JP2018122433A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer in which a medium unwound from a roll medium can be easily placed on a platen.SOLUTION: A printer 10 includes: a first link mechanism 55 which causes a pinch roller 23 to approach and separate with respect to a grid roller 22; a second link mechanism 60 which permits and inhibits rotation of a roll medium 5; and a loading lever 50 which is connected to the first link mechanism 55 and the second link mechanism 60, in which the medium 5A is sandwiched with approach of the pinch roller 23 to the grid roller 22 when moving from the reference position A0 to a first position A1, a medium 5A is released with separation of the pinch roller 23 to the grid roller 22 when moving from the first position A1 to the reference position A0, rotation of the roll medium 5 is inhibited when moving from the reference position A0 to a second position A2, and rotation of the roll medium 5 is released when moving from the second position A2 to the reference position A0.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a printer.

  2. Description of the Related Art Conventionally, printers that include an ink head that ejects ink onto a medium, a cutting head that cuts the medium, and a transport device that transports a long medium are known. As a printer, for example, a roll-to-roll type printer in which a roll medium formed by winding a long medium in a roll shape is conveyed while being unwound and the conveyed medium is wound in a roll shape is known. (For example, refer to Patent Document 1).

  In recent years, development of large-scale printers that can use relatively large-sized media has been progressing. In such a large-sized printer, an operator needs to place the medium on the printer platen in advance and align the medium before working with the printer. If the media is not placed at an appropriate position, the media may be transported at an angle, and printing by the ink head or cutting by the cutting head may not be performed properly. Requires the media to be carefully placed on the platen.

JP 2011-11889 A

  By the way, when the media unrolled from the roll media is placed on the platen, the leading end of the media is pulled out to the front of the printer through the platen, and the loading lever is operated with the media pulled forward. As a result, the pinch roller and the grid roller sandwich the medium, and the medium is placed on the platen. At this time, since the roll medium is normally mounted on the printer so as to freely rotate, the roll medium rotates when the medium is pulled forward. To align the media with tension applied to the media, an operator located in front of the printer extended the arm behind the printer and pressed the roll media to prevent the roll media from rotating. The operability is bad, and depending on the physique of the operator and the size of the printer, it may be difficult to extend the arm.

  The present invention has been made in view of such a point, and an object thereof is to provide a printer capable of easily placing a medium unwound from a roll medium on a platen.

  The printer according to the present invention includes a media support device that supports a roll media that is formed by winding a long medium and extends in the main scanning direction, and a sub-scan that is orthogonal to the main scanning direction with respect to the media support device. A platen on which the medium unwound from the roll medium is placed; a grid roller that is provided on the platen and that conveys the medium in the sub-scanning direction; and A pinch roller disposed above and holding the medium; a first link mechanism for moving the pinch roller toward and away from the grid roller; a second link mechanism for allowing and preventing rotation of the roll medium; It is arranged on the opposite side of the media support device with respect to the grid roller, and the first link mechanism and the front When the pinch roller is connected to the second link mechanism and moved from the reference position to the first position, the pinch roller approaches the grid roller, and the medium is sandwiched between the pinch roller and the grid roller. The pinch roller moves away from the grid roller when the medium moves from the reference position to the second position, and the roll medium is prevented from rotating when moved from the reference position to the second position. And a loading lever that releases the prevention of rotation of the roll media when moved from the position to the reference position or the first position.

  According to the printer of the present invention, when the loading lever moves from the reference position to the second position, the roll medium is prevented from rotating, and when the loading lever moves from the second position to the reference position or the first position, the roll medium is stopped. The prevention of rotation is released. For this reason, when the medium is placed on the platen, first, the medium unwound from the roll medium is drawn downstream (for example, forward) from the platen, and the loading lever is moved from the reference position to the second position. Let Thereby, rotation of the roll media is prevented. In this state, the medium on the platen is moved in the main scanning direction (for example, in the left-right direction), aligned, and then pulled to pull the medium. Thereafter, by moving the loading lever from the second position to the first position, the medium is sandwiched between the pinch roller and the grid roller while the medium is tensioned and the medium is placed at an appropriate position. Thus, the operator does not need to reach the media support device when aligning the media, and can place the media on the platen appropriately by a simple operation of operating the loading lever. . As a result, the medium is conveyed in a state where skew is suppressed.

