JP2016094007A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording device which can transfer even a small-sized recording medium in stable posture.SOLUTION: An ink-jet printer includes a first transfer mechanism 5 for transferring recording paper 100, and a second transfer mechanism 6 for transferring a tape 101 that is smaller in width than the recording paper 100. Separation distance between a second supply roller 44 and a second ejection roller 45 of the second transfer mechanism 6 is smaller than separation distance between a first supply roller 18 and a first ejection roller 19 of the first transfer mechanism 5. At least one of the second supply roller 44 and the second ejection roller 45 is located within a recording range where a plurality of nozzles 16 of an ink-jet head 4 are arranged. The ink-jet head 4 carries out recording to the tape 101 by using only some nozzles 16 of the plurality of nozzles 16 which are arranged between the second supply roller 44 and the second ejection roller 45.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a recording apparatus that records characters, images, and the like on a recording medium.

  Patent Document 1 discloses an ink jet printer that records an image or the like on a recording sheet that is a recording medium. The ink jet printer includes an ink jet head that ejects ink onto a recording paper, and a transport mechanism that transports the recording paper to the ink jet head.

  The ink jet head ejects ink toward the recording paper while moving with respect to the recording paper along a predetermined scanning direction. The transport mechanism has two rollers arranged to sandwich the inkjet head in a transport direction orthogonal to the scanning direction, and transports the recording paper supplied by the paper feed mechanism in the transport direction by the two rollers. To do.

JP 2011-173374 A (FIG. 1)

  By the way, in the recording apparatus such as the above-described ink jet printer, a function to record characters, images, and the like on two or more types of recording media having greatly different sizes may be required depending on the user. For example, not only recording paper such as A4 and A3, but also recording on a recording medium having a considerably small length and width, such as business card size paper, sticky note paper, or tape paper. However, in the ink jet printer as described in Patent Document 1, in a transport mechanism that transports a relatively large recording medium (recording paper), the distance between two rollers is large, so that the length of a sticky note or the like is short. The recording medium cannot be transported. Further, in the case of an elongated recording medium such as tape paper, the conveyance itself may be possible, but since the width is small, it is easy to twist between the two rollers, and the posture of the recording medium becomes unstable.

  An object of the present invention is to provide a recording apparatus that can transport a recording medium having a small size, with a stable posture.

According to a first aspect of the present invention, there is provided a recording apparatus having a plurality of recording elements arranged in a predetermined first direction, a first supply roller and a first discharge roller arranged so as to sandwich the recording head in the first direction. A first transport mechanism for transporting a first recording medium along the first direction to the recording head by the first supply roller and the first discharge roller; and in the first direction. A second supply roller and a second discharge roller arranged at an interval, and the second supply roller and the second discharge roller cause the second recording medium to move in the first direction with respect to the recording head. A second transport mechanism that transports the first supply roller and the first discharge roller in a first distance between the first supply roller and the first discharge roller. Smaller than the direction separation distance,
In the first direction, at least one of the second supply roller and the second discharge roller is located within a recording range in the first direction in which the plurality of recording elements of the recording head are disposed, and the recording For the second recording medium transported by the second transport mechanism, the head supplies the second supply roller and the second discharge roller among the plurality of recording elements arranged in the first direction. The recording is performed using only a part of the recording elements arranged between the two.

  In the present invention, the separation distance between the second supply roller that conveys the second recording medium and the second discharge roller is greater than the separation distance between the first supply roller that conveys the first recording medium and the first discharge roller. Since it is small, the second recording medium having a small size (length or width) can be stably conveyed. Furthermore, at least one of the second supply roller and the second discharge roller is disposed within the recording range of the recording head in the first direction, thereby further reducing the distance between the second supply roller and the second discharge roller. It becomes possible. However, among the plurality of recording elements in the recording range, a recording element that is not between the second supply roller and the second discharge roller cannot be used for recording on the second recording medium. Therefore, the recording head performs recording on the second recording medium using only a part of the recording elements disposed between the second supply roller and the second discharge roller.

  In a recording apparatus according to a second invention, in the first invention, the recording head includes a plurality of first recording elements arranged over a predetermined first range in the first direction, and the first range, and A plurality of second recording elements arranged over a second range that is longer in the first direction than the first range, and the second supply roller and the second discharge roller are within the first range in the first direction. The recording head is disposed so as to sandwich at least a part of the recording elements, and the recording head has the plurality of recording elements within the first range with respect to the second recording medium conveyed by the second conveying mechanism. Of the first recording element and the plurality of second recording elements, recording is performed using a recording element sandwiched between the second supply roller and the second discharge roller in the first direction. is there.

  In the present invention, the recording head has two types of recording elements having different lengths in the first direction. In addition, when recording on the second recording medium, a recording element in the first range, which is a range in which the first recording element having a short length in the first direction is arranged, is used. Thereby, it is possible to record on the second recording medium having a small size by using both of the two types of recording elements.

  According to a third aspect of the present invention, there is provided a recording apparatus according to the first or second aspect, wherein the first recording medium is transported by the first transport mechanism and the second recording medium is transported by the second transport mechanism. And the guide direction guides the second recording medium from the second discharge roller to the first discharge roller of the first transfer mechanism, and is recorded by the recording head. Further, the second recording medium is guided from the second discharge roller by the guide means and is sent to the first discharge roller.

