JP2019206408A - Processing unit, skew correcting device, and recording device - Google Patents

Abstract

To provide a processing unit capable of surely performing skew correction without making a length etc., of a deflection space variable; and a skew correcting device and a recording device with the processing unit.SOLUTION: A processing unit 100 comprises: a processing part (recording head 10); a pair of skew correction rollers (a pair of conveyance rollers 16) for correcting a skew of a sheet P at a nip position at an upstream side of the recording head 10; a first conveyance path 50 which is formed at an upstream side of the pair of conveyance rollers 16 and allows a deflection at the time of the skew correction of the conveyed sheet P; a second conveyance path 56 which is formed in parallel with the first conveyance path 50 at the upstream side of the pair of conveyance rollers 16 and allows a larger deflection than that of the first conveyance path 50 at the time of the skew correction of the conveyed sheet P; and a guide member 30 which is disposed at an upstream side of the first conveyance path 50 and the second conveyance path 56, and guides the sheet P to either the first conveyance path 50 or the second conveyance path 56 in response to rigidity of the sheet P.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a processing apparatus that performs skew removal during medium conveyance, a skew correction apparatus including the processing apparatus, and a recording apparatus.

  Conventionally, an ink jet printer (hereinafter referred to as a printer) is known as an example of a recording apparatus. A printer normally takes out the topmost sheet from a plurality of media (for example, printing sheets, hereinafter referred to as sheets) stacked on a sheet feeding tray, and prints a recording section (printing section) along a feeding path (conveyance path). ) Is printed by feeding paper one by one.

  In such a printer, when the paper is sent to the recording unit, a so-called skew in which the paper is sent obliquely with respect to the conveyance path may occur. When the paper is transported in a skewed state, problems such as the occurrence of a paper jam or printing not being performed at a predetermined position occur.

  Therefore, the skew is removed (skew correction) before the sheet is conveyed to the recording unit. Japanese Patent Application Laid-Open No. 2004-228561 discloses a configuration in which the bending is controlled by changing the length of the bending space in the conveyance direction in accordance with the rigidity of the paper at the position where the bending space for skew correction is formed.

JP-A-2015-58990

  In the configuration of the paper conveying device of Patent Document 1, there is a problem that a mechanism for changing the length of the flexure space and the like and a control for operating this mechanism become complicated.

  The processing apparatus of the present application includes a processing unit that performs predetermined processing on a medium to be conveyed, a skew correction roller pair that corrects skew of the medium at a nip position on the upstream side of the processing unit, and a skew correction roller pair. Of the medium to be conveyed and formed in parallel with the first conveyance path on the upstream side of the pair of skew correction rollers. A second transport path that allows greater deflection than the first transport path during skew correction, and an upstream side of the first transport path and the second transport path, and the medium is disposed between the first transport path and the second transport path. The guide member is characterized in that the guide member switches between the first transport path and the second transport path according to the rigidity of the medium.

  The guide member of the processing apparatus is composed of a flexible plate-like member arranged in a posture to guide to the first transport path, and guides to the second transport path by bending according to the rigidity of the medium. It is preferable to be in a posture.

  The guide member of the processing apparatus is composed of a plate-like member that is pressed so as to maintain the posture of guiding to the first transport path, and is displaced against the press by the rigidity of the medium, so that the second transport path It is preferable that the posture is to guide to.

  The processing apparatus includes a path changing unit that changes the path of the medium on the upstream side of the guide member in the transport direction. And a path changing member that is displaceable according to the rigidity of the medium, and the guide member switches the path between the first transport path and the second transport path in accordance with the displacement of the path changing member. Is preferred.

  It is preferable that the route changing member of the processing apparatus is displaced to the outside of the conveyance path of the route changing unit by the medium so that the guide member is guided to the second conveyance path.

  The course changing unit of the processing device preferably includes a pressing member that presses the course changing member toward the inside of the transport path.

  The course changing member of the processing apparatus is preferably displaced against the pressing of the pressing member due to the rigidity of the medium.

  It is preferable that the course changing unit of the processing apparatus includes a curved curved part, and the course changing member is disposed outside the curved part.

  The said processing apparatus is provided with the partition member which partitions off a 1st conveyance path | route and a 2nd conveyance path | route, and the protrusion part which inclines and protrudes upstream is formed in the upstream edge part of the conveyance direction of a partition member. Preferably it is.

  The skew feeding correction apparatus of the present application includes any one of the processing apparatuses described above.

  The recording apparatus of the present application includes any one of the processing apparatuses described above.

FIG. 2 is a perspective view illustrating an appearance of the printer according to the embodiment. FIG. 3 is a side sectional view of the printer according to the embodiment. FIG. 4 is a diagram illustrating a sheet conveyance route in the printer according to the embodiment. The sectional side view which shows the processing apparatus which concerns on 1st Embodiment. The sectional side view which shows the processing apparatus which concerns on 1st Embodiment. The sectional side view which shows the processing apparatus which concerns on 2nd Embodiment. The top view which shows the processing apparatus which concerns on 3rd Embodiment. The sectional side view which shows the processing apparatus which concerns on 4th Embodiment. The sectional side view which shows the processing apparatus which concerns on 4th Embodiment. The sectional side view which shows the processing apparatus which concerns on 5th Embodiment. The sectional side view which shows the processing apparatus which concerns on 5th Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. In the following drawings, the scale of each member is different from the actual scale for convenience of explanation of the operation and action of each member.

An outline of a recording apparatus according to an embodiment of the present invention will be described. As an example of the recording apparatus, an ink jet printer 1 (hereinafter referred to as the printer 1) is taken as an example.
FIG. 1 is a perspective view illustrating an appearance of the printer 1 according to the present embodiment. FIG. 2 is a side sectional view of the printer 1 according to the present embodiment. FIG. 3 is a diagram illustrating transport routes R1 and R2 of the paper P in the printer 1 according to the present embodiment. The printer 1 as the recording apparatus shown in FIGS. 1, 2, and 3 is the first to fifth embodiments described below except for the configuration of the conveyance path between the intermediate roller 13 and the conveyance roller pair 16. The structure common in embodiment is shown.

  In each figure, an XYZ coordinate system is used. The X direction is the scanning direction of the recording head 10 and the width direction of the medium on which recording is performed. The Y direction is the depth direction of the printer 1 and the length direction of the medium. The Z direction is the direction of gravity and is the height direction of the printer 1.

  Further, the front side of the apparatus is defined as + Y direction, and the rear side of the apparatus is defined as −Y direction. When the printer 1 is viewed from the front side, the left side of the apparatus is the + X direction, and the right side of the apparatus is the −X direction. Further, the upper side of the apparatus (including the upper, upper, and upper surfaces) is defined as the + Z direction and the lower side of the apparatus (including the lower, lower, and lower surfaces) is defined as the −Z direction.

  In the following description, the direction in which the paper P is transported inside the printer 1 is referred to as “downstream side”. The direction in which the paper P is conveyed in the direction opposite to the downstream side is referred to as “upstream side”.

[Printer Overview]
As shown in FIG. 1, the printer 1 according to the present embodiment is configured as a multifunction machine including a printer unit 2 that performs recording on a sheet P as a medium and a scanner unit 3 that reads an image of a document. The scanner unit 3 is provided on the upper part of the printer unit 2. Examples of the type of paper P on which recording is performed by the printer unit 2 include plain paper, cardboard, and photographic paper.

  As shown in FIG. 2, the paper P after recording by the recording head 10 provided in the printer unit 2 is discharged from the discharge port 4 provided in the front of the apparatus in FIG. 1 and placed on the paper discharge tray 5. On the front side of the apparatus, there is installed an operation panel 6 including a power button, operation buttons for performing various print settings and recording, a display unit for displaying print setting contents, print image previews, and the like. .