  According to the present invention, it is possible to provide a printer capable of easily placing a medium unwound from a roll medium on a platen.

1 is a front view of a printer according to an embodiment. It is sectional drawing which follows the II-II line | wire in FIG. It is the back perspective view which looked at some printers concerning one embodiment from the back and upper direction. It is the back perspective view which looked at some printers concerning one embodiment from the back and upper direction. 1 is a block diagram of a printer according to an embodiment. It is a side view which shows the position of the loading lever which concerns on one Embodiment. It is a side view which shows the 2nd link mechanism which concerns on one Embodiment, and its surrounding structure, and is a side view which shows the state in which rotation of a roll media is accept | permitted. It is a side view which shows the 2nd link mechanism which concerns on one Embodiment, and its surrounding structure, and is a side view which shows the state in which rotation of a roll media is blocked | prevented.

  Hereinafter, a printer according to an embodiment will be described with reference to the drawings. The printer according to the present embodiment is an inkjet printer 10 (hereinafter referred to as a printer 10) that performs printing on a long medium (for example, a belt-shaped medium). It should be noted that the embodiments described herein are not intended to limit the present invention. Moreover, the same code | symbol is attached | subjected to the member and site | part which show | plays the same effect | action, and the overlapping description is abbreviate | omitted or simplified suitably.

  FIG. 1 is a front view of a printer 10 according to the present embodiment. FIG. 2 is a sectional view taken along line II-II in FIG. FIG. 3 is a rear perspective view of a part of the printer 10 as viewed from the back and information, and shows a state in which the roll medium 5 is not disposed in the printer 10. FIG. 4 is a rear perspective view of a part of the printer 10 as viewed from the back and information, and shows a state in which the roll medium 5 is disposed in the printer 10. The printer 10 is for printing on the medium 5 </ b> A unwound from the roll medium 5.

  In the following description, left, right, top, and bottom mean left, right, top, and bottom, respectively, as viewed from the operator in front of the printer 10. Further, the direction approaching the worker from the printer 10 is defined as the front, and the direction away from the operator is defined as the rear. Reference numerals F, Rr, L, R, U, and D in the drawings represent front, rear, left, right, upper, and lower, respectively. The symbol Y in the drawing represents the main scanning direction. In the present embodiment, the main scanning direction Y is the left-right direction. The main scanning direction Y is the width direction of the medium 5A. A symbol X in the drawing indicates a sub-scanning direction. The sub-scanning direction X is a direction that intersects the main scanning direction Y (for example, a direction that intersects perpendicularly in plan view). In the present embodiment, the sub-scanning direction X is the front-rear direction. The sub-scanning direction X is the longitudinal direction of the medium 5A. However, the above direction is merely determined for convenience and should not be interpreted in a limited manner.

  The medium 5A of this embodiment is plain paper. The medium 5A is not limited to recording paper as long as it has a shape that is wound around a supply shaft 32 described later and can be wound around a winding shaft 48 described later. The medium 5A may be a sheet or film made of a resin such as polyvinyl chloride or polyester, a cloth such as a woven fabric or a non-woven fabric, or other media in addition to paper such as plain paper or inkjet printing paper. The roll medium 5 is formed by winding a long medium 5A. The roll medium 5 extends in the main scanning direction Y.

  As shown in FIG. 1, the printer 10 includes a main body 12, a left side cover 13L and a right side cover 13R, a platen 20, a grid roller 22 (see FIG. 2), and a pinch roller 23 (see FIG. 2). The guide rail 24, the belt 25, the carriage 26 (see FIG. 2), the ink head 27, the cutting head 28, the media support device 30, and the winding device 44 are provided.

  As shown in FIG. 1, the main body 12 is supported by a left stand 15L and a right stand 15R. The main body 12 extends in the main scanning direction Y. The left side cover 13 </ b> L is provided at the left end of the main body 12. The right side cover 13 </ b> R is provided at the right end of the main body 12. The main body 12 is provided with a central wall 14 extending in the vertical direction. The central wall 14 extends in the main scanning direction Y. The central wall 14 connects the left side cover 13L and the right side cover 13R.

