JP5067878B2 - Inkjet printer - Google Patents

Description

  The present invention relates to an inkjet printer that performs printing by ejecting ink onto a recording medium, for example.

2. Description of the Related Art Inkjet printers are widely used in which ink is supplied from an ink cartridge to a recording head, and ink droplets are ejected from the recording head onto a recording medium to record an image or a character.
Such an ink jet system is widely used not only for small printers used for homes and small offices, but also for large printers capable of printing on large format media exceeding 1,000 mm width.
A conveyance plate (such as a platen) that constitutes a conveyance path of a recording medium in an ink jet printer has different heat dissipation characteristics depending on parts such as both end portions and a central portion. The difference is particularly noticeable in large printers.
Therefore, as described in Patent Document 1 below, a technique is used in which a plurality of heaters are used, and a platen that supports a recording medium is subjected to heat treatment for each region, thereby improving ink fixability. .
JP-A-8-207262

However, in the ink jet printer described in Patent Document 1, since rectangular heaters are arranged side by side along the direction intersecting the conveyance direction of the recording medium, a boundary region (low temperature region) where no heater exists is recorded. It is formed along the conveyance direction of the medium. Therefore, the specific portion along the recording medium conveyance direction continuously passes over the boundary region of the heater.
The portion of the recording medium that has passed over the boundary area is not heated appropriately compared to the other portions, resulting in temperature unevenness, non-uniform ink fixability, and reduced print quality. End up.

  Therefore, an object of the present invention is to further reduce temperature unevenness of a recording medium when a recording medium conveyance path is heated using a plurality of heaters.

In order to achieve the above object, according to the first aspect of the present invention, there are provided an inkjet head that ejects ink, a conveying unit that conveys a recording medium, and a plurality of conveyance areas of the recording medium in a conveyance path of the recording medium. divided, and is formed by Wakata region between the boundary line of the conveying direction of the recording medium, a heater arrangement region having a pectinate border portions meshing with each other, the heater arrangement region, the arranged along a direction intersecting the parallel virtual line in the conveying direction of the recording medium, comprising: a plurality of heaters for heating the conveying path of the recording medium, wherein the plurality of heaters, the comb-like in the boundary portion, an inkjet printer characterized that you have been arranged so as to mesh with each other.
According to a second aspect of the present invention, there is provided an ink jet printer according to the first aspect, further comprising a transport plate constituting a transport path of a recording medium, wherein the heater is provided on the transport plate. provide.
According to a third aspect of the present invention, there is provided the ink jet printer according to the second aspect, wherein the transport plate is a single plate continuous in the width direction of the recording medium.
According to a fourth aspect of the present invention, the transport plate includes a platen having a flat surface facing the ink jet head, a first guide plate provided upstream of the platen in the transport direction of the recording medium, and the transport. The inkjet printer according to claim 2 or 3, wherein the inkjet printer is at least one of second guide plates provided on the downstream side in the direction.
According to a fifth aspect of the present invention, there is provided a control means for independently controlling the temperatures of the plurality of heaters, according to any one of the first to fourth aspects. An inkjet printer is provided.
According to a sixth aspect of the present invention, there is provided the ink jet printer according to any one of the first to fifth aspects, wherein the heater is composed of a heating wire that is meandered. .

  According to the present invention, the temperature in the recording medium is provided by providing the heater so that the virtual straight line parallel to the recording medium conveyance direction in the recording medium conveyance area intersects the arrangement area of at least one heater. Unevenness can be reduced.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS.
(1) Outline of Embodiment In this embodiment, in order to improve the ink fixing property and print quality, a heater is provided on a transport plate (a platen, a front guide plate, a rear guide plate) constituting a transport path of a recording medium. By providing the recording medium, the recording medium is heated.
A transport plate such as a platen has a heat radiation characteristic that differs depending on the parts such as both ends and the center part thereof, and is thus heated by a plurality of heaters that are independently controlled for each part.
The plurality of heaters that heat the transport plate are disposed along a direction that intersects the transport direction of the recording medium.

Furthermore, in the present embodiment, these heaters are provided such that the boundary line on the area side of adjacent heater lines in the arrangement area intersects a virtual straight line parallel to the recording medium conveyance direction. .
For example, the heaters are arranged so that the boundary line on the region side of adjacent heater lines is slanted so as not to be parallel to the recording medium conveyance direction, and is zigzag in a comb shape. .
As described above, by arranging the heater, it is possible to prevent a certain point on the recording medium from continuously passing through the boundary portion of the heater that is at a low temperature.
Even if there is a difference in the set temperature between adjacent heaters, the area of the recording medium that passes through the boundary of the heater passes through both heating areas, so that temperature unevenness in the recording medium can be further alleviated. Can do.