[Media transport route in the printer]
With reference to FIGS. 2 and 3, the transport route R <b> 1 of the paper P in the printer unit 2 will be described. 2 and 3, the alternate long and short dash line indicates the transport route R1 of the paper P. Although details will be described later, a transport route R1 from the intermediate roller 13 to the transport roller pair 16 shown in FIGS. 2 and 3 indicates a transport route R1 of a sheet P (for example, plain paper) having low rigidity.

  The printer unit 2 includes two-stage paper trays 7 and 8 that accommodate a plurality of paper P at the bottom, and the paper P is fed from one of the paper trays 7 and 8 one by one. The paper P is fed from the paper tray 7 to the back side (−Y direction) of the apparatus by a first feeding roller 11 (also referred to as a pickup roller), and is bent by an intermediate roller 13 driven by a first driving source (not shown). And sent to the front side of the apparatus (+ Y direction). Similarly, the paper tray 8 is fed to the rear side of the apparatus by the second feeding roller 12, is bent by the intermediate roller 13, and is fed to the front side of the apparatus.

  Here, the driven roller on the upstream side is the driven roller 14a and the driven roller on the downstream side is the driven roller 14b with respect to the driven roller that rotates following the rotation of the intermediate roller 13. The transport route R1 of the paper P fed from the paper tray 7 and the transport route R1 of the paper P fed from the paper tray 8 merge before (upstream) the nip position between the intermediate roller 13 and the driven roller 14a. doing.

  The first feeding roller 11 and the second feeding roller 12 are configured to be swingable about the swing shafts 11a and 12a, respectively, and are the top of the plurality of sheets P stored in the sheet trays 7 and 8. It is comprised so that the paper P may be contacted. Further, the first feeding roller 11 is configured to be driven by a first driving source common to the intermediate roller 13.

  The first drive source is a motor capable of normal rotation and reverse rotation. For example, when the first drive source is driven by normal rotation, both the first feeding roller 11 and the intermediate roller 13 are in the transport direction F. When the first drive source is driven in reverse rotation (see FIG. 3), only the intermediate roller 13 rotates in the direction of conveyance in the conveyance direction F, and the first feed roller 11 stops. To do. The second feed roller 12 is driven by a drive source (not shown) different from the first drive source.

  When the paper P is fed from the paper tray 7, the first drive source is driven in the normal direction to rotate both the first feed roller 11 and the intermediate roller 13 in the transport direction F and to rotate them. The drive source for the second feeding roller 12 is stopped. On the other hand, when feeding the paper P from the paper tray 8, the first drive source is driven in the reverse direction to rotate only the intermediate roller 13 in the transport direction F and for the second feed roller 12. The drive source is driven. The driving of the first driving source and the driving source for the second feeding roller 12 is controlled by a control unit (not shown).

  As shown in FIG. 3, the guide member 30, the first transport path 50, and the second transport path 56 according to the first embodiment are disposed at a position immediately downstream from the nip position between the intermediate roller 13 and the driven roller 14 b. Is installed. The paper P sent out from the intermediate roller 13 and the driven roller 14 b is transported, for example, along the first transport path 50 and transported toward the transport roller pair 16 installed on the downstream side of the intermediate roller 13.

  The guide member 30, the first transport path 50, and the second transport path 56 are configured as a processing apparatus 100 (see FIGS. 4 and 5) for performing skew removal (skew correction) processing. The operation will be described later in the first embodiment.

  A conveyance roller pair 16 that conveys the paper P is provided on the downstream side of the intermediate roller 13. The transport roller pair 16 includes a transport drive roller 16a that is rotationally driven by a second drive source (not shown), and a transport driven roller 16b that rotates in contact with the transport drive roller 16a.

  In the transport route R1 of the paper P, between the intermediate roller 13 and the transport roller pair 16, a first sensor 21 that detects the end position of the paper P transported on the upstream side of the transport roller pair 16 (see FIG. 3). ) And a second sensor 22 (see FIG. 3) for detecting the end position of the sheet P conveyed on the upstream side of the first sensor 21. In the present embodiment, a lever type sensor is used as the first sensor 21 and the second sensor 22, but an optical sensor may be used, for example.

  On the downstream side (front side of the apparatus, + Y direction) of the transport roller pair 16 is a recording head 10 as a processing unit that performs printing on the transported paper P as a processing unit that performs a predetermined process on the transported medium. Is provided. The paper P is fed to the lower side of the recording head 10 (the upper surface of the platen 25) by the conveying roller pair 16.

  In the present embodiment, the recording unit 10 that performs printing on the transported paper P is associated with the printer unit 2 as a processing unit that executes predetermined processing on the transported medium. However, the processing unit may correspond to a reading unit that reads an image recorded on the conveyed paper P in the scanner unit 3.

  The recording head 10 is held by a carriage 18 configured to be movable in the width direction (X direction) intersecting with the conveyance direction F (+ Y direction) of the paper P. The recording head 10 is configured to perform recording by ejecting ink onto a sheet P sent to a printing area (not shown). An ink cartridge 19 that supplies ink to the recording head 10 is mounted on the carriage 18.

  A discharge roller pair 23 is provided on the downstream side of the recording head 10 (the front side of the apparatus, + Y direction). The discharge roller pair 23 includes a discharge drive roller 23a and a discharge driven roller 23b that rotates in contact with the discharge drive roller 23a. The paper P after recording is nipped between the discharge driving roller 23a and the discharge driven roller 23b, and is discharged to the paper discharge tray 5 provided on the front side of the apparatus.

  The printer 1 of the present embodiment is configured to be capable of duplex printing. As shown in FIG. 3, a transport route R2 for switching back indicated by a two-dot chain line is provided. The paper P that has been recorded on the front surface is fed in the -Y direction by reversely rotating the transport roller pair 16 or the discharge roller pair 23, passes through the transport route R2, and is again driven by the intermediate roller 13. It is nipped by the roller 14a and reversed. Then, the paper P nipped and reversed by the intermediate roller 13 and the driven roller 14a is transported to, for example, the first transport path 50 that is the same as when recording on the front surface. The transport route R2 is a route that passes below the second transport route 56 (see FIG. 3).

<First Embodiment>
4 and 5 are side sectional views showing the processing apparatus 100 according to the first embodiment. Specifically, FIG. 4 is a side cross-sectional view showing a conveyance state for the sheet P having low rigidity in the first conveyance path 50 and the second conveyance path 56 constituting the processing apparatus 100. FIG. 5 is a side cross-sectional view showing a conveyance state for the paper P having high rigidity in the first conveyance path 50 and the second conveyance path 56 constituting the processing apparatus 100.
With reference to FIG. 4 and FIG. 5, the processing apparatus 100 of this embodiment is demonstrated.

  As illustrated in FIGS. 4 and 5, the processing apparatus 100 according to the present embodiment includes a recording head 10 as a processing unit that performs recording (printing) as a predetermined process on the conveyed paper P, and a recording head 10. On the upstream side, a transport roller pair 16 that transports the paper P is provided. As will be described later, the transport roller pair 16 functions as a skew correction roller pair that corrects the skew of the paper P.

  The processing apparatus 100 is further formed on the upstream side of the transport roller pair 16, and allows a first transport path 50 that allows bending when correcting the skew of the transported paper P, and the first transport path on the upstream side of the transport roller pair 16. 50, and a second transport path 56 that allows greater deflection than the first transport path 50 when correcting the skew of the transported paper P.

