JP6931183B2 - Recording system - Google Patents

Description

The present invention relates to a recording system including a recording unit that discharges a liquid to a conveyed medium for recording, and a post-processing unit that sends a medium after recording by the recording unit to perform post-processing on the medium. ..

Conventionally, a recording device (image forming device) provided with a recording unit that ejects ink (liquid) onto paper, which is an example of a medium, and records an image, and punching processing, staple processing, etc. on the paper on which an image is recorded. A recording system having a post-processing device for performing post-processing is known.
As such a recording system, Patent Document 1 includes a recording device such as a printer that records an image on paper (printer 100 in Patent Document 1), and a post-processing unit that performs post-processing on the paper on which the image is recorded. Disclosed is a configuration including a post-processing device (post-processing device 300 in Patent Document 1) and a relay unit (transport device 200 in Patent Document 1) that constitutes a transport path between the recording device and the post-processing device. ing.

In the post-processing apparatus, post-processing such as punching processing and staple processing is performed on the paper after recording in the recording apparatus.
Specifically, the recording device continuously records a plurality of sheets of paper, continuously feeds the recorded paper to the post-processing device via the relay unit, and post-processes the post-processing device. A plurality of sheets of paper are stacked on the unit, and the post-processing is performed on the stacked paper bundles.

Japanese Unexamined Patent Publication No. 2016-185867

Here, when a plurality of sheets of paper after recording are continuously fed, the preceding medium to be fed first and the succeeding medium following the preceding medium are fed at intervals so as not to collide with each other.
When a plurality of sheets of paper are stacked on the post-processing unit and the post-processing is performed, for the stacking operation and the post-processing operation, for example, the paper after recording is simply stacked on the output tray as it is. Compared to the case, a relatively wide distance is required between the preceding medium and the succeeding medium.
When the post-processing unit executes post-processing, the paper after recording in the recording device is sent to the post-processing device via the relay unit with a wide space between the preceding medium and the succeeding medium, and the recording system The processing speed (throughput) per unit time in the above is lower than that when the post-processing is not executed, for example.

Therefore, the present invention has been made in view of such a situation, and an object of the present invention is to provide a recording system capable of suppressing a decrease in throughput when performing post-processing in a post-processing device.

In the recording system according to the first aspect of the present invention for solving the above problems, a recording unit that discharges a liquid to a medium for recording and the medium on which recording by the recording unit is executed are subjected to post-processing. A relay transport path for transporting the medium between the post-processing unit to be executed is provided, and the relay transport path includes a preceding medium to be conveyed first and a succeeding medium to be conveyed following the preceding medium. It is configured to be capable of transporting at intervals, and in the relay transport path, the distance between the preceding medium and the succeeding medium is the largest in the transport region on the downstream side in the medium transport direction, before the preceding medium enters the post-processing unit. It is characterized by being wide.

According to this aspect, in the relay transport path, the distance between the preceding medium and the succeeding medium is widest in the transport region on the downstream side in the medium transport direction before the preceding medium enters the post-processing unit, that is, Since the distance between the preceding medium and the succeeding medium is the widest on the side close to the post-processing unit, the preceding medium and the succeeding medium required for post-processing are provided immediately before the post-processing unit. On the upstream side of the relay transport path, the interval can be reduced to suppress a decrease in throughput in the recording system.

A second aspect of the present invention includes, in the first aspect, a correction transport means provided in the relay transport path, which transports the medium after performing a skew correction operation in which the tip of the medium is abutted. The distance between the preceding medium and the succeeding medium is widest on the downstream side in the medium transport direction of the correction transport means.

In the correction transport means, when the skew correction operation in which the tip of the medium is abutted against the preceding medium is executed, the distance between the preceding medium and the succeeding medium is narrowed. Since the distance from the succeeding medium is widest on the downstream side of the correction transport means in the medium transport direction, the distance between the preceding medium and the succeeding medium is secured on the upstream side of the post-processing unit, and the correction is performed. The medium whose posture has been corrected by the transport means can be sent to the post-processing unit.

In a third aspect of the present invention, in the second aspect, the relay transport path is connected to the first transport path provided on the upstream side and the downstream side in the medium transport direction of the first transport path, and the correction transport means. A second transport path including the above, and a third transport path connected to the downstream side in the medium transport direction of the second transport path, and the average medium transport speed in the third transport path is the average medium in the second transport path. It is characterized in that it is faster than the transport speed, and the average medium transport speed in the second transport path is faster than the average medium transport speed in the first transport path.

According to this aspect, since the average medium transport speed in the second transport path provided with the correction transport means is faster than the average medium transport speed in the first transport path, the skew correction by the correction transport means with respect to the preceding medium. When the operation is executed, the distance between the preceding medium and the succeeding medium is narrowed, and the possibility that the succeeding medium collides with the preceding medium can be suppressed.
Further, in the relay transport path, the average medium transport speed in the third transport path located on the downstream side is faster than the average medium transport speed in the second transport path, so that the preceding medium and the succeeding medium are said to have the same speed. It is possible to realize a configuration in which the interval is widest on the downstream side of the relay transport path.

In a fourth aspect of the present invention, in the third aspect, the first transport path is a branch path provided on the upstream side in the medium transport direction and one branch destination of the branch path, and the transport direction of the medium. A first switchback path that executes a switchback operation that reverses the above, a second switchback path that is the other branch destination of the branch path and executes a switchback operation that reverses the transport direction of the medium, and the first switchback path. The first reversal path to which the medium after the switchback operation in one switchback path is sent, the second reversal path to which the medium after the switchback operation in the second switchback path is sent, and the first reversal path. It is characterized in that the second inversion path merges and the merging path connected to the second transport path is provided.

According to this aspect, the first transport path branches on the upstream side in the medium transport direction, includes two paths passing through a switchback path and an inversion path, and includes a merging path in which the two paths merge. , The preceding medium and the succeeding medium can be alternately conveyed by the two routes. As a result, the throughput in the recording system can be improved because the leading medium and the succeeding medium in the first transport path can be transported with a close interval. Further, since the relay transport path can be formed to be long, the medium can be dried for a long time after recording.

A fifth aspect of the present invention comprises a plurality of transport roller pairs for transporting the medium in the second transport path in the third or fourth aspect, and is the most downstream of the plurality of transport roller pairs. When the rear end of the leading medium is located at the position of the downstream transport roller pair located on the side, the distance between the leading medium and the trailing medium is located on the most upstream side of the plurality of transport roller pairs. It is characterized in that it is wider than the distance between the preceding medium and the following medium when the tip of the preceding medium is located at the position of the pair of upstream transport rollers.

According to this aspect, the preceding medium when the preceding medium is carried out from the second transport path is more than the distance between the preceding medium and the succeeding medium when the leading medium is carried into the second transport path. It is possible to realize a configuration in which the distance between the machine and the succeeding medium is widened so that the distance is widest on the downstream side of the relay transport path.

