JP5736926B2 - Printing device - Google Patents

Description

  The present invention relates to a printing apparatus.

  Conventionally, an ink jet printing apparatus is known as a printing apparatus capable of printing on various recording media represented by plain paper. An ink jet printing apparatus ejects ink to a recording medium from a nozzle provided on the surface of the recording head facing the recording medium, and lands on the recording medium to penetrate or fix on the recording medium. An apparatus for forming an image or the like.

In such a printing apparatus, there has been proposed a heating apparatus provided on a platen or the like that supports continuous paper in order to improve the formation system of printed matter and the printing speed.
In order to maintain this platen temperature (heating temperature), a metal plate having a sufficient heat capacity is adopted as the platen. For example, when a metal plate having a thickness of about 25 mm is used, it takes time until the temperature is raised to the set temperature, but the temperature drop is slow. Therefore, once the temperature reaches the set temperature, the temperature can be easily maintained.

JP 2008-288427 A

  However, when roll paper is used as the recording medium, the roll paper is stopped until the maintenance process executed after the printing process is completed, so that the roll paper remains on the heated platen. Become. When exposed to heat for a long time, the roll paper may be wrinkled. For this reason, although it is desired to lower the platen temperature at the same time as the printing process is completed, since a thick metal plate having a large heat capacity is employed, it takes time until it is naturally cooled.

  SUMMARY An advantage of some aspects of the invention is that it provides a printing apparatus capable of effectively reducing the temperature of a medium support portion.

The printing apparatus according to the present invention includes a medium support portion formed with a plurality of suction holes penetrating from the medium support surface supporting the continuous paper to the back surface, and communication holes communicating the plurality of suction holes with each other. A print processing unit that performs a printing process on the continuous paper; a pressure chamber that is provided on the back surface side and communicates with the plurality of suction holes; and the medium through the plurality of suction holes during the execution of the printing process. A suction mechanism that applies suction force to the continuous paper disposed on a support surface, a heating device that heats the medium support unit during execution of the printing process, and a control device that controls the suction mechanism; The communication hole opens in an area other than the area on the medium support unit where the continuous paper is placed, and the control device has a higher output during the printing process than in the printing process. Driving the suction mechanism with output And features.

  According to this, since the communication holes for communicating the plurality of suction holes with the outside are formed in the medium support portion, if the suction mechanism is driven at a time other than printing processing (during maintenance processing, etc.), the communication holes The outside air (cold air) can be introduced into each suction hole via the. Thereby, the medium support part heated with the heating apparatus at the time of a printing process can be forcedly cooled. Therefore, it is possible to prevent the continuous paper stopped on the medium support unit from being exposed to heat for a long time at a time other than the printing process, thereby causing wrinkles. Further, with this configuration, since it is possible to cool from the inside of the medium support portion, a film heater can be provided on the back side of the medium support portion as a heating device. Since the temperature responsiveness of the medium support portion can be improved by such a heating and cooling method, for example, it is possible to quickly shift from a printing process to a maintenance process.

The communication hole may be configured to allow the plurality of suction holes to communicate with each other and to open to a region other than the region on the medium support unit where the continuous paper is placed.
According to this, even when the continuous paper is placed on the medium support part, it is possible to introduce the outside air (cold air) into the plurality of suction holes formed in the medium support part.

Moreover, it is good also as a structure provided with the obstruction | occlusion part which obstruct | occludes opening of the said communicating hole.
According to this, by closing the opening of the communication hole by the closing portion, it is possible to effectively apply an adsorbing force to the continuous paper placed on the medium support portion through the suction hole.

Moreover, it is good also as a structure by which the cooling pipe which flows a refrigerant | coolant is laid in areas other than the area | region in which the said several suction hole was formed in the said back surface.
According to this, since it can cool directly from the back surface side of a medium support part with the refrigerant | coolant which flows through the inside of a cooling pipe, cooling efficiency improves and it can cool in a short time.

Moreover, it is good also as a structure provided with the circulation mechanism connected to the said cooling pipe and supplying the said refrigerant | coolant with respect to the said cooling pipe at a fixed temperature.
According to this, the medium support part can be cooled to a desired temperature by cooling the coolant that has been warmed by cooling the medium support part by the circulation mechanism and supplying the refrigerant again to the medium support part side. .