  Further, the processing apparatus 100 is provided on the upstream side of the first conveyance path 50 and the second conveyance path 56, and guides the guide member 30 that guides the paper P to either the first conveyance path 50 or the second conveyance path 56. It has. In addition, the processing apparatus 100 includes a partition member 55 that partitions the first transport path 50 and the second transport path 56.

  Specifically, the first transport path 50 is configured to be sandwiched between a first transport member 51 that constitutes the upper side and a partition member 55 that constitutes the lower side. Further, the first transport path 50 is configured to be inclined obliquely downward from the vicinity of the nip position between the intermediate roller 13 and the driven roller 14 b toward the transport roller pair 16.

  In the present embodiment, the first transport path 50 is a path for transporting, for example, a sheet P having low rigidity, such as plain paper, toward the transport roller pair 16. The first transport path 50 uniformly narrows the vertical distance (the distance between the first transport member 51 and the partition member 55) to such an extent that the soft paper P does not buckle and lose the transport force. It is configured to secure a space that allows the minimum necessary deflection when correcting the skew of P.

  As shown in FIGS. 3 and 4, a region near the conveyance roller pair 16 on the downstream side of the first conveyance member 51 is provided with a bulging portion 511 that bulges outward. The bulging portion 511 is formed so as to rise in a convex shape over the width direction (X direction) orthogonal to the conveyance direction F of the paper P. Accordingly, the first transport path 50 has a volume in which the space area formed by the bulging portion 511 and the partition member 55 is larger than the space area formed by the portion other than the bulging portion 511 and the partition member 55. It has a configuration.

  Specifically, the second transport path 56 is configured to be sandwiched between a second transport member 57 constituting the lower side and a partition member 55 constituting the upper side. In the present embodiment, the second transport path 56 is a path for transporting the highly rigid paper P, such as cardboard or photographic paper, toward the transport roller pair 16.

  The second transport path 56 is provided below the first transport path 50 in parallel with the first transport path 50. As shown in FIGS. 4 and 5, the second transport path 56 is configured by providing a sufficiently large space in the vertical direction between the partition member 55 and the second transport member 57 compared to the first transport path 50. Yes. Accordingly, it is possible to allow a larger deflection than that of the first transport path 50 when correcting the skew of the transported paper P.

  Near the upstream side of the transport driving roller 16a of the transport roller pair 16, a transport guide 40 extending from the lower side of the downstream end of the second transport member 57 is installed to guide the paper P to the transport roller pair 16, In double-sided printing, the paper P is guided to the transport route R2.

  The guide member 30 of the present embodiment is configured by a flexible plate-like member arranged in a posture that guides the first transport path 50. Specifically, a thin plate-like member (so-called PET film) made of polyethylene terephthalate is used. The guide member 30 is arranged in such a posture that one tip is fixed and the other tip is connected to the upstream tip of the partition member 55, thereby guiding the guide member 30 to the first transport path 50. It has become.

  Note that the guide member 30 does not bend even when the leading end of the paper P to be fed comes into contact with and presses the paper P with low rigidity such as plain paper. Further, in the case of a highly rigid paper P such as cardboard or photographic paper, when the leading end of the paper P to be sent comes into contact with and presses the guide member 30, the guide member 30 loses the rigidity of the paper P. As a result, the sheet P is guided to the second conveyance path 56, and the sheet P advances into the second conveyance path 56. As described above, the guide member 30 of the present embodiment guides the first transport path 50 and the second transport path 56 by switching the path according to the rigidity of the paper P.

  Next, with reference to FIG. 4, an operation in which a low-rigidity paper P such as plain paper is transported to the transport roller pair 16 will be described from a situation where it is sent from the nip position between the intermediate roller 13 and the driven roller 14 a. .

  The sheet P delivered from the nip position between the intermediate roller 13 and the driven roller 14a slides on the inner peripheral surface of the guide member 26 (see FIG. 3) and advances along the outer surface of the intermediate roller 13. The guide member 26 is a member that is installed on the outer periphery of the intermediate roller 13 and guides the delivery of the paper P. Then, the paper P that has slid along the inner peripheral surface of the guide member 26 and has advanced along the outer surface of the intermediate roller 13 is sandwiched by the drive of the intermediate roller 13 and the driven roller 14b and is sent out from the nip position. Is done. The delivered paper P is pressed by the leading end of the paper P coming into contact with the guide member 30.

  Since the sheet P has low rigidity and cannot guide the guide member 30, the sheet P slides on the surface of the guide member 30 and advances into the first transport path 50. The sheet P transported in the first transport path 50 is transported while being bent without buckling due to an appropriate gap between the first transport member 51 and the partition member 55, and hits the nip position of the transport roller pair 16. At this time, the conveyance roller pair 16 stops driving.

  In this state, there may be a so-called skew in which the paper P is sent obliquely with respect to the transport path. Therefore, in this embodiment, as the skew correction operation, the intermediate roller 13 continues to be driven for a predetermined period. Since the downstream end of the sheet P is stopped at the nip position of the conveyance roller pair 16, the intermediate roller 13 is further driven, so that the excessive sheet P is sent into the first conveyance path 50. . As a result, the paper P is continuously pushed from the upstream side to the downstream side, and is more bent in the Z direction perpendicular to the transport direction F.

  However, in the present embodiment, the first transport path 50 is configured such that the region including the bulging portion 511 and surrounded by the partition member 55 is wider than the other regions. Therefore, the paper P can be bent without buckling in the space region widened by the bulging portion 511. By performing such an operation, it is possible to align the leading ends of the paper P and to remove skew (skew correction).

  After the skew correction, the transport roller pair 16 (transport drive roller 16a) starts to drive in the transport direction F, whereby the skew-corrected paper P is sandwiched and transported by the transport roller pair 16. The subsequent operations including the recording by the recording head 10 can be appropriately performed.

  Next, with reference to FIG. 5, an operation in which a highly rigid paper P such as thick paper is transported to the transport roller pair 16 will be described from a position where the intermediate roller 13 and the driven roller 14 b are sent from the nip position. Note that the paper P sent out from the nip position between the intermediate roller 13 and the driven roller 14a is the same as described in FIG.

  When the paper P is delivered from the nip position between the intermediate roller 13 and the driven roller 14b, the delivered paper P is pressed by the leading end of the paper P coming into contact with the guide member 30.

  The sheet P has high rigidity, and bends the guide member 30 when pressed against the guide member 30. As a result, the guide member 30 assumes a posture for guiding the paper P to the second transport path 56. Then, the sheet P with the guide member 30 bent is advanced into the second transport path 56. The second transport path 56 is configured by providing a sufficiently large space region in the vertical direction between the partition member 55 and the second transport member 57. The sheet P transported in the second transport path 56 is transported while being bent in a sufficiently large space region, and hits the nip position of the transport roller pair 16. At this time, the conveyance roller pair 16 stops driving.

  In this state, there may be a so-called skew in which the paper P is sent obliquely with respect to the transport path. Therefore, in the present embodiment, as the skew correction operation, the intermediate roller 13 continues to be driven for a predetermined period as described above. Since the downstream end of the paper P is stopped at the nip position of the transport roller pair 16, the intermediate roller 13 is further driven, so that the extra paper P is sent into the second transport path 56. . As a result, the paper P is continuously pushed from the upstream side to the downstream side, and is more bent in the Z direction perpendicular to the transport direction F.

  In the present embodiment, a sufficiently large space area is secured in the second transport path 56. Therefore, it is possible to bend the paper P in this sufficiently large space area without buckling the paper P including the paper P that has been sent out excessively. By performing such an operation, it is possible to align the leading ends of the paper P and to remove skew (skew correction).

