JP2006224460A - Inkjet recording device and recording method by the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inkjet recording device which can excellently dry the ink adhered to a recording surface, even when using a sheet-like medium or a thick plate-like member as a recording medium, and can obtain superb recording results irrespective of the types of used ink and the recording medium. <P>SOLUTION: The inkjet recording device is provided with a controlling means for controlling a main-scan driving means for moving an inkjet head in the main-scanning direction, a sub-scan driving means for moving the recording medium in the sub-scanning direction, and a heating means for radiating and heating the recording area of the recording medium recorded by the inkjet head, based on a preset recording medium, a type of ink or a type of a recording mode. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a medium transfer type ink jet recording apparatus which transports a recording medium and forms a desired image on the recording medium by an ink jet head.

FIG. 11 uses a recording medium in which a long sheet-shaped medium is wound in a roll shape. The sheet-shaped medium is sandwiched between a driving roller and a pinch roller, and the driving roller is driven to rotate to form a sheet. FIG. 4 is a diagram showing a medium transfer type ink jet recording apparatus that performs recording by ejecting ink from nozzles of an ink jet head based on an image signal while transporting the medium in the sub scanning direction and reciprocating the ink jet head in the main scanning direction. is there. In this figure, 1 is a recording apparatus main body, 2 is an inkjet head, 3 is a carriage for supporting the inkjet head 2, 4 is a guide rail provided so that the carriage 3 slides in the main scanning direction, and 5 is a drive roller 51 and a pinch. A driving mechanism 6 comprising a roller 52 is a recording medium made of a sheet-like medium wound in a roll shape and conveyed in the sub-scanning direction by the driving mechanism 5.
When an image is formed on a recording medium with this inkjet recording apparatus, the recording medium 6 is temporarily stopped on the platen 11, the carriage 3 is moved in the main scanning direction, and the inkjet head 2 is based on the image signal. Ink is discharged from the nozzles to form an image for one band, and then the recording medium 6 is conveyed by one band by rotating the driving roller 51 by a predetermined amount to form an image for the next band. An image for one screen is formed by sequentially performing the operation.
In the ink jet recording apparatus using the roll-shaped medium, in the case where long recording or continuous recording of a plurality of screens is performed, the recorded sheet-like medium which is sequentially conveyed comes into contact with the floor and becomes dirty. In order to prevent such a problem, a mechanism for winding the recorded sheet-like medium on the downstream side in the sub-scanning direction is provided. The recorded sheet-like medium take-up mechanism 61 is arranged on the downstream side in the sub-scanning direction from the recording unit including the platen 11 and the inkjet head 2 so that the ink discharged onto the surface of the recorded sheet-like medium is sufficiently dried. It is provided at an appropriate distance.

When ink is ejected onto a recording medium and adjacent ink droplets (dots) are ejected before the ink is dried, the ink mixes with each other to cause blurring, thereby causing a problem that recording quality is remarkably deteriorated. In order to solve this problem, this type of ink jet recording apparatus is provided to heat the recording medium and promote fixing of the ink. Specifically, the platen 11 of the recording apparatus main body 1, that is, the portion where the back surface of the recording medium 6 contacts is provided with heater means, the recording area of the recording medium 6 facing the ink jet head 2, or downstream of the recording direction. The recording medium 6 is heated in the area immediately after recording on the side, and the ink ejected and adhered to the recording surface is dried and fixed.
Japanese Patent Laid-Open No. 04-044851 Japanese Patent Laid-Open No. 01-285352

