JP2016034879A - Target conveyance device and liquid injection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a target conveyance device and a liquid injection device capable of accurately detecting a conveyance amount of a target while suppressing the target from meandering.SOLUTION: A target conveyance device comprises: a pair of conveyance rollers including a plurality of split roller bodies 21 disposed to be apart in a width direction crossing a conveyance direction of a continuous sheet S and applying a conveyance force to the continuous sheet S with the continuous sheet S held between the split roller bodies 21; and an imaging unit 30 disposed at a position corresponding to a held part of the continuous sheet S held between the split roller bodies 21 in the width direction of the continuous sheet S in the transport direction and detecting, in a non-contact manner, a conveyance amount of the continuous sheet S conveyed by the paired conveyance rollers.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a target transport device that transports a target, and a liquid ejecting apparatus including the target transport device.

  Conventionally, as a kind of liquid ejecting apparatus, an ink jet printer that forms an image by ejecting liquid from a liquid ejecting head to a target is known. For example, in the printer described in Patent Document 1, a pair of conveyance rollers that applies a conveyance force to a sheet in a state where the sheet (target) is sandwiched is provided on a sheet conveyance path. This pair of transport rollers is composed of a transport drive roller and a transport driven roller, and the transport driven roller is composed of a plurality of divided roller bodies that are spaced apart in the width direction of the paper so that the paper fed out from the transport roller pair has a width. The meandering in the direction is suppressed.

  In recent years, a printer provided with a sensor for monitoring the amount of the target transported by the pair of transport rollers has been proposed. For example, the printer described in Patent Document 2 is provided with a photographing device that continuously photographs images of the surface of a recording sheet (target) as such a sensor. In this printer, the conveyance is carried between the conveyance driving roller and the conveyance driven roller based on the movement amount of the specific image pattern according to the undulation of the surface of the recording paper included in the image obtained from the imaging device. The conveyance amount of the recording paper to which the force is applied is detected.

JP 2005-271293 A JP 2007-217176 A

  By the way, in the printer described in Patent Document 2, in order to prevent the recording paper from meandering in the width direction, the conveyance driven roller is configured by a plurality of divided roller bodies spaced apart in the width direction of the recording paper. . In this case, when the recording paper absorbs the ink (liquid) ejected from the recording head (liquid ejecting head) and swells, the corresponding portion between the divided roller bodies adjacent in the width direction is the transport driving roller. Since it is not pinched by the transport driven roller, it deforms locally. As a result, since the distance between the imaging device and the recording paper changes, the imaging device cannot clearly capture the undulations on the surface of the recording paper and cannot accurately detect the conveyance amount of the recording paper. There was a fear.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a target transport apparatus and a liquid ejecting apparatus that can detect the target transport amount with high accuracy while suppressing the meandering of the target. There is to do.

  In order to achieve the above-mentioned object, the target transport apparatus of the present invention has a plurality of sandwiching portions spaced apart in the width direction intersecting the target transport direction, and the sandwiching unit sandwiches the target to transport force. And a conveying means for applying a non-conveying amount of the target which is arranged at a position corresponding to the sandwiched portion sandwiched by the sandwiching portion in the width direction of the target and the transport direction in the transport direction. A conveyance amount detecting means for detecting contact.

  According to the above configuration, even when the conveyance force is applied from the conveyance means to the target, even if distortion occurs in the width direction with respect to the target, the target is clamped by the clamping unit in the width direction. The sandwiched portion and the corresponding region portion in the conveying direction are hardly deformed. For this reason, the distance between the transport amount detection means whose target is the area and the target hardly changes. Accordingly, the plurality of sandwiching portions spaced apart in the width direction of the target are disposed at positions where the target portion sandwiches in the width direction and the region portion corresponding to the sandwiched portion of the target passes in the transport direction. The transport amount detection means can accurately detect the transport amount of the target.