A sixth aspect of the present invention is, in any one of the first to fifth aspects, a recording mechanism unit including the recording unit, a post-processing mechanism unit including the post-processing unit, and the recording mechanism. It is characterized in that it is arranged between the unit and the post-processing mechanism unit, and includes a relay mechanism unit having at least a part of the relay transport path.

According to this aspect, in the recording system including the recording mechanism unit, the post-processing mechanism unit, and the relay mechanism unit, the same effects as those in the first to fifth aspects can be obtained.

The schematic diagram of the recording system which concerns on this invention. A side sectional view of a part of the recording mechanism and the relay mechanism. The schematic diagram which shows the transport path of a recording mechanism part. The schematic diagram which shows the transport path of a relay mechanism part. The schematic diagram which shows the transport path which passes through the 1st switchback path. The schematic diagram which shows the transport path passing through the 2nd switchback path. The figure explaining the transport of a plurality of sheets in a relay transport path. The figure explaining the transport of a plurality of sheets in a relay transport path. The figure explaining the transport of a plurality of sheets in a relay transport path. The figure explaining the transport path at the time of double-sided recording.

[Example 1]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view of a recording system according to the present invention. FIG. 2 is a side sectional view of a part of the recording mechanism unit and the relay mechanism unit. FIG. 3 is a schematic view showing a transport path of the recording mechanism unit. FIG. 4 is a schematic view showing a transport path of the relay mechanism unit. FIG. 5 is a schematic view showing a transport route passing through the first switchback path. FIG. 6 is a schematic view showing a transport path passing through the second switchback path. FIG. 7 is a diagram illustrating the transfer of a plurality of sheets in the relay transfer path. FIG. 8 is a diagram illustrating the transfer of a plurality of sheets in the relay transfer path. FIG. 9 is a diagram illustrating the transfer of a plurality of sheets in the relay transfer path. FIG. 10 is a diagram illustrating a transport path during double-sided recording.

Further, in the XYZ coordinate system shown in each figure, the X-axis direction is the width direction of the recording medium, the device depth direction is shown, and the Y-axis direction is the transport direction of the recording medium in the transport path in the recording device. , The device width direction is shown, and the Z-axis direction is the device height direction.

■■■ Overview of recording system ■■■
The recording system 1 shown in FIG. 1 includes a recording mechanism unit 2 for recording on paper as a “medium”, a relay mechanism unit 3, and a post-processing mechanism unit 4. As an example, the recording system 1 is provided with a recording mechanism unit 2, a relay mechanism unit 3, and a post-processing mechanism unit 4 in this order from the right side to the left side of FIG. In the present embodiment, the recording mechanism unit 2, the relay mechanism unit 3, and the post-processing mechanism unit 4 are connected to each other so that the medium can be conveyed from the recording mechanism unit 2 to the post-processing mechanism unit 4.
In the recording system 1, the transport path for transporting paper between the line head 10 (recording unit) and the post-processing unit 44 is called a relay transport path 30. The relay transport path 30 will be described in detail later.
In addition to the case where the recording system 1 is configured by connecting the individual recording mechanism unit 2, the relay mechanism unit 3, and the post-processing mechanism unit 4, for example, the recording mechanism unit 2 and the relay are relayed in one housing. The mechanism unit 3 and the post-processing mechanism unit 4 may all be provided integrally.

The recording system 1 can input recording operations on a medium in the recording mechanism unit 2, the relay mechanism unit 3, and the post-processing mechanism unit 4 from an operation panel (not shown) provided in the recording mechanism unit 2. It is configured.
Hereinafter, a schematic configuration of each of the recording mechanism unit 2, the relay mechanism unit 3, and the post-processing mechanism unit 4 will be described in this order.

<<< Recording mechanism >>
The recording mechanism unit 2 shown in FIG. 1 includes a printer unit 5 including a line head 10 (FIG. 3) as a “recording unit” that ejects ink as an example of a “liquid” onto paper to perform recording, and a scanner unit 6. It is configured as a multifunction device equipped with. In the present embodiment, the ink is a water-based ink such as a water-based ink, and the printer unit 5 is a so-called inkjet printer.
The recording mechanism unit 2 is configured to enable double-sided recording in which the paper is inverted and recorded on the second surface (also referred to as the back surface) after recording on the first surface (also referred to as the front surface) of the paper. There is.

A plurality of paper storage cassettes 7 are provided in the lower part of the device of the recording mechanism unit 2 (FIG. 1). The paper stored in the paper storage cassette 7 is sent toward the line head 10 to perform a recording operation. The paper after recording by the line head 10 is configured to be ejected to either the first ejection unit 8 provided in the recording mechanism unit 2 or the second ejection unit 40 provided in the post-processing mechanism unit 4. There is. The medium is discharged to the second discharge unit 40 after the post-treatment unit 44 of the post-treatment mechanism unit 4 has performed post-treatment such as cutting or stapling.
When the paper after recording is ejected from the second ejection unit 40, the paper after recording is sent from the delivery unit 28 to the relay mechanism unit 3, and the post-processing mechanism including the post-processing unit 44 is provided via the relay mechanism unit 3. It is sent to part 4.
The paper transport path in the printer unit 5 of the recording mechanism unit 2 will be described in detail later.

<<< Relay mechanism >>
The relay mechanism unit 3 (FIG. 1) is arranged between the recording mechanism unit 2 and the post-processing mechanism unit 4, and is configured to convey the paper delivered from the delivery unit 28 to the post-processing mechanism unit 4. ..
The paper transport path in the relay mechanism unit 3 includes a first transport path 81 and a second transport path 82 connected to the first transport path 81. The first transport path 81 and the second transport path 82 are responsible for at least a part of the relay transport path 30, which will be described later.
In addition, the relay mechanism unit 3 dries the paper by transporting the paper for a predetermined period or longer. As a result, the paper transport time can be increased.
The paper conveyed inside the relay mechanism unit 3 is sent from the carry-out unit 35 provided in the relay mechanism unit 3 to the post-processing mechanism unit 4 via the receiving unit 41 of the post-processing mechanism unit 4.
The first transfer path 81 and the second transfer path 82 constituting the relay transfer path 30 will be described in detail later together with the paper transfer path in the printer unit 5.

<<< Post-processing mechanism >>
Further, the post-processing mechanism unit 4 (FIG. 1) is configured to include a post-processing unit 44 that performs post-processing on the paper recorded by the recording mechanism unit 2. Examples of the post-processing performed by the post-processing unit 44 include cutting, folding paper, punching holes, staples, and sorting.
The third transport path 86, which is a paper transport path in the post-processing mechanism unit 4, is connected to the second transport path 82 and serves as a part of the relay transport path 30, which will be described later.
Hereinafter, the paper transport route in the recording mechanism unit 2, the paper transport route in the relay mechanism unit 3, and the post-processing mechanism unit 4 will be sequentially described.