The above-described recording medium transfer type ink jet recording apparatus is suitable when a recording paper such as plain paper, coated paper, tracing paper, or a material such as film material or fabric is used as the recording medium. For example, when a thick plate-like member such as a presentation board, a sign board, wood, a flute, a metal plate, or a resin board is used as a recording medium, the following inconvenience occurs.
In a configuration in which heating is performed from the platen side of the recording apparatus, that is, from the back side of the recording surface of the recording medium, if the recording medium is a thick material, a delay occurs in the transfer of heat applied from the heater means. When it is difficult to dry the ink adhering to the surface and the recording medium is a material with poor heat transfer, recording is performed on the back surface of the recording medium heated by the heater means. A temperature difference from the front surface portion becomes large, and thermal expansion due to heating occurs only on the back surface side, causing a problem that the recording medium causes thermal warping.
In addition, depending on the type of ink used and the type of recording medium, the fixing status of the ink varies depending on the combination. Therefore, in order to obtain the best recording result, it is based on the experience and knowledge of the operator, or Test recording must be performed in advance using the recording medium to be actually used, and the recording result must be confirmed and the ink and recording medium must be selected and determined. Was very annoying.
The present invention has been made to solve these problems.

  In the ink jet recording apparatus of the present invention, the main scanning driving means for moving the ink jet head in the main scanning direction, the sub scanning driving means for moving the recording medium in the sub scanning direction, and the recording target recorded by the ink jet head A heating means for radiantly heating the recording area of the medium and a control means for controlling each means are provided, and this control means is provided so as to control each means based on preset conditions. Further, the recording condition is set to the type of recording medium and ink or the type of recording mode, and storage means for storing and holding set values corresponding to these is provided, and the control means selects the type of recording medium and ink selected. Alternatively, the setting value corresponding to the type of the recording mode is read from the storage means, and the respective means are controlled based on this.

  According to the ink jet recording apparatus of the present invention, it is possible to satisfactorily dry the ink adhering to the recording surface regardless of whether a sheet-like medium is used as a recording medium or a thick plate-like member is used. Thus, the best recording results can be obtained regardless of the type of ink used and the type of recording medium.

  Main scanning driving means for moving the ink jet head in the main scanning direction, sub scanning driving means for moving the recording medium in the sub scanning direction, and heating for radiatively heating the recording area of the recording medium on which recording is performed by the ink jet head And a control means for controlling the means based on a preset recording medium and ink type or recording mode type.

The ink jet recording apparatus of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing an ink jet recording apparatus according to the present invention. The same reference numerals are given to the same components as those of the conventional apparatus described above.
In the ink jet recording apparatus of the present invention, as described later, the medium transport unit 7 is detachably provided according to the type of the recording medium, and the guide rail 4 on which the ink jet head 2 (carriage 3) and the pinch roller 52 are supported. An elevating mechanism is provided for bringing the platen 11 close (pressure contact) to and away from the platen 11. As shown in FIG. 2, the lifting mechanism supports the support rail 13 that supports the guide rail 4, and supports the support pillar 13 so as to slide in the vertical direction (Z-axis direction in the figure) with respect to the recording apparatus main body 1. A slider 14 attached to the gantry 12, a screw shaft 15 rotatably supported by the gantry 12 so as to engage with a nut member 16 provided on the slider 14, a column 13 that supports the guide rail 4, and a slider 14 and the screw shafts 15 provided on the gantry 12 are provided on both sides of the recording apparatus main body 1 in the Y-axis direction, as shown in FIG. Further, in the lifting mechanism on one side in the Y-axis direction, a lifting drive motor 17 that meshes with a gear 18 provided on the screw shaft 15 is provided on the gantry 12, and further on the gear 18 provided on the screw shaft 15 on both sides. An endless belt is suspended so as to mesh with each other, whereby the rotational driving force of the elevating drive motor 17 is transmitted to the screw shafts 15 on both sides in the Y-axis direction, and the slider 14 to which the nut member 16 on each side is attached. In addition, the support column 13 is configured to be movable in the Z-axis direction in synchronism, that is, to move up and down.
Furthermore, the ink jet recording apparatus of the present invention is provided with radiant heating means 9 configured to be movable in the Z-axis direction in synchronization with the guide rail 4 and the ink jet head 2 and the like.
As shown in FIGS. 1 and 2, the radiant heating means 9 extends in the main scanning direction, that is, the Y-axis direction as in the case of the guide rail 4, and is provided with an (ink discharge nozzle) of the inkjet head 2. ) Positioned on the downstream side in the transport direction of the recording medium in the sub-scanning direction, that is, in the X-axis direction in the figure, directly below the moving path of the tip portion, and supported by the support columns 13 (and the guide rails 4) on both sides in the Y-axis direction Has been. As shown in FIG. 3, the radiant heating means 9 includes a heater 91 made of a rod-shaped halogen heater extending in the main scanning direction and a reflector 92 made of a pair of plate-like members provided so as to face each other with the heater 91 interposed therebetween. The spacer 93 is provided between the pair of reflectors 92 so as to form a predetermined gap, and a support member 94 for attaching the heater 91 to the reflector 92. The reflector 92, which is a plate-like member, has a recess corresponding to the heater 91 attached by the support member 94, and is fixed so as to face each other with the heater 91 interposed therebetween via the spacer 93. And an opening 95 is formed in the Z-axis direction of the figure, that is, in a portion facing the recording area where recording is performed by the inkjet head 2.
Further, as the reflector 92, high-brightness aluminum, which is a material having a high reflectance, is employed.