In the target transport apparatus of the present invention, the transport amount detection unit is disposed downstream of the transport unit in the target transport direction.
According to the above configuration, the conveyance amount detection unit detects, from among the targets conveyed by the conveyance unit, a sandwiched portion that is sandwiched by the sandwiching unit in the width direction and a region portion that corresponds in the transport direction. For this reason, since the distance between the target transported by the transport unit and the transport amount detection unit hardly changes, the transport amount detection unit can accurately detect the target transport amount.

  In addition, the target transport apparatus of the present invention further includes a support member that supports the target transported by the transport unit, and the transport amount detection unit is configured to support the target from the surface side supported by the support member in the target. The transport amount of is detected.

  According to the above configuration, even if the thickness of the target supported by the support member changes, the distance between the target and the transport amount detection unit does not change. For this reason, it is possible to accurately detect the transport amount of the target without being affected by the thickness of the target.

  In the target transport apparatus of the present invention, the transport amount detection means is disposed at a position corresponding to the center portion of the sandwiched portion in the width direction of the target in the transport direction.

  According to the above configuration, even when distortion occurs in the width direction with respect to the target when a conveying force is applied from the conveying means to the target, the target is particularly clamped by the clamping unit in the width direction. It is reliably suppressed that the central portion of the sandwiched portion and the corresponding region portion in the transport direction are deformed. For this reason, it is possible to more reliably suppress a change in the distance between the transport amount detection means that detects the area portion and the target, so that the transport amount detection means can detect the transport amount of the target more accurately. it can.

The liquid ejecting apparatus of the present invention includes a liquid ejecting head that ejects liquid onto a target and the target transport apparatus having the above-described configuration.
According to the said structure, the effect similar to invention of the said target conveying apparatus is acquired.

  In the liquid ejecting apparatus according to the aspect of the invention, the liquid ejecting head is provided on the downstream side of the transport unit in the transport direction of the target, and ejects liquid to the target sandwiched by the transport unit.

  According to the above configuration, even if the target absorbs the liquid ejected from the liquid ejecting head and expands, the target corresponds to the sandwiched portion sandwiched by the sandwiching portion in the width direction in the transport direction. The area portion hardly deforms. For this reason, since the distance between the transport amount detection means whose target is the area and the target hardly changes, the transport amount detection means can accurately detect the transport amount of the target.

The liquid ejecting apparatus according to the aspect of the invention further includes a heating unit that heats and fixes the liquid ejected from the liquid ejecting head to the target.
According to the above configuration, even when the target is heated by the heating means and stretched, the target is deformed in the sandwiched portion sandwiched by the sandwiching portion in the width direction and the corresponding region portion in the transport direction. rare. For this reason, since the distance between the transport amount detection means whose target is the area and the target hardly changes, the transport amount detection means can accurately detect the transport amount of the target.

1 is a schematic diagram of a printer according to an embodiment of the present invention. The top view of a recording part. Sectional drawing of an imaging unit. 4A and 4B are diagrams illustrating a recording unit in a state where a bent portion is formed on continuous paper, where FIG. 5A is a plan view, and FIG. 5B is a front view as viewed from the downstream side in the conveyance direction of continuous paper.

Hereinafter, an embodiment in which the present invention is embodied in an ink jet printer which is a kind of liquid ejecting apparatus will be described with reference to FIGS.
As shown in FIG. 1, the printer 11 includes a feeding unit 13 that feeds the continuous paper S as a long target, and a recording unit that performs a recording process by ejecting ink (liquid) onto the fed continuous paper S. 14 and a winding unit 15 that winds the continuous paper S on which recording processing has been performed by the recording unit 14.

  That is, the feeding unit 13 is disposed at a position closer to the rear side on the upstream side in the transport direction of the continuous paper S, and the winding unit 15 is disposed at a position closer to the front side on the downstream side. A recording unit 14 is disposed in the middle of the conveyance path between the feeding unit 13 and the winding unit 15.