■■■ About the medium transport route of the recording unit ■■■
Next, the paper transport path in the recording mechanism 2 will be described with reference to FIG.
In FIG. 3, the dotted line indicated by reference numeral T indicates a part of the paper transport path from the paper storage cassette 7. The paper transport path T includes a feed path 14 for feeding the paper picked up from the paper storage cassette 7, and a straight path 12 connected to the feed path 14 and including a recording area by the line head 10. There is.

Further, on the downstream side of the straight path 12, there is an ejection path 13 (indicated by a two-dot chain line in FIG. 3) for sending the paper to the first ejection section 8 and a delivery section 28 for delivering the paper to the relay mechanism section 3. A delivery route 31 (indicated by a alternate long and short dash line in FIG. 3) is provided.

At the connection between the straight path 12, the discharge path 13, and the delivery path 31, a switching section 26 such as a guide flap for switching the paper transport destination after recording between the delivery section 28 and the first discharge section 8 is provided. Has been done. The operation of the switching unit 26 is controlled by the control unit 27. The control unit 27 controls not only the paper transport operation in the recording system 1 but also the operation related to recording such as the operation of the switching unit 26.
In the following, the transfer of the paper from the paper storage cassette 7 to the first ejection unit 8 will be described first, and then the paper after recording is sent to the second ejection unit 40 via the relay mechanism unit 3 (relay transfer). The transport of (when passing through the route 30) will be described.

<<< About the paper transport route to the first ejection section >>>
As shown in FIG. 3, the feed path 14 is provided with a feed roller 17 in order along the medium transport direction, and a separation roller pair 18 for separating a plurality of sheets into one sheet.
The feeding roller 17 is configured to be rotationally driven by a drive source (not shown). Further, the separation roller pair 18 is also called a retard roller, and includes a drive roller 18a for feeding the paper toward the straight path 12 described later, and a driven roller 18b for niping and separating the paper between the drive roller 18a. It is composed of.

A plurality of sheets of paper can be stored in the paper storage cassette 7, and the highest-level paper is picked up by the feeding roller 17 and transported to the downstream side in the transport direction. At this time, the next-ranked paper and the next-ranked paper may be conveyed together with the top-ranked paper, but the top-ranked paper and the next-ranked paper are separated by the separation roller pair 18, and only the top-ranked paper is fed. It is sent to the route 14.

A resist roller pair 19 provided on the upstream side of the belt transport means 20, which will be described later, is provided on the downstream side of the separation roller pair 18 in the transport direction.
In this embodiment, the feeding path 14 and the straight path 12 are connected at the position of the resist roller vs. 19.
The straight path 12 is configured as a path extending substantially linearly, and a belt conveying means 20, a static elimination unit 25, and a line head 10 are provided on the downstream side of the resist roller pair 19.
In the present embodiment, the belt transport means 20 is arranged in a region facing the head surface of the line head 10 and supports the side opposite to the recording surface of the paper.

The line head 10 is configured to inject ink as a "liquid" onto the recording surface of the paper to execute recording when the paper is conveyed to a position facing the line head 10 on the belt conveying means 20. There is. The line head 10 is a recording head provided so that a nozzle for ejecting ink covers the entire width of the paper, and is configured as a recording head capable of recording over the entire width of the medium without moving in the width direction of the medium. ing.
Although the recording mechanism unit 2 of this embodiment includes a line head 10, it is mounted on a carriage and reciprocates in a direction intersecting the medium transport direction while ejecting a liquid onto the medium for recording. It may be provided with a head.

The paper conveyed on the straight path 12 is subsequently sent to the discharge path 13. The discharge path 13 is a curved transport path connected to the straight path 12 on the downstream side of the line head 10, and is from the first discharge section 8 with the recording surface of the paper recorded by the line head 10 facing down. It is a route to send so that it is discharged.
The paper that has entered the discharge path 13 is conveyed by the transfer roller pairs 21, 22 and the transfer roller pair group 23, is discharged from the first discharge section 8, and is placed on the medium mounting section 9 with the recording surface facing down. It will be placed.

<<< About the transport route to the second discharge section >>>
The paper after recording is conveyed to the second discharge section 40 through the relay transfer path 30 (FIG. 1). As described above, the relay transport path 30 is a transport path for transporting paper between the line head 10 (recording unit) and the post-processing unit 44. In the present embodiment, the first transfer path 81 and the second transfer path 82 (see also FIGS. 2 and 4), which are the transfer paths in the relay mechanism unit 3, and the third transfer, which is the transfer path in the post-processing mechanism unit 4. The route 86 is collectively referred to as a relay transport route 30.
The relay transfer path 30 may include a transfer path from immediately after the line head 10 (downstream) to immediately before (upstream) the first transfer path 81.

More specifically, the relay transport path 30 (FIG. 1) is connected to the first transport path 81 provided on the upstream side and the downstream side of the first transport path 81 in the medium transport direction, and is a correction roller pair 62 (FIG. 1) described later. A second transport path 82 including (see also 4) and a third transport path 86 connected to the downstream side of the second transport path 82 in the medium transport direction are provided.

The feature of the present invention is a configuration related to the transfer of a plurality of sheets in the relay transfer path 30. This point will be described in detail below after each of the first transport path 81, the second transport path 82, and the third transport path 86 constituting the relay transport path 30 has been described.

◆ About the first transport route and the second transport route ◆
As described above, the first transport path 81 and the second transport path 82 are transport paths in the relay mechanism unit 3.
The first transport path 81 is a path for transporting the paper delivered from the recording mechanism unit 2, and in the present embodiment, the path on the upstream side of the fifth transport roller pair group 61 (FIG. 4) described later. Say. Further, the second transport path 82 is a path that is connected to the downstream side of the first transport path 81 and transports the paper toward the post-processing unit 44 of the post-processing mechanism unit 4.

The paper on which the recording is performed in the recording mechanism unit 2 is sent from the delivery unit 28 of the recording mechanism unit 2 to the relay mechanism unit 3 (see FIGS. 2 and 3). Specifically, the paper after recording is sent to the delivery path 31, passes through the delivery section 28, and enters the first transport path 81 from the carry-in section 34 of the relay mechanism section 3.

Hereinafter, the first transport path 81 and the second transport path 82 will be described in more detail with reference to FIG. In each transport roller pair shown in FIG. 4, the drive roller driven by a drive source such as a motor is shown in a large circle, and the driven roller that rotates in a driven manner is shown in a small circle. The drive of the moving rollers of each transfer roller pair is controlled by the control unit 27 (FIGS. 1 and 3) to transfer the paper.

The first transport path 81 (FIG. 4) includes a branch point A, a branch point B, and a branch point C at which the transport path branches, a confluence D at which the transport paths merge, and an end portion forming the end of the paper transport path. It has an E and an end F. Further, at the branch point A, the branch point B, and the branch point C, a guide flap (not shown) for distributing the paper transport path is provided.