In the figure, reference numeral 7 denotes a medium transport unit which is a recording medium transport means which can be selectively positioned with respect to the recording apparatus main body 1 in a recording unit (directly below the moving path of the ink jet head 2). 4, the frame 70, and the driving pulley 71 and the driven pulley 72, which are the main driving pulleys disposed opposite to each other in the X-axis direction in the drawing, and the driving pulley 71 and the driven pulley 72 are spanned over the frame 70. A conveyor belt 73 composed of an endless belt, a drive shaft 74 that rotatably supports a drive pulley 71 on a frame 70 via a bearing 78, and a driven shaft that rotatably supports a driven pulley 72 on the frame 70 via a bearing 78. 75, a gear that meshes with a gear 77 attached to the drive shaft 74 and rotationally drives it. It is constituted by a conveyance drive motor 76 attached to the arm 70 (Figure 4 (b)).
In the illustrated embodiment, a set of driving pulley 71, driven pulley 72, and conveying belt 73 are provided in plural on the driving shaft 74 and driven shaft 75, and when the recording operation is performed using this medium conveying unit 7. In other words, the recording medium 8 is placed on the transport belt 73, and the rotational driving force is transmitted to the drive shaft 74 through the gear 77 by the transport drive motor 76, and the drive pulley 71 is rotationally driven to rotate the transport belt 73. And the recording medium 8 placed on the conveyor belt 73 is conveyed in the X-axis direction in the figure.

FIG. 5 is a block diagram showing the configuration of the control device of the ink jet recording apparatus of the present invention. In the figure, 90 is a control unit for performing various controls, 91 is a display means such as a monitor, and 92 is an input of various data or commands. , An operation panel for giving instructions and the like, or input means such as a keyboard and a mouse, and 93 is a storage means for storing and holding various setting conditions.
In this type of inkjet recording apparatus, a plurality of types of recording modes are prepared according to the image quality and recording speed required by the user, and the number of passes is set for each recording mode. For example, in this embodiment: High-speed mode: 1 pass Normal mode: 2 passes; Three kinds of recording modes of high quality mode: 4 passes are prepared, and the number of passes corresponding to the resolution of the ink jet head is set.
Ink fixing, that is, the drying situation varies depending on the type of recording medium used or the type of ink used. For example, when recording is performed in the high-speed mode in a combination where the fixing is poor due to the compatibility between the ink and the recording medium. Is set to increase the amount of electromagnetic waves radiated from the heating means 9, that is, to increase the power applied to the heating means 9, and in the case of recording in the high quality mode with this combination, the inkjet head By controlling the main scanning drive means so as to delay the drive timing, it is possible to obtain a suitable print result by setting the time during which the print area of the print medium is radiantly heated. Therefore, according to the present invention, the optimum setting value of the main scanning driving means, the setting value of the sub-scanning driving means, and the setting value of the heating means are previously stored in the storage means 93 according to the combination of the type of ink and recording medium and the recording mode. It is configured to store, hold, and set, in accordance with the instructed ink, the type of recording medium, and the recording mode, from the storage means 93 and control each means when recording.

