolled medium.

6. 6. The medium feeding device of claim 5, The medium feeding device, characterized in that the feeding belt is rotated by the tension roller being rotated.

7. 7. The medium feeding device according to claim 4, A medium feeding device, wherein the distance between the pair of rollers at the second position is smaller than the distance between the pair of rollers at the first position.

8. The medium feeding device according to any one of claims 4 to 7, At the first position, the outer peripheral surface of the rolled medium is supported in a region of the feed belt between the pair of rollers; A medium feeding device, characterized in that, at the second position, the outer peripheral surface of the rolled medium is supported by the positions of the pair of rollers on the feeding belt and the area therebetween.

9. 9. The medium feeding device according to claim 4, The medium feeding device, wherein the displacement from the first position to the second position is stepwise.

10. 10. The medium feeding device according to claim 4, the storage section has a contact member that contacts the outer peripheral surface of the rolled medium from a position opposite to a position where the outer peripheral surface of the rolled medium is supported by the feed belt, A medium feeding device, characterized in that the contact member contacts the outer peripheral surface of the rolled medium at a constant position regardless of changes in the outer diameter of the rolled medium.

11. 11. The medium feeding device according to claim 4, a roller that contacts the sheet drawn from the roll medium stored in the storage unit from above, A medium feeding device characterized in that the angle formed by the line connecting the position where the sheet is peeled off from the rolled medium and the position where the roller contacts the sheet, and the horizontal plane, is maintained within an acceptable range of a few degrees of angle difference, regardless of changes in the outer diameter of the rolled medium.

12. A medium feeding device according to any one of claims 1 to 11; a recording unit that performs recording on the sheet fed from the medium feeding device.

13. A storage section for storing a roll-shaped medium in which sheets are wound together; A pair of rollers arranged in the storage section and spaced apart by a predetermined distance; an endless circular feeding belt that is wound around the pair of rollers and rotates in accordance with the rotation of the pair of rollers; the feeding belt supports an outer peripheral surface of the rolled medium and is driven to rotate the rolled medium to feed the sheet; 10. A medium feeding device, comprising: a pair of rollers that are displaceable between a first position and a second position that is higher than the first position.

Images