On the upstream side of the first transport route 81, an introduction route 50 and a first branch route 51 and a second branch route 54 as "branch routes" for branching the route from the introduction route 50 are provided. The first branch path 51 and the second branch path 54 branch so as to send the paper introduced from the recording mechanism unit 2 to either the first switchback path 52 or the second switchback path 55. There is.
The first switchback path 52 and the second switchback path 55 are paths for executing a switchback operation that reverses the paper transport direction.
The first switchback path 52 is one of the branch destinations of the "branch path" and is connected to the first branch path 51. The second switchback path 55 is the other branch destination of the "branch path" and is connected to the second branch path 54.

The first reversing path 53 is a path for reversing the paper after the switchback operation in the first switchback path 52. The second reversing path 56 is a path for reversing the paper after the switchback operation in the second switchback path 55. The merging path 64 is a path where the first reversing path 53 and the second reversing path 56 merge. The merging path 64 is connected to the second transport path 82 at the position S shown in FIG.

In the present embodiment, the introduction path 50, the first branch path 51, the first switchback path 52, the first reversal path 53, the second branch path 54, the second switchback path 55, the second reversal path 56, and the merging path. The route including 64 is the first transport route 81, and the route downstream of the merging route 64 is the second transport route 82.

A first transport roller pair group 57 is provided in the introduction path 50, the first branch path 51, and the second branch path 54. The first switchback path 52 is provided with a second transport roller pair group 58. The second switchback path 55 is provided with a third transport roller pair group 59. A fourth transport roller pair group 60 is provided in the first reversing path 53, the second reversing path 56, and the merging path 64. In the present embodiment, the first transport roller pair group 57, the second transport roller pair group 58, the third transport roller pair group 59, and the fourth transport roller pair group 60 provided in the first transport path 81 are It is referred to as upstream transport means 84 (FIG. 4).

The second transport path 82 is provided with a fifth transport roller pair group 61, a correction roller pair 62, and a discharge roller pair 63 as a plurality of transport roller pairs for transporting paper. The fifth transport roller pair group 61, correction roller pair 62, and discharge roller pair 63 provided in the second transport path 82 are referred to as downstream transport means 85 (FIG. 4).

Further, the correction roller pair 62 is an example of a "correction transport means" for transporting the paper after executing the "skew correction operation" in which the tip of the paper is abutted.
The correction roller pair 62 performs a “skew correction operation” for correcting the skew (skew) of the paper with respect to the transport direction in the second transport path 82 (that is, the relay transport path 30). The "skew correction operation" is executed by the control unit 27 decelerating the paper transport speed when the tip of the paper reaches the correction roller pair 62. In the present embodiment, by applying the paper to the correction roller pair 62 in the stopped state, the tip positions of the paper with respect to the transport direction are aligned, and the skew is corrected.

The paper whose skew has been corrected by the “skew correction operation” is nipped by the correction roller pair 62 and sent out toward the carry-out unit 35.
The correction roller pair 62 is located on the downstream side in the transport direction with respect to the fifth transport roller pair group 61, and is arranged so that the tip of the paper reaches the carry-out portion 35 during transport by the correction roller pair 62. There is. That is, the correction roller pair 62 is arranged near the carry-out portion 35.

The second transfer roller pair group 58 and the third transfer roller pair group 59 can rotate in the forward rotation direction or the reverse rotation direction, and the paper transfer direction in the first switchback path 52 and the second switchback path 55. Can be inverted.

Further, the fifth transport roller pair group 61, the correction roller pair 62, and the discharge roller pair 63 provided in the second transport path 82 shown in FIG. 4 are rotationally driven by a common drive source 83 (FIG. 2). The fifth transport roller pair group 61 is configured to be able to turn on / off the power transmission of the drive source 83 so that the power transmission of the drive source 83 is turned off when the “skew correction operation” is executed. It is configured in. As a result, the fifth transport roller pair group 61 is decelerated during the "skew correction operation". The power transmission of the drive source 83 can be turned on / off by using, for example, an electromagnetic clutch (not shown).
Similar to the fifth transport roller pair group 61, the correction roller pair 62 and the discharge roller pair 63 are also configured so that the power transmission of the drive source 83 can be switched on / off by an electromagnetic clutch (not shown). In addition, the correction roller pair 62 includes an electromagnetic clutch (not shown) for applying a brake when the rotation is stopped in association with the execution of the “skew correction operation”.

Subsequently, the flow of paper transport in the first transport path 81 and the second transport path 82 will be described with reference to FIGS. 5 and 6. 5 and 6 are views corresponding to FIG. 4, and are of transport systems such as the first transport roller pair group 57 to the fifth transport roller pair group 61, the correction roller pair 62, and the discharge roller pair 63. The illustration of components that are not necessary for the explanation is omitted. Further, in FIGS. 5 and 6, the transport route used for transporting the paper is shown by a solid line, and the transport route not used for transporting the paper is shown by a broken line. Further, in FIGS. 5 and 6, the arrows in the drawings indicate the paper transport directions, and are designated by H1 to H6, respectively.

As the route (procedure) for entering the second transport route 82 via the first transport route 81, the route 32a shown in FIG. 5 (the route shown by the solid line in FIG. 5) and the route 32b shown in FIG. 6 (in FIG. 6). Paper can be transported in two ways (the route shown by the solid line).
As shown by the solid line in FIG. 5, the path 32a through which the paper is conveyed includes an introduction path 50, a first branch path 51, a first switchback path 52, a first reversal path 53, and a confluence path 64. It is composed of a second transport path 82.

When the paper travels along the route 32a (FIG. 5), the paper sent from the carry-in unit 34 passes through the introduction path 50, travels along the first branch path 51 in the transport direction H1, and enters the first switchback path 52. come in. The paper carried into the first switchback path 52 travels in the transport direction H2, then the paper travel direction is reversed (switched back), and the paper travels in the transport direction H3 opposite to the transport direction H2. Enter the first reversal path 53. Subsequently, the paper advances in the transport direction H4 in the first reversal path 53 and enters the merging path 64, further enters the second transport path 82 from the merging path 64, and enters the receiving section 41 of the post-processing mechanism section 4 from the unloading section 35. It is carried out toward (FIG. 1) (see transport direction H5 and transport direction H6).

On the other hand, the route 32b shown by the solid line in FIG. 6 includes the introduction route 50, the second branch route 54, the second switchback route 55, the second inversion route 56, the merging route 64, and the second transport route 82. Consists of ,.
When the paper travels along the route 32b, the paper carried in from the carry-in section 34 passes through the introduction path 50, proceeds in the second branch path 54 in the transport direction H1, and is carried into the second switchback path 55. The paper carried into the second switchback path 55 travels in the transport direction H2, then the paper travel direction is reversed (switched back), travels in the transport direction H3 opposite to the transport direction H2, and then travels in the second transport direction H3. It is carried into the reversal path 56. Subsequently, the paper advances in the transport direction H4 in the second reversal path 56, is carried into the merging path 64, further enters the second transport path 82 from the merging path 64, and is further entered from the unloading section 35 into the receiving section of the post-processing mechanism section 4. It is carried out toward 41 (FIG. 1) (see transport direction H5 and transport direction H6).