Next, a recording operation by the ink jet recording apparatus of the present invention will be described.
Prior to the recording operation, the operator first sets recording conditions and the like.
As the recording condition setting operation, the operator sets the type of the sheet-like medium 6 to be used as the recording medium and the type of ink in the ink jet recording apparatus and selects the recording mode.
This setting operation can be performed by an operation panel of the ink jet recording apparatus or a host device such as a computer. In this embodiment, while confirming the display unit 91 provided in the ink jet recording apparatus main body 1, the same ink jet recording is performed. It is assumed that the operation is performed by an operation panel 92 as an input unit provided in the apparatus main body 1.
In the recording condition setting operation, the operator sets the type of recording medium to be used and the type of ink related to recording by operating the input unit 92 while checking the window of the display unit 91 in the figure. Similarly, the recording mode setting corresponding to the required image quality or recording speed is set by operating the input means while checking the display means 91.
In accordance with the ink selected by the operator and the type of recording medium, the control unit 90 refers to the storage unit 93 and sets the main scanning driving unit stored and held, that is, the moving speed of the inkjet head 2. Recording according to the set value of the sub-scanning drive means, that is, the recording medium conveyance timing (drive timing of the drive roller 51 or the conveyance drive motor 76 of the medium conveyance unit 7), the power applied to the heating means 9, and the recording mode Read the conditions (number of passes, etc.).

When the setting of the recording conditions is completed, the operator sets the recording medium in the recording apparatus main body 1.
When a sheet-like medium such as plain paper or thin film is selected as the recording medium in the setting operation such as the recording condition, the operator is provided on the upstream side of the conveyance path of the recording medium 6 as shown in FIG. The sheet-like medium 6 unwound from the roll-like medium 60 supported by the roll stocker is sequentially conveyed to the sheet-like medium take-up mechanism 61 via the drive roller 51 and the platen 11 to drive the lifting drive motor 17. Then, the slider 14 (the support column 13) and the guide rail 4 are lowered (in the -Z direction in the figure), and the pinch roller 52 is pressed against the driving roller 51 via the sheet-like medium 6, whereby the driving roller 51 and the pinch are pinched. The sheet medium 6 is sandwiched between the rollers 52.

On the other hand, in the setting operation such as the recording condition, when a thick plate-like member such as a sign board or a resin board is selected as the recording medium, the control unit 90 of the recording apparatus main body drives the elevation drive motor 17. Then, the slider 14 (support 13) and the guide rail 4 are raised in the + Z direction in the drawing, and the inkjet head 2 and the pinch roller 52 are separated from the platen 11 and the driving roller 51 and stopped. (Fig. 7)
With the inkjet head 2 and the pinch roller 52 far apart from the platen 11 (drive roller 51), the operator places the medium transport unit 7 shown in FIG.
Next, a flat plate-like member 8 to be recorded is placed on the conveyor belt 73 that appears on the upper surface of the medium conveyance unit 7 attached to the recording apparatus main body 1, and recording is performed on the recording apparatus from the input unit 92. The execution of the initial operation for detecting and positioning the medium 8 is set. In this initial operation, the control unit 90 monitors the output of a sensor (not shown) for detecting a recording medium composed of a reflective optical sensor provided below the slider 3 and moves the elevating drive motor 17. Driven to lower the slider 14 (support 13) and the Y bar 4 in the -Z direction in the figure. A sensor for medium detection is provided upstream of the recording medium conveyance path (X-axis direction in the figure) from the inkjet head 2, and when the pinch roller 52 is in pressure contact with the recording medium 8 (or 6). The output is displaced, that is, adjusted to output “with recording medium”, and the control unit 90 stops the lifting drive motor 17 when detecting that the sensor outputs “with recording medium”. To do. In this state, the recording medium 8 is sandwiched between the conveyance belt 73 and the pinch roller 52. (Figure 2)
Next, the controller 90 drives the conveyance belt 73 by rotating the conveyance drive motor 76 of the medium conveyance unit 7 to convey the recording medium 8 in the −X-axis direction in the drawing. The control unit 90 stops the transport driving motor 76 when the recording medium 8 is sequentially transported and it is detected that “no recording medium” is output from the sensor for medium detection. At this time, the end detection of the recording medium 8 in the X-axis direction, that is, in the medium transport path direction is completed, and then the control device 90 drives the transport driving motor 76 to move the recording medium 8 in the + X-axis direction in the figure. The head sensor and the ink jet head 2 are transported by the distance in the X-axis direction, and the end of the recording medium 8 in the transport path direction is positioned directly below the ink jet head 2 and stopped. As a result, the initial operation is completed, and the recording apparatus enters a standby state. (Figure 2)