(2) Details of Embodiment FIG. 1A is a perspective view showing an appearance of an ink jet printer 1 according to this embodiment, and FIG. 1B shows an internal configuration of the ink jet printer 1 as viewed from the front. FIG. 1C is a perspective view showing an internal configuration of the ink jet printer 1 viewed from the back.
As shown in FIG. 1A, the ink jet printer 1 includes a printer main body 11 and legs 12 that horizontally support the printer main body 11.
As shown in FIG. 1B, the printer main body 11 includes a plurality of inkjet heads 20 provided for each color, and a carriage 21 on which a plurality of the inkjet heads 20 are arranged in parallel in the main scanning direction. ing.

The carriage 21 is mounted so as to be movable in the major axis direction of the pair of guide rails 24.
A drive motor 25 for moving the carriage 21 in the main scanning direction is provided on one end side of the guide rail 24.
The printer main body 11 is provided with a pulley 26a connected to the drive motor 25, a pulley 26b provided on the other end side of the guide rail 24, and an endless belt 27 stretched between the pulley 26a and the pulley 26b. ing.
The driving force by the driving motor 25 is transmitted to the endless belt 27 via the pulleys 26a and 26b, so that the carriage 21 is conveyed.
As shown in FIG. 1C, the printer main body 11 is provided with an ink cartridge 23 for supplying ink via an ink supply tube (not shown) made of a flexible tube.

The printer main body 11 is provided with a media setting unit 22 for attaching a sheet-like medium (recording medium S), from which the recording medium S is supplied.
The printer main body 11 is provided with a plurality of pairs of conveying rollers 28 and 29 along the guide rail 24. The transport rollers 28 and 29 function as a transport unit that transports the recording medium S in a direction orthogonal to the transport direction of the carriage 21 (main scanning direction of the inkjet head 20).
The printer main body 11 is provided with a platen 15 that supports the recording medium S conveyed by the conveying rollers 28 and 29. The platen 15 is a member made of a single plate-like metal having a flat surface extending in the main scanning direction of the inkjet head 20. The platen 15 is provided so as to face the inkjet head 20, and the ink particles are ejected from the inkjet head 20 in the region of the platen 15.

The printer body 11 is provided with a front guide plate 16 and a rear guide plate 17 that guide the transport direction of the recording medium S before and after the transport direction of the recording medium S of the platen 15.
The platen 15, the front guide plate 16, and the rear guide plate 17 constitute a conveyance path for the recording medium S. The platen 15, the front guide plate 16, and the rear guide plate 17 are provided with heating means for heating these members. Details of the heating means will be described later.

FIG. 2A is a perspective view showing a schematic configuration of the conveyance path of the recording medium S, and FIG. 2B is a cross-sectional view showing a schematic configuration of the conveyance path of the recording medium S.
FIG. 3 is an enlarged view showing a fixing portion of the platen 15.
As shown in FIG. 2, a rear guide plate 17 is provided upstream of the platen 15 in the conveyance direction of the recording medium S. The rear guide plate 17 functions as a first guide plate.
A front guide plate 16 is provided downstream of the platen 15 in the conveyance direction of the recording medium S. The front guide plate 16 functions as a second guide plate.
The platen 15, the front guide plate 16, and the rear guide plate 17 that constitute the conveyance path of the recording medium S function as a conveyance plate.
The front guide plate 16 is a guide plate that guides the recording medium S from the platen 15 in the paper discharge direction, and is formed so that the transport surface of the recording medium S draws a gentle arc.
The rear guide plate 17 is a guide plate that guides the recording medium S from the media setting unit 22 toward the platen 15, and is similarly formed so that the transport surface of the recording medium S draws a gentle arc.