  In the present invention, the first recording medium and the second recording medium are conveyed in the same direction. Then, the second recording medium recorded by the recording head is guided from the second discharge roller by the guide means and discharged by the same first discharge roller as the first recording medium. According to this, the discharge path after recording in the recording head of the first recording medium and the second recording medium can be made common.

  According to a fourth aspect of the present invention, there is provided the recording apparatus according to any one of the first to third aspects, wherein the recording head moves in a predetermined second direction intersecting the first direction. Alternatively, the recording is performed on the second recording medium, and the width of the second recording medium in the second direction is smaller than the width of the first recording medium in the second direction. The second transport mechanism transports the second recording medium into an area where the first recording medium is transported in an area facing the recording head moving in the second direction. It is characterized by doing.

  In a region facing the recording head (that is, a region where recording is performed by the recording head), a second recording medium having a width smaller than that of the first recording medium is a region in which the first recording medium is conveyed. Conveyed in. Accordingly, even when recording is performed on the second recording medium, the recording head may be moved within the moving range in the second direction when recording on the first recording medium. That is, even if the recording function to the second recording medium is added, the size of the recording apparatus in the second direction does not increase.

  According to a fifth aspect of the present invention, in the recording apparatus according to any one of the first to fourth aspects, the second transport mechanism moves the second recording medium in a direction perpendicular to the plane including the first direction. And transporting along the first direction at a position farther from the recording head than the first recording medium.

  In the present invention, the transport position of the second recording medium is farther from the recording head than the transport position of the first recording medium. Therefore, the first recording medium can be transported at a position closer to the recording head than the second recording medium while the second recording medium is kept waiting at a position facing the recording head. That is, the first recording medium can be recorded while the second recording medium is set.

  A recording apparatus according to a sixth aspect of the present invention is the recording apparatus according to any one of the first to fifth aspects, wherein the recording head includes a plurality of nozzles that eject ink as the plurality of recording elements. The ink is discharged toward at least one of the second supply roller and the second discharge roller of the second transport mechanism and the edge of the first recording medium in the first direction within a recording range in one direction. An ink receiving portion that receives ink that has not landed out of the ink is arranged side by side in the first direction.

  In the present invention, the recording head is an ink jet head provided with a plurality of nozzles each ejecting ink. In order to perform so-called borderless printing by using this inkjet head to record an image or the like without providing a margin at the edge of the recording medium, ink that was ejected toward the edge but did not land on the recording medium An ink receiving portion is required for receiving. In this regard, in the present invention, the ink receiving portion is disposed at a position different from the position where the roller of the second transport mechanism is disposed in the recording range in the first direction of the recording head. As a result, a recording apparatus is provided that has both a function of recording on the second recording medium and a borderless printing function on the first recording medium.

According to a seventh aspect of the present invention, there is provided a recording apparatus according to any one of the first to fifth aspects, wherein the recording heads are arranged in the first direction and each ejects ink. A common ink chamber that extends in the first direction and communicates in common with the plurality of nozzles, and an ink supply unit that communicates with one end of the common ink chamber in the first direction,
Among the plurality of nozzles arranged in the first direction, a part of the nozzles disposed between the second supply roller and the second discharge roller is located closer to the one end than the other nozzles. It is characterized by being.

In the present invention, the recording head is an ink-jet head provided with a plurality of nozzles each ejecting ink, and the plurality of nozzles communicate with a common ink chamber extending in the first direction. In this configuration, among the plurality of nozzles, the nozzle that communicates with the portion of the common ink chamber that is away from the ink supply unit has a frequency of occurrence of ejection abnormality for the following reasons compared to the nozzle that communicates at a position close to the ink supply unit. Get higher. First, bubbles tend to stay in the first place on the leading end side of the common ink chamber away from the ink supply unit. In addition, when trying to discharge air bubbles from each nozzle by a known purge, the ink flow rate at the time of purging becomes small due to the pressure loss up to this point on the front side of the common ink chamber, so that the air bubbles are discharged. Hateful. In the present invention, some of the nozzles used when recording on the second recording medium are located closer to the communication portion with the ink supply portion of the common ink chamber than the other nozzles. That is, when recording on the second recording medium, nozzles that are less likely to cause ejection abnormalities are used.

  According to an eighth aspect of the present invention, in any one of the first to seventh aspects, the length of the second recording medium in the first direction is the first supply roller and the first discharge. The roller is shorter than the separation distance in the first direction.

  When the length of the second recording medium in the first direction is shorter than the distance between the first supply roller and the first discharge roller, the second recording medium is used for the first supply roller and the first discharge roller. Cannot be transported. In the present invention, in such a second transport mechanism for transporting the second recording medium, the separation distance between the second supply roller and the second discharge roller is reduced, so that the second recording medium is stably provided. Can be transported.

  According to a ninth aspect of the present invention, there is provided the recording apparatus according to any one of the first to eighth aspects, wherein the width of the second recording medium in a direction orthogonal to the first direction is the first recording medium. It is characterized by being small compared to.

  When the width of the second recording medium is smaller than that of the first recording medium, the first recording medium is transported by the first supply roller and the first discharge roller that convey the first recording medium. Compared to, the posture during transport becomes unstable. In the present invention, in such a second transport mechanism for transporting the second recording medium, the separation distance between the second supply roller and the second discharge roller is reduced, so that the second recording medium is stably provided. Can be transported.

