JP2017178485A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording device transporting media in a state of a preceding medium and a subsequent medium overlapping with each other and having a simple structure thereof.SOLUTION: A recording device 1 comprises: a first feeding section 3; a second feeding section 5; a recording section 6; a first transportation path LA from the first feeding section 3 to the recording section 6; a second transportation path LB from the second feeding section 5 to the recording section 6; and a first transportation roller pair 21 being disposed just in front of the recording section 6 and transporting a medium. The second transportation path LB is above the first transportation path LA, and a confluent region AJ of the first transportation path LA and the second transportation path LB is constituted as a space at an upstream side of the first transportation roller pair 21. Further, in the space at the upstream side, a subsequent medium is caused to overlap on a preceding medium fed from the second feeding section 5 in a state of the medium fed first from the second feeding section 5 being held by the first transportation roller pair 21, both media are transported in an overlapping state, and a portion overlapping on the preceding medium in the subsequent medium is recorded by the recording section.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a recording apparatus capable of transporting a preceding medium and a succeeding medium in a partially overlapping manner.

  2. Description of the Related Art Conventionally, there has been known a recording apparatus capable of partially overlapping and transporting a preceding medium (for example, paper, the same applies hereinafter) and a succeeding medium for the purpose of improving throughput (for example, Patent Document 1). .

  In the recording apparatus described in Patent Document 1, the rear end portion of the preceding medium is pressed by the lever, and the rear end portion of the preceding medium and the front end portion of the subsequent medium are overlapped (ST5 in FIG. 2 of the same document). And ST6).

JP2015-168237A

  By the way, in the prior art, the succeeding medium is superimposed on the preceding medium by pressing the trailing end of the preceding medium with a lever and curving the preceding medium. Thus, in the prior art, since a lever is used, a lever driving device is required, and the structure is complicated as a whole. An object of the present invention is to simplify the structure of a recording apparatus that conveys a medium by overlapping a preceding medium and a succeeding medium.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
A recording apparatus that solves the above problems is fed from a first feeding unit that feeds a medium, a second feeding unit that feeds a medium, and the first feeding unit or the second feeding unit. A recording unit that records on the medium, a first conveyance path that is a path for conveying the medium from the first feeding unit to the recording unit, and a medium from the second feeding unit to the recording unit. A second transport path that is a path, and a roller pair that is disposed immediately before the recording unit and transports the medium transported from the first transport path or the second transport path to the recording unit, The two transport paths are disposed above the first transport path, and a merge area between the first transport path and the second transport path is configured as a space upstream of the roller pair, and the upstream space The medium fed in advance from the second feeding section is the roller In the state of being sandwiched between, the subsequent medium fed from the second feeding unit is overlaid on the preceding medium, and the preceding medium and the subsequent medium are transported in a superimposed state, In the succeeding medium, the recording unit records in a portion overlapping the preceding medium.

  According to this configuration, when the medium is transported so as to pass through the second transport path, the medium is configured as a space on the upstream side of the roller pair in the joining region of the first transport path and the second transport path. Pass through. When the rear end of the medium passes through the merge area, the rear end of the medium moves downward and is disposed on the first transport path. For this reason, after that, when the subsequent medium is transported so as to pass through the second transport path, the subsequent medium partially overlaps the preceding medium. Thus, in the above configuration, the preceding medium and the succeeding medium are partially overlapped without maintaining the preceding medium in a curved state. Therefore, since the mechanism for maintaining the preceding medium in the curved state is not provided, the structure of the recording apparatus can be simplified.

  In the recording apparatus, the second feeding is performed in a state where the medium fed from the second feeding unit is sandwiched between the roller pair and the rear end of the medium is positioned in the first transport path. It is preferable to control the subsequent medium fed from the feeding unit so as to overlap the preceding medium.

  According to this configuration, in a state where the preceding medium is sandwiched between the roller pair and the rear end is positioned in the first conveying path, the subsequent medium fed from the second conveying path is superimposed on the preceding medium. In this way, the certainty that the subsequent medium is partially superimposed on the previous medium is increased.

  A recording apparatus that solves the above problems is fed from a first feeding unit that feeds a medium, a second feeding unit that feeds a medium, and the first feeding unit or the second feeding unit. A recording unit that records on the medium, a first conveyance path that is a path for conveying the medium from the first feeding unit to the recording unit, and a medium from the second feeding unit to the recording unit. A second transport path that is a path, and a roller pair that is disposed immediately before the recording unit and transports the medium transported from the first transport path or the second transport path to the recording unit, The second conveyance path is disposed above the first conveyance path, and a merge area between the first conveyance path and the second conveyance path is configured as a space on the upstream side of the roller pair, and the first conveyance path is preceded by the first conveyance path. In a state where the medium fed from one feeding unit is sandwiched between the pair of rollers, A first stacking process in which the succeeding medium fed from the two feeding units is superposed on the preceding medium, and the preceding medium and the succeeding medium are transported in a superimposed state; A subsequent medium fed from the first feeding unit in a state where the medium fed from the second feeding unit is sandwiched between the pair of rollers and the rear end of the medium is positioned in the second transport path. The medium is stacked under the preceding medium, and the second stacking process in which the preceding medium and the succeeding medium are transported in an overlapped state is alternately repeated, and the preceding medium has the second medium. It has at least one of a recording operation in which the recording unit records in an overlapping portion and a recording operation in which the recording unit records in a portion of the preceding medium that overlaps with the succeeding medium.