  As shown in FIG. 1, the main body 12 is provided with a platen 20 on which the media 5 </ b> A unwound from the roll media 5 is placed. The platen 20 extends in the main scanning direction Y. The platen 20 is disposed downstream of the media support device 30 in the sub-scanning direction X. The platen 20 is disposed in front of the media support device 30. In the present embodiment, the media support device 30 side is the upstream side in the sub-scanning direction X, and the winding device 44 side is the downstream side in the sub-scanning direction X.

  As shown in FIG. 2, the platen 20 is provided with a cylindrical grid roller 22. The grid roller 22 is embedded in the platen 20 with its upper surface exposed. The grid roller 22 is driven by a feed motor (not shown). The grid roller 22 moves the media 5A unwound from the roll media 5 in the sub-scanning direction X.

  A pinch roller 23 is disposed above the grid roller 22. The pinch roller 23 faces the grid roller 22. The pinch roller 23 is configured such that the vertical position can be set according to the thickness of the medium 5A. The pinch roller 23 presses the media 5A. The medium 5 </ b> A is sandwiched between the pinch roller 23 and the grid roller 22. The grid roller 22 and the pinch roller 23 are configured to be able to convey the medium 5A in the sub-scanning direction X while holding the medium 5A. In FIG. 2, only one grid roller 22 and one pinch roller 23 are illustrated, but actually, a plurality of pairs of grid rollers 22 and pinch rollers 23 are provided.

  As shown in FIG. 1, the guide rail 24 is provided on the central wall 14. The guide rail 24 is disposed above the platen 20. The guide rail 24 is disposed in parallel with the platen 20. The guide rail 24 extends in the main scanning direction Y. As shown in FIG. 2, a carriage 26 is engaged with the guide rail 24.

  As shown in FIG. 1, the belt 25 is disposed in parallel to the wall surface of the central wall 14. The belt 25 extends in the main scanning direction Y. The belt 25 is an endless belt. Pulleys 16 </ b> A and 16 </ b> B are wound around the right end and the left end of the belt 25. One pulley 16A is connected to a carriage motor 17 that drives the pulley 16A. When the carriage motor 17 rotates, the pulley 16A rotates and the belt 25 travels in the main scanning direction Y.

  As shown in FIG. 2, the carriage 26 is fixed to the belt 25. As the belt 25 travels, the carriage 26 moves in the main scanning direction Y along the guide rail 24.

  As shown in FIG. 2, the ink head 27 is disposed above the platen 20. The ink head 27 includes a nozzle (not shown) that ejects ink onto the medium 5A. The ink head 27 is provided on the carriage 26. When the carriage 26 moves in the main scanning direction Y, the ink head 27 also moves in the main scanning direction Y. The ink head 27 ejects ink toward the medium 5A while moving in the main scanning direction Y.

  As shown in FIG. 1, the cutting head 28 is disposed above the platen 20. The cutting head 28 includes a cutter (not shown) for cutting the media 5A. The cutting head 28 is provided on the carriage 26. When the carriage 26 moves in the main scanning direction Y, the cutting head 28 also moves in the main scanning direction Y. In this embodiment, the cutting head 28 and the ink head 27 are mounted on the same carriage 26. However, the cutting head 28 and the ink head 27 may be mounted on separate carriages and move independently of each other. .

  The media support device 30 supports the roll media 5. The media support device 30 is detachably provided with a supply shaft 32 (see FIG. 4). As shown in FIG. 3, the media support device 30 includes a first holder 33 and a second holder 34.

  As shown in FIG. 2, the supply shaft 32 is disposed below the platen 20. The supply shaft 32 is disposed behind the platen 20. The supply shaft 32 is formed in a cylindrical shape extending in the left-right direction. A belt-shaped medium 5 </ b> A is wound around the supply shaft 32. The roll medium 5 is formed by the supply shaft 32 and the medium 5A. As shown in FIG. 4, the right end portion of the roll medium 5, that is, the right end portion of the supply shaft 32 is rotatably supported by the first holder 33. The left end portion of the roll medium 5, that is, the left end portion of the supply shaft 32 is rotatably supported by the second holder 34. The roll medium 5, that is, the supply shaft 32 is detachably provided on the first holder 33 and the second holder 34.