A recording apparatus according to a tenth aspect of the invention includes a recording head having a plurality of recording elements arranged in a predetermined first direction, and a first supply roller and a discharge roller arranged so as to sandwich the recording head in the first direction. And a first transport mechanism that transports the first recording medium along the first direction to the recording head by the first supply roller and the discharge roller, and a second supply roller, A second transport mechanism for transporting the second recording medium to the recording head by the second supply roller in the same direction as the transport direction of the first recording medium by the first transport mechanism; and the recording Guiding means for guiding the second recording medium recorded by the head to the discharge roller of the first transport mechanism;
In the first direction, the second supply roller is located within a recording range in the first direction where the plurality of recording elements of the recording head are arranged, and the recording head is moved by the second transport mechanism. A part of the plurality of recording elements arranged in the first direction with respect to the second recording medium to be conveyed, which is disposed between the second supply roller and the discharge roller. The recording is performed using only the recording element.

  In the present invention, the second recording medium is conveyed to the recording head by a second supply roller that is different from the first supply roller of the first recording medium. After recording by the recording head, the second recording medium is guided to the discharge roller common to the first recording medium by the guide means, and is discharged by the discharge roller. Here, the second supply roller for conveying the second recording medium is located in the recording range in the first direction of the recording head. For this reason, the distance between the second supply roller that transports the second recording medium and the discharge roller is smaller than the distance between the first supply roller that transports the first recording medium and the discharge roller. Therefore, even when the size of the second recording medium is small, the second recording medium can be stably conveyed. As in the first aspect, since the second supply roller is located in the recording range of the recording head, recording on the second recording medium is performed between the second supply roller and the discharge roller. Only a part of the recording elements arranged between them is used.

  Further, since the second recording medium recorded by the recording head is guided by the guide means and discharged by the same discharge roller as the first recording medium, the first recording medium and the second recording medium The discharge path of the medium after recording in the recording head can be made common.

  In the present invention, the separation distance between the second supply roller that conveys the second recording medium and the second discharge roller is greater than the separation distance between the first supply roller that conveys the first recording medium and the first discharge roller. Since the size of the second recording medium is small, the second recording medium can be stably conveyed even when the size of the second recording medium is small. Furthermore, at least one of the second supply roller and the second discharge roller is disposed within the recording range of the recording head in the first direction, thereby further reducing the distance between the second supply roller and the second discharge roller. It becomes possible. Since the roller for conveying the second recording medium is located in the recording range of the recording head, the recording on the second recording medium is located between the second supply roller and the second discharge roller. This is done using only some recording elements.

1 is a schematic plan view of an ink jet printer according to an embodiment. It is a top view of an inkjet head. (A) is the A section enlarged view of FIG. 2, (b) is the BB sectional drawing of (a). FIG. 2 is a cross-sectional view of the printer of FIG. FIG. 2 is a sectional view taken along line DD of the printer of FIG. 1 during recording on a recording sheet. FIG. 2 is a cross-sectional view of the printer of FIG. 1 taken along the line C-C during recording on a tape. FIG. 2 is a sectional view taken along line DD of the printer of FIG. 1 during recording on a tape. FIG. 5 is a cross-sectional view corresponding to FIG. 4 of a printer according to a first modification. FIG. 5 is a cross-sectional view corresponding to FIG. 4 of a printer according to a modified embodiment 2. It is a figure explaining the printer of the modification 3, (a) is a top view of an inkjet head, (b) is sectional drawing equivalent to FIG. 4 of a printer. FIG. 10 is a schematic plan view of a printer according to a fourth modification. FIG. 6 is a cross-sectional view corresponding to FIG. 4 of a printer according to a modified embodiment 5. It is sectional drawing equivalent to FIG. 4 of the printer of the modification 8. It is sectional drawing equivalent to FIG. 4 of the printer of the modification 9. It is sectional drawing equivalent to FIG. 4 of the printer of the modification 10. FIG. FIG. 14 is a schematic plan view of a printer according to a modified example 11.

  Next, an embodiment of the present invention will be described. FIG. 1 is a schematic plan view of the ink jet printer of the present embodiment. In the following, the front side in FIG. 1 is defined as the upper side, and the other side of the page is defined as the lower side, and the explanation will be made using direction words “up” and “down” as appropriate. In the following description, the up-down direction in FIG. 1 is referred to as a “first direction”, and the left-right direction in FIG. 1 orthogonal to the first direction is referred to as a “second direction”. One of the first directions (downward in FIG. 1) is a direction in which the recording paper 100 is transported, and is particularly referred to as a “transport direction”. The second direction is a direction in which the inkjet head 4 moves, and may be referred to as a “scanning direction” below.

  The ink jet printer according to the present embodiment includes a rectangular recording paper 100 (first recording medium) such as A4 paper and a strip-like tape 101 (second recording medium) having a width smaller than that of the recording paper 100. This is a printer capable of recording images, characters and the like on two types of recording media. As shown in FIG. 1, the ink jet printer 1 (recording apparatus) includes a platen 2, a carriage 3, an ink jet head 4, a first transport mechanism 5 that transports a recording paper 100, and a second transport that transports a tape 101. A mechanism 6 is provided.

  A recording sheet 100 is placed on the upper surface of the platen 2. An opening 2a is formed in a part of the platen 2 where the recording paper 100 is placed, and the tape 101 and a second transport mechanism (to be described later) for transporting the tape 101 are formed in the opening 2a. 6 (see FIGS. 4 to 7) is accommodated.