  The printing apparatus according to the present invention includes a medium support unit having a plurality of suction holes penetrating from the medium support surface supporting the continuous paper to the back surface, a print processing unit that performs a print process on the continuous paper, and the back surface A pressure chamber that is provided on a side and communicates with the plurality of suction holes; and during the execution of the printing process, the suction force is exerted on the continuous paper disposed on the medium support surface through the plurality of suction holes. A suction mechanism for applying, a heating device for heating the medium support portion during the execution of the printing process, and a control device for driving the suction mechanism, and the medium chamber is disposed on the top surface in the pressure chamber. An opening for communicating the internal space and the outside is formed.

  According to this, since the outside air is introduced into the internal space through the opening formed in the pressure chamber by driving the suction mechanism, the medium support portion heated by the heating device can be cooled from the back side. . Therefore, it is possible to prevent the continuous paper stopped on the medium support portion at a time other than the printing process from being wrinkled by being exposed to heat for a long time. Further, with this configuration, it is possible to form a larger opening than to form a hole for introducing outside air in the medium support portion, and therefore it is possible to suck a large amount of outside air. In addition, it is easier to form the opening in the pressure chamber than to form the communication hole in the medium support portion.

  In addition, the pressure chamber includes a partition portion that divides the internal space into at least a first chamber and a second chamber and has a communication hole that partially communicates the first chamber and the second chamber, The opening may be formed so that the first chamber having the medium support portion as a top surface communicates with the outside.

  According to this, the 1st chamber which makes the said medium support part the top surface can be formed in the back surface side of a medium support part. By separating the internal space into two spaces, it is possible to allow the outside air sucked through the opening to flow only in the first chamber without diffusing in the pressure chamber. That is, the outside air (cold air) introduced into the first chamber flows along the back surface of the medium support portion, and the entire back surface of the medium support portion can be efficiently exposed to the cold air. For this reason, it becomes possible to cool a medium support part in a shorter time.

1 is a side view showing a schematic configuration of an ink jet printer according to an embodiment. FIG. 2 is a top view illustrating a schematic configuration of an inkjet printer. It is a figure which shows schematic structure of a medium support table, Comprising: Sectional drawing which follows the AA line of FIG. (A) is a figure which shows the obstruction | occlusion state of the communicating hole by an obstruction | occlusion part, (b) is a figure which shows the open state of a communicating hole. The top view which shows schematic structure of the medium support table of 2nd Embodiment. Sectional drawing which follows the BB line of FIG. Sectional drawing which shows schematic structure of the medium support table of 3rd Embodiment. Sectional drawing which shows schematic structure of the medium support table of 4th Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. In each drawing used for the following description, the scale of each member is appropriately changed to make each member a recognizable size.

[First Embodiment]
FIG. 1 is a side view illustrating a schematic configuration of the ink jet printer according to the present embodiment. FIG. 2 is a top view illustrating a schematic configuration of the ink jet printer.
As shown in FIG. 1, the ink jet printer (printing apparatus) 1 includes a feeding unit (medium transport unit) 10, a recording unit (print processing unit) 20, and a discharge unit 40.
The feeding unit 10 is provided so that roll paper (continuous paper) R, which is an example of continuous paper, can be fed to the recording unit 20. Specifically, the roll medium holder 11 is provided, and the roll medium holder 11 holds the roll-shaped roll paper R. Then, by rotating the roll-shaped roll paper R, the roll paper R in a state where the roll state is released to the recording unit 20 on the downstream side in the conveyance direction (arrow direction of the Y axis) via the first roller 12. It is comprised so that it can feed.

The recording unit 20 is provided so as to perform recording by ejecting ink, which is an example of a liquid, to the roll paper R sent from the feeding unit 10.
Specifically, the recording unit 20 includes a carriage 21, a recording head 22, a medium support table 24, a curl pressing unit 30, and the like.