  As shown in FIG. 3, the first holder 33 and the second holder 34 are slidably provided on a slide bar 70 extending in the main scanning direction Y. The first holder 33 and the second holder 34 can change the position in the main scanning direction Y along the slide bar 70. The slide bar 70 is supported by a left bracket 18L provided on the left stand 15L and a right bracket 18R provided on the right stand 15R. The first holder 33 and the second holder 34 are arranged behind the grid roller 22. The first holder 33 is disposed on the right side of the second holder 34.

  As shown in FIG. 7, the first holder 33 is provided with a rotation shaft 35 extending in the main scanning direction Y. The rotation shaft 35 extends in the direction opposite to the second holder 34 with respect to the first holder 33. The rotation shaft 35 extends rightward from the first holder 33. The rotating shaft 35 rotates together with the roll media 5. The axis of the rotation shaft 35 and the axis of the supply shaft 32 are the same. The axis of the rotation shaft 35 and the axis of the supply shaft 32 may be deviated. The rotating shaft 35 is provided with a protruding portion 36 extending in the radial direction. In the present embodiment, four protrusions 36 are provided, but the number of protrusions 36 is not particularly limited.

  As shown in FIG. 1, the printer 10 includes a loading lever 50. The loading lever 50 is provided on the main body 12. The loading lever 50 is provided on the left side of the right side cover 13R. The loading lever 50 is provided so as to protrude from the platen 20. As shown in FIG. 2, the loading lever 50 is disposed on the opposite side of the media support device 30 with respect to the grid roller 22. The loading lever 50 is disposed in front of the grid roller 22. As shown in FIG. 5, the loading lever 50 is connected to a first link mechanism 55 and a second link mechanism 60, which will be described later. As shown in FIG. 6, the loading lever 50 is configured to be movable between a reference position A0, a first position A1, and a second position A2. The first position A1 is located on the opposite side of the second position A2 with respect to the reference position A0. That is, the first position A1 is located below the reference position A0, and the second position A2 is located above the reference position A0. The position of the loading lever 50 is changed by the operator. When the loading lever 50 is located at the reference position A0, the medium 5A is not sandwiched between the pinch roller 23 and the grid roller 22, and the roll medium 5 is allowed to rotate.

  As shown in FIG. 5, the first link mechanism 55 is connected to the pinch roller 23. The first link mechanism 55 moves the pinch roller 23 in the vertical direction. The first link mechanism 55 moves the pinch roller 23 toward and away from the grid roller 22. In addition, since the structure of the 1st link mechanism 55 can employ | adopt a conventionally well-known thing suitably, the description is abbreviate | omitted.

  As shown in FIG. 6, when the loading lever 50 moves from the reference position A0 to the first position A1, the pinch roller 23 approaches the grid roller 22, and the medium 5A is sandwiched between the pinch roller 23 and the grid roller 22. It is configured as follows. On the other hand, when the loading lever 50 moves from the first position A1 to the reference position A0, the pinch roller 23 is separated from the grid roller 22 and the medium 5A is released.

  The second link mechanism 60 allows and prevents the rotation of the roll media 5. Here, the roll media 5 can rotate in the R1 direction (see FIG. 7) in which the media 5A is conveyed toward the platen 20, and in the R2 direction (see FIG. 7) which is opposite to the R1 direction. The second link mechanism 60 has a function of preventing the roll media 5 from rotating in the R1 direction and the R2 direction. As shown in FIG. 5, the second link mechanism 60 includes a stopper 62, a support shaft 64, and a cable 66.

  The cable 66 is connected to the loading lever 50 and the stopper 62. Tension is applied to the cable 66 when the loading lever 50 moves from the reference position A0 (see FIG. 6) to the second position A2 (see FIG. 6). That is, the cable 66 is pulled. The tension applied to the cable 66 becomes zero when the loading lever 50 moves from the second position A2 to the reference position A0. The tension applied to the cable 66 may be configured to be zero when the loading lever 50 is moved from the second position A2 to the first position A1.