  Two guide rails 10 and 11 extending in parallel with the scanning direction (second direction) are provided above the platen 2. The carriage 3 is movable in the scanning direction along the two guide rails 10 and 11 in a region facing the platen 2. An endless belt 14 is connected to the carriage 3, and the carriage 3 reciprocates in the scanning direction when the endless belt 14 is driven by a carriage 3 drive motor 15. In FIG. 1, the scanning direction, which is the moving direction of the carriage 3, is orthogonal to the conveyance direction of the recording paper 100, but the carriage 3 moves in a direction intersecting the conveyance direction at an angle other than 90 degrees. May be.

  The inkjet head 4 is attached to the carriage 3 in a posture in which a surface (ink ejection surface) on which a plurality of nozzles 16 are formed faces the lower platen 2. The inkjet head 4 is connected to a cartridge holder 9 provided in the printer main body 1a by a tube (not shown). Four ink cartridges 17 for storing inks of four colors (black, yellow, cyan, magenta) are mounted on the cartridge holder 9.

  FIG. 2 is a plan view of the inkjet head 4. 3A is an enlarged view of a portion A in FIG. 2, and FIG. 3B is a sectional view taken along line BB in FIG. As shown in FIGS. 2 and 3, the inkjet head 4 includes a plurality of nozzles 16 and a flow path unit 20 in which a plurality of pressure chambers 24 communicating with the plurality of nozzles 16 are formed, and an upper surface of the flow path unit 20. The piezoelectric actuator 21 is provided.

  As shown in FIG. 3B, the flow path unit 20 has a structure in which four plates are stacked. A plurality of nozzles 16 are formed on the lower surface (ink ejection surface 4 a) of the flow path unit 20. As shown in FIG. 3, the plurality of nozzles 16 are arranged in the transport direction orthogonal to the scanning direction, and form four nozzle rows respectively corresponding to four color inks (black, yellow, cyan, magenta). doing.

  The flow path unit 20 has a plurality of pressure chambers 24 communicating with the plurality of nozzles 16, respectively. The plurality of pressure chambers 24 are arranged in four rows like the plurality of nozzles 16. Further, the flow path unit 20 has four manifolds 25 (common ink chambers) that extend in the transport direction and supply four color inks of black, yellow, cyan, and magenta to the four pressure chamber rows. Is formed. Note that the upstream ends of the four manifolds 25 in the transport direction are connected to four ink supply holes 26 (ink supply units) formed on the upper surface of the flow path unit 20, respectively. The four ink supply holes 26 are connected to the four ink cartridges 17 of the cartridge holder 9 shown in FIG.

  As shown in FIG. 3B, the piezoelectric actuator 21 corresponds to the vibration plate 30 covering the plurality of pressure chambers 24, the piezoelectric layer 31 disposed on the upper surface of the vibration plate 30, and the plurality of pressure chambers 24. A plurality of individual electrodes 32 are provided. The plurality of individual electrodes 32 positioned on the upper surface of the piezoelectric layer 31 are respectively connected to a driver IC 34 that drives the piezoelectric actuator 21. The diaphragm 30 located on the lower surface of the piezoelectric layer 31 is made of a metal material and serves as a common electrode facing the plurality of individual electrodes 32 with the piezoelectric layer 31 interposed therebetween. The diaphragm 30 is connected to the ground wiring of the driver IC 34 and is always held at the ground potential.

  In the piezoelectric actuator 21, when a predetermined drive voltage is applied from a driver IC 34 between a certain individual electrode 32 and a diaphragm 30 as a common electrode, piezoelectric deformation (piezoelectricity) is applied to the piezoelectric layer 31 sandwiched between the two. Distortion). The piezoelectric deformation of the piezoelectric layer 31 causes a volume change in the pressure chamber 24 to apply pressure to the ink in the pressure chamber 24. At this time, ink droplets are ejected from the nozzle 16 communicating with the pressure chamber 24.

  Next, the first transport mechanism 5 will be described. 4 is a cross-sectional view taken along the line CC of FIG. 1 during recording on a recording sheet. As shown in FIGS. 1 and 4, the first transport mechanism 5 includes a first supply roller 18 and a first discharge roller 19 arranged so as to sandwich the inkjet head 4 and the platen 2 in the first direction.

  The first supply roller 18 and the first discharge roller 19 are rotationally driven by a drive motor (not shown). The first supply roller 18 is disposed on the upstream side of the inkjet head 4 in the transport direction together with the pressing roller 40, and transports the recording paper 100 sandwiched between the pressing roller 40 toward the inkjet head 4. The first discharge roller 19 is disposed downstream of the inkjet head 4 in the transport direction together with the spur roller 41, and discharges the recording paper 100 on which an image or the like has been recorded by the inkjet head 4 in the transport direction while being pressed by the spur roller 41. .

  FIG. 5 is a cross-sectional view taken along the line DD of FIG. 1 during recording on the recording paper 100. The operation of the inkjet printer 1 when recording images, characters, and the like on the recording paper 100 is as follows. As shown in FIG. 5, the inkjet head 4 ejects ink from the plurality of nozzles 16 while moving over the entire area of the recording paper 100 placed on the platen 2 in the scanning direction. When the ink ejection operation of the inkjet head 4 is completed, the first transport mechanism 5 transports the recording paper 100 by a predetermined amount in the transport direction. An image or the like is recorded on the recording paper 100 by alternately performing the ink ejection operation of the inkjet head 4 and the transport operation by the first transport mechanism 5.