The platen 15 is a transport plate made of a single aluminum plate formed by extrusion. A print heater 30 for heating the platen 15 is disposed on the back surface of the platen 15 (the surface opposite to the surface facing the inkjet head 20).
A front heater 40 and a rear heater 50 are also provided on the rear surfaces of the front guide plate 16 and the rear guide plate 17, respectively.
The print heater 30, the front heater 40, and the rear heater 50 are disposed for the purpose of heating the recording medium S in order to improve the fixing property of the ink and the print quality, that is, to maximize the ink capability. .
The rear heater 50 has a function of heating the recording medium S (preheating) before fixing the ink to the recording medium S.
The print heater 30 has a function of improving the adsorptivity of the ink to the recording medium S and improving the printing quality.
The front heater 40 has a function of drying the ink after fixing the ink to the recording medium S (after drawing).

The print heater 30, the front heater 40, and the rear heater 50 are configured by a conductive heating wire (heater wire) having a high electrical resistance, such as a nichrome wire. The heating wire is covered with, for example, silicon rubber or a glass braid by winding a resistance wire around a glass core. The detailed wiring state of the heating lines constituting these heaters will be described later.
As shown in FIG. 3, the heating wire constituting the print heater 30 is disposed in a heater groove 61 formed by cutting the back surface of the platen 15. Furthermore, an aluminum heater pressing plate 62 is provided on the back surface of the platen 15 so as to cover (close) the opening of the heater groove 61 in which the heating wire is disposed.
The heater groove 61 may be formed at the same time when the platen 15 is formed by extrusion. In addition, the heater groove 61 may be formed when the platen 15 is extruded and the curved portion may be formed by cutting.
The members (materials) forming the heater pressing plate 62 and the platen 15 preferably have the same thermal expansion coefficient (linear expansion coefficient).

The platen 15 is attached to the platen post 64 through a spacer 63 as a heat insulating material together with the heater pressing plate 62. The platen 15 is fixed by attaching the platen post 64 to the base 65.
The platen post 64 is a support member for fixing the platen 15 to the base portion 65 (printer body portion 11), and is made of an aluminum member. The platen post 64 may be formed of a plastic (resin) member having strength and heat resistance. A plurality of attachment portions of rectangular platen posts 64 elongated in the width direction are attached to the platen 15 in the longitudinal direction of the platen 15, and preferably a plurality of attachment portions are attached at equal intervals.
The positioning spacer 63 of the platen 15 is preferably formed of a plastic (synthetic resin) member having heat resistance and a low linear expansion coefficient.
The spacer 63 is formed of a member that suppresses heat conduction (has heat insulation) in order to provide a function as heat insulation means between the platen 15 and the platen post 64. The spacer 63 is provided with a plurality of concave grooves on the surface facing the platen 15 in order to reduce the contact area with the platen 15 (heater pressing plate 62).

The mounting surface of the platen 15 in the platen post 64 is provided with a plurality of concave grooves in order to reduce the contact area with the platen 15 side. By providing such a concave groove, the amount of heat escaping from the platen 15 side to the platen post 64 (base portion 65) side can be reduced, so that the heating control of the platen 15 can be performed efficiently.
Further, in order to reduce the amount of heat escaping from the platen 15 side to the platen post 64 (base portion 65) side, the platen 15 is fixed to the platen post using screws having different diameters in the fixed side and fixed side regions called stepped screws. 64 is fixed.
Specifically, by using a screw having a diameter of the region inserted into the platen post 64 smaller than the diameter of the region inserted into the platen 15 side, the platen post 64 (base 65) side from the platen 15 side through the mounting screw. The amount of heat that escapes can be reduced.
In addition, as a washer for the mounting screw, a disc spring (diaphragm spring) in which a disc-like spring is bulged like a plate is used, so that the platen 15 is fixed to the platen post 64 with an appropriate pressure. can do.

A platen post 64 provided at the center in the longitudinal direction of the platen 15 is used as a fixing portion for positioning, and screw holes for fixing the platen post 64 and the platen 15 are formed in a circular shape. Then, screw holes for fixing the platen post 64 and the platen 15 disposed at portions other than the fixing portions for positioning are formed in an oval shape (long hole) extending in the longitudinal direction of the platen 15.
By forming the screw holes in this manner, it is possible to cope with deformation of the platen 15 that expands and contracts due to a temperature change, and it is possible to suppress stress (strain force) from acting on the platen 15. Thereby, since deformation of the platen 15 due to temperature change can be reduced, the flatness of the platen 15 can be appropriately maintained, and deterioration in image quality can be suppressed.