The carriage 21 faces the medium support table 24 and is provided so as to be moved in the transport direction Y of the roll paper R by the power of a carriage motor (not shown) while being guided by a second guide shaft (not shown). ing.
FIG. 1 shows a state in which the carriage 21 is retracted from the medium support table 24 to the upstream side in the transport direction.

The recording head 22 is provided on the carriage 21 so as to be able to move integrally with the carriage 21 in the transport direction Y.
Further, the recording head 22 is configured to be able to move relative to the carriage 21 in the width direction X. Specifically, it is provided so that it can be moved in the width direction X by the power of a recording head motor (not shown) while being guided by a second guide shaft (not shown).

That is, the recording head 22 is configured to be able to move in the Y direction (sub-scanning direction) that is the transport direction and the X direction (main scanning direction) that is the width direction within a range facing the medium support table 24. ing.
Then, it is possible to perform recording on the roll paper R by ejecting ink from the nozzle row 23 provided on the surface of the recording head 22 facing the medium support table 24.

  The medium support table (medium adsorption support device) 24 is provided so that the roll paper R can be supported from the back side. The medium support table 24 includes a platen (medium support unit) 25 having a medium support surface PL that supports the roll paper R, a platen heater (heating device) 51 disposed on the back side of the platen 25, and the back surface of the platen heater 51. The pressure chamber 27 is arranged on the side of 51 b and a suction mechanism (suction device) 28 connected to the pressure chamber 27.

  As shown in FIGS. 1 and 2, the platen 25 of the present embodiment is made of an aluminum plate having a thickness of 25 mm, and has an inner diameter of, for example, about several mm over substantially the entire medium support surface PL that supports the roll paper R. A plurality of suction holes 26 made of through holes are formed. Specifically, the suction holes 26 having an inner diameter of 2 to 3 mm are arranged in the Y direction (the conveyance direction of the roll paper R) that is the longitudinal direction of the platen 25 and the X direction (the width direction of the roll paper R) that is the width direction. A plurality of arrays are formed.

The plurality of suction holes 26 that form a line in the short direction (X direction) of the platen 25 are in communication with each other through communication holes 36 that extend in the same direction. The communication hole 36 is formed at a central portion in the thickness direction of the platen 25, and is formed at a predetermined interval in the longitudinal direction (Y direction) of the platen 25. Specifically, the communication hole 36 is a horizontal plane (XY plane). Inner) are formed according to the pitch in the Y direction of the suction holes 26 formed in large numbers.
Here, a communication hole extending in the X direction may be provided, and the plurality of communication holes 36 arranged in the Y direction may be further communicated with each other. The configuration of the communication hole 36 is not limited to the above.

  A platen heater 51 for heating the roll paper R on the medium support surface PL of the platen 25 is provided on the back surface 25 c of the platen 25, and the suction hole 26 is formed through the thickness direction of the platen heater 51. ing. The platen heater 51 is for heating the roll paper R and promoting the drying of the ink landed on the surface thereof as the printing process is executed. Specifically, the platen heater 51 has a nichrome wire (not shown) as an example. When energized, the nichrome wire itself generates heat, and heat can be conducted to the roll paper R on the medium support surface PL of the platen 25 made of an aluminum plate. The platen heater 51 is controlled by the control device CONT.

  The suction mechanism 28 sucks air inside the pressure chamber 27 through the suction hole 26 and makes the inside space K of the pressure chamber 27 have a negative pressure. Specifically, the air inside the pressure chamber 27 is sucked by the axial fan 29. Thereby, outside air is sucked through the numerous suction holes 26 formed in the platen 25, and the roll paper R placed on the platen 25 is sucked and held on the medium support surface PL. The driving of the suction mechanism 28 is controlled by the control device CONT, and the output is changed between the printing process and the platen cooling process.

The curl pressing unit 30 presses the side end Ra of the roll paper R placed on the platen 25 toward the medium support surface PL, whereby the side end Ra of the roll paper R is curled and separated from the platen 25. In other words, so-called lifting is prevented.
Specifically, the curl pressing portion 30 includes a curl pressing member 31 made of a pair of band-like films having flexibility and flexibility. Each curl pressing member 31 is disposed over the entire area in the Y direction along the Y direction (the conveyance direction of the roll paper R) on both ends in the X direction of the platen 25 (both ends in the width direction of the roll paper R). .
The curl pressing member 31 has, for example, a thickness of 0.5 mm or less and a width of about 30 mm. Moreover, as a raw material, a polyimide etc. can be used, for example.