When recording on a plurality of sheets of paper in succession, the paper carried in from the carry-in unit 34 is, for example, the preceding medium on which the recording was performed earlier, and the route 32a is provided by a guide flap (not shown) provided at the branch point A. Will be guided to. Subsequently, the succeeding medium carried in from the carry-in unit 34 is guided to the route 32b by a guide flap (not shown) provided at the branch point A.
Then, the transport of the paper by the route 32a and the transport of the paper by the route 32b are alternately repeated.

In the discharge path 13 described above (the path for discharging the recorded paper from the first discharge unit 8 of the recording mechanism unit 2), the control unit 27 performs a switchback operation in which the paper transport direction is reversed in the discharge path 13. Instead, the paper is ejected in the same transport direction.
On the other hand, when the paper is discharged from the second discharge unit 40 through the relay mechanism unit 3, the switchback operation is performed in the first switchback path 52 or the second switchback path 55, so that the transport time is longer. Therefore, the drying time of the paper can be made longer, and the post-treatment by the post-treatment mechanism unit 4 can be appropriately performed.

Further, since the first transport path 81 includes two switchback paths (first switchback path 52 and second switchback path 55), two transport paths (two transport paths (1st switchback path 52, second switchback path 55) are reached before reaching the second transport path 82. It is possible to configure the structure so that it can pass through either the route 32a or the route 32b), and it is possible to increase the paper transport capacity as compared with the case where one transport path is provided.
Further, as described above, when recording is continuously performed on a plurality of sheets of paper, different transport routes can be used for the preceding medium and the succeeding medium. Therefore, the distance between the preceding medium and the succeeding medium can be shortened, and the drying time can be secured while suppressing the decrease in throughput.

In the recording mechanism unit 2, when ink (water-based ink in this embodiment) is ejected from the line head 10 onto the paper, the water in the ink permeates the paper and is absorbed. The relay mechanism unit 3 evaporates the moisture absorbed in the paper and dries it while the paper is being conveyed. Since the first transport path 81 includes the first switchback path 52 and the second switchback path 55, the transport distance is long, and when the transport distance is short, for example, the discharge path 13 of the recording mechanism unit 2 is transported. The ink adhering to the paper can be dried more appropriately than in the case of the above.

In the first switchback path 52 or the second switchback path 55, the position of the paper surface (for example, the first surface) with respect to the transport direction is reversed before and after the paper traveling direction is switched back.
Therefore, the front and back sides (positions of the first surface and the second surface) of the paper carried in from the carry-in unit 34 with respect to the transport direction are reversed while being conveyed through the first transport path 81. Then, the paper is carried out from the carry-out unit 35 toward the post-processing mechanism unit 4 (FIG. 1) with the front and back sides reversed with respect to the transport direction.

◆ About the third transport route ◆
The paper carried out from the carry-out section 35 is carried in from the receiving section 41 of the post-processing mechanism section 4 shown in FIG. 1 to the third transport path 86. The third transport path 86 is a path for transporting the paper derived from the second transport path 82.
The post-processing mechanism unit 4 is provided on the downstream side of the sixth transport roller pair group 42 and the sixth transport roller pair group 42, which are the transport means in the third transport path 86, and temporarily uses the paper before post-treatment. A post-processing unit 44 that stacks in the paper and a second discharging unit 40 that ejects the post-processed paper are provided.

The paper that has entered the third transport path 86 is fed by the sixth transport roller pair group 42, and the paper tip side once reaches the second discharge section 40. An impeller portion 45 is provided near the upstream side of the second discharge portion 40, and when the rear end side of the paper hits the rotating impeller portion 45, the paper is dropped diagonally downward on the −Y axis direction side and temporarily. It is stacked in the post-processing unit 44.
When the number of sheets (which may be one) set for the post-processing is stacked in the post-processing unit 44, the post-processing (cutting, staple processing, etc.) is executed. The paper or the bundle of paper after the post-processing is executed is discharged in the + Y-axis direction by the discharge roller 46 and placed on the discharge stacker 47.
In the present embodiment, the drive of each roller, impeller 45, etc. in the third transport path 86 is also controlled by the control unit 27 (FIGS. 1 and 3).
The above is a series of flow of paper transport in the recording system 1.

■■■ About the transfer of multiple sheets in the relay transfer path ■■■
When continuous recording is executed in the recording mechanism unit 2, the paper after recording is continuously fed to the relay transport path 30, and the preceding medium conveyed first and the succeeding medium conveyed following the preceding medium are transferred. , It is transported in the relay transport path 30 at intervals.
With reference to FIGS. 7 and 8, the transfer of a plurality of sheets (reference numerals P1, P2, P3 ...) Will be described.

The right figure of FIG. 7 shows a state in which the first sheet of paper P1 is being conveyed toward the first switchback path 52. In each of the drawings of FIGS. 7 and 8, an arrow is shown on the tip side of the paper (reference numerals P1, P2, P3 ...) In the transport direction.
As shown in the middle diagram of FIG. 7, while the switchback operation of the first sheet P1 (preceding medium) is performed in the first switchback path 52, the sheet P2 as the succeeding medium enters the second switchback path 55. It is transported toward.
Further, as shown in the left figure of FIG. 7, the paper P1 is conveyed along the merging path 64. While the paper P2 is switched back in the second switchback path 55, the paper P3 is conveyed toward the first switchback path 52.

Subsequently, the right figure of FIG. 8 shows a state in which the tip of the paper P1 as the preceding medium is conveyed to the position of the upstream transfer roller pair 61a located on the most upstream side of the fifth transfer roller pair group 61. Is shown. The upstream-side transport roller pair 61a is also a plurality of transport roller pairs provided in the second transport path 82, that is, a transport roller pair located on the most upstream side of the downstream-side transport means 85. At this time, the distance between the rear end of the paper P1 and the front end of the paper P2 is defined as the gap L1.

By the way, in the relay transport path 30, for example, in order to perform a switchback operation using the first switchback path 52 and the second switchback path 55, and a "skew correction operation" in which paper is abutted against the correction roller pair 62. , The distance between the preceding medium and the succeeding medium changes.
In particular, when the tip of the paper P1 abuts against the correction roller pair 62 and executes the "skew correction operation" (middle figure of FIG. 8), the speed of the preceding medium is temporarily stopped or decelerated, and the following medium is conveyed during that time. Therefore, the distance between the preceding medium and the succeeding medium is narrowed. Specifically, assuming that the distance traveled by the paper P2 to the paper P4 is L2 while the "skew correction operation" is being executed for the paper P1, the rear end of the paper P1 and the following paper P2 The distance from the tip is reduced by the distance L2 (middle figure in FIG. 8).
Therefore, the interval L1 needs to be an interval at which the preceding medium (for example, paper P1) and the succeeding medium (for example, paper P2) do not collide with each other at least when the “skew correction operation” is executed.