  The support shaft 64 rotatably supports the stopper 62. The support shaft 64 is provided on the first holder 33. The support shaft 64 extends rightward from the first holder 33.

  The stopper 62 is formed in a flat plate shape, for example. The stopper 62 can be rotated between a non-contact position B1 (see FIG. 7) separated from the protrusion 36 provided on the rotating shaft 35 and a contact position B2 (see FIG. 8) in contact with the protrusion 36. It is configured. The stopper 62 prevents the roll media 5 from rotating by contacting the protrusion 36. The stopper 62 allows the roll media 5 to rotate by separating from the protrusion 36. When tension is applied to the cable 66, the stopper 62 rotates toward the contact position B2. When tension is not applied to the cable 66, the stopper 62 is located at the non-contact position B1. The stopper 62 is provided on the first holder 33 via a support shaft 64. For this reason, even if the position of the 1st holder 33 is changed, the relative positional relationship of the stopper 62 and the projection part 36 does not change.

  As shown in FIG. 6, when the loading lever 50 moves from the reference position A0 to the second position A2, the rotation of the roll medium 5 is prevented. In other words, when the loading lever 50 moves from the reference position A0 to the second position A2, the stopper 62 moves to the contact position B2 where it contacts the protrusion 36, thereby preventing the roll media 5 from rotating. Yes. On the other hand, when the loading lever 50 moves from the second position A2 to the reference position A0, the prevention of the rotation of the roll media 5 is released. That is, when the loading lever 50 is moved from the second position A2 to the reference position A0, the stopper 62 is moved to the non-contact position B1 that is separated from the protrusion 36, and the rotation of the roll media 5 is allowed. ing. In addition, when the loading lever 50 moves from the second position A2 to the first position A1, the prevention of the rotation of the roll medium 5 may be released.

  The winding device 44 winds the media 5A conveyed from the platen 20 in a roll shape. A winding shaft 48 is detachably provided on the winding device 44. As shown in FIG. 1, the winding device 44 includes a tension bar 46, support arms 47 </ b> L and 47 </ b> R, and a motor 49.

  As shown in FIG. 2, the tension bar 46 applies tension to a portion of the medium 5 </ b> A located between the platen 20 and the take-up shaft 48. Specifically, the tension bar 46 applies tension to the medium 5A by pushing the medium 5A forward and obliquely downward using its own weight. The tension bar 46 is formed in a cylindrical shape or a columnar shape extending in the left-right direction. The tension bar 46 is disposed in parallel with the take-up shaft 48. The tension bar 46 is disposed below the platen 20. The tension bar 46 is disposed in front of the winding shaft 48. As shown in FIG. 1, the tension bar 46 is swingably supported by the support arms 47L and 47R. The support arm 47L is rotatably provided on a first left side wall 48L provided on the left stand 15L. The support arm 47R is rotatably provided on a first right side wall 48R provided on the right stand 15R.

  As shown in FIG. 2, the winding shaft 48 is disposed below the platen 20. The winding shaft 48 is disposed in front of the platen 20. The winding shaft 48 is formed in a cylindrical shape extending in the left-right direction. The take-up shaft 48 takes up the belt-shaped medium 5 </ b> A conveyed from the platen 20. As shown in FIG. 1, the left end portion of the winding shaft 48 is rotatably supported by a second left side wall 49L disposed on the right side of the first left side wall 48L. The right end portion of the winding shaft 48 is rotatably supported by a second right side wall 49R disposed on the left side of the first right side wall 48R. The second left side wall 49L is provided on the left stand 15L. The second right side wall 49R is provided on the right stand 15R. The winding shaft 48 is detachably provided on the second left side wall 49L and the second right side wall 49R.

  As shown in FIG. 1, the motor 49 is connected to the winding shaft 48. The motor 49 rotates the winding shaft 48. The motor 49 is disposed between the first right side wall 48R and the second right side wall 49R.