  Both ends (ends in the Y direction) of each curl pressing member 31 are connected to a curl pressing mounting portion 35, respectively. Each of the curl pressing attachment portions 35 is a member having substantially the same length as the width direction (X direction) of the platen 25 and is spaced apart from the end portion in the longitudinal direction (Y direction) of the platen 25 in the width direction. Are fixed to a base portion (not shown) of the ink jet printer 1 along the line.

  Further, the curl pressing attachment portion 35 connects both ends of the curl pressing member 31 so as to be movable along the X direction. Thereby, each curl pressing member 31 is moved along the guide shaft 35a of the curl pressing mounting portion 35 at both ends thereof, so that the longitudinal direction of the platen 25 (in the X direction) of the platen 25 ( (Parallel to the Y direction). Therefore, both ends in the width direction (X direction) of the roll paper R placed on the upper surface of the platen 25 can be pressed over the entire length direction (Y direction).

The discharge unit 40 includes a take-up roller 41, and is configured to take up the roll paper R sent from the recording unit 20 via the second roller 13 around the take-up roller 41.
The discharge unit 40 may include a tensioner that removes the bending of the roll paper R when the roll paper R sent from the recording unit 20 is taken up by the take-up roller 41.

FIG. 3 is a diagram illustrating a schematic configuration of the medium support table, and is a cross-sectional view taken along line AA in FIG. 2. FIG. 4A is a diagram illustrating a closed state of the communication hole by the closed portion, and FIG. 4B is a diagram illustrating an open state of the communication hole.
As shown in FIG. 3, the openings 36 a and 36 a of the communication holes 36 that open to both side surfaces 25 b and 25 b of the platen 25 can be closed by the closed portions 38 and 38, respectively, and the openings 36 a and 36 a are closed. As a result, the outside air can be sucked through the plurality of suction holes 26 (FIG. 4A). That is, by closing each opening 36 a of the communication hole 36 by the closing portion 38, even if the suction mechanism 28 has a low output, the outside air is sucked through the suction hole 26 and the roll placed on the platen 25. Since an attractive force can be effectively applied to the paper R, power saving can be achieved.

  In the present embodiment, the openings 36a and 36a of the communication hole 36 are provided on both side surfaces 25b and 25b of the platen 25. However, the present invention is not limited to this, and the region where the roll paper R is placed on the platen 25. It can be provided in other areas. As a result, outside air (cold air) can be efficiently introduced into the plurality of suction holes 26 through the communication holes 36 in a state in which the roll paper R is placed on the platen 25. Can be cooled.

Each closing portion 38 has a size that covers substantially the entire side surface 25b of the platen, whereby one opening 36a of all the communication holes 36 arranged in the Y direction can be closed at a time.
In addition, each communication hole 36 formed in the platen 25 may be provided with a closing portion having a predetermined size for closing one opening 36a. A plurality of closing portions having a predetermined size for closing the openings 36a may be provided.

Further, by opening the closing portions 38 and 38 to open both the openings 36a and 36a of the respective communication holes 36 (FIG. 4B), not only from the suction hole 26 but also through the communication holes 36 The outside air can be sucked. Here, the size of the communication hole 36 with respect to the suction hole 26 is set according to the size of the platen 25, the number of the suction holes 26, and the like. For example, by forming the communication hole 36 having a larger inner diameter than the suction hole 26, a large amount of outside air can be quickly introduced into the internal space K of the pressure chamber 27 by the suction mechanism 28. That is, more outside air is sucked into the platen 25 through the communication hole 36 than the suction hole 26, so that the platen 25 is cooled in a state where the roll paper R is placed on the medium support surface PL. Is possible.
Here, when the platen 25 is cooled, the roll paper R is sucked and held on the platen 25 with the same suction force as that during the printing process by increasing the output of the suction mechanism 28 than during the printing process. it can.