  Next, the second transport mechanism 6 will be described. FIG. 6 is a cross-sectional view taken along the line CC of FIG. FIG. 7 is a cross-sectional view taken along the line DD of FIG. 1 during recording on the tape 101. As shown in FIGS. 1, 6, and 7, an opening 2a is formed in the platen 2, and the second transport mechanism 6 is disposed in the opening 2a. As can be seen from FIG. 1, the opening 2 a is in an area of the platen 2 that is opposite to the inkjet head 4 and in which the recording paper 100 is conveyed. Therefore, the recording paper 100 recorded by the inkjet head 4 passes over the opening 2a. Further, the opening 2a is formed at a position slightly upstream of the central portion in the transport direction of the platen 2 in the region facing the inkjet head 4 in the platen 2.

  The second transport mechanism 6 includes a suction roller 46 and a second supply roller 44 and a second discharge roller 45 that are disposed so as to sandwich the suction roller 46 in the first direction. The suction roller 46 is rotatably installed in the opening 2a. The suction roller 46 sucks and holds a part of the strip-shaped tape 101 on the outer peripheral surface of the upper portion thereof. The upper part of the suction roller 46 that sucks the tape 101 faces the ink ejection surface 4 a of the inkjet head 4. Accordingly, the ink ejected from the nozzles 16 of the ink jet head 4 lands on the portion of the tape 101 adsorbed on the outer peripheral surface of the upper portion of the adsorbing roller 46. The configuration for sucking the tape 101 of the suction roller 46 is not particularly limited. For example, a configuration in which the tape 101 is sucked and sucked to the outer peripheral surface by a number of suction holes formed on the outer peripheral surface of the suction roller 46. Can be adopted.

The second supply roller 44 is installed together with the pressure roller 47 at a position upstream of the suction roller 46 in the transport direction. The second supply roller 44 conveys the tape 101 toward the suction roller 46 with the tape 101 sandwiched between the second supply roller 44 and the pressing roller 47. The second discharge roller 45 is installed together with the pressing roller 48 at a position downstream of the suction roller 46 in the transport direction. The second discharge roller 45 sandwiches the tape 101 with the pressing roller 48 and conveys the tape 101 on which an image, characters, and the like are recorded on the suction roller 46 so as to be separated from the suction roller 46. At this time, the suction roller 46 positioned between the two rollers 44 and 45 rotates counterclockwise in FIG. 6, and at the same time, the portion of the tape 101 sucked on the suction roller 46 is transported in the transport direction. The Rukoto.

  The operation of the inkjet printer 1 when recording images, characters, and the like on the tape 101 is as follows. As shown in FIG. 7, the inkjet head 4 moves in the scanning direction, and when it reaches the position of the opening 2a, it ejects ink from the nozzle 16 toward the tape 101 exposed from the opening 2a. When the ink ejection operation of the inkjet head 4 is completed, the tape 101 is transported in the transport direction by a predetermined amount by the second supply roller 44 and the second discharge roller 45 of the second transport mechanism 6. An image or the like is recorded on the tape 101 by alternately performing the ink discharge operation of the inkjet head 4 and the transport operation by the second transport mechanism 6.

  As shown in FIGS. 6 and 7, the upper end of the suction roller 46 is located below the upper end of the opening 2 a, and the tape 101 sucked by the suction roller 46 is located below the upper surface of the platen 2. doing. That is, the second transport mechanism 6 transports the tape 101 in the vertical direction at a position farther from the ink ejection surface 4 a of the inkjet head 4 than the recording paper 100. As described above, when the transport position of the tape 101 is farther than the transport position of the recording paper 100, the tape 101 can be recorded by the inkjet head 4 sucked by the suction roller 46 as shown in FIGS. The recording paper 100 can be transported above it while waiting at a certain position. That is, recording on the recording paper 100 can be performed with the tape 101 attached to the second transport mechanism 6.

  By the way, since the tape 101 has a smaller width than the recording paper 100, if the distance between the two rollers 44 and 45 that transport the tape 101 in the first direction is large, the posture during transportation becomes unstable. That is, since the tape 101 has a small width that is sandwiched and held between the second supply roller 44 and the second discharge roller 45 and the pressing rollers 47 and 48, the tape 101 has the second supply roller 44 and the second supply roller 44. The portion located between the two discharge rollers 45 is easily twisted, and in some cases, it may be separated from the suction roller 46.

  In this embodiment, first, the separation distance in the first direction between the second supply roller 44 and the second discharge roller 45 that conveys the tape 101 is such that the first supply roller 18 and the first supply roller 19 that convey the recording paper 100. This is smaller than the separation distance in the first direction. Further, as shown in FIG. 6, of the two rollers 44 and 45 of the second transport mechanism 6, the second discharge roller 45 is a range in which the plurality of nozzles 16 of the inkjet head 4 are arranged in the first direction (hereinafter referred to as “the second discharge roller 45”). In the recording range). As a result, the distance between the second supply roller 44 and the second discharge roller 45 is further reduced. Accordingly, the tape 101 that is easily twisted and has a small width can be transported with a stable posture, so that high-quality recording can be performed by the inkjet head 4.