  According to this configuration, in the state where the preceding medium is sandwiched between the pair of rollers, the subsequent medium passing through the second transport path is partially overlapped with the preceding medium by the first overlapping process. Further, the subsequent medium passing through the first transport path is partially overlapped with the preceding medium in a state where the preceding medium is held between the pair of rollers by the second overlapping process. Thus, in the above configuration, the preceding medium and the succeeding medium are partially overlapped without maintaining the preceding medium in a curved state. Therefore, since the mechanism for maintaining the preceding medium in the curved state is not provided, the structure of the recording apparatus can be simplified.

  A recording apparatus that solves the above problem includes a feeding unit that feeds a medium, a recording unit that records on the medium fed from the feeding unit, and a medium that is transported from the feeding unit to the recording unit A pair of rollers that are disposed immediately before the recording unit and that transport the medium transported from the transport path to the recording unit, and a pair of rollers on which the recording is performed by the recording unit. A reverse conveyance path that is a path that conveys upstream of the reverse conveyance path, and the conveyance path is disposed above the reverse conveyance path, and a merging region between the conveyance path and the reverse conveyance path is upstream of the roller pair. In the upstream space, the subsequent medium fed from the feeding unit in a state where the medium fed from the reverse conveyance path is sandwiched between the roller pairs in advance Over the previous medium, before Preceding medium and said subsequent medium is conveyed in overlapped state, wherein in the subsequent media overlapping and partially on the previous medium recording portion has a recording operation for recording.

  According to this configuration, when the medium is transported so as to pass through the reverse transport path, the medium passes through a place configured as a space upstream of the roller pair in the merging region of the transport path and the reverse transport path. . When the rear end of the medium passes through the merge area, the rear end of the medium is disposed below the transport path. For this reason, when the subsequent medium is subsequently conveyed so as to pass through the conveyance path, the subsequent medium partially overlaps the preceding medium. Thus, in the above configuration, the preceding medium and the succeeding medium are partially overlapped without maintaining the preceding medium in a curved state. That is, in this configuration, the reverse conveyance path is used for performing the medium overlapping process. As described above, since a dedicated mechanism for maintaining the preceding medium in a curved state is not provided, the structure of the recording apparatus can be simplified.

  A recording apparatus that solves the above problem includes a feeding unit that feeds a medium, a recording unit that records on the medium fed from the feeding unit, and a medium that is transported from the feeding unit to the recording unit And a roller pair that is disposed immediately before the recording unit and that conveys the medium conveyed from the conveyance path to the recording unit, and the upstream side of the roller pair includes the supply path. A space is formed in which the medium fed from the feeding unit enters from the position higher than the transport path immediately before the recording unit toward the transport path immediately before, and in the upstream space, In a state where the medium fed from the feeding unit is sandwiched between the pair of rollers, the succeeding medium fed from the feeding unit is overlaid on the preceding medium, and the preceding medium and the succeeding medium are stacked. The medium is transported in a stacked state, and the subsequent medium is The recording portion at a portion overlying the preceding medium has a recording operation for recording in.

  According to this configuration, the medium is transported so as to pass through the space, and when the rear end of the medium passes through the space, the rear end of the medium moves downward. For this reason, when the subsequent medium is then conveyed so as to pass through the space, the subsequent medium partially overlaps the preceding medium. Thus, in the above configuration, the preceding medium and the succeeding medium are partially overlapped without maintaining the preceding medium in a curved state. Therefore, since the mechanism for maintaining the preceding medium in the curved state is not provided, the structure of the recording apparatus can be simplified.

1 is a schematic diagram of a recording apparatus according to a first embodiment. FIG. 3 is a schematic diagram illustrating a medium stacking and conveying operation in the recording apparatus according to the first embodiment. FIG. 3 is a schematic diagram illustrating a medium stacking and conveying operation in the recording apparatus according to the first embodiment. FIG. 9 is a schematic diagram illustrating a medium stacking and conveying operation in a recording apparatus according to a second embodiment. FIG. 10 is a schematic diagram illustrating a medium transporting operation in a recording apparatus according to a second embodiment. FIG. 9 is a schematic diagram illustrating a medium stacking and conveying operation in a recording apparatus according to a second embodiment. FIG. 9 is a schematic diagram illustrating a medium stacking and conveying operation in a recording apparatus according to a second embodiment. FIG. 10 is a schematic diagram illustrating a medium stacking and conveying operation in a recording apparatus according to a third embodiment. FIG. 10 is a schematic diagram illustrating a medium stacking and conveying operation in a recording apparatus according to a third embodiment. FIG. 10 is a schematic diagram illustrating a medium stacking and conveying operation in a recording apparatus according to a third embodiment. FIG. 9 is a schematic diagram illustrating a medium overlapping and conveying operation in a recording apparatus according to a third embodiment.