  After the skew correction, the transport roller pair 16 (transport drive roller 16a) starts to drive in the transport direction F, whereby the skew-corrected paper P is sandwiched and transported by the transport roller pair 16. The subsequent operations including the recording by the recording head 10 can be appropriately performed.

  As described above, according to the processing apparatus 100 according to the present embodiment, the following effects can be obtained.

The processing apparatus 100 according to the present embodiment includes the transport roller pair 16, the first transport path 50, the second transport path 56, and the guide member 30. The first transport path 50 is formed on the upstream side of the transport roller pair 16 and is configured to allow bending when correcting the skew of the transported paper P. Further, the second transport path 56 is formed in parallel with the first transport path 50 on the upstream side of the transport roller pair 16 and allows a larger deflection than the first transport path 50 when correcting the skew feeding of the transported paper P. It is configured as follows. Further, the guide member 30 guides by switching the path between the first transport path 50 and the second transport path 56 according to the rigidity of the paper P.
Thereby, when the rigidity of the paper P is high, the paper P can be largely deformed by being guided to the second transport path 56 that allows a large amount of bending. When the sheet P has low rigidity, it is guided to the first conveyance path 50 that allows bending during skew correction so that the conveyance force is not lost due to buckling. Is possible.
As described above, in the first transport path 50 and the second transport path 56 from which the paper P is guided, the paper P at the time of skew correction can be bent inside each transport path without buckling. Skew correction can be performed.
Accordingly, it is not necessary to change the length of the bending space or the like as in the prior art, and the two feeding paths (the first conveying path 50 and the second conveying path 56) are selectively used according to the rigidity of the paper P. Correction can be made. For this reason, the variable mechanism as in the prior art and the control for operating this mechanism are not complicated, and skew correction can be performed easily and reliably.

  According to the processing apparatus 100 of the present embodiment, the guide member 30 is formed of a flexible plate-like member such as a PET film, and is disposed in a posture to guide the first transport path 50. Here, when the sheet P having low rigidity comes into contact with and presses against the guide member 30, the guide member 30 is not bent, and thus the sheet P is guided to the first transport path 50. Further, when the highly rigid paper P abuts against and presses against the guide member 30, the guide member 30 bends, and the paper P is guided to the second transport path 56. Thus, the posture of the sheet P can be easily guided to the first transport path 50 and the second transport path 56 due to the rigidity of the paper P, and the guide member 30 can be realized with an easy configuration.

  According to the processing apparatus 100 of this embodiment, the partition member 55 which partitions a conveyance path | route is provided, and the 1st conveyance path | route 50 and the 2nd conveyance path | route 56 are comprised. By such a partition member 55, the 1st conveyance path 50 and the 2nd conveyance path 56 can be comprised compactly, and size reduction of the processing apparatus 100 can be achieved.

Second Embodiment
FIG. 6 is a side sectional view showing a processing apparatus 100A according to the second embodiment. Specifically, FIG. 6 is a side sectional view showing the state of the guide member 30A that guides the processing apparatus 100A by switching the path between the first transport path 50 and the second transport path 56 according to the rigidity of the paper P. is there. The guide member 30A in a posture for guiding the paper P to the first transport path 50 is indicated by a solid line, and the guide member 30A in a posture for guiding the paper P to the second transport path 56 is indicated by a two-dot chain line. Further, the paper P transported in the first transport path 50 is indicated by a one-dot chain line, and the paper P transported in the second transport path 56 is indicated by a two-dot chain line.
With reference to FIG. 6, the processing apparatus 100A of the present embodiment will be described. In addition, about the component same as 1st Embodiment, the same code | symbol is attached and the overlapping description is abbreviate | omitted.

The difference of the second embodiment from the first embodiment is as follows.
The guide member 30 of the first embodiment uses a flexible plate-like member (PET film in the first embodiment). When the rigidity of the paper P is low, the guide member 30 guides the paper P to the first transport path 50 without bending, and when the rigidity of the paper P is high, the guiding member 30 is bent to cause the paper P to be bent. Is guided to the second transport path 56.

  In contrast, the guide member 30A of the second embodiment is configured by a plate-like member as shown in FIG. One tip is fixed to a rotation shaft 33 extending in the X direction so as to freely rotate. In addition, the guide member 30 </ b> A is pressed so as to maintain the posture of guiding the paper P to the first transport path 50. In this state, the other leading end portion of the guiding member 30 </ b> A is disposed so as to be connected to the upstream leading end portion of the partition member 55, so that the sheet P is guided to the first transport path 50. Yes.

  In this embodiment, a torsion spring 31 is used as a member that presses the guide member 30A. The torsion spring 31 is rotatably installed on the rotation shaft 33, one end is fixed to another fixing member (not shown), and the other end is fixed to the guide member 30A. The guide member 30A pressed by the torsion spring 31 is brought into contact with a contact portion (not shown) at one end so as to maintain the posture of guiding the paper P to the first transport path 50. In this state, further rotation of the spring 31 in the opening direction is restricted.

The guidance of the paper P by the guide member 30A will be described.
The operation when the low-rigidity paper P such as plain paper is sent from the nip position between the intermediate roller 13 and the driven roller 14b and the leading end of the paper P is pressed against the guide member 30A is as follows.

  The pressing force applied to the guide member 30A by the paper P cannot resist the pressing force applied to the guide member 30A by the torsion spring 31. Therefore, the guide member 30A is in a state indicated by a solid line in FIG. Thereby, the paper P slides on the surface of the guide member 30A and is guided to the first transport path 50 as indicated by a one-dot chain line.

  On the other hand, the operation when the highly rigid paper P such as thick paper is sent from the nip position between the intermediate roller 13 and the driven roller 14b and the leading end of the paper P abuts against the guide member 30A and presses is as follows. It becomes.

  The pressing force applied to the guiding member 30 </ b> A by the paper P can resist the pressing force applied to the guiding member 30 </ b> A by the torsion spring 31. Therefore, the guide member 30A can be rotated (displaced) around the rotation shaft 33 and moved in the counterclockwise direction, as indicated by a two-dot chain line in FIG. As a result, the paper P is guided to the second transport path 56 as indicated by a two-dot chain line.

  In addition, since the operation | movement which is conveyed through the 1st conveyance path | route 50 or the 2nd conveyance path | route 56, reaches the conveyance roller pair 16, and performs skew feeding correction is the same as that of 1st Embodiment, description is abbreviate | omitted.

  As described above, according to the processing apparatus 100A according to the present embodiment, the following effects can be obtained in addition to the same effects as the processing apparatus 100 of the first embodiment.

  According to the processing apparatus 100A of the present embodiment, the guide member 30A is configured by a plate-like member, and in the present embodiment, the torsion spring 31 is used to maintain the posture of guiding to the first transport path 50. Pressed. Here, when the low-rigidity paper P abuts against and is pressed against the guide member 30A, the paper P cannot enter the first conveying path 50 because it cannot resist the pressing force applied to the guide member 30A by the torsion spring 31. Be guided. Further, when the highly rigid paper P is pressed against the guide member 30A, the paper P can be rotated (displaced) against the pressing force applied to the guide member 30A by the torsion spring 31. It is guided to the second transport path 56. As described above, the guide member 30A that can be easily guided to the first transport path 50 and the second transport path 56 by the rigidity of the paper P can be realized with an easy configuration.

<Third Embodiment>
FIG. 7 is a plan view showing a processing apparatus 100B according to the third embodiment. Specifically, FIG. 7 is a view of the partition member 55A viewed from above in the processing apparatus 100B. In FIG. 7, the paper P and the intermediate roller 13 are also shown. The configuration other than the partition member 55A is the same as that of the first embodiment.
With reference to FIG. 7, the processing apparatus 100B of the present embodiment will be described. In addition, description is abbreviate | omitted about the structure part same as 1st Embodiment.

