Conveying device and recording device

Abstract

To reduce the noise caused when correcting skewed media.SOLUTION: A carrier device 1 includes: a skew correction section 31 that corrects skew of a medium P by colliding the medium P being conveyed; a first conveying section 25 that conveys the medium P to the skew correction section 31; a buffer section 110 provided with a contact portion 111 that can contact the medium P in a conveying direction A between the first conveying section 25 and such and the skew correction section 31, where the buffer section 110 is configured so that the second conveying speed, which is the conveying speed of the medium P when the medium P strikes the skew correction section 31 after the medium P strikes the contacting portion 111, is slower than the first conveying speed, which is the conveying speed of the medium P upstream of the buffer section 110 in the transport direction A, and the contacting portion 111 is configured so as not to collide with the medium P strongly enough to correct the skew of the medium P.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a conveying device and a recording device.

Background Art

[0002] Conventionally, conveying devices with various configurations have been used, such as a recording device typified by a printer. Among these, there is a conveying device capable of correcting the skew of the conveyed medium. For example, Patent Document 1 discloses a conveying device that corrects the skew by causing the conveyed sheet to collide with a third claw portion for a sheet smaller than a certain size, and after causing the conveyed sheet to collide with the third claw portion for a sheet larger than or equal to the certain size, further causing it to collide with a first claw portion and a second claw portion to correct the skew.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, conventional conveying devices capable of correcting the skew of the conveyed medium have produced loud noises when correcting the skew of the medium. This noise is emitted when the conveyed medium collides with the skew correction part. In the conveying device of Patent Document 1, when conveying sheets smaller than a certain size, loud noises are generated when the sheet, which is the medium, collides with the third claw, which acts as the skew correction part. Furthermore, in the conveying device of Patent Document 1, when conveying sheets of a certain size or larger, loud noises are generated both when the sheet, which is the medium, collides with the third claw, which acts as the skew correction part, and when the sheet collides with the first and second claws, which also act as the skew correction part. Here, in the conveying device of Patent Document 1, when conveying sheets of a certain size or larger, the sheet first collides with the third claw before collides with the first and second claws, so the noise when the sheet collides with the first and second claws tends to be smaller. However, the sound produced when the sheet collides with the third claw, which is the skew correction part, is loud. Furthermore, considering the sum of the sound produced when the sheet collides with the third claw and the sound produced when the sheet collides with the first and second claws, it can be said that a significant amount of noise is generated when correcting the skew of the medium. [Means for solving the problem]

[0005] To solve the above problems, the present invention provides a conveying device for conveying a medium, comprising: a skew correction unit that corrects the skew of the conveyed medium by causing it to collide with the medium; a first conveying unit that conveys the medium to the skew correction unit; and a buffer unit provided between the first conveying unit and the skew correction unit in the conveying direction of the medium, wherein the buffer unit is configured such that the second conveying speed, which is the conveying speed of the medium from the time the medium comes into contact with the contact unit until it collides with the skew correction unit, is slower than the first conveying speed, which is the conveying speed of the medium upstream of the buffer unit in the conveying direction, and the buffer unit is configured so that the contact unit does not collide with the medium so strongly as to correct the skew of the medium. [Brief explanation of the drawing]

[0006] [Figure 1] A front view showing the internal configuration of a printer according to Embodiment 1 of the present invention. [Figure 2] Figure 1 is a front cross-sectional view showing the skew correction mechanism of the printer, illustrating the state in which the contact part is in contact with the transported medium. [Figure 3] Figure 1 is a perspective view showing the skew correction mechanism of the printer, illustrating the state in which the contact part is in contact with the transported medium. [Figure 4] Figure 1 is a front cross-sectional view showing the skew correction mechanism of the printer, illustrating the state in which the contact part is not in contact with the transported medium. [Figure 5] Figure 1 is a perspective view showing the skew correction mechanism of the printer, representing a state where the contact part is not in contact with the transported medium. [Figure 6] A front cross-sectional view showing the skew correction mechanism of a printer according to Embodiment 2 of the present invention. [Figure 7] A schematic diagram showing the skew correction mechanism of a printer according to Embodiment 3 of the present invention. [Figure 8] A schematic diagram showing the skew correction mechanism of a printer according to Embodiment 4 of the present invention. [Figure 9] A schematic front cross-sectional view showing the skew correction mechanism of a printer according to Embodiment 5 of the present invention. [Modes for carrying out the invention]

[0007] The present invention will be described in general terms below. A conveying device according to a first aspect of the present invention is a conveying device for conveying a medium, comprising: a skew correction unit that corrects the skew of the conveyed medium by causing it to collide with the medium; a first conveying unit that conveys the medium to the skew correction unit; and a buffer unit provided between the first conveying unit and the skew correction unit in the conveying direction of the medium, wherein the buffer unit is configured such that the second conveying speed, which is the conveying speed of the medium when it comes into contact with the contact unit and then collides with the skew correction unit, is slower than the first conveying speed, which is the conveying speed of the medium upstream of the buffer unit in the conveying direction, and the buffer unit is configured so that the contact unit does not collide with the medium so strongly as to correct its skew.

[0008] According to this embodiment, the buffer section is configured such that the second transport speed is slower than the first transport speed, and the contact section is configured so that it does not collide with the medium so strongly as to correct the skew of the medium. Therefore, it is possible to suppress the medium from colliding strongly with the skew correction section when correcting the skew of the medium, and also to suppress the medium from colliding strongly with the contact section of the buffer section. Consequently, it is possible to reduce the noise generated when correcting the skew of the medium.

[0009] A conveying device according to a second aspect of the present invention is characterized in that, in the first aspect, the buffer portion has a contact force reduction mechanism that reduces the contact force when the contact portion and the medium are in contact.

[0010] According to this embodiment, the buffer portion has a contact force reduction mechanism that reduces the contact force when the contact portion and the medium are in contact. Therefore, when correcting the skew of the medium using the contact force reduction mechanism, it is possible to suppress the medium from strongly colliding with the skew correction portion, and also to suppress the medium from strongly colliding with the contact portion of the buffer portion.

[0011] A third aspect of the present invention relates to a conveying device, in the second aspect, characterized in that the contact force reduction mechanism has an elastic member that biases the contact portion in the direction opposite to the conveying direction.

[0012] According to this aspect, the contact force reduction mechanism has an elastic member that biases the contact portion in the direction opposite to the conveyance direction. Therefore, due to the biasing force of the elastic member, for example, the medium can be suitably decelerated, or the contact portion can be returned to the position where the contact between the contact portion and the medium starts, which is the initial position.