<First Embodiment>
Hereinafter, an embodiment of a recording apparatus will be described with reference to the drawings.
Note that the vertical direction of the recording apparatus is defined as follows. That is, in the posture when the recording apparatus is installed in a usable state, the direction along the vertical direction is referred to as the “vertical direction” of the recording apparatus, and the upper direction in the installation state is referred to as the “upper side” of the recording apparatus. The opposite side is called the “lower side”.

  As shown in FIG. 1, the recording apparatus 1 according to the first embodiment includes a first feeding unit 3 that feeds a medium PP such as paper, and a second feeding unit 5 that feeds a medium PP such as paper. A recording unit 6 that performs recording on the medium PP fed from the first feeding unit 3 or the second feeding unit 5, a transport unit 20 that transports the medium PP in the recording unit 6, and a control device 30. Prepare. The second feeding unit 5 is disposed at a position higher than the first feeding unit 3.

  The first feeding unit 3 feeds the medium PP stored in the first storage unit 2 that stores the medium PP such as paper. For example, the first feeding unit 3 has the pickup roller 8 that feeds the topmost medium PP among the media PP stacked in the first storage unit 2, and the medium PP picked up from the first storage unit 2 in the recording unit 6. The 1st conveyance part 9 to guide is provided. The moving path of the medium PP along the first transport unit 9 is referred to as “first transport path LA”.

  The first transport unit 9 is disposed on the downstream side of the transport drive roller 10 and the transport drive roller 10, the two transport driven rollers 11 and 12 that are driven to rotate while sandwiching the medium PP between the transport drive roller 10 and the transport drive roller 10. The first guide 13 is provided. Of the two transport driven rollers 11, 12 in the first transport unit 9, the upstream one is referred to as “first transport driven roller 11”, and the downstream one is referred to as “second transport driven roller 12”.

The first transport driven roller 11 and the second transport driven roller 12 are arranged around the transport driving roller 10.
The first transport driven roller 11 is disposed on the pickup roller 8 side in the first transport path LA. The second transport driven roller 12 is downstream of the first transport driven roller 11 in the first transport path LA, is above the rotation shaft 10a of the transport driving roller 10, and is transported from the rotation shaft 10a of the transport driving roller 10. The unit 20 is disposed near the first conveying roller pair 21 (see later).

  The first guide 13 supports the medium PP at a position lower than the rotation shaft 10 a of the transport driving roller 10. Preferably, the first guide 13 supports the medium PP at a position higher than the first transport roller pair 21. Thereby, in addition to the transport force by the first transport roller pair 21, a force component of gravity (component force in the transport direction) acts on the medium PP, so that the medium PP is transported smoothly. Become.

  The second feeding unit 5 feeds the medium PP stored in the second storage unit 4 that stores the medium PP such as paper. For example, the second feeding unit 5 includes a pickup roller 14 that feeds the uppermost medium PP among the media PP stacked in the second storage unit 4, and the medium PP picked up from the second storage unit 4. And a second transporting section 15 for guiding to the second.

  The second transport unit 15 includes a second guide 16 and a control roller 17 that controls the transport of the medium PP on the second guide 16. The moving path of the medium PP along the second guide 16 is referred to as “second transport path LB”. In addition, an area in the vicinity where the first conveyance path LA and the second conveyance path LB merge is referred to as a “merging area AJ”. The merge area AJ is configured as a space on the upstream side of the first transport roller pair 21 (see later). This space is configured so that the medium PP fed from the second feeding unit 5 can enter downward in the transport direction from a position higher than the medium fed from the first feeding unit 3. The

  The second guide 16 that is a component of the second transport path LB is disposed above the first guide 13 that is a component of the first transport path LA. The second guide 16 is set so that its guide direction is lowered toward the downstream (that is, the transport direction). The downstream end of the second guide 16 is disposed above the first guide 13 and at a predetermined position upstream from the first transport roller pair 21 by a predetermined distance. That is, the second transport path LB has a portion that does not support the medium PP (hereinafter, referred to as “non-support part NS”) in the merge area AJ between the first transport path LA and the second transport path LB. Thus, a space is formed immediately before (on the upstream side) the first transport roller pair 21. This space is a space for overlapping the rear part of the preceding medium PP and the front part of the succeeding medium PP (hereinafter referred to as “overlapping space SP”, see later).

  The overlapping space SP is also a space for allowing the rear part of the medium PP to fall naturally. Specifically, in the overlapping space SP, when the medium PP is transported and the rear end of the medium PP passes the downstream end of the second guide 16, the rear end of the medium PP is more than the second transport driven roller 12. It is configured as a sufficiently wide area along the second transport path LB so that it can move downward.

  The transport unit 20 transports the medium PP fed by the first feeding unit 3 or the second feeding unit 5. For example, the transport unit 20 includes two transport roller pairs 21 and 22 that are disposed on the downstream side of the transport driven rollers 11 and 12. Of the two transport roller pairs 21 and 22 in the transport unit 20, the upstream one is referred to as a “first transport roller pair 21”, and the downstream one is referred to as a “second transport roller pair 22”. Each of the first transport roller pair 21 and the second transport roller pair 22 functions as a roller pair that transports the medium PP to the recording unit 6 by sandwiching and rotating the medium PP.