  A winding shaft 16 extending in the left-right direction (a direction orthogonal to the paper surface) is rotatably provided in the feeding portion 13. The winding shaft 16 is supported so that the continuous paper S can be integrally rotated with the winding shaft 16 in a state where the continuous paper S is previously wound in a roll shape. That is, the continuous paper S is fed out of the winding shaft 16 by the rotation of the winding shaft 16 and is conveyed downstream in the conveying direction.

  In addition, a first relay roller 17 that winds the continuous paper S fed from the winding shaft 16 and guides it to the recording unit 14 is provided in an obliquely upper front direction of the winding shaft 16 so as to be rotatable in the left-right direction. Yes. Then, the continuous paper S fed from the winding shaft 16 is wound around the first relay roller 17 from the lower rear side, whereby the conveyance direction of the continuous paper S is converted into the horizontal direction.

  In addition, a transport roller pair 18 as a transport unit is provided at a position in front of the first relay roller 17 that is downstream of the first relay roller 17 in the transport direction of the continuous paper S. The conveyance roller pair 18 includes a driving roller 19 and a driven roller 20. As shown in FIG. 2, the drive roller 19 extends over the entire width direction of the continuous paper S. On the other hand, the driven roller 20 extends in the left-right direction, which is the width direction of the continuous paper S, in parallel with the driving roller 19, and serves as a plurality of (five in the present embodiment) sandwiching portions arranged in the same direction. A divided roller body 21 is used. In addition, these division | segmentation roller bodies 21 are arrange | positioned at equal intervals in the left-right direction used as the width direction of the continuous paper S. FIG. Then, in a state where the continuous paper S is held between the drive roller 19 and the divided roller body 21, the divided roller body 21 is driven to rotate along with the drive rotation of the drive roller 19 so that the recording unit is printed on the continuous paper S. 14 is applied.

  As shown in FIG. 1, the recording unit 14 is provided with a support base 22 as a support member capable of supporting the continuous paper S. The support base 22 includes a main body portion 23 having a substantially box shape with a bottom opened on the upper side, and a support plate 24 having a rectangular plate shape that closes the upper opening on the main body portion 23. A large number of suction holes 25 penetrating in the vertical direction, which is the thickness direction of the support plate 24, are formed in the support plate 24. In addition, an opening 26 is provided at the center of the lower surface of the main body 23, and a suction fan 27 is provided so as to close the opening 26. In addition, a heater 28 is provided inside the main body 23 as a heating unit having a rectangular plate shape corresponding to the support plate 24 in plan view. The heater 28 is in contact with the support plate 24 from the back side (lower side) of the support surface 24a. The heater 28 generates heat when a current is supplied from a power source (not shown), and heats the entire support surface 24a of the support plate 24 substantially uniformly. Therefore, the heat from the heater 28 is transmitted to the continuous paper S through the support plate 24.

  Further, a through hole 29 that penetrates the heater 28 in the vertical direction is formed at a position corresponding to the suction hole 25 of the support plate 24 in the heater 28. When the suction fan 27 is driven, the inside of the main body portion 23 is sucked through the opening 26 and negative pressure is generated in the through hole 29 and the suction hole 25, and the support plate 24 is supported by the generation of the negative pressure. The continuous paper S is adsorbed on the surface 24a. An imaging unit 30 is embedded in the support surface 24a of the support plate 24 as a conveyance amount detection unit for detecting the conveyance amount of the continuous paper S in a non-contact manner. That is, the imaging unit 30 is disposed on the downstream side in the transport direction of the continuous paper S from the transport roller pair 18.

  Further, a line head type recording head 31 as a liquid ejecting head is provided at a position facing the support base 22 in the recording unit 14. The lower surface of the recording head 31 is a nozzle forming surface in which a plurality of nozzles (not shown) that eject ink are opened. The recording head 31 extends in a direction perpendicular to the conveyance direction of the continuous paper S in the horizontal direction, and has a length in the longitudinal direction corresponding to the maximum paper width of the continuous paper S. The recording head 31 performs the recording process by ejecting ink onto the continuous paper S that is nipped and conveyed by the conveyance roller pair 18.