  As described above, according to the printer 10 of the present embodiment, when the loading lever 50 moves from the reference position A0 to the second position A2, the rotation of the roll medium 5 is prevented, and the loading lever 50 moves from the second position A2. When the movement to the reference position A0 or the first position A1, the prevention of the rotation of the roll media 5 is released. For this reason, when the medium 5A is placed on the platen 20, first, the medium 5A unwound from the roll medium 5 is drawn downstream (for example, forward) from the platen 20, and the loading lever 50 is moved to the reference position A0. To the second position A2. Thereby, rotation of the roll media 5 is prevented. In this state, the medium 5A on the platen 20 is moved in the main scanning direction Y (for example, in the left-right direction) and aligned, and then the medium 5A is pulled to apply tension to the medium 5A. After that, by moving the loading lever 50 from the second position A2 to the first position A1, the medium 5A is tensioned and the medium 5A is placed at an appropriate position. And sandwiched between grid rollers 22. Thus, the operator does not need to reach to the media support device 30 when positioning the media 5A, and the media 5A is appropriately placed on the platen 20 by a simple operation of operating the loading lever 50. Can be placed. As a result, the medium 5A is conveyed in a state where skewing is suppressed.

  According to the printer 10 of the present embodiment, the second link mechanism 60 includes the stopper 62. When the loading lever 50 moves from the reference position A0 to the second position A2, the stopper 62 moves to the contact position B2 that contacts the protrusion 36 formed on the rotation shaft 35, thereby preventing the roll media 5 from rotating. To do. When the loading lever 50 moves from the second position A2 to the reference position A0, the stopper 62 moves to the non-contact position B1 that moves away from the protrusion 36 and allows the roll media 5 to rotate. In this manner, by providing the stopper 62 that can contact the protrusion 36 and operating the movement of the stopper 62 by the loading lever 50, the rotation of the roll media 5 can be prevented and allowed.

  According to the printer 10 of the present embodiment, when a tension is applied to the cable 66 connected to the loading lever 50 and the stopper 62, the stopper 62 rotates toward the contact position B2. Further, when no tension is applied to the cable 66, the stopper 62 is located at the non-contact position B1. Thus, since the stopper 62 is rotated through the cable 66, the structure is simple and maintenance is easy.

  According to the printer 10 of the present embodiment, the first holder 33 provided with the rotation shaft 35 is configured to be able to change the position in the main scanning direction Y with respect to the platen 20. Since the member that connects the loading lever 50 and the stopper 62 is the cable 66, the movement of the first holder 33 can be flexibly handled.

  According to the printer 10 of the present embodiment, the first position A1 is located on the opposite side of the second position A2 with respect to the reference position A0. Thus, the operator can clearly distinguish between preventing the roll medium 5 from rotating and sandwiching the medium 5A between the pinch roller 23 and the grid roller 22.

  According to the printer 10 of the present embodiment, the first position A1 may be located on the opposite side of the reference position A0 with respect to the second position A2. Thus, the operator can easily carry out the prevention of the rotation of the roll medium 5 and the sandwiching of the medium 5A between the pinch roller 23 and the grid roller 22 by moving the loading lever 50 in the same direction.

  The printer 10 according to the present embodiment includes a winding device 44 that winds the medium 5 </ b> A conveyed from the platen 20. Since the medium 5 </ b> A transported from the platen 20 is prevented from being skewed, the winding disturbance in the winding device 44 is suppressed.

  The printer 10 of the present embodiment includes an ink head 27 that is disposed above the platen 20 and moves in the main scanning direction Y and ejects ink onto the medium 5A. Since the medium 5A is conveyed in a state where the skew of the medium 5A is suppressed, it is possible to appropriately print on the medium 5A.

  The printer 10 of this embodiment includes a cutting head 28 that is disposed above the platen 20 and moves in the main scanning direction Y to cut the media 5A. Since the medium 5A is conveyed in a state where the skew of the medium 5A is suppressed, the medium 5A can be accurately cut.

  The preferred embodiments of the present invention have been described above. However, the above-described embodiments are merely examples, and the present invention can be implemented in various other forms.

  In the embodiment described above, the first holder 33 is provided with the rotating shaft 35, the protrusion 36, and the stopper 62, but the present invention is not limited to this. For example, the rotation shaft 35, the protrusion 36, and the stopper 62 may be provided on the second holder 34, or may be provided on both the first holder 33 and the second holder 34.

  In the above-described embodiment, the first position A1 is located below the reference position A0, and the second position A2 is located above the reference position A0. However, the present invention is not limited to this. For example, the first position A1 may be located above the reference position A0, and the second position A2 may be located below the reference position A0.