As shown in FIG. 2, the heating lines constituting the front heater 40 and the rear heater 50 are disposed on the back surfaces of the front guide plate 16 and the rear guide plate 17.
Like the platen 15, the front guide plate 16 is made of a single aluminum plate. Since it is assumed that the front guide plate 16 is removed relatively frequently during maintenance of the equipment, the weight of the front guide plate 16 is reduced by using an aluminum member.
The front guide plate 16 is an area where the medium is dried after printing, and the heating temperature by the front heater 40 is set to be relatively high.
Therefore, the front guide plate 16 also takes into account deformation due to thermal expansion in the same manner as the platen 15, and a screw hole for fixing the front guide plate 16 provided at the center of the fixing portion 66 is formed in a circular shape, and other screw holes are formed. Is formed in an oval shape (long hole) extending in the longitudinal direction of the platen 15.

The fixing portion 66 is an attachment region for fixing the front guide plate 16 to the printer main body portion 11 and is provided adjacent to the paper discharge side of the platen 15 so as to extend in the longitudinal direction of the platen 15.
Further, the front guide plate 16 is provided with an aluminum back plate 18 that functions as a lid for suppressing heat of the front heater 40 from escaping to the outside.
The members (materials) forming the back plate 18 and the front guide plate 16 are also preferably equal in thermal expansion coefficient (linear expansion coefficient).
In order to enhance the heat insulating effect, a heat insulating member may be provided between the front heater 40 and the back plate 18. However, this heat insulating member is attached by a fixing method corresponding to deformation due to temperature change of the front guide plate 16.

The rear guide plate 17 is made of a single aluminum plate, like the platen 15.
The rear guide plate 17 is a region in which residual heat is applied to the medium before printing, and the heating temperature by the rear heater 50 is set lower than that of the front guide plate 16.
The rear guide plate 17 has a low heating temperature and a small deformation amount due to thermal expansion. Moreover, it is not assumed that it removes frequently. For this reason, the rear guide plate 17 may be formed of a single iron plate.
Although not shown, a media cooling unit having a blower function for cooling the recording medium S after passing through the front guide plate 16 may be provided. This media cooling unit is for cooling the surface of the recording medium S after printing and speeding up drying, and is a device that is attached to the printer main body 11 or a device that is placed on a dedicated stand. Is used.

By providing the media cooling unit, the recording medium S can be taken up simultaneously with printing even during high-speed printing.
As described above, in the ink jet printer 1 according to the present embodiment, the optimum temperature setting for the recording medium S can be performed by providing the 3-way heating means including the print heater 30, the front heater 40, and the rear heater 50. Each heater can be controlled independently by a printer operation panel (not shown).
In the ink jet printer 1 configured as described above, the carriage 21 is mainly moved while the recording medium S is fed by the transport rollers 28 and 29 while the heating of the platen 15, the front guide plate 16 and the rear guide plate 17 is controlled during the printing process. Scanning is performed in the scanning direction, and recording (printing) is performed by spraying ink particles from the inkjet head 20 onto the recording medium S.

Next, details of the heater configurations of the print heater 30, the front heater 40, and the rear heater 50 that heat the conveyance path of the recording medium S described above will be described.
Since the print heater 30, the front heater 40, and the rear heater 50 all have the same heater configuration, the heater configuration of the print heater 30 will be described here as an example.
FIG. 4A is a diagram illustrating an example of the heater configuration of the print heater 30.
As shown in FIG. 4A, the print heater 30 for heating the platen 15 (conveying plate) is composed of three heating wires (heater wires) of heater wires 31, 32, and 33. The heater wires 31, 32, and 33 are arranged along a direction that intersects the transport direction of the recording medium S.
The heater wire 31 and the heater wire 33 generate heat for heating an end region in a direction (width direction of the recording medium S) that intersects the conveyance direction of the recording medium S in the platen 15 (conveyance path of the recording medium S). Is a line. The arrangement | positioning area | region of the heater wire 31 and the heater wire 33 is each shown by the area | region 31a and the area | region 33a.
The heater wire 32 is a heating wire for heating the central region in the width direction of the recording medium S. A region where the heater wire 32 is disposed is indicated by a region 32a.
The heater wires 31, 32, and 33 are meandered so as to meander in the width direction of the recording medium S in each of the regions 31a, 32a, and 33a.
As described above, the print heater 30, the front heater 40, and the rear heater 50 are respectively provided with heating lines for heating the three end regions and the central region.