  As described above, in the present embodiment, in order to promote the drying of the ink on the roll paper R placed on the medium support surface PL, the entire platen 25 is covered by the platen heater 51 provided on the back side of the platen 25. The printing process is executed while heating. Since the conveyance of the roll paper R is stopped during the non-printing period between print jobs or the maintenance process period for the recording unit 20, a part of the stopped roll paper R is in contact with the heated platen 25 for a long time. become. In particular, since the platen 25 of the present embodiment employs an aluminum plate having a large heat capacity of 25 mm in order to keep the platen temperature at a predetermined temperature, it takes time for the platen 25 to naturally cool, There is a possibility that the roll paper R in contact with the high temperature platen 25 may be wrinkled.

  Therefore, the ink jet printer 1 according to the present embodiment can forcibly cool the heated platen 25. As described above, since the numerous suction holes 26 formed in the platen 25 are in communication with each other through the communication holes 36, the suction mechanism 28 is opened in the state where the openings 36 a and 36 a of the communication holes 36 are opened. By driving the axial fan 29, outside air (cold air) can be introduced into the platen 25 through the plurality of communication holes 36. That is, when the outside air (cold air) flows through each communication hole 36, the platen 25 is cooled from the inside, and the platen temperature can be rapidly lowered.

  Accordingly, the platen heater 51 is heated to a predetermined temperature by the platen heater 51 only during the printing process to promote drying of the ink, thereby preventing drying unevenness. After the printing process is completed, the output of the suction mechanism 28 is increased and heated. By forcibly cooling the platen 25, it is possible to prevent the roll paper R placed on the platen 25 from being wrinkled by being exposed to heat for a long time. Thus, since the heated platen 25 can be cooled in a shorter time than naturally cooled, the roll paper R can be kept in a good state.

  Moreover, since it can cool from the inner side of the platen 25 if it is the structure of this embodiment, the film-like platen heater 51 can be provided in the back surface 25c side of the platen 25 as a heating apparatus.

  As described above, in the present embodiment, the platen 25 can be directly heated from the back surface 25 c and can be directly cooled from the inside of the platen 25. Such a heating and cooling method can increase the responsiveness of the platen temperature, and can quickly shift from the printing process to the maintenance process.

  Hereinafter, each embodiment of the ink jet printer according to the present invention will be described focusing on the configuration of the medium support table.

[Second Embodiment]
Next, a schematic configuration of the medium support table according to the second embodiment will be described.
FIG. 5 is a plan view showing a schematic configuration of the medium support table of the second embodiment, and FIG. 6 is a cross-sectional view taken along line BB of FIG.
As shown in FIGS. 5 and 6, in this embodiment, a cooling pipe 60 is provided on the back surface 25c side of the platen 25 as a platen cooling means. The cooling pipe 60 is laid so as to meander over the entire back surface of the platen 25 and functions as a flow path for the refrigerant 61. Both ends of the cooling pipe 60 are connected to an external circulation mechanism 65, and the refrigerant 61 such as water is circulated (refluxed) in the cooling pipe 60 through the circulation mechanism 65. The circulation mechanism 65 controls the temperature so that the temperature of the refrigerant 61 supplied to the cooling pipe 60 is always constant. The circulating mechanism 65 cools the warmed refrigerant 61 flowing from the cooling pipe 60 (the platen 25 side) and cools it again. Feed into tube 60 (platen 25 side).

  The laying state of the cooling pipe 60 is not limited to the above-described one, and it is only necessary to form a path through which the refrigerant 61 flows over the entire back surface of the platen 25. At this time, as shown in FIG. 5, the cooling pipe 60 is laid so as to avoid the numerous suction holes 26 formed in the platen 25.

  Further, an external heating device (heating device) 63 is connected to the platen 25, and the platen 25 is heated to a predetermined temperature and held by energy supplied from the external heating device 63.

  When the printing process is completed, the control device CONT starts supplying the refrigerant 61 from the circulation mechanism 65 to the cooling pipe 60, and the temperature of the platen 25 is kept at a predetermined temperature (the roll paper R is in contact with the platen 25 for a long time). The refrigerant 61 is circulated until the temperature decreases to a temperature that does not cause wrinkles.