  Further, on the front side of the support base 22, a second relay roller 32 facing the first relay roller 17 in the front-rear direction with the support base 22 interposed therebetween is provided so as to extend in parallel with the first relay roller 17. The top of each peripheral surface of the first relay roller 17 and the second relay roller 32 is located at the same height as the support surface 24 a of the support plate 24. Therefore, the continuous paper S is conveyed to the front side which is the downstream side while being in sliding contact with the support surface 24 a of the support plate 24. Then, the continuous paper S is wound around the second relay roller 32 from the upper front side, so that the transport direction of the continuous paper S is changed from the horizontal direction to the front obliquely lower side and transported to the winding unit 15.

  In the winding unit 15, a winding shaft 33 is provided at an obliquely lower front side of the second relay roller 32 so as to be rotationally driven. Then, with the rotational drive of the take-up shaft 33, the leading end that is the downstream end in the transport direction of the continuous paper S is taken up by the take-up shaft 33.

Next, the imaging unit 30 will be described.
As shown in FIG. 3, the case 40 constituting the exterior of the imaging unit 30 has a translucent glass 41 attached to a tip portion (upper end portion) having a truncated cone shape. The imaging unit 30 is assembled to the support base 22 in a state where the translucent glass 41 is fitted in a hole 24 b formed in the support surface 24 a of the support plate 24. In addition, since the upper surface of the translucent glass 41 is located below the support surface 24a of the support plate 24, the translucent glass 41 contacts the continuous paper S positioned on the support surface 24a of the support plate 24. Not.

  In the case 40, a light emitting unit 42 made of, for example, a light emitting diode (LED) is provided. The light emitting unit 42 is fixed to the inner wall surface of the case 40 in an angular posture capable of emitting light toward the translucent glass 41. Further, in the case 40, the light emitted from the light emitting unit 42 and transmitted through the translucent glass 41 is reflected by the back surface of the continuous paper S, then passes through the translucent glass 41 again and enters the case 40. The condensing lens 43 which condenses is provided. Further, an imaging element 44 having an imaging surface 44 a on which an image of the back surface of the continuous paper S collected by the condenser lens 43 is formed is provided in the case 40. The image sensor 44 is configured by, for example, a two-dimensional image sensor. The condenser lens 43 is held via a holding member 45 at a height at which an image of the back surface of the continuous paper S can be formed on the imaging surface 44 a of the imaging device 44. Then, the imaging unit 30 captures the texture (paper pattern) of the continuous paper S from the side of the continuous paper S that is supported by the support plate 24, and compares the two images before and after being captured at regular time intervals. Thus, the transport amount per unit time of the continuous paper S is calculated.

  As shown in FIG. 2, the translucent glass 41 is provided at the center position in the width direction of the continuous paper S on the support surface 24 a of the support plate 24. And the translucent glass 41 is arrange | positioned in the position corresponding in the conveyance direction of the continuous paper S with respect to the division roller body 21 located in the center among the division roller bodies 21 which comprise the driven roller 20. FIG. More specifically, the translucent glass 41 is disposed at a position corresponding to the central portion in the axial direction of the divided roller body 21 in the transport direction of the continuous paper S. That is, the translucent glass 41 is disposed at a position corresponding to the central portion of the sandwiched portion sandwiched by the divided roller body 21 in the width direction of the continuous paper S and the transport direction thereof.