  A medium support unit 23 for supporting the medium PP is disposed between the first transport roller pair 21 and the second transport roller pair 22, and the recording unit 6 is disposed above the medium support unit 23. . Although not shown, the recording unit 6 includes a carriage supported by a guide shaft and capable of reciprocating in the scanning direction, and a recording head mounted on the carriage. Note that the scanning direction is a direction that intersects (for example, is orthogonal to) the conveyance direction of the medium PP. The recording head performs recording by ejecting liquid from the nozzle to the medium PP.

  The first transport roller pair 21 is disposed immediately upstream (upstream side) of the recording unit 6 and downstream of the merge area AJ. The distance between both axes of the first conveyance roller pair 21 and the second conveyance driven roller 12 is separated by a predetermined distance. The predetermined distance in this case is at least shorter than the length of the medium PP (the length in the vertical direction along the transport direction). The reason is to take a skew of the medium PP. That is, the skew removal is performed by pushing the medium PP forward by driving the conveyance driving roller 10 in a state where the front end of the medium PP is abutted against the first conveyance roller pair 21.

Next, the control device 30 will be described.
The control device 30 controls the recording unit 6 via the drive device. The control device 30 controls the pickup rollers 8 and 14 via the drive device based on the output signals of two sensors (hereinafter referred to as “first sensor 31” and “second sensor 32”). The roller 17, the first transport driven roller 11, the second transport driven roller 12, the first transport roller pair 21, and the second transport roller pair 22 are controlled. Thus, the transport position of the medium PP is controlled, and the preceding medium PP and the succeeding medium PP are partially overlapped.

The first sensor 31 is disposed immediately upstream (upstream side) of the second transport driven roller 12 in the first transport path LA.
The second sensor 32 is disposed at the downstream end of the second guide 16 in the second transport path LB.

  The first sensor 31 and the second sensor 32 are in an “ON” state when detecting the medium PP, and are in an “OFF” state when not detecting the medium PP. The control device 30 determines that the front end of the medium PP has passed near the sensor based on the first sensor 31 and the second sensor 32 being switched from “OFF” to “ON”. The control device 30 determines that the rear end of the medium PP has passed near the sensor based on the first sensor 31 and the second sensor 32 being switched from “ON” to “OFF”.

  The operation of the recording apparatus 1 will be described with reference to FIGS. Hereinafter, in this description, the preceding medium PP is referred to as “preceding medium PPA”, and the medium PP subsequent to the preceding medium PP is referred to as “subsequent medium PPB”.

  The recording apparatus 1 performs the normal transport operation of transporting the subsequent medium PPB with a predetermined interval with respect to the preceding medium PPA, and the preceding medium PPA and the subsequent medium PPB in a state where a part of the succeeding medium PPB is superimposed on the preceding medium PPA. And an overlapping conveying operation for conveying. Here, the overlapping conveyance operation will be described.

The overlapping conveyance operation is executed using the medium PP accommodated in the second feeding unit 5.
As shown in FIG. 2, when the overlapping conveyance operation is started, the preceding medium PPA is picked up from the second storage unit 4, and the preceding medium PPA is conveyed along the second conveying path LB by driving the control roller 17. The By this conveyance, the front end of the preceding medium PPA passes through the downstream end of the second guide 16 and then abuts against the first conveyance roller pair 21. At this time, skew and cueing of the preceding medium PPA are executed, and recording of the preceding medium PPA by the recording unit 6 is started.

  When the recording of the preceding medium PPA proceeds and the rear end of the preceding medium PPA passes the downstream end of the second guide 16, the rear part of the preceding medium PPA reaches the non-supporting part NS of the second transport path LB. The rear end of the preceding medium PPA moves downward by the action of gravity. Further, when the rear end of the preceding medium PPA passes the downstream end of the second guide 16, the second sensor 32 detects the rear end of the preceding medium PPA. Based on this detection, the control device 30 causes the pickup roller 14 to pick up the subsequent medium PPB, and drives the control roller 17 to convey the subsequent medium PPB forward. When the front end of the subsequent medium PPB reaches immediately before the first transport path LA, the control device 30 stops the transport of the subsequent medium PPB by stopping the driving of the control roller 17.

  At this time, as shown in FIG. 3, an overlap between the preceding medium PPA and the succeeding medium PPB is prepared. When the last pass of recording of the preceding medium PPA is completed, the control device 30 conveys the succeeding medium PPB and executes skew removal. Thereafter, the control device 30 conveys the preceding medium PPA and the succeeding medium PPB together in a state where the trailing edge of the preceding medium PPA and the leading edge of the succeeding medium PPB overlap each other. The recording unit 6 is driven based on a signal input to the recording unit 6 and records ink on the medium PP. In the case where the portion (or part of the overlapping portion) that overlaps the preceding medium PPA in the subsequent medium PPB is within the print range of the medium PP, ink is also recorded in the overlapping portion.