In the recording operation, the control unit 90 moves the inkjet head 2 in the main scanning direction, that is, the Y-axis direction in the drawing at a speed corresponding to the set value of the main scanning driving unit read from the storage unit 93, and a computer or the like. The ink jet head 2 (carriage) is ejected from the nozzles of the ink jet head 2 on the basis of the image data obtained from the upper apparatus and the recording conditions such as the number of passes corresponding to the recording mode read from the storage means 93. 3) is reciprocated a plurality of times (or once) in the main scanning direction to form an image for one band. When the recording for one band is completed, the control unit 90 rotationally drives the drive roller 51 or the conveyance drive motor 76 at a timing corresponding to the set value based on the read setting value of the sub-scanning drive unit, and the sheet The medium 6 or the recording medium 8 is conveyed by one band in the sub-scanning direction, that is, in the + Y axis direction in the figure.
Thereafter, an image for one screen is formed by sequentially performing subsequent one-band image formation and conveyance of the recording medium.

During this recording operation, the control unit 90 radiates an electromagnetic wave amount suitable for the recording mode and the type of ink to be used and the recording medium based on the set value read from the storage unit 93. Power.
Simultaneously with these recording operations, the radiation heating means 9 is applied to dry the ink ejected from the inkjet head 2 and adhering to the recording medium 6.
The halogen heater applied to the heater 91 of the present invention is an infrared heater. In this infrared heater, infrared rays are generated from a light source when electric power is supplied. The infrared light radiated from the heater 91 irradiates the recording area on the recording medium 6 (opposite) from the opening 95, that is, the area downstream of the movement path of the recording medium 6 from immediately below the movement path of the inkjet head 2. Is done. As a result, infrared heating occurs in a region irradiated with infrared rays. FIG. 8 is a diagram for explaining the principle of heating, that is, drying of the ink by infrared rays irradiated by the radiant heating means 9 of the present invention, from the radiant heating means 9 irradiated to the ink adhered on the recording medium 6. Infrared rays are divided into a component that reflects on the surface of the ink or the surface of the recording medium 6, a component that passes through the ink and enters the recording medium 6, and a component that is absorbed in the ink. The radiant energy that is absorbed by resonance causes the ink molecules to vibrate, and this vibration generates frictional heat between the ink molecules (or atoms), thereby drying.

  As described above, in the present invention, the amount of radiant energy (electromagnetic wave) irradiated from the heating unit 9 or the time during which the recording area is positioned immediately below the heating unit 9, that is, the time during which the electromagnetic wave is irradiated is adjusted. Even if either a sheet-like medium or a flat plate member is used as the recording medium, the ink can be satisfactorily dried without being affected by the type of recording mode. Is the main feature. In the present invention, the heating means for radiantly heating the recording area of the recording medium on which recording is performed by the ink jet head is configured by a halogen heater so that the recording area is irradiated and absorbed by the ink and the recording medium. Thus, most of the electromagnetic wave for radiant heating is absorbed by the ink, and the ink adhering to the surface of the recording medium is intensively heated rather than the recording medium. That is, in the heating means of the present invention, the radiant energy shown in FIG. 8 is absorbed in the ink while reducing the component that is reflected (loss) reflected on the ink surface and the component that transmits the ink (heating the recording medium). (Heating) component is provided to increase.

  The heating means for radiantly heating the recording area on the surface of the recording medium on which recording was performed by the ink jet head was constituted by a halogen heater.

  A heating means for radiantly heating the recording area on the surface of the recording medium on which recording was performed by the ink jet head was constituted by a quartz glass halogen heater.