Note that a portion of the tape 101 held by the suction roller 46 sandwiched between the second supply roller 44 and the second discharge roller 45 is a portion where an image or the like is recorded by the inkjet head 4. Therefore, as shown in FIG. 6, the fact that the second discharge roller 45 is positioned within the recording range of the inkjet head 4 in the first direction means that among the plurality of nozzles 16 constituting one nozzle row. The nozzles 16 outside the second supply roller 44 and the second discharge roller 45 (in FIG. 6, downstream in the transport direction from the second discharge roller 45) are not used for recording on the tape 101. That is, recording on the tape 101 is performed using only some of the nozzles 16 disposed between the second supply roller 44 and the second discharge roller 45.

  In the present embodiment, the opening 2a in which the tape 101 and the second transport mechanism 6 are arranged is formed on the upstream side in the transport direction in the region of the platen 2 that faces the ink discharge surface 4a of the inkjet head 4. Yes. Therefore, when recording on the tape 101, the nozzle 16 located on the upstream side in the transport direction is used among the plurality of nozzles 16 constituting one nozzle row within the recording range of the inkjet head 4.

  As shown in FIG. 2, a plurality of nozzles 16 constituting one nozzle row communicate with one manifold 25, and an end on the upstream side in the transport direction of the manifold 25 is connected to the ink supply hole 26. Here, among the plurality of nozzles 16, the nozzle 16 communicating with the portion of the manifold 25 that is away from the ink supply hole 26 has an ejection abnormality due to the following reasons compared to the nozzle 16 that communicates at a position close to the ink supply hole 26. The frequency of occurrence increases. First, air bubbles tend to stay at the tip of the manifold 25 away from the ink supply hole 26 in the first place. In addition, when air bubbles are to be discharged from each nozzle by a known purge, it is difficult to discharge air bubbles at the front end side of the manifold 25 because the ink flow rate at the time of purging is reduced due to the pressure loss up to this point. . In this regard, in the present embodiment, when recording on the tape 101, the nozzle 16 located on the connection end side of the manifold 25 with the ink supply hole 26, that is, the nozzle 16 that is less likely to cause ejection abnormality is used.

  As shown in FIG. 1, the tape 101 accommodated in the opening 2 a is conveyed in an area where the recording paper 100 in the second direction is conveyed in the area facing the inkjet head 4 of the platen 2. The Accordingly, even when recording is performed on the tape 101, the inkjet head 4 may be moved within the moving range in the scanning direction when recording on the recording paper 100. That is, even if the recording function to the tape 101 is added, the size of the inkjet printer 1 in the scanning direction does not increase.

  In the present embodiment, as shown in FIG. 2, the arrangement direction of the plurality of nozzles 16 (the direction of the nozzle row) is parallel to the conveyance direction (first direction). And may be inclined at an angle of less than 90 degrees.

  Next, modified embodiments in which various modifications are made to the embodiment will be described. However, components having the same configuration as in the above embodiment are given the same reference numerals and description thereof is omitted as appropriate.

(Modification 1)
As shown in FIG. 8, both the second supply roller 44 and the second discharge roller 45 of the second transport mechanism 6 may be positioned within the recording range of the inkjet head 4 in the first direction. In this case, at the time of recording on the tape 101, the nozzle 16 positioned between the second supply roller 44 and the second discharge roller 45 among the plurality of nozzles 16 in the recording range is used.

(Modification 2)
In the inkjet printer 1, in order to enable so-called borderless printing in which an image or the like is recorded without providing a margin at the edge of the recording paper 100, the recording paper 100 ejected toward the edge of the recording paper 100 is applied to the recording paper 100. An ink receiving portion for receiving ink that has not landed is required. In FIG. 9, the ink receiving portion 50 is provided at a position different from the opening 2 a where the second transport mechanism 6 is disposed within the recording range of the platen 2 in the first direction of the inkjet head 4. In other words, the second discharge roller 45 and the ink receiving portion 50 are arranged in the first direction within the recording range. Further, the ink receiving portion 50 accommodates an absorber 51 that absorbs ink. With the configuration as shown in FIG. 9, a printer having both a recording function on the tape 101 having a small width and a borderless printing function on the recording paper 100 having a large width is provided.

(Modification 3)
There are cases where the number of nozzles (arrangement length) differs between the four types of nozzles 16 that respectively eject four colors of ink. For example, in FIG. 10A, three types of nozzles 16y, 16c, and 16m (first recording elements) that respectively eject three color inks of yellow, cyan, and magenta cover the first range L1 in the first direction. They are arranged side by side. On the other hand, the nozzle 16k (second recording element) that discharges black ink has a larger number of nozzles (the arrangement length of the nozzles 16 is longer) than the nozzles 16y, 16c, and 16m that discharge color ink. In other words, the black ink nozzles 16k are arranged side by side over the second range L2 including the first range L1 and longer in the first direction than the first range L1.

  In the inkjet head 4 as described above, in order to perform four-color printing on the tape 101 using all of the four types of nozzles 16k, 16y, 16c, and 16m, the first range L1 is used when recording on the tape 101. It is sufficient that the nozzle 16 is used. Specifically, as shown in FIG. 10B, the second supply roller 44 and the second discharge roller 45 are arranged so as to sandwich the nozzle 16 in the first range. As a result, the tape 101 adsorbed on the upper portion of the adsorbing roller 46 is positioned in the first range L1, and the tape 101 is driven by the four types of nozzles 16k, 16y, 16c, and 16m arranged in the first range L1. 4 color printing is possible. In FIG. 10, the second supply roller 44 and the second discharge roller 45 are respectively disposed outside the first range, but one or both of the two rollers 44 and 45 are within the first range. It may be.