Here, when a plurality of sheets of paper are stacked on the post-processing unit 44 of the post-processing mechanism unit 4, as described above, the paper has the tip side once reaching the second ejection unit 40, and then the paper has an impeller portion. It comes into contact with 45, is dropped and stacked so as to return slightly in the direction opposite to the medium transport direction (-Y-axis direction) by its own weight. Post-processing such as staples is executed on the paper stacked in the post-processing unit 44. When performing such a stacking operation and a post-processing operation, a relatively wide interval (for example, L3) is provided between the preceding medium and the succeeding medium as compared with the case where the papers are simply stacked on the tray. is necessary.

For example, if the paper after the execution of the "skew correction operation" is stacked on the ejection stacker 47 as it is, the maximum value of the distance between the preceding medium and the succeeding medium in the relay transport path 30 is the execution of the "skew correction operation". The interval L1 may be set in consideration of the risk of collision at the time.
However, in the present embodiment, since the stacking operation and the post-processing operation are performed in the post-processing unit 44, a wider interval L3 is required in the transport region before the preceding medium enters the post-processing unit 44. If the distance between the preceding medium and the succeeding medium is set to L3 (including the distance close to L3) through the entire transport area of the relay transport path 30, collision avoidance at the time of executing the "skew correction operation" can be avoided by the post-processing unit. Appropriate stacking operation and post-processing operation in 44 can also be realized. However, the processing speed (throughput) per unit time in the recording system is lower than, for example, when the post-processing is not executed.

Therefore, in the present embodiment, the control unit 27 widens the distance between the preceding medium and the succeeding medium in the transport region on the downstream side of the relay transport path 30 in the medium transport direction before the preceding medium enters the post-processing unit 44. It is configured to do.
That is, when the paper P1 as the preceding medium is conveyed to the front of the post-processing unit 44 as shown in the right figure of FIG. 9, the space between the preceding medium and the succeeding medium is widened, and the paper is sent to the post-processing unit 44. The preceding medium and the succeeding medium are arranged on the upstream side of the relay transport path 30 (for example, the first transport path 81 and the second transport path 82) with an interval (for example, L3) required when the post-processing is performed. The space between the two is narrower than that of L3 (for example, L1) and transported. As a result, it is possible to secure the space required when the paper enters the post-processing unit 44 and suppress the decrease in the throughput in the recording system 1.
The distance between the preceding medium and the succeeding medium can be increased by making the transport speed of the preceding medium faster than that of the succeeding medium. The transport speed (average transport speed) of the medium in the relay transport path 30 will be described in detail later.

In the present embodiment, among the plurality of transport roller pairs (fifth transport roller pair group 61, correction roller pair 62, and discharge roller pair 63) provided in the second transport path 82, the most downstream side is ". When the rear end of the preceding medium (paper P1) is located at the position of the discharge roller pair 63 as the "downstream transport roller pair", the distance between the preceding medium (paper P1) and the succeeding medium (paper P2) is L3 (FIG. 9), and the interval L3 is the upstream transport located on the most upstream side of the plurality of transport roller pairs (fifth transport roller pair group 61, correction roller pair 62, and discharge roller pair 63). When the tip of the preceding medium (paper P1) is positioned at the position of the roller pair 61a, the distance between the preceding medium (paper P1) and the succeeding medium (paper P2) is wider than L1 (right figure in FIG. 8). It is configured.

The distance L3 between the preceding medium and the succeeding medium when the preceding medium is carried out from the second transport path 82 is set rather than the distance L1 between the preceding medium and the succeeding medium immediately before the preceding medium is carried into the second transport path 82. With a wide configuration, it is possible to realize a configuration in which the distance between the preceding medium and the succeeding medium is the widest on the downstream side of the relay transport path 30, that is, in the transport region before the preceding medium enters the post-processing unit 44.

As shown in the right figure of FIG. 9, when the rear end of the preceding medium (paper P1) is conveyed to the position of the discharge roller pair 63, the distance from the succeeding medium (paper P2) is L3 (execution of post-processing). As shown in the left figure of FIG. 9, the distance from the succeeding medium (paper P2) is maintained at L3 or more, and the preceding medium (paper P1) is sent to the post-processing unit 44. In the state shown on the left of FIG. 9, the distance from the subsequent medium (paper P2) may be wider than that of L3.
The distance between the preceding medium and the following medium is preferably configured to be widest on the downstream side of the correction roller pair 62 in the medium transport direction.
That is, it is preferable that the "transport area before the preceding medium enters the post-processing unit 44" in the relay transfer path 30 is a region on the downstream side of the correction roller pair 62 in the relay transfer path 30.

When the "skew correction operation" in which the tip of the medium is abutted against the preceding medium (paper P1) is executed in the correction roller pair 62 as shown in the left figure of FIG. Although the distance between the succeeding medium (paper P2) is narrowed, the distance between the preceding medium and the succeeding medium is widened on the downstream side of the correction roller pair 62 in the medium transport direction, so that the leading medium and the succeeding medium may collide with each other. It can be avoided.
Therefore, an appropriate distance L3 between the preceding medium and the succeeding medium can be secured on the upstream side of the post-processing unit 44, and the paper whose posture has been corrected by the correction roller pair 62 can be sent to the post-processing unit 44.

The "transport area before the preceding medium enters the post-processing unit 44" in the relay transfer path 30 depends on the arrangement of various transfer roller pairs in the relay transfer path 30 and the device configuration such as the paper size used in the recording system 1. It can change.
For example, in the recording system 1 of the present embodiment, at least in the transport region on the downstream side of the discharge roller pair 63, if the distance between the preceding medium (paper P1) and the succeeding medium (paper P2) satisfies L3 or more. Good (left figure in FIG. 9).
Further, in the present embodiment, when the trailing end of the leading medium is conveyed to the position of the discharging roller pair 63 on the upstream side of the discharging roller pair 63, that is, as shown in the right figure of FIG. 9, the leading medium and the succeeding medium are conveyed. The distance between the two and the above satisfies L3 or more, and the distance is maintained at L3 or more in the subsequent (downstream side) transport path.

■■■ About the average transfer speed in the relay transfer path ■■■
As described above, the distance between the preceding medium and the succeeding medium changes in the relay transport path 30 (first transport path 81, second transport path 82, and third transport path 86). In other words, the medium transport speed in the relay transport path 30 changes.
The medium transfer speed in the relay transfer path 30 means the "average medium transfer rate" in the relay transfer path 30 (each transfer path of the first transfer path 81, the second transfer path 82, and the third transfer path 86). do.
More specifically, in the present embodiment, the range of the first transport path 81 when defining the average medium transport speed is the path from the end portion E or the end portion F, which will be described later, to the position S in FIG. Similarly, the range of the second transport path 82 when defining the average medium transport speed is defined as the path from the position S in FIG. 4 to the discharge roller pair 63. The range of the third transport path 86 when defining the average medium transport speed is defined as the path from the transport roller pair 42a on the upstream side to the discharge roller 46 of the sixth transport roller pair group 42.