The third embodiment is different from the first embodiment in the following points.
The partition member 55 of the first embodiment is a plate-like member configured to partition the first transport path 50 and the second transport path 56, and the planar shape is also configured to be substantially rectangular. Specifically, in the partition member 55, the upstream end in the transport direction F is formed in parallel with the X direction (scanning direction).

  On the other hand, in the partition member 55A of the present embodiment (third embodiment), a protruding portion 551 that is inclined and protrudes upstream is formed at the upstream end in the transport direction F. Specifically, the protrusion 551 is formed in a substantially triangular shape in a plan view in a form that protrudes from the central portion on the upstream side with respect to the entire region of the end portion in the X direction on the upstream side.

  When transported, the paper P is transported in a form in which both end portions in the X direction (both end portions in the width direction) that do not directly touch the intermediate roller 13 and the driven roller 14b bend downward as compared with the central portion. . When transported in such a form, for example, the sheet P has a surface height of the guiding member 30 while the rigidity of the sheet P is an intermediate height between plain paper and thick paper and the guiding member 30 is also bent halfway. , The end abuts against the partition member 55A on the downstream side. More specifically, the central portion of the paper P in the X direction is positioned above the protruding portion 551 of the partition member 55A, and both end portions in the X direction are positioned below the protruding portion 551 and contact the protruding portion 551. It will be in contact.

  However, even if it contacts in such a state, as shown in FIG. 7, the protrusion part 551 of the partition member 55A is formed in a triangular shape on a plane in a form protruding from the center part on the upstream side. . With this configuration, even if both ends in the X direction of the paper P are positioned below the protrusion 551, the both ends in the X direction slide on the inclined surface of the protrusion 551 by being conveyed. By being transported, it is guided upward in the protruding portion 551, and as a result, guided into the first transport path 50.

  As described above, according to the processing apparatus 100B according to the present embodiment, the following effects can be obtained in addition to the same effects as the processing apparatus 100 of the first embodiment.

  According to the processing apparatus 100B of the present embodiment, the upstream end of the partition member 55A in the transport direction F is formed with a protruding portion 551 that protrudes inclined toward the upstream side. With this configuration, the sheet P is conveyed with the rigidity of the sheet P being intermediate height between the plain sheet and the thick sheet, and the guide member 30 being bent halfway. Even when both ends of the paper P in the X direction are positioned below the protrusion 551, the sheet P is conveyed while sliding on the inclined surface of the protrusion 551. As a result, it can be guided into the first transport path 50. Therefore, even if the paper P has a bend in the X direction (width direction), the paper P can be reliably guided to the first transport path 50 and the second transport path 56.

<Fourth embodiment>
8 and 9 are side sectional views showing a processing apparatus 100C according to the fourth embodiment. Specifically, FIG. 8 is a side cross-sectional view showing a conveyance state for the sheet P having low rigidity in the route changing unit 60 (third conveyance path 61) constituting the processing apparatus 100C. FIG. 9 is a side cross-sectional view showing a conveyance state for the sheet P having high rigidity in the route changing unit 60 (third conveyance path 61) constituting the processing apparatus 100C.
With reference to FIGS. 8 and 9, the processing apparatus 100C of the present embodiment will be described. In addition, about the same structure part as 1st Embodiment, the same code | symbol is attached and the overlapping description is abbreviate | omitted.

  In 1st Embodiment, the guide member 26 along the outer periphery of the intermediate roller 13 is comprised by the outer peripheral side of the intermediate roller 13 from the driven roller 14a to the driven roller 14b. The sheet P sent from the nip position between the intermediate roller 13 and the driven roller 14a slides on the inner peripheral surface of the guide member 26 according to the rotation of the intermediate roller 13 in the transport direction F. However, it is conveyed in the direction of the driven roller 14b.

  On the other hand, in this embodiment, the guide member 26A for guiding the paper P delivered from the driven roller 14a is installed with a slight length. On the downstream side, a route changing unit 60 that changes the route of the paper P is configured.

  The course changing unit 60 forms a third conveyance path 61 that conveys the paper P to the conveyance roller pair 16 side and a part of the third conveyance path 61 of the course changing unit 60 and can be displaced according to the rigidity of the paper P. And a route changing member 62. Further, the course changing unit 60 of the present embodiment includes a pressing member 64 that presses the course changing member 62 toward the inside of the third transport path 61. The course changing unit 60 includes a curved bending part 63, and the course changing member 62 is disposed outside the bending part 63. The third transport path 61 is configured to be surrounded by the intermediate roller 13 and the bending portion 63.

  The guide member 30B of this embodiment switches and guides the first transport path 50 and the second transport path 56 according to the rigidity of the paper P, similarly to the guide member 30 of the first embodiment. However, unlike the configuration of the guide member 30 of the first embodiment, the guide member 30B of the present embodiment is fixed to the course changing unit 60. A rotating shaft 65 having an axial center in the X direction is installed at a connection site between the course changing unit 60 and the guide member 30B. Therefore, the processing apparatus 100C includes the course changing unit 60, the rotation shaft 65, and the guide member 30B. In addition, since the course changing unit 60 and the guide member 30B are integrally formed, it is possible to rotate in the same direction with the rotation shaft 65 as a rotation center.

  With reference to FIG. 8, an operation in which the paper P is transported into the first transport path 50 from the nip position between the intermediate roller 13 and the driven roller 14 a will be described. Note that the diagram shown in FIG. 8 shows a conveyance state for a sheet P with low rigidity such as plain paper.

  The sheet P sent out from the nip position between the intermediate roller 13 and the driven roller 14a is guided by the guide member 26A following the rotation of the intermediate roller 13 in the transport direction F, and is guided by the third transport path 61. It is conveyed to. Since the sheet P transported to the third transport path 61 has low rigidity and cannot resist the pressing force of the pressing member 64, the course changing member 62 can be rotated around the rotating shaft 65. It cannot be carried and is conveyed in the third conveyance path 61.

  In this state, as shown in FIG. 8, the guide member 30 </ b> B is in a state where the downstream end is located near the upstream end of the first transport member 51 of the first transport path 50. The sheet P transported in the third transport path 61 is sent from the nip position between the intermediate roller 13 and the driven roller 14b, and then transported into the first transport path 50 as shown in FIG. Note that operations such as skew correction of the sheet P conveyed in the first conveyance path 50 are the same as those in the first embodiment.

  In the present embodiment, the guide member 30B is in a state where the downstream end is located near the upstream end of the first transport member 51 of the first transport path 50, but this is not the only state. However, the positional relationship is not limited as long as the transported paper P can be guided to the first transport path 50.

  With reference to FIG. 9, the operation of transporting the paper P into the second transport path 56 from the nip position between the intermediate roller 13 and the driven roller 14a will be described. Note that the diagram shown in FIG. 9 shows a conveyance state for a sheet P having high rigidity such as thick paper.

  The sheet P sent out from the nip position between the intermediate roller 13 and the driven roller 14a is guided by the guide member 26A following the rotation of the intermediate roller 13 in the transport direction F, and is guided by the third transport path 61. It is conveyed to. Since the sheet P conveyed to the third conveyance path 61 has high rigidity, the sheet P slides against the pressing force of the pressing member 64 while pushing the bending portion 63 (the course changing member 62). .