(Modification 4)
As shown in FIG. 11, the opening 2 a of the platen 2 is formed outside the area in which the recording paper 100 is conveyed in the scanning direction, and the tape 101 is conveyed to an area outside the conveyance area of the recording paper 100. Also good. However, in this case, when recording on the tape 101, it is necessary to move the inkjet head 4 to a region outside the scanning direction more than when recording on the recording paper 100. Therefore, the size of the printer 1 in the scanning direction may be larger than that of the configuration of FIG.

(Modification 5)
The transport position of the tape 101 transported by the second transport mechanism 6 may be the same as the transport position of the recording paper 100 in the vertical direction or closer to the inkjet head 4 than that. For example, in FIG. 12, the upper end of the suction roller 46 is flush with the upper surface of the platen 2, and the tape 101 sucked by the suction roller 46 is located above the upper surface of the platen 2. In this embodiment, when recording on the recording paper 100, it is necessary to remove the tape 101 from the second transport mechanism 6 in order to avoid interference with the recording paper 100. On the other hand, the distance from the ink-jet head 4 to the tape 101 is smaller than that of the above embodiment, and the landing deviation of the ink ejected from the nozzle 16 is reduced, which is advantageous in terms of recording quality. As shown in FIG. 11 of the modified embodiment, if the tape 101 is transported out of the range in which the recording paper 100 is transported, the recording that is transported even if the tape 101 is set in the second transport mechanism 6. Since there is no interference with the paper 100, it is not necessary to remove the tape 101 when recording on the recording paper 100.

(Modification 6)
In the embodiment, as shown in FIGS. 5 and 6, the conveyance direction of the recording paper 100 by the first conveyance mechanism 5 and the conveyance direction of the tape 101 by the second conveyance mechanism 6 in the region facing the inkjet head 4 are the same. However, the respective transport directions may be reversed. For example, when the recording paper 100 is transported downward in FIG. 1 by the first transport mechanism 5, the tape 101 may be transported upward in FIG. 1 by the second transport mechanism 6.

(Modification 7)
The second recording medium having a size smaller than that of the recording paper 100 is not limited to a continuous belt-like one like the tape 101 of the above embodiment. For example, a small-sized rectangular paper having a width and length smaller than the recording paper 100, such as a business card size paper or a sticky note paper, may be used. In particular, the length of the second recording medium in the first direction (conveyance direction) is shorter than the distance in the first direction between the first supply roller 18 and the first discharge roller 19 of the first conveyance mechanism 5. In the first case, the second recording medium cannot be transported by the first transport mechanism 5 in the first place. Therefore, it is preferable to provide a dedicated second transport mechanism 6 for transporting the second recording medium by applying the present invention, and to further reduce the distance between the two rollers of the second transport mechanism 6 as much as possible.

(Modification 8)
The second transport mechanism 6 that transports the second recording medium can be appropriately changed according to the size and shape of the second recording medium to be transported. For example, as shown in FIG. 13, the second transport mechanism 6 has a placement surface 2b parallel to the upper surface of the platen 2 instead of the suction roller 46 of the above-described embodiment, and this placement surface 2b is moved in the first direction. The second supply roller 44 and the second discharge roller 45 may be disposed so as to be sandwiched between the two.

(Modification 9)
The second recording medium recorded by the inkjet head 4 may be discharged by the first discharge roller 19 of the first transport mechanism 5. For example, as shown in FIG. 14, the upper surface of the portion of the platen 2 between the second discharge roller 45 and the first discharge roller 19 is a guide surface 2c that is inclined upward as it goes in the transport direction. The guide surface 2 c guides the tape 101 from the second discharge roller 45 to the first discharge roller 19. In FIG. 14, in order to bring the second discharge roller 45 as close as possible to the first discharge roller 19, the second discharge roller 45 is arranged on the downstream side in the transport direction from the recording range, and conversely, the second supply roller 44. Is within the recording range. In this configuration, the tape 101 recorded by the inkjet head 4 is sent from the second discharge roller 45 to the first discharge roller 19 while being guided by the guide surface 2c. That is, since the recording paper 100 and the tape 101 are discharged by the same first discharge roller 19, the recording paper 100 and the tape 101 share a discharge path.

(Modification 10)
In the modified embodiment 9 of FIG. 14 described above, the second discharge roller 45 may be further omitted. That is, as shown in FIG. 15, the tape 101 is fed from the second supply roller 44 disposed within the recording range toward the mounting surface 2 b of the platen 2 that faces the inkjet head 4. The tape 101 recorded by the inkjet head 4 is guided to the first discharge roller 19 by a guide surface 2c continuous with the placement surface 2b. A roller 49 in FIG. 15 is a pressing roller for preventing the tape 101 from floating.

(Modification 11)
In the above embodiment, the inkjet head 4 is a so-called serial type head that ejects ink onto a recording medium (recording paper 100 and tape 101) while moving in the scanning direction (second direction). The application target is not limited to this. That is, as shown in FIG. 16, the inkjet head 64 of the printer 61 may be a so-called line type head that ejects ink in a fixed state. Specifically, the inkjet head 64 has a plurality of nozzle rows that extend in parallel with each other in the second direction and are arranged in the first direction. When recording on the tape 101 which is the second recording medium, only the nozzle row located between the second supply roller 44 and the second discharge roller 45 is used among the plurality of nozzle rows.