  According to the configuration of the present embodiment, the platen 25 can be directly cooled by circulating the refrigerant 61 having a predetermined temperature in the cooling pipe 60 provided on the back surface 25 c of the platen 25. Further, the cooling efficiency is improved by circulating the refrigerant 61 having a temperature lower than the outside air temperature, the platen temperature can be lowered in a short time, and the platen 25 can be efficiently cooled to a desired temperature. is there.

[Third Embodiment]
Next, a schematic configuration of the medium support table according to the third embodiment will be described.
FIG. 7 is a cross-sectional view illustrating a schematic configuration of the medium support table of the third embodiment.
The medium support table 24 of the present embodiment includes a platen 25 in which a plurality of suction holes 26 are formed, a pressure chamber 27 in which an opening 27A is formed in a wall portion 27b, and a suction mechanism 28. By driving 28, outside air is sucked into the pressure chamber 27 through the opening 27A. A plurality of openings 27A are formed in each wall portion 27b of the pressure chamber 27 and have, for example, a circular shape in plan view. Or it is good also as a slit-shaped opening along the length direction of each wall part 27b. The shape of the opening 27A is not limited to these. Here, since the opening areas of the plurality of openings 27A are larger than the opening areas of the plurality of suction holes 26, a large amount of outside air is sucked from the plurality of openings 27A when the suction mechanism 28 is driven. .

With such a configuration, the back surface 25c side of the platen 25 constituting the top surface of the pressure chamber 27 is exposed to the outside air (cold air) sucked through the opening 27A formed in the wall portion 27b of the pressure chamber 27. To be cooled. For this reason, the back surface 25c side of the platen 25 is exposed without using a platen heater, and the platen 25 is heated by the external heating device 63.
In the present embodiment, the wall 27b of the pressure chamber 27 may be formed with an opening 27A penetrating the wall 27b. As in the first embodiment, the suction hole 26 has a penetrating direction with respect to the base material of the platen 25. Since it is not necessary to form a plurality of different holes, processing is facilitated.

[Fourth Embodiment]
Next, a schematic configuration of the medium support table according to the fourth embodiment will be described.
FIG. 8 is a cross-sectional view illustrating a schematic configuration of the medium support table of the fourth embodiment.
The medium support table of the present embodiment includes a pressure chamber 27 having a double floor structure, and the internal space of the pressure chamber 27 is divided into two spaces (a first space by a partition 43 provided in parallel with the bottom 42. It is separated into a chamber 44A and a second chamber 44B). An opening 27A formed in the wall portion 27b of the pressure chamber 27 communicates only with the first chamber 44A. The outside air sucked into the first chamber 44 </ b> A through the opening 27 </ b> A by driving the suction mechanism 28 first flows along the back surface 25 c of the platen 25 and passes through the through hole 43 </ b> A formed in the partition portion 43. Flow toward the second chamber 44B. In addition, the number of through-holes 43 </ b> A formed in the partition 43 and the planar shape are not particularly limited.

  In this embodiment, since the internal space of the pressure chamber 27 has a two-layer structure, outside air (cold air) is introduced into a narrow space (first chamber 44 </ b> A) formed between the platen 25 and the partition portion 43. That is, since the outside air introduced through the opening 27A can be flowed only to the first chamber 44A without diffusing into the entire internal space, the outside air introduced into the first chamber 44A follows the back surface 25c of the platen 25. Will flow. As a result, the entire back surface 25c of the platen 25 is uniformly exposed to the outside air (cold air), so that cooling unevenness is eliminated and the platen 25 can be efficiently cooled.

  As described above, the preferred embodiments according to the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the examples. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to.

  In the above-described embodiment, the liquid ejecting apparatus that ejects a liquid such as ink has been described as an example of the printing apparatus. However, the present invention is applied to a liquid ejecting apparatus that ejects or discharges liquid other than ink. Can do. The liquid that can be ejected by the liquid ejecting apparatus includes a liquid material in which particles of the functional material are dispersed or dissolved, and a gel-like fluid.