Next, the operation of the recording apparatus 1 configured as described above will be described.
As described above, the recording apparatus 1 includes the first transport path LA and the second transport path LB, and the merge area AJ is configured as a space on the upstream side of the first transport roller pair 21. Specifically, this space is configured by providing a non-support portion NS in the second transport path LB. By providing such a space in the middle of the second transport path LB, when the rear part of the medium PP is not supported by the forward movement of the medium PP, the rear part of the medium PP moves downward. For this reason, the succeeding medium PPB can be arranged above the rear part of the preceding medium PPA. In this way, the preceding medium PPA and the succeeding medium PPB are overlapped.

  According to such a configuration, a lever and a driving mechanism for rotating the lever, which are employed in the prior art as means for overlapping the preceding medium PPA and the succeeding medium PPB, are not required. In other words, the overlap of the preceding medium PPA and the succeeding medium PPB is easily realized by the control of the control roller 17. Further, as described above, since ink can be recorded on the overlapping portion of the preceding medium PPA and the succeeding medium PPB, the print range is less limited than a configuration in which ink is not recorded on the overlapping portion.

According to the recording apparatus 1 of the present embodiment, the following effects can be obtained.
(1) When the medium PP is transported so as to pass through the second transport path LB, the medium PP is in the first transport roller pair 21 (roller in the merging area AJ of the first transport path LA and the second transport path LB. It passes through the upstream space (overlapping space SP). When the rear end of the medium PP passes through the merge area AJ, the rear end of the medium PP moves downward and is disposed on the first transport path LA. Therefore, after that, when the subsequent medium PPB is transported so as to pass through the second transport path LB, the subsequent medium PPB partially overlaps the preceding medium PPA. Thus, the preceding medium PPA and the succeeding medium PPB are partially overlapped without maintaining the preceding medium PPA in the curved state. Therefore, since the mechanism for maintaining the preceding medium PPA in the curved state is not provided, the structure of the recording apparatus 1 can be simplified.

  (2) In the embodiment, the succeeding medium PPB fed from the second feeding unit 5 is stacked on the preceding medium PPA in a state where the rear end of the preceding medium PPA is positioned in the first transport path LA. By doing so, when the preceding medium PPA is sandwiched between the first transport roller pair 21 and the rear end of the preceding medium PPA is descending, the rear end of the preceding medium PPA is not positioned on the first transport path LA. As compared with the case where the succeeding medium PPB is overlaid on the preceding medium PPA (hereinafter referred to as a comparison), the certainty that the succeeding medium PPB is partially overlapped on the preceding medium PPA is increased. In the case of comparison, the rear end of the preceding medium PPA and the front end of the succeeding medium PPB may collide, and the preceding medium PPA and the succeeding medium PPB may not overlap or the medium PP may be deformed due to the collision. is there.

Second Embodiment
A recording apparatus 101 according to the second embodiment will be described with reference to FIG.
The recording apparatus 101 according to the second embodiment is different from the recording apparatus 1 according to the first embodiment in the following points. In other words, in the present embodiment, the second sensor 32a is disposed at a predetermined position upstream of the downstream end of the second guide 16 in the second transport path LB. In the present embodiment, the overlapping conveyance operation is executed using the medium PP accommodated in the first feeding unit 3 and the medium PP accommodated in the second feeding unit 5.

With reference to FIGS. 4 to 7, the overlapping conveyance operation will be described.
As shown in FIG. 4, when the overlap conveyance operation is started, the preceding medium PPA is picked up from the first storage unit 2, and the preceding medium PPA is moved along the first conveyance path LA by the driving rotation of the conveyance driving roller 10. Be transported. By this conveyance, the front end of the preceding medium PPA passes through the downstream end portion of the first guide 13 and then abuts against the first conveyance roller pair 21. At this time, skew and cueing of the preceding medium PPA are executed, and recording of the preceding medium PPA by the recording unit 6 is started.

  As shown in FIG. 5, when the recording of the preceding medium PPA proceeds and the trailing edge of the preceding medium PPA passes the first sensor 31, the first sensor 31 detects the trailing edge of the preceding medium PPA. Based on this detection, the control device 30 picks up the subsequent medium PPB stacked on the second feeding unit 5 by the pickup roller 14 and conveys the subsequent medium PPB forward by driving the control roller 17. When the front end of the subsequent medium PPB reaches immediately before the first transport path LA, the control device 30 stops the transport of the subsequent medium PPB. At this time, the front end portion of the succeeding medium PPB is disposed on the preceding medium PPA. In this way, an overlap between the preceding medium PPA and the succeeding medium PPB is prepared. Thereafter, when the last pass of recording of the preceding medium PPA is completed, the control device 30 conveys the succeeding medium PPB and executes skew removal. Then, the control device 30 conveys the preceding medium PPA and the succeeding medium PPB together in a state where the rear end portion of the preceding medium PPA and the front end portion of the succeeding medium PPB overlap each other. In the case where the portion (or part of the overlapping portion) that overlaps the preceding medium PPA in the subsequent medium PPB is within the print range of the medium PP, ink is also recorded in the overlapping portion. At this point, the succeeding medium PPB precedes the succeeding medium PP. Therefore, the succeeding medium PPB is hereinafter referred to as a preceding medium PPA.