[0013] The conveyance device according to the fourth aspect of the present invention is characterized in that, in the second aspect, the contact force reduction mechanism has a damper that attenuates the movement of the contact portion in the conveyance direction.

[0014] According to this aspect, the contact force reduction mechanism has a damper that attenuates the movement of the contact portion in the conveyance direction. Therefore, by means of the damper, for example, the medium can be suitably decelerated.

[0015] The conveyance device according to the fifth aspect of the present invention is characterized in that, in the second aspect, the contact force reduction mechanism has a displacement portion that moves the contact portion from the contact start position where the contact portion and the medium contact to a retracted position where the contact portion and the medium do not contact. When moving the contact portion from the contact start position to the retracted position, the displacement portion is configured to be able to move such that the conveyance speed of the medium becomes a conveyance speed slower than the first conveyance speed, and is configured to be able to return the contact portion from the retracted position to the contact start position.

[0016] According to this aspect, the contact force reduction mechanism has a displacement portion that moves the contact portion from the contact start position to the retracted position. The displacement portion is capable of moving such that the conveyance speed of the medium becomes a conveyance speed slower than the first conveyance speed and is capable of returning the contact portion from the retracted position to the contact start position. Therefore, for example, by means of a displacement portion such as a solenoid, the medium can be suitably decelerated, or the contact portion can be returned to the position where the contact between the contact portion, which is the initial position, and the medium starts.

[0017] The conveyance device according to the sixth aspect of the present invention is characterized in that, in the second aspect, the contact force reduction mechanism has a flexible member.

[0018] According to this aspect, the relay reduction mechanism has a flexible member. Therefore, by using the flexible member, for example, a configuration for suitably decelerating the medium or a configuration for returning the contact portion, which is the initial position, to the position where the contact with the medium starts can be formed easily or at low cost.

[0019] The transport device according to the seventh aspect of the present invention is characterized in that, in any one of the first to sixth aspects, the skew correction unit is a pair of rollers including a first roller and a second roller facing the first roller.

[0020] According to this aspect, the skew correction unit is a pair of rollers. Therefore, for example, skew can be corrected at the nip point of the pair of rollers, and the skew correction unit can also serve as a transport unit for the medium.

[0021] The transport device according to the eighth aspect of the present invention is characterized in that, in the seventh aspect, the contact portion is rotatable coaxially with the first roller.

[0022] According to this aspect, the contact portion is rotatable coaxially with the first roller. Therefore, the distance between the contact start position of the medium and the contact portion and the collision position of the medium and the skew correction unit can be shortened, the time from when the medium starts to contact the contact portion until it collides with the skew correction unit can be shortened, and a decrease in throughput can be suppressed.

[0023] The transport device according to the ninth aspect of the present invention is characterized in that, in the seventh aspect, at least one of the first roller and the second roller is a toothed roller that contacts the medium with a tooth portion.

[0024] According to this aspect, at least one of the first roller and the second roller is a toothed roller. Generally, when a toothed roller is used as the skew correction unit, the collision sound of the medium tends to be large, but by having a buffer portion, the sound generated when correcting the skew of the medium can be reduced.

[0025] A conveying device according to the tenth aspect of the present invention is characterized in that, in the seventh aspect, a plurality of the buffer portions and the first rollers are arranged alternately in the axial direction of the first roller.

[0026] According to this embodiment, multiple buffer sections and first rollers are alternately arranged in the axial direction of the first roller. Therefore, it is possible to suitably correct the skewness of media of various sizes while reducing the noise generated when correcting the skewness of the media. In particular, when using large media, by providing multiple buffer sections and first rollers alternately in the axial direction of the first roller, it is possible to suitably correct the skewness of the media and reduce the noise generated when correcting the skewness of the media.

[0027] In the eleventh aspect of the present invention, the conveying device is characterized in that, in any one of the first to sixth aspects, the oblique correction unit is a gate unit that can be displaced between a collision position in which the conveyed medium collides and a passage position through which the conveyed medium passes.

[0028] According to this embodiment, the skew correction unit is a gate unit that can be displaced between a collision position where the conveyed medium collides and a passage position through which the conveyed medium passes. Therefore, in a configuration in which skew correction is performed using the gate unit, the noise generated when correcting the skew of the medium can be reduced.

[0029] A conveying device according to a twelfth aspect of the present invention, in the eleventh aspect, is characterized in that the gate portion is displaceable between the collision position and the passage position by rotating with a pivot axis in a direction intersecting the conveying direction, and the contact portion is rotatable coaxially with the gate portion.

[0030] According to this embodiment, the gate portion can be displaced between a collision position and a passing position by rotating on a pivot axis in a direction intersecting the transport direction, and the contact portion can rotate coaxially with the gate portion. Therefore, the distance between the contact start position between the medium and the contact portion and the collision position between the medium and the skew correction portion can be shortened, the time from when the medium starts to contact the contact portion until it collides with the skew correction portion can be shortened, and a decrease in throughput can be suppressed.

[0031] A conveying device according to a thirteenth aspect of the present invention, in a third aspect, is characterized in that the oblique correction unit is a gate unit that is displaceable between a collision position in which the conveyed medium collides and a passage position through which the conveyed medium passes, the gate unit is displaceable between the collision position and the passage position by rotating with a pivot axis in a direction intersecting the conveying direction, the contact unit is biased by the contact force reduction mechanism with a first biasing force in the opposite direction to the conveying direction, the gate unit is biased by a second biasing force in the opposite direction to the conveying direction, and the first biasing force is smaller than the second biasing force.

[0032] According to this embodiment, the contact portion is biased with a first biasing force in the opposite direction to the transport direction, and the gate portion is biased with a second biasing force in the opposite direction to the transport direction, with the first biasing force being smaller than the second biasing force. Therefore, for example, it is possible to avoid the contact portion stopping by butting against the medium and pushing it back, and it is possible to reduce the noise generated when correcting the skew of the medium.

[0033] A conveying device according to the 14th aspect of the present invention is characterized in that, in any one of the first to sixth aspects, the contact portion extends from a base end to a tip that contacts the medium, and the tip extends downstream in the conveying direction relative to the base end.

[0034] In this embodiment, the tip of the contact portion that contacts the medium extends downstream in the conveying direction relative to the base end. Therefore, it is possible to suppress the loud collision noise caused by the conveyed medium unintentionally colliding strongly with the contact portion. In particular, since the medium collides with the contact portion at an angle, the collision noise can be suppressed compared to when it collides at a right angle. Furthermore, it does not obstruct the conveyance of the medium compared to when the contact portion extends upstream in the conveying direction relative to the base end.