  In the above-described embodiment, as the liquid ejected from the printing apparatus (liquid ejecting apparatus), not only ink but also a liquid corresponding to a specific application can be applied. By providing the liquid ejecting apparatus with an ejecting head capable of ejecting a liquid corresponding to the specific application, ejecting the liquid corresponding to the specific application from the ejecting head, and attaching the liquid to a predetermined object, A given device can be manufactured. For example, a liquid ejecting apparatus disperses (dissolves) a material such as an electrode material and a color material used in manufacturing a liquid crystal display, an EL (electroluminescence) display, and a surface emitting display (FED) in a predetermined dispersion medium (solvent). It is applicable to a liquid ejecting apparatus that ejects a liquid (liquid material).

In addition, the liquid ejecting apparatus may be a liquid ejecting apparatus that ejects a biological organic material used for biochip manufacturing, or a liquid ejecting apparatus that ejects a liquid that is used as a precision pipette and serves as a sample.
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. May be a liquid ejecting apparatus that ejects a liquid onto the substrate, a liquid ejecting apparatus that ejects an etching solution such as acid or alkali to etch the substrate, or a fluid ejecting apparatus that ejects gel. The present invention can be applied to any one of these liquid ejecting apparatuses.

DESCRIPTION OF SYMBOLS 1 ... Inkjet printer (printing apparatus), K ... Internal space, R ... Roll paper (continuous paper), 20 ... Recording part (printing process part), 25 ... Platen (medium support part), 25c, 51b ... Back surface, 26 ... Suction hole, 27 ... pressure chamber, 27A, 36a ... opening, 28 ... suction mechanism, 30 ... curl pressing part, 36 ... communication hole, 37 ... blockage part, 43, 46 ... partition part, 44A ... first chamber, 44B ... Second chamber 51 ... Platen heater (heating device) 60 ... Cooling pipe 61 ... Refrigerant 63 ... External heating device (heating device) 65 ... Circulation mechanism PL ... Medium support surface CONT ... Control device

Claims (6)

A medium support portion formed with a plurality of suction holes penetrating from the medium support surface supporting the continuous paper to the back surface, and a communication hole communicating the plurality of suction holes with each other ;
A print processing unit for performing print processing on the continuous paper;
A pressure chamber provided on the back surface side and communicating with the plurality of suction holes;
A suction mechanism that applies suction force to the continuous paper disposed on the medium support surface through the plurality of suction holes during execution of the printing process;
A heating device for heating the medium support unit during execution of the printing process;
A control device for controlling the suction mechanism,
The communication hole opens in a region other than a region where the continuous paper is placed in the medium support unit,
The control apparatus drives the suction mechanism at an output higher than an output at the time of the printing process at a time other than the printing process. The printing apparatus according to claim 1 , further comprising a closing portion that closes the opening of the communication hole. 3. The printing apparatus according to claim 1, wherein a cooling pipe for flowing a refrigerant is laid in a region other than a region where the plurality of suction holes are formed on the back surface. The printing apparatus according to claim 3 , further comprising a circulation mechanism that is connected to the cooling pipe and supplies the refrigerant to the cooling pipe at a constant temperature. A medium support portion having a plurality of suction holes penetrating from the medium support surface supporting the continuous paper to the back surface;
A print processing unit for performing print processing on the continuous paper;
A pressure chamber provided on the back surface side and communicating with the plurality of suction holes;
A suction mechanism that applies suction force to the continuous paper disposed on the medium support surface through the plurality of suction holes during execution of the printing process;
A heating device for heating the medium support unit during execution of the printing process;
A control device for driving the suction mechanism,
The pressure chamber is formed with an opening for communicating the internal space for communicating the plurality of suction holes with each other and the space outside the pressure chamber, with the medium support portion serving as a top surface.
The control device drives the suction mechanism at an output higher than that at the time of the printing process at a time other than the printing process. The pressure chamber is
A partition having a communication hole that divides the internal space into at least a first chamber and a second chamber and partially communicates the first chamber and the second chamber;
The printing apparatus according to claim 5 , wherein the opening is formed so that the first chamber having the medium support portion as a top surface communicates with the outside.

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