  When the recording on the preceding medium PPA proceeds to a specified range (for example, a preset number of passes), the control device 30 picks up the succeeding medium PPB from the first feeding unit 3 and places the succeeding medium PPB on the first transport path LA. Convey along. When the trailing edge of the succeeding medium PPB fed from the first feeding unit 3 reaches the first sensor 31, the control device 30 stops transporting the succeeding medium PPB and waits for the succeeding medium PPB in the first transport path LA. Let

  As shown in FIG. 6, when the recording of the preceding medium PPA proceeds and the trailing edge of the preceding medium PPA passes through the second sensor 32a, the second sensor 32a detects the trailing edge of the succeeding medium PPB. At this time, the rear end of the preceding medium PPA is supported and lifted by the second guide, and a space (hereinafter referred to as “preceding medium lower space”) is formed below the rear portion of the preceding medium PPA. Based on the second sensor 32a detecting the trailing edge of the succeeding medium PPB, the control device 30 causes the succeeding medium PPB waiting on the first transport path LA to be transported by the transport driving roller 10 and the two transport driven rollers 11 and 12. When the front end of the succeeding medium PPB reaches a predetermined position on the upstream side of the first transport roller pair 21, the transport of the succeeding medium PPB is stopped. At this time, the front end portion of the succeeding medium PPB is disposed below the preceding medium PPA. That is, the succeeding medium PPB is inserted into the space below the preceding medium. In this way, an overlap between the preceding medium PPA and the succeeding medium PPB is prepared.

  As shown in FIG. 7, when the last pass of recording of the preceding medium PPA is completed, the control device 30 conveys the succeeding medium PPB and performs skew removal. Thereafter, the recording apparatus 101 conveys the preceding medium PPA and the succeeding medium PPB together in a state where the trailing edge of the preceding medium PPA and the leading edge of the succeeding medium PPB overlap each other. In a case where a portion of the preceding medium PPA that overlaps the succeeding medium PPB (or a part of the overlapping portion) is within the printing range of the medium PP, ink is also recorded in the overlapping portion.

Next, the operation of the recording apparatus 101 configured as described above will be described.
As described above, the recording apparatus 101 includes the first transport path LA and the second transport path LB, and the merge area AJ is configured as a space on the upstream side of the first transport roller pair 21. Specifically, this space is configured by providing a non-support portion NS in the second transport path LB. Such a space has the following two functions. First, when the rear part of the preceding medium PPA is arranged in the merge area AJ, the succeeding medium PPB is superimposed on the preceding medium PPA by sending out the succeeding medium PPB in the second transport path LB. Secondly, when the rear portion of the preceding medium PPA is supported by the second transport path LB and is disposed on the merge area AJ, and a space is formed below the rear portion of the preceding medium PPA, the first transport path LA. The succeeding medium PPB is overlaid on the lower side of the preceding medium PPA. In this way, the preceding medium PPA and the succeeding medium PPB are overlapped.

According to the recording apparatus 101 of the present embodiment, the following effects can be obtained.
By the first stacking process, the succeeding medium PPB passing through the second transport path LB is partially overlapped with the preceding medium PPA while the preceding medium PPA is sandwiched between the first transport roller pair 21. Further, by the second overlapping process, the subsequent medium PPB passing through the first transport path LA is partially overlapped with the preceding medium PPA in a state where the preceding medium PPA is sandwiched between the first transport roller pair 21. Thus, in the above configuration, the preceding medium PPA and the succeeding medium PPB are partially overlapped without maintaining the preceding medium PPA in the curved state. Therefore, since the mechanism for maintaining the preceding medium PPA in the curved state is not provided, the structure of the recording apparatus 101 can be simplified.

<Third Embodiment>
A recording apparatus 201 according to the third embodiment will be described with reference to FIGS.
The recording apparatus 201 according to the third embodiment is different from the recording apparatus 101 according to the second embodiment in the following points. That is, in the present embodiment, the recording apparatus 201 includes a switchback mechanism 210 that enables double-sided printing. And in the overlap conveyance operation in this embodiment, in addition to the operation shown in the second embodiment, the medium PP conveyed by the switchback and the first feeding unit 3 or the second feeding unit 5 are fed. The medium PP is used.

  The switchback mechanism 210 includes a switching lever 211 that switches the conveyance path, a switchback guide 212 that configures a reverse conveyance path that reversely moves the printed medium PP and returns it to the upstream side of the recording unit 6, and a switchback guide 212 A third transport roller pair 213 and a switching roller 214 are provided on the way. A third sensor 33 that detects the medium PP is disposed on the downstream side of the transport path of the switchback mechanism 210.

The switching lever 211 is disposed on the downstream side of the second transport roller pair 22. The switching lever 211 is rotatable between the first position and the second position.
The first position is a position of the switching lever 211 where the upper surface of the switching lever 211 is arranged along the transport path. When the switching lever 211 is disposed at the first position, the medium PP is transported downstream in the transport path.

  The second position is a position of the switching lever 211 where the downstream end of the switching lever 211 moves below the transport path and opens the entrance of the reverse transport path LC (described later). When the switching lever 211 is disposed at the second position, the medium PP can be guided to the switchback guide 212.

  The switching roller 214 switches the transport direction of the medium PP by switching the rotation direction. Specifically, the switching roller 214 transports the medium PP discharged from the recording unit 6 in the discharge direction by forward rotation, and reversely rotates the medium PP in the direction opposite to the discharge direction (hereinafter referred to as “switchback direction”). .) Is transported to the medium PP.