[0035] A conveying device according to the 15th aspect of the present invention, in any one of the first to sixth aspects, is characterized in that it includes a second conveying unit that conveys the medium downstream of the oblique correction unit in the conveying direction, and the third conveying speed, which is the conveying speed of the medium by the second conveying unit after the obliqueness has been corrected by the oblique correction unit, is faster than the second conveying speed.

[0036] According to this embodiment, the third transport speed, which is the transport speed of the medium by the second transport unit after the skew correction unit has corrected the skew, is faster than the second transport speed. Therefore, it is possible to reduce the noise generated when correcting the skew of the medium while suppressing a decrease in throughput due to the subsequent recovery of the medium transport speed.

[0037] A recording device according to the sixteenth aspect of the present invention is characterized by comprising a transport device according to any one of the first to sixth aspects, and a recording unit that performs recording on the medium transported by the transport device.

[0038] According to this embodiment, the system includes a recording unit that records onto a medium. Therefore, when recording onto a medium, the noise generated when correcting the skew of the medium can be reduced. In other words, the recording accuracy can be improved by correcting the skew of the medium, while at the same time reducing the noise generated when correcting the skew of the medium.

[0039] [Example 1] The present invention will now be described in detail. First, an inkjet printer 1 of Embodiment 1, which is both a transport device and a recording device of the present invention, will be described. Hereinafter, the inkjet printer 1 will be abbreviated as printer 1. In each figure, the XYZ coordinate system is a Cartesian coordinate system, and the Y axis direction is the direction that intersects the transport direction of the medium P, i.e., the medium width direction, and also the device depth direction. Of the Y axis directions, the +Y direction is the direction from the front of the device to the back of the device, and the -Y direction is the direction from the back of the device to the front of the device.

[0040] The X-axis direction is the width direction of the device, with +X being the left and -X being the right when viewed from the operator of printer 1. The Z-axis direction is the vertical direction, i.e., the height direction of the device, with +Z being the upward direction and -Z being the downward direction. In the following, the direction in which the medium P is fed will be referred to as "downstream," and the opposite direction as "upstream." In each figure, the medium transport path is shown by a dashed line. In printer 1, the medium P is transported through the medium transport path shown by the dashed line.

[0041] As shown in Figure 1, the printer 1 comprises a housing 16 of the main body 2 and a door 17 that can rotate around an unshown axis extending in the Z-axis direction relative to the housing 16. The printer 1 also has a first media cassette 3 for storing media P at the bottom of the main body 2, and is configured to allow connection of an expansion unit 6 to the lower side of the main body 2. When the expansion unit 6 is connected, the second media cassette 4 and the third media cassette 5 are located below the first media cassette 3. The media P sent from each media cassette is transported within the printer 1 along the media transport path shown by the dashed line.

[0042] Each media cassette is provided with a pick roller that feeds the contained media P in the -X direction. Pick rollers 21, 22, and 23 are provided for the first media cassette 3, the second media cassette 4, and the third media cassette 5, respectively. Each media cassette is also provided with a pair of feed rollers that feed the media P fed in the -X direction diagonally upward. Feed roller pairs 25, 26, and 27 are provided for the first media cassette 3, the second media cassette 4, and the third media cassette 5, respectively. In the following, unless otherwise specified, a "roller pair" consists of a drive roller driven by a motor (not shown) and a driven roller that rotates in contact with the drive roller.

[0043] The media P sent from the third media cassette 5 is sent to the reversing roller 39 by the transport roller pair 29, 28. Similarly, the media P sent from the second media cassette 4 is sent to the reversing roller 39 by the transport roller pair 28. The media P is nipped by the reversing roller 39 and the driven roller 40 and sent to the transport roller pair 31. The media P sent from the first media cassette 3 is sent to the transport roller pair 31 without passing through the reversing roller 39. Here, as will be described in detail later, the transport roller pair 31 acts as a skew correction unit, and the area around the transport roller pair 31 forms the skew correction mechanism 100, which is the main part of the printer 1 in this embodiment. The supply roller 19 and separation roller 20, located near the reversing roller 39, are a roller pair that sends media P from a supply tray (not shown).

[0044] The medium P, which receives the feeding force from the transport roller pair 31, is transported between the line head 51, which is an example of a recording unit, and the transport belt 13, that is, to the recording position facing the line head 51. In the following, the medium transport path from the transport roller pair 31 to the transport roller pair 32 will be referred to as the recording transport path T1.

[0045] The line head 51 constitutes the head unit 50. The line head 51 performs recording by ejecting ink, which is an example of a liquid, onto the surface of the medium P. The line head 51 is an ink ejection head configured such that the nozzles that eject the ink cover the entire area in the width direction of the medium, and is configured as an ink ejection head that can record over the entire width of the medium without moving in the width direction of the medium. However, the ink ejection head is not limited to this, and may also be a type that is mounted on a carriage and ejects ink while moving in the width direction of the medium. Furthermore, it is also possible to use a recording unit other than an ink ejection head, such as a thermal transfer recording unit.

[0046] Printer 1 is equipped with ink storage units 61, 62, 63, and 64, which serve as liquid storage units. Ink ejected from the line head 51 is supplied to the line head 51 from each ink storage unit via tubes (not shown). Each ink storage unit is detachable. Printer 1 is also equipped with a waste liquid storage unit 11 for storing waste ink ejected from the line head 51 toward a flushing cap (not shown) for maintenance purposes.

[0047] The conveyor belt 13 is an endless belt that is wrapped around pulleys 14 and 15, and rotates when at least one of the pulleys 14 and 15 is driven by a motor (not shown). The medium P is transported at a position facing the line head 51 while being attracted to the belt surface of the conveyor belt 13. A known attraction method such as an air suction method or an electrostatic attraction method can be used to attract the medium P to the conveyor belt 13.

[0048] The recording transport path T1, which passes opposite the line head 51, is configured to transport the medium P upwards, forming an angle with respect to the horizontal and vertical directions. This upward transport direction includes the -X and +Z components in Figure 1, and this configuration allows for the suppression of the horizontal dimensions of the printer 1.

[0049] The medium P, on which the first surface has been recorded by the line head 51, is further propelled upward by the transport roller pair 32 located downstream of the transport belt 13. A flap 41 is provided downstream of the transport roller pair 32, and this flap 41 switches the transport direction of the medium P. If the medium P is to be discharged as is, the transport path of the medium P is switched by the flap 41 to head towards the upper transport roller pair 35, and the medium P is discharged towards the discharge tray 8 by the transport roller pair 35.