  As a result of this operation, as shown in FIG. 9, the course changing member 62 rotates in the counterclockwise direction around the rotation shaft 65 to be displaced outside the third transport path 61 (third transport path). 61), the guide member 30B integrated with the course changing member 62 is also displaced in the same direction (counterclockwise direction) around the rotation shaft 65.

  In this state, as shown in FIG. 9, the guide member 30 </ b> B is in a state where the downstream end is positioned near the upstream end of the partition member 55. Therefore, after the sheet P conveyed in the third conveyance path 61 is sent from the nip position between the intermediate roller 13 and the driven roller 14b, it is guided to the guiding member 30B as shown in FIG. It is transported into the transport path 56. Note that operations such as skew correction of the sheet P conveyed in the second conveyance path 56 are the same as those in the first embodiment.

  As described above, according to the processing apparatus 100C according to the present embodiment, the following effects can be obtained in addition to the same effects as the processing apparatus 100 according to the first embodiment.

According to the processing apparatus 100 </ b> C of the present embodiment, the route changing unit 60 that changes the route of the paper P is configured. Further, the course change unit 60 forms a third conveyance path 61 that conveys the paper P to the conveyance roller pair 16 side and a part of the third conveyance path 61 of the course change unit 60, and depends on the rigidity of the paper P. And a path change member 62 that can be displaced. Further, the guide member 30B is fixed to the course changing unit 60, and a rotating shaft 65 having an axis center in the X direction is installed at a connection portion between the course changing unit 60 and the guide member 30B. And since the course change part 60 and the guidance member 30B are comprised integrally, it rotates in the same direction centering | focusing on the rotation axis | shaft 65. As shown in FIG.
With this configuration, by utilizing the difference in rigidity of the paper P, the guide member 30B is displaced by displacing the third transport path 61 (the course changing unit 60), and as a result, the paper P is transported in the first transport. It is possible to guide to the route 50 and the second transport route 56.
Accordingly, the skew correction can be reliably performed with an easy configuration that does not require power or control without changing the length of the bending space or the like as in the prior art.

  According to the processing apparatus 100 </ b> C of the present embodiment, when the paper P has high rigidity, the route changing member 62 is displaced to the outside of the third conveyance path 61 of the route changing unit 60, so that the guide member 30 </ b> B The posture is guided to the second transport path 56. Thereby, the sheet P having high rigidity and high rigidity can be guided to the second transport path 56.

  According to the processing apparatus 100 </ b> C of the present embodiment, the course changing unit 60 includes the pressing member 64 that presses the course changing member 62 toward the inside of the third transport path 61, so that the course changing unit 60 corresponds to the rigidity of the paper P. Thus, the course changing member 62 (guidance member 30B) can be appropriately displaced.

  According to the processing apparatus 100 </ b> C of the present embodiment, the course changing member 62 is displaced against the pressing of the pressing member 64 due to the rigidity of the paper P, so that the paper P is appropriately transferred to the first transport path 50 and the second transport path 50. It can be guided to the transport path 56. In addition, the pressing force of the pressing member 64 can be set appropriately according to the rigidity of the paper P when switching between the first transport path 50 and the second transport path 56.

  According to the processing apparatus 100 </ b> C of the present embodiment, the course changing unit 60 includes the curved curved part 63, and the course changing member 62 is disposed outside the curved part 63, whereby the paper P is third. When transported along the transport path 61, the transport is smoothly performed by sliding the curved portion 63 having a curved shape.

<Fifth Embodiment>
10 and 11 are side sectional views showing a processing apparatus 100D according to the fifth embodiment. Specifically, FIG. 10 is a side cross-sectional view showing a conveyance state for the sheet P having low rigidity in the route changing unit 60 (third conveyance path 61) constituting the processing apparatus 100D. FIG. 11 is a side cross-sectional view illustrating a conveyance state for the sheet P having high rigidity in the route changing unit 60 (third conveyance path 61) constituting the processing apparatus 100D.
With reference to FIGS. 10 and 11, the processing apparatus 100D of the present embodiment will be described. In addition, about the component same as 4th Embodiment, the same code | symbol is attached and the overlapping description is abbreviate | omitted.

This embodiment differs from the processing apparatus 100C of the fourth embodiment in the following points.
In the fourth embodiment, the course changing unit 60 (the course changing member 62) and the guide member 30B are integrally configured around the rotation shaft 65. On the other hand, in this embodiment, the course changing unit 60 (the course changing member 62) and the guide member 30C are configured as separate bodies. Further, the course changing unit 60 and the guide member 30 </ b> C configured separately are connected by a link mechanism 80.

  The course changing unit 60 of this embodiment includes a course changing member 62, a bending portion 63, and a pressing member 64, as in the fourth embodiment. Further, the course changing member 62 is fixed to the rotation shaft 65 and rotates around the rotation shaft 65 as the rotation center with respect to the highly rigid paper P as in the fourth embodiment.

  The guide member 30 </ b> C of the present embodiment is configured to be provided with a rotating shaft 66 near the upstream end of the partition member 55 and fixed to the rotating shaft 66. The rotation shaft 66 has an axis center in the X direction, and the guide member 30C rotates about the rotation shaft 66, whereby the paper P is moved into the first conveyance path 50 and the second conveyance path 56. Induce.

  As described above, in this embodiment, the link mechanism 80 is provided, and the course changing unit 60 and the guide member 30C are connected and operated. The link mechanism 80 includes a first arm 81, a second arm 82, a first joint 83, a second joint 84, and a rotating shaft 85.

  Specifically, as shown in FIG. 10, one end of the first arm 81 and the upstream end of the course changing member 62 are connected by a first joint 83. Further, the other end of the first arm 81 and one end of the second arm 82 are connected by a second joint 84. The second arm 82 is fixed with a pivot shaft 85 in the middle of the arm. The rotation shaft 85 has an axis center in the X direction. At the other end of the second arm 82, a sliding portion 82a that slides (swings) on the lower surface of the guide member 30C is formed by operating the link mechanism 80.

  The guide member 30C has a biasing force that biases the sliding portion 82a side by a biasing member (not shown). The guide member 30 </ b> C follows the movement of the link mechanism 80 and the sliding portion 82 a slides, rotates about the rotation shaft 66, and moves the paper P between the first transport path 50 and the second transport path 50. Guide to the transport path 56.

  The link mechanism 80 is formed outside both ends of the paper P in the X direction (width direction), and each member constituting the link mechanism 80 is operated to contact the paper P or to the intermediate roller 13. And the operation of the driven roller 14b is not affected.

  With reference to FIG. 10, an operation in which the paper P is transported into the first transport path 50 from the nip position between the intermediate roller 13 and the driven roller 14 a will be described. Note that the diagram shown in FIG. 10 shows a conveyance state for a sheet P having low rigidity such as plain paper.

  The sheet P sent out from the nip position between the intermediate roller 13 and the driven roller 14a is guided by the guide member 26A following the rotation of the intermediate roller 13 in the transport direction F, and is guided by the third transport path 61. It is conveyed to. Since the sheet P transported to the third transport path 61 has low rigidity and cannot resist the pressing force of the pressing member 64, the course changing member 62 can be rotated around the rotating shaft 65. It cannot be carried and is conveyed in the third conveyance path 61.

  In this state, as shown in FIG. 10, the guide member 30 </ b> C is in a state of guiding the paper P to the first transport path 50 depending on the position of the sliding portion 82 a. Therefore, after the sheet P conveyed in the third conveyance path 61 is sent from the nip position between the intermediate roller 13 and the driven roller 14b, it is guided to the upper surface side of the guide member 30C as shown in FIG. Then, it is transported into the first transport path 50. Note that operations such as skew correction of the sheet P conveyed in the first conveyance path 50 are the same as those in the first embodiment.