  The switchback guide 212 constitutes a path (reverse transport path LC) for guiding the medium PP transported in the switchback direction from the downstream area of the recording unit 6 to the merge area AJ. Specifically, the switchback guide 212 is disposed below the medium support portion 23, and one end 212a of the switchback guide 212 is disposed below the switching lever 211 so as to receive the medium PP to be switched back. The other end 212b of the switchback guide 212 is disposed in the lower opening 215 of the merge area AJ.

With reference to FIGS. 8 to 11, the operation when the succeeding medium PPB is overlaid on the switched-back preceding medium PPA will be described.
FIG. 8 shows the position of the preceding medium PPA during recording. When the recording on one surface of the preceding medium PPA is completed under the control of the driving device, the control device 30 sends the preceding medium PPA to the downstream side of the recording unit 6.

  As shown in FIG. 9, when the trailing end PPX of the preceding medium PPA passes through the switching lever 211, the control device 30 places the switching lever 211 in the second position and rotates the switching roller 214 in the reverse direction. That is, the control device 30 guides the preceding medium PPA to the switchback guide 212. The preceding medium PPA conveyed to the switchback guide 212 is subsequently conveyed downstream in the reverse conveyance path LC by the third conveyance roller pair 213 provided in the switchback guide 212.

  As shown in FIG. 10, when the trailing edge PPX of the preceding medium PPA passes through the third sensor 33, the trailing edge PPX of the preceding medium PPA then passes through the merge area AJ and reaches the first transport roller pair 21. It reaches. At this time, the back surface of the preceding medium PPA faces upward.

  As shown in FIG. 11, the control device 30 detects that the third sensor 33 detects the trailing edge PPX of the preceding medium PPA, and after the predetermined period has elapsed from the detection, the second supply is performed under the control of the driving device. The succeeding medium PPB stacked on the feeding unit 5 is picked up by the pickup roller 14. Thereafter, the control device 30 drives the control roller 17 to transport the subsequent medium PPB forward, and stops transporting the subsequent medium PPB when the front end of the subsequent medium PPB reaches immediately before the first transport path LA. At this time, the front end portion of the succeeding medium PPB is disposed on the preceding medium PPA. In this way, an overlap between the preceding medium PPA and the succeeding medium PPB is prepared (see the solid line in FIG. 11). The same control is performed when the medium PP accommodated in the first feeding unit 3 is superimposed on the preceding medium PPA (see the two-dot chain line in FIG. 11). Thereafter, when the last pass of recording of the preceding medium PPA is completed, the control device 30 conveys the succeeding medium PPB and executes skew removal. Thereafter, the recording apparatus 201 conveys the preceding medium PPA and the succeeding medium PPB together in a state where the trailing edge of the preceding medium PPA and the leading edge of the succeeding medium PPB overlap each other. In the case where the portion (or part of the overlapping portion) that overlaps the preceding medium PPA in the subsequent medium PPB is within the print range of the medium PP, ink is also recorded in the overlapping portion.

According to the recording apparatus 201 of the present embodiment, the following effects can be obtained.
The recording apparatus 201 returns to the merge area AJ by switchback, and sends the preceding medium PPA from one of the first feeding section 3 and the second feeding section 5 to the preceding medium PPA entering from below the merge area AJ. Then, the succeeding medium PPB is overlaid on the preceding medium PPA. As described above, in the above configuration, the preceding medium PPA and the succeeding medium PPB are overlapped without maintaining the preceding medium PPA in the curved state. That is, since the mechanism for maintaining the preceding medium PPA in the curved state is not provided, the structure of the recording apparatus 201 can be simplified. Further, the certainty that the succeeding medium PPB is overlaid on the preceding medium PPA is increased.

<Other embodiments>
-In 1st Embodiment-3rd Embodiment, although the conveyance drive roller 10 is comprised by one roller, it may be comprised by several roller pairs.

  -The form and arrangement | positioning of the 1st accommodating part 2 and the 2nd accommodating part 4 are not limited to the example of embodiment. For example, the first storage unit 2 can be disposed immediately below the second storage unit 4. The recording apparatus 1 having such a structure has the same effects as those of the second embodiment.

  In the first embodiment, the recording apparatus 1 includes the first feeding unit 3 and the second feeding unit 5, but the first feeding unit 3 can be omitted. That is, the recording apparatus 1 is configured to have a space on the upstream side of the above-described first transport roller pair 21 (see later). This upstream space is configured such that the medium PP can enter downward toward the immediately preceding transport path from a position higher than the transport path immediately before the recording unit 6. In short, the recording apparatus 1 includes a transport path that enters from above the transport path along the transport direction of the medium PP in the recording unit 6, and the area where both transport paths intersect is upstream of the first transport roller pair 21. It is configured as a side space. According to this configuration, the medium PP fed from the second feeding unit 5 is transported in the same manner as the transport operation of the medium PP described in the first embodiment. The effects equivalent to those of the recording apparatus 1 shown in the first embodiment are achieved.