[0050] When recording is to be performed on a second surface opposite to the first surface of the medium P, the transport direction of the medium P is directed towards the branching position K1 by the flap 41. The medium P then passes through the branching position K1 and enters the switchback path T2. In this embodiment, the switchback path T2 is the medium transport path above the branching position K1. The switchback path T2 is provided with transport roller pairs 36 and 37. Once the medium P enters the switchback path T2, it is transported upward by the transport roller pairs 36 and 37, and when the rear edge of the medium P passes the branching position K1, the rotation direction of the transport roller pairs 36 and 37 is switched, thereby transporting the medium P downward. Note that "upward direction" does not mean only the vertically upward direction, but also includes a vector component in the vertically upward direction, and "downward direction" does not mean only the vertically downward direction, but also includes a vector component in the vertically downward direction.

[0051] A reversal path T3 is connected to the switchback path T2. In this embodiment, the reversal path T3 is the medium transport path from the branching point K1, passing through the transport roller pair 33 and 34, and the reversal roller 39 to the merging point P1. The medium P transported downward from the branching point K1 receives a feeding force from the transport roller pair 33 and 34, reaches the reversal roller 39, is curved and reversed by the reversal roller 39, and is sent towards the transport roller pair 31.

[0052] The medium P, transported by the transport roller pair 31 and then sent to a position facing the line head 51 again, has its second side facing the line head 51, opposite to the first side on which recording has already been done. This makes it possible for the line head 51 to record on the second side of the medium P. Here, the medium transport path from the first medium cassette 3 to the transport roller pair 31 is referred to as the supply path T0.

[0053] Next, with reference to Figures 2 to 5, the skew correction mechanism 100, which is the main part of the printer 1 of this embodiment, will be described in detail. As shown in Figures 2 to 5, the skew correction mechanism 100 of this embodiment has a transport roller pair 31 as a skew correction unit, and the transport roller pair 31 consists of a first roller 311 and a second roller 312 facing the first roller 311. The transport roller pair 31 corrects the skew of the transported medium P by causing the leading end of the transported medium P in the transport direction A to collide with the nip position between the first roller 311 and the second roller 312, thereby causing the end to conform to the nip position in the Y-axis direction.

[0054] The first roller 311 and the second roller 312 are configured to be rotatable with respect to shafts 101 and 102 extending in the Y-axis direction. Of these, the shaft 101 of the first roller 311 is provided with a buffer portion 110 that can rotate around the shaft 101 as the pivot axis. The second roller 312 is biased toward the first roller 311. As shown in Figures 2 and 4, the buffer portion 110A of this embodiment, which is the buffer portion 110, is provided with a contact portion 111 that can come into contact with the conveyed medium P. When the contact portion 111 is in the position shown in Figure 2, the contact portion 111 that comes into contact with the conveyed medium P moves to the position shown in Figure 4 as the medium P is conveyed in the conveying direction A.

[0055] As shown in Figures 3 and 5, in the printer 1 of this embodiment, multiple cushioning parts 110A are formed on the shaft 101. Each cushioning part 110A is fixed to a sheet metal member 121, and all cushioning parts 110A are configured to rotate integrally around the shaft 101 as the pivot axis. A torsion coil spring 122 is attached to the shaft 101, with one end 122A of the torsion coil spring 122 fixed to the sheet metal member 121, and the other end 122B of the torsion coil spring 122 fixed to a sheet metal member 123 fixed to the frame inside the printer 1.

[0056] In this embodiment, the printer 1 has the following configuration: the spring force of the torsion coil spring 122 acts to bias the contact portion 111, which has moved away from the sheet metal member 121 and the sheet metal member 123, that is, to return to the position shown in Figure 2. In other words, the torsion coil spring 122 biases the contact portion 111 in the counterclockwise direction in Figures 2 and 4, that is, in the opposite direction to the transport direction A. The position shown in Figure 2 corresponds to the initial position of the buffer portion 110A, and at the position shown in Figure 2, the projection 110b of the buffer portion 110A contacts the wall portion 123a provided on the sheet metal member 123, thereby maintaining the posture of the buffer portion 110A.

[0057] Here, the spring force of the torsion coil spring 122 is adjusted so that the buffer portion 110A is not strong enough to correct the skew of the medium P, and the transport speed of the transported medium P when it is in contact with the contact portion 111 is slower compared to when the buffer portion 110A is absent. In other words, the transport speed of the medium P when it is in contact with the contact portion is adjusted to be lower than the transport speed of the medium P when the buffer portion 110A is absent. To put it another way, the buffer portion 110A does not participate in correcting the skew of the medium P, and if we consider the transport speed of the medium P when the buffer portion 110A is absent as the first transport speed, and the transport speed of the medium P when it collides with the transport roller pair 31 after contacting the contact portion 111 as the second transport speed, then the first transport speed > the second transport speed.

[0058] To summarize, the printer 1 of this embodiment is a transport device for transporting a medium P. It is equipped with a transport roller pair 31 as a diagonal correction unit that corrects the diagonal movement of the transported medium P by causing it to collide with the transport roller pair. It is also equipped with various roller pairs provided upstream of the transport roller pair 31 in the transport direction A as a first transport unit that transports the medium P to the transport roller pair 31, including feed roller pairs 25, 26, and 27, transport roller pairs 28 and 29, and a roller pair consisting of a reversing roller 39 and a driven roller 40. Furthermore, it is equipped with a buffer section 110A between these first transport units and the transport roller pair 31 in the transport direction A of the medium P, with a contact section 111 that can come into contact with the medium P. Here, the buffer section 110A is configured such that the second transport speed, which corresponds to the transport speed of the medium P when it comes into contact with the contact section 111 and collides with the transport roller pair 31, is slower than the first transport speed, which corresponds to the transport speed of the medium P upstream of the buffer section 110A in the transport direction A, and the contact section 111 is configured not to collide with the medium P so strongly as to correct the diagonal movement of the medium P.

[0059] Because the printer 1 of this embodiment is configured in this way, it is possible to suppress the strong collision of the medium P with the transport roller pair 31, which is the diagonal correction unit, when correcting the diagonal movement of the medium P, and also to suppress the strong collision of the medium P with the contact portion 111 of the buffer portion 110A. Therefore, the printer 1 of this embodiment can reduce the noise generated when correcting the diagonal movement of the medium P. It should be noted that "the contact portion 111 does not collide with the medium P so strongly as to correct the diagonal movement of the medium P" can be expressed as "the contact portion 111 does not stop the medium P by butting against it and pushing it back, but rather decelerates the medium P by displacing in accordance with the transported medium P."