  With reference to FIG. 11, an operation in which the paper P is transported into the second transport path 56 from the nip position between the intermediate roller 13 and the driven roller 14 a will be described. In addition, the figure shown in FIG. 11 has shown the conveyance state with respect to the paper P with high rigidity, such as a thick paper.

  The sheet P sent out from the nip position between the intermediate roller 13 and the driven roller 14a is guided by the guide member 26A following the rotation of the intermediate roller 13 in the transport direction F, and is guided by the third transport path 61. It is conveyed to. Since the sheet P conveyed to the third conveyance path 61 has high rigidity, the sheet P slides against the pressing force of the pressing member 64 while pushing the bending portion 63 (the course changing member 62). .

  By this operation, as shown in FIG. 11, the course changing member 62 is displaced counterclockwise around the rotation shaft 65 to be displaced outside the third transport path 61 (third transport path). 61 is displaced to widen). Thereby, the link mechanism 80 operates.

  In the link mechanism 80, when the course changing member 62 is displaced to the outside of the third transport path 61, the first arm 81 connected to the first joint 83 moves in the general −Y direction. As the first arm 81 moves, the second arm 82 connected to the second joint 84 rotates counterclockwise about the rotation shaft 85. Note that the sliding portion 82 a formed at the other end of the second arm 82 rotates counterclockwise about the rotation shaft 85.

  By the rotation of the sliding portion 82a in the counterclockwise direction, the abutting guide member 30C rotates in the counterclockwise direction around the rotation shaft 66. The rotation of the guide member 30C causes the guide member 30C to be in a state of guiding the paper P to the second transport path 56.

  Through the above operation, the sheet P transported in the third transport path 61 is sent out from the nip position between the intermediate roller 13 and the driven roller 14b, and then on the lower surface side of the guide member 30C as shown in FIG. It is guided and transported into the second transport path 56. Note that operations such as skew correction of the sheet P conveyed in the second conveyance path 56 are the same as those in the first embodiment.

  In addition, when the paper P changes from the paper P with high rigidity to the paper P with low rigidity, the path changing member 62 is pressed toward the inside of the third transport path 61 by the pressing force of the pressing member 64. Thus, the state returns to the state of the third transport path 61 in which the sheet P having low rigidity is transported. By this operation, the link mechanism 80 operates.

  In the link mechanism 80, when the course changing member 62 is displaced to the inside of the third transport path 61, the first arm 81 connected to the first joint 83 moves in the + Y direction. As the first arm 81 moves, the second arm 82 connected to the second joint 84 rotates clockwise about the rotation shaft 85. Note that the sliding portion 82 a formed at the other end of the second arm 82 rotates in the clockwise direction about the rotation shaft 85.

  By the clockwise rotation of the sliding portion 82a, the abutting guide member 30C rotates in the clockwise direction around the rotation shaft 66. By this rotation of the guide member 30C, the guide member 30C enters a state (state shown in FIG. 10) for guiding the paper P to the first transport path 50.

  As described above, according to the processing apparatus 100D according to the present embodiment, the following effects can be obtained in addition to the same effects as the processing apparatus 100 according to the fourth embodiment.

  According to the processing apparatus 100D of the present embodiment, even when the route changing unit 60 that changes the route of the paper P and the guide member 30C are connected by the link mechanism 80, the processing device 100D can be appropriately controlled by the difference in rigidity of the paper P. The guide member 30 </ b> C can be displaced and can be guided to the first transport path 50 and the second transport path 56.

  In the first to fifth embodiments described above, when skew correction is performed, the transport driving roller 16a is not rotated. However, skew correction can also be reliably performed by rotating the transport driving roller 16a in the direction opposite to the transport direction F and rotating the intermediate roller 13 in the transport direction in the transport direction F together.

  In the first to fifth embodiments described above, the first transport path 50 is provided with the bulging portion 511 on the downstream side of the first transport member 51, and the deflection of the paper P during skew correction is allowed. doing. However, the bulging portion 511 may not be provided. In this case, it is only necessary that the volume of the first transport path 50 can allow the excessively fed paper P at the time of skew correction to bend without buckling.

  The configuration of the protrusion 551 formed on the partition member 55A in the third embodiment described above may be applied to the partition member 55 in the first, second, fourth, and fifth embodiments, and the same effect is obtained. Can play.

  The processing devices 100 and 100A to 100D from the first embodiment to the fifth embodiment described above may be provided as the skew correction device, and skew correction can be performed without performing complicated mechanisms and controls.

  The processing apparatuses 100, 100A to 100D from the first embodiment to the fifth embodiment described above may be provided as recording apparatuses including the printer of the present embodiment, and the skew feeding of the paper P is performed by the processing apparatus with an easy configuration. By performing the correction, it is possible to solve problems such as the occurrence of a paper jam and the printing not being performed at a predetermined position.

  The contents derived from the above-described embodiment will be described below.

  The processing apparatus includes a processing unit that performs a predetermined process on the conveyed medium, a skew correction roller pair that corrects the skew of the medium at the nip position on the upstream side of the processing unit, and an upstream of the skew correction roller pair. The first conveyance path that is formed on the side and allows bending when correcting the skew of the conveyed medium, and the medium that is formed in parallel with the first conveyance path on the upstream side of the skew correction roller pair and is conveyed Provided on the upstream side of the second conveyance path and the first conveyance path and the second conveyance path that allow a larger deflection than the first conveyance path at the time of correction, and the medium is either the first conveyance path or the second conveyance path And a guide member that guides the first and second transport paths according to the rigidity of the medium.

According to this configuration, the processing apparatus includes the skew feeding correction roller pair, the first transport path, the second transport path, and the guide member. The first transport path is formed on the upstream side of the skew correction roller pair, and is configured to allow bending when the transported medium is corrected for skew. The second transport path is formed in parallel with the first transport path on the upstream side of the skew correction roller pair, and is configured to allow greater deflection than the first transport path when correcting the skew of the transported medium. Has been. Further, the guide member guides by switching the path between the first transport path and the second transport path according to the rigidity of the medium.
Thereby, when the medium has high rigidity, the medium can be largely deformed by being guided to the second transport path that allows large deflection. In addition, when the medium rigidity is low, the minimum necessary deformation is possible by being guided to the first transport path that allows bending during skew correction so that the transport force is not lost due to buckling. It becomes.
As described above, in the first transport path and the second transport path in which the medium is guided, the medium at the time of skew correction can be bent inside each transport path without buckling, so that skew correction can be performed. Can be done appropriately.
Therefore, it is not necessary to change the length of the bending space as in the prior art, and skew correction can be performed by using two transport paths (first transport path and second transport path) according to the rigidity of the medium. . For this reason, the variable mechanism as in the prior art and the control for operating this mechanism are not complicated, and skew correction can be performed easily and reliably.

  In the above processing apparatus, the guide member is composed of a flexible plate-like member arranged in a posture to guide to the first transport path, and bends in accordance with the rigidity of the medium, so that the second transport path It is preferable to be in a guiding posture.

  According to this configuration, the guide member is formed of a flexible plate-like member, and is disposed in a posture for guiding to the first transport path. Here, when a medium having low rigidity comes into contact with and presses the guide member, the guide member does not bend, so the medium is guided to the first transport path. In addition, when a medium having high rigidity comes into contact with and presses the guide member, the guide member bends, so that the medium is guided to the second transport path. In this way, the guide member can be easily guided to the first transport path and the second transport path due to the rigidity of the medium, and the guide member can be realized with an easy configuration.

  In the above processing apparatus, the guide member is configured by a plate-like member that is pressed so as to maintain a posture of guiding to the first transport path, and is displaced against the press by the rigidity of the medium. The posture is preferably guided to the conveyance path.