  DESCRIPTION OF SYMBOLS 1 ... Recording device, 2 ... 1st accommodating part, 3 ... 1st feeding part, 4 ... 2nd accommodating part, 5 ... 2nd feeding part, 6 ... Recording part, 8 ... Pickup roller, 9 ... 1st conveyance , 10... Transport drive roller, 10a... Rotating shaft, 11... 1st transport driven roller, 12... 2nd transport driven roller, 13 ... 1st guide, 14 ... Pickup roller, 15 ... 2nd transport unit, 16. 2 guide, 17 ... control roller, 20 ... transport unit, 21 ... first transport roller pair, 22 ... second transport roller pair, 23 ... medium support unit, 30 ... control device, 31 ... first sensor, 32 ... second Sensor, SP ... Overlapping space, NS ... Non-supporting part, LA ... First transport path, LB ... Second transport path, LC ... Reverse transport path, AJ ... Confluence area.

Claims (5)

A first feeding unit for feeding a medium;
A second feeding unit for feeding the medium;
A recording unit for recording on the medium fed from the first feeding unit or the second feeding unit;
A first transport path that is a path for transporting a medium from the first feeding unit to the recording unit;
A second transport path that is a path for transporting a medium from the second feeding unit to the recording unit;
A roller pair disposed immediately before the recording unit and configured to convey the medium conveyed from the first conveyance path or the second conveyance path to the recording unit;
The second transport path is disposed above the first transport path;
The merge area between the first transport path and the second transport path is configured as a space on the upstream side of the roller pair,
In the upstream space, with the medium previously fed from the second feeding unit being sandwiched between the roller pairs, the succeeding medium fed from the second feeding unit is moved to the preceding space. It is stacked on the medium, and the preceding medium and the subsequent medium are conveyed in a stacked state,
The recording apparatus having a recording operation in which the recording unit records in a portion of the succeeding medium that overlaps the preceding medium. Feeding from the second feeding unit in a state where the medium fed from the second feeding unit in advance is sandwiched between the pair of rollers and the rear end of the medium is positioned in the first transport path. The recording apparatus according to claim 1, wherein a subsequent medium to be recorded is controlled to be superimposed on the preceding medium. A first feeding unit for feeding a medium;
A second feeding unit for feeding the medium;
A recording unit for recording on the medium fed from the first feeding unit or the second feeding unit;
A first transport path that is a path for transporting a medium from the first feeding unit to the recording unit;
A second transport path that is a path for transporting a medium from the second feeding unit to the recording unit;
A roller pair disposed immediately before the recording unit and configured to convey the medium conveyed from the first conveyance path or the second conveyance path to the recording unit;
The second transport path is disposed above the first transport path;
The merge area between the first transport path and the second transport path is configured as a space on the upstream side of the roller pair,
In a state where the medium fed from the first feeding unit is sandwiched between the pair of rollers, the succeeding medium fed from the second feeding unit is stacked on the preceding medium, A first stacking process in which a preceding medium and the succeeding medium are stacked, and a medium fed from the second feeding unit in advance is sandwiched between the roller pair and the medium In a state where the rear end is located in the second transport path, the subsequent medium fed from the first feeding unit is stacked under the preceding medium, and the preceding medium and the subsequent medium are stacked. The second stacking process conveyed in the state of being carried out is repeated alternately,
A recording operation in which the recording unit records a portion of the succeeding medium that overlaps the preceding medium, and a recording operation that records the portion of the preceding medium that overlaps the succeeding medium. A recording apparatus having at least one of recording operations. A feeding unit for feeding a medium;
A recording unit for recording on the medium fed from the feeding unit;
A transport path that is a path for transporting a medium from the feeding unit to the recording unit;
A roller pair that is disposed immediately before the recording unit and conveys the medium conveyed from the conveyance path to the recording unit;
A reverse conveyance path that is a path for conveying the medium on which the recording has been performed to the upstream of the roller pair, and
The transport path is disposed above the reverse transport path,
The merging region of the transport path and the reverse transport path is configured as a space on the upstream side of the roller pair,
In the upstream space, the subsequent medium fed from the feeding unit is placed on the preceding medium in a state where the medium previously fed from the reverse conveyance path is sandwiched between the pair of rollers. Stacked, transported in a state where the preceding medium and the subsequent medium are stacked,
The recording apparatus having a recording operation in which the recording unit records in a portion of the succeeding medium that overlaps the preceding medium. A feeding unit for feeding a medium;
A recording unit for recording on the medium fed from the feeding unit;
A transport path that is a path for transporting a medium from the feeding unit to the recording unit;
A roller pair that is disposed immediately before the recording unit and conveys the medium conveyed from the conveyance path to the recording unit, and
On the upstream side of the roller pair, a space is formed in which the medium fed from the feeding unit enters from the position higher than the conveyance path immediately before the recording unit toward the previous conveyance path,
In the space on the upstream side, the medium previously fed from the feeding unit is sandwiched between the pair of rollers, and the subsequent medium fed from the feeding unit is placed on the preceding medium. And the preceding medium and the subsequent medium are transported in a state of being overlaid,
The recording apparatus having a recording operation in which the recording unit records in a portion of the succeeding medium that overlaps the preceding medium.

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