  The heating means for radiantly heating the recording area on the surface of the recording medium on which recording was performed by the ink jet head was constituted by a ruby glass halogen heater.

FIG. 9 is a diagram showing the measurement results of the infrared absorption spectrum of two types of white plates (plate-like members) used as the recording medium 6. In this type of white plate, an electromagnetic wave having a wavelength of approximately 3.0 μm or more. When infrared rays having a wavelength of 3.0 μm or more are radiated, the radiation energy is resonantly absorbed in the white plate and infrared heating is generated. Therefore, the electromagnetic wave that irradiates and heats the white plate, which is the recording medium, reduces the components that heat the ink, and heats and dries the ink adhering to the surface, and has a wavelength of 3.0 μm or less. Is preferably used.
Therefore, in the inkjet recording apparatus of the present invention, by employing a halogen heater, a halogen heater made of a quartz glass tube, and a halogen heater made of a ruby glass tube as radiation heating means, respectively, without heating the recording medium, The ink adhered on the surface was provided to be heated and dried.

FIG. 10 is a diagram showing a relative spectral distribution showing the wavelength and irradiation intensity of the electromagnetic wave irradiated from these radiant heating means, and as shown in the figure, the peak of irradiation intensity is 3.0 μm or less in any heater. In addition, it has a characteristic of being irradiated with infrared rays close to visible light, so-called near infrared rays.
As shown in FIG. 3, the halogen heater according to the first embodiment includes a filament made of tungsten provided at a central portion of a bulb made of a glass tube formed in a rod shape so as to extend in the Y-axis direction, and a gas that does not chemically react with the filament. Is enclosed, and an infrared ray having the characteristics shown in FIG. 10 is generated by passing a current through the filament.

Usually, the ink used for recording is a mixture comprising a dye having a pigment and a solvent as a liquid that dissolves the dye. Heating of the solvent is important for drying the ink. Here, according to the halogen heater in the first embodiment, as shown in FIG. 10, infrared light having a wavelength of visible light is also generated. Therefore, infrared light having a wavelength corresponding to the visible light region is reflected by the dye of the ink. Therefore, the heating efficiency is lowered, and the ratio of the reflection component is changed due to the difference in color of the ink on the recording medium, which may cause uneven drying.
Therefore, in the second embodiment of the present invention, the radiant heating means is configured using a halogen heater whose bulb is formed of quartz glass. As shown in FIG. 10, this quartz glass halogen heater has a characteristic that the wavelength distribution of generated infrared rays is smaller in the wavelength region corresponding to visible light than the halogen lamp of the first embodiment. Thus, the reflection component can be reduced and the heating efficiency can be increased.

  Further, in the third embodiment of the present invention, a halogen heater having a bulb formed of ruby glass is used as a radiant heating means. As shown in FIG. 10, the ruby glass halogen heater has a characteristic that the wavelength distribution of the generated infrared rays is even smaller in the visible light region, and this influences the reflectance due to the color of the ink. As much as possible, the unevenness of drying is less likely to occur, and the heating efficiency can be further increased.

  The halogen heater as the radiant heating means of the present invention is an infrared heater, and the electric energy input to the infrared heater is converted into radiant energy except for a part of visible light shown in FIG. Based on the recording conditions, etc., the recording speed of the inkjet head read from the storage means and the recording medium conveyance timing (radiation heating time), or the amount of electromagnetic waves irradiated from the heating means can be determined. Can be optimized according to the type and the recording mode, and the ink can be satisfactorily dried.

Further, as shown in FIG. 3, the radiant heating means 9 is configured by providing a plurality of heater units 9a to 9c in parallel in the main scanning direction, that is, the Y-axis direction in the figure, and the size of the recording medium 6 on which recording is performed. It may be configured to be driven (supplied with power) individually according to the above.
For example, as shown in the lower diagram of FIG. 3, when using a large recording medium such as A0 size, the heater units 9a to 9c are all driven, and when using an A1 recording medium, the heater units 9a and 9b are connected. In addition, by adopting a configuration in which only 9a is driven in the case of the A2 size, it is possible to appropriately select and set an optimal heating condition.