[0060] To summarize the printer 1 of this embodiment from the perspective of the recording device, the printer 1 of this embodiment comprises a transport device with the above configuration and a line head 51 as a recording unit that records on the medium P transported by the transport device. Therefore, the printer 1 of this embodiment can reduce the noise generated when correcting the skew of the medium P when recording on the medium P.

[0061] Furthermore, as described above, the buffer section 110A in this embodiment is configured such that the contact section 111 displaces in accordance with the transported medium P, thereby decelerating the medium P. In other words, the buffer section 110A acts as a contact force reduction mechanism that reduces the contact force when the contact section 111 and the medium P are in contact. For this reason, the printer 1 in this embodiment, with the buffer section 110A acting as a contact force reduction mechanism, can suppress the medium P from strongly colliding with the transport roller pair 31 when correcting the diagonal movement of the medium P, and can also suppress the medium P from strongly colliding with the contact section 111 of the buffer section 110A.

[0062] Furthermore, as described above, the buffer portion 110A has a torsion coil spring 122 that biases the contact portion 111 in the opposite direction to the transport direction A. By biasing the contact portion 111 in the opposite direction to the transport direction A with the biasing force of an elastic member such as the torsion coil spring 122, it is possible to, for example, suitably decelerate the medium P or return the contact portion 111 to the initial position shown in Figure 2, where the contact portion 111 and the medium P begin to come into contact. In this embodiment, the elastic member is a torsion coil spring 122, but it may also have an elastic member other than the torsion coil spring 122.

[0063] Here, as shown in Figures 2 and 4, the buffer portion 110A has a flexible member 111a at the position that contacts the medium P in the contact portion 111. By configuring the contact portion 111 to have a flexible member 111a in this way, a configuration that suitably decelerates the medium P using the flexible member 111a can be easily and inexpensively formed. There are no particular limitations on the type or configuration of the flexible member; for example, the position of the contact portion 111 that contacts the medium P can be made of a flexible resin, or a buffer member such as a sponge can be attached to the position that contacts the medium P. Alternatively, the entire contact portion may be made of a buffer member such as a sponge.

[0064] Here, in addition to a configuration in which a flexible member 111a is located at the position that contacts the medium P, the contact portion 111 may also be made of a flexible member. In such a configuration, the contact portion 111 can be returned to its initial position without providing an elastic member such as a torsion coil spring 122. By making the contact portion 111 a flexible member in this way, a configuration that suitably decelerates the medium P and a configuration that returns the contact portion 111 to the initial position where the contact portion 111 and the medium P begin to come into contact (contact start position) can be easily and inexpensively formed.

[0065] Furthermore, as described above, in the printer 1 of this embodiment, the transport roller pair 31, which serves as the skew correction unit, is characterized by being a roller pair having a first roller 311 and a second roller 312 facing the first roller 311. Therefore, in the printer 1 of this embodiment, skew can be corrected at the nip point of the roller pair, and the medium can be transported to the recording transport path T1 by the roller pair. In other words, the transport roller pair 31, which serves as the skew correction unit, also serves as the transport unit for the medium P.

[0066] Furthermore, as shown in Figures 2 and 4, the contact portion 111 is rotatable with respect to the axis 101 of the first roller 311. That is, the contact portion 111 is rotatable coaxially with the first roller 311. This configuration shortens the distance between the contact start position between the medium P and the contact portion 111 and the collision position between the medium P and the transport roller pair 31. As a result, the time from when the medium P starts to contact the contact portion 111 until it collides with the transport roller pair 31 can be shortened, and a decrease in throughput can be suppressed. Note that although the contact portion and the first roller 311 are coaxial, they do not have to rotate as a single unit. Alternatively, the contact portion 111 may be configured to rotate coaxially with the second roller 312. In this case, the roller at the position of the second roller 312 can be considered as the first roller, and the roller at the position of the first roller 311 can be considered as the second roller. In other words, the contact portion 111 may be configured to rotate coaxially with a drive roller driven by a motor (not shown), or it may be configured to rotate coaxially with a driven roller that is in contact with and rotates in response to the drive roller.

[0067] Furthermore, as shown in Figures 3 and 5, the first roller 311 is a toothed roller that contacts the medium P with its teeth 311a. In this way, at least one of the first roller 311 and the second roller 312 can be a toothed roller that contacts the medium P with its teeth. Generally, when a toothed roller is used as a skew correction unit, the collision noise of the medium P tends to be loud, but by having a buffer unit 110, the noise generated when correcting the skew of the medium P can be reduced. Also, as in this embodiment, when the transport device is used as a recording device, by making the first roller 311 a toothed roller, it is possible to suppress the adhesion of ink recorded on the medium P to the first roller 311, for example, when performing double-sided recording. Furthermore, as described above, when the roller at the position of the second roller 312 is considered as the first roller and the roller at the position of the first roller 311 is considered as the second roller, by making the second roller a toothed roller, it is possible to suppress the adhesion of ink recorded on the medium P to the second roller, for example, when performing double-sided recording. In this way, by making at least one of the first roller 311 and the second roller 312 a toothed roller, it is possible to suppress the adhesion of ink recorded on the medium P to the first roller 311 or the second roller 312, for example, when performing double-sided recording.

[0068] Furthermore, as shown in Figures 3 and 5, the printer 1 of this embodiment has multiple buffer sections 110A and first rollers 311 alternately in the axial direction of the first roller 311. That is, multiple buffer sections 110A and first rollers 311 are arranged alternately in the axial direction of the first roller 311. With this configuration, the skew of media P can be suitably corrected for media P of various sizes, and the noise generated when correcting the skew of media P can be reduced. In particular, when a large media P is used, by providing multiple buffer sections 110 and first rollers 311 alternately in the axial direction of the first roller 311, the skew of media P can be suitably corrected, and the noise generated when correcting the skew of media P can be reduced. Furthermore, the phrase "having multiple buffer sections 110A and first rollers 311 alternately in the axial direction of the first roller 311" means that as long as there are multiple buffer sections 110A and first rollers 311 alternately in the axial direction of the first roller 311, it is not necessarily required that all buffer sections 110A and first rollers 311 be arranged alternately in the axial direction of the first roller 311.