Next, the operation of the printer 11 configured as described above will be described by focusing on the operation when the imaging unit 30 detects the transport amount of the continuous paper S.
Now, when ink is ejected from the recording head 31 to the continuous paper S placed on the support surface 24a of the support plate 24, the continuous paper S absorbs the ink and swells to cause elongation. Further, the continuous paper S placed on the support surface 24a of the support plate 24 is stretched by heat applied from the heater 28 in order to heat and fix the ink ejected from the recording head 31. In this case, since the continuous paper S is adsorbed on the support surface 24a of the support plate 24 by the suction fan 27, it is difficult for the continuous paper S to spread on both sides in the width direction. Therefore, the continuous paper S tends to be deformed in the direction of lifting from the support surface 24 a of the support plate 24.

  Here, the continuous paper S has a support surface of the support plate 24 as the continuous paper S grows with respect to a portion sandwiched between the driving roller 19 and the driven roller 20 in the width direction and a portion corresponding in the transport direction. Deformation in the direction of rising from 24a is restricted. On the other hand, the continuous paper S has a portion that is not sandwiched between the driving roller 19 and the driven roller 20 in the width direction and a portion that corresponds in the transport direction, and the support surface 24a of the support plate 24 as the continuous paper S extends. It is allowed to be deformed in the direction of lifting from. As a result, as shown in FIGS. 4A and 4B, the continuous paper S has a portion corresponding to the space between the divided roller bodies 21 adjacent in the width direction from the support surface 24 a of the support plate 24. In order to bend and deform in the floating direction, a bent portion 50 extending in the conveyance direction of the continuous paper S is formed in the same portion.

  In this regard, in the present embodiment, in the imaging unit 30, the translucent glass 41 through which light incident on the continuous paper S is transmitted corresponds to the central portion of the divided roller body 21 in the transport direction of the continuous paper S. In the position. Therefore, the detection part of the continuous paper S by the imaging unit 30 is hardly deformed in the direction away from the translucent glass 41 as the continuous paper S extends. As a result, the imaging unit 30 maintains the distance between the continuous paper S and the imaging surface 44a of the imaging element 44 in the optical axis direction of the reflected light reflected from the continuous paper S even if the continuous paper S is stretched. The Accordingly, since the texture image of the continuous paper S is clearly formed on the imaging surface 44a of the imaging device 44, the continuous paper is based on the amount of movement of the texture of the continuous paper S obtained from the imaging result of the imaging device 44. The transport amount of S is accurately detected.

According to the above embodiment, the following effects can be obtained.
(1) Even when the conveyance force is applied to the continuous paper S from the pair of conveyance rollers 18, even if distortion occurs in the width direction with respect to the continuous paper S, the continuous paper S is conveyed in the width direction. The sandwiched portion sandwiched by the pair 18 and the corresponding region portion in the transport direction are hardly deformed. For this reason, the distance between the image pickup unit 30 whose detection target is the area and the continuous paper S hardly changes. Therefore, the conveyance roller pair 18 is configured such that the continuous paper S is prevented from meandering in the width direction by the plurality of divided roller bodies 21 spaced apart in the width direction of the continuous paper S, and the sandwiched portion of the continuous paper S The conveyance amount of the continuous paper S can be detected with high accuracy by the imaging unit 30 arranged in a corresponding region portion in the conveyance direction.

  (2) The imaging unit 30 detects the transport amount of the continuous paper S from the side of the continuous paper S that is supported by the support plate 24. Therefore, even if the thickness of the continuous paper S supported by the support plate 24 changes, the distance between the continuous paper S and the imaging unit 30 does not change. Therefore, the imaging unit 30 can accurately detect the transport amount of the continuous paper S without being affected by the thickness of the continuous paper S.

  (3) Even when distortion occurs in the width direction with respect to the continuous paper S when the conveyance force is applied to the continuous paper S from the pair of conveyance rollers 18, the continuous paper S is particularly in the width direction. Deformation of the central portion of the divided roller body 21 and the corresponding region portion in the transport direction is reliably suppressed. Therefore, the imaging unit 30 detects the transport amount of the continuous paper S with higher accuracy by more reliably suppressing a change in the distance between the imaging unit 30 whose detection target is the area portion and the continuous paper S. be able to.