The conveyance path of the recording medium S has different heat dissipation characteristics depending on the part. Therefore, in order to keep the temperature of the conveyance path of the recording medium S uniform, the plurality of heater wires 31, 32, 33 are arranged in each region as described above, and in a control unit (not shown), these heater wires 31, 32, 33, It is comprised so that the temperature of 33 may be controlled independently, respectively. In this case, feedback control is performed on the temperature of each of the regions 31a, 32a, and 33a based on the detection result of the temperature detection element individually provided in each region.
For example, both ends of the conveyance path of the recording medium S have a relatively high heat dissipation rate, so that the temperature is set higher than the central portion.
Note that the temperature control of the conveyance path of the recording medium S by the print heater 30, the front heater 40, and the rear heater 50 is stopped (off) when the inkjet printer 1 is in a standby state. However, in order to shorten the startup time, the conveyance path of the recording medium S may be kept at a predetermined temperature even when the inkjet printer 1 is in the standby state.

The heater lines 31, 32, and 33 are arranged such that the boundary lines on the area side of adjacent heater lines in the disposed areas 31 a, 32 a, and 33 a intersect a virtual straight line parallel to the transport direction of the recording medium S. Is provided. That is, the heater wires 31, 32, and 33 are provided so that the boundary with the adjacent heater wire arrangement region is not parallel to the transport direction of the recording medium S.
That is, in the present embodiment, an imaginary straight line parallel to the conveyance direction of the recording medium S in the conveyance area of the recording medium S is provided so as to intersect the arrangement area of at least one heater line.

The heater groove 61 on the back surface of the platen 15 is formed in accordance with the wiring specifications of the print heater 30, and the print heater 30 is configured by arranging heater wires 31, 32, 33 in the heater groove 61. Yes.
The front heater 40 is configured by attaching heater wires to the front guide plate 16 in accordance with the wiring specifications as described above. Similarly, the rear heater 50 is configured by attaching a heater wire to the rear guide plate 17.
Note that the heater wires constituting the front heater 40 and the rear heater 50 may be constituted by, for example, an aluminum foil heater with a double-sided tape in order to facilitate assembly.

By disposing a plurality of heater wires in this way, it is possible to suppress a certain point on the recording medium S from continuously passing through the boundary portion of the heater wire that becomes a low temperature.
Even if there is a difference in the set temperature between adjacent heater wires, the area of the recording medium S that passes through the boundary between the heater lines passes through both heating areas, so that the temperature unevenness in the recording medium S is further alleviated. can do.
In the present embodiment, since the transport plates (platen 15, front guide plate 16, rear guide plate 17) that constitute the transport path of the recording medium S are configured as a single plate, the transport plate has extremely high thermal resistance. No part (region) is generated. Therefore, the temperature unevenness at the boundary portion of the heater wire in the transport plate can be further alleviated.
As described above, in the present embodiment, since the occurrence of temperature unevenness in the recording medium S can be suppressed (relieved), the ink fixability and the print quality can be improved more appropriately.

In the above-described embodiment, the heater wire 32 at the center of the conveyance path of the recording medium S has been described as being meandered so as to be folded back in the width direction of the recording medium S in the region 32a. The wiring method (distribution method) 32 is not limited to this.
FIG. 4B is a diagram showing an example of another wiring method of the heater wire.
For example, as shown in FIG. 4B, the heater wire 32 at the center of the conveyance path of the recording medium S is not folded back in the width direction of the recording medium S in the area 32a, and the end of the area 32a You may make it meander wiring so that it may wrap in.

Further, the heater wire wiring method for reducing the temperature unevenness at the boundary portion of the heater wire on the transport plate is not limited to the method described above.
4C and 4D are diagrams showing examples of other wiring methods for the heater wires.
For example, as shown in FIG. 4 (c), the border lines on the region side of adjacent heater lines in the regions 31a, 32a, 33a where the heater wires 31, 32, 33 are arranged are comb-shaped and mesh with each other. Thus, the heater wires 31, 32, 33 may be wired.
As described above, it is also possible to reduce the temperature unevenness at the boundary portion of the heater wire by wiring so as to mesh the adjacent heater wires.

Further, for example, as shown in FIG. 4D, the heater wires 31, 32, and 33 are provided so that the boundary with the adjacent heater wire arrangement region is not parallel to the transport direction of the recording medium S. In this state, the boundary line on the region side of the adjacent heater wires may be arranged in a comb shape so as to mesh with each other.
In this way, by arranging adjacent heater wires, it is possible to further alleviate temperature unevenness at the boundary of the heater wires.
In the above-described embodiment, the example in which the heating unit that heats the conveyance plate of the recording medium S is configured by three heater wires (heat generation lines) has been described. However, the number of heater wires that constitute the heating unit of the conveyance plate is as follows. However, the present invention is not limited to this, and can be arbitrarily set according to the shape of the transport plate.