[0069] As shown in Figure 1, the printer 1 of this embodiment is equipped with multiple transport sections, including a transport belt 13 and transport roller pairs 32, 35, 36, and 37, which further transport the medium P after it has been transported by the transport roller pair 31 acting as a skew correction section. These correspond to a second transport section that transports the medium P downstream of the skew correction section in the transport direction A. In this embodiment, the printer 1 is adjusted so that the third transport speed, which is the transport speed of the medium P by these second transport sections after the skew has been corrected by the skew correction section, is faster than the second transport speed. With this configuration, it is possible to reduce the noise generated when correcting the skew of the medium P while suppressing a decrease in throughput due to the subsequent recovery of the transport speed of the medium P. In this embodiment, the third transport speed is adjusted to the same speed as the first transport speed, but the third transport speed only needs to be faster than the second transport speed, and the third transport speed may be faster than, the same as, or slower than the first transport speed.

[0070] [Example 2] The printer 1 of Example 2 will be described below with reference to Figure 6. Figure 6 is the same as Figure 2 in the printer 1 of Example 1. The printer 1 of this example is the same as the printer 1 of Example 1 except for the configuration described below. In detail, only the configuration of the buffer portion 110 differs from the printer 1 of Example 1, and in further detail, only the buffer portion 110B has a different shape of contact portion 111 compared to the buffer portion 110A of Example 1. For this reason, the printer 1 of this example has the same characteristics as the printer 1 of Example 1 except for the parts described below. Therefore, in Figure 6, components common to Example 1 are indicated by the same reference numerals, and detailed explanations are omitted.

[0071] As shown in Figure 2, in the buffer section 110A of Embodiment 1, the contact portion 111 at the contact start position contacts the medium P such that the direction from the tip portion 111b to the base portion 111c is substantially perpendicular to the transport direction A of the medium P. On the other hand, as shown in Figure 6, in the buffer section 110B of this embodiment, the contact portion 111 at the contact start position contacts the medium P in an arrangement where the direction from the tip portion 111b to the base portion 111c forms an acute angle with respect to the transport direction A of the medium P. In other words, in the buffer section 110B of this embodiment, the contact portion 111 extends from the base portion 111c to the tip portion 111b that contacts the medium P, and the tip portion 111b extends downstream of the base portion 111c in the transport direction A. Because the printer 1 of this embodiment has this configuration, it is possible to suppress the loud collision noise caused by the transported medium P unintentionally colliding strongly with the contact portion 111. Furthermore, this configuration makes it possible to suppress obstruction of the transport of the medium P by the contact portion 111.

[0072] [Example 3] The printer 1 of Example 3 will be described below with reference to Figure 7. The printer 1 of this example is the same as the printer 1 of Examples 1 and 2, except for the configuration described below. In detail, only the configuration of the buffer section 110 differs from the printer 1 of Examples 1 and 2. Therefore, the printer 1 of this example has the same characteristics as the printer 1 of Examples 1 and 2, except for the parts described below. Accordingly, in Figure 7, components common to Examples 1 and 2 are indicated by the same reference numerals, and detailed explanations are omitted.

[0073] The buffer section 110A of Example 1 and the buffer section 110B of Example 2 have a torsion coil spring 122, which is an elastic member, as a contact force reduction mechanism. However, the present invention may also have components other than elastic members as a contact force reduction mechanism. Thus, as shown in Figure 7, the buffer section 110C of this embodiment has a damper 130 connected to the contact section 111, which dampens the motion of the contact section 111 in the transport direction A, as a contact force reduction mechanism. In this way, even with a damper 130 as a contact force reduction mechanism, the damper 130 can suitably reduce the transport speed P from the first transport speed V1 to the second transport speed V2. Note that in this embodiment, the buffer section 110C itself can be considered as a contact force reduction mechanism, or the buffer section 110C can be considered as having a damper 130 as a contact force reduction mechanism. In this embodiment, the buffer section 110C moves the contact portion 111 along the transport path of the medium P from its initial position, the contact start position, to the nip position of the transport roller pair 31, as the medium P is transported at the second transport speed V2. After the contact portion 111 reaches the nip position of the transport roller pair 31, it returns to the contact start position by passing through a position outside the transport path. However, the above configuration is not limited to this configuration, as long as the movement of the contact portion 111 in the transport direction A is damped by a damper.

[0074] [Example 4] The printer 1 of Example 4 will be described below with reference to Figure 8. Figure 8 is the same as Figure 7 in the printer 1 of Example 3. The printer 1 of this example is the same as the printer 1 of Examples 1 to 3, except for the configuration described below. In detail, only the configuration of the buffer section 110 differs from the printer 1 of Examples 1 to 3. Therefore, the printer 1 of this example has the same characteristics as the printer 1 of Examples 1 to 3, except for the parts described below. Accordingly, in Figure 8, components common to Examples 1 to 3 are indicated by the same reference numerals, and detailed explanations are omitted.

[0075] As shown in Figure 8, the buffer section 110D of this embodiment has a solenoid 140 as a contact force reduction mechanism. The solenoid 140 has a three-dimensional coil 141 and a plunger 142 that is inserted into the three-dimensional coil 141 and connected to the contact section 111. By energizing the three-dimensional coil 141, the plunger 142 moves relative to the three-dimensional coil 141 together with the contact section 111. In other words, the buffer section 110D of this embodiment has a solenoid 140 as a displacement part that moves the contact section 111 from a contact start position where the contact section 111 and the medium P come into contact to a retracted position where the contact section 111 and the medium P do not come into contact. Furthermore, the solenoid 140 is configured to move the transport path of the medium P such that the transport speed of the medium P is slower than the first transport speed when moving the contact portion 111 from the contact start position to the retracted position, and is configured to move the contact portion 111 in the opposite direction to the transport direction A so that the contact portion 111 passes through a position outside the transport path, thereby returning it from the retracted position to the contact start position.

[0076] The buffer section 110D in this embodiment has the following configuration, which allows for the appropriate deceleration of the medium P and the return of the contact section 111 to the contact start position, which is the initial position where the contact section 111 and the medium P begin to come into contact. In this embodiment, the solenoid 140 is configured to move the contact section 111 from the contact start position to the retracted position so that the transport speed of the medium P becomes the second transport speed when the contact section 111 is moved. However, it is also possible to configure the system so that the contact section 111 is moved to the second transport speed by frictional force and back electromotive force of the solenoid without energizing the contact section 111 when it is moved from the retracted position to the contact start position, and without energizing the contact section 111 when it is moved from the contact start position to the retracted position. Furthermore, there are no limitations on the speed at which the contact portion 111 is moved from the contact start position to the retracted position. As long as the transport speed is slower than the first transport speed, the movement speed of the contact portion 111 may be faster or slower than the transport speed of the medium.