  (4) Even if the continuous paper S absorbs the ink ejected from the recording head 31 and expands, the continuous paper S is sandwiched by the conveyance roller pair 18 in the width direction and the conveyance direction. The corresponding region portion hardly deforms. For this reason, the distance between the imaging unit 30 whose detection target is the area and the continuous paper S hardly changes, so that the imaging unit 30 can accurately detect the transport amount of the continuous paper S.

  (5) Even if the continuous paper S is heated by the heater 28 and is stretched, the continuous paper S is deformed in the sandwiched portion sandwiched by the transport roller pair 18 in the width direction and the corresponding region portion in the transport direction. There is little to do. For this reason, the distance between the imaging unit 30 whose detection target is the area and the continuous paper S hardly changes, so that the imaging unit 30 can accurately detect the transport amount of the continuous paper S.

  (6) The translucent glass 41 is arranged in a sandwiched portion sandwiched by the transport roller pair 18 in the width direction of the continuous paper S and a corresponding region portion in the transport direction. For this reason, the portion of the continuous paper S positioned above the translucent glass 41 hardly deforms in the direction of lifting from the support surface 24a of the support plate 24 even if the continuous paper S is stretched. That is, the upper surface of the translucent glass 41 is kept covered from the upper side by the continuous paper S even if the continuous paper S is stretched. As a result, when a part of the ink ejected from the recording head 31 stays as the ink mist above the support surface 24a of the support plate 24, it is possible to suppress the ink mist from adhering to the translucent glass 41.

In addition, you may change the said embodiment into another embodiment as follows.
In the above embodiment, a heater for heating and fixing the ink ejected onto the continuous paper S may be provided on the downstream side of the support base 22 in the transport direction of the continuous paper S. In addition, a heater that heats and fixes the ink ejected onto the continuous paper S may be omitted.

  In the above embodiment, the continuous paper S is detected by the imaging unit 30 as long as it is a part corresponding to the sandwiched portion sandwiched by the divided roller body 21 in the width direction of the continuous paper S and the transport direction. It is good also as a site | part corresponding in the conveyance direction and the part which remove | deviated from the center part of the division | segmentation roller body 21 in the width direction of S.

  In the above embodiment, the imaging unit 30 may be provided at a position on the upstream side or the downstream side of the support base 22 on the transport path of the continuous paper S. Further, the imaging unit 30 may detect the transport amount of the continuous paper S from the side of the continuous paper S opposite to the surface supported by the support base 22.

In the above embodiment, the imaging unit 30 may be disposed on the upstream side of the transport roller pair 18 on the transport path of the continuous paper S.
In the above-described embodiment, the conveyance amount detection unit that detects the conveyance amount of the continuous paper S in a non-contact manner is not limited to an optical sensor. You may employ | adopt the sonic sensor which detects the conveyance amount (conveyance speed) of the continuous paper S based on the frequency change of the reflected sound wave.

  In the above-described embodiment, the conveying unit that sandwiches the continuous paper S and applies a conveying force is not limited to a pair of rollers, and includes, for example, an endless conveying belt that moves around in a state where the continuous paper S is supported, You may comprise by the driven roller which carries out a driven rotation in the state which pinched | interposed the continuous paper S between this conveyance belt.

-In the said embodiment, a target is not limited to the elongate target wound by roll shape, You may employ | adopt a single-cut target.
-In the said embodiment, the material of a target is not limited to paper, You may employ | adopt cloth, a resin film, a resin sheet, a metal sheet, etc.