It is a front view which shows the structure of the inkjet recording device of this invention. 1 is a side view illustrating a configuration of an ink jet recording apparatus of the present invention. It is a figure which shows the structure of the radiation heating means of the inkjet recording device of this invention. It is a figure explaining the medium conveyance unit which is a recording medium conveyance means of this invention. It is a block diagram which shows the structure of the control apparatus of the inkjet recording device of this invention. It is a figure which shows the recording with respect to the sheet-like medium by the inkjet recording device of this invention. It is explanatory drawing of recording with respect to recording media, such as a plate-shaped member, by the inkjet recording device of this invention. It is a figure explaining the heating principle of the ink by the infrared rays irradiated by the radiation heating means of this invention. It is a figure which shows the measurement result of the infrared absorption spectrum in the white board used as a recording medium. It is a relative spectrum distribution figure which shows the wavelength and irradiation intensity | strength of the electromagnetic waves irradiated from a radiation heating means. It is a figure which shows the structure of the conventional inkjet recording device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording device main body 2 Inkjet head 3 Carriage 4 Guide rail 5 (Medium) drive mechanism 6 Sheet-like medium 7 Recording medium conveyance means 8 Recording medium 9 Control part

Claims (12)

In an inkjet recording apparatus that records on the surface of a recording medium by ejecting ink droplets according to a recording signal,
Main scanning driving means for moving the ink jet head in the main scanning direction, sub scanning driving means for moving the recording medium in the sub scanning direction, and heating for radiantly heating the recording area of the recording medium on which recording is performed by the ink jet head Means and control means for controlling each means,
The ink jet recording apparatus, wherein the control means controls each of the means based on a preset recording condition.   2. The ink jet recording apparatus according to claim 1, wherein the preset recording condition is a recording medium and an ink type or a recording mode type. Storage means for individually storing and holding set values according to the recording medium and the type of ink or the type of recording mode;
The control means reads out a set value corresponding to the selected recording medium and ink type or recording mode type from the storage means, and controls each means based on the set value. The ink jet recording apparatus according to 1 or 2.   4. The ink jet according to claim 1, wherein the control means controls the main scanning drive means so as to vary a moving speed of the ink jet head based on a preset recording condition. Recording device.   4. The control unit according to claim 1, wherein the control unit controls the sub-scanning driving unit so as to adjust a movement timing of the recording medium based on a preset recording condition. Inkjet recording device.   4. The ink jet recording apparatus according to claim 1, wherein the control unit performs control so as to adjust electric power applied to the heating unit based on a preset recording condition. A heating means for radiantly heating a recording area of a recording medium on which recording is performed by the inkjet head is configured by a halogen heater,
7. The electromagnetic wave according to claim 1, wherein most of the electromagnetic wave that is irradiated in the recording area and absorbed by the ink and the recording medium and radiantly heats the ink is absorbed by the ink. The ink jet recording apparatus described.   8. The ink jet recording apparatus according to claim 7, wherein the halogen heater of the heating means is made of quartz glass.   8. The ink jet recording apparatus according to claim 7, wherein the halogen heater of the heating means is made of ruby glass.   10. The ink jet recording apparatus according to claim 7, wherein the heating unit radiates and heats a recording area on the surface of the recording medium with an electromagnetic wave having a wavelength of 3.0 [mu] m or less.   11. The ink jet recording apparatus according to claim 10, wherein the heating means radiatively heats the recording area on the surface of the recording medium with an electromagnetic wave having a wavelength longer than that of visible light. Main scanning driving means for moving the ink jet head in the main scanning direction, sub scanning driving means for moving the recording medium in the sub scanning direction, and heating for radiantly heating the recording area of the recording medium on which recording is performed by the ink jet head And a control method for controlling each of the above means, and a recording method by an ink jet recording apparatus for recording on the surface of a recording medium by ejecting ink droplets from an ink jet head according to a recording signal,
A recording method using an ink jet recording apparatus, comprising: a step of referring to preset recording conditions; and a step of driving and controlling main scanning driving means, sub-scanning driving means and heating means based on the referenced conditions.

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