[0077] Furthermore, in this embodiment, the contact portion 111 moves linearly along the transport direction A by the solenoid 140. However, the contact portion 111 may not move linearly, but rather rotate around a pivot axis in a direction intersecting the transport direction A, using a displacement part other than the solenoid 140. In this embodiment, the buffer portion 110D itself can be considered as a contact force reduction mechanism, or the buffer portion 110D can be considered as having a displacement part (solenoid 140) as a contact force reduction mechanism. Moreover, the embodiment is not limited to the above configuration as long as the transport speed of the medium is reduced by the displacement part.

[0078] [Example 5] The printer 1 of Example 5 will be described below with reference to Figure 9. The printer 1 of this example is the same as the printer 1 of Examples 1 to 4, except for the configuration described below. In detail, only the configuration of the skew correction mechanism 100 differs from the printer 1 of Examples 1 to 4. Therefore, the printer 1 of this example has the same characteristics as the printer 1 of Examples 1 to 4, except for the parts described below. Accordingly, in Figure 9, components common to Examples 1 to 4 are indicated by the same reference numerals, and detailed explanations are omitted.

[0079] In the printers 1 of Examples 1 to 4, the transport roller pair 31 also served as a diagonal correction unit. On the other hand, the printer 1 of this embodiment, as shown in Figure 9, is equipped with a gate unit 150 as a diagonal correction unit. The gate unit 150 is configured to be displaceable between a collision position S1, represented by a solid line, where the transported medium P collides, and a passage position S2, represented by a dashed line, through which the transported medium P passes. When the gate unit 150 is positioned at the collision position S1, the transported medium P collides with the gate unit 150 to correct the diagonal of the transported medium P. After that, by positioning the gate unit 150 at the passage position S2, the diagonally corrected medium P can be transported downstream in the transport direction A. With this configuration, the printer 1 of this embodiment can reduce the noise generated when correcting the diagonal of the medium P in a configuration that uses the gate unit 150 to correct the diagonal. In this embodiment, the printer 1 is configured to be displaceable between a collision position S1 and a retracted position S2 by rotating on an axis 151. Specifically, the gate section 150 corrects the skew of the medium P when it collides with it at the collision position S1, and then moves to the passing position S2 with the medium P in contact with it, due to the transport force of the first transport section such as the feed roller pair 25. However, the printer is not limited to this configuration. For example, the gate section 150 may be rotated using a motor or the like, or the gate section 150 may be configured to be displaceable between the collision position S1 and the passing position S2 by moving linearly.

[0080] In this embodiment, the printer 1 is configured to be displaceable between a collision position S1 and a passing position S2 by rotating around the axis 151. The buffer portion 110E in this embodiment, which has the same shape as the buffer portion 110A in Embodiment 1, is provided on the axis 151 of the gate portion 150 instead of the axis 101 of the transport roller pair 31. In other words, the gate portion 150 is displaceable between a collision position S1 and a passing position S2 by rotating around the Y-axis direction, which is the direction intersecting the transport direction A, and the contact portion 111 of the buffer portion 110E is rotatable coaxially with the gate portion 150. That is, in this embodiment, the printer 1 is configured to be displaceable between a collision position S1 and a passing position S2 by rotating around the Y-axis direction, which is the direction intersecting the transport direction A, and the contact portion 111 of the buffer portion 110E is rotatable coaxially with the gate portion 150. The medium P is then transported while in contact with the contact portion 111 and the gate portion 150. Therefore, in this embodiment, the printer 1 can shorten the distance L1 between the contact start position between the medium P and the contact portion 111 and the collision position S1 between the medium P and the gate portion 150, shortening the time from when the medium P starts to contact the contact portion 111 until it collides with the gate portion 150, and suppressing a decrease in throughput.

[0081] It is preferable that the contact portion 111 and the gate portion 150 be constructed as separate components. For example, if a cushioning member such as a sponge is integrally provided with the gate portion 150, the accuracy of the skew correction of the medium P that collides with the gate portion 150 may decrease due to the cushioning member. Therefore, by providing the contact portion 111 separately from the gate portion 150 so as to contact the medium P upstream of the gate portion 150, the decrease in the accuracy of the skew correction of the medium P can be suppressed. However, the contact portion 111 may also be provided on the gate portion 150 as in this embodiment. In such a configuration, the contact portion 111 can first retract upon contact with the transported medium P, and then the gate portion 150 can retract upon collision with the medium P.

[0082] Furthermore, as described above, the gate portion 150 can be displaced between a collision position S1 and a passing position S2 by rotating with the Y-axis direction as the pivot axis. Here, the contact portion 111 is biased by a biasing portion (not shown) with a first biasing force in the opposite direction to the transport direction A, and the gate portion 150 is biased by a biasing portion (not shown) with a second biasing force in the opposite direction to the transport direction A. The first biasing force is smaller than the second biasing force. With this configuration, the printer 1 of this embodiment can avoid, for example, the contact portion 111 stopping by hitting the medium P and pushing it back, and can reduce the noise generated when correcting the skew of the medium P. With this configuration, when the medium P is transported to a position where it does not come into contact with the gate portion 150 and the contact portion 111, the gate portion 150 returns to the collision position S1 and the contact portion 111 returns to its initial position.

[0083] The present invention is not limited to the embodiments described above, and it goes without saying that various modifications are possible within the scope of the invention as described in the claims, and these modifications are also included within the scope of the present invention. For example, it is not limited to printers, but may also be applied to scanners, intermediate units installed between various devices, and transport devices in finishers, etc. [Explanation of Symbols]