  In the embodiment described above, the inkjet printer 1 in which the platen 15, the front guide plate 16, and the rear guide plate 17 are all provided with heaters for heating has been described. However, the heater for heating is not necessarily provided on all of the platen 15, the front guide plate 16, and the rear guide plate 17. For example, the heater for heating, such as being provided only on the platen 15, only provided on the platen 15 and the front guide plate 16, or only provided on the platen 15 and the rear guide plate 17, the platen 15, the front guide plate 16, What is necessary is just to be arrange | positioned in at least one of the rear guide plates 17. FIG.

In the above-described embodiment, the example in which the heating unit that heats the conveyance plate of the recording medium S is configured by a plurality of heater wires (heating lines) is described. However, the heating unit of the conveyance plate is not limited to this. Absent.
For example, a heating plate may be used instead of the heater wire. Also in this case, in the region where the heat generating plate is disposed, the boundary line on the region side of the adjacent heat generating plate intersects with a virtual straight line parallel to the transport direction of the recording medium S, similarly to the regions 31a, 32a, 33a. Provide as follows.
Further, as shown in the above-described modification, the region where the heat generating plate is disposed may be provided so that the boundary line on the region side of the adjacent heater wire is engaged with each other in a comb shape.
In the above-described embodiment, the conveyance path of the recording medium S is configured by a plate-like member, but the method of configuring the conveyance path of the recording medium S is not limited to this.
For example, the platen 15 may be configured by a wire platen configured by stretching a plurality of wires.

(A) is a perspective view which shows the external appearance of the inkjet printer which concerns on this embodiment, (b) is a perspective view which shows the internal structure of the inkjet printer seen from the front, (c) is the inkjet printer seen from the back surface It is a perspective view which shows the internal structure of this. FIG. 4A is a perspective view illustrating a schematic configuration of a recording medium conveyance path, and FIG. 4B is a cross-sectional view illustrating a schematic configuration of a recording medium conveyance path. It is the enlarged view which showed the fixing | fixed part of the platen. (A)-(d) is the figure which showed an example of the heater structure of a print heater.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inkjet printer 11 Printer main body part 12 Leg part 15 Platen 16 Front guide plate 17 Rear guide plate 18 Rear plate 20 Inkjet head 21 Carriage 22 Media set part 23 Ink cartridge 24 Guide rail 25 Drive motor 26a, b Pulley 27 Endless belt 28, 29 transport roller 30 print heater 31 heater wire 31a region 32 heater wire 32a region 33 heater wire 33a region 40 front heater 50 rear heater 61 heater groove 62 heater pressing plate 63 spacer 64 platen post 65 base 66 fixed portion S recording medium

Claims (6)

An inkjet head that ejects ink;
Conveying means for conveying a recording medium;
The conveyance area of the recording medium in the conveyance path of the recording medium is divided into a plurality of areas, and a comb-tooth-shaped boundary portion that is formed by the divided areas and meshes with each other on the boundary line in the conveyance direction of the recording medium. A heater arrangement area having,
To the heater arrangement region, a plurality of heaters for heating disposed along a direction intersecting the virtual straight line parallel to the conveying direction of the recording medium, the conveyance path of the recording medium,
Equipped with,
Wherein the plurality of heaters in the pectinate border portion, an ink jet printer, characterized that you have been arranged so as to mesh with each other. Comprising a transport plate constituting the transport path of the recording medium;
The inkjet printer according to claim 1, wherein the heater is provided on the transport plate.   The inkjet printer according to claim 2, wherein the transport plate is a single plate that is continuous in a width direction of the recording medium.   The transport plate includes a platen having a flat surface facing the inkjet head, a first guide plate provided upstream of the platen in the transport direction of the recording medium, and a first guide plate provided downstream of the transport direction. The inkjet printer according to claim 2, wherein the inkjet printer is at least one of two guide plates. The inkjet printer according to any one of claims 1 to 4 , further comprising control means for independently controlling temperatures of the plurality of heaters. The heater, the ink jet printer according to claim 1, any one of claims of claims 5, characterized in that it consists of heating wire which is meandering lines.

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