  The embodiment of the present invention has been described with reference to an example applied to an inkjet printer including an inkjet head as a recording head. However, the present invention can also be applied to a recording apparatus other than an inkjet printer. For example, the present invention can be applied to a thermal printer having a thermal head in which a plurality of heating elements (corresponding to the recording element of the present invention) are arranged in the first direction as the recording head.

DESCRIPTION OF SYMBOLS 1 Inkjet printer 2 Platen 2c Guide surface 4 Inkjet head 5 1st conveyance mechanism 6 2nd conveyance mechanism 16 Nozzle (recording element)
18 First supply roller 19 Second discharge roller 25 Manifold 26 Ink supply hole 44 Second supply roller 45 Second discharge roller 50 Ink receiving portion 61 Printer 64 Inkjet head 100 Recording paper 101 Tape

Claims (10)

A recording head having a plurality of recording elements arranged in a predetermined first direction;
A first supply roller and a first discharge roller disposed so as to sandwich the recording head in the first direction, and the first recording medium is transferred to the recording head by the first supply roller and the first discharge roller. A first transport mechanism for transporting along the first direction,
A second supply roller and a second discharge roller that are spaced apart from each other in the first direction, and the second supply roller and the second discharge roller allow a second recording medium to be moved relative to the recording head. A second transport mechanism for transporting along the first direction,
The separation distance in the first direction between the second supply roller and the second discharge roller is smaller than the separation distance in the first direction between the first supply roller and the first discharge roller,
In the first direction, at least one of the second supply roller and the second discharge roller is located within a recording range in the first direction in which the plurality of recording elements of the recording head are disposed,
For the second recording medium conveyed by the second conveying mechanism, the recording head includes the second supply roller and the second of the plurality of recording elements arranged in the first direction. A recording apparatus that performs recording using only a part of recording elements arranged between the discharge rollers. The recording head includes a plurality of first recording elements arranged over a predetermined first range in the first direction, and the first range, and extends over a second range longer than the first range in the first direction. A plurality of second recording elements arranged,
The second supply roller and the second discharge roller are disposed so as to sandwich at least a part of the recording element in the first range in the first direction;
For the second recording medium transported by the second transport mechanism, the recording head is one of the plurality of first recording elements and the plurality of second recording elements within the first range. The recording apparatus according to claim 1, wherein recording is performed using a recording element sandwiched between the second supply roller and the second discharge roller in the first direction. The conveyance direction of the first recording medium by the first conveyance mechanism and the conveyance direction of the second recording medium by the second conveyance mechanism are the same direction.
Guiding means for guiding the second recording medium from the second discharge roller to the first discharge roller of the first transport mechanism;
The second recording medium recorded by the recording head is guided from the second discharge roller by the guide means and sent to the first discharge roller. Recording device. The recording head performs recording on the first recording medium or the second recording medium while moving in a predetermined second direction intersecting the first direction;
A width of the second recording medium in the second direction is smaller than a width of the first recording medium in the second direction;
The second transport mechanism transports the second recording medium into an area where the first recording medium is transported in an area facing the recording head moving in the second direction. The recording apparatus according to claim 1, wherein the recording apparatus is a recording apparatus.   The second transport mechanism moves the second recording medium in a direction perpendicular to the plane including the first direction at a position farther from the recording head than the first recording medium. The recording apparatus according to claim 1, wherein the recording apparatus transports along one direction. The recording head includes a plurality of nozzles that eject ink as the plurality of recording elements,
Within the recording range of the recording head in the first direction, at least one of the second supply roller and the second discharge roller of the second transport mechanism, and an edge of the first recording medium in the first direction. 6. The ink receiving portion that receives ink that has not landed among the ink ejected toward the ink is arranged side by side in the first direction. 6. Recording device. The recording head is
A plurality of nozzles as the plurality of recording elements arranged in the first direction and ejecting ink, respectively;
A common ink chamber extending in the first direction and communicating in common with the plurality of nozzles;
An ink supply unit communicating with one end of the common ink chamber in the first direction;
With
Among the plurality of nozzles arranged in the first direction, a part of the nozzles disposed between the second supply roller and the second discharge roller is located closer to the one end than the other nozzles. The recording apparatus according to claim 1, wherein the recording apparatus is a recording apparatus.   8. The length of the second recording medium in the first direction is shorter than a separation distance between the first supply roller and the first discharge roller in the first direction. A recording apparatus according to any one of the above.   9. The recording apparatus according to claim 1, wherein a width of the second recording medium in a direction orthogonal to the first direction is smaller than that of the first recording medium. . A recording head having a plurality of recording elements arranged in a predetermined first direction;
A first supply roller and a discharge roller disposed so as to sandwich the recording head in the first direction, and the first supply medium and the discharge roller allow the first recording medium to be moved with respect to the recording head. A first transport mechanism for transporting along the first direction;
A second supply roller is provided, and the second supply roller conveys the second recording medium to the recording head in the same direction as the conveyance direction of the first recording medium by the first conveyance mechanism. A second transport mechanism;
Guiding means for guiding the second recording medium recorded by the recording head to the discharge roller of the first transport mechanism;
In the first direction, the second supply roller is located within a recording range in the first direction in which the plurality of recording elements of the recording head are arranged,
For the second recording medium conveyed by the second conveyance mechanism, the recording head includes the second supply roller and the discharge roller among the plurality of recording elements arranged in the first direction. A recording apparatus for recording using only a part of the recording elements disposed between the two.

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