Since the switchback operation is performed in the first transport path 81 and the skew correction operation is performed in the second transport path 82, the average medium transport speed in the first transport path 81 or the second transport path 82 is not necessarily the same. The transport speed of the upstream transport means 84 or the downstream transport means 85 at a certain timing may not match. The "average medium transport speed" means an average medium transport speed in the specific transport path range by eliminating such temporary fluctuations in the transport speed.

In the present embodiment, the average medium transfer speed of the relay transfer path 30 in the second transfer path 82 is faster than the average medium transfer speed in the first transfer path 81. Further, the average medium transport speed in the third transport path 86 is faster than the average medium transport speed in the second transport path 82.

In the second transport path 82, the “skew correction operation” by the correction roller pair 62 is executed. When the "skew correction operation" is executed on the preceding medium, the distance between the preceding medium and the succeeding medium is narrowed, and the succeeding medium may collide with the preceding medium.
If the average medium transfer speed in the second transfer path 82 is faster than the average medium transfer speed in the first transfer path 81, the distance between the preceding medium and the succeeding medium when the "skew correction operation" for the preceding medium is executed. Even if the jamming is performed, the average transport speed of the preceding medium transported after the completion of the "skew correction operation" is faster than the average transport speed of the succeeding medium, so that the jammed interval can be widened. Therefore, it is possible to suppress the risk of collision of the medium due to the execution of the "skew correction operation".

The third transport path 86 is a transport path that is located on the downstream side of the relay transport path 30 and serves as a “transport region before the preceding medium enters the post-processing unit 44”. If the average medium transport speed in the third transport path 86 is faster than the average medium transport speed in the second transport path 82, the preceding medium previously carried into the third transport path 86 is fed at a high transport speed. Therefore, among the relay transport paths 30, it is possible to realize a configuration in which the distance between the preceding medium and the succeeding medium is the widest in the transport region before the preceding medium enters the post-processing unit 44.

The average medium transport speed in the first transport path 81, the second transport path 82, and the third transport path 86 is determined by the transport speed of the transport means provided in each route.
Upstream transport means 84 provided in the first transport path 81 (first transport roller pair group 57, second transport roller pair group 58, third transport roller pair group 59, and fourth transport shown in FIG. 4). The roller pair group 60) is configured to rotate at a constant velocity.
Further, the downstream transport means 85 (the fifth transport roller pair group 61, the correction roller pair 62, and the discharge roller pair 63 shown in the fourth) provided in the second transport path 82 is configured to rotate at a constant speed. Has been done.
Further, the sixth transport roller pair group 42, which is a transport means provided in the third transport path 86, is configured such that the transport roller pair 42a and the transport roller pair 42b rotate at a constant speed.
In addition, in this specification, "constant velocity" means that it may be substantially constant velocity, and in a strict sense, it does not need to be completely constant velocity. For example, "constant velocity" includes not only the case where they are completely the same, but also the case where they can be regarded as constant velocity when the transfer error due to the roller diameter of each transfer roller and the eccentricity of the rotating shaft is taken into consideration. It shall be an error.

Since the average medium transfer speed of the paper in the relay transfer path 30 is set to the first transfer path 81 <second transfer path 82 <third transfer path 86, the transfer speed by the transfer means provided in the relay transfer path 30 (convey roller pair). The rotation speed of the drive roller) is set so that the upstream transport means 84 <downstream transport means 85 <sixth transport roller pair group 42.

The fourth transport roller pair group 60 constituting the upstream transport means 84 is provided with an electromagnetic clutch (not shown) capable of switching on / off of power transmission of the drive source. When the paper to be conveyed is conveyed across the first transfer path 81 and the second transfer path 82, that is, the tip side of one sheet is the fifth transfer roller pair group 61 as the downstream transfer means 85. When the rear end side is transported by the fourth transport roller pair group 60 (relatively slower than the fifth transport roller pair group 61) as the upstream transport means 84, the fourth transport is performed. The electromagnetic clutch of the roller-to-group 60 is turned off, and the fourth transfer roller-to-group 60 is configured to take the relatively fast fifth transfer roller-to-group 61.

Further, as described above, it is possible to switch on / off the power transmission of the drive source to the discharge roller pair 63, the correction roller pair 62, and the fifth transport roller pair group 61 that constitute the downstream side transport means 85. An electromagnetic clutch (not shown) is provided.
When the paper to be conveyed is conveyed across the second transfer path 82 and the third transfer path 86, that is, the front end side of one sheet of paper is conveyed by the sixth transfer roller pair group 42, and the rear end side is downstream. When transported by the side transport means 85, the electromagnetic clutches of the discharge roller pair 63, the correction roller pair 62, and the sixth transport roller pair group 42 are turned off, and these roller pairs are relatively fast in the sixth transport. It is configured to take the roller vs. the group 42.
The electromagnetic clutches described above in this embodiment are all controlled by the control unit 27 (FIG. 1).

■■■ Other configurations in the recording mechanism ■■■
<<< Transport route for double-sided recording >>>
As described above, the recording mechanism unit 2 is configured to be capable of performing double-sided recording, and is on the downstream side of the line head 10 and on the upstream side of the discharge path 13 (in this embodiment, the transport roller pair in FIG. 3). On the upstream side of 21), the double-sided recording switchback path 15 branching from the straight path 12 and the double-sided recording switchback path 15 are connected, and the front and back sides (first side and second side) of the paper are inverted to form a straight path. A reversal path 16 for returning to 12 is provided. Guide flaps 36 and 37 (FIG. 3) are provided at the connection between the straight path 12 and the switchback path 15 for double-sided recording, and at the connection between the switchback path 15 for double-sided recording and the reverse path 16, respectively. , The route through which the paper is sent can be switched by these switching. The operation of the guide flaps 36 and 37 is also controlled by the control unit 27. Further, the control unit 27 also controls the transfer timing performed by driving the belt transfer means 20 and various transfer roller pairs.

When performing double-sided recording by the line head 10, the control unit 27 waits for a predetermined waiting time and then reverses the paper on which the recording has been performed on the first surface, and records on the second surface.
Specifically, recording is performed on the first surface (top view of FIG. 10), and the paper after recording (indicated by reference numeral P in FIG. 10) is sent from the straight path 12 to the double-sided recording switchback path 15. (The second figure from the top of FIG. 10).
In the double-sided recording switchback path 15, the paper P is made to wait for a predetermined standby time in order to dry the recording on the first surface.