In the above embodiment, a serial or lateral printer may be adopted as the printer 11.
In the above embodiment, the liquid ejecting apparatus is embodied in the ink jet printer 11, but may be embodied in a liquid ejecting apparatus that ejects or discharges liquid other than ink. The present invention can be used for various liquid ejecting apparatuses including a liquid ejecting head that ejects a minute amount of liquid droplets. In addition, a droplet means the state of the liquid discharged from the said liquid ejecting apparatus, and shall also include what pulls a tail in granular shape, tear shape, and thread shape. The liquid here may be any material that can be ejected by the liquid ejecting apparatus. For example, it may be in a state in which the substance is in a liquid phase, such as a liquid with high or low viscosity, sol, gel water, other inorganic solvents, organic solvents, solutions, liquid resins, liquid metals (metal melts ) And liquids as one state of the substance, as well as particles in which functional material particles made of solid materials such as pigments and metal particles are dissolved, dispersed or mixed in a solvent. Further, representative examples of the liquid include ink and liquid crystal as described in the above embodiment. Here, the ink includes general water-based inks and oil-based inks, and various liquid compositions such as gel inks and hot melt inks. As a specific example of the liquid ejecting apparatus, for example, a liquid containing a material such as an electrode material or a color material used for manufacturing a liquid crystal display, an EL (electroluminescence) display, a surface emitting display, or a color filter in a dispersed or dissolved form. It may be a liquid ejecting apparatus for ejecting, a liquid ejecting apparatus for ejecting a bio-organic matter used for biochip manufacturing, a liquid ejecting apparatus for ejecting a liquid used as a precision pipette, a printing apparatus, a microdispenser, or the like. In addition, transparent resin liquids such as UV curable resin to form liquid injection devices that pinpoint lubricant oil onto precision machines such as watches and cameras, and micro hemispherical lenses (optical lenses) used in optical communication elements. A liquid ejecting apparatus that ejects a liquid onto the substrate or a liquid ejecting apparatus that ejects an etching solution such as an acid or an alkali to etch the substrate may be employed. The present invention can be applied to any one of these liquid ejecting apparatuses.

  In the above-described embodiment, the target transport apparatus is not limited to that provided in the recording apparatus that performs the recording process on the target, but may be a target transport apparatus provided in various processing apparatuses that perform arbitrary processing on the target. Good.

  DESCRIPTION OF SYMBOLS 11 ... Printer as a liquid ejecting device, 18 ... Conveying roller pair as a conveying means, 21 ... Split roller body as a clamping part, 22 ... Support base as a supporting member, 28 ... Heater as a heating means, 30 ... Conveyance amount An imaging unit as a detection means, 31... A recording head as a liquid ejecting head, S... Continuous paper as a target.

Claims (7)

A plurality of sandwiching portions spaced apart in the width direction intersecting the transport direction of the target, the transporting unit that sandwiches the target and applies a transport force;
A transport amount detection that detects the transport amount of the target transported by the transport means in a non-contact manner and is disposed at a position corresponding to the sandwiched portion sandwiched by the sandwiching portion in the width direction of the target and the transport direction. And a target transporting device. In the target conveyance apparatus of Claim 1,
The target transport apparatus according to claim 1, wherein the transport amount detection unit is disposed downstream of the transport unit in the target transport direction. In the target conveyance apparatus of Claim 1 or Claim 2,
A support member for supporting the target transported by the transport means;
The target transport apparatus detects the transport amount of the target from the side of the target supported by the support member. In the target conveyance apparatus as described in any one of Claims 1-3,
The target transport apparatus according to claim 1, wherein the transport amount detection unit is disposed at a position corresponding to a center portion of the sandwiched portion in the width direction of the target and a transport direction thereof. A liquid ejecting head that ejects liquid onto a target;
A liquid ejecting apparatus comprising: the target conveying device according to claim 1. The liquid ejecting apparatus according to claim 5,
The liquid ejecting head is provided on the downstream side of the transport unit in the transport direction of the target, and ejects liquid onto the target sandwiched by the transport unit. The liquid ejecting apparatus according to claim 6,
A liquid ejecting apparatus, further comprising a heating unit configured to heat and fix the liquid ejected from the liquid ejecting head to the target.