[0084] 1... Inkjet printer (transport device, recording device), 2... Main unit, 3... First media cassette, 4... Second media cassette, 5... Third media cassette, 6... Expansion unit, 8... Discharge tray, 11... Waste liquid storage section, 13... Transport belt (second transport section), 14... Pulley, 15... Pulley, 16... Housing section, 17... Door section, 19... Supply roller, 20... Separation roller, 21... Pick roller, 22... Pick roller, 23... Pick roller, 25... Feeding roller pair (first transport section), 26... Feeding roller Pair (first conveying section), 27... Feeding roller pair (first conveying section), 28... Conveying roller pair (first conveying section), 29... Conveying roller pair (first conveying section), 31... Conveying roller pair (skew correction section), 32... Conveying roller pair (second conveying section), 33... Conveying roller pair, 34... Conveying roller pair, 35... Conveying roller pair (second conveying section), 36... Conveying roller pair (second conveying section), 37... Conveying roller pair (second conveying section), 39... Reversing roller (first conveying section), 40... Driven roller (first conveying section), 41... Flap, 5 0...Head unit, 51...Line head (recording section), 61...Ink storage section, 62...Ink storage section, 63...Ink storage section, 64...Ink storage section, 100...Skew correction mechanism, 101...Shaft, 102...Shaft, 110...Buffer section (contact force reduction mechanism), 110A...Buffer section, 110B...Buffer section, 110C...Buffer section, 110D...Buffer section, 110E...Buffer section, 110b...Protrusion, 111...Contact section, 111a...Flexible member, 111b...Tip, 111c...Base, 121...Sheet metal member, 122...Twist coil spring ,122A...end section, 122B...end section, 123...sheet metal member, 123a...wall section, 130...damper (contact force reduction mechanism), 140...solenoid (contact force reduction mechanism, displacement section), 141...3D coil, 142...plunger, 150...gate section, 151...shaft, 311...first roller, 311a...teeth section, 312...second roller, K1...branching position, P...medium, P1...merging point, S1...collision position, S2...retraction position, T0...feeding path, T1...transport path during recording, T2...switchback path, T3...reversal path

Claims

1. A conveying device for transporting a medium, A skew correction unit corrects the skew of the medium by causing it to collide with the transported medium, A first transport unit that transports the medium to the diagonal correction unit, A buffer portion is provided between the first transport portion and the oblique correction portion in the transport direction of the medium, with a contact portion that can come into contact with the medium, Equipped with, The aforementioned buffer portion is The system is configured such that the second transport speed, which is the transport speed of the medium when it comes into contact with the contact portion and then collides with the oblique correction portion, is slower than the first transport speed, which is the transport speed of the medium upstream of the buffer portion in the transport direction. The contact portion is configured not to collide with the medium so strongly as to correct the skewness of the medium, The buffer portion has a contact force reduction mechanism that reduces the contact force when the contact portion and the medium are in contact. The contact force reduction mechanism has a displacement unit that moves the contact portion from a contact start position where the contact portion and the medium come into contact to a retracted position where the contact portion and the medium do not come into contact. The transport device is characterized in that the displacement unit is configured to move the contact unit from the contact start position to the retracted position such that the transport speed of the medium is slower than the first transport speed, and is configured to return the contact unit from the retracted position to the contact start position.

2. In the conveying device according to claim 1, The contact force reduction mechanism is characterized by having an elastic member that biases the contact portion in the opposite direction to the conveying direction.

3. In the conveying device according to claim 1, The contact force reduction mechanism is characterized by having a damper that dampens the movement of the contact portion in the conveying direction.

4. In the conveying device according to claim 1, The aforementioned contact force reduction mechanism is characterized by having a flexible member.

5. In the conveying device according to any one of claims 1 to 4, The conveying device is characterized in that the diagonal correction unit is a roller pair having a first roller and a second roller facing the first roller.

6. In the conveying device according to claim 5, The conveying device is characterized in that the contact portion is rotatable coaxially with the first roller.

7. In the conveying device according to claim 5, A conveying device characterized in that at least one of the first roller and the second roller is a toothed roller that contacts the medium with its teeth.

8. In the conveying device according to claim 5, A conveying device characterized in that a plurality of the buffer portions and the first roller are arranged alternately in the axial direction of the first roller.

9. A conveying device for transporting a medium, A skew correction unit corrects the skew of the medium by causing it to collide with the transported medium, A first transport unit that transports the medium to the diagonal correction unit, A buffer portion is provided between the first transport portion and the oblique correction portion in the transport direction of the medium, with a contact portion that can come into contact with the medium, Equipped with, The aforementioned buffer portion is The system is configured such that the second transport speed, which is the transport speed of the medium when it comes into contact with the contact portion and then collides with the oblique correction portion, is slower than the first transport speed, which is the transport speed of the medium upstream of the buffer portion in the transport direction. The contact portion is configured not to collide with the medium so strongly as to correct the skewness of the medium, The conveying device is characterized in that the oblique correction unit is a gate unit that can be displaced between a collision position where the conveyed medium collides and a passage position through which the conveyed medium passes.

10. In the conveying device according to claim 9, The gate portion is displaceable between the collision position and the passage position by rotating with a pivot axis in a direction intersecting the transport direction. The conveying device is characterized in that the contact portion is rotatable coaxially with the gate portion.

11. A conveying device for transporting a medium, A skew correction unit corrects the skew of the medium by causing it to collide with the transported medium, A first transport unit that transports the medium to the diagonal correction unit, A buffer portion is provided between the first transport portion and the oblique correction portion in the transport direction of the medium, with a contact portion that can come into contact with the medium, Equipped with, The aforementioned buffer portion is The system is configured such that the second transport speed, which is the transport speed of the medium when it comes into contact with the contact portion and then collides with the oblique correction portion, is slower than the first transport speed, which is the transport speed of the medium upstream of the buffer portion in the transport direction. The contact portion is configured not to collide with the medium so strongly as to correct the skewness of the medium, The buffer portion has a contact force reduction mechanism that reduces the contact force when the contact portion and the medium are in contact. The aforementioned contact force reduction mechanism has an elastic member that biases the contact portion in the direction opposite to the conveying direction, The aforementioned oblique correction unit is a gate unit that can be displaced between a collision position where the conveyed medium collides and a passage position through which the conveyed medium passes. The gate portion is displaceable between the collision position and the passage position by rotating with a pivot axis in a direction intersecting the transport direction. The contact portion is biased by the contact force reduction mechanism with a first biasing force in the direction opposite to the conveying direction. The gate portion is biased by a second biasing force in the direction opposite to the conveying direction. A conveying device characterized in that the first biasing force is smaller than the second biasing force.

12. In the conveying device according to any one of claims 1 to 4, The contact portion extends from the base end to the tip that contacts the medium, The conveying device is characterized in that the tip portion extends downstream in the conveying direction relative to the base portion.

13. In the conveying device according to any one of claims 1 to 4, The system includes a second transport unit that transports the medium downstream of the oblique correction unit in the transport direction, A conveying device characterized in that the third conveying speed, which is the conveying speed of the medium by the second conveying unit after the skew correction unit has corrected the skew, is faster than the second conveying speed.

14. A conveying device according to any one of claims 1 to 4, A recording unit that records on the medium transported by the transport device, A recording device characterized by comprising the following features.

Images