  In the embodiment described above, the first position A1 is located on the opposite side of the second position A2 with respect to the reference position A0. However, the present invention is not limited to this. The first position A1 may be located on the opposite side of the reference position A0 with respect to the second position A2. For example, the first position A1 may be located below the second position A2, and the reference position A0 may be located above the second position A2. Further, the first position A1 may be located above the second position A2, and the reference position A0 may be located below the second position A2.

  The stopper may be configured to release the prevention of the rotation of the roll media 5 at the same time or after the media 5A is sandwiched between the pinch roller 23 and the grid roller 22. For example, it can be realized by controlling the rotation of the stopper 62 using a motor. Thereby, the medium 5A can be appropriately placed on the platen 20 more reliably.

  In the embodiment described above, the printer 10 includes the ink head 27 and the cutting head 28. However, the printer 10 may include only one of them.

5 Roll media 5A Media 10 Printer 20 Platen 22 Grid roller 23 Pinch roller 30 Media support device 33 First holder 34 Second holder 36 Projection 50 Loading lever 55 First link mechanism 60 Second link mechanism 62 Stopper 66 Cable

Claims (10)

A media support device for supporting a roll media formed by winding a long medium and extending in the main scanning direction;
A platen disposed on the downstream side in the sub-scanning direction perpendicular to the main scanning direction with respect to the media support device, on which the medium unwound from the roll medium is placed;
A grid roller provided on the platen and transporting the medium in the sub-scanning direction;
A pinch roller disposed above the grid roller and holding the media;
A first link mechanism for moving the pinch roller toward and away from the grid roller;
A second link mechanism that allows and prevents rotation of the roll media;
The grid roller is disposed on the opposite side of the media support device, is connected to the first link mechanism and the second link mechanism, and the pinch roller moves to the first position from a reference position. The media is sandwiched between the pinch roller and the grid roller, and when the media moves from the first position to the reference position, the pinch roller moves away from the grid roller and the media is released, When the roll medium is moved from the reference position to the second position, the rotation of the roll medium is prevented, and when the roll medium is moved from the second position to the reference position or the first position, the prevention of rotation of the roll medium is released. And a loading lever. The media support device is:
A first holder for supporting one end of the roll media and rotatably supporting the roll media;
A second holder for supporting the other end of the roll media and rotatably supporting the roll media;
The first holder is provided with a rotation shaft that extends in the main scanning direction and rotates together with the roll medium,
The rotating shaft is provided with a protrusion extending in the radial direction,
The second link mechanism is
When the loading lever moves from the reference position to the second position, the loading lever moves to a contact position that contacts the protrusion, prevents rotation of the roll media, and the loading lever moves to the second position. 2. The stopper according to claim 1, further comprising a stopper that moves to a non-contact position that moves away from the protrusion when moving from a position to the reference position or the first position, and allows rotation of the roll media. Printer. The second link mechanism is
A cable that is connected to the loading lever and the stopper and applies tension when the loading lever moves from the reference position to the second position;
A support shaft that rotatably supports the stopper,
3. The printer according to claim 2, wherein when a tension is applied to the cable, the stopper is rotated toward the contact position, and when the cable is not applied with a tension, the stopper is located at the non-contact position. .   The printer according to claim 3, wherein the first holder provided with the rotation shaft is configured to be able to change a position in the main scanning direction with respect to the platen.   5. The stopper according to claim 2, wherein the stopper is configured to release the prevention of rotation of the roll media at the same time or after the media is sandwiched between the pinch roller and the grid roller. The printer described.   The printer according to claim 1, wherein the first position is located on the opposite side of the second position with respect to the reference position.   The printer according to claim 1, wherein the first position is located on the opposite side of the reference position with respect to the second position.   The printer according to any one of claims 1 to 7, further comprising a winding device that winds up the media conveyed from the platen.   The printer according to claim 1, further comprising an ink head that is disposed above the platen, moves in the main scanning direction, and discharges ink onto the medium.   The printer according to claim 1, further comprising a cutting head that is disposed above the platen, moves in the main scanning direction, and cuts the medium.

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