  According to this configuration, the guide member is formed of a plate-like member and is pressed by, for example, a spring or the like so as to maintain the posture of guiding to the first transport path. Here, when a medium with low rigidity comes into contact with and presses against this guide member, the medium cannot be resisted against the pressing force on the guide member, so the medium is guided to the first transport path. Further, when a medium having high rigidity abuts against the guide member and is pressed, the medium can be rotated (displaced) against the pressure on the guide member, so that the medium is guided to the second transport path. Thus, the guide member that can be easily guided to the first transport path and the second transport path by the rigidity of the medium can be realized with an easy configuration.

  The processing apparatus includes a path changing unit that changes the path of the medium on the upstream side of the guide member in the transport direction, and includes a transport path that transports the medium to the skew correction roller opposite side, and a transport path of the path changing unit. A path changing member that forms a part and is displaceable according to the rigidity of the medium, and the guide member switches the path between the first transport path and the second transport path in accordance with the displacement of the path changing member. It is preferable.

  According to this configuration, the processing apparatus includes a route change unit that changes the route of the medium, and the route change unit includes a conveyance path that conveys the medium to the skew correction roller opposite side, and a conveyance path of the route change unit. A course changing member that forms a part and can be displaced according to the rigidity of the medium. Further, the guide member uses the difference in rigidity of the medium to displace the guide member by displacing the route changing unit, and consequently guides the medium to the first transport path and the second transport path. can do. Accordingly, the skew correction can be reliably performed with an easy configuration that does not require power or control without changing the length of the bending space or the like as in the prior art.

  In the above processing apparatus, it is preferable that the route changing member is displaced to the outside of the conveyance path of the route changing unit by the medium so that the guide member is guided to the second conveyance path.

  According to this configuration, when the medium has high rigidity, the route changing member is displaced to the outside of the conveyance path of the route changing unit so that the guide member is guided to the second conveyance path. As a result, a medium having high rigidity and high rigidity can be guided to the second transport path.

  In the processing apparatus, it is preferable that the course changing unit includes a pressing member that presses the course changing member toward the inside of the transport path.

  According to this configuration, the course changing unit includes the pressing member that presses the course changing member toward the inside of the conveyance path, so that the course changing member (guidance member) is appropriately set according to the rigidity of the medium. Can be displaced.

  In the above processing apparatus, it is preferable that the path changing member is displaced against the pressing of the pressing member due to the rigidity of the medium.

  According to this configuration, the path changing member can be appropriately guided to the first transport path and the second transport path by being displaced against the pressing of the pressing member due to the rigidity of the medium. In addition, the pressing force of the pressing member can be set appropriately according to the rigidity of the medium when switching between the first transport path and the second transport path.

  In the processing apparatus, it is preferable that the course changing unit includes a curved part having a curved shape, and the course changing member is disposed outside the bending part.

  According to this configuration, the course changing unit includes the curved curved part, and the course changing member is disposed outside the curved part, so that when the medium is transported along the transport path, the curved curved part is provided. By sliding or the like, it is smoothly transported.

  The processing apparatus includes a partition member that partitions the first transport path and the second transport path, and an upstream end in the transport direction of the partition member is formed with a protruding portion that is inclined and protrudes upstream. It is preferable.

  According to this configuration, the partition member that partitions the first transport path and the second transport path is provided, and a protruding portion that is inclined and protrudes upstream is formed at the upstream end of the partition member in the transport direction. ing. With this configuration, for example, the medium has a medium height between plain paper and cardboard, and the guide member is conveyed while being bent halfway, and the center of the medium is positioned above the protrusion. In addition, when both the left and right end portions of the medium are positioned below the protrusion, the medium is guided while being moved while sliding on the inclined surface of the protrusion. , Can be guided into the first transport path. Therefore, the medium can be reliably guided to the first transport path and the second transport path even if the medium is bent in the width direction.

  The skew correction device includes any of the processing devices described above.

  According to this configuration, since the skew correction device includes the processing device, skew correction can be performed without performing a complicated mechanism or control.

  The recording apparatus includes any of the processing apparatuses described above.

  According to this configuration, since the recording apparatus includes the processing device, the skew correction of the medium can be performed by the processing device having an easy configuration, so that the occurrence of the jam of the medium or the printing is performed at a predetermined position. It is possible to solve problems such as not being present.

  DESCRIPTION OF SYMBOLS 1 ... Printer as recording device, 10 ... Recording head as processing part, 16 ... Conveying roller pair as skew correction roller pair, 30, 30A, 30B, 30C ... Guiding member, 50 ... 1st conveying path, 55, 55A ... Partition member, 56 ... Second transport path, 60 ... Path changing unit, 61 ... Third transport path as a transport path, 62 ... Path changing member, 63 ... Curved part, 64 ... Pressing member, 100, 100A to 100D ... Processing device, 551... Projection, P.

Claims (11)

A processing unit that executes a predetermined process on a medium to be conveyed;
A skew correction roller pair that corrects skew of the medium at the nip position on the upstream side of the processing unit;
A first conveyance path that is formed on the upstream side of the skew correction roller pair and that allows bending when the medium being conveyed is corrected for skew;
A second transport path that is formed in parallel with the first transport path on the upstream side of the pair of skew correction rollers, and that allows greater deflection than the first transport path during the skew correction of the medium being transported;
A guide member provided upstream of the first transport path and the second transport path and guiding the medium to either the first transport path or the second transport path;
The processing device according to claim 1, wherein the guiding member switches the path between the first transport path and the second transport path according to the rigidity of the medium. The processing apparatus according to claim 1,
The guide member is composed of a flexible plate-like member arranged in a posture to guide to the first transport path, and is guided to the second transport path by bending according to the rigidity of the medium. A processing apparatus characterized by having a posture to perform. The processing apparatus according to claim 1 or 2, wherein
The guide member is composed of a plate-like member that is pressed so as to maintain a posture for guiding to the first transport path, and is displaced against the press by the rigidity of the medium, so that the second transport is performed. A processing apparatus characterized in that it is in a posture to be guided to a route. The processing apparatus according to claim 1,
A path changing unit that changes the path of the medium on the upstream side of the guide member in the transport direction;
A transport path for transporting the medium to the opposite side of the skew correction roller;
A path changing member that forms a part of the transport path of the path changing unit and is displaceable according to the rigidity of the medium; and
The processing apparatus according to claim 1, wherein the guide member switches the path between the first transport path and the second transport path in accordance with the displacement of the route changing member. The processing apparatus according to claim 4,
The processing apparatus, wherein the route changing member is displaced to the outside of the conveyance path of the route changing unit by the medium, so that the guide member is guided to the second conveyance path. The processing apparatus according to claim 4,
The processing apparatus according to claim 1, wherein the course changing unit includes a pressing member that presses the course changing member toward the inside of the transport path. The processing apparatus according to claim 6, wherein
The processing apparatus according to claim 1, wherein the path changing member is displaced against the pressing of the pressing member by the rigidity of the medium. The processing apparatus according to any one of claims 4 to 7,
2. The processing apparatus according to claim 1, wherein the course changing unit includes a curved part having a curved shape, and the course changing member is disposed outside the bending part. The processing apparatus according to any one of claims 1 to 8,
A partition member that partitions the first transport path and the second transport path;
The processing apparatus according to claim 1, wherein a protruding portion that is inclined and protrudes upstream is formed at an upstream end of the partition member in the transport direction.   A skew correction device comprising the processing device according to any one of claims 1 to 9.   A recording apparatus comprising the processing apparatus according to claim 1.

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