The paper P (second from the top in FIG. 10) that has waited for a predetermined standby time in the double-sided recording switchback path 15 was sent to the double-sided recording switchback path 15 by the transport roller pair 24 (FIG. 3). It is sent in the direction opposite to the direction (+ Y-axis direction) (-Y-axis direction) and enters the inversion path 16, the recording surface is inverted, enters the straight path 12 again, and is recorded on the second surface by the line head 10. Is performed (second figure from the bottom of FIG. 10). In FIG. 3, reference numeral 29 is a group of transport rollers provided in the reversing path 16.
The paper P recorded on both sides enters the discharge path 13 from the straight path 12 as an example of the transport destination, is discharged from the first discharge section 8, and is placed on the medium mounting section 9 (FIG. 3). (The bottom figure of FIG. 10). When the post-processing mechanism unit 4 performs post-processing, the paper P on which recording has been performed on both sides is sent from the straight path 12 to the delivery path 31.

<<< About manual paper feeding >>>
The recording mechanism unit 2 (FIG. 3) is configured to be capable of feeding paper stored in the paper storage cassette 7 for recording, as well as feeding paper from the manual feed tray 70. In FIG. 3, the dotted line R indicates the transport path when the paper is fed from the manual feed tray 70.
The paper fed from the bypass tray 70 is fed by the transport roller pair 71, merges with the straight path 12, and is recorded by the line head 10. In the case of double-sided recording, after recording on the first surface, it is inverted through the double-sided recording switchback path 15 and the inversion path 16 and recorded on the second surface.
The paper after recording is connected to the straight path 12, is conveyed through the second discharge path 74 extending linearly, and is placed on the paper discharge tray 73 through the third discharge section 72.

The present invention is not limited to the above examples, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

1 ... Recording system, 2 ... Recording mechanism, 3 ... Relay mechanism, 4 ... Post-processing mechanism,
5 ... Printer unit, 6 ... Scanner unit, 7 ... Paper storage cassette, 8 ... 1st discharge unit,
9 ... Medium mounting part, 10 ... Line head, 12 ... Straight path,
13 ... Discharge route, 14 ... Feed route, 15 ... Switchback route for double-sided recording,
16 ... Inversion path, 17 ... Feeding roller, 18 ... Separation roller pair,
19 ... Resist roller pair, 20 ... Belt transfer means, 21 ... Transfer roller pair,
22 ... Conveying roller pair, 23 ... Conveying roller pair, 24 ... Conveying roller pair,
25 ... static elimination unit, 26 ... switching unit, 27 ... control unit, 28 ... delivery unit,
29 ... Transport roller pair group, 30 ... Relay transport route, 31 ... Delivery route, 34 ... Carry-in section,
35 ... Carry-out part, 36, 37 ... Guide flap, 40 ... Second discharge part, 41 ... Receiving part,
42 ... 6th transport roller pair group, 44 ... post-processing section, 45 ... impeller section,
46 ... Discharge roller, 47 ... Discharge stacker, 50 ... Introduction route,
51 ... 1st branch path, 52 ... 1st switchback path, 53 ... 1st inversion path,
54 ... 2nd branch path, 55 ... 2nd switchback path, 56 ... 2nd inversion path,
57 ... 1st transport roller pair group, 58 ... 2nd transport roller pair group,
59 ... 3rd transfer roller pair group, 60 ... 4th transfer roller pair group,
61 ... Fifth transport roller pair, 62 ... Correction roller pair, 63 ... Discharge roller pair,
64 ... Confluence route, 70 ... Bypass tray, 71 ... Conveyor roller pair,
72 ... 3rd discharge section, 73 ... Paper output tray, 74 ... 2nd discharge path,
81 ... 1st transport path, 82 ... 2nd transport path, 83 ... Drive source,
84 ... upstream transport means, 85 ... downstream transport means, 86 ... third transport route

Claims (5)

A relay transport path for transporting the medium is provided between a recording unit that discharges a liquid to the medium for recording and a post-processing unit that performs post-processing on the medium on which recording by the recording unit is executed.
The relay transport route is
The first transport route and
A second transport path connected to the first transport path and provided downstream of the first transport path,
A third transport path connected to the downstream side of the second transport path in the medium transport direction,
It has a correction transport means for transporting the medium after executing a skew correction operation in which the tip of the medium is abutted.
The distance between the preceding medium and the succeeding medium when the preceding medium is delivered to the post-processing unit is the distance between the preceding medium and the succeeding medium before the preceding medium is carried into the second transport path. also widely,
The distance between the preceding medium and the succeeding medium when the rear end of the preceding medium is located downstream of the correction transport means is the distance when the tip of the preceding medium is located upstream of the correction transport means. Wider than the distance between the preceding medium and the succeeding medium,
The average medium transport speed in the third transport path is faster than the average medium transport speed in the second transport path, and the average medium transport speed in the second transport path is higher than the average medium transport speed in the first transport path. fast,
A recording system characterized by that. In the recording system according to claim 1,
The first transport route is
A branch path provided on the upstream side in the medium transport direction,
A first switchback path that is one of the branch destinations of the branch path and executes a switchback operation that reverses the transport direction of the medium.
A second switchback path that is the other branch destination of the branch path and executes a switchback operation that reverses the transport direction of the medium.
The first reversal path to which the medium is sent after the switchback operation in the first switchback path, and
The second inversion path to which the medium is sent after the switchback operation in the second switchback path, and
The first reversal path and the second reversal path merge with each other, and a merging path connected to the second transport path is provided.
A recording system characterized by that. In the recording system according to claim 1 or 2.
A plurality of transport roller pairs for transporting the medium in the second transport path are provided.
When the rear end of the preceding medium is located at the position of the downstream transport roller pair located on the most downstream side of the plurality of transport roller pairs, the distance between the preceding medium and the succeeding medium is such a plurality of distances. It is wider than the distance between the preceding medium and the succeeding medium when the tip of the preceding medium is located at the position of the upstream transport roller pair located on the most upstream side of the transport roller pair.
A recording system characterized by that. In the recording system according to any one of claims 1 to 3.
A recording mechanism unit including the recording unit and
A post-processing mechanism unit including the post-processing unit and
It is configured to include a relay mechanism unit that is arranged between the recording mechanism unit and the post-processing mechanism unit and has at least a part of the relay transport path.
A recording system characterized by that. A recording mechanism unit having a recording unit that discharges a liquid to a medium for recording.
A post-processing mechanism unit having a post-processing unit that performs post-processing on the medium on which recording was performed by the recording unit, and a post-processing mechanism unit.
A relay mechanism unit which is arranged between the recording mechanism unit and the post-processing mechanism unit and transports the medium delivered from the recording mechanism unit to the post-processing mechanism unit is provided.
The relay mechanism unit
The first transport route and
A second transport path connected to the first transport path and provided downstream of the first transport path,
It has a correction transport means provided in the second transport path and transports the medium after performing a skew correction operation in which the tip of the medium is abutted.
The post-processing mechanism unit has a third transport path connected to the downstream side of the second transport path in the medium transport direction.
The distance between the preceding medium and the succeeding medium when the rear end of the preceding medium is located downstream of the correction transport means is the distance between the preceding medium and the preceding medium when the tip of the preceding medium is located upstream of the correction transport means. Wider than the distance between
The average medium transport speed in the third transport path is faster than the average medium transport speed in the second transport path.
A recording system characterized by that.

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